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authorIlya Leoshkevich <iii@linux.ibm.com>2024-03-05 12:09:46 +0000
committerAlex Bennée <alex.bennee@linaro.org>2024-03-06 12:35:19 +0000
commite454f2fe24793afd1fa596deb42b714478adf73b (patch)
treea42367a0bd509597f401f04fdc2b919e251020f5 /gdbstub
parent6d923112fd18f73bd55cbae23ae5a8023457b85c (diff)
gdbstub: Introduce gdb_handle_set_thread_user()
The upcoming follow-fork-mode child support needs to perform certain actions when GDB switches between the stopped parent and the stopped child. Introduce a user-specific hook for this. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240219141628.246823-10-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240305121005.3528075-11-alex.bennee@linaro.org>
Diffstat (limited to 'gdbstub')
-rw-r--r--gdbstub/gdbstub.c11
-rw-r--r--gdbstub/internals.h1
-rw-r--r--gdbstub/user.c5
3 files changed, 15 insertions, 2 deletions
diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c
index 7be4418dcb..3eb93162aa 100644
--- a/gdbstub/gdbstub.c
+++ b/gdbstub/gdbstub.c
@@ -1099,6 +1099,7 @@ static void handle_cont_with_sig(GArray *params, void *user_ctx)
static void handle_set_thread(GArray *params, void *user_ctx)
{
+ uint32_t pid, tid;
CPUState *cpu;
if (params->len != 2) {
@@ -1116,8 +1117,14 @@ static void handle_set_thread(GArray *params, void *user_ctx)
return;
}
- cpu = gdb_get_cpu(get_param(params, 1)->thread_id.pid,
- get_param(params, 1)->thread_id.tid);
+ pid = get_param(params, 1)->thread_id.pid;
+ tid = get_param(params, 1)->thread_id.tid;
+#ifdef CONFIG_USER_ONLY
+ if (gdb_handle_set_thread_user(pid, tid)) {
+ return;
+ }
+#endif
+ cpu = gdb_get_cpu(pid, tid);
if (!cpu) {
gdb_put_packet("E22");
return;
diff --git a/gdbstub/internals.h b/gdbstub/internals.h
index e6063835b1..b4905c7181 100644
--- a/gdbstub/internals.h
+++ b/gdbstub/internals.h
@@ -197,6 +197,7 @@ void gdb_handle_v_file_readlink(GArray *params, void *user_ctx); /* user */
void gdb_handle_query_xfer_exec_file(GArray *params, void *user_ctx); /* user */
void gdb_handle_set_catch_syscalls(GArray *params, void *user_ctx); /* user */
void gdb_handle_query_supported_user(const char *gdb_supported); /* user */
+bool gdb_handle_set_thread_user(uint32_t pid, uint32_t tid); /* user */
void gdb_handle_query_attached(GArray *params, void *user_ctx); /* both */
diff --git a/gdbstub/user.c b/gdbstub/user.c
index c9e8b83d72..b048754c4f 100644
--- a/gdbstub/user.c
+++ b/gdbstub/user.c
@@ -386,6 +386,11 @@ void gdb_handle_query_supported_user(const char *gdb_supported)
{
}
+bool gdb_handle_set_thread_user(uint32_t pid, uint32_t tid)
+{
+ return false;
+}
+
/*
* Execution state helpers
*/