From 3b2518bd734b6fedbaf102f89a75126aafe73651 Mon Sep 17 00:00:00 2001
From: oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60>
Date: Tue, 7 Oct 2008 11:08:57 +0000
Subject: Georg Acher <acher@in.tum.de> - arm11 wip. run algorithm + small init
bugfix.
git-svn-id: svn://svn.berlios.de/openocd/trunk@1023 b42882b7-edfa-0310-969c-e2dbd0fdcd60
---
src/target/arm11.c | 219 +++++++++++++++++++++++++++++++++++++++++++++--------
src/target/arm11.h | 4 +
2 files changed, 193 insertions(+), 30 deletions(-)
diff --git a/src/target/arm11.c b/src/target/arm11.c
index f962cde2..758e99d4 100644
--- a/src/target/arm11.c
+++ b/src/target/arm11.c
@@ -3,6 +3,8 @@
* *
* Copyright (C) 2008 Oyvind Harboe oyvind.harboe@zylin.com *
* *
+ * Copyright (C) 2008 Georg Acher <acher@in.tum.de> *
+ * *
* 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 *
@@ -74,14 +76,14 @@ target_type_t arm11_target =
ARM11_HANDLER(assert_reset),
ARM11_HANDLER(deassert_reset),
ARM11_HANDLER(soft_reset_halt),
-
+
ARM11_HANDLER(get_gdb_reg_list),
-
+
ARM11_HANDLER(read_memory),
ARM11_HANDLER(write_memory),
-
+
ARM11_HANDLER(bulk_write_memory),
-
+
ARM11_HANDLER(checksum_memory),
ARM11_HANDLER(add_breakpoint),
@@ -90,7 +92,7 @@ target_type_t arm11_target =
ARM11_HANDLER(remove_watchpoint),
ARM11_HANDLER(run_algorithm),
-
+
ARM11_HANDLER(register_commands),
ARM11_HANDLER(target_create),
ARM11_HANDLER(init_target),
@@ -408,7 +410,7 @@ static void arm11_on_enter_debug_state(arm11_common_t * arm11)
u32 new_dscr = R(DSCR) | ARM11_DSCR_EXECUTE_ARM_INSTRUCTION_ENABLE;
- /* this executes JTAG queue: */
+ /* this executes JTAG queue: */
arm11_write_DSCR(arm11, new_dscr);
@@ -427,7 +429,7 @@ static void arm11_on_enter_debug_state(arm11_common_t * arm11)
/* mcr 15, 0, r0, cr7, cr10, {4} */
arm11_run_instr_no_data1(arm11, 0xee070f9a);
-
+
u32 dscr = arm11_read_DSCR(arm11);
LOG_DEBUG("DRAIN, DSCR %08x", dscr);
@@ -621,7 +623,7 @@ void arm11_leave_debug_state(arm11_common_t * arm11)
/* restore rDTR */
-
+
if (R(DSCR) & ARM11_DSCR_RDTR_FULL || arm11->reg_list[ARM11_RC_RDTR].dirty)
{
arm11_add_debug_SCAN_N(arm11, 0x05, -1);
@@ -726,7 +728,7 @@ int arm11_halt(struct target_s *target)
arm11_common_t * arm11 = target->arch_info;
- LOG_DEBUG("target->state: %s",
+ LOG_DEBUG("target->state: %s",
Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name );
if (target->state == TARGET_UNKNOWN)
@@ -783,7 +785,7 @@ int arm11_resume(struct target_s *target, int current, u32 address, int handle_b
arm11_common_t * arm11 = target->arch_info;
- LOG_DEBUG("target->state: %s",
+ LOG_DEBUG("target->state: %s",
Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name );
@@ -821,7 +823,7 @@ int arm11_resume(struct target_s *target, int current, u32 address, int handle_b
/* set all breakpoints */
size_t brp_num = 0;
-
+
for (bp = target->breakpoints; bp; bp = bp->next)
{
arm11_sc7_action_t brp[2];
@@ -832,7 +834,7 @@ int arm11_resume(struct target_s *target, int current, u32 address, int handle_b
brp[1].write = 1;
brp[1].address = ARM11_SC7_BCR0 + brp_num;
