scottk/wlan-ap
1
0
Fork 0
mirror of https://github.com/Telecominfraproject/wlan-ap.git synced 2025-10-29 17:42:41 +00:00
Code Issues Packages Projects Releases 10 Wiki Activity
Files
1d4b8ab7ff2b2f1ba4302a1bca8d344dff81e414
wlan-ap/patches/0002-Revert-toolchain-gcc-Remove-support-for-GCC-5.patch
John Crispin 1e7efc68a8 config.yml: update 21.02 baseline from RC2->GA 
Signed-off-by: John Crispin <john@phrozen.org>
2021-09-04 08:14:58 +02:00

3700 lines
133 KiB
Diff
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

From 2947f1c2ac5e300d209b952979da30e92330a01f Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Mon, 25 Jan 2021 06:40:20 +0100
Subject: [PATCH 02/43] Revert "toolchain: gcc: Remove support for GCC 5"
This reverts commit 080dc619d4780a1f7b14082b77b28686e694f72d.
---
toolchain/gcc/Config.in | 5 +
toolchain/gcc/Config.version | 7 +-
toolchain/gcc/common.mk | 4 +
.../001-revert_register_mode_search.patch | 65 +
.../patches/5.5.0/002-case_insensitive.patch | 14 +
.../gcc/patches/5.5.0/010-documentation.patch | 23 +
.../patches/5.5.0/020-no-plt-backport.patch | 28 +
.../5.5.0/040-fix-mips-ICE-PR-68400.patch | 23 +
...efine-__always_inline-in-local_atomi.patch | 1092 +++++++++++++++++
.../gcc/patches/5.5.0/200-musl_config.patch | 309 +++++
.../gcc/patches/5.5.0/201-musl_arm.patch | 43 +
.../gcc/patches/5.5.0/202-musl_mips.patch | 35 +
.../gcc/patches/5.5.0/203-musl_powerpc.patch | 209 ++++
toolchain/gcc/patches/5.5.0/204-musl_sh.patch | 39 +
.../gcc/patches/5.5.0/205-musl_x86.patch | 41 +
.../gcc/patches/5.5.0/206-musl_aarch64.patch | 31 +
.../patches/5.5.0/207-musl_fixincludes.patch | 30 +
.../patches/5.5.0/209-musl_libstdc++.patch | 72 ++
.../gcc/patches/5.5.0/230-musl_libssp.patch | 13 +
.../patches/5.5.0/240-musl-libitm-fixes.patch | 61 +
.../gcc/patches/5.5.0/250-add-musl.patch | 120 ++
.../5.5.0/260-musl-add-unwind-fix.patch | 34 +
.../270-musl-add-powerpc-softfloat-fix.patch | 24 +
.../280-musl-disable-ifunc-by-default.patch | 36 +
.../300-mips_Os_cpu_rtx_cost_model.patch | 14 +
.../5.5.0/800-arm_v5te_no_ldrd_strd.patch | 11 +
.../5.5.0/810-arm-softfloat-libgcc.patch | 25 +
.../gcc/patches/5.5.0/820-libgcc_pic.patch | 36 +
.../5.5.0/830-arm_unbreak_armv4t.patch | 13 +
.../5.5.0/840-armv4_pass_fix-v4bx_to_ld.patch | 19 +
.../patches/5.5.0/850-use_shared_libgcc.patch | 47 +
.../patches/5.5.0/851-libgcc_no_compat.patch | 12 +
.../patches/5.5.0/870-ppc_no_crtsavres.patch | 11 +
.../patches/5.5.0/880-no_java_section.patch | 11 +
.../gcc/patches/5.5.0/881-no_tm_section.patch | 11 +
.../patches/5.5.0/900-bad-mips16-crt.patch | 9 +
.../gcc/patches/5.5.0/910-mbsd_multi.patch | 222 ++++
.../5.5.0/920-specs_nonfatal_getenv.patch | 15 +
.../5.5.0/930-fix-mips-noexecstack.patch | 111 ++
.../931-fix-MIPS-softfloat-build-issue.patch | 167 +++
.../5.5.0/940-no-clobber-stamp-bits.patch | 11 +
.../5.5.0/950-cpp_file_path_translation.patch | 182 +++
toolchain/gcc/patches/5.5.0/960-go_libm.patch | 11 +
.../gcc/patches/5.5.0/970-warn_bug.patch | 11 +
44 files changed, 3306 insertions(+), 1 deletion(-)
create mode 100644 toolchain/gcc/patches/5.5.0/001-revert_register_mode_search.patch
create mode 100644 toolchain/gcc/patches/5.5.0/002-case_insensitive.patch
create mode 100644 toolchain/gcc/patches/5.5.0/010-documentation.patch
create mode 100644 toolchain/gcc/patches/5.5.0/020-no-plt-backport.patch
create mode 100644 toolchain/gcc/patches/5.5.0/040-fix-mips-ICE-PR-68400.patch
create mode 100644 toolchain/gcc/patches/5.5.0/050-libitm-Don-t-redefine-__always_inline-in-local_atomi.patch
create mode 100644 toolchain/gcc/patches/5.5.0/200-musl_config.patch
create mode 100644 toolchain/gcc/patches/5.5.0/201-musl_arm.patch
create mode 100644 toolchain/gcc/patches/5.5.0/202-musl_mips.patch
create mode 100644 toolchain/gcc/patches/5.5.0/203-musl_powerpc.patch
create mode 100644 toolchain/gcc/patches/5.5.0/204-musl_sh.patch
create mode 100644 toolchain/gcc/patches/5.5.0/205-musl_x86.patch
create mode 100644 toolchain/gcc/patches/5.5.0/206-musl_aarch64.patch
create mode 100644 toolchain/gcc/patches/5.5.0/207-musl_fixincludes.patch
create mode 100644 toolchain/gcc/patches/5.5.0/209-musl_libstdc++.patch
create mode 100644 toolchain/gcc/patches/5.5.0/230-musl_libssp.patch
create mode 100644 toolchain/gcc/patches/5.5.0/240-musl-libitm-fixes.patch
create mode 100644 toolchain/gcc/patches/5.5.0/250-add-musl.patch
create mode 100644 toolchain/gcc/patches/5.5.0/260-musl-add-unwind-fix.patch
create mode 100644 toolchain/gcc/patches/5.5.0/270-musl-add-powerpc-softfloat-fix.patch
create mode 100644 toolchain/gcc/patches/5.5.0/280-musl-disable-ifunc-by-default.patch
create mode 100644 toolchain/gcc/patches/5.5.0/300-mips_Os_cpu_rtx_cost_model.patch
create mode 100644 toolchain/gcc/patches/5.5.0/800-arm_v5te_no_ldrd_strd.patch
create mode 100644 toolchain/gcc/patches/5.5.0/810-arm-softfloat-libgcc.patch
create mode 100644 toolchain/gcc/patches/5.5.0/820-libgcc_pic.patch
create mode 100644 toolchain/gcc/patches/5.5.0/830-arm_unbreak_armv4t.patch
create mode 100644 toolchain/gcc/patches/5.5.0/840-armv4_pass_fix-v4bx_to_ld.patch
create mode 100644 toolchain/gcc/patches/5.5.0/850-use_shared_libgcc.patch
create mode 100644 toolchain/gcc/patches/5.5.0/851-libgcc_no_compat.patch
create mode 100644 toolchain/gcc/patches/5.5.0/870-ppc_no_crtsavres.patch
create mode 100644 toolchain/gcc/patches/5.5.0/880-no_java_section.patch
create mode 100644 toolchain/gcc/patches/5.5.0/881-no_tm_section.patch
create mode 100644 toolchain/gcc/patches/5.5.0/900-bad-mips16-crt.patch
create mode 100644 toolchain/gcc/patches/5.5.0/910-mbsd_multi.patch
create mode 100644 toolchain/gcc/patches/5.5.0/920-specs_nonfatal_getenv.patch
create mode 100644 toolchain/gcc/patches/5.5.0/930-fix-mips-noexecstack.patch
create mode 100644 toolchain/gcc/patches/5.5.0/931-fix-MIPS-softfloat-build-issue.patch
create mode 100644 toolchain/gcc/patches/5.5.0/940-no-clobber-stamp-bits.patch
create mode 100644 toolchain/gcc/patches/5.5.0/950-cpp_file_path_translation.patch
create mode 100644 toolchain/gcc/patches/5.5.0/960-go_libm.patch
create mode 100644 toolchain/gcc/patches/5.5.0/970-warn_bug.patch
diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
index f0fc31d567..1aadae6839 100644
--- a/toolchain/gcc/Config.in
+++ b/toolchain/gcc/Config.in
@@ -6,6 +6,10 @@ choice
help
Select the version of gcc you wish to use.
+ config GCC_USE_VERSION_5
+ bool "gcc 5.x"
+ depends on !arc
+
config GCC_USE_VERSION_7
bool "gcc 7.x"
depends on !arc
@@ -34,6 +38,7 @@ config EXTRA_GCC_CONFIG_OPTIONS
config GCC_DEFAULT_PIE
bool
prompt "Build executable with PIE enabled by default" if TOOLCHAINOPTS
+ depends on !GCC_USE_VERSION_5
default n
help
Use gcc configure option --enable-default-pie to turn on -fPIE and -pie by default.
diff --git a/toolchain/gcc/Config.version b/toolchain/gcc/Config.version
index 967ce9e489..09deae3bf1 100644
--- a/toolchain/gcc/Config.version
+++ b/toolchain/gcc/Config.version
@@ -1,3 +1,7 @@
+config GCC_VERSION_5
+ default y if GCC_USE_VERSION_5
+ bool
+
config GCC_VERSION_7
default y if GCC_USE_VERSION_7
bool
@@ -12,6 +16,7 @@ config GCC_VERSION_10
config GCC_VERSION
string
+ default "5.5.0" if GCC_VERSION_5
default "7.5.0" if GCC_VERSION_7
default "9.3.0" if GCC_VERSION_9
default "10.2.0" if GCC_VERSION_10
@@ -19,5 +24,5 @@ config GCC_VERSION
config GCC_USE_IREMAP
bool
- default y if GCC_USE_VERSION_7
+ default y if ( GCC_USE_VERSION_5 || GCC_USE_VERSION_7 )
default n
diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk
index 55fad1fcc4..d9372f9961 100644
--- a/toolchain/gcc/common.mk
+++ b/toolchain/gcc/common.mk
@@ -28,6 +28,10 @@ GCC_DIR:=$(PKG_NAME)-$(PKG_VERSION)
PKG_SOURCE_URL:=@GNU/gcc/gcc-$(PKG_VERSION)
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
+ifeq ($(PKG_VERSION),5.5.0)
+ PKG_HASH:=530cea139d82fe542b358961130c69cfde8b3d14556370b65823d2f91f0ced87
+endif
+
ifeq ($(PKG_VERSION),7.5.0)
PKG_HASH:=b81946e7f01f90528a1f7352ab08cc602b9ccc05d4e44da4bd501c5a189ee661
endif
diff --git a/toolchain/gcc/patches/5.5.0/001-revert_register_mode_search.patch b/toolchain/gcc/patches/5.5.0/001-revert_register_mode_search.patch
new file mode 100644
index 0000000000..06373eb6a0
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/001-revert_register_mode_search.patch
@@ -0,0 +1,65 @@
+Revert of:
+
+commit 275035b56823b26d5fb7e90fad945b998648edf2
+Author: bergner <bergner@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu Sep 5 14:09:07 2013 +0000
+
+ PR target/58139
+ * reginfo.c (choose_hard_reg_mode): Scan through all mode classes
+ looking for widest mode.
+
+
+ git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202286 138bc75d-0d04-0410-961f-82ee72b054a4
+
+
+--- a/gcc/reginfo.c
++++ b/gcc/reginfo.c
+@@ -665,35 +665,40 @@ choose_hard_reg_mode (unsigned int regno
+ mode = GET_MODE_WIDER_MODE (mode))
+ if ((unsigned) hard_regno_nregs[regno][mode] == nregs
+ && HARD_REGNO_MODE_OK (regno, mode)
+- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
+- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
+ found_mode = mode;
+
++ if (found_mode != VOIDmode)
++ return found_mode;
++
+ for (mode = GET_CLASS_NARROWEST_MODE (MODE_FLOAT);
+ mode != VOIDmode;
+ mode = GET_MODE_WIDER_MODE (mode))
+ if ((unsigned) hard_regno_nregs[regno][mode] == nregs
+ && HARD_REGNO_MODE_OK (regno, mode)
+- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
+- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
+ found_mode = mode;
+
++ if (found_mode != VOIDmode)
++ return found_mode;
++
+ for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_FLOAT);
+ mode != VOIDmode;
+ mode = GET_MODE_WIDER_MODE (mode))
+ if ((unsigned) hard_regno_nregs[regno][mode] == nregs
+ && HARD_REGNO_MODE_OK (regno, mode)
+- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
+- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
+ found_mode = mode;
+
++ if (found_mode != VOIDmode)
++ return found_mode;
++
+ for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_INT);
+ mode != VOIDmode;
+ mode = GET_MODE_WIDER_MODE (mode))
+ if ((unsigned) hard_regno_nregs[regno][mode] == nregs
+ && HARD_REGNO_MODE_OK (regno, mode)
+- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
+- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
+ found_mode = mode;
+
+ if (found_mode != VOIDmode)
diff --git a/toolchain/gcc/patches/5.5.0/002-case_insensitive.patch b/toolchain/gcc/patches/5.5.0/002-case_insensitive.patch
new file mode 100644
index 0000000000..b3d2dbe291
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/002-case_insensitive.patch
@@ -0,0 +1,14 @@
+--- a/include/filenames.h
++++ b/include/filenames.h
+@@ -43,11 +43,6 @@ extern "C" {
+ # define IS_DIR_SEPARATOR(c) IS_DOS_DIR_SEPARATOR (c)
+ # define IS_ABSOLUTE_PATH(f) IS_DOS_ABSOLUTE_PATH (f)
+ #else /* not DOSish */
+-# if defined(__APPLE__)
+-# ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
+-# define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
+-# endif
+-# endif /* __APPLE__ */
+ # define HAS_DRIVE_SPEC(f) (0)
+ # define IS_DIR_SEPARATOR(c) IS_UNIX_DIR_SEPARATOR (c)
+ # define IS_ABSOLUTE_PATH(f) IS_UNIX_ABSOLUTE_PATH (f)
diff --git a/toolchain/gcc/patches/5.5.0/010-documentation.patch b/toolchain/gcc/patches/5.5.0/010-documentation.patch
new file mode 100644
index 0000000000..d7166b24e7
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/010-documentation.patch
@@ -0,0 +1,23 @@
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -2943,18 +2943,10 @@ doc/gcc.info: $(TEXI_GCC_FILES)
+ doc/gccint.info: $(TEXI_GCCINT_FILES)
+ doc/cppinternals.info: $(TEXI_CPPINT_FILES)
+
+-doc/%.info: %.texi
+- if [ x$(BUILD_INFO) = xinfo ]; then \
+- $(MAKEINFO) $(MAKEINFOFLAGS) -I . -I $(gcc_docdir) \
+- -I $(gcc_docdir)/include -o $@ $<; \
+- fi
++doc/%.info:
+
+ # Duplicate entry to handle renaming of gccinstall.info
+-doc/gccinstall.info: $(TEXI_GCCINSTALL_FILES)
+- if [ x$(BUILD_INFO) = xinfo ]; then \
+- $(MAKEINFO) $(MAKEINFOFLAGS) -I $(gcc_docdir) \
+- -I $(gcc_docdir)/include -o $@ $<; \
+- fi
++doc/gccinstall.info:
+
+ doc/cpp.dvi: $(TEXI_CPP_FILES)
+ doc/gcc.dvi: $(TEXI_GCC_FILES)
diff --git a/toolchain/gcc/patches/5.5.0/020-no-plt-backport.patch b/toolchain/gcc/patches/5.5.0/020-no-plt-backport.patch
new file mode 100644
index 0000000000..b9702c9520
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/020-no-plt-backport.patch
@@ -0,0 +1,28 @@
+--- a/gcc/calls.c
++++ b/gcc/calls.c
+@@ -225,6 +225,12 @@ prepare_call_address (tree fndecl_or_typ
+ && targetm.small_register_classes_for_mode_p (FUNCTION_MODE))
+ ? force_not_mem (memory_address (FUNCTION_MODE, funexp))
+ : memory_address (FUNCTION_MODE, funexp));
++ else if (flag_pic && !flag_plt && fndecl_or_type
++ && TREE_CODE (fndecl_or_type) == FUNCTION_DECL
++ && !targetm.binds_local_p (fndecl_or_type))
++ {
++ funexp = force_reg (Pmode, funexp);
++ }
+ else if (! sibcallp)
+ {
+ #ifndef NO_FUNCTION_CSE
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -1779,6 +1779,10 @@ fpie
+ Common Report Var(flag_pie,1) Negative(fPIC)
+ Generate position-independent code for executables if possible (small mode)
+
++fplt
++Common Report Var(flag_plt) Init(1)
++Use PLT for PIC calls (-fno-plt: load the address from GOT at call site)
++
+ fplugin=
+ Common Joined RejectNegative Var(common_deferred_options) Defer
+ Specify a plugin to load
diff --git a/toolchain/gcc/patches/5.5.0/040-fix-mips-ICE-PR-68400.patch b/toolchain/gcc/patches/5.5.0/040-fix-mips-ICE-PR-68400.patch
new file mode 100644
index 0000000000..e88af34032
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/040-fix-mips-ICE-PR-68400.patch
@@ -0,0 +1,23 @@
+--- a/gcc/config/mips/mips.c
++++ b/gcc/config/mips/mips.c
+@@ -8001,9 +8001,17 @@ mask_low_and_shift_p (machine_mode mode,
+ bool
+ and_operands_ok (machine_mode mode, rtx op1, rtx op2)
+ {
+- return (memory_operand (op1, mode)
+- ? and_load_operand (op2, mode)
+- : and_reg_operand (op2, mode));
++ if (!memory_operand (op1, mode))
++ return and_reg_operand (op2, mode);
++
++ if (!and_load_operand (op2, mode))
++ return false;
++
++ if (!TARGET_MIPS16 || si_mask_operand(op2, mode))
++ return true;
++
++ op1 = XEXP (op1, 0);
++ return !(REG_P (op1) && REGNO (op1) == STACK_POINTER_REGNUM);
+ }
+
+ /* The canonical form of a mask-low-and-shift-left operation is
diff --git a/toolchain/gcc/patches/5.5.0/050-libitm-Don-t-redefine-__always_inline-in-local_atomi.patch b/toolchain/gcc/patches/5.5.0/050-libitm-Don-t-redefine-__always_inline-in-local_atomi.patch
new file mode 100644
index 0000000000..5ec93f5247
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/050-libitm-Don-t-redefine-__always_inline-in-local_atomi.patch
@@ -0,0 +1,1092 @@
+From 55f12fce4ccf77513644a247f9c401a5b1fa2402 Mon Sep 17 00:00:00 2001
+From: torvald <torvald@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu, 20 Aug 2015 17:55:24 +0000
+Subject: [PATCH] libitm: Don't redefine __always_inline in local_atomic.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227040 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+ libitm/ChangeLog | 6 +
+ libitm/local_atomic | 299 ++++++++++++++++++++++----------------------
+ 2 files changed, 155 insertions(+), 150 deletions(-)
+
+diff --git a/libitm/ChangeLog b/libitm/ChangeLog
+index 569d5bbbf14..6285c85fd44 100644
+--- a/libitm/ChangeLog
++++ b/libitm/ChangeLog
+@@ -1,3 +1,9 @@
++2015-08-20 Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org> (tiny change)
++
++ PR libitm/61164
++ * local_atomic (__always_inline): Rename to...
