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-rw-r--r--src/rtos/rtos.c657
1 files changed, 657 insertions, 0 deletions
diff --git a/src/rtos/rtos.c b/src/rtos/rtos.c
new file mode 100644
index 00000000..129770e8
--- /dev/null
+++ b/src/rtos/rtos.c
@@ -0,0 +1,657 @@
+/***************************************************************************
+ * Copyright (C) 2011 by Broadcom Corporation *
+ * Evan Hunter - ehunter@broadcom.com *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+
+#include "rtos.h"
+#include "target/target.h"
+#include "helper/log.h"
+#include "server/gdb_server.h"
+
+
+static long long current_threadid = -1;
+
+static void hex_to_str( char* dst, char * hex_src );
+static int str_to_hex( char* hex_dst, char* src );
+
+
+/* RTOSs */
+extern struct rtos_type FreeRTOS_rtos;
+extern struct rtos_type ThreadX_rtos;
+
+static struct rtos_type *rtos_types[] =
+{
+ &ThreadX_rtos,
+ &FreeRTOS_rtos,
+ NULL
+};
+
+
+int rtos_create(Jim_GetOptInfo *goi, struct target * target)
+{
+ int x;
+ char *cp;
+
+ if (! goi->isconfigure) {
+ if (goi->argc != 0) {
+ if (goi->argc != 0) {
+ Jim_WrongNumArgs(goi->interp,
+ goi->argc, goi->argv,
+ "NO PARAMS");
+ return JIM_ERR;
+ }
+
+ Jim_SetResultString(goi->interp,
+ target_type_name(target), -1);
+ }
+ }
+
+ if (target->rtos) {
+ free((void *)(target->rtos));
+ }
+// e = Jim_GetOpt_String(goi, &cp, NULL);
+// target->rtos = strdup(cp);
+
+ Jim_GetOpt_String(goi, &cp, NULL);
+ /* now does target type exist */
+
+ if ( 0 == strcmp( cp, "auto") )
+ {
+ // auto detection of RTOS
+ target->rtos_auto_detect = true;
+ x = 0;
+ }
+ else
+ {
+
+ for (x = 0 ; rtos_types[x] ; x++) {
+ if (0 == strcmp(cp, rtos_types[x]->name)) {
+ /* found */
+ break;
+ }
+ }
+ if (rtos_types[x] == NULL) {
+ Jim_SetResultFormatted(goi->interp, "Unknown rtos type %s, try one of ", cp);
+ for (x = 0 ; rtos_types[x] ; x++) {
+ if (rtos_types[x + 1]) {
+ Jim_AppendStrings(goi->interp,
+ Jim_GetResult(goi->interp),
+ rtos_types[x]->name,
+ ", ", NULL);
+ } else {
+ Jim_AppendStrings(goi->interp,
+ Jim_GetResult(goi->interp),
+ " or ",
+ rtos_types[x]->name,NULL);
+ }
+ }
+ return JIM_ERR;
+ }
+ }
+ /* Create it */
+ target->rtos = calloc(1,sizeof(struct rtos));
+ target->rtos->type = rtos_types[x];
+ target->rtos->current_thread = 0;
+ target->rtos->symbols = NULL;
+ target->rtos->target = target;
+
+ if ( 0 != strcmp( cp, "auto") )
+ {
+ target->rtos->type->create( target );
+ }
+
+ return JIM_OK;
+}
+
+
+
+
+int gdb_thread_packet(struct connection *connection, struct target *target, char *packet, int packet_size)
+{
+ if (strstr(packet, "qP"))
+ {
+ #define TAG_THREADID 1 /* Echo the thread identifier */
+ #define TAG_EXISTS 2 /* Is this process defined enough to
+ fetch registers and its stack */
+ #define TAG_DISPLAY 4 /* A short thing maybe to put on a window */
+ #define TAG_THREADNAME 8 /* string, maps 1-to-1 with a thread is */
+ #define TAG_MOREDISPLAY 16 /* Whatever the kernel wants to say about */
+
+ // TODO: need to scanf the mode variable (or it with the tags), and the threadid
+
+ unsigned long mode;
+ threadid_t threadid = 0;
+ struct thread_detail* detail;
