diff options
Diffstat (limited to 'src/target/arm7_9_common.c')
| -rw-r--r-- | src/target/arm7_9_common.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/target/arm7_9_common.c b/src/target/arm7_9_common.c index 255a85f5..7318b5f3 100644 --- a/src/target/arm7_9_common.c +++ b/src/target/arm7_9_common.c @@ -36,6 +36,7 @@ #include "etm.h" #include <helper/time_support.h> #include "arm_simulator.h" +#include "arm_semihosting.h" #include "algorithm.h" #include "register.h" @@ -915,6 +916,9 @@ int arm7_9_poll(struct target *target) } } + if (arm_semihosting(target, &retval) != 0) + return retval; + if ((retval = target_call_event_callbacks(target, TARGET_EVENT_HALTED)) != ERROR_OK) { return retval; @@ -2814,6 +2818,39 @@ COMMAND_HANDLER(handle_arm7_9_dcc_downloads_command) return ERROR_OK; } +COMMAND_HANDLER(handle_arm7_9_semihosting_command) +{ + struct target *target = get_current_target(CMD_CTX); + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + + if (!is_arm7_9(arm7_9)) + { + command_print(CMD_CTX, "current target isn't an ARM7/ARM9 target"); + return ERROR_TARGET_INVALID; + } + + if (CMD_ARGC > 0) + { + COMMAND_PARSE_ENABLE(CMD_ARGV[0], semihosting_active); + + /* TODO: support other methods if vector catch is unavailable */ + if (arm7_9->has_vector_catch) { + struct reg *vector_catch = &arm7_9->eice_cache->reg_list[EICE_VEC_CATCH]; + if (!vector_catch->valid) + embeddedice_read_reg(vector_catch); + buf_set_u32(vector_catch->value, 2, 1, semihosting_active); + embeddedice_store_reg(vector_catch); + } else if (semihosting_active) { + command_print(CMD_CTX, "vector catch unavailable"); + semihosting_active = 0; + } + } + + command_print(CMD_CTX, "semihosting is %s", (semihosting_active) ? "enabled" : "disabled"); + + return ERROR_OK; +} + int arm7_9_init_arch_info(struct target *target, struct arm7_9_common *arm7_9) { int retval = ERROR_OK; @@ -2867,6 +2904,13 @@ static const struct command_registration arm7_9_any_command_handlers[] = { .usage = "<enable | disable>", .help = "use DCC downloads for larger memory writes", }, + { + "semihosting", + .handler = &handle_arm7_9_semihosting_command, + .mode = COMMAND_EXEC, + .usage = "<enable | disable>", + .help = "activate support for semihosting operations", + }, COMMAND_REGISTRATION_DONE }; const struct command_registration arm7_9_command_handlers[] = { |