From: Warner Losh <imp@bsdimp.com>
To: qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>,
Kyle Evans <kevans@freebsd.org>,
Richard Henderson <richard.henderson@linaro.org>,
def@FreeBSD.org, jrtc27@FreeBSD.org, Warner Losh <imp@bsdimp.com>
Subject: [PATCH v3 12/40] bsd-user/arm/arget_arch_cpu.h: Move EXCP_DEBUG and EXCP_BKPT together
Date: Fri, 28 Jan 2022 16:27:37 -0700 [thread overview]
Message-ID: <20220128232805.86191-13-imp@bsdimp.com> (raw)
In-Reply-To: <20220128232805.86191-1-imp@bsdimp.com>
Implement EXCP_DEBUG and EXCP_BKPT the same, as is done in
linux-user. The prior adjustment of register 15 isn't needed, so remove
that. Remove a redunant comment (that code in FreeBSD never handled
break points). It's unclear why BKPT was an alias for system calls,
but FreeBSD doesn't do that today.
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/arm/target_arch_cpu.h | 22 ++--------------------
1 file changed, 2 insertions(+), 20 deletions(-)
diff --git a/bsd-user/arm/target_arch_cpu.h b/bsd-user/arm/target_arch_cpu.h
index b7f728fd667..05b19ce6119 100644
--- a/bsd-user/arm/target_arch_cpu.h
+++ b/bsd-user/arm/target_arch_cpu.h
@@ -65,19 +65,7 @@ static inline void target_cpu_loop(CPUARMState *env)
}
break;
case EXCP_SWI:
- case EXCP_BKPT:
{
- /*
- * system call
- * See arm/arm/trap.c cpu_fetch_syscall_args()
- */
- if (trapnr == EXCP_BKPT) {
- if (env->thumb) {
- env->regs[15] += 2;
- } else {
- env->regs[15] += 4;
- }
- }
n = env->regs[7];
if (bsd_type == target_freebsd) {
int ret;
@@ -172,14 +160,8 @@ static inline void target_cpu_loop(CPUARMState *env)
queue_signal(env, info.si_signo, &info);
break;
case EXCP_DEBUG:
- {
-
- info.si_signo = TARGET_SIGTRAP;
- info.si_errno = 0;
- info.si_code = TARGET_TRAP_BRKPT;
- info.si_addr = env->exception.vaddress;
- queue_signal(env, info.si_signo, &info);
- }
+ case EXCP_BKPT:
+ force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->regs[15]);
break;
case EXCP_YIELD:
/* nothing to do here for user-mode, just resume guest code */
--
2.33.1
next prev parent reply other threads:[~2022-01-28 23:42 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-28 23:27 [PATCH v3 00/40] bsd-user: upstream signal implementation Warner Losh
2022-01-28 23:27 ` [PATCH v3 01/40] bsd-user: Complete FreeBSD siginfo Warner Losh
2022-01-28 23:27 ` [PATCH v3 02/40] bsd-user: Create setup_sigframe_arch to setup sigframe context Warner Losh
2022-01-28 23:27 ` [PATCH v3 03/40] bsd-user/arm/signal.c: Implement setup_sigframe_arch for arm Warner Losh
2022-01-28 23:27 ` [PATCH v3 04/40] bsd-user/arm/signal.c: get_mcontext should zero vfp data Warner Losh
2022-01-28 23:27 ` [PATCH v3 05/40] bsd-user: Remove vestiges of signal queueing code Warner Losh
2022-01-28 23:27 ` [PATCH v3 06/40] bsd-user: Bring in docs from linux-user for signal_pending Warner Losh
2022-01-28 23:27 ` [PATCH v3 07/40] bsd-user/arm/target_arch_cpu.h: Move EXCP_ATOMIC to match linux-user Warner Losh
2022-01-28 23:27 ` [PATCH v3 08/40] bsd-user/signal.c: implement force_sig_fault Warner Losh
2022-01-28 23:27 ` [PATCH v3 09/40] bsd-user/signal-common.h: Move signal functions prototypes to here Warner Losh
