PR22374 testcase, function pointer references in .data

[deliverable/binutils-gdb.git] / bfd / elfn32-mips.c

diff --git a/bfd/elfn32-mips.c b/bfd/elfn32-mips.c
index c09713ad532d851e57bec3608decaffbb8ed6509..9ac2da3689d5d233f02dcf1d588623fba130cba3 100644 (file)
--- a/bfd/elfn32-mips.c
+++ b/bfd/elfn32-mips.c
@@ -80,8 +80,12 @@ static bfd_boolean elf32_mips_grok_prstatus
   (bfd *, Elf_Internal_Note *);
 static bfd_boolean elf32_mips_grok_psinfo
   (bfd *, Elf_Internal_Note *);
+static bfd_boolean elf_n32_mips_grok_freebsd_prstatus
+  (bfd *, Elf_Internal_Note *);
 static irix_compat_t elf_n32_mips_irix_compat
   (bfd *);
+static bfd_boolean mips_elf_n32_mkobject
+  (bfd *);
 
 extern const bfd_target mips_elf32_n_be_vec;
 extern const bfd_target mips_elf32_n_le_vec;
@@ -3578,6 +3582,56 @@ elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
 
   return TRUE;
 }
+
+static bfd_boolean
+elf_n32_mips_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note)
+{
+  size_t offset;
+  size_t size;
+  size_t min_size;
+
+  /* Compute offset of pr_getregsz, skipping over pr_statussz.
+     Also compute minimum size of this note.  */
+  offset = 4 + 4;
+  min_size = offset + 4 * 2 + 4 + 4 + 4;
+
+  if (note->descsz < min_size)
+    return FALSE;
+
+  /* Check for version 1 in pr_version.  */
+  if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1)
+    return FALSE;
+
+  /* Extract size of pr_reg from pr_gregsetsz.  */
+  /* Skip over pr_gregsetsz and pr_fpregsetsz.  */
+  size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset);
+  offset += 4 * 2;
+
+  /* Skip over pr_osreldate.  */
+  offset += 4;
+
+  /* Read signal from pr_cursig.  */
+  if (elf_tdata (abfd)->core->signal == 0)
+    elf_tdata (abfd)->core->signal
+      = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset);
+  offset += 4;
+
+  /* Read TID from pr_pid.  */
+  elf_tdata (abfd)->core->lwpid
+      = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset);
+  offset += 4;
+
+  /* Padding before pr_reg.  */
+  offset += 4;
+
+  /* Make sure that there is enough data remaining in the note.  */
+  if (note->descsz - offset < size)
+    return FALSE;
+
+  /* Make a ".reg/999" section and a ".reg" section.  */
+  return _bfd_elfcore_make_pseudosection (abfd, ".reg",
+                                         size, note->descpos + offset);
+}
 \f
 /* Depending on the target vector we generate some version of Irix
    executables or "normal" MIPS ELF ABI executables.  */
@@ -3591,6 +3645,21 @@ elf_n32_mips_irix_compat (bfd *abfd)
     return ict_none;
 }
 \f
+/* Make an n32 MIPS object.  We need to set the n32 ABI flag in
+   `e_flags' to tell the object apart from an o32 object.  */
+
+static bfd_boolean
+mips_elf_n32_mkobject (bfd *abfd)
+{
+  bfd_boolean ret;
+
+  ret = _bfd_mips_elf_mkobject (abfd);
+  if (ret)
+    elf_elfheader (abfd)->e_flags |= EF_MIPS_ABI2;
+
+  return ret;
+}
+\f
 /* ECOFF swapping routines.  These are used when dealing with the
    .mdebug section, which is in the ECOFF debugging format.  */
 static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
@@ -3684,6 +3753,8 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
                                        _bfd_mips_elf_copy_indirect_symbol
 #define elf_backend_grok_prstatus      elf32_mips_grok_prstatus
 #define elf_backend_grok_psinfo                elf32_mips_grok_psinfo
+#define elf_backend_grok_freebsd_prstatus \
+                                       elf_n32_mips_grok_freebsd_prstatus
 #define elf_backend_ecoff_debug_swap   &mips_elf32_ecoff_debug_swap
 
 #define elf_backend_got_header_size    (4 * MIPS_RESERVED_GOTNO)
@@ -3721,8 +3792,7 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
 #define bfd_elf32_bfd_set_private_flags        _bfd_mips_elf_set_private_flags
 #define bfd_elf32_bfd_print_private_bfd_data \
                                        _bfd_mips_elf_print_private_bfd_data
-#define bfd_elf32_bfd_relax_section     _bfd_mips_relax_section
-#define bfd_elf32_mkobject             _bfd_mips_elf_mkobject
+#define bfd_elf32_mkobject             mips_elf_n32_mkobject
 
 /* Support for SGI-ish mips targets using n32 ABI.  */