Signed-off-by: Øyvind Harboe <oyvind.har...@zylin.com>
---
src/target/arm_adi_v5.c | 44 ++++++++++++++++++++++++++++---------
src/target/cortex_m3.c | 55 ++++++++++++++++++++++++++++++++++------------
2 files changed, 73 insertions(+), 26 deletions(-)
diff --git a/src/target/arm_adi_v5.c b/src/target/arm_adi_v5.c
index 496360f..194865e 100644
--- a/src/target/arm_adi_v5.c
+++ b/src/target/arm_adi_v5.c
@@ -1124,7 +1124,9 @@ static int dap_info_command(struct command_context
*cmd_ctx,
entry_offset = 0;
do
{
- mem_ap_read_atomic_u32(dap, (dbgbase&0xFFFFF000) |
entry_offset, &romentry);
+ retval = mem_ap_read_atomic_u32(dap,
(dbgbase&0xFFFFF000) | entry_offset, &romentry);
+ if (retval != ERROR_OK)
+ return retval;
command_print(cmd_ctx, "\tROMTABLE[0x%x] = 0x%" PRIx32
"",entry_offset,romentry);
if (romentry&0x01)
{
@@ -1140,33 +1142,51 @@ static int dap_info_command(struct command_context
*cmd_ctx,
/* IDs are in last 4K section */
- mem_ap_read_atomic_u32(dap,
+ retval = mem_ap_read_atomic_u32(dap,
component_base + 0xFE0, &c_pid0);
+ if (retval != ERROR_OK)
+ return retval;
c_pid0 &= 0xff;
- mem_ap_read_atomic_u32(dap,
+ retval = mem_ap_read_atomic_u32(dap,
component_base + 0xFE4, &c_pid1);
+ if (retval != ERROR_OK)
+ return retval;
c_pid1 &= 0xff;
- mem_ap_read_atomic_u32(dap,
+ retval = mem_ap_read_atomic_u32(dap,
component_base + 0xFE8, &c_pid2);
+ if (retval != ERROR_OK)
+ return retval;
c_pid2 &= 0xff;
- mem_ap_read_atomic_u32(dap,
+ retval = mem_ap_read_atomic_u32(dap,
component_base + 0xFEC, &c_pid3);
+ if (retval != ERROR_OK)
+ return retval;
c_pid3 &= 0xff;
- mem_ap_read_atomic_u32(dap,
+ retval = mem_ap_read_atomic_u32(dap,
component_base + 0xFD0, &c_pid4);
+ if (retval != ERROR_OK)
+ return retval;
c_pid4 &= 0xff;
- mem_ap_read_atomic_u32(dap,
+ retval = mem_ap_read_atomic_u32(dap,
component_base + 0xFF0, &c_cid0);
+ if (retval != ERROR_OK)
+ return retval;
c_cid0 &= 0xff;
- mem_ap_read_atomic_u32(dap,
+ retval = mem_ap_read_atomic_u32(dap,
component_base + 0xFF4, &c_cid1);
+ if (retval != ERROR_OK)
+ return retval;
c_cid1 &= 0xff;
- mem_ap_read_atomic_u32(dap,
+ retval = mem_ap_read_atomic_u32(dap,
component_base + 0xFF8, &c_cid2);
+ if (retval != ERROR_OK)
+ return retval;
c_cid2 &= 0xff;
- mem_ap_read_atomic_u32(dap,
+ retval = mem_ap_read_atomic_u32(dap,
component_base + 0xFFC, &c_cid3);
+ if (retval != ERROR_OK)
+ return retval;
c_cid3 &= 0xff;
@@ -1187,9 +1207,11 @@ static int dap_info_command(struct command_context
*cmd_ctx,
unsigned minor;
char *major = "Reserved", *subtype =
"Reserved";
- mem_ap_read_atomic_u32(dap,
+ retval = mem_ap_read_atomic_u32(dap,
(component_base &
0xfffff000) | 0xfcc,
&devtype);
+ if (retval != ERROR_OK)
+ return retval;
minor = (devtype >> 4) & 0x0f;
switch (devtype & 0x0f) {
case 0:
diff --git a/src/target/cortex_m3.c b/src/target/cortex_m3.c
index 6939890..7bdf7d5 100644
--- a/src/target/cortex_m3.c
+++ b/src/target/cortex_m3.c
@@ -155,12 +155,15 @@ static int cortex_m3_clear_halt(struct target *target)
{
struct cortex_m3_common *cortex_m3 = target_to_cm3(target);
struct adiv5_dap *swjdp = &cortex_m3->armv7m.dap;
+ int retval;
/* clear step if any */
cortex_m3_write_debug_halt_mask(target, C_HALT, C_STEP);
/* Read Debug Fault Status Register */
- mem_ap_read_atomic_u32(swjdp, NVIC_DFSR, &cortex_m3->nvic_dfsr);
+ retval = mem_ap_read_atomic_u32(swjdp, NVIC_DFSR,
&cortex_m3->nvic_dfsr);
+ if (retval != ERROR_OK)
+ return retval;
/* Clear Debug Fault Status */
mem_ap_write_atomic_u32(swjdp, NVIC_DFSR, cortex_m3->nvic_dfsr);
@@ -208,14 +211,18 @@ static int cortex_m3_endreset_event(struct target *target)
struct cortex_m3_dwt_comparator *dwt_list =
cortex_m3->dwt_comparator_list;
/* REVISIT The four debug monitor bits are currently ignored... */
- mem_ap_read_atomic_u32(swjdp, DCB_DEMCR, &dcb_demcr);
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DEMCR, &dcb_demcr);
+ if (retval != ERROR_OK)
+ return retval;
LOG_DEBUG("DCB_DEMCR = 0x%8.8" PRIx32 "",dcb_demcr);
/* this register is used for emulated dcc channel */
mem_ap_write_u32(swjdp, DCB_DCRDR, 0);
/* Enable debug requests */
- mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR,
&cortex_m3->dcb_dhcsr);
+ if (retval != ERROR_OK)
+ return retval;
if (!(cortex_m3->dcb_dhcsr & C_DEBUGEN))
mem_ap_write_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN);
@@ -262,7 +269,7 @@ static int cortex_m3_endreset_event(struct target *target)
register_cache_invalidate(cortex_m3->armv7m.core_cache);
/* make sure we have latest dhcsr flags */
- mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR,
&cortex_m3->dcb_dhcsr);
return retval;
}
@@ -396,7 +403,9 @@ static int cortex_m3_debug_entry(struct target *target)
LOG_DEBUG(" ");
cortex_m3_clear_halt(target);
- mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR,
&cortex_m3->dcb_dhcsr);
+ if (retval != ERROR_OK)
+ return retval;
if ((retval = armv7m->examine_debug_reason(target)) != ERROR_OK)
return retval;
@@ -508,13 +517,17 @@ static int cortex_m3_poll(struct target *target)
target->debug_reason = DBG_REASON_DBGRQ;
/* refresh status bits */
- mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR,
&cortex_m3->dcb_dhcsr);
+ if (retval != ERROR_OK)
+ return retval;
}
if (cortex_m3->dcb_dhcsr & S_RESET_ST)
{
/* check if still in reset */
- mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR,
&cortex_m3->dcb_dhcsr);
+ if (retval != ERROR_OK)
+ return retval;
if (cortex_m3->dcb_dhcsr & S_RESET_ST)
{
@@ -642,8 +655,10 @@ static int cortex_m3_soft_reset_halt(struct target *target)
retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &dcb_dhcsr);
if (retval == ERROR_OK)
{
- mem_ap_read_atomic_u32(swjdp, NVIC_DFSR,
+ retval = mem_ap_read_atomic_u32(swjdp, NVIC_DFSR,
&cortex_m3->nvic_dfsr);
+ if (retval != ERROR_OK)
+ return retval;
if ((dcb_dhcsr & S_HALT)
&& (cortex_m3->nvic_dfsr & DFSR_VCATCH))
{
@@ -835,7 +850,10 @@ static int cortex_m3_step(struct target *target, int
current,
cortex_m3_write_debug_halt_mask(target, C_STEP, C_HALT);
}
- mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ int retval;
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR,
&cortex_m3->dcb_dhcsr);
+ if (retval != ERROR_OK)
+ return retval;
/* registers are now invalid */
register_cache_invalidate(cortex_m3->armv7m.core_cache);
@@ -847,7 +865,6 @@ static int cortex_m3_step(struct target *target, int
current,
" nvic_icsr = 0x%" PRIx32,
cortex_m3->dcb_dhcsr, cortex_m3->nvic_icsr);
- int retval;
retval = cortex_m3_debug_entry(target);
if (retval != ERROR_OK)
return retval;
@@ -880,7 +897,10 @@ static int cortex_m3_assert_reset(struct target *target)
assert_srst = 0;
/* Enable debug requests */
- mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ int retval;
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR,
&cortex_m3->dcb_dhcsr);
+ if (retval != ERROR_OK)
+ return retval;
if (!(cortex_m3->dcb_dhcsr & C_DEBUGEN))
mem_ap_write_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN);
@@ -982,7 +1002,9 @@ static int cortex_m3_assert_reset(struct target *target)
* after reset) on LM3S6918 -- Michael Schwingen
*/
uint32_t tmp;
- mem_ap_read_atomic_u32(swjdp, NVIC_AIRCR, &tmp);
+ retval = mem_ap_read_atomic_u32(swjdp, NVIC_AIRCR,
&tmp);
+ if (retval != ERROR_OK)
+ return retval;
}
}
@@ -993,7 +1015,6 @@ static int cortex_m3_assert_reset(struct target *target)
if (target->reset_halt)
{
- int retval;
if ((retval = target_halt(target)) != ERROR_OK)
return retval;
}
@@ -1982,7 +2003,9 @@ COMMAND_HANDLER(handle_cortex_m3_vector_catch_command)
if (retval != ERROR_OK)
return retval;
- mem_ap_read_atomic_u32(swjdp, DCB_DEMCR, &demcr);
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DEMCR, &demcr);
+ if (retval != ERROR_OK)
+ return retval;
if (CMD_ARGC > 0) {
unsigned catch = 0;
@@ -2019,7 +2042,9 @@ write:
/* write, but don't assume it stuck (why not??) */
mem_ap_write_u32(swjdp, DCB_DEMCR, demcr);
- mem_ap_read_atomic_u32(swjdp, DCB_DEMCR, &demcr);
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DEMCR, &demcr);
+ if (retval != ERROR_OK)
+ return retval;
/* FIXME be sure to clear DEMCR on clean server shutdown.
* Otherwise the vector catch hardware could fire when there's
--
1.6.3.3
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