+ sscanf(packet, "qP%8lx%16" SCNx64, &mode, &threadid);
+
+
+ int found = -1;
+
+ if ((target->rtos != NULL) && (target->rtos->thread_details
+ != NULL)) {
+ int thread_num;
+ for (thread_num = 0; thread_num
+ < target->rtos->thread_count; thread_num++) {
+ if (target->rtos->thread_details[thread_num].threadid
+ == threadid) {
+ if (target->rtos->thread_details[thread_num].exists) {
+ found = thread_num;
+ }
+ }
+ }
+ }
+ if (found == -1) {
+ gdb_put_packet(connection, "E01", 3); // thread not found
+ return ERROR_OK;
+ }
+
+ detail = &target->rtos->thread_details[found];
+
+ if ( detail->display_str != NULL )
+ {
+ mode &= TAG_DISPLAY;
+ }
+ if ( detail->thread_name_str != NULL )
+ {
+ mode &= TAG_THREADNAME;
+ }
+ if ( detail->extra_info_str != NULL )
+ {
+ mode &= TAG_MOREDISPLAY;
+ }
+
+
+ mode &= TAG_THREADID | TAG_EXISTS;
+
+ char thread_str[1000];
+
+ sprintf(thread_str, "%08lx", mode);
+ sprintf(thread_str, "%016" PRIx64, threadid);
+
+
+ if (mode & TAG_THREADID) {
+ sprintf(thread_str, "%08" PRIx32 "10%016" PRIx64, TAG_THREADID, threadid);
+ }
+ if (mode & TAG_EXISTS) {
+ sprintf(thread_str, "%08" PRIx32 "08%08" PRIx32, TAG_EXISTS, (detail->exists==true)?1:0);
+ }
+ if (mode & TAG_DISPLAY) {
+ sprintf(thread_str, "%08" PRIx32 "%02x%s", TAG_DISPLAY, (unsigned char)strlen(detail->display_str), detail->display_str );
+ }
+ if (mode & TAG_MOREDISPLAY) {
+ sprintf(thread_str, "%08" PRIx32 "%02x%s", TAG_MOREDISPLAY, (unsigned char)strlen(detail->extra_info_str), detail->extra_info_str );
+ }
+ if (mode & TAG_THREADNAME) {
+ sprintf(thread_str, "%08" PRIx32 "%02x%s", TAG_THREADNAME, (unsigned char)strlen(detail->thread_name_str), detail->thread_name_str );
+ }
+
+ //gdb_put_packet(connection, tmpstr, sizeof(tmpstr)-1);
+ gdb_put_packet(connection, thread_str, strlen(thread_str));
+
+ // gdb_put_packet(connection, "", 0);
+ // gdb_put_packet(connection, "OK", 2); // all threads alive
+ return ERROR_OK;
+ }
+ else if (strstr(packet, "qThreadExtraInfo,"))
+ {
+ if ((target->rtos != NULL) && (target->rtos->thread_details != NULL) && (target->rtos->thread_count != 0))
+ {
+ threadid_t threadid = 0;
+ int found = -1;
+ sscanf(packet, "qThreadExtraInfo,%" SCNx64, &threadid );
+
+ if ((target->rtos != NULL) && (target->rtos->thread_details
+ != NULL)) {
+ int thread_num;
+ for (thread_num = 0; thread_num
+ < target->rtos->thread_count; thread_num++) {
+ if (target->rtos->thread_details[thread_num].threadid
+ == threadid) {
+ if (target->rtos->thread_details[thread_num].exists) {
+ found = thread_num;
+ }
+ }
+ }
+ }
+ if (found == -1) {
+ gdb_put_packet(connection, "E01", 3); // thread not found
+ return ERROR_OK;
+ }
+
+ struct thread_detail* detail = &target->rtos->thread_details[found];
+
+ int str_size = 0;
+ if ( detail->display_str != NULL )
+ {
+ str_size += strlen(detail->display_str);
+ }
+ if ( detail->thread_name_str != NULL )
+ {
+ str_size += strlen(detail->thread_name_str);
+ }
+ if ( detail->extra_info_str != NULL )
+ {
+ str_size += strlen(detail->extra_info_str);
+ }
+
+ char * tmp_str = (char*) malloc( str_size + 7 );
+ char* tmp_str_ptr = tmp_str;
+
+ if ( detail->display_str != NULL )
