libunwind-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Libunwind-devel] [PATCH] arm: fix reading SP register read


From: MyungJoo Ham
Subject: [Libunwind-devel] [PATCH] arm: fix reading SP register read
Date: Mon, 07 Mar 2016 10:34:48 +0000 (GMT)

Partially reverting 0f9937485 while keeping
the part that disallowing writing to SP.

Signed-off-by: MyungJoo Ham <address@hidden>
---
 src/arm/Gregs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/arm/Gregs.c b/src/arm/Gregs.c
index 688771f..0cc5552 100644
--- a/src/arm/Gregs.c
+++ b/src/arm/Gregs.c
@@ -51,6 +51,10 @@ tdep_access_reg (struct cursor *c, unw_regnum_t reg, 
unw_word_t *valp,
       break;
 
     case UNW_ARM_R13:
+      if (write)
+        return -UNW_EREADONLYREG;
+      loc = c->dwarf.loc[reg - UNW_ARM_R0];
+      break;
     case UNW_ARM_CFA:
       if (write)
         return -UNW_EREADONLYREG;
-- 
1.9.1


reply via email to

[Prev in Thread] Current Thread [Next in Thread]