(Logical change 1.162)

include/dwarf_i.h

@@ -0,0 +1,343 @@
+#ifndef DWARF_I_H
+#define DWARF_I_H
+
+/* This file contains definitions that cannot be used in code outside
+   of libunwind.  In particular, most inline functions are here
+   because otherwise they'd generate unresolved references when the
+   files are compiled with inlining disabled.  */
+
+#include "dwarf.h"
+#include "tdep.h"
+
+#define dwarf_to_unw_regnum_map		UNW_OBJ (dwarf_to_unw_regnum_map)
+
+extern uint8_t dwarf_to_unw_regnum_map[DWARF_REGNUM_MAP_LENGTH];
+
+static inline unw_regnum_t
+dwarf_to_unw_regnum (unw_word_t regnum)
+{
+  if (regnum <= DWARF_REGNUM_MAP_LENGTH)
+    return dwarf_to_unw_regnum_map[regnum];
+  return 0;
+}
+
+#ifdef UNW_LOCAL_ONLY
+
+/* In the local-only case, we can let the compiler directly access
+   memory and don't need to worry about differing byte-order.  */
+
+typedef union
+  {
+    int8_t s8;
+    int16_t s16;
+    int32_t s32;
+    int64_t s64;
+    uint8_t u8;
+    uint16_t u16;
+    uint32_t u32;
+    uint64_t u64;
+    unw_word_t w;
+    void *ptr;
+  }
+dwarf_misaligned_value_t __attribute__ ((packed));
+
+static inline int
+dwarf_reads8 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	      int8_t *val, void *arg)
+{
+  dwarf_misaligned_value_t *mvp = (void *) *addr;
+
+  *val = mvp->s8;
+  *addr += sizeof (mvp->s8);
+  return 0;
+}
+
+static inline int
+dwarf_reads16 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       int16_t *val, void *arg)
+{
+  dwarf_misaligned_value_t *mvp = (void *) *addr;
+
+  *val = mvp->s16;
+  *addr += sizeof (mvp->s16);
+  return 0;
+}
+
+static inline int
+dwarf_reads32 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       int32_t *val, void *arg)
+{
+  dwarf_misaligned_value_t *mvp = (void *) *addr;
+
+  *val = mvp->s32;
+  *addr += sizeof (mvp->s32);
+  return 0;
+}
+
+static inline int
+dwarf_reads64 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       int64_t *val, void *arg)
+{
+  dwarf_misaligned_value_t *mvp = (void *) *addr;
+
+  *val = mvp->s64;
+  *addr += sizeof (mvp->s64);
+  return 0;
+}
+
+static inline int
+dwarf_readu8 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	      uint8_t *val, void *arg)
+{
+  dwarf_misaligned_value_t *mvp = (void *) *addr;
+
+  *val = mvp->u8;
+  *addr += sizeof (mvp->u8);
+  return 0;
+}
+
+static inline int
+dwarf_readu16 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       uint16_t *val, void *arg)
+{
+  dwarf_misaligned_value_t *mvp = (void *) *addr;
+
+  *val = mvp->u16;
+  *addr += sizeof (mvp->u16);
+  return 0;
+}
+
+static inline int
+dwarf_readu32 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       uint32_t *val, void *arg)
+{
+  dwarf_misaligned_value_t *mvp = (void *) *addr;
+
+  *val = mvp->u32;
+  *addr += sizeof (mvp->u32);
+  return 0;
+}
+
+static inline int
+dwarf_readu64 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       uint64_t *val, void *arg)
+{
+  dwarf_misaligned_value_t *mvp = (void *) *addr;
+
+  *val = mvp->u64;
+  *addr += sizeof (mvp->u64);
+  return 0;
+}
+
+static inline int
+dwarf_readw (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	     unw_word_t *val, void *arg)
+{
+  dwarf_misaligned_value_t *mvp = (void *) *addr;
+
+  *val = mvp->w;
+  *addr += sizeof (mvp->w);
+  return 0;
+}
+
+#else /* !UNW_LOCAL_ONLY */
+
+static inline int
+dwarf_readu8 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	      uint8_t *valp, void *arg)
+{
+  unw_word_t val, aligned_addr = *addr & -sizeof (unw_word_t);
+  unw_word_t off = *addr - aligned_addr;
+  int ret;
+
+  *addr += 1;
+  ret = (*a->access_mem) (as, aligned_addr, &val, 0, arg);
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+  val >>= 8*off;
+#else
+  val >>= 8*(sizeof (unw_word_t) - 1 - off);
+#endif
+  *valp = (uint8_t) val;
+  return ret;
+}
+
+static inline int
+dwarf_readu16 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       uint16_t *val, void *arg)