brp[1].value = 0x1 | (3 << 1) | (0x0F << 5) | (0 << 14) | (0 << 16) | (0 << 20) | (0 << 21);
-
+
arm11_sc7_run(arm11, brp, asizeof(brp));
LOG_DEBUG("Add BP " ZU " at %08x", brp_num, bp->address);
@@ -880,7 +882,7 @@ int arm11_step(struct target_s *target, int current, u32 address, int handle_bre
{
FNC_INFO;
- LOG_DEBUG("target->state: %s",
+ LOG_DEBUG("target->state: %s",
Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name );
if (target->state != TARGET_HALTED)
@@ -1016,7 +1018,7 @@ int arm11_deassert_reset(struct target_s *target)
FNC_INFO;
#if 0
- LOG_DEBUG("target->state: %s",
+ LOG_DEBUG("target->state: %s",
Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name );
@@ -1074,7 +1076,7 @@ int arm11_get_gdb_reg_list(struct target_s *target, struct reg_s **reg_list[], i
}
-/* target memory access
+/* target memory access
* size: 1 = byte (8bit), 2 = half-word (16bit), 4 = word (32bit)
* count: number of items of <size>
*/
@@ -1283,7 +1285,7 @@ int arm11_checksum_memory(struct target_s *target, u32 address, u32 count, u32*
}
-/* target break-/watchpoint control
+/* target break-/watchpoint control
* rw: 0 = write, 1 = read, 2 = access
*/
int arm11_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
@@ -1322,7 +1324,7 @@ int arm11_remove_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
FNC_INFO;
arm11_common_t * arm11 = target->arch_info;
-
+
arm11->free_brps++;
return ERROR_OK;
@@ -1342,13 +1344,170 @@ int arm11_remove_watchpoint(struct target_s *target, watchpoint_t *watchpoint)
return ERROR_OK;
}
-
+// HACKHACKHACK - FIXME mode/state
/* target algorithm support */
-int arm11_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info)
+int arm11_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t *mem_params,
+ int num_reg_params, reg_param_t *reg_params, u32 entry_point, u32 exit_point,
+ int timeout_ms, void *arch_info)
{
- FNC_INFO_NOTIMPLEMENTED;
+ arm11_common_t *arm11 = target->arch_info;
+ armv4_5_algorithm_t *arm11_algorithm_info = arch_info;
+// enum armv4_5_state core_state = arm11->core_state;
+// enum armv4_5_mode core_mode = arm11->core_mode;
+ u32 context[16];
+ u32 cpsr;
+ int exit_breakpoint_size = 0;
+ int i;
+ int retval = ERROR_OK;
+ LOG_DEBUG("Running algorithm");
+
+ if (arm11_algorithm_info->common_magic != ARMV4_5_COMMON_MAGIC)
+ {
+ LOG_ERROR("current target isn't an ARMV4/5 target");
+ return ERROR_TARGET_INVALID;
+ }
- return ERROR_OK;
+ if (target->state != TARGET_HALTED)
+ {
+ LOG_WARNING("target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ // FIXME
+// if (armv4_5_mode_to_number(arm11->core_mode)==-1)
+// return ERROR_FAIL;
+
+ // Save regs
+ for (i = 0; i < 16; i++)
+ {
+ context[i] = buf_get_u32((u8*)(&arm11->reg_values[i]),0,32);
+ LOG_DEBUG("Save %i: 0x%x",i,context[i]);
+ }
+
+ cpsr = buf_get_u32((u8*)(arm11->reg_values+ARM11_RC_CPSR),0,32);
+ LOG_DEBUG("Save CPSR: 0x%x",i,cpsr);
+
+ for (i = 0; i < num_mem_params; i++)
+ {
+ target_write_buffer(target, mem_params[i].address, mem_params[i].size, mem_params[i].value);
