From David S. Miller <davem@redhat.com>:

* gdbarch.sh (SKIP_SOLIB_RESOLVER): New method.
* gdbarch.c, gdbarch.h: Regenerated.
* arch-utils.c (generic_skip_solib_resolver): New function.
* arch-utils.h (generic_skip_solib_resolver): New prototype.
* infrun.c (SKIP_SOLIB_RESOLVER): Don't define.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index d636126..b40dee9 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,12 @@
+2003-11-09  Mark Kettenis  <kettenis@gnu.org>
+
+       From David S. Miller  <davem@redhat.com>:
+       * gdbarch.sh (SKIP_SOLIB_RESOLVER): New method.
+       * gdbarch.c, gdbarch.h: Regenerated.
+       * arch-utils.c (generic_skip_solib_resolver): New function.
+       * arch-utils.h (generic_skip_solib_resolver): New prototype.
+       * infrun.c (SKIP_SOLIB_RESOLVER): Don't define.
+
 2003-11-07  Andrew Cagney  <cagney@redhat.com>
 
        * top.c (print_gdb_version): Replace STREQ with strcmp.

diff --git a/gdb/arch-utils.c b/gdb/arch-utils.c
index 21c5682..2c564e7 100644 (file)
--- a/gdb/arch-utils.c
+++ b/gdb/arch-utils.c
@@ -100,6 +100,12 @@ generic_skip_trampoline_code (CORE_ADDR pc)
   return 0;
 }
 
+CORE_ADDR
+generic_skip_solib_resolver (CORE_ADDR pc)
+{
+  return 0;
+}
+
 int
 generic_in_solib_call_trampoline (CORE_ADDR pc, char *name)
 {

diff --git a/gdb/arch-utils.h b/gdb/arch-utils.h
index 27df54d..a180fda 100644 (file)
--- a/gdb/arch-utils.h
+++ b/gdb/arch-utils.h
@@ -110,6 +110,8 @@ extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer;
 
 extern CORE_ADDR generic_skip_trampoline_code (CORE_ADDR pc);
 
+extern CORE_ADDR generic_skip_solib_resolver (CORE_ADDR pc);
+
 extern int generic_in_solib_call_trampoline (CORE_ADDR pc, char *name);
 
 extern int generic_in_solib_return_trampoline (CORE_ADDR pc, char *name);

diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c
index 8198bb0..75652a8 100644 (file)
--- a/gdb/gdbarch.c
+++ b/gdb/gdbarch.c
@@ -252,6 +252,7 @@ struct gdbarch
   gdbarch_software_single_step_ftype *software_single_step;
   gdbarch_print_insn_ftype *print_insn;
   gdbarch_skip_trampoline_code_ftype *skip_trampoline_code;
+  gdbarch_skip_solib_resolver_ftype *skip_solib_resolver;
   gdbarch_in_solib_call_trampoline_ftype *in_solib_call_trampoline;
   gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline;
   gdbarch_pc_in_sigtramp_ftype *pc_in_sigtramp;
@@ -424,6 +425,7 @@ struct gdbarch startup_gdbarch =
   0,  /* software_single_step */
   0,  /* print_insn */
   0,  /* skip_trampoline_code */
+  0,  /* skip_solib_resolver */
   0,  /* in_solib_call_trampoline */
   0,  /* in_solib_return_trampoline */
   0,  /* pc_in_sigtramp */
@@ -553,6 +555,7 @@ gdbarch_alloc (const struct gdbarch_info *info,
   current_gdbarch->addr_bits_remove = core_addr_identity;
   current_gdbarch->smash_text_address = core_addr_identity;
   current_gdbarch->skip_trampoline_code = generic_skip_trampoline_code;
+  current_gdbarch->skip_solib_resolver = generic_skip_solib_resolver;
   current_gdbarch->in_solib_call_trampoline = generic_in_solib_call_trampoline;
   current_gdbarch->in_solib_return_trampoline = generic_in_solib_return_trampoline;
   current_gdbarch->pc_in_sigtramp = legacy_pc_in_sigtramp;
@@ -756,6 +759,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
       && (gdbarch->print_insn == 0))
     fprintf_unfiltered (log, "\n\tprint_insn");
   /* Skip verify of skip_trampoline_code, invalid_p == 0 */
+  /* Skip verify of skip_solib_resolver, invalid_p == 0 */
   /* Skip verify of in_solib_call_trampoline, invalid_p == 0 */
   /* Skip verify of in_solib_return_trampoline, invalid_p == 0 */
   /* Skip verify of pc_in_sigtramp, invalid_p == 0 */
@@ -2225,6 +2229,16 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
                       (long) current_gdbarch->skip_prologue
                       /*SKIP_PROLOGUE ()*/);
 #endif
+#ifdef SKIP_SOLIB_RESOLVER
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: %s # %s\n",
+                      "SKIP_SOLIB_RESOLVER(pc)",
+                      XSTRING (SKIP_SOLIB_RESOLVER (pc)));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: SKIP_SOLIB_RESOLVER = <0x%08lx>\n",
+                      (long) current_gdbarch->skip_solib_resolver
+                      /*SKIP_SOLIB_RESOLVER ()*/);
+#endif
 #ifdef SKIP_TRAMPOLINE_CODE
   fprintf_unfiltered (file,
                       "gdbarch_dump: %s # %s\n",
@@ -5211,6 +5225,23 @@ set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch,
   gdbarch->skip_trampoline_code = skip_trampoline_code;
 }
 
