[Libunwind-devel] [PATCH 15/17] ptrace/access_reg: print out register name on "bad register"

[Cody P Schafer]

When we have a "bad register", print out the name of that register (if
possible) to aid in debugging.
---
 src/ptrace/_UPT_access_reg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ptrace/_UPT_access_reg.c b/src/ptrace/_UPT_access_reg.c
index 00ba0cc..99949b2 100644
--- a/src/ptrace/_UPT_access_reg.c
+++ b/src/ptrace/_UPT_access_reg.c
@@ -251,7 +251,7 @@ _UPT_access_reg (unw_addr_space_t as, unw_regnum_t reg, 
unw_word_t *val,
   return 0;
 
  badreg:
-  Debug (1, "bad register number %u (error: %s)\n", reg, strerror (errno));
+  Debug (1, "bad register %s [%u] (error: %s)\n", unw_regname(reg), reg, 
strerror (errno));
   return -UNW_EBADREG;
 }
 #elif HAVE_DECL_PT_GETREGS
@@ -285,7 +285,7 @@ _UPT_access_reg (unw_addr_space_t as, unw_regnum_t reg, 
unw_word_t *val,
   return 0;
 
  badreg:
-  Debug (1, "bad register number %u (error: %s)\n", reg, strerror (errno));
+  Debug (1, "bad register %s [%u] (error: %s)\n", unw_regname(reg), reg, 
strerror (errno));
   return -UNW_EBADREG;
 }
 #else
-- 
1.7.11.3