Don't recursively look for a symbol in all imports of imported modules.

[deliverable/binutils-gdb.git] / gdb / vaxobsd-tdep.c

diff --git a/gdb/vaxobsd-tdep.c b/gdb/vaxobsd-tdep.c
index 843982c07692c40449a00147b4209a4675457785..ee48ac62a7ff731dc40c1a9ff9817999d376f387 100644 (file)
--- a/gdb/vaxobsd-tdep.c
+++ b/gdb/vaxobsd-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for OpenBSD/vax.
 
-   Copyright (C) 2005, 2007, 2008 Free Software Foundation, Inc.
+   Copyright (C) 2005-2016 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -27,8 +27,6 @@
 
 #include "vax-tdep.h"
 
-#include "gdb_string.h"
-
 /* Signal trampolines.  */
 
 /* Since OpenBSD 3.2, the sigtramp routine is mapped at a random page
@@ -57,20 +55,22 @@ static const gdb_byte vaxobsd_sigreturn[] = {
 };
 
 static int
-vaxobsd_sigtramp_p (struct frame_info *next_frame)
+vaxobsd_sigtramp_sniffer (const struct frame_unwind *self,
+                         struct frame_info *this_frame,
+                         void **this_cache)
 {
-  CORE_ADDR pc = frame_pc_unwind (next_frame);
+  CORE_ADDR pc = get_frame_pc (this_frame);
   CORE_ADDR start_pc = (pc & ~(vaxobsd_page_size - 1));
   CORE_ADDR sigreturn_addr = start_pc + vaxobsd_sigreturn_offset;
   gdb_byte *buf;
-  char *name;
+  const char *name;
 
   find_pc_partial_function (pc, &name, NULL, NULL);
   if (name)
     return 0;
 
-  buf = alloca(sizeof vaxobsd_sigreturn);
-  if (!safe_frame_unwind_memory (next_frame, sigreturn_addr,
+  buf = (gdb_byte *) alloca (sizeof vaxobsd_sigreturn);
+  if (!safe_frame_unwind_memory (this_frame, sigreturn_addr,
                                 buf, sizeof vaxobsd_sigreturn))
     return 0;
 
@@ -81,22 +81,22 @@ vaxobsd_sigtramp_p (struct frame_info *next_frame)
 }
 
 static struct trad_frame_cache *
-vaxobsd_sigtramp_frame_cache (struct frame_info *next_frame, void **this_cache)
+vaxobsd_sigtramp_frame_cache (struct frame_info *this_frame, void **this_cache)
 {
   struct trad_frame_cache *cache;
   CORE_ADDR addr, base, func;
 
   if (*this_cache)
-    return *this_cache;
+    return (struct trad_frame_cache *) *this_cache;
 
-  cache = trad_frame_cache_zalloc (next_frame);
+  cache = trad_frame_cache_zalloc (this_frame);
   *this_cache = cache;
 
-  func = frame_pc_unwind (next_frame);
+  func = get_frame_pc (this_frame);
   func &= ~(vaxobsd_page_size - 1);
 
-  base = frame_unwind_register_unsigned (next_frame, VAX_SP_REGNUM);
-  addr = get_frame_memory_unsigned (next_frame, base - 4, 4);
+  base = get_frame_register_unsigned (this_frame, VAX_SP_REGNUM);
+  addr = get_frame_memory_unsigned (this_frame, base - 4, 4);
 
   trad_frame_set_reg_addr (cache, VAX_SP_REGNUM, addr + 8);
   trad_frame_set_reg_addr (cache, VAX_FP_REGNUM, addr + 12);
@@ -111,43 +111,33 @@ vaxobsd_sigtramp_frame_cache (struct frame_info *next_frame, void **this_cache)
 }
 
 static void
-vaxobsd_sigtramp_frame_this_id (struct frame_info *next_frame,
+vaxobsd_sigtramp_frame_this_id (struct frame_info *this_frame,
                                void **this_cache, struct frame_id *this_id)
 {
   struct trad_frame_cache *cache =
-    vaxobsd_sigtramp_frame_cache (next_frame, this_cache);
+    vaxobsd_sigtramp_frame_cache (this_frame, this_cache);
 
   trad_frame_get_id (cache, this_id);
 }
 
-static void
-vaxobsd_sigtramp_frame_prev_register (struct frame_info *next_frame,
-                                     void **this_cache, int regnum,
-                                     int *optimizedp, enum lval_type *lvalp,
-                                     CORE_ADDR *addrp, int *realnump,
-                                     gdb_byte *valuep)
+static struct value *
+vaxobsd_sigtramp_frame_prev_register (struct frame_info *this_frame,
+                                     void **this_cache, int regnum)
 {
   struct trad_frame_cache *cache =
-    vaxobsd_sigtramp_frame_cache (next_frame, this_cache);
+    vaxobsd_sigtramp_frame_cache (this_frame, this_cache);
 
-  trad_frame_get_register (cache, next_frame, regnum,
-                          optimizedp, lvalp, addrp, realnump, valuep);
+  return trad_frame_get_register (cache, this_frame, regnum);
 }
 
 static const struct frame_unwind vaxobsd_sigtramp_frame_unwind = {
   SIGTRAMP_FRAME,
+  default_frame_unwind_stop_reason,
   vaxobsd_sigtramp_frame_this_id,
-  vaxobsd_sigtramp_frame_prev_register
+  vaxobsd_sigtramp_frame_prev_register,
+  NULL,
+  vaxobsd_sigtramp_sniffer
 };
-
-static const struct frame_unwind *
-vaxobsd_sigtramp_frame_sniffer (struct frame_info *next_frame)
-{
-  if (vaxobsd_sigtramp_p (next_frame))
-    return &vaxobsd_sigtramp_frame_unwind;
-
-  return NULL;
-}
 \f
 
 /* OpenBSD a.out.  */
@@ -155,7 +145,7 @@ vaxobsd_sigtramp_frame_sniffer (struct frame_info *next_frame)
 static void
 vaxobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
-  frame_unwind_append_sniffer (gdbarch, vaxobsd_sigtramp_frame_sniffer);
+  frame_unwind_append_unwinder (gdbarch, &vaxobsd_sigtramp_frame_unwind);
 }
 
 /* FIXME: kettenis/20050821: Since OpenBSD/vax binaries are