From: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Date: Sun, 14 Feb 2021 12:21:36 +0000 (+0100)
Subject: arm_dpm: do not read/write non-existent registers
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=708284a1accfa01c7a14ea7d7cd588000776d6b7;p=fw%2Fopenocd

arm_dpm: do not read/write non-existent registers

Change-Id: I6a991899bb178ee0c6b41870a45d0a9439d9dc1e
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: http://openocd.zylin.com/6063
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
---

diff --git a/src/target/arm_dpm.c b/src/target/arm_dpm.c
index 058f0df09..d1f574856 100644
--- a/src/target/arm_dpm.c
+++ b/src/target/arm_dpm.c
@@ -514,7 +514,7 @@ int arm_dpm_write_dirty_registers(struct arm_dpm *dpm, bool bpwp)
 				continue;
 			if (arm->cpsr == cache->reg_list + i)
 				continue;
-			if (!cache->reg_list[i].dirty)
+			if (!cache->reg_list[i].exist || !cache->reg_list[i].dirty)
 				continue;
 
 			r = cache->reg_list[i].arch_info;
@@ -763,7 +763,7 @@ static int arm_dpm_full_context(struct target *target)
 		for (unsigned i = 0; i < cache->num_regs; i++) {
 			struct arm_reg *r;
 
-			if (cache->reg_list[i].valid)
+			if (!cache->reg_list[i].exist || cache->reg_list[i].valid)
 				continue;
 			r = cache->reg_list[i].arch_info;