From d73415a315471ac0b127ed3fad45c8ec5d711de1 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Wed, 23 Sep 2020 11:56:46 +0100 Subject: qemu/atomic.h: rename atomic_ to qatomic_ MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 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 . Prefix QEMU's APIs with 'q' so that atomic.h and 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 '\/tmp/changed_identifiers $ for identifier in $(%q$identifier%g" \ $(git grep -I -l "\<$identifier\>") done I manually fixed line-wrap issues and misaligned rST tables. Signed-off-by: Stefan Hajnoczi Reviewed-by: Philippe Mathieu-Daudé Acked-by: Paolo Bonzini Message-Id: <20200923105646.47864-1-stefanha@redhat.com> --- hw/display/qxl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'hw/display') diff --git a/hw/display/qxl.c b/hw/display/qxl.c index 1187134..431c107 100644 --- a/hw/display/qxl.c +++ b/hw/display/qxl.c @@ -1908,7 +1908,7 @@ static void qxl_send_events(PCIQXLDevice *d, uint32_t events) /* * Older versions of Spice forgot to define the QXLRam struct * with the '__aligned__(4)' attribute. clang 7 and newer will - * thus warn that atomic_fetch_or(&d->ram->int_pending, ...) + * thus warn that qatomic_fetch_or(&d->ram->int_pending, ...) * might be a misaligned atomic access, and will generate an * out-of-line call for it, which results in a link error since * we don't currently link against libatomic. @@ -1928,7 +1928,7 @@ static void qxl_send_events(PCIQXLDevice *d, uint32_t events) #define ALIGNED_UINT32_PTR(P) ((uint32_t *)P) #endif - old_pending = atomic_fetch_or(ALIGNED_UINT32_PTR(&d->ram->int_pending), + old_pending = qatomic_fetch_or(ALIGNED_UINT32_PTR(&d->ram->int_pending), le_events); if ((old_pending & le_events) == le_events) { return; -- cgit v1.1