From: guenther <guenther@openbsd.org>
Date: Sat, 9 Aug 2014 04:59:02 +0000 (+0000)
Subject: Backport from binutils-2.17 the correct i386/amd64 register->int assignments
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=241ee62137f58cebe5b7821f845bfda150dc8290;p=openbsd

Backport from binutils-2.17 the correct i386/amd64 register->int assignments
for CFI.  This changes the unwind information generated on amd64.
---

diff --git a/gnu/usr.bin/binutils/gas/config/tc-i386.c b/gnu/usr.bin/binutils/gas/config/tc-i386.c
index a3128a083c7..427e74ac1fd 100644
--- a/gnu/usr.bin/binutils/gas/config/tc-i386.c
+++ b/gnu/usr.bin/binutils/gas/config/tc-i386.c
@@ -6213,21 +6213,44 @@ tc_x86_regname_to_dw2regnum (const char *regname)
 {
   unsigned int regnum;
   unsigned int regnames_count;
-  char *regnames_32[] =
+  static const char *const regnames_32[] =
     {
       "eax", "ecx", "edx", "ebx",
       "esp", "ebp", "esi", "edi",
-      "eip"
+      "eip", "eflags", NULL,
+      "st0", "st1", "st2", "st3",
+      "st4", "st5", "st6", "st7",
+      NULL, NULL,
+      "xmm0", "xmm1", "xmm2", "xmm3",
+      "xmm4", "xmm5", "xmm6", "xmm7",
+      "mm0", "mm1", "mm2", "mm3",
+      "mm4", "mm5", "mm6", "mm7",
+      "fcw", "fsw", "mxcsr",
+      "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
+      "tr", "ldtr"
     };
-  char *regnames_64[] =
+  static const char *const regnames_64[] =
     {
-      "rax", "rbx", "rcx", "rdx",
-      "rdi", "rsi", "rbp", "rsp",
-      "r8", "r9", "r10", "r11",
+      "rax", "rdx", "rcx", "rbx",
+      "rsi", "rdi", "rbp", "rsp",
+      "r8",  "r9",  "r10", "r11",
       "r12", "r13", "r14", "r15",
-      "rip"
+      "rip",
+      "xmm0",  "xmm1",  "xmm2",  "xmm3",
+      "xmm4",  "xmm5",  "xmm6",  "xmm7",
+      "xmm8",  "xmm9",  "xmm10", "xmm11",
+      "xmm12", "xmm13", "xmm14", "xmm15",
+      "st0", "st1", "st2", "st3",
+      "st4", "st5", "st6", "st7",
+      "mm0", "mm1", "mm2", "mm3",
+      "mm4", "mm5", "mm6", "mm7",
+      "rflags",
+      "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
+      "fs.base", "gs.base", NULL, NULL,
+      "tr", "ldtr",
+      "mxcsr", "fcw", "fsw"
     };
-  char **regnames;
+  const char *const *regnames;
 
   if (flag_code == CODE_64BIT)
     {
@@ -6241,7 +6264,8 @@ tc_x86_regname_to_dw2regnum (const char *regname)
     }
 
   for (regnum = 0; regnum < regnames_count; regnum++)
-    if (strcmp (regname, regnames[regnum]) == 0)
+    if (regnames[regnum] != NULL
+	&& strcmp (regname, regnames[regnum]) == 0)
       return regnum;
 
   return -1;