++ (__libitm_always_inline): ... this.
++
+ 2017-10-10 Release Manager
+
+ PR target/52482
+diff --git a/libitm/local_atomic b/libitm/local_atomic
+index 3119be40d09..e536275dc9f 100644
+--- a/libitm/local_atomic
++++ b/libitm/local_atomic
+@@ -41,8 +41,7 @@
+ #ifndef _GLIBCXX_ATOMIC
+ #define _GLIBCXX_ATOMIC 1
+
+-#undef __always_inline
+-#define __always_inline __attribute__((always_inline))
++#define __libitm_always_inline __attribute__((always_inline))
+
+ // #pragma GCC system_header
+
+@@ -74,7 +73,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ memory_order_seq_cst
+ } memory_order;
+
+- inline __always_inline memory_order
++ inline __libitm_always_inline memory_order
+ __calculate_memory_order(memory_order __m) noexcept
+ {
+ const bool __cond1 = __m == memory_order_release;
+@@ -84,13 +83,13 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __mo2;
+ }
+
+- inline __always_inline void
++ inline __libitm_always_inline void
+ atomic_thread_fence(memory_order __m) noexcept
+ {
+ __atomic_thread_fence (__m);
+ }
+
+- inline __always_inline void
++ inline __libitm_always_inline void
+ atomic_signal_fence(memory_order __m) noexcept
+ {
+ __atomic_thread_fence (__m);
+@@ -280,19 +279,19 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ // Conversion to ATOMIC_FLAG_INIT.
+ atomic_flag(bool __i) noexcept : __atomic_flag_base({ __i }) { }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ test_and_set(memory_order __m = memory_order_seq_cst) noexcept
+ {
+ return __atomic_test_and_set (&_M_i, __m);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ test_and_set(memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ return __atomic_test_and_set (&_M_i, __m);
+ }
+
+- __always_inline void
++ __libitm_always_inline void
+ clear(memory_order __m = memory_order_seq_cst) noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_consume);
+@@ -302,7 +301,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __atomic_clear (&_M_i, __m);
+ }
+
+- __always_inline void
++ __libitm_always_inline void
+ clear(memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_consume);
+@@ -455,7 +454,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ is_lock_free() const volatile noexcept
+ { return __atomic_is_lock_free (sizeof (_M_i), &_M_i); }
+
+- __always_inline void
++ __libitm_always_inline void
+ store(__int_type __i, memory_order __m = memory_order_seq_cst) noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_acquire);
+@@ -465,7 +464,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __atomic_store_n(&_M_i, __i, __m);
+ }
+
+- __always_inline void
++ __libitm_always_inline void
+ store(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+@@ -476,7 +475,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __atomic_store_n(&_M_i, __i, __m);
+ }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ load(memory_order __m = memory_order_seq_cst) const noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_release);
+@@ -485,7 +484,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __atomic_load_n(&_M_i, __m);
+ }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ load(memory_order __m = memory_order_seq_cst) const volatile noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_release);
+@@ -494,21 +493,21 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __atomic_load_n(&_M_i, __m);
+ }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ exchange(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+ return __atomic_exchange_n(&_M_i, __i, __m);
+ }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ exchange(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ return __atomic_exchange_n(&_M_i, __i, __m);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(__int_type& __i1, __int_type __i2,
+ memory_order __m1, memory_order __m2) noexcept
+ {
+@@ -519,7 +518,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 1, __m1, __m2);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(__int_type& __i1, __int_type __i2,
+ memory_order __m1,
+ memory_order __m2) volatile noexcept
+@@ -531,7 +530,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 1, __m1, __m2);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(__int_type& __i1, __int_type __i2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+@@ -539,7 +538,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __calculate_memory_order(__m));
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(__int_type& __i1, __int_type __i2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+@@ -547,7 +546,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __calculate_memory_order(__m));
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(__int_type& __i1, __int_type __i2,
+ memory_order __m1, memory_order __m2) noexcept
+ {
+@@ -558,7 +557,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 0, __m1, __m2);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(__int_type& __i1, __int_type __i2,
+ memory_order __m1,
+ memory_order __m2) volatile noexcept
+@@ -570,7 +569,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 0, __m1, __m2);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(__int_type& __i1, __int_type __i2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+@@ -578,7 +577,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __calculate_memory_order(__m));
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(__int_type& __i1, __int_type __i2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+@@ -586,52 +585,52 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __calculate_memory_order(__m));
+ }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ fetch_add(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_add(&_M_i, __i, __m); }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ fetch_add(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_add(&_M_i, __i, __m); }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ fetch_sub(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_sub(&_M_i, __i, __m); }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ fetch_sub(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_sub(&_M_i, __i, __m); }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ fetch_and(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_and(&_M_i, __i, __m); }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ fetch_and(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_and(&_M_i, __i, __m); }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ fetch_or(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_or(&_M_i, __i, __m); }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ fetch_or(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_or(&_M_i, __i, __m); }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ fetch_xor(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_xor(&_M_i, __i, __m); }
+
+- __always_inline __int_type
++ __libitm_always_inline __int_type
+ fetch_xor(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_xor(&_M_i, __i, __m); }
+@@ -733,7 +732,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ is_lock_free() const volatile noexcept
+ { return __atomic_is_lock_free (sizeof (_M_p), &_M_p); }
+
+- __always_inline void
++ __libitm_always_inline void
+ store(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+@@ -744,7 +743,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __atomic_store_n(&_M_p, __p, __m);
+ }
+
+- __always_inline void
++ __libitm_always_inline void
+ store(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+@@ -755,7 +754,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __atomic_store_n(&_M_p, __p, __m);
+ }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ load(memory_order __m = memory_order_seq_cst) const noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_release);
+@@ -764,7 +763,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __atomic_load_n(&_M_p, __m);
+ }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ load(memory_order __m = memory_order_seq_cst) const volatile noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_release);
+@@ -773,21 +772,21 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __atomic_load_n(&_M_p, __m);
+ }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ exchange(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+ return __atomic_exchange_n(&_M_p, __p, __m);
+ }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ exchange(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ return __atomic_exchange_n(&_M_p, __p, __m);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1,
+ memory_order __m2) noexcept
+@@ -799,7 +798,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __atomic_compare_exchange_n(&_M_p, &__p1, __p2, 0, __m1, __m2);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1,
+ memory_order __m2) volatile noexcept
+@@ -811,22 +810,22 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return __atomic_compare_exchange_n(&_M_p, &__p1, __p2, 0, __m1, __m2);
+ }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ fetch_add(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_add(&_M_p, __d, __m); }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ fetch_add(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_add(&_M_p, __d, __m); }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ fetch_sub(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_sub(&_M_p, __d, __m); }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ fetch_sub(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_sub(&_M_p, __d, __m); }
+@@ -870,67 +869,67 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ bool
+ is_lock_free() const volatile noexcept { return _M_base.is_lock_free(); }
+
+- __always_inline void
++ __libitm_always_inline void
+ store(bool __i, memory_order __m = memory_order_seq_cst) noexcept
+ { _M_base.store(__i, __m); }
+
+- __always_inline void
++ __libitm_always_inline void
+ store(bool __i, memory_order __m = memory_order_seq_cst) volatile noexcept
+ { _M_base.store(__i, __m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ load(memory_order __m = memory_order_seq_cst) const noexcept
+ { return _M_base.load(__m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ load(memory_order __m = memory_order_seq_cst) const volatile noexcept
+ { return _M_base.load(__m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ exchange(bool __i, memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_base.exchange(__i, __m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ exchange(bool __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_base.exchange(__i, __m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2) noexcept
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m1, __m2); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2) volatile noexcept
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m1, __m2); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2) noexcept
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m1, __m2); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2) volatile noexcept
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m1, __m2); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m); }
+@@ -980,11 +979,11 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ store(_Tp __i, memory_order _m = memory_order_seq_cst) noexcept
+ { __atomic_store(&_M_i, &__i, _m); }
+
+- __always_inline void
++ __libitm_always_inline void
+ store(_Tp __i, memory_order _m = memory_order_seq_cst) volatile noexcept
+ { __atomic_store(&_M_i, &__i, _m); }
+
+- __always_inline _Tp
++ __libitm_always_inline _Tp
+ load(memory_order _m = memory_order_seq_cst) const noexcept
+ {
+ _Tp tmp;
+@@ -992,7 +991,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return tmp;
+ }
+
+- __always_inline _Tp
++ __libitm_always_inline _Tp
+ load(memory_order _m = memory_order_seq_cst) const volatile noexcept
+ {
+ _Tp tmp;
+@@ -1000,7 +999,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return tmp;
+ }
+
+- __always_inline _Tp
++ __libitm_always_inline _Tp
+ exchange(_Tp __i, memory_order _m = memory_order_seq_cst) noexcept
+ {
+ _Tp tmp;
+@@ -1008,7 +1007,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return tmp;
+ }
+
+- __always_inline _Tp
++ __libitm_always_inline _Tp
+ exchange(_Tp __i,
+ memory_order _m = memory_order_seq_cst) volatile noexcept
+ {
+@@ -1017,50 +1016,50 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ return tmp;
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(_Tp& __e, _Tp __i, memory_order __s,
+ memory_order __f) noexcept
+ {
+ return __atomic_compare_exchange(&_M_i, &__e, &__i, true, __s, __f);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(_Tp& __e, _Tp __i, memory_order __s,
+ memory_order __f) volatile noexcept
+ {
+ return __atomic_compare_exchange(&_M_i, &__e, &__i, true, __s, __f);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(_Tp& __e, _Tp __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return compare_exchange_weak(__e, __i, __m, __m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(_Tp& __e, _Tp __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return compare_exchange_weak(__e, __i, __m, __m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(_Tp& __e, _Tp __i, memory_order __s,
+ memory_order __f) noexcept
+ {
+ return __atomic_compare_exchange(&_M_i, &__e, &__i, false, __s, __f);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(_Tp& __e, _Tp __i, memory_order __s,
+ memory_order __f) volatile noexcept
+ {
+ return __atomic_compare_exchange(&_M_i, &__e, &__i, false, __s, __f);
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(_Tp& __e, _Tp __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return compare_exchange_strong(__e, __i, __m, __m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(_Tp& __e, _Tp __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return compare_exchange_strong(__e, __i, __m, __m); }
+@@ -1153,46 +1152,46 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ is_lock_free() const volatile noexcept
+ { return _M_b.is_lock_free(); }
+
+- __always_inline void
++ __libitm_always_inline void
+ store(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_b.store(__p, __m); }
+
+- __always_inline void
++ __libitm_always_inline void
+ store(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_b.store(__p, __m); }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ load(memory_order __m = memory_order_seq_cst) const noexcept
+ { return _M_b.load(__m); }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ load(memory_order __m = memory_order_seq_cst) const volatile noexcept
+ { return _M_b.load(__m); }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ exchange(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_b.exchange(__p, __m); }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ exchange(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_b.exchange(__p, __m); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1, memory_order __m2) noexcept
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1,
+ memory_order __m2) volatile noexcept
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+@@ -1200,7 +1199,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __calculate_memory_order(__m));
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+@@ -1208,18 +1207,18 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __calculate_memory_order(__m));
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1, memory_order __m2) noexcept
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1,
+ memory_order __m2) volatile noexcept
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+@@ -1227,7 +1226,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __calculate_memory_order(__m));
+ }
+
+- __always_inline bool
++ __libitm_always_inline bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+@@ -1235,22 +1234,22 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ __calculate_memory_order(__m));
+ }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ fetch_add(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_b.fetch_add(__d, __m); }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ fetch_add(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_b.fetch_add(__d, __m); }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ fetch_sub(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_b.fetch_sub(__d, __m); }
+
+- __always_inline __pointer_type
++ __libitm_always_inline __pointer_type
+ fetch_sub(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_b.fetch_sub(__d, __m); }
+@@ -1544,98 +1543,98 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+
+
+ // Function definitions, atomic_flag operations.
+- inline __always_inline bool
++ inline __libitm_always_inline bool
+ atomic_flag_test_and_set_explicit(atomic_flag* __a,
+ memory_order __m) noexcept
+ { return __a->test_and_set(__m); }
+
+- inline __always_inline bool
++ inline __libitm_always_inline bool
+ atomic_flag_test_and_set_explicit(volatile atomic_flag* __a,
+ memory_order __m) noexcept
+ { return __a->test_and_set(__m); }
+
+- inline __always_inline void
++ inline __libitm_always_inline void
+ atomic_flag_clear_explicit(atomic_flag* __a, memory_order __m) noexcept
+ { __a->clear(__m); }
+
+- inline __always_inline void
++ inline __libitm_always_inline void
+ atomic_flag_clear_explicit(volatile atomic_flag* __a,
+ memory_order __m) noexcept
+ { __a->clear(__m); }
+
+- inline __always_inline bool
++ inline __libitm_always_inline bool
+ atomic_flag_test_and_set(atomic_flag* __a) noexcept
+ { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); }
+
+- inline __always_inline bool
++ inline __libitm_always_inline bool
+ atomic_flag_test_and_set(volatile atomic_flag* __a) noexcept
+ { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); }
+
+- inline __always_inline void
++ inline __libitm_always_inline void
+ atomic_flag_clear(atomic_flag* __a) noexcept
+ { atomic_flag_clear_explicit(__a, memory_order_seq_cst); }
+
+- inline __always_inline void
++ inline __libitm_always_inline void
+ atomic_flag_clear(volatile atomic_flag* __a) noexcept
+ { atomic_flag_clear_explicit(__a, memory_order_seq_cst); }
+
+
+ // Function templates generally applicable to atomic types.
