bfd/

2007-08-16  H.J. Lu  <hongjiu.lu@intel.com>

	* elf.c (get_segment_type): Change PT_GNU_STACK to PT_GNU_ATTR.
	(bfd_section_from_phdr): Likewise.
	(get_program_header_size): Likewise. Add a PT_GNU_ATTR segment
	if there is an attribute section.
	(_bfd_elf_map_sections_to_segments): Likewise.
	(IS_SECTION_IN_INPUT_SEGMENT): Likewise.

binutils/

2007-08-16  H.J. Lu  <hongjiu.lu@intel.com>

	* readelf.c (get_segment_type): Change PT_GNU_STACK to
	PT_GNU_ATTR.

include/elf/

2007-08-16  H.J. Lu  <hongjiu.lu@intel.com>

	* common.h (PT_GNU_STACK): Renamed to ...
	(PT_GNU_ATTR): This.
	(PT_GNU_STACK): New.  Make an alias of PT_GNU_ATTR.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 5f5d291c7f62539f2857263355836641eaa30d8e..c5dbc97a6ec6beec419ae8bb73c7a04b3d1c57df 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,12 @@
+2007-08-16  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * elf.c (get_segment_type): Change PT_GNU_STACK to PT_GNU_ATTR.
+       (bfd_section_from_phdr): Likewise.
+       (get_program_header_size): Likewise. Add a PT_GNU_ATTR segment
+       if there is an attribute section.
+       (_bfd_elf_map_sections_to_segments): Likewise.
+       (IS_SECTION_IN_INPUT_SEGMENT): Likewise.
+
 2007-08-14  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR ld/4918

diff --git a/bfd/elf.c b/bfd/elf.c
index ae3af35ee2cea7bcdcdd1e6aa18c7439fb939ab2..b0e7cee065dd73171ede8389f3dbf1aa15b3741c 100644 (file)
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -1083,7 +1083,7 @@ get_segment_type (unsigned int p_type)
     case PT_PHDR: pt = "PHDR"; break;
     case PT_TLS: pt = "TLS"; break;
     case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break;
-    case PT_GNU_STACK: pt = "STACK"; break;
+    case PT_GNU_ATTR: pt = "ATTR"; break;
     case PT_GNU_RELRO: pt = "RELRO"; break;
     default: pt = NULL; break;
     }
@@ -2355,8 +2355,8 @@ bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int index)
       return _bfd_elf_make_section_from_phdr (abfd, hdr, index,
                                              "eh_frame_hdr");
 
-    case PT_GNU_STACK:
-      return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "stack");
+    case PT_GNU_ATTR:
+      return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "attr");
 
     case PT_GNU_RELRO:
       return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "relro");
@@ -3300,7 +3300,8 @@ get_program_header_size (bfd *abfd, struct bfd_link_info *info)
 {
   size_t segs;
   asection *s;
-  const struct elf_backend_data *bed;
+  asection *attr = NULL;
+  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
 
   /* Assume we will need exactly two PT_LOAD segments: one for text
      and one for data.  */
@@ -3335,14 +3336,26 @@ get_program_header_size (bfd *abfd, struct bfd_link_info *info)
       ++segs;
     }
 
-  if (elf_tdata (abfd)->stack_flags)
-    {
-      /* We need a PT_GNU_STACK segment.  */
-      ++segs;
-    }
-
   for (s = abfd->sections; s != NULL; s = s->next)
     {
+      if (elf_section_type (s) == bed->obj_attrs_section_type)
+       {
+         BFD_ASSERT (attr == NULL);
+         attr = s;
+
+         /* elf_tdata (abfd)->stack_flags is checked for the
+            PT_GNU_ATTR segment.  If there is an attribute
+            section, we make sure that stack_flags isn't zero so
+            that the PT_GNU_ATTR segment will be created.  */
+         if (! elf_tdata (abfd)->stack_flags)
+           {
+             if (bed->default_execstack)
+               elf_tdata (abfd)->stack_flags = PF_R | PF_W | PF_X;
+             else
+               elf_tdata (abfd)->stack_flags = PF_R | PF_W;
+           }
+       }
+
       if ((s->flags & SEC_LOAD) != 0
          && CONST_STRNEQ (s->name, ".note"))
        {
@@ -3364,6 +3377,12 @@ get_program_header_size (bfd *abfd, struct bfd_link_info *info)
        }
     }
 
