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| author | Timothy E Baldwin <T.E.Baldwin99@members.leeds.ac.uk> | 2016-05-12 18:47:34 +0100 |
|---|---|---|
| committer | Riku Voipio <riku.voipio@linaro.org> | 2016-05-27 14:49:49 +0300 |
| commit | c0bea68f9ea48f0dea7a06a259a613bfd3a7e35e (patch) | |
| tree | f46658f976a156b5e5b981a567cddf4582dd9df1 /linux-user/signal.c | |
| parent | 6db9d00e2f05db0dfcc1a4d8b811fdd40170c91c (diff) | |
| download | focaccia-qemu-c0bea68f9ea48f0dea7a06a259a613bfd3a7e35e.tar.gz focaccia-qemu-c0bea68f9ea48f0dea7a06a259a613bfd3a7e35e.zip | |
linux-user: Support for restarting system calls for SPARC targets
Update the SPARC main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * set all guest CPU state within signal.c code on sigreturn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-9-git-send-email-T.E.Baldwin99@members.leeds.ac.uk [PMM: Commit message tweaks; drop TARGET_USE_ERESTARTSYS define] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Diffstat (limited to 'linux-user/signal.c')
| -rw-r--r-- | linux-user/signal.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/linux-user/signal.c b/linux-user/signal.c index 14e58b05b2..e742347a26 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -2449,7 +2449,7 @@ long do_sigreturn(CPUSPARCState *env) goto segv_and_exit; } unlock_user_struct(sf, sf_addr, 0); - return env->regwptr[0]; + return -TARGET_QEMU_ESIGRETURN; segv_and_exit: unlock_user_struct(sf, sf_addr, 0); |