+ {
+ tmp_str_ptr += sprintf( tmp_str_ptr, "%s", detail->display_str );
+ }
+ if ( detail->thread_name_str != NULL )
+ {
+ if ( tmp_str_ptr != tmp_str )
+ {
+ tmp_str_ptr += sprintf( tmp_str_ptr, " : " );
+ }
+ tmp_str_ptr += sprintf( tmp_str_ptr, "%s", detail->thread_name_str );
+ }
+ if ( detail->extra_info_str != NULL )
+ {
+ if ( tmp_str_ptr != tmp_str )
+ {
+ tmp_str_ptr += sprintf( tmp_str_ptr, " : " );
+ }
+ tmp_str_ptr += sprintf( tmp_str_ptr, " : %s", detail->extra_info_str );
+ }
+
+ char * hex_str = (char*) malloc( strlen(tmp_str)*2 +1 );
+ str_to_hex( hex_str, tmp_str );
+
+ gdb_put_packet(connection, hex_str, strlen(hex_str));
+ free(hex_str);
+ free(tmp_str);
+ return ERROR_OK;
+
+ }
+ gdb_put_packet(connection, "", 0);
+ return ERROR_OK;
+ }
+ else if (strstr(packet, "qSymbol"))
+ {
+ if ( target->rtos != NULL )
+ {
+ int next_symbol_num = -1;
+ if (target->rtos->symbols == NULL)
+ {
+ target->rtos->type->get_symbol_list_to_lookup( &target->rtos->symbols );
+ }
+ if (0 == strcmp( "qSymbol::", packet ) )
+ {
+ // first query -
+ next_symbol_num = 0;
+ }
+ else
+ {
+ long long value = 0;
+ char * hex_name_str = malloc( strlen(packet));
+ char * name_str;
+ int symbol_num;
+
+ char* found = strstr( packet, "qSymbol::" );
+ int numconv;
+ if (0 == found )
+ {
+ numconv =sscanf(packet, "qSymbol:%" SCNx64 ":%s", &value, hex_name_str);
+ }
+ else
+ {
+ // No value returned by GDB - symbol was not found
+ numconv =sscanf(packet, "qSymbol::%s", hex_name_str);
+ }
+ name_str = (char*) malloc( 1+ strlen(hex_name_str) / 2 );
+
+ hex_to_str( name_str, hex_name_str );
+
+
+ symbol_num = 0;
+ while ( ( target->rtos->symbols[ symbol_num ].symbol_name != NULL ) && ( 0 != strcmp( target->rtos->symbols[ symbol_num ].symbol_name, name_str ) ) )
+ {
+ symbol_num++;
+ }
+
+
+ if ( target->rtos->symbols[ symbol_num ].symbol_name == NULL )
+ {
+ LOG_OUTPUT("ERROR: unknown symbol\r\n");
+ gdb_put_packet(connection, "OK", 2);
+ return ERROR_OK;
+ }
+
+ target->rtos->symbols[ symbol_num ].address = value;
+
+ next_symbol_num = symbol_num+1;
+ free( hex_name_str );
+ free( name_str );
+
+ }
+
+ int symbols_done = 0;
+ if ( target->rtos->symbols[ next_symbol_num ].symbol_name == NULL )
+ {
+ if ( ( target->rtos_auto_detect == false ) ||
+ ( 1 == target->rtos->type->detect_rtos( target ) ) )
+ {
+ // Found correct RTOS or not autodetecting
+ if ( target->rtos_auto_detect == true )
+ {
+ LOG_OUTPUT( "Auto-detected RTOS: %s\r\n",target->rtos->type->name );
+ }
+ symbols_done = 1;
+ }
+ else
+ {
+ // Auto detecting RTOS and currently not found
+ if( 1 != rtos_try_next( target ) )
+ {
+ // No more RTOS's to try
+ symbols_done = 1;
+ }
+ else
+ {
+ next_symbol_num = 0;
+ target->rtos->type->get_symbol_list_to_lookup( &target->rtos->symbols );
+ }
+
+ }
+ }
+
+
+ if ( symbols_done == 1 )
+ {
+ target->rtos_auto_detect = false;
+ target->rtos->type->create( target );
+ target->rtos->type->update_threads(target->rtos);
+ // No more symbols needed
+ gdb_put_packet(connection, "OK", 2);
+ return ERROR_OK;
+
+ }
+ else
+ {
+ char* symname = target->rtos->symbols[ next_symbol_num ].symbol_name;
+ char qsymstr[] = "qSymbol:";
