gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdb / stap-probe.c

diff --git a/gdb/stap-probe.c b/gdb/stap-probe.c
index 39da2900e7af30d0c24702019c8b835038b0b646..73596446cce51d94e789b1ff3584b8fec807b5a1 100644 (file)
--- a/gdb/stap-probe.c
+++ b/gdb/stap-probe.c
@@ -1290,8 +1290,7 @@ stap_probe::parse_arguments (struct gdbarch *gdbarch)
 static CORE_ADDR
 relocate_address (CORE_ADDR address, struct objfile *objfile)
 {
-  return address + ANOFFSET (objfile->section_offsets,
-                            SECT_OFF_DATA (objfile));
+  return address + objfile->data_section_offset ();
 }
 
 /* Implementation of the get_relocated_address method.  */
@@ -1431,9 +1430,6 @@ stap_modify_semaphore (CORE_ADDR address, int set, struct gdbarch *gdbarch)
   struct type *type = builtin_type (gdbarch)->builtin_unsigned_short;
   ULONGEST value;
 
-  if (address == 0)
-    return;
-
   /* Swallow errors.  */
   if (target_read_memory (address, bytes, TYPE_LENGTH (type)) != 0)
     {
@@ -1467,6 +1463,8 @@ stap_modify_semaphore (CORE_ADDR address, int set, struct gdbarch *gdbarch)
 void
 stap_probe::set_semaphore (struct objfile *objfile, struct gdbarch *gdbarch)
 {
+  if (m_sem_addr == 0)
+    return;
   stap_modify_semaphore (relocate_address (m_sem_addr, objfile), 1, gdbarch);
 }
 
@@ -1475,6 +1473,8 @@ stap_probe::set_semaphore (struct objfile *objfile, struct gdbarch *gdbarch)
 void
 stap_probe::clear_semaphore (struct objfile *objfile, struct gdbarch *gdbarch)
 {
+  if (m_sem_addr == 0)
+    return;
   stap_modify_semaphore (relocate_address (m_sem_addr, objfile), 0, gdbarch);
 }
 
@@ -1517,7 +1517,7 @@ handle_stap_probe (struct objfile *objfile, struct sdt_note *el,
 {
   bfd *abfd = objfile->obfd;
   int size = bfd_get_arch_size (abfd) / 8;
-  struct gdbarch *gdbarch = get_objfile_arch (objfile);
+  struct gdbarch *gdbarch = objfile->arch ();
   struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
 
   /* Provider and the name of the probe.  */
@@ -1606,7 +1606,7 @@ get_stap_base_address (bfd *obfd, bfd_vma *base)
     {
       complaint (_("could not obtain base address for "
                                        "SystemTap section on objfile `%s'."),
-                obfd->filename);
+                bfd_get_filename (obfd));
       return 0;
     }
 
@@ -1709,8 +1709,9 @@ info_probes_stap_command (const char *arg, int from_tty)
   info_probes_for_spops (arg, from_tty, &stap_static_probe_ops);
 }
 
+void _initialize_stap_probe ();
 void
-_initialize_stap_probe (void)
+_initialize_stap_probe ()
 {
   all_static_probe_ops.push_back (&stap_static_probe_ops);