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Bugfixes in mips32_pracc.c 

When testing a pic32mx220f032b with different values
for adapter_khz and cpu clocks i was getting a lot of
corrupted data from the chip. From time to time
openocd fails with segmentation faults or is aborted
due to memory corruption.

Change-Id: I134743f75c477b3d55dc74ae4474598e153b4a4a
Signed-off-by: Salvador Arroyo <sarroyofdez@yahoo.es>
Reviewed-on: http://openocd.zylin.com/690
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
__archive__
Salvador Arroyo 2012-06-07 16:44:34 +02:00 committed by Freddie Chopin
parent 09cd5661e6
commit 5e1f5f4731
1 changed files with 15 additions and 7 deletions
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22
src/target/mips32_pracc.c
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@ -153,18 +153,22 @@ static int mips32_pracc_exec_read(struct mips32_pracc_context *ctx, uint32_t add
uint32_t ejtag_ctrl, data;
if ((address >= MIPS32_PRACC_PARAM_IN)
&& (address <= MIPS32_PRACC_PARAM_IN + ctx->num_iparam * 4)) {
&& (address < MIPS32_PRACC_PARAM_IN + ctx->num_iparam * 4)) {
offset = (address - MIPS32_PRACC_PARAM_IN) / 4;
data = ctx->local_iparam[offset];
} else if ((address >= MIPS32_PRACC_PARAM_OUT)
&& (address <= MIPS32_PRACC_PARAM_OUT + ctx->num_oparam * 4)) {
&& (address < MIPS32_PRACC_PARAM_OUT + ctx->num_oparam * 4)) {
offset = (address - MIPS32_PRACC_PARAM_OUT) / 4;
data = ctx->local_oparam[offset];
} else if ((address >= MIPS32_PRACC_TEXT)
&& (address <= MIPS32_PRACC_TEXT + ctx->code_len * 4)) {
&& (address < MIPS32_PRACC_TEXT + ctx->code_len * 4)) {
offset = (address - MIPS32_PRACC_TEXT) / 4;
data = ctx->code[offset];
} else if (address == MIPS32_PRACC_STACK) {
if (ctx->stack_offset <= 0) {
LOG_ERROR("Error: Pracc stack out of bounds");
return ERROR_JTAG_DEVICE_ERROR;
}
/* save to our debug stack */
data = ctx->stack[--ctx->stack_offset];
} else {
@ -209,14 +213,18 @@ static int mips32_pracc_exec_write(struct mips32_pracc_context *ctx, uint32_t ad
return retval;
if ((address >= MIPS32_PRACC_PARAM_IN)
&& (address <= MIPS32_PRACC_PARAM_IN + ctx->num_iparam * 4)) {
&& (address < MIPS32_PRACC_PARAM_IN + ctx->num_iparam * 4)) {
offset = (address - MIPS32_PRACC_PARAM_IN) / 4;
ctx->local_iparam[offset] = data;
} else if ((address >= MIPS32_PRACC_PARAM_OUT)
&& (address <= MIPS32_PRACC_PARAM_OUT + ctx->num_oparam * 4)) {
&& (address < MIPS32_PRACC_PARAM_OUT + ctx->num_oparam * 4)) {
offset = (address - MIPS32_PRACC_PARAM_OUT) / 4;
ctx->local_oparam[offset] = data;
} else if (address == MIPS32_PRACC_STACK) {
if (ctx->stack_offset >= 32) {
LOG_ERROR("Error: Pracc stack out of bounds");
return ERROR_JTAG_DEVICE_ERROR;
}
/* save data onto our stack */
ctx->stack[ctx->stack_offset++] = data;
} else {
@ -231,7 +239,7 @@ int mips32_pracc_exec(struct mips_ejtag *ejtag_info, int code_len, const uint32_
int num_param_in, uint32_t *param_in, int num_param_out, uint32_t *param_out, int cycle)
{
uint32_t ejtag_ctrl;
uint32_t address, data;
uint32_t address;
struct mips32_pracc_context ctx;
int retval;
int pass = 0;
@ -250,7 +258,7 @@ int mips32_pracc_exec(struct mips_ejtag *ejtag_info, int code_len, const uint32_
if (retval != ERROR_OK)
return retval;
address = data = 0;
address = 0;
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
retval = mips_ejtag_drscan_32(ejtag_info, &address);
if (retval != ERROR_OK)