+ char * opstring = (char*)malloc(sizeof(qsymstr)+strlen(symname)*2+1);
+ char * posptr = opstring;
+ posptr += sprintf( posptr, "%s", qsymstr );
+ str_to_hex( posptr, symname );
+ gdb_put_packet(connection, opstring, strlen(opstring));
+ free(opstring);
+ return ERROR_OK;
+ }
+
+ }
+ gdb_put_packet(connection, "OK", 2);
+ return ERROR_OK;
+ }
+ else if (strstr(packet, "qfThreadInfo"))
+ {
+ int i;
+ if ( ( target->rtos != NULL ) && ( target->rtos->thread_count != 0 ) )
+ {
+
+ char* out_str = (char*) malloc(17 * target->rtos->thread_count + 5);
+ char* tmp_str = out_str;
+ tmp_str += sprintf(tmp_str, "m");
+ for (i = 0; i < target->rtos->thread_count; i++) {
+ if (i != 0) {
+ tmp_str += sprintf(tmp_str, ",");
+ }
+ tmp_str += sprintf(tmp_str, "%016" PRIx64,
+ target->rtos->thread_details[i].threadid);
+ }
+ tmp_str[0] = 0;
+ gdb_put_packet(connection, out_str, strlen(out_str));
+ }
+ else
+ {
+ gdb_put_packet(connection, "", 0);
+ }
+
+ return ERROR_OK;
+ }
+ else if (strstr(packet, "qsThreadInfo"))
+ {
+ gdb_put_packet(connection, "l", 1);
+ return ERROR_OK;
+ }
+ else if (strstr(packet, "qAttached"))
+ {
+ gdb_put_packet(connection, "1", 1);
+ return ERROR_OK;
+ }
+ else if (strstr(packet, "qOffsets"))
+ {
+ char offsets[] = "Text=0;Data=0;Bss=0";
+ gdb_put_packet(connection, offsets, sizeof(offsets)-1);
+ return ERROR_OK;
+ }
+ else if (strstr(packet, "qC"))
+ {
+ gdb_put_packet(connection, "QC0", 3);
+ return ERROR_OK;
+ }
+ else if ( packet[0] == 'T' ) // Is thread alive?
+ {
+ threadid_t threadid;
+ int found = -1;
+ sscanf(packet, "T%" SCNx64, &threadid);
+ if ((target->rtos != NULL) && (target->rtos->thread_details
+ != NULL)) {
+ int thread_num;
+ for (thread_num = 0; thread_num
+ < target->rtos->thread_count; thread_num++) {
+ if (target->rtos->thread_details[thread_num].threadid
+ == threadid) {
+ if (target->rtos->thread_details[thread_num].exists) {
+ found = thread_num;
+ }
+ }
+ }
+ }
+ if (found != -1) {
+ gdb_put_packet(connection, "OK", 2); // thread alive
+ } else {
+ gdb_put_packet(connection, "E01", 3); // thread not found
+ }
+ }
+ else if ( packet[0] == 'H') // Set current thread ( 'c' for step and continue, 'g' for all other operations )
+ {
+ if (packet[1] == 'g')
+ {
+ sscanf(packet, "Hg%16" SCNx64, &current_threadid);
+ }
+ gdb_put_packet(connection, "OK", 2);
+ }
+
+ return GDB_THREAD_PACKET_NOT_CONSUMED;
+}
+
+int rtos_get_gdb_reg_list(struct connection *connection, struct target *target, struct reg **reg_list[], int *reg_list_size)
+{
+ if ( ( target->rtos != NULL ) &&
+ ( current_threadid != 1 ) &&
+ ( current_threadid != 0 ) &&
+ ( current_threadid != target->rtos->current_thread ) )
+ {
+ char * hex_reg_list;
+ target->rtos->type->get_thread_reg_list( target->rtos, current_threadid, &hex_reg_list );
+
+ if ( hex_reg_list != NULL )
+ {
+ gdb_put_packet(connection, hex_reg_list, strlen(hex_reg_list));
+ free(hex_reg_list);
+ return ERROR_OK;
+ }
+ }
+ return ERROR_FAIL;
+}
+
+
+
+int rtos_generic_stack_read( struct target * target, const struct rtos_register_stacking* stacking, long long stack_ptr, char ** hex_reg_list )
+{
+ int list_size = 0;
+ char * tmp_str_ptr;
