From 4ef04a27c7cf81db13316ceb6e840527977a7787 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Mon, 26 May 2014 21:26:46 -0400 Subject: [PATCH] fix type of extended argument array to pselect6 syscall this only matters on x32 (and perhaps future 32-on-64 abis for other archs); otherwise the type is long anyway. the cast through uintptr_t prevents nonsensical "sign extension" of pointers, and follows the principle that uintptr_t is the canonical integer type to which pointer conversion is safe. --- src/select/pselect.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/select/pselect.c b/src/select/pselect.c index a19e153e..4e2d7b07 100644 --- a/src/select/pselect.c +++ b/src/select/pselect.c @@ -1,11 +1,12 @@ #include #include +#include #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, _NSIG/8 }; + syscall_arg_t data[2] = { (uintptr_t)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); -- 2.25.1