Messages in this thread Patch in this message | | | From | Alejandro Colomar <> | Subject | [PATCH] restart_syscall.2: SYNOPSIS: Fix restart_syscall() return type | Date | Mon, 23 Nov 2020 21:34:46 +0100 |
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The Linux kernel uses 'long' instead of 'int' for the return type. As glibc provides no wrapper, use the same types the kernel uses.
$ grep -rn 'SYSCALL_DEFINE.*(restart_syscall' kernel/signal.c:2891:SYSCALL_DEFINE0(restart_syscall)
$ sed -n 2891,2895p kernel/signal.c SYSCALL_DEFINE0(restart_syscall) { struct restart_block *restart = ¤t->restart_block; return restart->fn(restart); }
$ grep -rn 'struct restart_block {' include/linux/restart_block.h:25:struct restart_block {
$ sed -n 25,56p include/linux/restart_block.h struct restart_block { long (*fn)(struct restart_block *); union { /* For futex_wait and futex_wait_requeue_pi */ struct { u32 __user *uaddr; u32 val; u32 flags; u32 bitset; u64 time; u32 __user *uaddr2; } futex; /* For nanosleep */ struct { clockid_t clockid; enum timespec_type type; union { struct __kernel_timespec __user *rmtp; struct old_timespec32 __user *compat_rmtp; }; u64 expires; } nanosleep; /* For poll */ struct { struct pollfd __user *ufds; int nfds; int has_timeout; unsigned long tv_sec; unsigned long tv_nsec; } poll; }; };
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com> --- man2/restart_syscall.2 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/man2/restart_syscall.2 b/man2/restart_syscall.2 index e7d96bd4d..21cc2df1d 100644 --- a/man2/restart_syscall.2 +++ b/man2/restart_syscall.2 @@ -34,7 +34,7 @@ .SH NAME restart_syscall \- restart a system call after interruption by a stop signal .SH SYNOPSIS -.B int restart_syscall(void); +.B long restart_syscall(void); .PP .IR Note : There is no glibc wrapper for this system call; see NOTES. -- 2.29.2
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