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aarch64: Ensure const and sign correctness

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Be const and sign correct by using a matching CIE augmentation type.
Use a builtin instead of relying <string.h> being included.

libgcc/ChangeLog:

	* config/aarch64/aarch64-unwind.h (aarch64_cie_signed_with_b_key):
	Use const unsigned type and a builtin.

Signed-off-by: Pekka Seppänen <pexu@gcc.mail.kapsi.fi>
This commit is contained in:
Pekka Seppänen 2023-09-20 19:41:01 +01:00 • committed by Richard Sandiford
parent c08ffa04d9
commit 0a59ff65df
1 changed files with 3 additions and 2 deletions
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5
libgcc/config/aarch64/aarch64-unwind.h
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@ -40,8 +40,9 @@ aarch64_cie_signed_with_b_key (struct _Unwind_Context *context)
const struct dwarf_cie *cie = get_cie (fde);
if (cie != NULL)
{
char *aug_str = cie->augmentation;
return strchr (aug_str, 'B') == NULL ? 0 : 1;
const unsigned char *aug_str = cie->augmentation;
return __builtin_strchr ((const char *) aug_str,
'B') == NULL ? 0 : 1;
}
}
return 0;