+ template<typename _ITp>
+- __always_inline bool
++ __libitm_always_inline bool
+ atomic_is_lock_free(const atomic<_ITp>* __a) noexcept
+ { return __a->is_lock_free(); }
+
+ template<typename _ITp>
+- __always_inline bool
++ __libitm_always_inline bool
+ atomic_is_lock_free(const volatile atomic<_ITp>* __a) noexcept
+ { return __a->is_lock_free(); }
+
+ template<typename _ITp>
+- __always_inline void
++ __libitm_always_inline void
+ atomic_init(atomic<_ITp>* __a, _ITp __i) noexcept;
+
+ template<typename _ITp>
+- __always_inline void
++ __libitm_always_inline void
+ atomic_init(volatile atomic<_ITp>* __a, _ITp __i) noexcept;
+
+ template<typename _ITp>
+- __always_inline void
++ __libitm_always_inline void
+ atomic_store_explicit(atomic<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { __a->store(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline void
++ __libitm_always_inline void
+ atomic_store_explicit(volatile atomic<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { __a->store(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_load_explicit(const atomic<_ITp>* __a, memory_order __m) noexcept
+ { return __a->load(__m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_load_explicit(const volatile atomic<_ITp>* __a,
+ memory_order __m) noexcept
+ { return __a->load(__m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_exchange_explicit(atomic<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->exchange(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_exchange_explicit(volatile atomic<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->exchange(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline bool
++ __libitm_always_inline bool
+ atomic_compare_exchange_weak_explicit(atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2,
+ memory_order __m1,
+@@ -1643,7 +1642,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ { return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); }
+
+ template<typename _ITp>
+- __always_inline bool
++ __libitm_always_inline bool
+ atomic_compare_exchange_weak_explicit(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2,
+ memory_order __m1,
+@@ -1651,7 +1650,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ { return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); }
+
+ template<typename _ITp>
+- __always_inline bool
++ __libitm_always_inline bool
+ atomic_compare_exchange_strong_explicit(atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2,
+ memory_order __m1,
+@@ -1659,7 +1658,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ { return __a->compare_exchange_strong(*__i1, __i2, __m1, __m2); }
+
+ template<typename _ITp>
+- __always_inline bool
++ __libitm_always_inline bool
+ atomic_compare_exchange_strong_explicit(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2,
+ memory_order __m1,
+@@ -1668,37 +1667,37 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+
+
+ template<typename _ITp>
+- __always_inline void
++ __libitm_always_inline void
+ atomic_store(atomic<_ITp>* __a, _ITp __i) noexcept
+ { atomic_store_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline void
++ __libitm_always_inline void
+ atomic_store(volatile atomic<_ITp>* __a, _ITp __i) noexcept
+ { atomic_store_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_load(const atomic<_ITp>* __a) noexcept
+ { return atomic_load_explicit(__a, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_load(const volatile atomic<_ITp>* __a) noexcept
+ { return atomic_load_explicit(__a, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_exchange(atomic<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_exchange_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_exchange(volatile atomic<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_exchange_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline bool
++ __libitm_always_inline bool
+ atomic_compare_exchange_weak(atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2) noexcept
+ {
+@@ -1708,7 +1707,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ }
+
+ template<typename _ITp>
+- __always_inline bool
++ __libitm_always_inline bool
+ atomic_compare_exchange_weak(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2) noexcept
+ {
+@@ -1718,7 +1717,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ }
+
+ template<typename _ITp>
+- __always_inline bool
++ __libitm_always_inline bool
+ atomic_compare_exchange_strong(atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2) noexcept
+ {
+@@ -1728,7 +1727,7 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ }
+
+ template<typename _ITp>
+- __always_inline bool
++ __libitm_always_inline bool
+ atomic_compare_exchange_strong(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2) noexcept
+ {
+@@ -1742,158 +1741,158 @@ namespace std // _GLIBCXX_VISIBILITY(default)
+ // intergral types as specified in the standard, excluding address
+ // types.
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_add_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_add(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_add_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_add(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_sub_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_sub(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_sub_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_sub(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_and_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_and(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_and_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_and(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_or_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_or(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_or_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_or(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_xor_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_xor(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_xor_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_xor(__i, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_add(__atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_add_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_add(volatile __atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_add_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_sub(__atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_sub_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_sub(volatile __atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_sub_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_and(__atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_and_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_and(volatile __atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_and_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_or(__atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_or_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_or(volatile __atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_or_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_xor(__atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_xor_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+- __always_inline _ITp
++ __libitm_always_inline _ITp
+ atomic_fetch_xor(volatile __atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_xor_explicit(__a, __i, memory_order_seq_cst); }
+
+
+ // Partial specializations for pointers.
+ template<typename _ITp>
+- __always_inline _ITp*
++ __libitm_always_inline _ITp*
+ atomic_fetch_add_explicit(atomic<_ITp*>* __a, ptrdiff_t __d,
+ memory_order __m) noexcept
+ { return __a->fetch_add(__d, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp*
++ __libitm_always_inline _ITp*
+ atomic_fetch_add_explicit(volatile atomic<_ITp*>* __a, ptrdiff_t __d,
+ memory_order __m) noexcept
+ { return __a->fetch_add(__d, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp*
++ __libitm_always_inline _ITp*
+ atomic_fetch_add(volatile atomic<_ITp*>* __a, ptrdiff_t __d) noexcept
+ { return __a->fetch_add(__d); }
+
+ template<typename _ITp>
+- __always_inline _ITp*
++ __libitm_always_inline _ITp*
+ atomic_fetch_add(atomic<_ITp*>* __a, ptrdiff_t __d) noexcept
+ { return __a->fetch_add(__d); }
+
+ template<typename _ITp>
+- __always_inline _ITp*
++ __libitm_always_inline _ITp*
+ atomic_fetch_sub_explicit(volatile atomic<_ITp*>* __a,
+ ptrdiff_t __d, memory_order __m) noexcept
+ { return __a->fetch_sub(__d, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp*
++ __libitm_always_inline _ITp*
+ atomic_fetch_sub_explicit(atomic<_ITp*>* __a, ptrdiff_t __d,
+ memory_order __m) noexcept
+ { return __a->fetch_sub(__d, __m); }
+
+ template<typename _ITp>
+- __always_inline _ITp*
++ __libitm_always_inline _ITp*
+ atomic_fetch_sub(volatile atomic<_ITp*>* __a, ptrdiff_t __d) noexcept
+ { return __a->fetch_sub(__d); }
+
+ template<typename _ITp>
+- __always_inline _ITp*
++ __libitm_always_inline _ITp*
+ atomic_fetch_sub(atomic<_ITp*>* __a, ptrdiff_t __d) noexcept
+ { return __a->fetch_sub(__d); }
+ // @} group atomics
+--
+2.19.2
+
diff --git a/toolchain/gcc/patches/5.5.0/200-musl_config.patch b/toolchain/gcc/patches/5.5.0/200-musl_config.patch
new file mode 100644
index 0000000000..178c25ce34
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/200-musl_config.patch
@@ -0,0 +1,309 @@
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 8 May 2015 08:25:47 +0000 (+0000)
+Subject: [PATCH 2/13] musl libc config
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=a9173ceabaf29c16f8ef226fbf98af373a4b2ceb
+
+[PATCH 2/13] musl libc config
+
+2015-05-08 Gregor Richards <gregor.richards@uwaterloo.ca>
+ Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * config.gcc (LIBC_MUSL): New tm_defines macro.
+ * config/linux.h (OPTION_MUSL): Define.
+ (MUSL_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER32,)
+ (MUSL_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKERX32,)
+ (INCLUDE_DEFAULTS_MUSL_GPP, INCLUDE_DEFAULTS_MUSL_LOCAL,)
+ (INCLUDE_DEFAULTS_MUSL_PREFIX, INCLUDE_DEFAULTS_MUSL_CROSS,)
+ (INCLUDE_DEFAULTS_MUSL_TOOL, INCLUDE_DEFAULTS_MUSL_NATIVE): Define.
+ * config/linux.opt (mmusl): New option.
+ * doc/invoke.texi (GNU/Linux Options): Document -mmusl.
+ * configure.ac (gcc_cv_libc_provides_ssp): Add *-*-musl*.
+ (gcc_cv_target_dl_iterate_phdr): Add *-linux-musl*.
+ * configure: Regenerate.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222904 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -575,7 +575,7 @@ case ${target} in
+ esac
+
+ # Common C libraries.
+-tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3"
++tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4"
+
+ # 32-bit x86 processors supported by --with-arch=. Each processor
+ # MUST be separated by exactly one space.
+@@ -720,6 +720,9 @@ case ${target} in
+ *-*-*uclibc*)
+ tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC"
+ ;;
++ *-*-*musl*)
++ tm_defines="$tm_defines DEFAULT_LIBC=LIBC_MUSL"
++ ;;
+ *)
+ tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
+ ;;
+--- a/gcc/config/linux.h
++++ b/gcc/config/linux.h
+@@ -32,10 +32,12 @@ see the files COPYING3 and COPYING.RUNTI
+ #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC)
+ #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
+ #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
++#define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL)
+ #else
+ #define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
+ #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
+ #define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
++#define OPTION_MUSL (linux_libc == LIBC_MUSL)
+ #endif
+
+ #define GNU_USER_TARGET_OS_CPP_BUILTINS() \
+@@ -50,21 +52,25 @@ see the files COPYING3 and COPYING.RUNTI
+ } while (0)
+
+ /* Determine which dynamic linker to use depending on whether GLIBC or
+- uClibc or Bionic is the default C library and whether
+- -muclibc or -mglibc or -mbionic has been passed to change the default. */
++ uClibc or Bionic or musl is the default C library and whether
++ -muclibc or -mglibc or -mbionic or -mmusl has been passed to change
++ the default. */
+
+-#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LD1, LD2, LD3) \
+- "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:" LD1 "}}"
++#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LIBC4, LD1, LD2, LD3, LD4) \
++ "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:%{" LIBC4 ":" LD4 ";:" LD1 "}}}"
+
+ #if DEFAULT_LIBC == LIBC_GLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
+- CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", G, U, B)
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++ CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", "mmusl", G, U, B, M)
+ #elif DEFAULT_LIBC == LIBC_UCLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
+- CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", U, G, B)
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++ CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", "mmusl", U, G, B, M)
+ #elif DEFAULT_LIBC == LIBC_BIONIC
+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
+- CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", B, G, U)
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++ CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", "mmusl", B, G, U, M)
++#elif DEFAULT_LIBC == LIBC_MUSL
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++ CHOOSE_DYNAMIC_LINKER1 ("mmusl", "mglibc", "muclibc", "mbionic", M, G, U, B)
+ #else
+ #error "Unsupported DEFAULT_LIBC"
+ #endif /* DEFAULT_LIBC */
+@@ -81,24 +87,100 @@ see the files COPYING3 and COPYING.RUNTI
+ #define BIONIC_DYNAMIC_LINKER32 "/system/bin/linker"
+ #define BIONIC_DYNAMIC_LINKER64 "/system/bin/linker64"
+ #define BIONIC_DYNAMIC_LINKERX32 "/system/bin/linkerx32"
++/* Should be redefined for each target that supports musl. */
++#define MUSL_DYNAMIC_LINKER "/dev/null"
++#define MUSL_DYNAMIC_LINKER32 "/dev/null"
++#define MUSL_DYNAMIC_LINKER64 "/dev/null"
++#define MUSL_DYNAMIC_LINKERX32 "/dev/null"
+
+ #define GNU_USER_DYNAMIC_LINKER \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, \
+- BIONIC_DYNAMIC_LINKER)
++ BIONIC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
+ #define GNU_USER_DYNAMIC_LINKER32 \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, \
+- BIONIC_DYNAMIC_LINKER32)
++ BIONIC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
+ #define GNU_USER_DYNAMIC_LINKER64 \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, \
+- BIONIC_DYNAMIC_LINKER64)
++ BIONIC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
+ #define GNU_USER_DYNAMIC_LINKERX32 \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERX32, UCLIBC_DYNAMIC_LINKERX32, \
+- BIONIC_DYNAMIC_LINKERX32)
++ BIONIC_DYNAMIC_LINKERX32, MUSL_DYNAMIC_LINKERX32)
+
+ /* Whether we have Bionic libc runtime */
+ #undef TARGET_HAS_BIONIC
+ #define TARGET_HAS_BIONIC (OPTION_BIONIC)
+
++/* musl avoids problematic includes by rearranging the include directories.
++ * Unfortunately, this is mostly duplicated from cppdefault.c */
++#if DEFAULT_LIBC == LIBC_MUSL
++#define INCLUDE_DEFAULTS_MUSL_GPP \
++ { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, \
++ GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, \
++ { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, \
++ GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 }, \
++ { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, \
++ GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
++
++#ifdef LOCAL_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_LOCAL \
++ { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 }, \
++ { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
++#else
++#define INCLUDE_DEFAULTS_MUSL_LOCAL
++#endif
++
++#ifdef PREFIX_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_PREFIX \
++ { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0},
++#else
++#define INCLUDE_DEFAULTS_MUSL_PREFIX
++#endif
++
++#ifdef CROSS_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_CROSS \
++ { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0},
++#else
++#define INCLUDE_DEFAULTS_MUSL_CROSS
++#endif
++
++#ifdef TOOL_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_TOOL \
++ { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0},
++#else
++#define INCLUDE_DEFAULTS_MUSL_TOOL
++#endif
++
++#ifdef NATIVE_SYSTEM_HEADER_DIR
++#define INCLUDE_DEFAULTS_MUSL_NATIVE \
++ { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 }, \
++ { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
++#else
++#define INCLUDE_DEFAULTS_MUSL_NATIVE
++#endif
++
++#if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
++# undef INCLUDE_DEFAULTS_MUSL_LOCAL
++# define INCLUDE_DEFAULTS_MUSL_LOCAL
++# undef INCLUDE_DEFAULTS_MUSL_NATIVE
++# define INCLUDE_DEFAULTS_MUSL_NATIVE
++#else
++# undef INCLUDE_DEFAULTS_MUSL_CROSS
++# define INCLUDE_DEFAULTS_MUSL_CROSS
++#endif
++
++#undef INCLUDE_DEFAULTS
++#define INCLUDE_DEFAULTS \
++ { \
++ INCLUDE_DEFAULTS_MUSL_GPP \
++ INCLUDE_DEFAULTS_MUSL_PREFIX \
++ INCLUDE_DEFAULTS_MUSL_CROSS \
++ INCLUDE_DEFAULTS_MUSL_TOOL \
++ INCLUDE_DEFAULTS_MUSL_NATIVE \
++ { GCC_INCLUDE_DIR, "GCC", 0, 1, 0, 0 }, \
++ { 0, 0, 0, 0, 0, 0 } \
++ }
++#endif
++
+ #if (DEFAULT_LIBC == LIBC_UCLIBC) && defined (SINGLE_LIBC) /* uClinux */
+ /* This is a *uclinux* target. We don't define below macros to normal linux
+ versions, because doing so would require *uclinux* targets to include
+--- a/gcc/config/linux.opt
++++ b/gcc/config/linux.opt
+@@ -28,5 +28,9 @@ Target Report RejectNegative Var(linux_l
+ Use GNU C library
+
+ muclibc
+-Target Report RejectNegative Var(linux_libc,LIBC_UCLIBC) Negative(mbionic)
++Target Report RejectNegative Var(linux_libc,LIBC_UCLIBC) Negative(mmusl)
+ Use uClibc C library
++
++mmusl
++Target Report RejectNegative Var(linux_libc,LIBC_MUSL) Negative(mbionic)
++Use musl C library
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -27833,6 +27833,9 @@ if test "${gcc_cv_libc_provides_ssp+set}
+ else
+ gcc_cv_libc_provides_ssp=no
+ case "$target" in
++ *-*-musl*)
++ # All versions of musl provide stack protector
++ gcc_cv_libc_provides_ssp=yes;;
+ *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
+ # glibc 2.4 and later provides __stack_chk_fail and
+ # either __stack_chk_guard, or TLS access to stack guard canary.
