Add support for generating DWARF2 debug sections in the x86 PE port

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 7f26f18..4c3f11b 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,17 @@
+2004-04-29  Brian Ford  <ford@vss.fsi.com>
+
+       * bfd.c (bfd_get_sign_extend_vma): Add pe[i]-i386 case to DJGPP hack.
+       * coffcode.h (DOT_DEBUG, GNU_LINKONCE_WI): Define.
+       [!COFF_WITH_PE] (sec_to_styp_flags, styp_to_sec_flags): Use them.
+       (coff_compute_section_file_positions) [RS6000COFF_C]: Likewise.
+       [COFF_WITH_PE] (sec_to_styp_flags): Handle DWARF 2/3 .debug* and
+       .gnu.linkonce.wi. sections.
+       * pe-i386.c (COFF_SUPPORT_GNU_LINKONCE): Define.
+       (COFF_SECTION_ALIGNMENT_ENTRIES): Add entries for .debug and
+       .gnu.linkonce.wi..
+       * pei-i386.c (COFF_SUPPORT_GNU_LINKONCE): Likewise.
+       (COFF_SECTION_ALIGNMENT_ENTRIES): Likewise.
+
 2004-04-28  Chris Demetriou  <cgd@broadcom.com>
 
        * reloc.c: Remove BFD_RELOC_PCREL_HI16_S and BFD_RELOC_PCREL_LO16.

diff --git a/bfd/bfd.c b/bfd/bfd.c
index c8a60f2..199ed1a 100644 (file)
--- a/bfd/bfd.c
+++ b/bfd/bfd.c
@@ -1,6 +1,6 @@
 /* Generic BFD library interface and support routines.
    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003
+   2000, 2001, 2002, 2003, 2004
    Free Software Foundation, Inc.
    Written by Cygnus Support.
 
@@ -765,12 +765,14 @@ bfd_get_sign_extend_vma (bfd *abfd)
 
   name = bfd_get_target (abfd);
 
-  /* Return a proper value for DJGPP COFF (an x86 COFF variant).
+  /* Return a proper value for DJGPP & PE COFF (x86 COFF variants).
      This function is required for DWARF2 support, but there is
      no place to store this information in the COFF back end.
      Should enough other COFF targets add support for DWARF2,
      a place will have to be found.  Until then, this hack will do.  */
-  if (strncmp (name, "coff-go32", sizeof ("coff-go32") - 1) == 0)
+  if (strncmp (name, "coff-go32", sizeof ("coff-go32") - 1) == 0
+      || strcmp (name, "pe-i386") == 0
+      || strcmp (name, "pei-i386") == 0)
     return 1;
 
   bfd_set_error (bfd_error_wrong_format);

diff --git a/bfd/coffcode.h b/bfd/coffcode.h
index 15d9709..80b5526 100644 (file)
--- a/bfd/coffcode.h
+++ b/bfd/coffcode.h
@@ -1,6 +1,6 @@
 /* Support for the generic parts of most COFF variants, for BFD.
    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003
+   2000, 2001, 2002, 2003, 2004
    Free Software Foundation, Inc.
    Written by Cygnus Support.
 
@@ -309,6 +309,9 @@ CODE_FRAGMENT
 
 #define STRING_SIZE_SIZE (4)
 
+#define DOT_DEBUG      ".debug"
+#define GNU_LINKONCE_WI ".gnu.linkonce.wi."
+
 static long sec_to_styp_flags
   PARAMS ((const char *, flagword));
 static bfd_boolean styp_to_sec_flags
@@ -428,7 +431,7 @@ sec_to_styp_flags (sec_name, sec_flags)
       styp_flags = STYP_LIT;
 #endif /* _LIT */
     }
-  else if (!strncmp (sec_name, ".debug", 6))
+  else if (!strncmp (sec_name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1))
     {
       /* Handle the XCOFF debug section and DWARF2 debug sections.  */
       if (!sec_name[6])
@@ -441,7 +444,7 @@ sec_to_styp_flags (sec_name, sec_flags)
       styp_flags = STYP_DEBUG_INFO;
     }
 #ifdef COFF_LONG_SECTION_NAMES
-  else if (!strncmp (sec_name, ".gnu.linkonce.wi.", 17))
+  else if (!strncmp (sec_name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1))
     {
       styp_flags = STYP_DEBUG_INFO;
     }
@@ -518,7 +521,7 @@ sec_to_styp_flags (sec_name, sec_flags)
 
 static long
 sec_to_styp_flags (sec_name, sec_flags)
-     const char *sec_name ATTRIBUTE_UNUSED;
+     const char *sec_name;
      flagword sec_flags;
 {
   long styp_flags = 0;
@@ -531,6 +534,11 @@ sec_to_styp_flags (sec_name, sec_flags)
      PE files.  The STYP_* flags and the IMAGE_SCN_* flags overlap,
      but there are more IMAGE_SCN_* flags.  */
 
