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assert: Mark __assert_fail as cold

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This helps compilers split the codegen for setting up the arguments
(`__expression`, `__filename`, etc...) from the potentially hot cold
where the `assert` is to a presumably cold region on the assertion
failure path.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
Reviewed-by: Sam James <sam@gentoo.org>
This commit is contained in:
Noah Goldstein 2024-07-26 16:35:13 +08:00
parent 89cddc8a70
commit f6f9047459
1 changed files with 3 additions and 3 deletions
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6
assert/assert.h
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@ -66,18 +66,18 @@ __BEGIN_DECLS
/* This prints an "Assertion failed" message and aborts. */
extern void __assert_fail (const char *__assertion, const char *__file,
unsigned int __line, const char *__function)
__THROW __attribute__ ((__noreturn__));
__THROW __attribute__ ((__noreturn__)) __COLD;
/* Likewise, but prints the error text for ERRNUM. */
extern void __assert_perror_fail (int __errnum, const char *__file,
unsigned int __line, const char *__function)
__THROW __attribute__ ((__noreturn__));
__THROW __attribute__ ((__noreturn__)) __COLD;
/* The following is not at all used here but needed for standard
compliance. */
extern void __assert (const char *__assertion, const char *__file, int __line)
__THROW __attribute__ ((__noreturn__));
__THROW __attribute__ ((__noreturn__)) __COLD;
__END_DECLS