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gdbstub: Add Xfer:siginfo:read stub

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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 <gustavo.romero@linaro.org>
Message-Id: <20240309030901.1726211-5-gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Gustavo Romero 2024-03-09 03:09:00 +00:00 • committed by Alex Bennée
parent f84e313e02
commit 9ae5801d35
3 changed files with 32 additions and 0 deletions
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1
gdbstub/internals.h
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@ -190,6 +190,7 @@ typedef union GdbCmdVariant {
void gdb_handle_query_rcmd(GArray *params, void *user_ctx); /* softmmu */
void gdb_handle_query_offsets(GArray *params, void *user_ctx); /* user */
void gdb_handle_query_xfer_auxv(GArray *params, void *user_ctx); /*user */
void gdb_handle_query_xfer_siginfo(GArray *params, void *user_ctx); /*user */
void gdb_handle_v_file_open(GArray *params, void *user_ctx); /* user */
void gdb_handle_v_file_close(GArray *params, void *user_ctx); /* user */
void gdb_handle_v_file_pread(GArray *params, void *user_ctx); /* user */