+ }
+
+ // Set register parameters
+ for (i = 0; i < num_reg_params; i++)
+ {
+ reg_t *reg = register_get_by_name(arm11->core_cache, reg_params[i].reg_name, 0);
+ u32 val;
+ if (!reg)
+ {
+ LOG_ERROR("BUG: register '%s' not found", reg_params[i].reg_name);
+ exit(-1);
+ }
+
+ if (reg->size != reg_params[i].size)
+ {
+ LOG_ERROR("BUG: register '%s' size doesn't match reg_params[i].size", reg_params[i].reg_name);
+ exit(-1);
+ }
+ arm11_set_reg(reg,reg_params[i].value);
+// printf("%i: Set %s =%08x\n", i, reg_params[i].reg_name,val);
+ }
+
+ exit_breakpoint_size = 4;
+
+/* arm11->core_state = arm11_algorithm_info->core_state;
+ if (arm11->core_state == ARMV4_5_STATE_ARM)
+ exit_breakpoint_size = 4;
+ else if (arm11->core_state == ARMV4_5_STATE_THUMB)
+ exit_breakpoint_size = 2;
+ else
+ {
+ LOG_ERROR("BUG: can't execute algorithms when not in ARM or Thumb state");
+ exit(-1);
+ }
+*/
+ if (arm11_algorithm_info->core_mode != ARMV4_5_MODE_ANY)
+ {
+ LOG_DEBUG("setting core_mode: 0x%2.2x", arm11_algorithm_info->core_mode);
+ buf_set_u32(arm11->reg_list[ARM11_RC_CPSR].value, 0, 5, arm11_algorithm_info->core_mode);
+ arm11->reg_list[ARM11_RC_CPSR].dirty = 1;
+ arm11->reg_list[ARM11_RC_CPSR].valid = 1;
+ }
+
+ if ((retval = breakpoint_add(target, exit_point, exit_breakpoint_size, BKPT_HARD)) != ERROR_OK)
+ {
+ LOG_ERROR("can't add breakpoint to finish algorithm execution");
+ retval = ERROR_TARGET_FAILURE;
+ goto restore;
+ }
+
+ target_resume(target, 0, entry_point, 1, 0); // no debug, otherwise breakpoint is not set
+
+ target_wait_state(target, TARGET_HALTED, timeout_ms);
+ if (target->state != TARGET_HALTED)
+ {
+ if ((retval=target_halt(target))!=ERROR_OK)
+ return retval;
+ if ((retval=target_wait_state(target, TARGET_HALTED, 500))!=ERROR_OK)
+ {
+ return retval;
+ }
+ retval = ERROR_TARGET_TIMEOUT;
+ goto del_breakpoint;
+ }
+
+ if (buf_get_u32(arm11->reg_list[15].value, 0, 32) != exit_point)
+ {
+ LOG_WARNING("target reentered debug state, but not at the desired exit point: 0x%4.4x",
+ buf_get_u32(arm11->reg_list[15].value, 0, 32));
+ retval = ERROR_TARGET_TIMEOUT;
+ goto del_breakpoint;
+ }
+
+ for (i = 0; i < num_mem_params; i++)
+ {
+ if (mem_params[i].direction != PARAM_OUT)
+ target_read_buffer(target, mem_params[i].address, mem_params[i].size, mem_params[i].value);
+ }
+
+ for (i = 0; i < num_reg_params; i++)
+ {
+ if (reg_params[i].direction != PARAM_OUT)
+ {
+ reg_t *reg = register_get_by_name(arm11->core_cache, reg_params[i].reg_name, 0);
+ if (!reg)
+ {
+ LOG_ERROR("BUG: register '%s' not found", reg_params[i].reg_name);
+ exit(-1);
+ }
+
+ if (reg->size != reg_params[i].size)
+ {
+ LOG_ERROR("BUG: register '%s' size doesn't match reg_params[i].size", reg_params[i].reg_name);
+ exit(-1);
+ }
+
+ buf_set_u32(reg_params[i].value, 0, 32, buf_get_u32(reg->value, 0, 32));
+ }
+ }
+
+del_breakpoint:
+ breakpoint_remove(target, exit_point);
+
+restore:
+ // Restore context
+ for (i = 0; i < 16; i++)
+ {
+ LOG_DEBUG("restoring register %s with value 0x%8.8x",