+  if (elf_tdata (abfd)->stack_flags)
+    {
+      /* We need a PT_GNU_ATTR segment.  */
+      ++segs;
+    }
+
   for (s = abfd->sections; s != NULL; s = s->next)
     {
       if (s->flags & SEC_THREAD_LOCAL)
@@ -3375,7 +3394,6 @@ get_program_header_size (bfd *abfd, struct bfd_link_info *info)
     }
 
   /* Let the backend count up any program headers it might need.  */
-  bed = get_elf_backend_data (abfd);
   if (bed->elf_backend_additional_program_headers)
     {
       int a;
@@ -3520,6 +3538,7 @@ _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info)
       asection *first_tls = NULL;
       asection *dynsec, *eh_frame_hdr;
       bfd_size_type amt;
+      asection *attr = NULL;
 
       /* Select the allocated sections, and sort them.  */
 
@@ -3530,6 +3549,12 @@ _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info)
       i = 0;
       for (s = abfd->sections; s != NULL; s = s->next)
        {
+         if (elf_section_type (s) == bed->obj_attrs_section_type)
+           {
+             BFD_ASSERT (attr == NULL);
+             attr = s;
+           }
+
          if ((s->flags & SEC_ALLOC) != 0)
            {
              sections[i] = s;
@@ -3843,10 +3868,17 @@ _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info)
          if (m == NULL)
            goto error_return;
          m->next = NULL;
-         m->p_type = PT_GNU_STACK;
+         m->p_type = PT_GNU_ATTR;
          m->p_flags = elf_tdata (abfd)->stack_flags;
          m->p_flags_valid = 1;
 
+         if (attr)
+           {
+             /* Add the attribute section if needed.  */
+             m->count = 1;
+             m->sections[0] = attr;
+           } 
+
          *pm = m;
          pm = &m->next;
        }
@@ -5033,31 +5065,33 @@ rewrite_elf_program_header (bfd *ibfd, bfd *obfd)
        2. It is an allocated segment,
        3. There is an output section associated with it,
        4. The section has not already been allocated to a previous segment.
-       5. PT_GNU_STACK segments do not include any sections.
+       5. PT_GNU_ATTR only contains attribute section.
        6. PT_TLS segment includes only SHF_TLS sections.
        7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments.
        8. PT_DYNAMIC should not contain empty sections at the beginning
          (with the possible exception of .dynamic).  */
 #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed)             \
-  ((((segment->p_paddr                                                 \
-      ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr)       \
-      : IS_CONTAINED_BY_VMA (section, segment))                                \
-     && (section->flags & SEC_ALLOC) != 0)                             \
-    || IS_COREFILE_NOTE (segment, section))                            \
-   && segment->p_type != PT_GNU_STACK                                  \
-   && (segment->p_type != PT_TLS                                       \
-       || (section->flags & SEC_THREAD_LOCAL))                         \
-   && (segment->p_type == PT_LOAD                                      \
-       || segment->p_type == PT_TLS                                    \
-       || (section->flags & SEC_THREAD_LOCAL) == 0)                    \
-   && (segment->p_type != PT_DYNAMIC                                   \
-       || SECTION_SIZE (section, segment) > 0                          \
-       || (segment->p_paddr                                            \
-          ? segment->p_paddr != section->lma                           \
-          : segment->p_vaddr != section->vma)                          \
-       || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic")   \
-          == 0))                                                       \
-   && ! section->segment_mark)
+  ((segment->p_type == PT_GNU_ATTR                                     \
+    && elf_section_type (section) == bed->obj_attrs_section_type)      \
+   || ((((segment->p_paddr                                             \
+         ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr)    \
+         : IS_CONTAINED_BY_VMA (section, segment))                     \
+        && (section->flags & SEC_ALLOC) != 0)                          \
+       || IS_COREFILE_NOTE (segment, section))                         \
+       && segment->p_type != PT_GNU_ATTR                               \
+       && (segment->p_type != PT_TLS                                   \
+          || (section->flags & SEC_THREAD_LOCAL))                      \
+       && (segment->p_type == PT_LOAD                                  \
+          || segment->p_type == PT_TLS                                 \
+          || (section->flags & SEC_THREAD_LOCAL) == 0)                 \
+       && (segment->p_type != PT_DYNAMIC                               \
+          || SECTION_SIZE (section, segment) > 0                       \
+          || (segment->p_paddr                                         \
+              ? segment->p_paddr != section->lma                       \
+              : segment->p_vaddr != section->vma)                      \
+          || (strcmp (bfd_get_section_name (ibfd, section),            \
+                      ".dynamic") == 0))                               \
+       && ! section->segment_mark))
 
