This is v7, with the additional fix for gcc 4.2, as on Centos 6.
r~ The following changes since commit da158a86c407fa7b9da848b571356a26809d8df9: Merge remote-tracking branch 'remotes/berrange/tags/pull-qcrypto-2016-10-20-1' into staging (2016-10-20 14:46:19 +0100) are available in the git repository at: git://github.com/rth7680/qemu.git tags/pull-atomic-20161022 for you to fetch changes up to 278c5beb29ef8b6747a7c9bde403e9fe90cdad9c: target-alpha: Emulate LL/SC using cmpxchg helpers (2016-10-20 11:00:46 -0700) ---------------------------------------------------------------- cmpxchg atomic operations ---------------------------------------------------------------- Alex Bennée (1): linux-user: enable parallel code generation on clone Emilio G. Cota (18): atomics: add atomic_xor atomics: add atomic_op_fetch variants target-i386: emulate LOCK'ed cmpxchg using cmpxchg helpers target-i386: emulate LOCK'ed OP instructions using atomic helpers target-i386: emulate LOCK'ed INC using atomic helper target-i386: emulate LOCK'ed NOT using atomic helper target-i386: emulate LOCK'ed NEG using cmpxchg helper target-i386: emulate LOCK'ed XADD using atomic helper target-i386: emulate LOCK'ed BTX ops using atomic helpers target-i386: emulate XCHG using atomic helper target-i386: remove helper_lock() tests: add atomic_add-bench target-arm: emulate LL/SC using cmpxchg helpers target-arm: emulate SWP with atomic_xchg helper target-arm: emulate aarch64's LL/SC using cmpxchg helpers linux-user: remove handling of ARM's EXCP_STREX linux-user: remove handling of aarch64's EXCP_STREX target-arm: remove EXCP_STREX + cpu_exclusive_{test, info} Richard Henderson (16): exec: Avoid direct references to Int128 parts int128: Use __int128 if available int128: Add int128_make128 tcg: Add EXCP_ATOMIC cputlb: Replace SHIFT with DATA_SIZE cputlb: Move probe_write out of softmmu_template.h cputlb: Remove includes from softmmu_template.h cputlb: Move most of iotlb code out of line cputlb: Tidy some macros tcg: Add atomic helpers tcg: Add atomic128 helpers tcg: Add CONFIG_ATOMIC64 tcg: Emit barriers with parallel_cpus target-arm: Rearrange aa32 load and store functions target-alpha: Introduce MMU_PHYS_IDX target-alpha: Emulate LL/SC using cmpxchg helpers Makefile.objs | 2 +- Makefile.target | 1 + atomic_template.h | 215 +++++++++++++++++++++++++ configure | 62 +++++++- cpu-exec-common.c | 6 + cpu-exec.c | 30 ++++ cpus.c | 2 + cputlb.c | 203 ++++++++++++++++++++++-- exec.c | 4 +- include/exec/cpu-all.h | 1 + include/exec/exec-all.h | 1 + include/qemu-common.h | 1 + include/qemu/atomic.h | 67 ++++++-- include/qemu/int128.h | 171 +++++++++++++++++++- linux-user/main.c | 312 ++++++------------------------------ linux-user/syscall.c | 8 + softmmu_template.h | 104 ++---------- target-alpha/cpu.h | 22 +-- target-alpha/helper.c | 14 +- target-alpha/helper.h | 9 -- target-alpha/machine.c | 2 - target-alpha/mem_helper.c | 73 --------- target-alpha/translate.c | 148 +++++++++-------- target-arm/cpu.h | 17 +- target-arm/helper-a64.c | 113 +++++++++++++ target-arm/helper-a64.h | 2 + target-arm/internals.h | 4 +- target-arm/translate-a64.c | 106 ++++++------- target-arm/translate.c | 344 +++++++++++++++------------------------- target-arm/translate.h | 4 - target-i386/helper.h | 4 +- target-i386/mem_helper.c | 153 ++++++++++++------ target-i386/translate.c | 386 +++++++++++++++++++++++++++++---------------- tcg-runtime.c | 74 +++++++-- tcg/tcg-op.c | 354 +++++++++++++++++++++++++++++++++++++++-- tcg/tcg-op.h | 44 ++++++ tcg/tcg-runtime.h | 109 +++++++++++++ tcg/tcg.h | 85 ++++++++++ tests/.gitignore | 1 + tests/Makefile.include | 4 +- tests/atomic_add-bench.c | 163 +++++++++++++++++++ tests/test-int128.c | 22 +-- translate-all.c | 1 + 43 files changed, 2353 insertions(+), 1095 deletions(-) create mode 100644 atomic_template.h create mode 100644 tests/atomic_add-bench.c