+{
+  uint8_t v0, v1;
+  int ret;
+
+  if ((ret = dwarf_readu8 (as, a, addr, &v0, arg)) < 0
+      || (ret = dwarf_readu8 (as, a, addr, &v1, arg)) < 0)
+    return ret;
+
+  if (tdep_big_endian (as))
+    *val = (uint16_t) v0 << 8 | v1;
+  else
+    *val = (uint16_t) v1 << 8 | v0;
+  return 0;
+}
+
+static inline int
+dwarf_readu32 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       uint32_t *val, void *arg)
+{
+  uint16_t v0, v1;
+  int ret;
+
+  if ((ret = dwarf_readu16 (as, a, addr, &v0, arg)) < 0
+      || (ret = dwarf_readu16 (as, a, addr, &v1, arg)) < 0)
+    return ret;
+
+  if (tdep_big_endian (as))
+    *val = (uint32_t) v0 << 16 | v1;
+  else
+    *val = (uint32_t) v1 << 16 | v0;
+  return 0;
+}
+
+static inline int
+dwarf_readu64 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       uint64_t *val, void *arg)
+{
+  uint32_t v0, v1;
+  int ret;
+
+  if ((ret = dwarf_readu32 (as, a, addr, &v0, arg)) < 0
+      || (ret = dwarf_readu32 (as, a, addr, &v1, arg)) < 0)
+    return ret;
+
+  if (tdep_big_endian (as))
+    *val = (uint64_t) v0 << 32 | v1;
+  else
+    *val = (uint64_t) v1 << 32 | v0;
+  return 0;
+}
+
+static inline int
+dwarf_reads8 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	      int8_t *val, void *arg)
+{
+  uint8_t uval;
+  int ret;
+
+  if ((ret = dwarf_readu8 (as, a, addr, &uval, arg)) < 0)
+    return ret;
+  *val = (int8_t) uval;
+  return 0;
+}
+
+static inline int
+dwarf_reads16 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       int16_t *val, void *arg)
+{
+  uint16_t uval;
+  int ret;
+
+  if ((ret = dwarf_readu16 (as, a, addr, &uval, arg)) < 0)
+    return ret;
+  *val = (int16_t) uval;
+  return 0;
+}
+
+static inline int
+dwarf_reads32 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       int32_t *val, void *arg)
+{
+  uint32_t uval;
+  int ret;
+
+  if ((ret = dwarf_readu32 (as, a, addr, &uval, arg)) < 0)
+    return ret;
+  *val = (int32_t) uval;
+  return 0;
+}
+
+static inline int
+dwarf_reads64 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	       int64_t *val, void *arg)
+{
+  uint64_t uval;
+  int ret;
+
+  if ((ret = dwarf_readu64 (as, a, addr, &uval, arg)) < 0)
+    return ret;
+  *val = (int64_t) uval;
+  return 0;
+}
+
+static inline int
+dwarf_readw (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+	     unw_word_t *val, void *arg)
+{
+  switch (sizeof (unw_word_t))
+    {
+    case 4:
+      return dwarf_readu32 (as, a, addr, (uint32_t *) val, arg);
+
+    case 8:
+      return dwarf_readu64 (as, a, addr, (uint64_t *) val, arg);
+
+    default:
+      abort ();
+    }
+}
+
+#endif /* !UNW_LOCAL_ONLY */
+
+/* Read an unsigned "little-endian base 128" value.  See Chapter 7.6
+   of DWARF spec v3.  */
+
+static inline int
+dwarf_read_uleb128 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+		    unw_word_t *valp, void *arg)
+{
+  unw_word_t val = 0, shift = 0;
+  unsigned char byte;
+  int ret;
+
+  do
+    {
+      if ((ret = dwarf_readu8 (as, a, addr, &byte, arg)) < 0)
+	return ret;
+
+      val |= ((unw_word_t) byte & 0x7f) << shift;
+      shift += 7;
+    }
+  while (byte & 0x80);
+
+  *valp = val;
+  return 0;
+}
+
+/* Read a signed "little-endian base 128" value.  See Chapter 7.6 of
+   DWARF spec v3.  */
+
+static inline int
+dwarf_read_sleb128 (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
+		    unw_word_t *valp, void *arg)
+{
+  unw_word_t val = 0, shift = 0;
+  unsigned char byte;
+  int ret;
+
+  do
+    {
+      if ((ret = dwarf_readu8 (as, a, addr, &byte, arg)) < 0)
+	return ret;
+
+      val |= ((unw_word_t) byte & 0x7f) << shift;
+      shift += 7;
+    }
+  while (byte & 0x80);
+
+  if (shift < 8 * sizeof (unw_word_t) && (byte & 0x40) != 0)
+    /* sign-extend negative value */
+    val |= ((unw_word_t) -1) << shift;
+
+  *valp = val;
+  return 0;
+}
+
+#endif /* DWARF_I_H */

