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| author | Romain Naour <romain.naour@gmail.com> | 2019-05-24 12:42:04 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2019-05-27 14:54:42 +0200 |
| commit | c2eaf6c30d930b65a8bcf5f912ef8873a6f4eb20 (patch) | |
| tree | 66f52217922c4884a5424cb2297a9a1c2bb47cd1 | |
| parent | 423e49023eeb9b93dcf335d7b03e86a44e584dc8 (diff) | |
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
| -rw-r--r-- | libc/sysdeps/linux/sparc/bits/syscalls.h | 2 |
1 files changed, 1 insertions, 1 deletions
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 ); \ } \ |