From 9d6ede25ddb0863873f84b6a55f4300891429049 Mon Sep 17 00:00:00 2001
From: Spencer Oliver <ntfreak@users.sourceforge.net>
Date: Fri, 26 Feb 2010 23:29:38 +0000
Subject: semihosting: move semihosting cmd to arm cmd group
Move semihosting cmd to the arm cmd group.
Targets that support semihosting will setup the
setup_semihosting callback function.
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
---
src/target/arm.h | 2 ++
src/target/arm7_9_common.c | 60 +++++++++++++---------------------------------
src/target/armv4_5.c | 50 ++++++++++++++++++++++++++++++++++++++
3 files changed, 68 insertions(+), 44 deletions(-)
(limited to 'src')
diff --git a/src/target/arm.h b/src/target/arm.h
index 6b304e9f..ee4bd767 100644
--- a/src/target/arm.h
+++ b/src/target/arm.h
@@ -132,6 +132,8 @@ struct arm {
/** Value to be returned by semihosting SYS_ERRNO request. */
int semihosting_errno;
+ int (*setup_semihosting)(struct target *target, int enable);
+
/** Backpointer to the target. */
struct target *target;
diff --git a/src/target/arm7_9_common.c b/src/target/arm7_9_common.c
index 21767291..f9deb831 100644
--- a/src/target/arm7_9_common.c
+++ b/src/target/arm7_9_common.c
@@ -2834,54 +2834,32 @@ COMMAND_HANDLER(handle_arm7_9_dcc_downloads_command)
return ERROR_OK;
}
-COMMAND_HANDLER(handle_arm7_9_semihosting_command)
+int arm7_9_setup_semihosting(struct target *target, int enable)
{
- 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");
+ LOG_USER("current target isn't an ARM7/ARM9 target");
return ERROR_TARGET_INVALID;
}
- if (CMD_ARGC > 0)
- {
- int semihosting;
-
- COMMAND_PARSE_ENABLE(CMD_ARGV[0], semihosting);
-
- if (!target_was_examined(target))
- {
- LOG_ERROR("Target not examined yet");
- return ERROR_FAIL;
- }
-
- 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);
- embeddedice_store_reg(vector_catch);
- } else {
- /* TODO: allow optional high vectors and/or BKPT_HARD */
- if (semihosting)
- breakpoint_add(target, 8, 4, BKPT_SOFT);
- else
- breakpoint_remove(target, 8);
- }
-
- /* FIXME never let that "catch" be dropped! */
- arm7_9->armv4_5_common.is_semihosting = semihosting;
+ 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, enable);
+ embeddedice_store_reg(vector_catch);
+ } else {
+ /* TODO: allow optional high vectors and/or BKPT_HARD */
+ if (enable)
+ breakpoint_add(target, 8, 4, BKPT_SOFT);
+ else
+ breakpoint_remove(target, 8);
}
- command_print(CMD_CTX, "semihosting is %s",
- arm7_9->armv4_5_common.is_semihosting
- ? "enabled" : "disabled");
-
return ERROR_OK;
}
@@ -2906,6 +2884,7 @@ int arm7_9_init_arch_info(struct target *target, struct arm7_9_common *arm7_9)
armv4_5->read_core_reg = arm7_9_read_core_reg;
armv4_5->write_core_reg = arm7_9_write_core_reg;
armv4_5->full_context = arm7_9_full_context;
+ armv4_5->setup_semihosting = arm7_9_setup_semihosting;
retval = arm_init_arch_info(target, armv4_5);
if (retval != ERROR_OK)
@@ -2939,13 +2918,6 @@ 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[] = {
diff --git a/src/target/armv4_5.c b/src/target/armv4_5.c
index 36101b02..04887857 100644
--- a/src/target/armv4_5.c
+++ b/src/target/armv4_5.c
@@ -951,6 +951,49 @@ static int jim_mcrmrc(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
return JIM_OK;
}
+COMMAND_HANDLER(handle_arm_semihosting_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm *arm = target ? target_to_arm(target) : NULL;
+
+ if (!is_arm(arm)) {
+ command_print(CMD_CTX, "current target isn't an ARM");
+ return ERROR_FAIL;
+ }
+
+ if (!arm->setup_semihosting)
+ {
+ command_print(CMD_CTX, "semihosting not supported for current target");
+ }
+
+ if (CMD_ARGC > 0)
+ {
+ int semihosting;
+
+ COMMAND_PARSE_ENABLE(CMD_ARGV[0], semihosting);
+
+ if (!target_was_examined(target))
+ {
+ LOG_ERROR("Target not examined yet");
+ return ERROR_FAIL;
+ }
+
+ if (arm->setup_semihosting(target, semihosting) != ERROR_OK) {
+ LOG_ERROR("Failed to Configure semihosting");
+ return ERROR_FAIL;
+ }
+
+ /* FIXME never let that "catch" be dropped! */
+ arm->is_semihosting = semihosting;
+ }
+
+ command_print(CMD_CTX, "semihosting is %s",
+ arm->is_semihosting
+ ? "enabled" : "disabled");
+
+ return ERROR_OK;
+}
+
static const struct command_registration arm_exec_command_handlers[] = {
{
.name = "reg",
@@ -985,6 +1028,13 @@ static const struct command_registration arm_exec_command_handlers[] = {
.help = "read coprocessor register",
.usage = "cpnum op1 CRn op2 CRm",
},
+ {
+ "semihosting",
+ .handler = handle_arm_semihosting_command,
+ .mode = COMMAND_EXEC,
+ .usage = "['enable'|'disable']",
+ .help = "activate support for semihosting operations",
+ },
COMMAND_REGISTRATION_DONE
};
--
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