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[Libunwind-devel] [PATCH 12/17] ppc64: be explicit in access_reg range c


From: Cody P Schafer
Subject: [Libunwind-devel] [PATCH 12/17] ppc64: be explicit in access_reg range check
Date: Fri, 14 Sep 2012 17:11:57 -0700

---
 src/ppc64/Ginit.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ppc64/Ginit.c b/src/ppc64/Ginit.c
index 97c9d78..53c4028 100644
--- a/src/ppc64/Ginit.c
+++ b/src/ppc64/Ginit.c
@@ -141,9 +141,9 @@ access_reg (unw_addr_space_t as, unw_regnum_t reg, 
unw_word_t *val,
   unw_word_t *addr;
   ucontext_t *uc = arg;
 
-  if ((unsigned int) (reg - UNW_PPC64_F0) < 32)
+  if (UNW_PPC64_F0 <= reg && reg <= UNW_PPC64_F31)
     goto badreg;
-  if ((unsigned int) (reg - UNW_PPC64_V0) < 32)
+  if (UNW_PPC64_V0 <= reg && reg <= UNW_PPC64_V31)
     goto badreg;
 
   addr = uc_addr (uc, reg);
-- 
1.7.11.3




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