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tools/nolibc: drop wait4() support

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Not all architectures implement the wait4() syscall. It can be
implemented in terms of the waitid() syscall, but that would require
some rework of the other wait-related functions in wait.h.

As wait4() is non-standard and deprecated, remove it.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20250821-nolibc-enosys-v1-7-4b63f2caaa89@weissschuh.net
This commit is contained in:
Thomas Weißschuh
2025-09-01 20:48:40 +02:00
parent 61a3cf7934
commit 4c2ef951cf
1 changed files with 0 additions and 17 deletions
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tools/include/nolibc/sys/wait.h
-17
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@@ -16,27 +16,10 @@
/*
* pid_t wait(int *status);
* pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage);
* pid_t waitpid(pid_t pid, int *status, int options);
* int waitid(idtype_t idtype, id_t id, siginfo_t *infop, int options);
*/
static __attribute__((unused))
pid_t sys_wait4(pid_t pid, int *status, int options, struct rusage *rusage)
{
#ifdef __NR_wait4
return my_syscall4(__NR_wait4, pid, status, options, rusage);
#else
return __nolibc_enosys(__func__, pid, status, options, rusage);
#endif
}
static __attribute__((unused))
pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage)
{
return __sysret(sys_wait4(pid, status, options, rusage));
}
static __attribute__((unused))
int sys_waitid(int which, pid_t pid, siginfo_t *infop, int options, struct rusage *rusage)
{