Silence warning when building on macOS AArch64:
C compiler for the host machine: clang (clang 17.0.0 "Apple clang version
17.0.0 (clang-1700.4.4.1)")
Host machine cpu: aarch64
...
In file included from ../../tcg/tcg.c:41:
In file included from include/tcg/tcg-op-common.h:12:
In file included from include/exec/helper-proto-common.h:10:
In file included from include/qemu/atomic128.h:62:
host/include/aarch64/host/atomic128-cas.h.inc:72:22: warning: variable 'tmpl'
is uninitialized when used here [-Wuninitialized]
72 | [tmpl] "r"(tmpl), [tmph] "r"(tmph)
| ^~~~
host/include/aarch64/host/atomic128-cas.h.inc:61:30: note: initialize the
variable 'tmpl' to silence this warning
61 | uint64_t oldl, oldh, tmpl, tmph;
| ^
| = 0
host/include/aarch64/host/atomic128-cas.h.inc:72:40: warning: variable 'tmph'
is uninitialized when used here [-Wuninitialized]
72 | [tmpl] "r"(tmpl), [tmph] "r"(tmph)
| ^~~~
host/include/aarch64/host/atomic128-cas.h.inc:61:36: note: initialize the
variable 'tmph' to silence this warning
61 | uint64_t oldl, oldh, tmpl, tmph;
| ^
| = 0
host/include/aarch64/host/atomic128-cas.h.inc:92:22: warning: variable 'tmpl'
is uninitialized when used here [-Wuninitialized]
92 | [tmpl] "r"(tmpl), [tmph] "r"(tmph)
| ^~~~
host/include/aarch64/host/atomic128-cas.h.inc:81:30: note: initialize the
variable 'tmpl' to silence this warning
81 | uint64_t oldl, oldh, tmpl, tmph;
| ^
| = 0
host/include/aarch64/host/atomic128-cas.h.inc:92:40: warning: variable 'tmph'
is uninitialized when used here [-Wuninitialized]
92 | [tmpl] "r"(tmpl), [tmph] "r"(tmph)
| ^~~~
host/include/aarch64/host/atomic128-cas.h.inc:81:36: note: initialize the
variable 'tmph' to silence this warning
81 | uint64_t oldl, oldh, tmpl, tmph;
| ^
| = 0
4 warnings generated.
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
---
host/include/aarch64/host/atomic128-cas.h.inc | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/host/include/aarch64/host/atomic128-cas.h.inc
b/host/include/aarch64/host/atomic128-cas.h.inc
index aec27df1820..1334f467871 100644
--- a/host/include/aarch64/host/atomic128-cas.h.inc
+++ b/host/include/aarch64/host/atomic128-cas.h.inc
@@ -58,7 +58,7 @@ static inline Int128 atomic16_xchg(Int128 *ptr, Int128 new)
static inline Int128 atomic16_fetch_and(Int128 *ptr, Int128 new)
{
uint64_t newl = int128_getlo(new), newh = int128_gethi(new);
- uint64_t oldl, oldh, tmpl, tmph;
+ uint64_t oldl, oldh, tmpl = 0, tmph = 0;
uint32_t tmp;
asm("0: ldaxp %[oldl], %[oldh], %[mem]\n\t"
@@ -78,7 +78,7 @@ static inline Int128 atomic16_fetch_and(Int128 *ptr, Int128
new)
static inline Int128 atomic16_fetch_or(Int128 *ptr, Int128 new)
{
uint64_t newl = int128_getlo(new), newh = int128_gethi(new);
- uint64_t oldl, oldh, tmpl, tmph;
+ uint64_t oldl, oldh, tmpl = 0, tmph = 0;
uint32_t tmp;
asm("0: ldaxp %[oldl], %[oldh], %[mem]\n\t"
--
2.51.0
