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[Libunwind-devel] [PATCH 7/8] ARM: Return the in case the user

From: Ken Werner
Subject: [Libunwind-devel] [PATCH 7/8] ARM: Return the in case the user requests SP/R13.
Date: Wed, 23 Mar 2011 15:55:05 +0000

Usually we don't have a valid location for the SP but we keep calculating
the value of the CFA. The ARM backend should return this value instead.

Signed-off-by: Ken Werner <address@hidden>
 src/arm/Gregs.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/arm/Gregs.c b/src/arm/Gregs.c
index 1546f58..03693a2 100644
--- a/src/arm/Gregs.c
+++ b/src/arm/Gregs.c
@@ -45,12 +45,12 @@ tdep_access_reg (struct cursor *c, unw_regnum_t reg, 
unw_word_t *valp,
     case UNW_ARM_R10:
     case UNW_ARM_R11:
     case UNW_ARM_R12:
-    case UNW_ARM_R13:
     case UNW_ARM_R14:
     case UNW_ARM_R15:
       loc = c->dwarf.loc[reg - UNW_ARM_R0];
+    case UNW_ARM_R13:
     case UNW_ARM_CFA:
       if (write)
         return -UNW_EREADONLYREG;

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