From: Paolo Bonzini <pbonzini@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH 54/66] add a header file for atomic operations
Date: Tue, 22 Oct 2013 06:45:47 +0100 [thread overview]
Message-ID: <5266110B.70901@redhat.com> (raw)
In-Reply-To: <CAFEAcA_dyCOoNgxsKksT2G_wbA-9sbCfHZ9Kx7HZrbnPDH9neQ@mail.gmail.com>
Il 21/10/2013 14:53, Peter Maydell ha scritto:
> Yes, using __sync_swap seems to work OK. Does clang on linux
> require the four-argument __atomic_exchange() or can we just
> make the #ifdef __clang__ come first in the #if ladder?
Please do that (change the ladder), it's definitely a good idea.
> http://libcxx.llvm.org/atomic_design_a.html suggests llvm/clang's
> __atomic_exchange() is three argument on all platforms, ie this
> isn't just a macos weirdness.
It's not. It's definitely a pity that GCC and LLVM disagree. :( Mystery...
Paolo
next prev parent reply other threads:[~2013-10-22 5:46 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-04 15:12 [Qemu-devel] [PULL 00/66] Memory API changes for 1.6: ownership, I/O ports, RCU preparation Paolo Bonzini
2013-07-04 15:12 ` [Qemu-devel] [PATCH 01/66] int128: optimize and add test cases Paolo Bonzini
2013-07-04 15:12 ` [Qemu-devel] [PATCH 02/66] scsi: keep device alive while it has requests Paolo Bonzini
2013-07-04 15:12 ` [Qemu-devel] [PATCH 03/66] dma: keep a device alive while it has SGLists Paolo Bonzini
2013-07-04 15:51 ` Jan Kiszka
2013-07-04 15:59 ` Jan Kiszka
2013-07-04 16:00 ` Paolo Bonzini
2013-07-04 16:17 ` Jan Kiszka
2013-07-04 15:13 ` [Qemu-devel] [PATCH 04/66] adlib: replace register_ioport* Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 05/66] applesmc: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 06/66] wdt_ib700: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 07/66] i82374: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 08/66] prep: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 09/66] vt82c686: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 10/66] Privatize register_ioport_read/write Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 11/66] isa: implement isa_is_ioport_assigned via memory_region_find Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 12/66] vmware-vga: Accept unaligned I/O accesses Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 13/66] xen: Mark fixed platform I/O as unaligned Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 14/66] ioport: Switch dispatching to memory core layer Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 15/66] ioport: Remove unused old dispatching services Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 16/66] vmport: Disentangle read handler type from portio Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 17/66] ioport: Move portio types to ioport.h Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 19/66] memory: destroy phys_sections one by one Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 20/66] exec: simplify destruction of the phys map Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 21/66] memory: add getter for owner Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 22/66] memory: add ref/unref Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 23/66] memory: introduce memory_region_present Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 24/66] memory: add ref/unref calls Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 25/66] exec: check MRU in qemu_ram_addr_from_host Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 26/66] exec: move qemu_ram_addr_from_host_nofail to cputlb.c Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 27/66] memory: return MemoryRegion from qemu_ram_addr_from_host Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 28/66] exec: reorganize address_space_map Paolo Bonzini
2013-07-08 8:21 ` Peter Maydell
2013-07-04 15:13 ` [Qemu-devel] [PATCH 29/66] memory: ref/unref memory across address_space_map/unmap Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 30/66] escc: rename struct to ESCCState Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 31/66] vga: pass owner to vga_init Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 32/66] vga: pass owner to vga_common_init Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 33/66] vga: pass owner to cirrus_init_common Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 34/66] vga: pass owner to vga_init_vbe Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 35/66] vga: pass owner to vga_init_io Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 36/66] vga: set owner in vga_update_memory_access Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 37/66] ne2000: pass device to ne2000_setup_io, use it as owner Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 38/66] vfio: pass device to vfio_mmap_bar and use it to set owner Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 39/66] spapr_iommu: pass device to spapr_tce_new_table " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 40/66] pam: pass device to init_pam " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 41/66] piolist: add owner argument to initialization functions and pass devices Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 42/66] hw/a*: pass owner to memory_region_init* functions Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 43/66] hw/block: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 44/66] hw/c*: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 45/66] hw/d*: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 46/66] hw/gpio: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 47/66] hw/i*: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 48/66] hw/m*: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 49/66] hw/n*: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 50/66] hw/p*: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 51/66] hw/s*: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 52/66] hw/t*: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 53/66] hw/[u-x]*: " Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 54/66] add a header file for atomic operations Paolo Bonzini
2013-10-20 16:20 ` Peter Maydell
2013-10-21 6:06 ` Paolo Bonzini
2013-10-21 13:53 ` Peter Maydell
2013-10-22 5:45 ` Paolo Bonzini [this message]
2013-07-04 15:13 ` [Qemu-devel] [PATCH 55/66] memory: access FlatView from a local variable Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 56/66] memory: use a new FlatView pointer on every topology update Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 57/66] memory: add reference counting to FlatView Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 58/66] qom: Use atomics for object refcounting Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 59/66] exec: change well-known physical sections to macros Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 60/66] exec: separate current memory map from the one being built Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 61/66] memory: move MemoryListener declaration earlier Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 62/66] exec: move listener from AddressSpaceDispatch to AddressSpace Paolo Bonzini
2013-07-04 15:13 ` [Qemu-devel] [PATCH 63/66] exec: separate current radix tree from the one being built Paolo Bonzini
2013-07-04 15:14 ` [Qemu-devel] [PATCH 64/66] exec: put memory map in AddressSpaceDispatch Paolo Bonzini
2013-07-04 15:14 ` [Qemu-devel] [PATCH 65/66] exec: remove cur_map Paolo Bonzini
2013-07-04 15:14 ` [Qemu-devel] [PATCH 66/66] exec: change some APIs to take AddressSpaceDispatch Paolo Bonzini
2013-07-04 15:52 ` [Qemu-devel] [PULL 00/66] Memory API changes for 1.6: ownership, I/O ports, RCU preparation Paolo Bonzini
2013-07-04 16:08 ` Paolo Bonzini
2013-07-08 13:20 ` Anthony Liguori
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