+ long long new_stack_ptr;
+ int i;
+ int retval;
+
+ if ( stack_ptr == 0)
+ {
+ LOG_OUTPUT("Error: null stack pointer in thread\r\n");
+ return -5;
+ }
+ // Read the stack
+ uint8_t * stack_data = (uint8_t*) malloc( stacking->stack_registers_size );
+ uint32_t address = stack_ptr;
+
+ if ( stacking->stack_growth_direction == 1 )
+ {
+ address -= stacking->stack_registers_size;
+ }
+ retval = target_read_buffer( target, stack_ptr, stacking->stack_registers_size, stack_data);
+ if ( retval != ERROR_OK )
+ {
+ LOG_OUTPUT("Error reading stack frame from FreeRTOS thread\r\n");
+ return retval;
+ }
+/*
+ LOG_OUTPUT("Stack Data :");
+ for(i = 0; i < stacking->stack_registers_size; i++ )
+ {
+ LOG_OUTPUT("%02X",stack_data[i]);
+ }
+ LOG_OUTPUT("\r\n");
+*/
+ for( i = 0; i < stacking->num_output_registers; i++ )
+ {
+ list_size += stacking->register_offsets[i].width_bits/8;
+ }
+ *hex_reg_list = (char*)malloc( list_size*2 +1 );
+ tmp_str_ptr = *hex_reg_list;
+ new_stack_ptr = stack_ptr + stacking->stack_growth_direction * stacking->stack_registers_size;
+ for( i = 0; i < stacking->num_output_registers; i++ )
+ {
+ int j;
+ for ( j = 0; j < stacking->register_offsets[i].width_bits/8; j++ )
+ {
+ if ( stacking->register_offsets[i].offset == -1 )
+ {
+ tmp_str_ptr += sprintf( tmp_str_ptr, "%02x", 0 );
+ }
+ else if ( stacking->register_offsets[i].offset == -2 )
+ {
+ tmp_str_ptr += sprintf( tmp_str_ptr, "%02x", ((uint8_t*)&new_stack_ptr)[j] );
+ }
+ else
+ {
+ tmp_str_ptr += sprintf( tmp_str_ptr,"%02x", stack_data[ stacking->register_offsets[i].offset + j ] );
+ }
+ }
+ }
+// LOG_OUTPUT("Output register string: %s\r\n", *hex_reg_list);
+ return ERROR_OK;
+}
+
+int rtos_try_next( struct target * target )
+{
+ int x;
+
+ if ( target->rtos == NULL )
+ {
+ return -1;
+ }
+
+ for (x = 0 ; rtos_types[x] ; x++) {
+ if (target->rtos->type == rtos_types[x] ) {
+ /* found */
+ if ( rtos_types[x+1] != NULL )
+ {
+ target->rtos->type = rtos_types[x+1];
+ if ( target->rtos->symbols != NULL )
+ {
+ free( target->rtos->symbols );
+ }
+ return 1;
+ }
+ else
+ {
+ // No more rtos types
+ return 0;
+ }
+
+ }
+ }
+ return 0;
+
+}
+
+static void hex_to_str( char* dst, char * hex_src )
+{
+ int src_pos = 0;
+ int dst_pos = 0;
+
+ while ( hex_src[src_pos] != '\x00' )
+ {
+ char hex_char = hex_src[src_pos];
+ char hex_digit_val = (hex_char>='a')?hex_char-'a'+10:(hex_char>='A')?hex_char-'A'+10:hex_char-'0';
+ if ( 0 == (src_pos & 0x01) )
+ {
+ dst[dst_pos] = hex_digit_val;
+ dst[dst_pos+1] = 0;
+ }
+ else
+ {
+ ((unsigned char*)dst)[dst_pos] <<= 4;
+ ((unsigned char*)dst)[dst_pos] += hex_digit_val;
+ dst_pos++;
+ }
+ src_pos++;
+ }
+
+}
+
+static int str_to_hex( char* hex_dst, char* src )
+{
+ char * posptr = hex_dst;
+ unsigned i;
+ for( i = 0; i < strlen(src); i++)
+ {
+ posptr += sprintf( posptr, "%02x", (unsigned char)src[i] );
+ }
+ return (posptr-hex_dst);
+}
+
+
+int rtos_update_threads( struct target* target )
+{
+ if ((target->rtos != NULL) && (target->rtos->type != NULL))
+ {
+ target->rtos->type->update_threads(target->rtos);
+ }
+ return ERROR_OK;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-28 22:53:03 +0000