motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-07-27 04:13:53 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

gdbstub: Implement qGDBServerVersion packet

Browse source 
This commit adds support for the `qGDBServerVersion` packet to the qemu
gdbstub  which could be used by clients to detect the QEMU version
(and, e.g., use a workaround for known bugs).

This packet is not documented/standarized by GDB but it was implemented
by LLDB gdbstub [0] and is helpful for projects like Pwndbg [1].

This has been implemented by Patryk, who I included in Co-authored-by
and who asked me to send the patch.

[0] https://lldb.llvm.org/resources/lldbgdbremote.html#qgdbserverversion
[1] https://github.com/pwndbg/pwndbg/issues/2648

Co-authored-by: Patryk 'patryk4815' Sondej <patryk.sondej@gmail.com>
Signed-off-by: Dominik 'Disconnect3d' Czarnota <dominik.b.czarnota@gmail.com>
Message-Id: <20250403191340.53343-1-dominik.b.czarnota@gmail.com>
[AJB: fix include, checkpatch linewrap]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250603110204.838117-17-alex.bennee@linaro.org>
This commit is contained in:
Dominik 'Disconnect3d' Czarnota 2025-06-03 12:02:03 +01:00 • committed by Alex Bennée
parent 3bb69b1953
commit b2654598b3
1 changed files with 17 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

17
gdbstub/gdbstub.c
View file

@ -28,6 +28,7 @@
#include "qemu/cutils.h"
#include "qemu/module.h"
#include "qemu/error-report.h"
#include "qemu/target-info.h"
#include "trace.h"
#include "exec/gdbstub.h"
#include "gdbstub/commands.h"
@ -1597,6 +1598,18 @@ static void handle_query_threads(GArray *params, void *user_ctx)
gdbserver_state.query_cpu = gdb_next_attached_cpu(gdbserver_state.query_cpu);
}
static void handle_query_gdb_server_version(GArray *params, void *user_ctx)
{
#if defined(CONFIG_USER_ONLY)
g_string_printf(gdbserver_state.str_buf, "name:qemu-%s;version:%s;",
target_name(), QEMU_VERSION);
#else
g_string_printf(gdbserver_state.str_buf, "name:qemu-system-%s;version:%s;",
target_name(), QEMU_VERSION);
#endif
gdb_put_strbuf();
}
static void handle_query_first_threads(GArray *params, void *user_ctx)
{
gdbserver_state.query_cpu = gdb_first_attached_cpu();
@ -1842,6 +1855,10 @@ static const GdbCmdParseEntry gdb_gen_query_table[] = {
.handler = handle_query_threads,
.cmd = "sThreadInfo",
},
{
.handler = handle_query_gdb_server_version,
.cmd = "GDBServerVersion",
},
{
.handler = handle_query_first_threads,
.cmd = "fThreadInfo",