+  /* FIXME: There is no gas syntax to specify the debug section flag.  */
+  if (strncmp (sec_name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1) == 0
+      || strncmp (sec_name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1) == 0)
+    sec_flags = SEC_READONLY | SEC_DEBUGGING;
+
   /* skip LOAD */
   /* READONLY later */
   /* skip RELOC */
@@ -675,12 +683,12 @@ styp_to_sec_flags (abfd, hdr, name, section, flags_ptr)
 #endif
        sec_flags |= SEC_ALLOC;
     }
-  else if (strncmp (name, ".debug", 6) == 0
+  else if (strncmp (name, DOT_DEBUG, sizeof (DOT_DEBUG) - 1) == 0
 #ifdef _COMMENT
           || strcmp (name, _COMMENT) == 0
 #endif
 #ifdef COFF_LONG_SECTION_NAMES
-          || strncmp (name, ".gnu.linkonce.wi.", 17) == 0
+          || strncmp (name, GNU_LINKONCE_WI, sizeof (GNU_LINKONCE_WI) - 1) == 0
 #endif
           || strncmp (name, ".stab", 5) == 0)
     {
@@ -3004,7 +3012,7 @@ coff_compute_section_file_positions (abfd)
        {
          asection *dsec;
 
-         dsec = bfd_make_section_old_way (abfd, ".debug");
+         dsec = bfd_make_section_old_way (abfd, DOT_DEBUG);
          if (dsec == NULL)
            abort ();
          dsec->_raw_size = sz;

diff --git a/bfd/pe-i386.c b/bfd/pe-i386.c
index a912cff..be691fd 100644 (file)
--- a/bfd/pe-i386.c
+++ b/bfd/pe-i386.c
@@ -1,5 +1,5 @@
 /* BFD back-end for Intel 386 PECOFF files.
-   Copyright 1995, 1996, 1999, 2001, 2002 Free Software Foundation, Inc.
+   Copyright 1995, 1996, 1999, 2001, 2002, 2004 Free Software Foundation, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
 
@@ -20,12 +20,13 @@
 #include "bfd.h"
 #include "sysdep.h"
 
-#define TARGET_SYM i386pe_vec
-#define TARGET_NAME "pe-i386"
+#define TARGET_SYM             i386pe_vec
+#define TARGET_NAME            "pe-i386"
 #define COFF_WITH_PE
-#define PCRELOFFSET TRUE
-#define TARGET_UNDERSCORE '_'
+#define PCRELOFFSET            TRUE
+#define TARGET_UNDERSCORE      '_'
 #define COFF_LONG_SECTION_NAMES
+#define COFF_SUPPORT_GNU_LINKONCE
 #define COFF_LONG_FILENAMES
 
 #define COFF_SECTION_ALIGNMENT_ENTRIES \
@@ -38,6 +39,10 @@
 { COFF_SECTION_NAME_PARTIAL_MATCH (".idata"), \
   COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
 { COFF_SECTION_NAME_EXACT_MATCH (".pdata"), \
-  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
+{ COFF_SECTION_NAME_PARTIAL_MATCH (".debug"), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
+{ COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi."), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }
 
 #include "coff-i386.c"

diff --git a/bfd/pei-i386.c b/bfd/pei-i386.c
index 63a63a8..4a59f14 100644 (file)
--- a/bfd/pei-i386.c
+++ b/bfd/pei-i386.c
@@ -1,5 +1,5 @@
 /* BFD back-end for Intel 386 PE IMAGE COFF files.
-   Copyright 1995, 1996, 1999, 2002 Free Software Foundation, Inc.
+   Copyright 1995, 1996, 1999, 2002, 2004 Free Software Foundation, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
 
@@ -20,13 +20,14 @@
 #include "bfd.h"
 #include "sysdep.h"
 
-#define TARGET_SYM i386pei_vec
-#define TARGET_NAME "pei-i386"
+#define TARGET_SYM             i386pei_vec
+#define TARGET_NAME            "pei-i386"
 #define COFF_IMAGE_WITH_PE
 #define COFF_WITH_PE
-#define PCRELOFFSET TRUE
-#define TARGET_UNDERSCORE '_'
+#define PCRELOFFSET            TRUE
+#define TARGET_UNDERSCORE      '_'
 #define COFF_LONG_SECTION_NAMES
+#define COFF_SUPPORT_GNU_LINKONCE
 #define COFF_LONG_FILENAMES
 
