klibc-bot for Ben Hutchings
2021-Dec-27 21:33 UTC
[klibc] [klibc:master] s390: mmap: Change inline assembly to work with Clang
Commit-ID: df622860136f95868a36eae578482dc7b9687f50
Gitweb:
http://git.kernel.org/?p=libs/klibc/klibc.git;a=commit;h=df622860136f95868a36eae578482dc7b9687f50
Author: Ben Hutchings <ben at decadent.org.uk>
AuthorDate: Mon, 27 Dec 2021 19:48:29 +0100
Committer: Ben Hutchings <ben at decadent.org.uk>
CommitDate: Mon, 27 Dec 2021 19:48:29 +0100
[klibc] s390: mmap: Change inline assembly to work with Clang
Clang rejects the operand "%b1" to svc:
usr/klibc/arch/s390/mmap.c:61:3: error: invalid operand in inline asm: '
svc ${1:b}'
Since svc always takes an immediate operand, the "b" modifier is not
needed. After deleting it, both Clang and gcc generate the correct
instruction "svc 90".
Signed-off-by: Ben Hutchings <ben at decadent.org.uk>
---
usr/klibc/arch/s390/mmap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/usr/klibc/arch/s390/mmap.c b/usr/klibc/arch/s390/mmap.c
index 33312397..dfc5a845 100644
--- a/usr/klibc/arch/s390/mmap.c
+++ b/usr/klibc/arch/s390/mmap.c
@@ -58,7 +58,7 @@ void *mmap(void *addr, size_t len, int prot, int flags, int
fd, off_t offset)
unsigned long __res;
__asm__ __volatile__ (
- " svc %b1\n"
+ " svc %1\n"
: "=d" (__svcres)
: "i" (__NR_mmap),
"0" (__arg1)