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Fixup AArch32 errata printing framework

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The AArch32 assembly implementation of `print_errata_status` did not save
a register which was getting clobbered by a `get_cpu_ops_ptr`. This
patch fixes that.

Change-Id: Id0711e46b7c685a18a10328d4b513e952a5d860b
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
This commit is contained in:
Soby Mathew
2018-02-21 15:48:03 +00:00
parent 4535554e68
commit 7af7038e87
1 changed files with 3 additions and 2 deletions
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5
lib/cpus/aarch32/cpu_helpers.S
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@@ -206,7 +206,8 @@ endfunc cpu_rev_var_hs
*/
.globl print_errata_status
func print_errata_status
push {r4, lr}
/* r12 is pushed only for the sake of 8-byte stack alignment */
push {r4, r5, r12, lr}
#ifdef IMAGE_BL1
/*
* BL1 doesn't have per-CPU data. So retrieve the CPU operations
@@ -241,6 +242,6 @@ func print_errata_status
blxne r4
1:
#endif
pop {r4, pc}
pop {r4, r5, r12, pc}
endfunc print_errata_status
#endif