From c2eaf6c30d930b65a8bcf5f912ef8873a6f4eb20 Mon Sep 17 00:00:00 2001 From: Romain Naour Date: Fri, 24 May 2019 12:42:04 +0200 Subject: sparc: remove asm constraint uClibc-ng don't build with gcc 9.1 [1] due to a new check that "catch illegal asm constraint usage" [2]. gcc 9.1 print this error: "invalid hard register usage between earlyclobber operand and input operand" The asm constraint is present in uClibc since it support sparc (back in 2002)[3]. Note: There is no such constraint is Glibc counterpart code [4]. [1] https://gitlab.com/kubu93/toolchains-builder/-/jobs/205435757 [2] https://github.com/gcc-mirror/gcc/commit/b782636f28f5c378897c238081d28d7a4a6ca578 [3] https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/commit/?id=3b6d086531102b6d09ce852feb1e370d5dca3ce9 [4] +https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/sparc/sysdep.h;h=981b2a26b7a91093f821c97876 +e55bc4be2d9f8a;hb=HEAD --- libc/sysdeps/linux/sparc/bits/syscalls.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libc/sysdeps/linux/sparc/bits/syscalls.h b/libc/sysdeps/linux/sparc/bits/syscalls.h index 75af7a157..28edc0568 100644 --- a/libc/sysdeps/linux/sparc/bits/syscalls.h +++ b/libc/sysdeps/linux/sparc/bits/syscalls.h @@ -33,7 +33,7 @@ register long __g1 __asm__("g1") = sys_num; \ LOAD_ARGS_##nr(args) \ __asm__ __volatile__( __SYSCALL_STRING \ - : "=r" (__res), "=&r" (__o0) \ + : "=r" (__res), "=r" (__o0) \ : "1" (__o0) ASM_ARGS_##nr, "r" (__g1) \ : __SYSCALL_CLOBBERS ); \ } \ -- cgit v1.2.3