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Update bcheck for recent atomic change
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Browse Source 
The functions fetch_and_add_arm, fetch_and_add_arm64 and
fetch_and_add_riscv64 where removed with atomic change.

Replace the code in bcheck.c with call to atomic_fetch_add.
This commit is contained in:
herman ten brugge 2025-06-24 21:38:31 +02:00
parent 7f13f24e12
commit 32b597746c
1 changed files with 3 additions and 24 deletions
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27
lib/bcheck.c
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@ -22,6 +22,7 @@
#include <stdarg.h>
#include <string.h>
#include <setjmp.h>
#include <stdatomic.h>
#if !defined(__FreeBSD__) \
&& !defined(__FreeBSD_kernel__) \
@ -483,35 +484,13 @@ static void bound_not_found_warning(const char *file, const char *function,
dprintf(stderr, "%s%s, %s(): Not found %p\n", exec, file, function, ptr);
}
static void fetch_and_add(int* variable, int value)
{
#if defined __i386__ || defined __x86_64__
__asm__ volatile("lock; addl %0, %1"
: "+r" (value), "+m" (*variable) // input+output
: // No input-only
: "memory"
);
#elif defined __arm__
extern void fetch_and_add_arm(int* variable, int value);
fetch_and_add_arm(variable, value);
#elif defined __aarch64__
extern void fetch_and_add_arm64(int* variable, int value);
fetch_and_add_arm64(variable, value);
#elif defined __riscv
extern void fetch_and_add_riscv64(int* variable, int value);
fetch_and_add_riscv64(variable, value);
#else
*variable += value;
#endif
}
/* enable/disable checking. This can be used in signal handlers. */
void __bounds_checking (int no_check)
{
#if HAVE_TLS_FUNC || HAVE_TLS_VAR
NO_CHECKING_SET(NO_CHECKING_GET() + no_check);
#else
fetch_and_add (&no_checking, no_check);
atomic_fetch_add (&no_checking, no_check);
#endif
}
@ -528,7 +507,7 @@ void __bound_checking_unlock(void)
/* enable/disable checking. This can be used in signal handlers. */
void __bound_never_fatal (int neverfatal)
{
fetch_and_add (&never_fatal, neverfatal);
atomic_fetch_add (&never_fatal, neverfatal);
}
/* return '(p + offset)' for pointer arithmetic (a pointer can reach