 #define COFF_SECTION_ALIGNMENT_ENTRIES \
@@ -39,6 +40,10 @@
 { COFF_SECTION_NAME_PARTIAL_MATCH (".idata"), \
   COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
 { COFF_SECTION_NAME_EXACT_MATCH (".pdata"), \
-  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
+{ COFF_SECTION_NAME_PARTIAL_MATCH (".debug"), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
+{ COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi."), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }
 
 #include "coff-i386.c"

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 59c0336..8743b24 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,7 @@
+2004-04-29  Brian Ford  <ford@vss.fsi.com>
+
+       * dwarf2dbg.c (dwarf2_finish): Add SEC_DEBUGGING to section flags.
+
 2004-04-28  Chris Demetriou  <cgd@broadcom.com>
 
        * config/tc-mips.c (HAVE_32BIT_ADDRESSES, append_insn, macro_build)

diff --git a/gas/dwarf2dbg.c b/gas/dwarf2dbg.c
index 3336453..59da56a 100644 (file)
--- a/gas/dwarf2dbg.c
+++ b/gas/dwarf2dbg.c
@@ -1371,7 +1371,7 @@ dwarf2_finish (void)
 
   /* Create and switch to the line number section.  */
   line_seg = subseg_new (".debug_line", 0);
-  bfd_set_section_flags (stdoutput, line_seg, SEC_READONLY);
+  bfd_set_section_flags (stdoutput, line_seg, SEC_READONLY | SEC_DEBUGGING);
 
   /* For each subsection, chain the debug entries together.  */
   for (s = all_segs; s; s = s->next)
@@ -1400,9 +1400,12 @@ dwarf2_finish (void)
       abbrev_seg = subseg_new (".debug_abbrev", 0);
       aranges_seg = subseg_new (".debug_aranges", 0);
 
-      bfd_set_section_flags (stdoutput, info_seg, SEC_READONLY);
-      bfd_set_section_flags (stdoutput, abbrev_seg, SEC_READONLY);
-      bfd_set_section_flags (stdoutput, aranges_seg, SEC_READONLY);
+      bfd_set_section_flags (stdoutput, info_seg,
+                            SEC_READONLY | SEC_DEBUGGING);
+      bfd_set_section_flags (stdoutput, abbrev_seg,
+                            SEC_READONLY | SEC_DEBUGGING);
+      bfd_set_section_flags (stdoutput, aranges_seg,
+                            SEC_READONLY | SEC_DEBUGGING);
 
       record_alignment (aranges_seg, ffs (2 * sizeof_address) - 1);
 

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 6d535da..d511853 100644 (file)
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,8 @@
+2004-04-29  Brian Ford  <ford@vss.fsi.com>
+
+       * scripttempl/pe.sc: Handle .debug* and .gnu.linkonce.wi.* sections
+       for DWARF 2/3.  Update stab section's syntax.
+
 2004-04-29  Alan Modra  <amodra@bigpond.net.au>
 
        * pe-dll.c: Revert changes accidentally committed 2004-03-08.

diff --git a/ld/scripttempl/pe.sc b/ld/scripttempl/pe.sc
index 91c6c55..60d4ed1 100644 (file)
--- a/ld/scripttempl/pe.sc
+++ b/ld/scripttempl/pe.sc
@@ -159,13 +159,91 @@ SECTIONS
 
   .stab ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
   {
-    [ .stab ]
+    *(.stab)
   }
 
   .stabstr ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
   {
-    [ .stabstr ]
+    *(.stabstr)
   }
 
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section.  Unlike other targets that fake this by putting the
+     section VMA at 0, the PE format will not allow it.  */
+     
+  /* DWARF 1.1 and DWARF 2.  */
+  .debug_aranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_aranges)
+  }
+
+  .debug_pubnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_pubnames)
+  }
+
+  /* DWARF 2.  */
+  .debug_info ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_info) *(.gnu.linkonce.wi.*)
+  }
+
+  .debug_abbrev ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_abbrev)
+  }
+
+  .debug_line ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_line)
+  }
+
+  .debug_frame ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_frame)
+  }
+
+  .debug_str ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_str)
+  }
+
+  .debug_loc ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_loc)
+  }
+
+  .debug_macinfo ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_macinfo)
+  }
+
+  /* SGI/MIPS DWARF 2 extensions.  */
+  .debug_weaknames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_weaknames)
+  }
+
+  .debug_funcnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_funcnames)
+  }
+
+  .debug_typenames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_typenames)
+  }
+
+  .debug_varnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_varnames)
+  }
+
+  /* DWARF 3.  */
+  .debug_ranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
+  {
+    *(.debug_ranges)
+  }
 }
 EOF