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authormlu <mlu@b42882b7-edfa-0310-969c-e2dbd0fdcd60>2009-09-08 15:31:24 +0000
committermlu <mlu@b42882b7-edfa-0310-969c-e2dbd0fdcd60>2009-09-08 15:31:24 +0000
commitf6a5749c1b75ab8d272e1c3e1adea0682061b5b0 (patch)
treef5918b958ef67f10d7d7263aa0af63ceaba6f522 /src
parent5dae4753ff9a6ca87104ef09aa128e1425826049 (diff)
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Load PC with bit 0 set to 1 when resuming to say in Thumb instruction state.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2677 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src')
-rw-r--r--src/target/cortex_a8.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/target/cortex_a8.c b/src/target/cortex_a8.c
index 68717df7..55a3c45b 100644
--- a/src/target/cortex_a8.c
+++ b/src/target/cortex_a8.c
@@ -85,7 +85,6 @@ target_type_t cortexa8_target =
.deassert_reset = NULL,
.soft_reset_halt = NULL,
-// .get_gdb_reg_list = armv4_5_get_gdb_reg_list,
.get_gdb_reg_list = armv4_5_get_gdb_reg_list,
.read_memory = cortex_a8_read_memory,
@@ -509,6 +508,13 @@ int cortex_a8_resume(struct target_s *target, int current,
{
resume_pc &= 0xFFFFFFFC;
}
+ /* When the return address is loaded into PC
+ * bit 0 must be 1 to stay in Thumb state
+ */
+ if (armv7a->core_state == ARMV7A_STATE_THUMB)
+ {
+ resume_pc |= 0x1;
+ }
LOG_DEBUG("resume pc = 0x%08" PRIx32, resume_pc);
buf_set_u32(ARMV7A_CORE_REG_MODE(armv4_5->core_cache,
armv4_5->core_mode, 15).value,
@@ -592,7 +598,6 @@ int cortex_a8_debug_entry(target_t *target)
retval = mem_ap_write_atomic_u32(swjdp,
OMAP3530_DEBUG_BASE + CPUDBG_DSCR, dscr);
-
/* Examine debug reason */
switch ((cortex_a8->cpudbg_dscr >> 2)&0xF)
{