From 9ae5801d35b5228583dfcdb9c76cf2c6f4566215 Mon Sep 17 00:00:00 2001 From: Gustavo Romero Date: Sat, 9 Mar 2024 03:09:00 +0000 Subject: gdbstub: Add Xfer:siginfo:read stub MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add stub to handle Xfer:siginfo:read packet query that requests the machine's siginfo data. This is used when GDB user executes 'print $_siginfo' and when the machine stops due to a signal, for instance, on SIGSEGV. The information in siginfo allows GDB to determiner further details on the signal, like the fault address/insn when the SIGSEGV is caught. Signed-off-by: Gustavo Romero Message-Id: <20240309030901.1726211-5-gustavo.romero@linaro.org> Signed-off-by: Alex Bennée Reviewed-by: Richard Henderson --- gdbstub/gdbstub.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'gdbstub/gdbstub.c') diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c index 17efcae0d0..9c23d44baf 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -1664,6 +1664,8 @@ static void handle_query_supported(GArray *params, void *user_ctx) g_string_append(gdbserver_state.str_buf, ";qXfer:auxv:read+"); } g_string_append(gdbserver_state.str_buf, ";QCatchSyscalls+"); + + g_string_append(gdbserver_state.str_buf, ";qXfer:siginfo:read+"); #endif g_string_append(gdbserver_state.str_buf, ";qXfer:exec-file:read+"); #endif @@ -1818,6 +1820,12 @@ static const GdbCmdParseEntry gdb_gen_query_table[] = { .cmd_startswith = 1, .schema = "l,l0" }, + { + .handler = gdb_handle_query_xfer_siginfo, + .cmd = "Xfer:siginfo:read::", + .cmd_startswith = 1, + .schema = "l,l0" + }, #endif { .handler = gdb_handle_query_xfer_exec_file, -- cgit 1.4.1