include/remote.h

@@ -0,0 +1,127 @@
+#ifndef REMOTE_H
+#define REMOTE_H
+
+/* Helper functions for accessing (remote) memory.  These functions
+   assume that all addresses are naturally aligned (e.g., 32-bit
+   quantity is stored at a 32-bit-aligned address.  */
+
+#ifdef UNW_LOCAL_ONLY
+
+static inline int
+fetch8 (unw_addr_space_t as, unw_accessors_t *a,
+	unw_word_t *addr, int8_t *valp, void *arg)
+{
+  *valp = *(int8_t *) *addr;
+  *addr += 1;
+  return 0;
+}
+
+static inline int
+fetch16 (unw_addr_space_t as, unw_accessors_t *a,
+	 unw_word_t *addr, int16_t *valp, void *arg)
+{
+  *valp = *(int16_t *) *addr;
+  *addr += 2;
+  return 0;
+}
+
+static inline int
+fetch32 (unw_addr_space_t as, unw_accessors_t *a,
+	 unw_word_t *addr, int32_t *valp, void *arg)
+{
+  *valp = *(int32_t *) *addr;
+  *addr += 4;
+  return 0;
+}
+
+static inline int
+fetchw (unw_addr_space_t as, unw_accessors_t *a,
+	unw_word_t *addr, unw_word_t *valp, void *arg)
+{
+  *valp = *(unw_word_t *) *addr;
+  *addr += sizeof (unw_word_t);
+  return 0;
+}
+
+#else /* !UNW_LOCAL_ONLY */
+
+#define WSIZE	(sizeof (unw_word_t))
+
+static inline int
+fetch8 (unw_addr_space_t as, unw_accessors_t *a,
+	unw_word_t *addr, int8_t *valp, void *arg)
+{
+  unw_word_t val, aligned_addr = *addr & -WSIZE, off = *addr - aligned_addr;
+  int ret;
+
+  *addr += 1;
+
+  ret = (*a->access_mem) (as, aligned_addr, &val, 0, arg);
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+  val >>= 8*off;
+#else
+  val >>= 8*(WSIZE - 1 - off);
+#endif
+  *valp = val & 0xff;
+  return ret;
+}
+
+static inline int
+fetch16 (unw_addr_space_t as, unw_accessors_t *a,
+	 unw_word_t *addr, int16_t *valp, void *arg)
+{
+  unw_word_t val, aligned_addr = *addr & -WSIZE, off = *addr - aligned_addr;
+  int ret;
+
+  assert ((off & 0x1) == 0);
+
+  *addr += 2;
+
+  ret = (*a->access_mem) (as, aligned_addr, &val, 0, arg);
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+  val >>= 8*off;
+#else
+  val >>= 8*(WSIZE - 2 - off);
+#endif
+  *valp = val & 0xffff;
+  return ret;
+}
+
+static inline int
+fetch32 (unw_addr_space_t as, unw_accessors_t *a,
+	 unw_word_t *addr, int32_t *valp, void *arg)
+{
+  unw_word_t val, aligned_addr = *addr & -WSIZE, off = *addr - aligned_addr;
+  int ret;
+
+  assert ((off & 0x3) == 0);
+
+  *addr += 4;
+
+  ret = (*a->access_mem) (as, aligned_addr, &val, 0, arg);
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+  val >>= 8*off;
+#else
+  val >>= 8*(WSIZE - 4 - off);
+#endif
+  *valp = val & 0xffffffff;
+  return ret;
+}
+
+static inline int
+fetchw (unw_addr_space_t as, unw_accessors_t *a,
+	unw_word_t *addr, unw_word_t *valp, void *arg)
+{
+  int ret;
+
+  ret = (*a->access_mem) (as, *addr, valp, 0, arg);
+  *addr += WSIZE;
+  return ret;
+}
+
+#endif /* !UNW_LOCAL_ONLY */
+
+#endif /* REMOTE_H */

