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| author | Richard Henderson <richard.henderson@linaro.org> | 2017-11-14 04:47:13 -0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2017-11-15 10:34:05 +0100 |
| commit | 3bdb5fcc9a08a9a47ce30c4e0c2d64c95190b49d (patch) | |
| tree | 19c373f674807956df497f8c934b4af921daa1f3 /target/arm/helper-a64.c | |
| parent | ec603b5584fa71213ef8f324fe89e4b27cc9d2bc (diff) | |
| download | qemu-3bdb5fcc9a08a9a47ce30c4e0c2d64c95190b49d.tar.gz | |
target/arm: Use helper_retaddr in stxp helpers
We use raw memory primitives along the !parallel_cpus paths in order to
simplify the endianness handling. Because of that, we did not benefit
from the generic changes to cpu_ldst_user_only_template.h.
The simplest fix is to manipulate helper_retaddr here.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/arm/helper-a64.c')
| -rw-r--r-- | target/arm/helper-a64.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c index d0e435ca4b..96a3ecf707 100644 --- a/target/arm/helper-a64.c +++ b/target/arm/helper-a64.c @@ -456,6 +456,8 @@ static uint64_t do_paired_cmpxchg64_le(CPUARMState *env, uint64_t addr, #ifdef CONFIG_USER_ONLY /* ??? Enforce alignment. */ uint64_t *haddr = g2h(addr); + + helper_retaddr = ra; o0 = ldq_le_p(haddr + 0); o1 = ldq_le_p(haddr + 1); oldv = int128_make128(o0, o1); @@ -465,6 +467,7 @@ static uint64_t do_paired_cmpxchg64_le(CPUARMState *env, uint64_t addr, stq_le_p(haddr + 0, int128_getlo(newv)); stq_le_p(haddr + 1, int128_gethi(newv)); } + helper_retaddr = 0; #else int mem_idx = cpu_mmu_index(env, false); TCGMemOpIdx oi0 = make_memop_idx(MO_LEQ | MO_ALIGN_16, mem_idx); @@ -523,6 +526,8 @@ static uint64_t do_paired_cmpxchg64_be(CPUARMState *env, uint64_t addr, #ifdef CONFIG_USER_ONLY /* ??? Enforce alignment. */ uint64_t *haddr = g2h(addr); + + helper_retaddr = ra; o1 = ldq_be_p(haddr + 0); o0 = ldq_be_p(haddr + 1); oldv = int128_make128(o0, o1); @@ -532,6 +537,7 @@ static uint64_t do_paired_cmpxchg64_be(CPUARMState *env, uint64_t addr, stq_be_p(haddr + 0, int128_gethi(newv)); stq_be_p(haddr + 1, int128_getlo(newv)); } + helper_retaddr = 0; #else int mem_idx = cpu_mmu_index(env, false); TCGMemOpIdx oi0 = make_memop_idx(MO_BEQ | MO_ALIGN_16, mem_idx); |