+@@ -27865,6 +27868,7 @@ fi
+ # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
+ # simply assert that glibc does provide this, which is true for all
+ # realistically usable GNU/Hurd configurations.
++ # All supported versions of musl provide it as well
+ gcc_cv_libc_provides_ssp=yes;;
+ *-*-darwin* | *-*-freebsd*)
+ ac_fn_c_check_func "$LINENO" "__stack_chk_fail" "ac_cv_func___stack_chk_fail"
+@@ -27961,6 +27965,9 @@ case "$target" in
+ gcc_cv_target_dl_iterate_phdr=no
+ fi
+ ;;
++ *-linux-musl*)
++ gcc_cv_target_dl_iterate_phdr=yes
++ ;;
+ esac
+
+ if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -5287,6 +5287,9 @@ AC_CACHE_CHECK(__stack_chk_fail in targe
+ gcc_cv_libc_provides_ssp,
+ [gcc_cv_libc_provides_ssp=no
+ case "$target" in
++ *-*-musl*)
++ # All versions of musl provide stack protector
++ gcc_cv_libc_provides_ssp=yes;;
+ *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
+ # glibc 2.4 and later provides __stack_chk_fail and
+ # either __stack_chk_guard, or TLS access to stack guard canary.
+@@ -5313,6 +5316,7 @@ AC_CACHE_CHECK(__stack_chk_fail in targe
+ # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
+ # simply assert that glibc does provide this, which is true for all
+ # realistically usable GNU/Hurd configurations.
++ # All supported versions of musl provide it as well
+ gcc_cv_libc_provides_ssp=yes;;
+ *-*-darwin* | *-*-freebsd*)
+ AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
+@@ -5386,6 +5390,9 @@ case "$target" in
+ gcc_cv_target_dl_iterate_phdr=no
+ fi
+ ;;
++ *-linux-musl*)
++ gcc_cv_target_dl_iterate_phdr=yes
++ ;;
+ esac
+ GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
+ if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -668,7 +668,7 @@ Objective-C and Objective-C++ Dialects}.
+ -mcpu=@var{cpu}}
+
+ @emph{GNU/Linux Options}
+-@gccoptlist{-mglibc -muclibc -mbionic -mandroid @gol
++@gccoptlist{-mglibc -muclibc -mmusl -mbionic -mandroid @gol
+ -tno-android-cc -tno-android-ld}
+
+ @emph{H8/300 Options}
+@@ -15351,13 +15351,19 @@ These @samp{-m} options are defined for
+ @item -mglibc
+ @opindex mglibc
+ Use the GNU C library. This is the default except
+-on @samp{*-*-linux-*uclibc*} and @samp{*-*-linux-*android*} targets.
++on @samp{*-*-linux-*uclibc*}, @samp{*-*-linux-*musl*} and
++@samp{*-*-linux-*android*} targets.
+
+ @item -muclibc
+ @opindex muclibc
+ Use uClibc C library. This is the default on
+ @samp{*-*-linux-*uclibc*} targets.
+
++@item -mmusl
++@opindex mmusl
++Use the musl C library. This is the default on
++@samp{*-*-linux-*musl*} targets.
++
+ @item -mbionic
+ @opindex mbionic
+ Use Bionic C library. This is the default on
diff --git a/toolchain/gcc/patches/5.5.0/201-musl_arm.patch b/toolchain/gcc/patches/5.5.0/201-musl_arm.patch
new file mode 100644
index 0000000000..27a26afc05
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/201-musl_arm.patch
@@ -0,0 +1,43 @@
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Wed, 27 May 2015 13:17:11 +0000 (+0000)
+Subject: [PATCH 4/13] arm musl support
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=de799bd087ab9a179768fea75bd195a31d3432a4
+
+[PATCH 4/13] arm musl support
+
+On behalf of szabolcs.nagy@arm.com
+
+2015-05-27 Gregor Richards <gregor.richards@uwaterloo.ca>
+
+ * config/arm/linux-eabi.h (MUSL_DYNAMIC_LINKER): Define.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223749 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -77,6 +77,23 @@
+ %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
+ %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
+
++/* For ARM musl currently supports four dynamic linkers:
++ - ld-musl-arm.so.1 - for the EABI-derived soft-float ABI
++ - ld-musl-armhf.so.1 - for the EABI-derived hard-float ABI
++ - ld-musl-armeb.so.1 - for the EABI-derived soft-float ABI, EB
++ - ld-musl-armebhf.so.1 - for the EABI-derived hard-float ABI, EB
++ musl does not support the legacy OABI mode.
++ All the dynamic linkers live in /lib.
++ We default to soft-float, EL. */
++#undef MUSL_DYNAMIC_LINKER
++#if TARGET_BIG_ENDIAN_DEFAULT
++#define MUSL_DYNAMIC_LINKER_E "%{mlittle-endian:;:eb}"
++#else
++#define MUSL_DYNAMIC_LINKER_E "%{mbig-endian:eb}"
++#endif
++#define MUSL_DYNAMIC_LINKER \
++ "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
++
+ /* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
+ use the GNU/Linux version, not the generic BPABI version. */
+ #undef LINK_SPEC
diff --git a/toolchain/gcc/patches/5.5.0/202-musl_mips.patch b/toolchain/gcc/patches/5.5.0/202-musl_mips.patch
new file mode 100644
index 0000000000..816dd8d101
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/202-musl_mips.patch
@@ -0,0 +1,35 @@
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 8 May 2015 15:16:50 +0000 (+0000)
+Subject: [PATCH 6/13] mips musl support
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=2550b6a866c887472b587bef87d433c51cf1ebc8
+
+[PATCH 6/13] mips musl support
+
+2015-05-08 Gregor Richards <gregor.richards@uwaterloo.ca>
+ Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * config/mips/linux.h (MUSL_DYNAMIC_LINKER32): Define.
+ (MUSL_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKERN32): Define.
+ (GNU_USER_DYNAMIC_LINKERN32): Update.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222915 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+--- a/gcc/config/mips/linux.h
++++ b/gcc/config/mips/linux.h
+@@ -37,7 +37,13 @@ along with GCC; see the file COPYING3.
+ #define UCLIBC_DYNAMIC_LINKERN32 \
+ "%{mnan=2008:/lib32/ld-uClibc-mipsn8.so.0;:/lib32/ld-uClibc.so.0}"
+
++#undef MUSL_DYNAMIC_LINKER32
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-mips%{EL:el}%{msoft-float:-sf}.so.1"
++#undef MUSL_DYNAMIC_LINKER64
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-mips64%{EL:el}%{msoft-float:-sf}.so.1"
++#define MUSL_DYNAMIC_LINKERN32 "/lib/ld-musl-mipsn32%{EL:el}%{msoft-float:-sf}.so.1"
++
+ #define BIONIC_DYNAMIC_LINKERN32 "/system/bin/linker32"
+ #define GNU_USER_DYNAMIC_LINKERN32 \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32, \
+- BIONIC_DYNAMIC_LINKERN32)
++ BIONIC_DYNAMIC_LINKERN32, MUSL_DYNAMIC_LINKERN32)
diff --git a/toolchain/gcc/patches/5.5.0/203-musl_powerpc.patch b/toolchain/gcc/patches/5.5.0/203-musl_powerpc.patch
new file mode 100644
index 0000000000..073c834ce1
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/203-musl_powerpc.patch
@@ -0,0 +1,209 @@
+
+gcc/Changelog:
+
+2015-04-24 Gregor Richards <gregor.richards@uwaterloo.ca>
+ Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * config.gcc (secure_plt): Add *-linux*-musl*.
+ * config/rs6000/linux64.h (MUSL_DYNAMIC_LINKER32): Define.
+ (MUSL_DYNAMIC_LINKER64): Define.
+ (GNU_USER_DYNAMIC_LINKER32): Update.
+ (GNU_USER_DYNAMIC_LINKER64): Update.
+ (CHOOSE_DYNAMIC_LINKER): Update.
+
+ * config/rs6000/secureplt.h (LINK_SECURE_PLT_DEFAULT_SPEC): Define.
+ * config/rs6000/sysv4.h (GNU_USER_DYNAMIC_LINKER): Update.
+ (MUSL_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER_E,)
+ (INCLUDE_DEFAULTS_MUSL_GPP, INCLUDE_DEFAULTS_MUSL_LOCAL,)
+ (INCLUDE_DEFAULTS_MUSL_PREFIX, INCLUDE_DEFAULTS_MUSL_CROSS,)
+ (INCLUDE_DEFAULTS_MUSL_TOOL, INCLUDE_DEFAULTS_MUSL_NATIVE): Define.
+ (LINK_SECURE_PLT_DEFAULT_SPEC): Define.
+ (CHOOSE_DYNAMIC_LINKER, LINK_TARGET_SPEC, LINK_OS_LINUX_SPEC): Update.
+
+ * config/rs6000/sysv4le.h (MUSL_DYNAMIC_LINKER_E): Define.
+
+--- a/gcc/config/rs6000/linux64.h
++++ b/gcc/config/rs6000/linux64.h
+@@ -365,17 +365,21 @@ extern int dot_symbols;
+ #endif
+ #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
+ #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E ".so.1"
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-powerpc64" MUSL_DYNAMIC_LINKER_E ".so.1"
+ #if DEFAULT_LIBC == LIBC_UCLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
+ #elif DEFAULT_LIBC == LIBC_GLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}"
++#elif DEFAULT_LIBC == LIBC_MUSL
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}"
+ #else
+ #error "Unsupported DEFAULT_LIBC"
+ #endif
+ #define GNU_USER_DYNAMIC_LINKER32 \
+- CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32)
++ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
+ #define GNU_USER_DYNAMIC_LINKER64 \
+- CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64)
++ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
+
+ #undef DEFAULT_ASM_ENDIAN
+ #if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN)
+--- a/gcc/config/rs6000/secureplt.h
++++ b/gcc/config/rs6000/secureplt.h
+@@ -18,3 +18,4 @@ along with GCC; see the file COPYING3.
+ <http://www.gnu.org/licenses/>. */
+
+ #define CC1_SECURE_PLT_DEFAULT_SPEC "-msecure-plt"
++#define LINK_SECURE_PLT_DEFAULT_SPEC "--secure-plt"
+--- a/gcc/config/rs6000/sysv4.h
++++ b/gcc/config/rs6000/sysv4.h
+@@ -537,6 +537,9 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF
+ #ifndef CC1_SECURE_PLT_DEFAULT_SPEC
+ #define CC1_SECURE_PLT_DEFAULT_SPEC ""
+ #endif
++#ifndef LINK_SECURE_PLT_DEFAULT_SPEC
++#define LINK_SECURE_PLT_DEFAULT_SPEC ""
++#endif
+
+ /* Pass -G xxx to the compiler. */
+ #undef CC1_SPEC
+@@ -574,7 +577,8 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF
+ %{R*} \
+ %(link_shlib) \
+ %{!T*: %(link_start) } \
+-%(link_os)"
++%(link_os)" \
++"%{!mbss-plt: %{!msecure-plt: %(link_secure_plt_default)}}"
+
+ /* Shared libraries are not default. */
+ #define LINK_SHLIB_SPEC "\
+@@ -757,17 +761,22 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF
+
+ #define LINK_START_LINUX_SPEC ""
+
++#define MUSL_DYNAMIC_LINKER_E ENDIAN_SELECT("","le","")
++
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+ #define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E ".so.1"
+ #if DEFAULT_LIBC == LIBC_UCLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
++#elif DEFAULT_LIBC == LIBC_MUSL
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}"
+ #elif !defined (DEFAULT_LIBC) || DEFAULT_LIBC == LIBC_GLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}"
+ #else
+ #error "Unsupported DEFAULT_LIBC"
+ #endif
+ #define GNU_USER_DYNAMIC_LINKER \
+- CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER)
++ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
+
+ #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
+ %{rdynamic:-export-dynamic} \
+@@ -889,6 +898,7 @@ ncrtn.o%s"
+ { "link_os_openbsd", LINK_OS_OPENBSD_SPEC }, \
+ { "link_os_default", LINK_OS_DEFAULT_SPEC }, \
+ { "cc1_secure_plt_default", CC1_SECURE_PLT_DEFAULT_SPEC }, \
++ { "link_secure_plt_default", LINK_SECURE_PLT_DEFAULT_SPEC }, \
+ { "cpp_os_ads", CPP_OS_ADS_SPEC }, \
+ { "cpp_os_yellowknife", CPP_OS_YELLOWKNIFE_SPEC }, \
+ { "cpp_os_mvme", CPP_OS_MVME_SPEC }, \
+@@ -943,3 +953,72 @@ ncrtn.o%s"
+ /* This target uses the sysv4.opt file. */
+ #define TARGET_USES_SYSV4_OPT 1
+
++/* Include order changes for musl, same as in generic linux.h. */
++#if DEFAULT_LIBC == LIBC_MUSL
++#define INCLUDE_DEFAULTS_MUSL_GPP \
++ { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, \
++ GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, \
++ { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, \
++ GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 }, \
++ { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, \
++ GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
++
++#ifdef LOCAL_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_LOCAL \
++ { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 }, \
++ { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
++#else
++#define INCLUDE_DEFAULTS_MUSL_LOCAL
++#endif
++
++#ifdef PREFIX_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_PREFIX \
++ { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0},
++#else
++#define INCLUDE_DEFAULTS_MUSL_PREFIX
++#endif
++
++#ifdef CROSS_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_CROSS \
++ { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0},
++#else
++#define INCLUDE_DEFAULTS_MUSL_CROSS
++#endif
++
++#ifdef TOOL_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_TOOL \
++ { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0},
++#else
++#define INCLUDE_DEFAULTS_MUSL_TOOL
++#endif
++
++#ifdef NATIVE_SYSTEM_HEADER_DIR
++#define INCLUDE_DEFAULTS_MUSL_NATIVE \
++ { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 }, \
++ { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
++#else
++#define INCLUDE_DEFAULTS_MUSL_NATIVE
++#endif
++
++#if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
++# undef INCLUDE_DEFAULTS_MUSL_LOCAL
++# define INCLUDE_DEFAULTS_MUSL_LOCAL
++# undef INCLUDE_DEFAULTS_MUSL_NATIVE
++# define INCLUDE_DEFAULTS_MUSL_NATIVE
++#else
++# undef INCLUDE_DEFAULTS_MUSL_CROSS
++# define INCLUDE_DEFAULTS_MUSL_CROSS
++#endif
++
++#undef INCLUDE_DEFAULTS
++#define INCLUDE_DEFAULTS \
++ { \
++ INCLUDE_DEFAULTS_MUSL_GPP \
++ INCLUDE_DEFAULTS_MUSL_PREFIX \
++ INCLUDE_DEFAULTS_MUSL_CROSS \
++ INCLUDE_DEFAULTS_MUSL_TOOL \
++ INCLUDE_DEFAULTS_MUSL_NATIVE \
++ { GCC_INCLUDE_DIR, "GCC", 0, 1, 0, 0 }, \
++ { 0, 0, 0, 0, 0, 0 } \
++ }
++#endif
+--- a/gcc/config/rs6000/sysv4le.h
++++ b/gcc/config/rs6000/sysv4le.h
+@@ -31,3 +31,5 @@
+ /* Little-endian PowerPC64 Linux uses the ELF v2 ABI by default. */
+ #define LINUX64_DEFAULT_ABI_ELFv2
+
++#undef MUSL_DYNAMIC_LINKER_E
++#define MUSL_DYNAMIC_LINKER_E ENDIAN_SELECT("","le","le")
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -2430,6 +2430,10 @@ powerpc*-*-linux*)
+ powerpc*-*-linux*paired*)
+ tm_file="${tm_file} rs6000/750cl.h" ;;
+ esac
++ case ${target} in
++ *-linux*-musl*)
++ enable_secureplt=yes ;;
++ esac
+ if test x${enable_secureplt} = xyes; then
+ tm_file="rs6000/secureplt.h ${tm_file}"
+ fi
diff --git a/toolchain/gcc/patches/5.5.0/204-musl_sh.patch b/toolchain/gcc/patches/5.5.0/204-musl_sh.patch
new file mode 100644
index 0000000000..8c3753d530
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/204-musl_sh.patch
@@ -0,0 +1,39 @@
+gcc/Changelog:
+
+2015-04-27 Gregor Richards <gregor.richards@uwaterloo.ca>
+ Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * config/sh/linux.h (MUSL_DYNAMIC_LINKER): Define.
