haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

qemu/atomic: Use macros for CONFIG_ATOMIC64

Browse source 
Clang warnings about questionable atomic usage get localized
to the inline function in atomic.h.  By using a macro, we get
the full traceback to the original use that caused the warning.

Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-07-11 08:46:37 -07:00
parent e77c8b8b8e
commit 952fd6710e
1 changed files with 9 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
include/qemu/atomic.h
View file

@ -457,26 +457,15 @@
/* Abstractions to access atomically (i.e. "once") i64/u64 variables */ /* Abstractions to access atomically (i.e. "once") i64/u64 variables */
#ifdef CONFIG_ATOMIC64 #ifdef CONFIG_ATOMIC64
static inline int64_t qatomic_read_i64(const int64_t *ptr) /* Use __nocheck because sizeof(void *) might be < sizeof(u64) */
{ #define qatomic_read_i64(P) \
/* use __nocheck because sizeof(void *) might be < sizeof(u64) */ _Generic(*(P), int64_t: qatomic_read__nocheck(P))
return qatomic_read__nocheck(ptr); #define qatomic_read_u64(P) \
} _Generic(*(P), uint64_t: qatomic_read__nocheck(P))
#define qatomic_set_i64(P, V) \
static inline uint64_t qatomic_read_u64(const uint64_t *ptr) _Generic(*(P), int64_t: qatomic_set__nocheck(P, V))
{ #define qatomic_set_u64(P, V) \
return qatomic_read__nocheck(ptr); _Generic(*(P), uint64_t: qatomic_set__nocheck(P, V))
}
static inline void qatomic_set_i64(int64_t *ptr, int64_t val)
{
qatomic_set__nocheck(ptr, val);
}
static inline void qatomic_set_u64(uint64_t *ptr, uint64_t val)
{
qatomic_set__nocheck(ptr, val);
}
static inline void qatomic64_init(void) static inline void qatomic64_init(void)
{ {