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gdbstub: Introduce gdb_handle_query_supported_user()

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The upcoming follow-fork-mode child support requires advertising the
fork-events feature, which is user-specific. Introduce a user-specific
hook for this.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20240219141628.246823-9-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-10-alex.bennee@linaro.org>
This commit is contained in:
Ilya Leoshkevich 2024-03-05 12:09:45 +00:00 committed by Alex Bennée
parent 6604b05763
commit 6d923112fd
3 changed files with 14 additions and 3 deletions
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12
gdbstub/gdbstub.c
View file

@ -1655,9 +1655,15 @@ static void handle_query_supported(GArray *params, void *user_ctx)
g_string_append(gdbserver_state.str_buf, ";qXfer:exec-file:read+");
#endif
if (params->len &&
strstr(get_param(params, 0)->data, "multiprocess+")) {
gdbserver_state.multiprocess = true;
if (params->len) {
const char *gdb_supported = get_param(params, 0)->data;
if (strstr(gdb_supported, "multiprocess+")) {
gdbserver_state.multiprocess = true;
}
#if defined(CONFIG_USER_ONLY)
gdb_handle_query_supported_user(gdb_supported);
#endif
}
g_string_append(gdbserver_state.str_buf, ";vContSupported+;multiprocess+");

1
gdbstub/internals.h
View file

@ -196,6 +196,7 @@ void gdb_handle_v_file_pread(GArray *params, void *user_ctx); /* user */
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 */
void gdb_handle_query_attached(GArray *params, void *user_ctx); /* both */

4
gdbstub/user.c
View file

@ -382,6 +382,10 @@ void gdbserver_fork_end(CPUState *cpu, pid_t pid)
disable_gdbstub(cpu);
}
void gdb_handle_query_supported_user(const char *gdb_supported)
{
}
/*
* Execution state helpers
*/