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aarch64: clear breakpoint value register on removal 

Not only null control but also value of the breakpoint when it is
removed.

Change-Id: Id99c7e3644729c64e563f1fa8b0577f350be6a98
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
This commit is contained in:
Matthias Welwarsky 2016-09-16 15:17:41 +02:00
parent 42574b3a10
commit 667c1d0d16
1 changed files with 27 additions and 0 deletions
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27
src/target/aarch64.c
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@ -1571,6 +1571,16 @@ static int aarch64_unset_breakpoint(struct target *target, struct breakpoint *br
brp_list[brp_i].control);
if (retval != ERROR_OK)
return retval;
retval = aarch64_dap_write_memap_register_u32(target, armv8->debug_base
+ CPUV8_DBG_BVR_BASE + 16 * brp_list[brp_i].BRPn,
(uint32_t)brp_list[brp_i].value);
if (retval != ERROR_OK)
return retval;
retval = aarch64_dap_write_memap_register_u32(target, armv8->debug_base
+ CPUV8_DBG_BVR_BASE + 4 + 16 * brp_list[brp_i].BRPn,
(uint32_t)brp_list[brp_i].value);
if (retval != ERROR_OK)
return retval;
if ((brp_j < 0) || (brp_j >= aarch64->brp_num)) {
LOG_DEBUG("Invalid BRP number in breakpoint");
return ERROR_OK;
@ -1585,6 +1595,17 @@ static int aarch64_unset_breakpoint(struct target *target, struct breakpoint *br
brp_list[brp_j].control);
if (retval != ERROR_OK)
return retval;
retval = aarch64_dap_write_memap_register_u32(target, armv8->debug_base
+ CPUV8_DBG_BVR_BASE + 16 * brp_list[brp_j].BRPn,
(uint32_t)brp_list[brp_j].value);
if (retval != ERROR_OK)
return retval;
retval = aarch64_dap_write_memap_register_u32(target, armv8->debug_base
+ CPUV8_DBG_BVR_BASE + 4 + 16 * brp_list[brp_j].BRPn,
(uint32_t)brp_list[brp_j].value);
if (retval != ERROR_OK)
return retval;
breakpoint->linked_BRP = 0;
breakpoint->set = 0;
return ERROR_OK;
@ -1610,6 +1631,12 @@ static int aarch64_unset_breakpoint(struct target *target, struct breakpoint *br
brp_list[brp_i].value);
if (retval != ERROR_OK)
return retval;
retval = aarch64_dap_write_memap_register_u32(target, armv8->debug_base
+ CPUV8_DBG_BVR_BASE + 4 + 16 * brp_list[brp_i].BRPn,
(uint32_t)brp_list[brp_i].value);
if (retval != ERROR_OK)
return retval;
breakpoint->set = 0;
return ERROR_OK;
}