 /* If the output section of a section in the input segment is NULL,
    it is removed from the corresponding output segment.   */

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 352e7227b09a1bb84064dacb9cc79dfdacdc78ad..6522f1d279d7267c63c508cbd31145c16c0d7b6f 100644 (file)
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,8 @@
+2007-08-16  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * readelf.c (get_segment_type): Change PT_GNU_STACK to
+       PT_GNU_ATTR.
+
 2007-08-12  Daniel Jacobowitz  <dan@codesourcery.com>
 
        * NEWS: Add a marker for the 2.18 features.

diff --git a/binutils/readelf.c b/binutils/readelf.c
index 7e3058496c166b1039a3f4fd15643009c326550a..69bd55d4781093afdbab28812e4db4f03b532031 100644 (file)
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -2467,7 +2467,7 @@ get_segment_type (unsigned long p_type)
 
     case PT_GNU_EH_FRAME:
                        return "GNU_EH_FRAME";
-    case PT_GNU_STACK: return "GNU_STACK";
+    case PT_GNU_ATTR:  return "GNU_ATTR";
     case PT_GNU_RELRO:  return "GNU_RELRO";
 
     default:

diff --git a/include/elf/ChangeLog b/include/elf/ChangeLog
index 8341638d25ce98a6c1dfa6c3195787f3ac222c98..5f2fa543a2a7a0e6ce0bfbba283327caa19eac32 100644 (file)
--- a/include/elf/ChangeLog
+++ b/include/elf/ChangeLog
@@ -1,3 +1,9 @@
+2007-08-16  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * common.h (PT_GNU_STACK): Renamed to ...
+       (PT_GNU_ATTR): This.
+       (PT_GNU_STACK): New.  Make an alias of PT_GNU_ATTR.
+
 2007-07-09  Roland McGrath  <roland@redhat.com>
 
        * common.h (NT_GNU_HWCAP, NT_GNU_BUILD_ID): New macros.

diff --git a/include/elf/common.h b/include/elf/common.h
index bc9a5cf2edb68b67dc9a92781dea68f484af1ee1..2bba1e2a1a4f15e2e4e1e89bab8d86be46e6d7b3 100644 (file)
--- a/include/elf/common.h
+++ b/include/elf/common.h
@@ -307,7 +307,8 @@
 
 #define PT_GNU_EH_FRAME        (PT_LOOS + 0x474e550) /* Frame unwind information */
 #define PT_SUNW_EH_FRAME PT_GNU_EH_FRAME      /* Solaris uses the same value */
-#define PT_GNU_STACK   (PT_LOOS + 0x474e551) /* Stack flags */
+#define PT_GNU_ATTR    (PT_LOOS + 0x474e551) /* Attribute info */
+#define PT_GNU_STACK   PT_GNU_ATTR           /* Stack flags */
 #define PT_GNU_RELRO   (PT_LOOS + 0x474e552) /* Read-only after relocation */
 
 /* Program segment permissions, in program header p_flags field.  */