src/mi/Gget_fpreg.c

@@ -0,0 +1,34 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2004 Hewlett-Packard Co
+	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+#include "tdep.h"
+
+PROTECTED int
+unw_get_fpreg (unw_cursor_t *cursor, int regnum, unw_fpreg_t *valp)
+{
+  struct cursor *c = (struct cursor *) cursor;
+
+  return tdep_access_fpreg (c, regnum, valp, 0);
+}

src/mi/Gset_fpreg.c

@@ -0,0 +1,34 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2004 Hewlett-Packard Co
+	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+#include "tdep.h"
+
+PROTECTED int
+unw_set_fpreg (unw_cursor_t *cursor, int regnum, unw_fpreg_t val)
+{
+  struct cursor *c = (struct cursor *) cursor;
+
+  return tdep_access_fpreg (c, regnum, &val, 1);
+}

src/mi/Ldestroy_addr_space.c

@@ -0,0 +1,5 @@
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
+#include "Gdestroy_addr_space.c"
+#endif

src/mi/Ldyn-remote.c

@@ -0,0 +1,5 @@
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
+#include "Gdyn-remote.c"
+#endif

src/mi/Lget_accessors.c

@@ -0,0 +1,5 @@
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
+#include "Gget_accessors.c"
+#endif

src/mi/Lget_fpreg.c

@@ -0,0 +1,5 @@
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
+#include "Gget_fpreg.c"
+#endif

src/mi/Lget_reg.c

@@ -0,0 +1,5 @@
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
+#include "Gget_reg.c"
+#endif

src/mi/Lset_caching_policy.c

@@ -0,0 +1,5 @@
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
+#include "Gset_caching_policy.c"
+#endif

src/mi/Lset_fpreg.c

@@ -0,0 +1,5 @@
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
+#include "Gset_fpreg.c"
+#endif

src/mi/Lset_reg.c

@@ -0,0 +1,5 @@
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
+#include "Gset_reg.c"
+#endif

