[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PULL 10/40] bsd-user/signal.c: Implement cpu_loop_exit_sigsegv
From: |
Warner Losh |
Subject: |
[PULL 10/40] bsd-user/signal.c: Implement cpu_loop_exit_sigsegv |
Date: |
Mon, 31 Jan 2022 12:56:06 -0700 |
First attempt at implementing cpu_loop_exit_sigsegv, mostly copied from
linux-user version of this function.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
bsd-user/signal.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/bsd-user/signal.c b/bsd-user/signal.c
index 1206d0d728c..12de0e2dea4 100644
--- a/bsd-user/signal.c
+++ b/bsd-user/signal.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "qemu.h"
#include "signal-common.h"
+#include "hw/core/tcg-cpu-ops.h"
/*
* Stubbed out routines until we merge signal support from bsd-user
@@ -63,9 +64,17 @@ void process_pending_signals(CPUArchState *cpu_env)
void cpu_loop_exit_sigsegv(CPUState *cpu, target_ulong addr,
MMUAccessType access_type, bool maperr, uintptr_t
ra)
{
- qemu_log_mask(LOG_UNIMP, "No signal support for SIGSEGV\n");
- /* unreachable */
- abort();
+ const struct TCGCPUOps *tcg_ops = CPU_GET_CLASS(cpu)->tcg_ops;
+
+ if (tcg_ops->record_sigsegv) {
+ tcg_ops->record_sigsegv(cpu, addr, access_type, maperr, ra);
+ }
+
+ force_sig_fault(TARGET_SIGSEGV,
+ maperr ? TARGET_SEGV_MAPERR : TARGET_SEGV_ACCERR,
+ addr);
+ cpu->exception_index = EXCP_INTERRUPT;
+ cpu_loop_exit_restore(cpu, ra);
}
void cpu_loop_exit_sigbus(CPUState *cpu, target_ulong addr,
--
2.33.1
- [PULL 00/40] Bsd user arm 2022q1 patches, Warner Losh, 2022/01/31
- [PULL 01/40] bsd-user: Complete FreeBSD siginfo, Warner Losh, 2022/01/31
- [PULL 06/40] bsd-user: Bring in docs from linux-user for signal_pending, Warner Losh, 2022/01/31
- [PULL 10/40] bsd-user/signal.c: Implement cpu_loop_exit_sigsegv,
Warner Losh <=
- [PULL 07/40] bsd-user/arm/target_arch_cpu.h: Move EXCP_ATOMIC to match linux-user, Warner Losh, 2022/01/31
- [PULL 36/40] bsd-user/signal.c: implement do_sigaction, Warner Losh, 2022/01/31
- [PULL 37/40] bsd-user/signal.c: do_sigaltstack, Warner Losh, 2022/01/31
- [PULL 29/40] bsd-user/signal.c: Fill in queue_signal, Warner Losh, 2022/01/31
- [PULL 35/40] bsd-user/signal.c: implement do_sigreturn, Warner Losh, 2022/01/31
- [PULL 04/40] bsd-user/arm/signal.c: get_mcontext should zero vfp data, Warner Losh, 2022/01/31
- [PULL 19/40] bsd-user/host/arm/host-signal.h: Implement host_signal_*, Warner Losh, 2022/01/31
- [PULL 11/40] bsd-user/signal.c: implement cpu_loop_exit_sigbus, Warner Losh, 2022/01/31
- [PULL 05/40] bsd-user: Remove vestiges of signal queueing code, Warner Losh, 2022/01/31
- [PULL 12/40] bsd-user/arm/arget_arch_cpu.h: Move EXCP_DEBUG and EXCP_BKPT together, Warner Losh, 2022/01/31