diff options
| author | Antonio Borneo <borneo.antonio@gmail.com> | 2018-09-05 15:37:15 +0200 |
|---|---|---|
| committer | Matthias Welwarsky <matthias@welwarsky.de> | 2018-09-07 08:17:42 +0100 |
| commit | 11019a824d0273012e9b253fd63ddda6a2468c83 (patch) | |
| tree | dc25aa14d80f44ff5b62d1aef954a8e8f5aa3d1f /src/target/arm_adi_v5.c | |
| parent | 2a3b709aa5d1ab83faed1dc7c296ffc117022d62 (diff) | |
adi_v5: enforce check on AP number value
The AP number value is restricted in 8 bits unsigned by ADI-v5
specification. Nevertheless, an "invalid" value is used by
target cortex-m to force an automatic detection of the AP.
Replace magic numbers by using new macros for AP max number and
for the value of AP invalid.
Check the value passed through -ap-num flag during configuration.
Change-Id: Ic19a367db0ab11c0ebd070750eca0647d25279a5
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4668
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Diffstat (limited to 'src/target/arm_adi_v5.c')
| -rw-r--r-- | src/target/arm_adi_v5.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/src/target/arm_adi_v5.c b/src/target/arm_adi_v5.c index 302ea789..b4e252bb 100644 --- a/src/target/arm_adi_v5.c +++ b/src/target/arm_adi_v5.c @@ -793,7 +793,7 @@ int dap_find_ap(struct adiv5_dap *dap, enum ap_type type_to_find, struct adiv5_a int ap_num; /* Maximum AP number is 255 since the SELECT register is 8 bits */ - for (ap_num = 0; ap_num <= 255; ap_num++) { + for (ap_num = 0; ap_num <= DP_APSEL_MAX; ap_num++) { /* read the IDR register of the Access Port */ uint32_t id_val = 0; @@ -1429,7 +1429,7 @@ int adiv5_jim_configure(struct target *target, Jim_GetOptInfo *goi) pc = (struct adiv5_private_config *)target->private_config; if (pc == NULL) { pc = calloc(1, sizeof(struct adiv5_private_config)); - pc->ap_num = -1; + pc->ap_num = DP_APSEL_INVALID; target->private_config = pc; } @@ -1498,6 +1498,10 @@ int adiv5_jim_configure(struct target *target, Jim_GetOptInfo *goi) e = Jim_GetOpt_Wide(goi, &ap_num); if (e != JIM_OK) return e; + if (ap_num < 0 || ap_num > DP_APSEL_MAX) { + Jim_SetResultString(goi->interp, "Invalid AP number!", -1); + return JIM_ERR; + } pc->ap_num = ap_num; } else { if (goi->argc != 0) { @@ -1507,7 +1511,7 @@ int adiv5_jim_configure(struct target *target, Jim_GetOptInfo *goi) return JIM_ERR; } - if (pc->ap_num < 0) { + if (pc->ap_num == DP_APSEL_INVALID) { Jim_SetResultString(goi->interp, "AP number not configured", -1); return JIM_ERR; } @@ -1543,7 +1547,7 @@ COMMAND_HANDLER(handle_dap_info_command) break; case 1: COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel); - if (apsel >= 256) + if (apsel > DP_APSEL_MAX) return ERROR_COMMAND_SYNTAX_ERROR; break; default: @@ -1566,7 +1570,7 @@ COMMAND_HANDLER(dap_baseaddr_command) case 1: COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel); /* AP address is in bits 31:24 of DP_SELECT */ - if (apsel >= 256) + if (apsel > DP_APSEL_MAX) return ERROR_COMMAND_SYNTAX_ERROR; break; default: @@ -1625,7 +1629,7 @@ COMMAND_HANDLER(dap_apsel_command) case 1: COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel); /* AP address is in bits 31:24 of DP_SELECT */ - if (apsel >= 256) + if (apsel > DP_APSEL_MAX) return ERROR_COMMAND_SYNTAX_ERROR; break; default: @@ -1691,7 +1695,7 @@ COMMAND_HANDLER(dap_apid_command) case 1: COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel); /* AP address is in bits 31:24 of DP_SELECT */ - if (apsel >= 256) + if (apsel > DP_APSEL_MAX) return ERROR_COMMAND_SYNTAX_ERROR; break; default: @@ -1722,7 +1726,7 @@ COMMAND_HANDLER(dap_apreg_command) COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel); /* AP address is in bits 31:24 of DP_SELECT */ - if (apsel >= 256) + if (apsel > DP_APSEL_MAX) return ERROR_COMMAND_SYNTAX_ERROR; ap = dap_ap(dap, apsel); |