X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fi386obsd-tdep.c;h=1bdc5d6bee79daf44b04981ebc446a44cab63031;hb=cc2c4da8813b980a4e68272bb43583f4af6fe89c;hp=9005304c334ea20345b10439f19731e2f58ed62b;hpb=2c02bd729076b940958bccf68f1cc0b1ecf8403b;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/i386obsd-tdep.c b/gdb/i386obsd-tdep.c
index 9005304c33..1bdc5d6bee 100644
--- a/gdb/i386obsd-tdep.c
+++ b/gdb/i386obsd-tdep.c
@@ -1,7 +1,6 @@
 /* Target-dependent code for OpenBSD/i386.
 
-   Copyright (C) 1988-1989, 1991-1992, 1994, 1996, 2000-2012 Free
-   Software Foundation, Inc.
+   Copyright (C) 1988-2016 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -31,9 +30,7 @@
 #include "target.h"
 #include "trad-frame.h"
 
-#include "gdb_assert.h"
-#include "gdb_string.h"
-
+#include "obsd-tdep.h"
 #include "i386-tdep.h"
 #include "i387-tdep.h"
 #include "solib-svr4.h"
@@ -95,7 +92,7 @@ i386obsd_sigtramp_p (struct frame_info *this_frame)
     return 0;
 
   /* Allocate buffer.  */
-  buf = alloca (buflen);
+  buf = (gdb_byte *) alloca (buflen);
 
   /* Loop over all offsets.  */
   for (offset = i386obsd_sigreturn_offset; *offset != -1; offset++)
@@ -142,8 +139,9 @@ i386obsd_aout_supply_regset (const struct regset *regset,
 			     struct regcache *regcache, int regnum,
 			     const void *regs, size_t len)
 {
-  const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);
-  const gdb_byte *gregs = regs;
+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+  const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+  const gdb_byte *gregs = (const gdb_byte *) regs;
 
   gdb_assert (len >= tdep->sizeof_gregset + I387_SIZEOF_FSAVE);
 
@@ -151,26 +149,24 @@ i386obsd_aout_supply_regset (const struct regset *regset,
   i387_supply_fsave (regcache, regnum, gregs + tdep->sizeof_gregset);
 }
 
-static const struct regset *
-i386obsd_aout_regset_from_core_section (struct gdbarch *gdbarch,
-					const char *sect_name,
-					size_t sect_size)
+static const struct regset i386obsd_aout_gregset =
+  {
+    NULL, i386obsd_aout_supply_regset, NULL
+  };
+
+static void
+i386obsd_aout_iterate_over_regset_sections (struct gdbarch *gdbarch,
+					    iterate_over_regset_sections_cb *cb,
+					    void *cb_data,
+					    const struct regcache *regcache)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
   /* OpenBSD a.out core dumps don't use seperate register sets for the
      general-purpose and floating-point registers.  */
 
-  if (strcmp (sect_name, ".reg") == 0
-      && sect_size >= tdep->sizeof_gregset + I387_SIZEOF_FSAVE)
-    {
-      if (tdep->gregset == NULL)
-        tdep->gregset =
-	  regset_alloc (gdbarch, i386obsd_aout_supply_regset, NULL);
-      return tdep->gregset;
-    }
-
-  return NULL;
+  cb (".reg", tdep->sizeof_gregset + I387_SIZEOF_FSAVE,
+      &i386obsd_aout_gregset, NULL, cb_data);
 }
 
 
@@ -352,7 +348,7 @@ i386obsd_trapframe_cache (struct frame_info *this_frame, void **this_cache)
   int i;
 
   if (*this_cache)
-    return *this_cache;
+    return (struct trad_frame_cache *) *this_cache;
 
   cache = trad_frame_cache_zalloc (this_frame);
   *this_cache = cache;
@@ -361,7 +357,7 @@ i386obsd_trapframe_cache (struct frame_info *this_frame, void **this_cache)
   sp = get_frame_register_unsigned (this_frame, I386_ESP_REGNUM);
 
   find_pc_partial_function (func, &name, NULL, NULL);
-  if (name && strncmp (name, "Xintr", 5) == 0)
+  if (name && startswith (name, "Xintr"))
     addr = sp + 8;		/* It's an interrupt frame.  */
   else
     addr = sp;
@@ -424,8 +420,8 @@ i386obsd_trapframe_sniffer (const struct frame_unwind *self,
   find_pc_partial_function (get_frame_pc (this_frame), &name, NULL, NULL);
   return (name && (strcmp (name, "calltrap") == 0
 		   || strcmp (name, "syscall1") == 0
-		   || strncmp (name, "Xintr", 5) == 0
-		   || strncmp (name, "Xsoft", 5) == 0));
+		   || startswith (name, "Xintr")
+		   || startswith (name, "Xsoft")));
 }
 
 static const struct frame_unwind i386obsd_trapframe_unwind = {
@@ -448,6 +444,7 @@ i386obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 
   /* Obviously OpenBSD is BSD-based.  */
   i386bsd_init_abi (info, gdbarch);
+  obsd_init_abi (info, gdbarch);
 
   /* OpenBSD has a different `struct reg'.  */
   tdep->gregset_reg_offset = i386obsd_r_reg_offset;
@@ -483,8 +480,8 @@ i386obsd_aout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   i386obsd_init_abi (info, gdbarch);
 
   /* OpenBSD a.out has a single register set.  */
-  set_gdbarch_regset_from_core_section
-    (gdbarch, i386obsd_aout_regset_from_core_section);
+  set_gdbarch_iterate_over_regset_sections
+    (gdbarch, i386obsd_aout_iterate_over_regset_sections);
 }
 
 /* OpenBSD ELF.  */