41 lines
1.9 KiB
Diff
41 lines
1.9 KiB
Diff
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From 75a1a2a9fec8a310a18ff7d63ead95f3a0d1b11b Mon Sep 17 00:00:00 2001
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From: Romain Naour <romain.naour@gmail.com>
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Date: Fri, 24 May 2019 12:42:04 +0200
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Subject: [PATCH] sparc: remove asm constraint
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uClibc-ng don't build with gcc 9.1 [1] due to a new check that
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"catch illegal asm constraint usage" [2].
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gcc 9.1 print this error:
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"invalid hard register usage between earlyclobber operand and input operand"
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The asm constraint is present in uClibc since it support sparc (back in 2002)[3].
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Note: There is no such constraint is Glibc counterpart code [4].
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[1] https://gitlab.com/kubu93/toolchains-builder/-/jobs/205435757
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[2] https://github.com/gcc-mirror/gcc/commit/b782636f28f5c378897c238081d28d7a4a6ca578
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[3] https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/commit/?id=3b6d086531102b6d09ce852feb1e370d5dca3ce9
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[4]
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+https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/sparc/sysdep.h;h=981b2a26b7a91093f821c97876
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+e55bc4be2d9f8a;hb=HEAD
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(cherry picked from commit c2eaf6c30d930b65a8bcf5f912ef8873a6f4eb20)
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Signed-off-by: Romain Naour <romain.naour@gmail.com>
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---
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libc/sysdeps/linux/sparc/bits/syscalls.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/libc/sysdeps/linux/sparc/bits/syscalls.h b/libc/sysdeps/linux/sparc/bits/syscalls.h
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index 75af7a157..28edc0568 100644
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--- a/libc/sysdeps/linux/sparc/bits/syscalls.h
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+++ b/libc/sysdeps/linux/sparc/bits/syscalls.h
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@@ -33,7 +33,7 @@
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register long __g1 __asm__("g1") = sys_num; \
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LOAD_ARGS_##nr(args) \
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__asm__ __volatile__( __SYSCALL_STRING \
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- : "=r" (__res), "=&r" (__o0) \
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+ : "=r" (__res), "=r" (__o0) \
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: "1" (__o0) ASM_ARGS_##nr, "r" (__g1) \
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: __SYSCALL_CLOBBERS ); \
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} \
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--
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2.21.0
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