+ (MUSL_DYNAMIC_LINKER_E, MUSL_DYNAMIC_LINKER_FP): Define.
+
+--- a/gcc/config/sh/linux.h
++++ b/gcc/config/sh/linux.h
+@@ -43,6 +43,28 @@ along with GCC; see the file COPYING3.
+
+ #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+
++#if TARGET_ENDIAN_DEFAULT == MASK_LITTLE_ENDIAN
++#define MUSL_DYNAMIC_LINKER_E "%{mb:eb}"
++#else
++#define MUSL_DYNAMIC_LINKER_E "%{!ml:eb}"
++#endif
++
++#if TARGET_CPU_DEFAULT & ( MASK_HARD_SH2A_DOUBLE | MASK_SH4 )
++/* "-nofpu" if any nofpu option is specified */
++#define MUSL_DYNAMIC_LINKER_FP \
++ "%{m1|m2|m2a-nofpu|m3|m4-nofpu|m4-100-nofpu|m4-200-nofpu|m4-300-nofpu|" \
++ "m4-340|m4-400|m4-500|m4al|m5-32media-nofpu|m5-64media-nofpu|" \
++ "m5-compact-nofpu:-nofpu}"
++#else
++/* "-nofpu" if none of the hard fpu options are specified */
++#define MUSL_DYNAMIC_LINKER_FP \
++ "%{m2a|m4|m4-100|m4-200|m4-300|m4a|m5-32media|m5-64media|m5-compact:;:-nofpu}"
++#endif
++
++#undef MUSL_DYNAMIC_LINKER
++#define MUSL_DYNAMIC_LINKER \
++ "/lib/ld-musl-sh" MUSL_DYNAMIC_LINKER_E MUSL_DYNAMIC_LINKER_FP ".so.1"
++
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+
+ #undef SUBTARGET_LINK_EMUL_SUFFIX
diff --git a/toolchain/gcc/patches/5.5.0/205-musl_x86.patch b/toolchain/gcc/patches/5.5.0/205-musl_x86.patch
new file mode 100644
index 0000000000..8772328d64
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/205-musl_x86.patch
@@ -0,0 +1,41 @@
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 15 May 2015 13:20:01 +0000 (+0000)
+Subject: [PATCH 9/13] x86 musl support
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=5551c8d927c17f60837f15f8dfe46f945ba3fa9c
+
+[PATCH 9/13] x86 musl support
+
+On behalf of Szabolcs Nagy.
+
+2015-05-15 Gregor Richards <gregor.richards@uwaterloo.ca>
+
+ * config/i386/linux.h (MUSL_DYNAMIC_LINKER): Define.
+ * config/i386/linux64.h (MUSL_DYNAMIC_LINKER32): Define.
+ (MUSL_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKERX32): Define.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223218 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+--- a/gcc/config/i386/linux.h
++++ b/gcc/config/i386/linux.h
+@@ -21,3 +21,6 @@ along with GCC; see the file COPYING3.
+
+ #define GNU_USER_LINK_EMULATION "elf_i386"
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++
++#undef MUSL_DYNAMIC_LINKER
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1"
+--- a/gcc/config/i386/linux64.h
++++ b/gcc/config/i386/linux64.h
+@@ -30,3 +30,10 @@ see the files COPYING3 and COPYING.RUNTI
+ #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
+ #define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
++
++#undef MUSL_DYNAMIC_LINKER32
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1"
++#undef MUSL_DYNAMIC_LINKER64
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-x86_64.so.1"
++#undef MUSL_DYNAMIC_LINKERX32
++#define MUSL_DYNAMIC_LINKERX32 "/lib/ld-musl-x32.so.1"
diff --git a/toolchain/gcc/patches/5.5.0/206-musl_aarch64.patch b/toolchain/gcc/patches/5.5.0/206-musl_aarch64.patch
new file mode 100644
index 0000000000..6925a026e7
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/206-musl_aarch64.patch
@@ -0,0 +1,31 @@
+From: jgreenhalgh <jgreenhalgh@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Wed, 27 May 2015 16:46:39 +0000 (+0000)
+Subject: [PATCH 3/13] aarch64 musl support
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=b3ff21cf0531be91bc3fb8200296a7633090ec78
+
+[PATCH 3/13] aarch64 musl support
+
+gcc/Changelog:
+
+2015-05-27 Gregor Richards <gregor.richards@uwaterloo.ca>
+ Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * config/aarch64/aarch64-linux.h (MUSL_DYNAMIC_LINKER): Define.
+
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223766 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+--- a/gcc/config/aarch64/aarch64-linux.h
++++ b/gcc/config/aarch64/aarch64-linux.h
+@@ -23,6 +23,9 @@
+
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
+
++#undef MUSL_DYNAMIC_LINKER
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
++
+ #undef ASAN_CC1_SPEC
+ #define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
+
diff --git a/toolchain/gcc/patches/5.5.0/207-musl_fixincludes.patch b/toolchain/gcc/patches/5.5.0/207-musl_fixincludes.patch
new file mode 100644
index 0000000000..0ff33d39d8
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/207-musl_fixincludes.patch
@@ -0,0 +1,30 @@
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Wed, 22 Apr 2015 14:18:16 +0000 (+0000)
+Subject: fixincludes update for musl support
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=2dc727de2e87c2756a514cbb43cea23c99deaa3d
+
+fixincludes update for musl support
+
+On behalf of Szabolcs.Nagy@arm.com
+
+2015-04-22 Gregor Richards <gregor.richards@uwaterloo.ca>
+
+ * mkfixinc.sh: Add *-musl* with no fixes.
+
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222327 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+--- a/fixincludes/mkfixinc.sh
++++ b/fixincludes/mkfixinc.sh
+@@ -19,7 +19,8 @@ case $machine in
+ powerpc-*-eabi* | \
+ powerpc-*-rtems* | \
+ powerpcle-*-eabisim* | \
+- powerpcle-*-eabi* )
++ powerpcle-*-eabi* | \
++ *-musl* )
+ # IF there is no include fixing,
+ # THEN create a no-op fixer and exit
+ (echo "#! /bin/sh" ; echo "exit 0" ) > ${target}
diff --git a/toolchain/gcc/patches/5.5.0/209-musl_libstdc++.patch b/toolchain/gcc/patches/5.5.0/209-musl_libstdc++.patch
new file mode 100644
index 0000000000..d2414d0232
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/209-musl_libstdc++.patch
@@ -0,0 +1,72 @@
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Wed, 22 Apr 2015 14:24:11 +0000 (+0000)
+Subject: libstdc++, libgfortran gthr workaround for musl
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=1e5f711c11cb80ce609db9e9c1d8b2da0f7b5b61
+
+libstdc++, libgfortran gthr workaround for musl
+
+On behalf of szabolcs.nagy@arm.com
+
+[libstdc++-v3/]
+2015-04-22 Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * config/os/generic/os_defines.h (_GLIBCXX_GTHREAD_USE_WEAK): Define.
+ * configure.host (os_include_dir): Set to "os/generic" for linux-musl*.
+
+[libgfortran/]
+2015-04-22 Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * acinclude.m4 (GTHREAD_USE_WEAK): Define as 0 for *-*-musl*.
+ * configure: Regenerate.
+
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222329 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+--- a/libgfortran/acinclude.m4
++++ b/libgfortran/acinclude.m4
+@@ -100,7 +100,7 @@ void foo (void);
+ [Define to 1 if the target supports #pragma weak])
+ fi
+ case "$host" in
+- *-*-darwin* | *-*-hpux* | *-*-cygwin* | *-*-mingw* )
++ *-*-darwin* | *-*-hpux* | *-*-cygwin* | *-*-mingw* | *-*-musl* )
+ AC_DEFINE(GTHREAD_USE_WEAK, 0,
+ [Define to 0 if the target shouldn't use #pragma weak])
+ ;;
+--- a/libgfortran/configure
++++ b/libgfortran/configure
+@@ -26456,7 +26456,7 @@ $as_echo "#define SUPPORTS_WEAK 1" >>con
+
+ fi
+ case "$host" in
+- *-*-darwin* | *-*-hpux* | *-*-cygwin* | *-*-mingw* )
++ *-*-darwin* | *-*-hpux* | *-*-cygwin* | *-*-mingw* | *-*-musl* )
+
+ $as_echo "#define GTHREAD_USE_WEAK 0" >>confdefs.h
+
+--- a/libstdc++-v3/config/os/generic/os_defines.h
++++ b/libstdc++-v3/config/os/generic/os_defines.h
+@@ -33,4 +33,9 @@
+ // System-specific #define, typedefs, corrections, etc, go here. This
+ // file will come before all others.
+
++// Disable the weak reference logic in gthr.h for os/generic because it
++// is broken on every platform unless there is implementation specific
++// workaround in gthr-posix.h and at link-time for static linking.
++#define _GLIBCXX_GTHREAD_USE_WEAK 0
++
+ #endif
+--- a/libstdc++-v3/configure.host
++++ b/libstdc++-v3/configure.host
+@@ -273,6 +273,9 @@ case "${host_os}" in
+ freebsd*)
+ os_include_dir="os/bsd/freebsd"
+ ;;
++ linux-musl*)
++ os_include_dir="os/generic"
++ ;;
+ gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
+ if [ "$uclibc" = "yes" ]; then
+ os_include_dir="os/uclibc"
diff --git a/toolchain/gcc/patches/5.5.0/230-musl_libssp.patch b/toolchain/gcc/patches/5.5.0/230-musl_libssp.patch
new file mode 100644
index 0000000000..30f42e9f7c
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/230-musl_libssp.patch
@@ -0,0 +1,13 @@
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -727,7 +727,9 @@ proper position among the other output f
+ #endif
+
+ #ifndef LINK_SSP_SPEC
+-#ifdef TARGET_LIBC_PROVIDES_SSP
++#if DEFAULT_LIBC == LIBC_MUSL
++#define LINK_SSP_SPEC "-lssp_nonshared"
++#elif defined(TARGET_LIBC_PROVIDES_SSP)
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+ "|fstack-protector-strong|fstack-protector-explicit:}"
+ #else
diff --git a/toolchain/gcc/patches/5.5.0/240-musl-libitm-fixes.patch b/toolchain/gcc/patches/5.5.0/240-musl-libitm-fixes.patch
new file mode 100644
index 0000000000..533cb68499
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/240-musl-libitm-fixes.patch
@@ -0,0 +1,61 @@
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Wed, 22 Apr 2015 14:11:25 +0000 (+0000)
+Subject: libitm fixes for musl support
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=e53a4d49c3d03ab8eaddb073cf972c1c46d75338
+
+libitm fixes for musl support
+
+On behalf of Szabolcs.Nagy@arm.com
+
+2015-04-22 Gregor Richards <gregor.richards@uwaterloo.ca>
+
+ * config/arm/hwcap.cc: Use fcntl.h instead of sys/fcntl.h.
+ * config/linux/x86/tls.h: Only use __GLIBC_PREREQ if defined.
+
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222325 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+--- a/libitm/config/arm/hwcap.cc
++++ b/libitm/config/arm/hwcap.cc
+@@ -40,7 +40,7 @@ int GTM_hwcap HIDDEN = 0
+
+ #ifdef __linux__
+ #include <unistd.h>
+-#include <sys/fcntl.h>
++#include <fcntl.h>
+ #include <elf.h>
+
+ static void __attribute__((constructor))
+--- a/libitm/config/linux/x86/tls.h
++++ b/libitm/config/linux/x86/tls.h
+@@ -25,16 +25,19 @@
+ #ifndef LIBITM_X86_TLS_H
+ #define LIBITM_X86_TLS_H 1
+
+-#if defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 10)
++#if defined(__GLIBC_PREREQ)
++#if __GLIBC_PREREQ(2, 10)
+ /* Use slots in the TCB head rather than __thread lookups.
+ GLIBC has reserved words 10 through 13 for TM. */
+ #define HAVE_ARCH_GTM_THREAD 1
+ #define HAVE_ARCH_GTM_THREAD_DISP 1
+ #endif
++#endif
+
+ #include "config/generic/tls.h"
+
+-#if defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 10)
++#if defined(__GLIBC_PREREQ)
++#if __GLIBC_PREREQ(2, 10)
+ namespace GTM HIDDEN {
+
+ #ifdef __x86_64__
+@@ -101,5 +104,6 @@ static inline void set_abi_disp(struct a
+
+ } // namespace GTM
+ #endif /* >= GLIBC 2.10 */
++#endif
+
+ #endif // LIBITM_X86_TLS_H
diff --git a/toolchain/gcc/patches/5.5.0/250-add-musl.patch b/toolchain/gcc/patches/5.5.0/250-add-musl.patch
new file mode 100644
index 0000000000..8cbeddea33
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/250-add-musl.patch
@@ -0,0 +1,120 @@
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 8 May 2015 08:30:40 +0000 (+0000)
+Subject: [PATCH 0/13] Add musl support to GCC
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=f2d678afa5b8385d763b93772d73d6bf80a9739e
+
+[PATCH 0/13] Add musl support to GCC
+
+2015-05-08 Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * config/glibc-stdint.h (OPTION_MUSL): Define.
+ (INT_FAST16_TYPE, INT_FAST32_TYPE, UINT_FAST16_TYPE, UINT_FAST32_TYPE):
+ Change the definition based on OPTION_MUSL for 64 bit targets.
+ * config/linux.h (OPTION_MUSL): Redefine.
+ * config/alpha/linux.h (OPTION_MUSL): Redefine.
+ * config/rs6000/linux.h (OPTION_MUSL): Redefine.
+ * config/rs6000/linux64.h (OPTION_MUSL): Redefine.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222905 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+--- a/gcc/config/alpha/linux.h
++++ b/gcc/config/alpha/linux.h
+@@ -61,10 +61,14 @@ along with GCC; see the file COPYING3.