+CORE_ADDR
+gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->skip_solib_resolver != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_skip_solib_resolver called\n");
+  return gdbarch->skip_solib_resolver (pc);
+}
+
+void
+set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch,
+                                 gdbarch_skip_solib_resolver_ftype skip_solib_resolver)
+{
+  gdbarch->skip_solib_resolver = skip_solib_resolver;
+}
+
 int
 gdbarch_in_solib_call_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name)
 {

diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index 36e0e7a..021ab36 100644 (file)
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -2134,6 +2134,20 @@ extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_s
 #define SKIP_TRAMPOLINE_CODE(pc) (gdbarch_skip_trampoline_code (current_gdbarch, pc))
 #endif
 
+/* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
+   evaluates non-zero, this is the address where the debugger will place
+   a step-resume breakpoint to get us past the dynamic linker. */
+
+typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (CORE_ADDR pc);
+extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
+extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
+#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (SKIP_SOLIB_RESOLVER)
+#error "Non multi-arch definition of SKIP_SOLIB_RESOLVER"
+#endif
+#if !defined (SKIP_SOLIB_RESOLVER)
+#define SKIP_SOLIB_RESOLVER(pc) (gdbarch_skip_solib_resolver (current_gdbarch, pc))
+#endif
+
 /* For SVR4 shared libraries, each call goes through a small piece of
    trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
    to nonzero if we are currently stopped in one of these. */

diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh
index d11e2fa..c1c39f6 100755 (executable)
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -700,6 +700,10 @@ f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:v
 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 
 
+# If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
+# evaluates non-zero, this is the address where the debugger will place
+# a step-resume breakpoint to get us past the dynamic linker.
+f:2:SKIP_SOLIB_RESOLVER:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc:::generic_skip_solib_resolver::0
 # For SVR4 shared libraries, each call goes through a small piece of
 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 # to nonzero if we are currently stopped in one of these.

diff --git a/gdb/infrun.c b/gdb/infrun.c
index 3a8e121..6bc22a6 100644 (file)
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -153,10 +153,6 @@ static int may_follow_exec = MAY_FOLLOW_EXEC;
 #define IN_SOLIB_DYNSYM_RESOLVE_CODE(pc) 0
 #endif
 
-#ifndef SKIP_SOLIB_RESOLVER
-#define SKIP_SOLIB_RESOLVER(pc) 0
-#endif
-
 /* This function returns TRUE if pc is the address of an instruction
    that lies within the dynamic linker (such as the event hook, or the
    dld itself).