+ arm11->reg_list[i].name, context[i]);
+ arm11_set_reg(&arm11->reg_list[i], &context[i]);
+ }
+ LOG_DEBUG("restoring CPSR with value 0x%8.8x", cpsr);
+ arm11_set_reg(&arm11->reg_list[ARM11_RC_CPSR], &cpsr);
+
+// arm11->core_state = core_state;
+// arm11->core_mode = core_mode;
+
+ return retval;
}
int arm11_target_create(struct target_s *target, Jim_Interp *interp)
@@ -1415,7 +1574,7 @@ int arm11_examine(struct target_s *target)
arm11_add_dr_scan_vc(asizeof(chain0_fields), chain0_fields, TAP_RTI);
- if ((retval=jtag_execute_queue())!=ERROR_OK)
+ if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
@@ -1464,7 +1623,7 @@ int arm11_examine(struct target_s *target)
arm11_check_init(arm11, NULL);
target->type->examined = 1;
-
+
return ERROR_OK;
}
@@ -1528,7 +1687,7 @@ void arm11_build_reg_cache(target_t *target)
arm11->reg_list = reg_list;
- /* Build the process context cache */
+ /* Build the process context cache */
cache->name = "arm11 registers";
cache->next = NULL;
cache->reg_list = reg_list;
@@ -1537,7 +1696,7 @@ void arm11_build_reg_cache(target_t *target)
reg_cache_t **cache_p = register_get_last_cache_p(&target->reg_cache);
(*cache_p) = cache;
-// armv7m->core_cache = cache;
+ arm11->core_cache = cache;
// armv7m->process_context = cache;
size_t i;
@@ -1670,7 +1829,7 @@ arm11_common_t * arm11_find_target(const char * arg)
{target_t * t;
for (t = all_targets; t; t = t->next)
{
- if (t->type != &arm11_target)
+ if (strcmp(t->type->name,"arm11"))
continue;
arm11_common_t * arm11 = t->arch_info;
@@ -1709,7 +1868,7 @@ int arm11_handle_mrc_mcr(struct command_context_s *cmd_ctx, char *cmd, char **ar
return ERROR_TARGET_NOT_HALTED;
}
-
+
u32 values[6];
{size_t i;
@@ -1740,8 +1899,8 @@ int arm11_handle_mrc_mcr(struct command_context_s *cmd_ctx, char *cmd, char **ar
arm11_run_instr_data_prepare(arm11);
if (read)
- {
- u32 result;
+ {
+ u32 result;
arm11_run_instr_data_from_core_via_r0(arm11, instr, &result);
LOG_INFO("MRC p%d, %d, R0, c%d, c%d, %d = 0x%08x (%d)",
@@ -1752,7 +1911,7 @@ int arm11_handle_mrc_mcr(struct command_context_s *cmd_ctx, char *cmd, char **ar
arm11_run_instr_data_to_core_via_r0(arm11, instr, values[5]);
LOG_INFO("MRC p%d, %d, R0 (#0x%08x), c%d, c%d, %d",
- values[0], values[1],
+ values[0], values[1],
values[5],
values[2], values[3], values[4]);
}
diff --git a/src/target/arm11.h b/src/target/arm11.h
index dfc8c8d4..d7200a40 100644
--- a/src/target/arm11.h
+++ b/src/target/arm11.h
@@ -1,6 +1,8 @@
/***************************************************************************
* Copyright (C) 2008 digenius technology GmbH. *
* *
+ * Copyright (C) 2008 Georg Acher <acher@in.tum.de> *
+ * *
* 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 *
@@ -107,6 +109,8 @@ typedef struct arm11_common_s
size_t free_brps; /**< keep track of breakpoints allocated by arm11_add_breakpoint() */
size_t free_wrps; /**< keep track of breakpoints allocated by arm11_add_watchpoint() */
+ // GA
+ reg_cache_t *core_cache;
} arm11_common_t;
--
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