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| author | Rich Felker <dalias@aerifal.cx> | 2013-03-26 23:07:31 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2013-03-26 23:07:31 -0400 |
| commit | ccc7b4c3a17ade90de71e1e0f44deebbffd646e6 (patch) | |
| tree | f2ebd7203d59fdcd3301136924e628b94917e2e5 /src/select | |
| parent | 00f1521fdd3f57c7a190550426537089fc24b9da (diff) | |
| download | musl-ccc7b4c3a17ade90de71e1e0f44deebbffd646e6.tar.gz | |
remove __SYSCALL_SSLEN arch macro in favor of using public _NSIG
the issue at hand is that many syscalls require as an argument the
kernel-ABI size of sigset_t, intended to allow the kernel to switch to
a larger sigset_t in the future. previously, each arch was defining
this size in syscall_arch.h, which was redundant with the definition
of _NSIG in bits/signal.h. as it's used in some not-quite-portable
application code as well, _NSIG is much more likely to be recognized
and understood immediately by someone reading the code, and it's also
shorter and less cluttered.
note that _NSIG is actually 65/129, not 64/128, but the division takes
care of throwing away the off-by-one part.
Diffstat (limited to 'src/select')
| -rw-r--r-- | src/select/pselect.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/select/pselect.c b/src/select/pselect.c index 50343fb7..a19e153e 100644 --- a/src/select/pselect.c +++ b/src/select/pselect.c @@ -1,10 +1,11 @@ #include <sys/select.h> +#include <signal.h> #include "syscall.h" #include "libc.h" int pselect(int n, fd_set *restrict rfds, fd_set *restrict wfds, fd_set *restrict efds, const struct timespec *restrict ts, const sigset_t *restrict mask) { - long data[2] = { (long)mask, __SYSCALL_SSLEN }; + long data[2] = { (long)mask, _NSIG/8 }; struct timespec ts_tmp; if (ts) ts_tmp = *ts; return syscall_cp(SYS_pselect6, n, rfds, wfds, efds, ts ? &ts_tmp : 0, data); |