2022-01-28 23:27 ` [PATCH v3 10/40] bsd-user/signal.c: Implement cpu_loop_exit_sigsegv Warner Losh
2022-01-28 23:27 ` [PATCH v3 11/40] bsd-user/signal.c: implement cpu_loop_exit_sigbus Warner Losh
2022-01-28 23:27 ` Warner Losh [this message]
2022-01-28 23:27 ` [PATCH v3 13/40] bsd-user/arm/target_arch_cpu.h: Correct code pointer Warner Losh
2022-01-28 23:27 ` [PATCH v3 14/40] bsd-user/arm/target_arch_cpu.h: Use force_sig_fault for EXCP_UDEF Warner Losh
2022-01-28 23:27 ` [PATCH v3 15/40] bsd-user/arm/target_arch_cpu.h: Implement data faults Warner Losh
2022-01-28 23:27 ` [PATCH v3 16/40] bsd-user/signal.c: implement abstract target / host signal translation Warner Losh
2022-01-28 23:27 ` [PATCH v3 17/40] bsd-user/signal.c: Implement signal_init() Warner Losh
2022-01-28 23:27 ` [PATCH v3 18/40] bsd-user/signal.c: Add si_type argument to queue_signal Warner Losh
2022-01-28 23:27 ` [PATCH v3 19/40] bsd-user/host/arm/host-signal.h: Implement host_signal_* Warner Losh
2022-01-28 23:27 ` [PATCH v3 20/40] bsd-user/host/i386/host-signal.h: " Warner Losh
2022-01-28 23:27 ` [PATCH v3 21/40] bsd-user/host/x86_64/host-signal.h: " Warner Losh
2022-01-28 23:27 ` [PATCH v3 22/40] bsd-user: Add host signals to the build Warner Losh
2022-01-28 23:27 ` [PATCH v3 23/40] bsd-user: Add trace events for bsd-user Warner Losh
2022-01-28 23:27 ` [PATCH v3 24/40] bsd-user/signal.c: host_to_target_siginfo_noswap Warner Losh
2022-01-28 23:27 ` [PATCH v3 25/40] bsd-user/signal.c: Implement rewind_if_in_safe_syscall Warner Losh
2022-01-28 23:27 ` [PATCH v3 26/40] bsd-user/signal.c: Implement host_signal_handler Warner Losh
2022-01-28 23:27 ` [PATCH v3 27/40] bsd-user/strace.c: print_taken_signal Warner Losh
2022-01-28 23:27 ` [PATCH v3 28/40] bsd-user/signal.c: Implement dump_core_and_abort Warner Losh
2022-01-28 23:27 ` [PATCH v3 29/40] bsd-user/signal.c: Fill in queue_signal Warner Losh
2022-01-28 23:27 ` [PATCH v3 30/40] bsd-user/signal.c: sigset manipulation routines Warner Losh
2022-01-28 23:27 ` [PATCH v3 31/40] bsd-user/signal.c: setup_frame Warner Losh
2022-01-28 23:27 ` [PATCH v3 32/40] bsd-user/signal.c: handle_pending_signal Warner Losh
2022-01-28 23:27 ` [PATCH v3 33/40] bsd-user/signal.c: tswap_siginfo Warner Losh
2022-01-28 23:27 ` [PATCH v3 34/40] bsd-user/signal.c: process_pending_signals Warner Losh
2022-01-28 23:28 ` [PATCH v3 35/40] bsd-user/signal.c: implement do_sigreturn Warner Losh
2022-01-30 21:14 ` Richard Henderson
2022-01-28 23:28 ` [PATCH v3 36/40] bsd-user/signal.c: implement do_sigaction Warner Losh
2022-01-30 21:19 ` Richard Henderson
2022-01-30 21:34 ` Warner Losh
2022-01-28 23:28 ` [PATCH v3 37/40] bsd-user/signal.c: do_sigaltstack Warner Losh
2022-01-28 23:28 ` [PATCH v3 38/40] MAINTAINERS: Add tests/vm/*bsd to the list to get reviews on Warner Losh
2022-01-28 23:28 ` [PATCH v3 39/40] bsd-user: Rename arg name for target_cpu_reset to env Warner Losh
2022-01-28 23:28 ` [PATCH v3 40/40] bsd-user/freebsd/target_os_ucontext.h: Prefer env as arg name for CPUArchState args Warner Losh
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