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[PATCH v6 60/66] linux-user: Handle BUS_ADRALN in host_signal_handler
From: |
Richard Henderson |
Subject: |
[PATCH v6 60/66] linux-user: Handle BUS_ADRALN in host_signal_handler |
Date: |
Sat, 30 Oct 2021 10:16:29 -0700 |
Handle BUS_ADRALN via cpu_loop_exit_sigbus, but allow other SIGBUS
si_codes to continue into the host-to-guest signal conversion code.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
linux-user/signal.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/linux-user/signal.c b/linux-user/signal.c
index df2c8678d0..81c45bfce9 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -860,6 +860,9 @@ static void host_signal_handler(int host_sig, siginfo_t
*info, void *puc)
cpu_loop_exit_sigsegv(cpu, guest_addr, access_type, maperr, pc);
} else {
sigprocmask(SIG_SETMASK, &uc->uc_sigmask, NULL);
+ if (info->si_code == BUS_ADRALN) {
+ cpu_loop_exit_sigbus(cpu, guest_addr, access_type, pc);
+ }
}
sync_sig = true;
--
2.25.1
- [PATCH v6 52/66] target/s390x: Implement s390x_cpu_record_sigbus, (continued)
- [PATCH v6 52/66] target/s390x: Implement s390x_cpu_record_sigbus, Richard Henderson, 2021/10/30
- [PATCH v6 44/66] target/alpha: Implement alpha_cpu_record_sigbus, Richard Henderson, 2021/10/30
- [PATCH v6 46/66] linux-user/hppa: Remove EXCP_UNALIGN handling, Richard Henderson, 2021/10/30
- [PATCH v6 51/66] linux-user/ppc: Remove POWERPC_EXCP_ALIGN handling, Richard Henderson, 2021/10/30
- [PATCH v6 42/66] hw/core: Add TCGCPUOps.record_sigbus, Richard Henderson, 2021/10/30
- [PATCH v6 43/66] linux-user: Add cpu_loop_exit_sigbus, Richard Henderson, 2021/10/30
- [PATCH v6 50/66] target/ppc: Restrict ppc_cpu_do_unaligned_access to sysemu, Richard Henderson, 2021/10/30
- [PATCH v6 49/66] target/ppc: Set fault address in ppc_cpu_do_unaligned_access, Richard Henderson, 2021/10/30
- [PATCH v6 59/66] tcg: Add helper_unaligned_{ld, st} for user-only sigbus, Richard Henderson, 2021/10/30
- [PATCH v6 57/66] accel/tcg: Report unaligned atomics for user-only, Richard Henderson, 2021/10/30
- [PATCH v6 60/66] linux-user: Handle BUS_ADRALN in host_signal_handler,
Richard Henderson <=
- [PATCH v6 56/66] target/sparc: Set fault address in sparc_cpu_do_unaligned_access, Richard Henderson, 2021/10/30
- [PATCH v6 62/66] linux-user: Disable more prctl subcodes, Richard Henderson, 2021/10/30
- [PATCH v6 54/66] target/sparc: Remove DEBUG_UNALIGNED, Richard Henderson, 2021/10/30
- [PATCH v6 53/66] target/sh4: Set fault address in superh_cpu_do_unaligned_access, Richard Henderson, 2021/10/30
- [PATCH v6 65/66] target/hppa: Implement prctl_unalign_sigbus, Richard Henderson, 2021/10/30
- [PATCH v6 48/66] target/ppc: Move SPR_DSISR setting to powerpc_excp, Richard Henderson, 2021/10/30
- [PATCH v6 58/66] accel/tcg: Report unaligned load/store for user-only, Richard Henderson, 2021/10/30
- [PATCH v6 63/66] linux-user: Add code for PR_GET/SET_UNALIGN, Richard Henderson, 2021/10/30
- [PATCH v6 47/66] target/microblaze: Do not set MO_ALIGN for user-only, Richard Henderson, 2021/10/30
- [PATCH v6 55/66] target/sparc: Split out build_sfsr, Richard Henderson, 2021/10/30