From dd6e8af6ba1b8a95a7f1dc7422e5ea4ccc7fbd93 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Tue, 6 Jan 2015 07:59:04 -0500 Subject: powerpc: Fix compiler warning on some syscalls MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit GCC 5.0 emits an warning when using sizeof on array function parameters and powerpc internal syscall macros add a check for such cases. More specifically, on powerpc64 and powerpc32 sysdep.h: if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 8) \ __illegally_sized_syscall_arg3 (); \ And for sysdeps/unix/sysv/linux/utimensat.c build GCC emits: error: ‘sizeof’ on array function parameter ‘tsp’ will return size of ‘const struct timespec *’ This patch uses the address of first struct member instead of the struct itself in syscall macro. --- sysdeps/unix/sysv/linux/utimensat.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'sysdeps/unix/sysv/linux/utimensat.c') diff --git a/sysdeps/unix/sysv/linux/utimensat.c b/sysdeps/unix/sysv/linux/utimensat.c index 5a5dec7f8e..81b565f2ea 100644 --- a/sysdeps/unix/sysv/linux/utimensat.c +++ b/sysdeps/unix/sysv/linux/utimensat.c @@ -35,7 +35,8 @@ utimensat (int fd, const char *file, const struct timespec tsp[2], return -1; } #ifdef __NR_utimensat - return INLINE_SYSCALL (utimensat, 4, fd, file, tsp, flags); + /* Avoid implicit array coercion in syscall macros. */ + return INLINE_SYSCALL (utimensat, 4, fd, file, &tsp[0], flags); #else __set_errno (ENOSYS); return -1; -- cgit v1.2.3-70-g09d2