+ #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC)
+ #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
+ #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
++#undef OPTION_MUSL
++#define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL)
+ #else
+ #define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
+ #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
+ #define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
++#undef OPTION_MUSL
++#define OPTION_MUSL (linux_libc == LIBC_MUSL)
+ #endif
+
+ /* Determine what functions are present at the runtime;
+--- a/gcc/config/glibc-stdint.h
++++ b/gcc/config/glibc-stdint.h
+@@ -22,6 +22,12 @@ a copy of the GCC Runtime Library Except
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
++/* Systems using musl libc should use this header and make sure
++ OPTION_MUSL is defined correctly before using the TYPE macros. */
++#ifndef OPTION_MUSL
++#define OPTION_MUSL 0
++#endif
++
+ #define SIG_ATOMIC_TYPE "int"
+
+ #define INT8_TYPE "signed char"
+@@ -43,12 +49,12 @@ see the files COPYING3 and COPYING.RUNTI
+ #define UINT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
+
+ #define INT_FAST8_TYPE "signed char"
+-#define INT_FAST16_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
+-#define INT_FAST32_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
++#define INT_FAST16_TYPE (LONG_TYPE_SIZE == 64 && !OPTION_MUSL ? "long int" : "int")
++#define INT_FAST32_TYPE (LONG_TYPE_SIZE == 64 && !OPTION_MUSL ? "long int" : "int")
+ #define INT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
+ #define UINT_FAST8_TYPE "unsigned char"
+-#define UINT_FAST16_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int")
+-#define UINT_FAST32_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int")
++#define UINT_FAST16_TYPE (LONG_TYPE_SIZE == 64 && !OPTION_MUSL ? "long unsigned int" : "unsigned int")
++#define UINT_FAST32_TYPE (LONG_TYPE_SIZE == 64 && !OPTION_MUSL ? "long unsigned int" : "unsigned int")
+ #define UINT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
+
+ #define INTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
+--- a/gcc/config/linux.h
++++ b/gcc/config/linux.h
+@@ -32,11 +32,13 @@ see the files COPYING3 and COPYING.RUNTI
+ #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC)
+ #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
+ #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
++#undef OPTION_MUSL
+ #define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL)
+ #else
+ #define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
+ #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
+ #define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
++#undef OPTION_MUSL
+ #define OPTION_MUSL (linux_libc == LIBC_MUSL)
+ #endif
+
+--- a/gcc/config/rs6000/linux.h
++++ b/gcc/config/rs6000/linux.h
+@@ -30,10 +30,14 @@
+ #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC)
+ #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
+ #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
++#undef OPTION_MUSL
++#define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL)
+ #else
+ #define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
+ #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
+ #define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
++#undef OPTION_MUSL
++#define OPTION_MUSL (linux_libc == LIBC_MUSL)
+ #endif
+
+ /* Determine what functions are present at the runtime;
+--- a/gcc/config/rs6000/linux64.h
++++ b/gcc/config/rs6000/linux64.h
+@@ -299,10 +299,14 @@ extern int dot_symbols;
+ #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC)
+ #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
+ #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
++#undef OPTION_MUSL
++#define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL)
+ #else
+ #define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
+ #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
+ #define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
++#undef OPTION_MUSL
++#define OPTION_MUSL (linux_libc == LIBC_MUSL)
+ #endif
+
+ /* Determine what functions are present at the runtime;
diff --git a/toolchain/gcc/patches/5.5.0/260-musl-add-unwind-fix.patch b/toolchain/gcc/patches/5.5.0/260-musl-add-unwind-fix.patch
new file mode 100644
index 0000000000..a3b83e2074
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/260-musl-add-unwind-fix.patch
@@ -0,0 +1,34 @@
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Wed, 22 Apr 2015 14:20:01 +0000 (+0000)
+Subject: unwind fix for musl
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=a2e31d0681d8a47389b8a3552622fbd9827bcef4
+
+unwind fix for musl
+
+On behalf of szabolcs.nagy@arm.com
+
+2015-04-22 Gregor Richards <gregor.richards@uwaterloo.ca>
+ Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * unwind-dw2-fde-dip.c (USE_PT_GNU_EH_FRAME): Define it on
+ Linux if target provides dl_iterate_phdr.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222328 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+--- a/libgcc/unwind-dw2-fde-dip.c
++++ b/libgcc/unwind-dw2-fde-dip.c
+@@ -59,6 +59,12 @@
+
+ #if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
+ && defined(TARGET_DL_ITERATE_PHDR) \
++ && defined(__linux__)
++# define USE_PT_GNU_EH_FRAME
++#endif
++
++#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
++ && defined(TARGET_DL_ITERATE_PHDR) \
+ && (defined(__DragonFly__) || defined(__FreeBSD__))
+ # define ElfW __ElfN
+ # define USE_PT_GNU_EH_FRAME
diff --git a/toolchain/gcc/patches/5.5.0/270-musl-add-powerpc-softfloat-fix.patch b/toolchain/gcc/patches/5.5.0/270-musl-add-powerpc-softfloat-fix.patch
new file mode 100644
index 0000000000..bdebf6c01f
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/270-musl-add-powerpc-softfloat-fix.patch
@@ -0,0 +1,24 @@
+--- a/gcc/config/rs6000/linux64.h
++++ b/gcc/config/rs6000/linux64.h
+@@ -369,8 +369,8 @@ extern int dot_symbols;
+ #endif
+ #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
+ #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
+-#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E ".so.1"
+-#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-powerpc64" MUSL_DYNAMIC_LINKER_E ".so.1"
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-powerpc64" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
+ #if DEFAULT_LIBC == LIBC_UCLIBC
+ #define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
+ #elif DEFAULT_LIBC == LIBC_GLIBC
+--- a/gcc/config/rs6000/sysv4.h
++++ b/gcc/config/rs6000/sysv4.h
+@@ -765,7 +765,7 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF
+
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+ #define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+-#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E ".so.1"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
+ #if DEFAULT_LIBC == LIBC_UCLIBC
+ #define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
+ #elif DEFAULT_LIBC == LIBC_MUSL
diff --git a/toolchain/gcc/patches/5.5.0/280-musl-disable-ifunc-by-default.patch b/toolchain/gcc/patches/5.5.0/280-musl-disable-ifunc-by-default.patch
new file mode 100644
index 0000000000..9a043eed3c
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/280-musl-disable-ifunc-by-default.patch
@@ -0,0 +1,36 @@
+From 450fb05e2a7510d37744f044009f8237d902f65c Mon Sep 17 00:00:00 2001
+From: nsz <nsz@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Tue, 30 Aug 2016 10:26:22 +0000
+Subject: [PATCH] disable ifunc on *-musl by default
+
+gcc/
+ * config.gcc (*-*-*musl*): Disable gnu-indirect-function.
+
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239859 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+ gcc/ChangeLog | 4 ++++
+ gcc/config.gcc | 4 ++--
+ 2 files changed, 6 insertions(+), 2 deletions(-)
+
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -1455,7 +1455,7 @@ i[34567]86-*-linux* | i[34567]86-*-kfree
+ extra_options="${extra_options} linux-android.opt"
+ # Assume modern glibc if not targeting Android nor uclibc.
+ case ${target} in
+- *-*-*android*|*-*-*uclibc*)
++ *-*-*android*|*-*-*uclibc*|*-*-*musl*)
+ ;;
+ *)
+ default_gnu_indirect_function=yes
+@@ -1524,7 +1524,7 @@ x86_64-*-linux* | x86_64-*-kfreebsd*-gnu
+ extra_options="${extra_options} linux-android.opt"
+ # Assume modern glibc if not targeting Android nor uclibc.
+ case ${target} in
+- *-*-*android*|*-*-*uclibc*)
++ *-*-*android*|*-*-*uclibc*|*-*-*musl*)
+ ;;
+ *)
+ default_gnu_indirect_function=yes
diff --git a/toolchain/gcc/patches/5.5.0/300-mips_Os_cpu_rtx_cost_model.patch b/toolchain/gcc/patches/5.5.0/300-mips_Os_cpu_rtx_cost_model.patch
new file mode 100644
index 0000000000..1743658ac6
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/300-mips_Os_cpu_rtx_cost_model.patch
@@ -0,0 +1,14 @@
+Use the proper rtx cost model for the selected CPU, even when optimizing
+for size. This generates better code.
+
+--- a/gcc/config/mips/mips.c
++++ b/gcc/config/mips/mips.c
+@@ -17483,7 +17483,7 @@ mips_option_override (void)
+ flag_pcc_struct_return = 0;
+
+ /* Decide which rtx_costs structure to use. */
+- if (optimize_size)
++ if (0 && optimize_size)
+ mips_cost = &mips_rtx_cost_optimize_size;
+ else
+ mips_cost = &mips_rtx_cost_data[mips_tune];
diff --git a/toolchain/gcc/patches/5.5.0/800-arm_v5te_no_ldrd_strd.patch b/toolchain/gcc/patches/5.5.0/800-arm_v5te_no_ldrd_strd.patch
new file mode 100644
index 0000000000..0edeb13c75
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/800-arm_v5te_no_ldrd_strd.patch
@@ -0,0 +1,11 @@
+--- a/gcc/config/arm/arm.h
++++ b/gcc/config/arm/arm.h
+@@ -285,7 +285,7 @@ extern void (*arm_lang_output_object_att
+ /* Thumb-1 only. */
+ #define TARGET_THUMB1_ONLY (TARGET_THUMB1 && !arm_arch_notm)
+
+-#define TARGET_LDRD (arm_arch5e && ARM_DOUBLEWORD_ALIGN \
++#define TARGET_LDRD (arm_arch6 && ARM_DOUBLEWORD_ALIGN \
+ && !TARGET_THUMB1)
+
+ #define TARGET_CRC32 (arm_arch_crc)
diff --git a/toolchain/gcc/patches/5.5.0/810-arm-softfloat-libgcc.patch b/toolchain/gcc/patches/5.5.0/810-arm-softfloat-libgcc.patch
new file mode 100644
index 0000000000..1d06f5b2ec
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/810-arm-softfloat-libgcc.patch
@@ -0,0 +1,25 @@
+--- a/libgcc/config/arm/t-linux
++++ b/libgcc/config/arm/t-linux
+@@ -1,6 +1,10 @@
+ LIB1ASMSRC = arm/lib1funcs.S
+ LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
+- _ctzsi2 _arm_addsubdf3 _arm_addsubsf3
++ _ctzsi2 _arm_addsubdf3 _arm_addsubsf3 \
++ _arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
++ _arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
++ _arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
++ _arm_fixsfsi _arm_fixunssfsi
+
+ # Just for these, we omit the frame pointer since it makes such a big
+ # difference.
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -60,8 +60,6 @@
+ %{shared:-lc} \
+ %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+
+-#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
+-
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+
+ #define LINUX_TARGET_LINK_SPEC "%{h*} \
diff --git a/toolchain/gcc/patches/5.5.0/820-libgcc_pic.patch b/toolchain/gcc/patches/5.5.0/820-libgcc_pic.patch
new file mode 100644
index 0000000000..42bf0c8ccc
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/820-libgcc_pic.patch
@@ -0,0 +1,36 @@
+--- a/libgcc/Makefile.in
++++ b/libgcc/Makefile.in
+@@ -887,11 +887,12 @@ $(libgcov-driver-objects): %$(objext): $
+
+ # Static libraries.
+ libgcc.a: $(libgcc-objects)
++libgcc_pic.a: $(libgcc-s-objects)
+ libgcov.a: $(libgcov-objects)
+ libunwind.a: $(libunwind-objects)
+ libgcc_eh.a: $(libgcc-eh-objects)
+
+-libgcc.a libgcov.a libunwind.a libgcc_eh.a:
++libgcc.a libgcov.a libunwind.a libgcc_eh.a libgcc_pic.a:
+ -rm -f $@
+
+ objects="$(objects)"; \
+@@ -913,7 +914,7 @@ libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_E
+ endif
+
+ ifeq ($(enable_shared),yes)
+-all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
++all: libgcc_eh.a libgcc_pic.a libgcc_s$(SHLIB_EXT)
+ ifneq ($(LIBUNWIND),)
+ all: libunwind$(SHLIB_EXT)
+ endif
+@@ -1108,6 +1109,10 @@ install-shared:
+ chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+ $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+
++ $(INSTALL_DATA) libgcc_pic.a $(mapfile) $(DESTDIR)$(inst_libdir)/
++ chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_pic.a
++ $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_pic.a
++
+ $(subst @multilib_dir@,$(MULTIDIR),$(subst \
+ @shlib_base_name@,libgcc_s,$(subst \
+ @shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))
diff --git a/toolchain/gcc/patches/5.5.0/830-arm_unbreak_armv4t.patch b/toolchain/gcc/patches/5.5.0/830-arm_unbreak_armv4t.patch
new file mode 100644
index 0000000000..37f8f2a54d
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/830-arm_unbreak_armv4t.patch
@@ -0,0 +1,13 @@
+http://sourceware.org/ml/crossgcc/2008-05/msg00009.html
+
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -45,7 +45,7 @@
+ The ARM10TDMI core is the default for armv5t, so set
+ SUBTARGET_CPU_DEFAULT to achieve this. */
+ #undef SUBTARGET_CPU_DEFAULT
+-#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
++#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9tdmi
+
+ /* TARGET_BIG_ENDIAN_DEFAULT is set in
+ config.gcc for big endian configurations. */
diff --git a/toolchain/gcc/patches/5.5.0/840-armv4_pass_fix-v4bx_to_ld.patch b/toolchain/gcc/patches/5.5.0/840-armv4_pass_fix-v4bx_to_ld.patch
new file mode 100644
index 0000000000..cb1fb98235
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/840-armv4_pass_fix-v4bx_to_ld.patch
@@ -0,0 +1,19 @@
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -94,10 +94,15 @@
+ #define MUSL_DYNAMIC_LINKER \
+ "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
+
++/* For armv4 we pass --fix-v4bx to linker to support EABI */
++#undef TARGET_FIX_V4BX_SPEC
++#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\
++ "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}"
++
+ /* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
+ use the GNU/Linux version, not the generic BPABI version. */
+ #undef LINK_SPEC
+-#define LINK_SPEC EABI_LINK_SPEC \
++#define LINK_SPEC EABI_LINK_SPEC TARGET_FIX_V4BX_SPEC \
+ LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC, \
+ LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
+
diff --git a/toolchain/gcc/patches/5.5.0/850-use_shared_libgcc.patch b/toolchain/gcc/patches/5.5.0/850-use_shared_libgcc.patch
new file mode 100644
index 0000000000..5818cf4da0
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/850-use_shared_libgcc.patch
@@ -0,0 +1,47 @@
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -131,10 +131,6 @@
+ #define ENDFILE_SPEC \
+ LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
+
+-/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
+- do not use -lfloat. */
+-#undef LIBGCC_SPEC
+-
+ /* Clear the instruction cache from `beg' to `end'. This is
+ implemented in lib1funcs.S, so ensure an error if this definition
+ is used. */
+--- a/gcc/config/linux.h
++++ b/gcc/config/linux.h
+@@ -53,6 +53,10 @@ see the files COPYING3 and COPYING.RUNTI
+ builtin_assert ("system=posix"); \
+ } while (0)
+
++#ifndef LIBGCC_SPEC
++#define LIBGCC_SPEC "%{static|static-libgcc:-lgcc}%{!static:%{!static-libgcc:-lgcc_s}}"
++#endif
++
+ /* Determine which dynamic linker to use depending on whether GLIBC or
+ uClibc or Bionic or musl is the default C library and whether
+ -muclibc or -mglibc or -mbionic or -mmusl has been passed to change
+--- a/libgcc/mkmap-symver.awk
++++ b/libgcc/mkmap-symver.awk
+@@ -132,5 +132,5 @@ function output(lib) {
+ else if (inherit[lib])
+ printf("} %s;\n", inherit[lib]);
+ else
+- printf ("\n local:\n\t*;\n};\n");
++ printf ("\n\t*;\n};\n");
+ }
+--- a/gcc/config/rs6000/linux.h
++++ b/gcc/config/rs6000/linux.h
+@@ -60,6 +60,9 @@
+ #undef CPP_OS_DEFAULT_SPEC
+ #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
+
++#undef LIBGCC_SPEC
++#define LIBGCC_SPEC "%{!static:%{!static-libgcc:-lgcc_s}} -lgcc"
++
+ #undef LINK_SHLIB_SPEC
+ #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
+
diff --git a/toolchain/gcc/patches/5.5.0/851-libgcc_no_compat.patch b/toolchain/gcc/patches/5.5.0/851-libgcc_no_compat.patch
new file mode 100644
index 0000000000..80c3476841
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/851-libgcc_no_compat.patch
@@ -0,0 +1,12 @@
+--- a/libgcc/config/t-libunwind
++++ b/libgcc/config/t-libunwind
+@@ -2,8 +2,7 @@
+
+ HOST_LIBGCC2_CFLAGS += -DUSE_GAS_SYMVER
+
+-LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c \
+- $(srcdir)/unwind-compat.c $(srcdir)/unwind-dw2-fde-compat.c
++LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
+ LIB2ADDEHSTATIC = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
+
+ # Override the default value from t-slibgcc-elf-ver and mention -lunwind
diff --git a/toolchain/gcc/patches/5.5.0/870-ppc_no_crtsavres.patch b/toolchain/gcc/patches/5.5.0/870-ppc_no_crtsavres.patch
new file mode 100644
index 0000000000..d06673efc2
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/870-ppc_no_crtsavres.patch
@@ -0,0 +1,11 @@
+--- a/gcc/config/rs6000/rs6000.c
++++ b/gcc/config/rs6000/rs6000.c
+@@ -21528,7 +21528,7 @@ rs6000_savres_strategy (rs6000_stack_t *
+ /* Define cutoff for using out-of-line functions to save registers. */
+ if (DEFAULT_ABI == ABI_V4 || TARGET_ELF)
+ {
+- if (!optimize_size)
++ if (1)
+ {
+ strategy |= SAVE_INLINE_FPRS | REST_INLINE_FPRS;
+ strategy |= SAVE_INLINE_GPRS | REST_INLINE_GPRS;
diff --git a/toolchain/gcc/patches/5.5.0/880-no_java_section.patch b/toolchain/gcc/patches/5.5.0/880-no_java_section.patch
new file mode 100644
index 0000000000..def6c9f4a0
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/880-no_java_section.patch
@@ -0,0 +1,11 @@
+--- a/gcc/defaults.h
++++ b/gcc/defaults.h
+@@ -380,7 +380,7 @@ see the files COPYING3 and COPYING.RUNTI
+ /* If we have named section and we support weak symbols, then use the
+ .jcr section for recording java classes which need to be registered
+ at program start-up time. */
+-#if defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK
++#if 0 && defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK
+ #ifndef JCR_SECTION_NAME
+ #define JCR_SECTION_NAME ".jcr"
+ #endif
diff --git a/toolchain/gcc/patches/5.5.0/881-no_tm_section.patch b/toolchain/gcc/patches/5.5.0/881-no_tm_section.patch
new file mode 100644
index 0000000000..fab5db3be5
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/881-no_tm_section.patch
@@ -0,0 +1,11 @@
+--- a/libgcc/crtstuff.c
++++ b/libgcc/crtstuff.c
+@@ -152,7 +152,7 @@ call_ ## FUNC (void) \
+ #endif
+
+ #if !defined(USE_TM_CLONE_REGISTRY) && defined(OBJECT_FORMAT_ELF)
+-# define USE_TM_CLONE_REGISTRY 1
++# define USE_TM_CLONE_REGISTRY 0
+ #endif
+
+ /* We do not want to add the weak attribute to the declarations of these
diff --git a/toolchain/gcc/patches/5.5.0/900-bad-mips16-crt.patch b/toolchain/gcc/patches/5.5.0/900-bad-mips16-crt.patch
new file mode 100644
index 0000000000..dd6e9dc889
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/900-bad-mips16-crt.patch
@@ -0,0 +1,9 @@
+--- a/libgcc/config/mips/t-mips16
++++ b/libgcc/config/mips/t-mips16
+@@ -43,3 +43,6 @@ SYNC_CFLAGS = -mno-mips16
+
+ # Version these symbols if building libgcc.so.
