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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-04-25 19:53:11 -0700 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2021-05-15 21:43:23 +0200 |
| commit | 56384cf3adaeb15bab479be328605e301ae253f2 (patch) | |
| tree | 21e7e2d6cd96a0b2da2879ea30488b6e39845356 /linux-user/ppc/signal.c | |
| parent | 92bad948367c4b8a58f6bb81b45750f1d583f274 (diff) | |
| download | qemu-56384cf3adaeb15bab479be328605e301ae253f2.zip qemu-56384cf3adaeb15bab479be328605e301ae253f2.tar.gz qemu-56384cf3adaeb15bab479be328605e301ae253f2.tar.bz2 | |
linux-user: Use target_restore_altstack in all sigreturn
Note that target_restore_altstack uses the host memory
pointer that we have already verified, so TARGET_EFAULT
is not a possible return value.
Note that using -EFAULT was a bug.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210426025334.1168495-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user/ppc/signal.c')
| -rw-r--r-- | linux-user/ppc/signal.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/linux-user/ppc/signal.c b/linux-user/ppc/signal.c index bad38f8..b44d5ce 100644 --- a/linux-user/ppc/signal.c +++ b/linux-user/ppc/signal.c @@ -655,9 +655,7 @@ long do_rt_sigreturn(CPUPPCState *env) if (do_setcontext(&rt_sf->uc, env, 1)) goto sigsegv; - do_sigaltstack(rt_sf_addr - + offsetof(struct target_rt_sigframe, uc.tuc_stack), - 0, env->gpr[1]); + target_restore_altstack(&rt_sf->uc.tuc_stack, env->gpr[1]); unlock_user_struct(rt_sf, rt_sf_addr, 1); return -TARGET_QEMU_ESIGRETURN; |