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libbacktrace: use __has_attribute for fallthrough

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Also convert some FALLTHROUGH comments to ATTRIBUTE_FALLTHROUGH.

	* internal.h: Use __has_attribute to check for fallthrough
	attribute.
	* elf.c (elf_zstd_decompress): Use ATTRIBUTE_FALLTHROUGH rather
	than a FALLTHROUGH comment.
This commit is contained in:
Ian Lance Taylor
2024-07-18 11:34:09 -07:00
parent f37b51de9b
commit 7e2b7da3d6
2 changed files with 12 additions and 7 deletions
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14
elf.c
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@@ -4848,25 +4848,25 @@ elf_zstd_decompress (const unsigned char *pin, size_t sin,
{
case 8:
*pout++ = *plit++;
/* FALLTHROUGH */
ATTRIBUTE_FALLTHROUGH;
case 7:
*pout++ = *plit++;
/* FALLTHROUGH */
ATTRIBUTE_FALLTHROUGH;
case 6:
*pout++ = *plit++;
/* FALLTHROUGH */
ATTRIBUTE_FALLTHROUGH;
case 5:
*pout++ = *plit++;
/* FALLTHROUGH */
ATTRIBUTE_FALLTHROUGH;
case 4:
*pout++ = *plit++;
/* FALLTHROUGH */
ATTRIBUTE_FALLTHROUGH;
case 3:
*pout++ = *plit++;
/* FALLTHROUGH */
ATTRIBUTE_FALLTHROUGH;
case 2:
*pout++ = *plit++;
/* FALLTHROUGH */
ATTRIBUTE_FALLTHROUGH;
case 1:
*pout++ = *plit++;
break;