src/x86/Gget_save_loc-x86.c

@@ -0,0 +1,125 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2004 Hewlett-Packard Co
+	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+#include "unwind_i.h"
+
+PROTECTED int
+unw_get_save_loc (unw_cursor_t *cursor, int reg, unw_save_loc_t *sloc)
+{
+  struct cursor *c = (struct cursor *) cursor;
+  dwarf_loc_t loc;
+
+  loc = DWARF_NULL_LOC;		/* default to "not saved" */
+
+  switch (reg)
+    {
+    case UNW_X86_EIP: loc = c->dwarf.loc[EIP]; break;
+    case UNW_X86_CFA: break;
+    case UNW_X86_EAX: loc = c->dwarf.loc[EAX]; break;
+    case UNW_X86_ECX: loc = c->dwarf.loc[ECX]; break;
+    case UNW_X86_EDX: loc = c->dwarf.loc[EDX]; break;
+    case UNW_X86_EBX: loc = c->dwarf.loc[EBX]; break;
+    case UNW_X86_ESP: loc = c->dwarf.loc[ESP]; break;
+    case UNW_X86_EBP: loc = c->dwarf.loc[EBP]; break;
+    case UNW_X86_ESI: loc = c->dwarf.loc[ESI]; break;
+    case UNW_X86_EDI: loc = c->dwarf.loc[EDI]; break;
+    case UNW_X86_EFLAGS: loc = c->dwarf.loc[EFLAGS]; break;
+    case UNW_X86_TRAPNO: loc = c->dwarf.loc[TRAPNO]; break;
+    case UNW_X86_ST0: loc = c->dwarf.loc[ST0]; break;
+
+    case UNW_X86_FCW:
+    case UNW_X86_FSW:
+    case UNW_X86_FTW:
+    case UNW_X86_FOP:
+    case UNW_X86_FCS:
+    case UNW_X86_FIP:
+    case UNW_X86_FEA:
+    case UNW_X86_FDS:
+    case UNW_X86_MXCSR:
+    case UNW_X86_GS:
+    case UNW_X86_FS:
+    case UNW_X86_ES:
+    case UNW_X86_DS:
+    case UNW_X86_SS:
+    case UNW_X86_CS:
+    case UNW_X86_TSS:
+    case UNW_X86_LDT:
+      loc = x86_scratch_loc (c, reg);
+      break;
+
+      /* stacked fp registers */
+    case UNW_X86_ST1:
+    case UNW_X86_ST2:
+    case UNW_X86_ST3:
+    case UNW_X86_ST4:
+    case UNW_X86_ST5:
+    case UNW_X86_ST6:
+    case UNW_X86_ST7:
+      /* SSE fp registers */
+    case UNW_X86_XMM0_lo:
+    case UNW_X86_XMM0_hi:
+    case UNW_X86_XMM1_lo:
+    case UNW_X86_XMM1_hi:
+    case UNW_X86_XMM2_lo:
+    case UNW_X86_XMM2_hi:
+    case UNW_X86_XMM3_lo:
+    case UNW_X86_XMM3_hi:
+    case UNW_X86_XMM4_lo:
+    case UNW_X86_XMM4_hi:
+    case UNW_X86_XMM5_lo:
+    case UNW_X86_XMM5_hi:
+    case UNW_X86_XMM6_lo:
+    case UNW_X86_XMM6_hi:
+    case UNW_X86_XMM7_lo:
+    case UNW_X86_XMM7_hi:
+      loc = x86_scratch_loc (c, reg);
+      break;
+
+    default:
+      break;
+    }
+
+  memset (sloc, 0, sizeof (sloc));
+
+  if (DWARF_IS_NULL_LOC (loc))
+    {
+      sloc->type = UNW_SLT_NONE;
+      return 0;
+    }
+
+#if !defined(UNW_LOCAL_ONLY)
+  if (DWARF_IS_REG_LOC (loc))
+    {
+      sloc->type = UNW_SLT_REG;
+      sloc->u.regnum = DWARF_GET_LOC (loc);
+    }
+  else
+#endif
+    {
+      sloc->type = UNW_SLT_MEMORY;
+      sloc->u.addr = DWARF_GET_LOC (loc);
+    }
+  return 0;
+}

src/x86/Lget_save_loc-x86.c

@@ -0,0 +1,5 @@
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY)
+#include "Gget_save_loc-x86.c"
+#endif