From a2b0ff98a0d44259cc5f6bd7d3a3676ae9f8996a Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Mon, 23 Dec 2024 05:11:58 +0800 Subject: include/sys/cdefs.h: Add __attribute_optimization_barrier__ Add __attribute_optimization_barrier__ to disable inlining and cloning on a function. For Clang, expand it to __attribute__ ((optnone)) Otherwise, expand it to __attribute__ ((noinline, clone)) Co-Authored-By: H.J. Lu Reviewed-by: Sam James --- misc/tst-syscalls.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'misc') diff --git a/misc/tst-syscalls.c b/misc/tst-syscalls.c index d060b125c9..ac1e1014e1 100644 --- a/misc/tst-syscalls.c +++ b/misc/tst-syscalls.c @@ -37,7 +37,7 @@ struct Array static int error_count; -__attribute__ ((noclone, noinline)) +__attribute_optimization_barrier__ struct Array allocate (size_t bytes) { @@ -52,7 +52,7 @@ allocate (size_t bytes) return __extension__ (struct Array) {bytes, p}; } -__attribute__ ((noclone, noinline)) +__attribute_optimization_barrier__ void deallocate (struct Array b) { @@ -66,7 +66,7 @@ deallocate (struct Array b) } } -__attribute__ ((noclone, noinline)) +__attribute_optimization_barrier__ void * do_mmap (void *addr, size_t length) { @@ -74,7 +74,7 @@ do_mmap (void *addr, size_t length) MAP_PRIVATE | MAP_ANON, -1, 0); } -__attribute__ ((noclone, noinline)) +__attribute_optimization_barrier__ void * reallocate (struct Array b) { @@ -86,7 +86,7 @@ reallocate (struct Array b) return NULL; } -__attribute__ ((noclone, noinline)) +__attribute_optimization_barrier__ void protect (struct Array b) { @@ -104,7 +104,7 @@ protect (struct Array b) } } -__attribute__ ((noclone, noinline)) +__attribute_optimization_barrier__ ssize_t do_read (int fd, void *ptr, struct Array b) { @@ -116,7 +116,7 @@ do_read (int fd, void *ptr, struct Array b) return 0; } -__attribute__ ((noclone, noinline)) +__attribute_optimization_barrier__ ssize_t do_write (int fd, void *ptr, struct Array b) { -- cgit v1.2.3