diff options
author | Stefan Hajnoczi <stefanha@redhat.com> | 2020-09-23 11:56:46 +0100 |
---|---|---|
committer | Stefan Hajnoczi <stefanha@redhat.com> | 2020-09-23 16:07:44 +0100 |
commit | d73415a315471ac0b127ed3fad45c8ec5d711de1 (patch) | |
tree | bae20b3a39968fdfb4340b1a39b533333a8e6fd0 /accel/tcg/atomic_template.h | |
parent | ed7db34b5aedba4487fd949b2e545eef954f093e (diff) |
qemu/atomic.h: rename atomic_ to qatomic_
clang's C11 atomic_fetch_*() functions only take a C11 atomic type
pointer argument. QEMU uses direct types (int, etc) and this causes a
compiler error when a QEMU code calls these functions in a source file
that also included <stdatomic.h> via a system header file:
$ CC=clang CXX=clang++ ./configure ... && make
../util/async.c:79:17: error: address argument to atomic operation must be a pointer to _Atomic type ('unsigned int *' invalid)
Avoid using atomic_*() names in QEMU's atomic.h since that namespace is
used by <stdatomic.h>. Prefix QEMU's APIs with 'q' so that atomic.h
and <stdatomic.h> can co-exist. I checked /usr/include on my machine and
searched GitHub for existing "qatomic_" users but there seem to be none.
This patch was generated using:
$ git grep -h -o '\<atomic\(64\)\?_[a-z0-9_]\+' include/qemu/atomic.h | \
sort -u >/tmp/changed_identifiers
$ for identifier in $(</tmp/changed_identifiers); do
sed -i "s%\<$identifier\>%q$identifier%g" \
$(git grep -I -l "\<$identifier\>")
done
I manually fixed line-wrap issues and misaligned rST tables.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200923105646.47864-1-stefanha@redhat.com>
Diffstat (limited to 'accel/tcg/atomic_template.h')
-rw-r--r-- | accel/tcg/atomic_template.h | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/accel/tcg/atomic_template.h b/accel/tcg/atomic_template.h index 26969487d6..0ff7f913e1 100644 --- a/accel/tcg/atomic_template.h +++ b/accel/tcg/atomic_template.h @@ -83,7 +83,7 @@ ABI_TYPE ATOMIC_NAME(cmpxchg)(CPUArchState *env, target_ulong addr, #if DATA_SIZE == 16 ret = atomic16_cmpxchg(haddr, cmpv, newv); #else - ret = atomic_cmpxchg__nocheck(haddr, cmpv, newv); + ret = qatomic_cmpxchg__nocheck(haddr, cmpv, newv); #endif ATOMIC_MMU_CLEANUP; atomic_trace_rmw_post(env, addr, info); @@ -131,7 +131,7 @@ ABI_TYPE ATOMIC_NAME(xchg)(CPUArchState *env, target_ulong addr, ATOMIC_MMU_IDX); atomic_trace_rmw_pre(env, addr, info); - ret = atomic_xchg__nocheck(haddr, val); + ret = qatomic_xchg__nocheck(haddr, val); ATOMIC_MMU_CLEANUP; atomic_trace_rmw_post(env, addr, info); return ret; @@ -147,7 +147,7 @@ ABI_TYPE ATOMIC_NAME(X)(CPUArchState *env, target_ulong addr, \ uint16_t info = trace_mem_build_info(SHIFT, false, 0, false, \ ATOMIC_MMU_IDX); \ atomic_trace_rmw_pre(env, addr, info); \ - ret = atomic_##X(haddr, val); \ + ret = qatomic_##X(haddr, val); \ ATOMIC_MMU_CLEANUP; \ atomic_trace_rmw_post(env, addr, info); \ return ret; \ @@ -182,10 +182,10 @@ ABI_TYPE ATOMIC_NAME(X)(CPUArchState *env, target_ulong addr, \ ATOMIC_MMU_IDX); \ atomic_trace_rmw_pre(env, addr, info); \ smp_mb(); \ - cmp = atomic_read__nocheck(haddr); \ + cmp = qatomic_read__nocheck(haddr); \ do { \ old = cmp; new = FN(old, val); \ - cmp = atomic_cmpxchg__nocheck(haddr, old, new); \ + cmp = qatomic_cmpxchg__nocheck(haddr, old, new); \ } while (cmp != old); \ ATOMIC_MMU_CLEANUP; \ atomic_trace_rmw_post(env, addr, info); \ @@ -230,7 +230,7 @@ ABI_TYPE ATOMIC_NAME(cmpxchg)(CPUArchState *env, target_ulong addr, #if DATA_SIZE == 16 ret = atomic16_cmpxchg(haddr, BSWAP(cmpv), BSWAP(newv)); #else - ret = atomic_cmpxchg__nocheck(haddr, BSWAP(cmpv), BSWAP(newv)); + ret = qatomic_cmpxchg__nocheck(haddr, BSWAP(cmpv), BSWAP(newv)); #endif ATOMIC_MMU_CLEANUP; atomic_trace_rmw_post(env, addr, info); @@ -280,7 +280,7 @@ ABI_TYPE ATOMIC_NAME(xchg)(CPUArchState *env, target_ulong addr, ATOMIC_MMU_IDX); atomic_trace_rmw_pre(env, addr, info); - ret = atomic_xchg__nocheck(haddr, BSWAP(val)); + ret = qatomic_xchg__nocheck(haddr, BSWAP(val)); ATOMIC_MMU_CLEANUP; atomic_trace_rmw_post(env, addr, info); return BSWAP(ret); @@ -296,7 +296,7 @@ ABI_TYPE ATOMIC_NAME(X)(CPUArchState *env, target_ulong addr, \ uint16_t info = trace_mem_build_info(SHIFT, false, MO_BSWAP, \ false, ATOMIC_MMU_IDX); \ atomic_trace_rmw_pre(env, addr, info); \ - ret = atomic_##X(haddr, BSWAP(val)); \ + ret = qatomic_##X(haddr, BSWAP(val)); \ ATOMIC_MMU_CLEANUP; \ atomic_trace_rmw_post(env, addr, info); \ return BSWAP(ret); \ @@ -329,10 +329,10 @@ ABI_TYPE ATOMIC_NAME(X)(CPUArchState *env, target_ulong addr, \ false, ATOMIC_MMU_IDX); \ atomic_trace_rmw_pre(env, addr, info); \ smp_mb(); \ - ldn = atomic_read__nocheck(haddr); \ + ldn = qatomic_read__nocheck(haddr); \ do { \ ldo = ldn; old = BSWAP(ldo); new = FN(old, val); \ - ldn = atomic_cmpxchg__nocheck(haddr, ldo, BSWAP(new)); \ + ldn = qatomic_cmpxchg__nocheck(haddr, ldo, BSWAP(new)); \ } while (ldo != ldn); \ ATOMIC_MMU_CLEANUP; \ atomic_trace_rmw_post(env, addr, info); \ |