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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2024-02-07 16:38:11 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2024-02-09 17:52:40 +0000 |
| commit | 046f143c51128d130fac8ed1ddda1bae33c4bb4b (patch) | |
| tree | 2f4e77d3b090acc1855895dedff5f601f9ee74bf /gdbstub/gdbstub.c | |
| parent | 0a0d87c9b851338934f3018e9c18139b6c26f405 (diff) | |
| download | qemu-046f143c51128d130fac8ed1ddda1bae33c4bb4b.zip qemu-046f143c51128d130fac8ed1ddda1bae33c4bb4b.tar.gz qemu-046f143c51128d130fac8ed1ddda1bae33c4bb4b.tar.bz2 | |
gdbstub: Implement catching syscalls
GDB supports stopping on syscall entry and exit using the "catch
syscall" command. It relies on 3 packets, which are currently not
supported by QEMU:
* qSupported:QCatchSyscalls+ [1]
* QCatchSyscalls: [2]
* T05syscall_entry: and T05syscall_return: [3]
Implement generation and handling of these packets.
[1] https://sourceware.org/gdb/current/onlinedocs/gdb.html/General-Query-Packets.html#qSupported
[2] https://sourceware.org/gdb/current/onlinedocs/gdb.html/General-Query-Packets.html#QCatchSyscalls
[3] https://sourceware.org/gdb/current/onlinedocs/gdb.html/Stop-Reply-Packets.html
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240202152506.279476-5-iii@linux.ibm.com>
[AJB: GString -> g_strdup_printf]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240207163812.3231697-14-alex.bennee@linaro.org>
Diffstat (limited to 'gdbstub/gdbstub.c')
| -rw-r--r-- | gdbstub/gdbstub.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c index 46d752b..7e73e91 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -1617,6 +1617,7 @@ static void handle_query_supported(GArray *params, void *user_ctx) if (gdbserver_state.c_cpu->opaque) { g_string_append(gdbserver_state.str_buf, ";qXfer:auxv:read+"); } + g_string_append(gdbserver_state.str_buf, ";QCatchSyscalls+"); #endif g_string_append(gdbserver_state.str_buf, ";qXfer:exec-file:read+"); #endif @@ -1810,6 +1811,14 @@ static const GdbCmdParseEntry gdb_gen_set_table[] = { .schema = "l0" }, #endif +#if defined(CONFIG_USER_ONLY) + { + .handler = gdb_handle_set_catch_syscalls, + .cmd = "CatchSyscalls:", + .cmd_startswith = 1, + .schema = "s0", + }, +#endif }; static void handle_gen_query(GArray *params, void *user_ctx) |