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Port to musl: musl doesn't have execinfo.h.

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Change-Id: Idc2f18880581d3a2e67185becee8b77cfa5cdf04
Reviewed-on: https://chromium-review.googlesource.com/313388
Commit-Ready: Doug Evans <dje@google.com>
Tested-by: Doug Evans <dje@google.com>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Doug Evans
2015-11-19 15:57:23 -08:00
committed by chrome-bot
parent 7e0728dfca
commit 58cb8c532b
2 changed files with 20 additions and 0 deletions
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5
Makefile
View File

@@ -205,6 +205,11 @@ ifdef HAVE_MACOS
CFLAGS += -DHAVE_MACOS -Wno-deprecated-declarations
endif
# Musl doesn't have execinfo.h.
ifndef HAVE_MUSL
CFLAGS += -DHAVE_EXECINFO_H
endif
# And a few more default utilities
LD = ${CC}
CXX ?= g++

15
firmware/stub/vboot_api_stub_sf.c
View File

@@ -5,7 +5,12 @@
* Stub implementations of firmware-provided API functions.
*/
/* Musl doesn't have execinfo.h.
TODO(dje): Add a replacement (libunwind) if/when fnl needs it. */
#ifdef HAVE_EXECINFO_H
#include <execinfo.h>
#endif
#include <stdint.h>
#define _STUB_IMPLEMENTATION_
@@ -26,12 +31,15 @@ struct alloc_node {
struct alloc_node *next;
void *ptr;
size_t size;
#ifdef HAVE_EXECINFO_H
void *bt_buffer[MAX_STACK_LEVELS];
int bt_levels;
#endif
};
static struct alloc_node *alloc_head;
#ifdef HAVE_EXECINFO_H
static void print_stacktrace(void)
{
void *buffer[MAX_STACK_LEVELS];
@@ -40,6 +48,7 @@ static void print_stacktrace(void)
// print to stderr (fd = 2), and remove this function from the trace
backtrace_symbols_fd(buffer + 1, levels - 1, 2);
}
#endif
void *VbExMalloc(size_t size)
{
@@ -57,7 +66,9 @@ void *VbExMalloc(size_t size)
node->next = alloc_head;
node->ptr = p;
node->size = size;
#ifdef HAVE_EXECINFO_H
node->bt_levels = backtrace(node->bt_buffer, MAX_STACK_LEVELS);
#endif
alloc_head = node;
return p;
@@ -86,7 +97,9 @@ void VbExFree(void *ptr)
} else {
fprintf(stderr, "\n>>>>>> Invalid VbExFree() %p\n", ptr);
fflush(stderr);
#ifdef HAVE_EXECINFO_H
print_stacktrace();
#endif
/*
* Fall through and do the free() so we get normal error
* handling.
@@ -118,8 +131,10 @@ int vboot_api_stub_check_memory(void)
next = node->next;
fprintf(stderr, "\nptr=%p, size=%zd\n", node->ptr, node->size);
fflush(stderr);
#ifdef HAVE_EXECINFO_H
backtrace_symbols_fd(node->bt_buffer + 1, node->bt_levels - 1,
2);
#endif
free(node);
}