diff options
Diffstat (limited to 'gdbstub')
| -rw-r--r-- | gdbstub/gdbstub.c | 141 |
1 files changed, 81 insertions, 60 deletions
diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c index b9ad0a0..b7be8e5 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -1614,18 +1614,21 @@ static void handle_query_thread_extra(GArray *params, void *user_ctx) gdb_put_strbuf(); } -static char *extended_qsupported_features; -void gdb_extend_qsupported_features(char *qsupported_features) -{ - /* - * We don't support different sets of CPU gdb features on different CPUs yet - * so assert the feature strings are the same on all CPUs, or is set only - * once (1 CPU). - */ - g_assert(extended_qsupported_features == NULL || - g_strcmp0(extended_qsupported_features, qsupported_features) == 0); - extended_qsupported_features = qsupported_features; +static char **extra_query_flags; + +void gdb_extend_qsupported_features(char *qflags) +{ + if (!extra_query_flags) { + extra_query_flags = g_new0(char *, 2); + extra_query_flags[0] = g_strdup(qflags); + } else if (!g_strv_contains((const gchar * const *) extra_query_flags, + qflags)) { + int len = g_strv_length(extra_query_flags); + extra_query_flags = g_realloc_n(extra_query_flags, len + 2, + sizeof(char *)); + extra_query_flags[len] = g_strdup(qflags); + } } static void handle_query_supported(GArray *params, void *user_ctx) @@ -1668,8 +1671,11 @@ static void handle_query_supported(GArray *params, void *user_ctx) g_string_append(gdbserver_state.str_buf, ";vContSupported+;multiprocess+"); - if (extended_qsupported_features) { - g_string_append(gdbserver_state.str_buf, extended_qsupported_features); + if (extra_query_flags) { + int extras = g_strv_length(extra_query_flags); + for (int i = 0; i < extras; i++) { + g_string_append(gdbserver_state.str_buf, extra_query_flags[i]); + } } gdb_put_strbuf(); @@ -1753,39 +1759,58 @@ static const GdbCmdParseEntry gdb_gen_query_set_common_table[] = { }, }; -/* Compares if a set of command parsers is equal to another set of parsers. */ -static bool cmp_cmds(GdbCmdParseEntry *c, GdbCmdParseEntry *d, int size) +/** + * extend_table() - extend one of the command tables + * @table: the command table to extend (or NULL) + * @extensions: a list of GdbCmdParseEntry pointers + * + * The entries themselves should be pointers to static const + * GdbCmdParseEntry entries. If the entry is already in the table we + * skip adding it again. + * + * Returns (a potentially freshly allocated) GPtrArray of GdbCmdParseEntry + */ +static GPtrArray *extend_table(GPtrArray *table, GPtrArray *extensions) { - for (int i = 0; i < size; i++) { - if (!(c[i].handler == d[i].handler && - g_strcmp0(c[i].cmd, d[i].cmd) == 0 && - c[i].cmd_startswith == d[i].cmd_startswith && - g_strcmp0(c[i].schema, d[i].schema) == 0)) { + if (!table) { + table = g_ptr_array_new(); + } - /* Sets are different. */ - return false; + for (int i = 0; i < extensions->len; i++) { + gpointer entry = g_ptr_array_index(extensions, i); + if (!g_ptr_array_find(table, entry, NULL)) { + g_ptr_array_add(table, entry); } } - /* Sets are equal, i.e. contain the same command parsers. */ - return true; + return table; } -static GdbCmdParseEntry *extended_query_table; -static int extended_query_table_size; -void gdb_extend_query_table(GdbCmdParseEntry *table, int size) +/** + * process_extended_table() - run through an extended command table + * @table: the command table to check + * @data: parameters + * + * returns true if the command was found and executed + */ +static bool process_extended_table(GPtrArray *table, const char *data) { - /* - * We don't support different sets of CPU gdb features on different CPUs yet - * so assert query table is the same on all CPUs, or is set only once - * (1 CPU). - */ - g_assert(extended_query_table == NULL || - (extended_query_table_size == size && - cmp_cmds(extended_query_table, table, size))); + for (int i = 0; i < table->len; i++) { + const GdbCmdParseEntry *entry = g_ptr_array_index(table, i); + if (process_string_cmd(data, entry, 1)) { + return true; + } + } + return false; +} + - extended_query_table = table; - extended_query_table_size = size; +/* Ptr to GdbCmdParseEntry */ +static GPtrArray *extended_query_table; + +void gdb_extend_query_table(GPtrArray *new_queries) +{ + extended_query_table = extend_table(extended_query_table, new_queries); } static const GdbCmdParseEntry gdb_gen_query_table[] = { @@ -1880,20 +1905,12 @@ static const GdbCmdParseEntry gdb_gen_query_table[] = { #endif }; -static GdbCmdParseEntry *extended_set_table; -static int extended_set_table_size; -void gdb_extend_set_table(GdbCmdParseEntry *table, int size) -{ - /* - * We don't support different sets of CPU gdb features on different CPUs yet - * so assert set table is the same on all CPUs, or is set only once (1 CPU). - */ - g_assert(extended_set_table == NULL || - (extended_set_table_size == size && - cmp_cmds(extended_set_table, table, size))); +/* Ptr to GdbCmdParseEntry */ +static GPtrArray *extended_set_table; - extended_set_table = table; - extended_set_table_size = size; +void gdb_extend_set_table(GPtrArray *new_set) +{ + extended_set_table = extend_table(extended_set_table, new_set); } static const GdbCmdParseEntry gdb_gen_set_table[] = { @@ -1924,26 +1941,28 @@ static const GdbCmdParseEntry gdb_gen_set_table[] = { static void handle_gen_query(GArray *params, void *user_ctx) { + const char *data; + if (!params->len) { return; } - if (process_string_cmd(gdb_get_cmd_param(params, 0)->data, + data = gdb_get_cmd_param(params, 0)->data; + + if (process_string_cmd(data, gdb_gen_query_set_common_table, ARRAY_SIZE(gdb_gen_query_set_common_table))) { return; } - if (process_string_cmd(gdb_get_cmd_param(params, 0)->data, + if (process_string_cmd(data, gdb_gen_query_table, ARRAY_SIZE(gdb_gen_query_table))) { return; } if (extended_query_table && - process_string_cmd(gdb_get_cmd_param(params, 0)->data, - extended_query_table, - extended_query_table_size)) { + process_extended_table(extended_query_table, data)) { return; } @@ -1953,26 +1972,28 @@ static void handle_gen_query(GArray *params, void *user_ctx) static void handle_gen_set(GArray *params, void *user_ctx) { + const char *data; + if (!params->len) { return; } - if (process_string_cmd(gdb_get_cmd_param(params, 0)->data, + data = gdb_get_cmd_param(params, 0)->data; + + if (process_string_cmd(data, gdb_gen_query_set_common_table, ARRAY_SIZE(gdb_gen_query_set_common_table))) { return; } - if (process_string_cmd(gdb_get_cmd_param(params, 0)->data, + if (process_string_cmd(data, gdb_gen_set_table, ARRAY_SIZE(gdb_gen_set_table))) { return; } if (extended_set_table && - process_string_cmd(gdb_get_cmd_param(params, 0)->data, - extended_set_table, - extended_set_table_size)) { + process_extended_table(extended_set_table, data)) { return; } |