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From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
	"Thomas Huth" <thuth@redhat.com>,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>,
	"Cornelia Huck" <cohuck@redhat.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Laurent Vivier" <laurent@vivier.eu>,
	"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	qemu-s390x@nongnu.org, qemu-arm@nongnu.org, qemu-ppc@nongnu.org,
	"Claudio Fontana" <cfontana@suse.de>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Alex Bennée" <alex.bennee@linaro.org>
Subject: [PATCH v4 18/28] gdbstub: Remove watchpoint dead code in gdbserver_fork()
Date: Wed,  3 Mar 2021 22:46:58 +0100	[thread overview]
Message-ID: <20210303214708.1727801-19-f4bug@amsat.org> (raw)
In-Reply-To: <20210303214708.1727801-1-f4bug@amsat.org>

gdbserver_fork() is only used in user emulation where we can not
use watchpoints because we need the softmmu slow path to detect
accesses to watchpointed memory. This code doesn't do anything as
declared as stubs in "hw/core/cpu.h". Drop it.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 gdbstub.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/gdbstub.c b/gdbstub.c
index 3ee40479b69..f3614ebcc7a 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -3349,7 +3349,6 @@ void gdbserver_fork(CPUState *cpu)
     close(gdbserver_state.fd);
     gdbserver_state.fd = -1;
     cpu_breakpoint_remove_all(cpu, BP_GDB);
-    cpu_watchpoint_remove_all(cpu, BP_GDB);
 }
 #else
 static int gdb_chr_can_receive(void *opaque)
-- 
2.26.2



  parent reply	other threads:[~2021-03-03 21:56 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-03 21:46 [PATCH v4 00/28] cpu: Introduce SysemuCPUOps structure, remove watchpoints from usermode Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 01/28] target: Set CPUClass::vmsd instead of DeviceClass::vmsd Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 02/28] cpu: Un-inline cpu_get_phys_page_debug and cpu_asidx_from_attrs Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 03/28] cpu: Introduce cpu_virtio_is_big_endian() Philippe Mathieu-Daudé
2021-03-03 22:08   ` Michael S. Tsirkin
2021-03-03 22:15     ` Michael S. Tsirkin
2021-03-03 22:18       ` Richard Henderson
2021-03-03 22:24         ` Richard Henderson
2021-03-04  7:51     ` Greg Kurz
2021-04-22 10:33       ` Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 04/28] cpu: Directly use cpu_write_elf*() fallback handlers in place Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 05/28] cpu: Directly use get_paging_enabled() " Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 06/28] cpu: Directly use get_memory_mapping() " Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 07/28] cpu: Introduce SysemuCPUOps structure Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 08/28] cpu: Move CPUClass::vmsd to SysemuCPUOps Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 09/28] cpu: Move CPUClass::virtio_is_big_endian " Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 10/28] cpu: Move CPUClass::get_crash_info " Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 11/28] cpu: Move CPUClass::write_elf* " Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 12/28] cpu: Move CPUClass::asidx_from_attrs " Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 13/28] cpu: Move CPUClass::get_phys_page_debug " Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 14/28] cpu: Move CPUClass::get_memory_mapping " Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 15/28] cpu: Move CPUClass::get_paging_enabled " Philippe Mathieu-Daudé
2021-03-03 21:46 ` [PATCH v4 16/28] cpu: Restrict "hw/core/sysemu-cpu-ops.h" to target/cpu.c Philippe Mathieu-Daudé
2021-03-03 22:27   ` Taylor Simpson
2021-03-03 21:46 ` [PATCH v4 17/28] linux-user: Remove dead code Philippe Mathieu-Daudé
2021-05-15 19:25   ` Laurent Vivier
2021-03-03 21:46 ` Philippe Mathieu-Daudé [this message]
2021-03-03 21:46 ` [PATCH v4 19/28] target/arm/internals: Fix code style for checkpatch.pl Philippe Mathieu-Daudé
2021-03-03 21:47 ` [PATCH v4 20/28] target/arm: Move code blocks around Philippe Mathieu-Daudé
2021-03-03 21:47 ` [PATCH v4 21/28] target/arm: Refactor some function bodies Philippe Mathieu-Daudé
2021-03-03 21:47 ` [PATCH v4 22/28] target/arm: Restrict watchpoint code to system emulation Philippe Mathieu-Daudé
2021-03-03 22:40   ` Richard Henderson
2021-03-03 21:47 ` [PATCH v4 23/28] target/i386: " Philippe Mathieu-Daudé
2021-03-03 21:47 ` [PATCH v4 24/28] target/xtensa: " Philippe Mathieu-Daudé
2021-03-03 21:47 ` [PATCH v4 25/28] accel/tcg/cpu-exec: " Philippe Mathieu-Daudé
2021-03-03 21:47 ` [PATCH v4 26/28] cpu: Remove watchpoint stubs for user emulation Philippe Mathieu-Daudé
2021-03-03 23:28   ` Richard Henderson
2021-03-03 21:47 ` [PATCH v4 27/28] cpu: Fix code style for checkpatch.pl Philippe Mathieu-Daudé
2021-03-03 21:47 ` [PATCH v4 28/28] cpu: Move sysemu specific declarations to 'sysemu-cpu-ops.h' Philippe Mathieu-Daudé
2021-03-04  1:52 ` [PATCH v4 00/28] cpu: Introduce SysemuCPUOps structure, remove watchpoints from usermode Richard Henderson
2021-04-22 10:39   ` Philippe Mathieu-Daudé

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