+ SHLIB_MAPFILES += $(srcdir)/config/mips/libgcc-mips16.ver
++
++CRTSTUFF_T_CFLAGS += -mno-mips16
++CRTSTUFF_T_CFLAGS_S += -mno-mips16
diff --git a/toolchain/gcc/patches/5.5.0/910-mbsd_multi.patch b/toolchain/gcc/patches/5.5.0/910-mbsd_multi.patch
new file mode 100644
index 0000000000..88905f6f2f
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/910-mbsd_multi.patch
@@ -0,0 +1,222 @@
+
+ This patch brings over a few features from MirBSD:
+ * -fhonour-copts
+ If this option is not given, it's warned (depending
+ on environment variables). This is to catch errors
+ of misbuilt packages which override CFLAGS themselves.
+ * -Werror-maybe-reset
+ Has the effect of -Wno-error if GCC_NO_WERROR is
+ set and not '0', a no-operation otherwise. This is
+ to be able to use -Werror in "make" but prevent
+ GNU autoconf generated configure scripts from
+ freaking out.
+
+ This patch was authored by Thorsten Glaser <tg at mirbsd.de>
+ with copyright assignment to the FSF in effect.
+
+--- a/gcc/c-family/c-opts.c
++++ b/gcc/c-family/c-opts.c
+@@ -122,6 +122,9 @@ static int class_dump_flags;
+ /* Whether any standard preincluded header has been preincluded. */
+ static bool done_preinclude;
+
++/* Check if a port honours COPTS. */
++static int honour_copts = 0;
++
+ static void handle_OPT_d (const char *);
+ static void set_std_cxx98 (int);
+ static void set_std_cxx11 (int);
+@@ -449,6 +452,12 @@ c_common_handle_option (size_t scode, co
+ flag_no_builtin = !value;
+ break;
+
++ case OPT_fhonour_copts:
++ if (c_language == clk_c) {
++ honour_copts++;
++ }
++ break;
++
+ case OPT_fconstant_string_class_:
+ constant_string_class_name = arg;
+ break;
+@@ -1039,6 +1048,47 @@ c_common_init (void)
+ return false;
+ }
+
++ if (c_language == clk_c) {
++ char *ev = getenv ("GCC_HONOUR_COPTS");
++ int evv;
++ if (ev == NULL)
++ evv = -1;
++ else if ((*ev == '0') || (*ev == '\0'))
++ evv = 0;
++ else if (*ev == '1')
++ evv = 1;
++ else if (*ev == '2')
++ evv = 2;
++ else if (*ev == 's')
++ evv = -1;
++ else {
++ warning (0, "unknown GCC_HONOUR_COPTS value, assuming 1");
++ evv = 1; /* maybe depend this on something like MIRBSD_NATIVE? */
++ }
++ if (evv == 1) {
++ if (honour_copts == 0) {
++ error ("someone does not honour COPTS at all in lenient mode");
++ return false;
++ } else if (honour_copts != 1) {
++ warning (0, "someone does not honour COPTS correctly, passed %d times",
++ honour_copts);
++ }
++ } else if (evv == 2) {
++ if (honour_copts == 0) {
++ error ("someone does not honour COPTS at all in strict mode");
++ return false;
++ } else if (honour_copts != 1) {
++ error ("someone does not honour COPTS correctly, passed %d times",
++ honour_copts);
++ return false;
++ }
++ } else if (evv == 0) {
++ if (honour_copts != 1)
++ inform (0, "someone does not honour COPTS correctly, passed %d times",
++ honour_copts);
++ }
++ }
++
+ return true;
+ }
+
+--- a/gcc/c-family/c.opt
++++ b/gcc/c-family/c.opt
+@@ -431,6 +431,10 @@ Wfloat-conversion
+ C ObjC C++ ObjC++ Var(warn_float_conversion) LangEnabledBy(C ObjC C++ ObjC++,Wconversion)
+ Warn for implicit type conversions that cause loss of floating point precision
+
++Werror-maybe-reset
++C ObjC C++ ObjC++
++; Documented in common.opt
++
+ Wfloat-equal
+ C ObjC C++ ObjC++ Var(warn_float_equal) Warning
+ Warn if testing floating point numbers for equality
+@@ -1161,6 +1165,9 @@ C++ ObjC++ Optimization Alias(fexception
+ fhonor-std
+ C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
++fhonour-copts
++C ObjC C++ ObjC++ RejectNegative
++
+ fhosted
+ C ObjC
+ Assume normal C execution environment
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -561,6 +561,10 @@ Werror=
+ Common Joined
+ Treat specified warning as error
+
++Werror-maybe-reset
++Common
++If environment variable GCC_NO_WERROR is set, act as -Wno-error
++
+ Wextra
+ Common Var(extra_warnings) Warning
+ Print extra (possibly unwanted) warnings
+@@ -1360,6 +1364,9 @@ fguess-branch-probability
+ Common Report Var(flag_guess_branch_prob) Optimization
+ Enable guessing of branch probabilities
+
++fhonour-copts
++Common RejectNegative
++
+ ; Nonzero means ignore `#ident' directives. 0 means handle them.
+ ; Generate position-independent code for executables if possible
+ ; On SVR4 targets, it also controls whether or not to emit a
+--- a/gcc/opts.c
++++ b/gcc/opts.c
+@@ -1699,6 +1699,17 @@ common_handle_option (struct gcc_options
+ opts, opts_set, loc, dc);
+ break;
+
++ case OPT_Werror_maybe_reset:
++ {
++ char *ev = getenv ("GCC_NO_WERROR");
++ if ((ev != NULL) && (*ev != '0'))
++ warnings_are_errors = 0;
++ }
++ break;
++
++ case OPT_fhonour_copts:
++ break;
++
+ case OPT_Wlarger_than_:
+ opts->x_larger_than_size = value;
+ opts->x_warn_larger_than = value != -1;
+--- a/gcc/doc/cppopts.texi
++++ b/gcc/doc/cppopts.texi
+@@ -163,6 +163,11 @@ in older programs. This warning is on b
+ Make all warnings into hard errors. Source code which triggers warnings
+ will be rejected.
+
++@item -Werror-maybe-reset
++@opindex Werror-maybe-reset
++Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
++variable is set to anything other than 0 or empty.
++
+ @item -Wsystem-headers
+ @opindex Wsystem-headers
+ Issue warnings for code in system headers. These are normally unhelpful
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -251,7 +251,7 @@ Objective-C and Objective-C++ Dialects}.
+ -Wdisabled-optimization @gol
+ -Wno-discarded-qualifiers -Wno-discarded-array-qualifiers @gol
+ -Wno-div-by-zero -Wdouble-promotion -Wempty-body -Wenum-compare @gol
+--Wno-endif-labels -Werror -Werror=* @gol
++-Wno-endif-labels -Werror -Werror=* -Werror-maybe-reset @gol
+ -Wfatal-errors -Wfloat-equal -Wformat -Wformat=2 @gol
+ -Wno-format-contains-nul -Wno-format-extra-args -Wformat-nonliteral @gol
+ -Wformat-security -Wformat-signedness -Wformat-y2k @gol
+@@ -5388,6 +5388,22 @@ This option is only supported for C and
+ @option{-Wall} and by @option{-Wpedantic}, which can be disabled with
+ @option{-Wno-pointer-sign}.
+
++@item -Werror-maybe-reset
++@opindex Werror-maybe-reset
++Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
++variable is set to anything other than 0 or empty.
++
++@item -fhonour-copts
++@opindex fhonour-copts
++If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
++given at least once, and warn if it is given more than once.
++If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
++given exactly once.
++If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
++is not given exactly once.
++The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
++This flag and environment variable only affect the C language.
++
+ @item -Wstack-protector
+ @opindex Wstack-protector
+ @opindex Wno-stack-protector
+@@ -7866,7 +7882,7 @@ so, the first branch is redirected to ei
+ second branch or a point immediately following it, depending on whether
+ the condition is known to be true or false.
+
+-Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
++Enabled at levels @option{-O3}.
+
+ @item -fsplit-wide-types
+ @opindex fsplit-wide-types
+--- a/gcc/java/jvspec.c
++++ b/gcc/java/jvspec.c
+@@ -629,6 +629,7 @@ lang_specific_pre_link (void)
+ class name. Append dummy `.c' that can be stripped by set_input so %b
+ is correct. */
+ set_input (concat (main_class_name, "main.c", NULL));
++ putenv ("GCC_HONOUR_COPTS=s"); /* XXX hack! */
+ err = do_spec (jvgenmain_spec);
+ if (err == 0)
+ {
diff --git a/toolchain/gcc/patches/5.5.0/920-specs_nonfatal_getenv.patch b/toolchain/gcc/patches/5.5.0/920-specs_nonfatal_getenv.patch
new file mode 100644
index 0000000000..4c705ad86b
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/920-specs_nonfatal_getenv.patch
@@ -0,0 +1,15 @@
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -8828,8 +8828,10 @@ getenv_spec_function (int argc, const ch
+
+ value = getenv (argv[0]);
+ if (!value)
+- fatal_error (input_location,
+- "environment variable %qs not defined", argv[0]);
++ {
++ warning (input_location, "environment variable %qs not defined", argv[0]);
++ value = "";
++ }
+
+ /* We have to escape every character of the environment variable so
+ they are not interpreted as active spec characters. A
diff --git a/toolchain/gcc/patches/5.5.0/930-fix-mips-noexecstack.patch b/toolchain/gcc/patches/5.5.0/930-fix-mips-noexecstack.patch
new file mode 100644
index 0000000000..c05844d2e4
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/930-fix-mips-noexecstack.patch
@@ -0,0 +1,111 @@
+From da45b3fde60095756f5f6030f6012c23a3d34429 Mon Sep 17 00:00:00 2001
+From: Andrew McDonnell <bugs@andrewmcdonnell.net>
+Date: Fri, 3 Oct 2014 19:09:00 +0930
+Subject: Add .note.GNU-stack section
+
+See http://lists.busybox.net/pipermail/uclibc/2014-October/048671.html
+Below copied from https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02430.html
+
+Re: [Patch, MIPS] Add .note.GNU-stack section
+
+ From: Steve Ellcey <sellcey at mips dot com>
+
+On Wed, 2014-09-10 at 10:15 -0700, Eric Christopher wrote:
+>
+>
+> On Wed, Sep 10, 2014 at 9:27 AM, <pinskia@gmail.com> wrote:
+
+> This works except you did not update the assembly files in
+> libgcc or glibc. We (Cavium) have the same patch in our tree
+> for a few released versions.
+
+> Mind just checking yours in then Andrew?
+
+> Thanks!
+> -eric
+
+I talked to Andrew about what files he changed in GCC and created and
+tested this new patch. Andrew also mentioned changing some assembly
+files in glibc but I don't see any use of '.section .note.GNU-stack' in
+any assembly files in glibc (for any platform) so I wasn't planning on
+creating a glibc to add them to mips glibc assembly language files.
+
+OK to check in this patch?
+
+Steve Ellcey
+sellcey@mips.com
+
+
+
+2014-09-26 Steve Ellcey <sellcey@mips.com>
+---
+ gcc/config/mips/mips.c | 3 +++
+ libgcc/config/mips/crti.S | 4 ++++
+ libgcc/config/mips/crtn.S | 3 +++
+ libgcc/config/mips/mips16.S | 4 ++++
+ libgcc/config/mips/vr4120-div.S | 4 ++++
+ 5 files changed, 18 insertions(+)
+
+--- a/gcc/config/mips/mips.c
++++ b/gcc/config/mips/mips.c
+@@ -19629,6 +19629,9 @@ mips_lra_p (void)
+ #undef TARGET_LRA_P
+ #define TARGET_LRA_P mips_lra_p
+
++#undef TARGET_ASM_FILE_END
++#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
++
+ struct gcc_target targetm = TARGET_INITIALIZER;
+
+ #include "gt-mips.h"
+--- a/libgcc/config/mips/crti.S
++++ b/libgcc/config/mips/crti.S
+@@ -21,6 +21,10 @@ a copy of the GCC Runtime Library Except
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
++
++/* An executable stack is *not* required for these functions. */
++ .section .note.GNU-stack,"",%progbits
++
+ /* 4 slots for argument spill area. 1 for cpreturn, 1 for stack.
+ Return spill offset of 40 and 20. Aligned to 16 bytes for n32. */
+
+--- a/libgcc/config/mips/crtn.S
++++ b/libgcc/config/mips/crtn.S
+@@ -21,6 +21,9 @@ a copy of the GCC Runtime Library Except
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
++/* An executable stack is *not* required for these functions. */
++ .section .note.GNU-stack,"",%progbits
++
+ /* 4 slots for argument spill area. 1 for cpreturn, 1 for stack.
+ Return spill offset of 40 and 20. Aligned to 16 bytes for n32. */
+
+--- a/libgcc/config/mips/mips16.S
++++ b/libgcc/config/mips/mips16.S
+@@ -48,6 +48,10 @@ see the files COPYING3 and COPYING.RUNTI
+ values using the soft-float calling convention, but do the actual
+ operation using the hard floating point instructions. */
+
++/* An executable stack is *not* required for these functions. */
++ .section .note.GNU-stack,"",%progbits
++ .previous
++
+ #if defined _MIPS_SIM && (_MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABIO64)
+
+ /* This file contains 32-bit assembly code. */
+--- a/libgcc/config/mips/vr4120-div.S
++++ b/libgcc/config/mips/vr4120-div.S
+@@ -26,6 +26,10 @@ see the files COPYING3 and COPYING.RUNTI
+ -mfix-vr4120. div and ddiv do not give the correct result when one
+ of the operands is negative. */
+
++/* An executable stack is *not* required for these functions. */
++ .section .note.GNU-stack,"",%progbits
++ .previous
++
+ .set nomips16
+
+ #define DIV \
diff --git a/toolchain/gcc/patches/5.5.0/931-fix-MIPS-softfloat-build-issue.patch b/toolchain/gcc/patches/5.5.0/931-fix-MIPS-softfloat-build-issue.patch
new file mode 100644
index 0000000000..9ac0939eb0
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/931-fix-MIPS-softfloat-build-issue.patch
@@ -0,0 +1,167 @@
+From 2b46f9187b6f994fc450628a7cd97fc703dd23e0 Mon Sep 17 00:00:00 2001
+From: BangLang Huang <banglang.huang@foxmail.com>
+Date: Wed, 9 Nov 2016 10:36:49 +0800
+Subject: [PATCH] fix MIPS softfloat build issue
+
+ This patch is backport from github/libffi #272
+
+Signed-off-by: BangLang Huang <banglang.huang@foxmail.com>
+---
+ libffi/src/mips/n32.S | 17 +++++++++++++++++
+ libffi/src/mips/o32.S | 17 +++++++++++++++++
+ 2 files changed, 34 insertions(+)
+
+--- a/libffi/src/mips/n32.S
++++ b/libffi/src/mips/n32.S
+@@ -107,6 +107,16 @@ loadregs:
+
+ REG_L t6, 3*FFI_SIZEOF_ARG($fp) # load the flags word into t6.
+
++#ifdef __mips_soft_float
++ REG_L a0, 0*FFI_SIZEOF_ARG(t9)
++ REG_L a1, 1*FFI_SIZEOF_ARG(t9)
++ REG_L a2, 2*FFI_SIZEOF_ARG(t9)
++ REG_L a3, 3*FFI_SIZEOF_ARG(t9)
++ REG_L a4, 4*FFI_SIZEOF_ARG(t9)
++ REG_L a5, 5*FFI_SIZEOF_ARG(t9)
++ REG_L a6, 6*FFI_SIZEOF_ARG(t9)
++ REG_L a7, 7*FFI_SIZEOF_ARG(t9)
++#else
+ and t4, t6, ((1<<FFI_FLAG_BITS)-1)
+ REG_L a0, 0*FFI_SIZEOF_ARG(t9)
+ beqz t4, arg1_next
+@@ -193,6 +203,7 @@ arg7_next:
+ arg8_doublep:
+ l.d $f19, 7*FFI_SIZEOF_ARG(t9)
+ arg8_next:
++#endif
+
+ callit:
+ # Load the function pointer
+@@ -214,6 +225,7 @@ retint:
+ b epilogue
+
+ retfloat:
++#ifndef __mips_soft_float
+ bne t6, FFI_TYPE_FLOAT, retdouble
+ jal t9
+ REG_L t4, 4*FFI_SIZEOF_ARG($fp)
+@@ -272,6 +284,7 @@ retstruct_f_d:
+ s.s $f0, 0(t4)
+ s.d $f2, 8(t4)
+ b epilogue
++#endif
+
+ retstruct_d_soft:
+ bne t6, FFI_TYPE_STRUCT_D_SOFT, retstruct_f_soft
+@@ -429,6 +442,7 @@ ffi_closure_N32:
+ REG_S a6, A6_OFF2($sp)
+ REG_S a7, A7_OFF2($sp)
+
++#ifndef __mips_soft_float
+ # Store all possible float/double registers.
+ s.d $f12, F12_OFF2($sp)
+ s.d $f13, F13_OFF2($sp)
+@@ -438,6 +452,7 @@ ffi_closure_N32:
+ s.d $f17, F17_OFF2($sp)
+ s.d $f18, F18_OFF2($sp)
+ s.d $f19, F19_OFF2($sp)
++#endif
+
+ # Call ffi_closure_mips_inner_N32 to do the real work.
+ LA t9, ffi_closure_mips_inner_N32
+@@ -458,6 +473,7 @@ cls_retint:
+ b cls_epilogue
+
+ cls_retfloat:
++#ifndef __mips_soft_float
+ bne v0, FFI_TYPE_FLOAT, cls_retdouble
+ l.s $f0, V0_OFF2($sp)
+ b cls_epilogue
+@@ -500,6 +516,7 @@ cls_retstruct_f_d:
+ l.s $f0, V0_OFF2($sp)
+ l.d $f2, V1_OFF2($sp)
+ b cls_epilogue
++#endif
+
+ cls_retstruct_small2:
+ REG_L v0, V0_OFF2($sp)
+--- a/libffi/src/mips/o32.S
++++ b/libffi/src/mips/o32.S
+@@ -82,13 +82,16 @@ sixteen:
+
+ ADDU $sp, 4 * FFI_SIZEOF_ARG # adjust $sp to new args
+
++#ifndef __mips_soft_float
+ bnez t0, pass_d # make it quick for int
++#endif
+ REG_L a0, 0*FFI_SIZEOF_ARG($sp) # just go ahead and load the
+ REG_L a1, 1*FFI_SIZEOF_ARG($sp) # four regs.
+ REG_L a2, 2*FFI_SIZEOF_ARG($sp)
+ REG_L a3, 3*FFI_SIZEOF_ARG($sp)
+ b call_it
+
++#ifndef __mips_soft_float
+ pass_d:
+ bne t0, FFI_ARGS_D, pass_f
+ l.d $f12, 0*FFI_SIZEOF_ARG($sp) # load $fp regs from args
+@@ -130,6 +133,7 @@ pass_f_d:
+ # bne t0, FFI_ARGS_F_D, call_it
+ l.s $f12, 0*FFI_SIZEOF_ARG($sp) # load $fp regs from args
+ l.d $f14, 2*FFI_SIZEOF_ARG($sp) # passing double and float
++#endif
+
+ call_it:
+ # Load the function pointer
+@@ -158,14 +162,23 @@ retfloat:
+ bne t2, FFI_TYPE_FLOAT, retdouble
+ jalr t9
+ REG_L t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
++#ifndef __mips_soft_float
+ s.s $f0, 0(t0)
++#else
++ REG_S v0, 0(t0)
++#endif
+ b epilogue
+
+ retdouble:
+ bne t2, FFI_TYPE_DOUBLE, noretval
+ jalr t9
+ REG_L t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
++#ifndef __mips_soft_float
+ s.d $f0, 0(t0)
++#else
++ REG_S v1, 4(t0)
++ REG_S v0, 0(t0)
++#endif
+ b epilogue
+
+ noretval:
+@@ -261,9 +274,11 @@ $LCFI7:
+ li $13, 1 # FFI_O32
+ bne $16, $13, 1f # Skip fp save if FFI_O32_SOFT_FLOAT
+
++#ifndef __mips_soft_float
+ # Store all possible float/double registers.
+ s.d $f12, FA_0_0_OFF2($fp)
+ s.d $f14, FA_1_0_OFF2($fp)
++#endif
+ 1:
+ # Call ffi_closure_mips_inner_O32 to do the work.
+ la t9, ffi_closure_mips_inner_O32
+@@ -281,6 +296,7 @@ $LCFI7:
+ li $13, 1 # FFI_O32
+ bne $16, $13, 1f # Skip fp restore if FFI_O32_SOFT_FLOAT
+
++#ifndef __mips_soft_float
+ li $9, FFI_TYPE_FLOAT
+ l.s $f0, V0_OFF2($fp)
+ beq $8, $9, closure_done
+@@ -288,6 +304,7 @@ $LCFI7:
+ li $9, FFI_TYPE_DOUBLE
+ l.d $f0, V0_OFF2($fp)
+ beq $8, $9, closure_done
++#endif
+ 1:
+ REG_L $3, V1_OFF2($fp)
+ REG_L $2, V0_OFF2($fp)
diff --git a/toolchain/gcc/patches/5.5.0/940-no-clobber-stamp-bits.patch b/toolchain/gcc/patches/5.5.0/940-no-clobber-stamp-bits.patch
new file mode 100644
index 0000000000..21463a3055
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/940-no-clobber-stamp-bits.patch
@@ -0,0 +1,11 @@
+--- a/libstdc++-v3/include/Makefile.in
++++ b/libstdc++-v3/include/Makefile.in
+@@ -1422,7 +1422,7 @@ stamp-bits: ${bits_headers}
+ @$(STAMP) stamp-bits
+
+ stamp-bits-sup: stamp-bits ${bits_sup_headers}
+- @-cd ${bits_builddir} && $(LN_S) $? . 2>/dev/null
++ @-cd ${bits_builddir} && $(LN_S) $(filter-out stamp-bits,$?) . 2>/dev/null
+ @$(STAMP) stamp-bits-sup
+
+ stamp-c_base: ${c_base_headers}
diff --git a/toolchain/gcc/patches/5.5.0/950-cpp_file_path_translation.patch b/toolchain/gcc/patches/5.5.0/950-cpp_file_path_translation.patch
new file mode 100644
index 0000000000..b67940897e
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/950-cpp_file_path_translation.patch
@@ -0,0 +1,182 @@
+Forward ported from attachment to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47047
+
+--- a/gcc/c-family/c-opts.c
++++ b/gcc/c-family/c-opts.c
+@@ -581,6 +581,10 @@ c_common_handle_option (size_t scode, co
+ add_path (xstrdup (arg), SYSTEM, 0, true);
+ break;
+
++ case OPT_iremap:
++ add_cpp_remap_path (arg);
++ break;
++
+ case OPT_iwithprefix:
+ add_prefixed_path (arg, SYSTEM);
+ break;
+--- a/gcc/c-family/c.opt
++++ b/gcc/c-family/c.opt
+@@ -1528,6 +1528,10 @@ iquote
+ C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs)
+ -iquote <dir> Add <dir> to the end of the quote include path
+
++iremap
++C ObjC C++ ObjC++ Joined Separate
++-iremap <src:dst> Convert <src> to <dst> if it occurs as prefix in __FILE__.
++
+ iwithprefix
+ C ObjC C++ ObjC++ Joined Separate
+ -iwithprefix <dir> Add <dir> to the end of the system include path
+--- a/gcc/doc/cpp.texi
++++ b/gcc/doc/cpp.texi
+@@ -4441,6 +4441,7 @@ without notice.
+ @c man begin SYNOPSIS
+ cpp [@option{-D}@var{macro}[=@var{defn}]@dots{}] [@option{-U}@var{macro}]
+ [@option{-I}@var{dir}@dots{}] [@option{-iquote}@var{dir}@dots{}]
++ [@option{-iremap}@var{src}:@var{dst}]
+ [@option{-W}@var{warn}@dots{}]
+ [@option{-M}|@option{-MM}] [@option{-MG}] [@option{-MF} @var{filename}]
+ [@option{-MP}] [@option{-MQ} @var{target}@dots{}]
+--- a/gcc/doc/cppopts.texi
++++ b/gcc/doc/cppopts.texi
+@@ -532,6 +532,12 @@ Search @var{dir} only for header files r
+ If @var{dir} begins with @code{=}, then the @code{=} will be replaced
+ by the sysroot prefix; see @option{--sysroot} and @option{-isysroot}.
+
++@item -iremap @var{src}:@var{dst}
++@opindex iremap
++Replace the prefix @var{src} in __FILE__ with @var{dst} at expansion time.
++This option can be specified more than once. Processing stops at the first
++match.
++
+ @item -fdirectives-only
+ @opindex fdirectives-only
+ When preprocessing, handle directives, but do not expand macros.
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -494,8 +494,8 @@ Objective-C and Objective-C++ Dialects}.
+ @item Directory Options
+ @xref{Directory Options,,Options for Directory Search}.
+ @gccoptlist{-B@var{prefix} -I@var{dir} -iplugindir=@var{dir} @gol
+--iquote@var{dir} -L@var{dir} -specs=@var{file} -I- @gol
+---sysroot=@var{dir} --no-sysroot-suffix}
++-iquote@var{dir} -iremap@var{src}:@var{dst} -L@var{dir} -specs=@var{file} @gol
++-I- --sysroot=@var{dir} --no-sysroot-suffix}
+
+ @item Machine Dependent Options
+ @xref{Submodel Options,,Hardware Models and Configurations}.
+@@ -11485,6 +11485,12 @@ be searched for header files only for th
+ "@var{file}"}; they are not searched for @code{#include <@var{file}>},
+ otherwise just like @option{-I}.
+
++@item -iremap @var{src}:@var{dst}
++@opindex iremap
++Replace the prefix @var{src} in __FILE__ with @var{dst} at expansion time.
++This option can be specified more than once. Processing stops at the first
++match.
++
+ @item -L@var{dir}
+ @opindex L
+ Add directory @var{dir} to the list of directories to be searched
+--- a/libcpp/include/cpplib.h
++++ b/libcpp/include/cpplib.h
+@@ -751,6 +751,9 @@ extern void cpp_set_lang (cpp_reader *,
+ /* Set the include paths. */
+ extern void cpp_set_include_chains (cpp_reader *, cpp_dir *, cpp_dir *, int);
+
++/* Provide src:dst pair for __FILE__ remapping. */
++extern void add_cpp_remap_path (const char *);
++
+ /* Call these to get pointers to the options, callback, and deps
+ structures for a given reader. These pointers are good until you
+ call cpp_finish on that reader. You can either edit the callbacks
+--- a/libcpp/macro.c
++++ b/libcpp/macro.c
+@@ -224,6 +224,64 @@ static const char * const monthnames[] =
+ "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+ };
+
++static size_t remap_pairs;
++static char **remap_src;
++static char **remap_dst;
++
++void
++add_cpp_remap_path (const char *arg)
++{
++ const char *arg_dst;
++ size_t len;
++
++ arg_dst = strchr(arg, ':');
++ if (arg_dst == NULL)
++ {
++ fprintf(stderr, "Invalid argument for -iremap\n");
++ exit(1);
++ }
++
++ len = arg_dst - arg;
++ ++arg_dst;
++
++ remap_src = (char **) xrealloc(remap_src, sizeof(char *) * (remap_pairs + 1));
++ remap_dst = (char **) xrealloc(remap_dst, sizeof(char *) * (remap_pairs + 1));
++
++ remap_src[remap_pairs] = (char *) xmalloc(len + 1);
++ memcpy(remap_src[remap_pairs], arg, len);
++ remap_src[remap_pairs][len] = '\0';
++ remap_dst[remap_pairs] = xstrdup(arg_dst);
++ ++remap_pairs;
++}
++
++static const char *
++cpp_remap_file (const char *arg, char **tmp_name)
++{
++ char *result;
++ size_t i, len;
++
++ for (i = 0; i < remap_pairs; ++i)
++ {
++ len = strlen (remap_src[i]);
++ if (strncmp (remap_src[i], arg, len))
++ continue;
++ if (arg[len] == '\0')
++ return xstrdup (remap_dst[i]);
++ if (arg[len] != '/')
++ continue;
++ arg += len;
++ len = strlen (remap_dst[i]);
++ result = (char *) xmalloc (len + strlen (arg) + 1);
++ memcpy(result, remap_dst[i], len);
++ strcpy(result + len, arg);
++ *tmp_name = result;
++
++ return result;
++ }
++
++ return arg;
++}
++
+ /* Helper function for builtin_macro. Returns the text generated by
+ a builtin macro. */
+ const uchar *
+@@ -286,6 +344,7 @@ _cpp_builtin_macro_text (cpp_reader *pfi
+ {
+ unsigned int len;
+ const char *name;
++ char *tmp_name = NULL;
+ uchar *buf;
+
+ if (node->value.builtin == BT_FILE)
+@@ -297,6 +356,7 @@ _cpp_builtin_macro_text (cpp_reader *pfi
+ if (!name)
+ abort ();
+ }
++ name = cpp_remap_file (name, &tmp_name);
+ len = strlen (name);
+ buf = _cpp_unaligned_alloc (pfile, len * 2 + 3);
+ result = buf;
+@@ -304,6 +364,7 @@ _cpp_builtin_macro_text (cpp_reader *pfi
+ buf = cpp_quote_string (buf + 1, (const unsigned char *) name, len);
+ *buf++ = '"';
+ *buf = '\0';
++ free (tmp_name);
+ }
+ break;
+
diff --git a/toolchain/gcc/patches/5.5.0/960-go_libm.patch b/toolchain/gcc/patches/5.5.0/960-go_libm.patch
new file mode 100644
index 0000000000..d16b0200c0
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/960-go_libm.patch
@@ -0,0 +1,11 @@
+--- a/gcc/go/Make-lang.in
++++ b/gcc/go/Make-lang.in
+@@ -74,7 +74,7 @@ go_OBJS = $(GO_OBJS) go/gospec.o
+
+ go1$(exeext): $(GO_OBJS) attribs.o $(BACKEND) $(LIBDEPS)
+ +$(LLINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
+- $(GO_OBJS) attribs.o $(BACKEND) $(LIBS) $(BACKENDLIBS)
++ $(GO_OBJS) attribs.o $(BACKEND) $(LIBS) $(BACKENDLIBS) -lm
+
+ # Documentation.
+
diff --git a/toolchain/gcc/patches/5.5.0/970-warn_bug.patch b/toolchain/gcc/patches/5.5.0/970-warn_bug.patch
new file mode 100644
index 0000000000..2c5cf9be20
--- /dev/null
+++ b/toolchain/gcc/patches/5.5.0/970-warn_bug.patch
@@ -0,0 +1,11 @@
+--- a/libgo/runtime/mprof.goc
++++ b/libgo/runtime/mprof.goc
+@@ -403,7 +403,7 @@ func ThreadCreateProfile(p Slice) (n int
+
+ func Stack(b Slice, all bool) (n int) {
+ byte *pc, *sp;
+- bool enablegc;
++ bool enablegc = false; /* workaround GCC bug #36550 */
+
+ sp = runtime_getcallersp(&b);
+ pc = (byte*)(uintptr)runtime_getcallerpc(&b);
--
2.25.1
Reference in New Issue View Git Blame Copy Permalink