19990502 sourceware importbinu_ss_19990502

1 files changed, 430 insertions, 0 deletions

diff --git a/ld/mpw-idtmips.c b/ld/mpw-idtmips.c
new file mode 100644
index 0000000..08ddc70
--- /dev/null
+++ b/ld/mpw-idtmips.c
@@ -0,0 +1,430 @@
+/* This file is is generated by a shell script.  DO NOT EDIT! */
+
+/* Handle embedded relocs for MIPS.
+   Copyright 1994 Free Software Foundation, Inc.
+   Written by Ian Lance Taylor <ian@cygnus.com> based on generic.em.
+
+This file is part of GLD, the Gnu Linker.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#define TARGET_IS_mipsidt
+
+#include "libiberty.h"
+#include "bfd.h"
+#include "sysdep.h"
+#include "bfdlink.h"
+
+#include "ld.h"
+#include "ldmain.h"
+#include "ldemul.h"
+#include "ldfile.h"
+#include "ldmisc.h"
+
+static void gldmipsidt_before_parse PARAMS ((void));
+static void gldmipsidt_after_open PARAMS ((void));
+static void check_sections PARAMS ((bfd *, asection *, PTR));
+static void gldmipsidt_after_allocation PARAMS ((void));
+static char *gldmipsidt_get_script PARAMS ((int *isfile));
+
+static void
+gldmipsidt_before_parse()
+{
+#ifndef TARGET_			/* I.e., if not generic.  */
+  ldfile_output_architecture = bfd_arch_mips;
+#endif /* not TARGET_ */
+}
+
+/* This function is run after all the input files have been opened.
+   We create a .rel.sdata section for each input file with a non zero
+   .sdata section.  The BFD backend will fill in these sections with
+   magic numbers which can be used to relocate the data section at run
+   time.  This will only do the right thing if all the input files
+   have been compiled using -membedded-pic.  */
+
+static void
+gldmipsidt_after_open ()
+{
+  bfd *abfd;
+
+  if (! command_line.embedded_relocs
+      || link_info.relocateable)
+    return;
+
+  for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
+    {
+      asection *datasec;
+
+      datasec = bfd_get_section_by_name (abfd, ".sdata");
+
+      /* Note that we assume that the reloc_count field has already
+         been set up.  We could call bfd_get_reloc_upper_bound, but
+         that returns the size of a memory buffer rather than a reloc
+         count.  We do not want to call bfd_canonicalize_reloc,
+         because although it would always work it would force us to
+         read in the relocs into BFD canonical form, which would waste
+         a significant amount of time and memory.  */
+      if (datasec != NULL && datasec->reloc_count > 0)
+	{
+	  asection *relsec;
+
+	  relsec = bfd_make_section (abfd, ".rel.sdata");
+	  if (relsec == NULL
+	      || ! bfd_set_section_flags (abfd, relsec,
+					  (SEC_ALLOC
+					   | SEC_LOAD
+					   | SEC_HAS_CONTENTS
+					   | SEC_IN_MEMORY))
+	      || ! bfd_set_section_alignment (abfd, relsec, 2)
+	      || ! bfd_set_section_size (abfd, relsec,
+					 datasec->reloc_count * 4))
+	    einfo (_("%F%B: can not create .rel.sdata section: %E\n"));
+	}
+
+      /* Double check that all other data sections are empty, as is
+         required for embedded PIC code.  */
+      bfd_map_over_sections (abfd, check_sections, (PTR) datasec);
+    }
+}
+
+/* Check that of the data sections, only the .sdata section has
+   relocs.  This is called via bfd_map_over_sections.  */
+
+static void
+check_sections (abfd, sec, sdatasec)
+     bfd *abfd;
+     asection *sec;
+     PTR sdatasec;
+{
+  if ((bfd_get_section_flags (abfd, sec) & SEC_CODE) == 0
+      && sec != (asection *) sdatasec
+      && sec->reloc_count != 0)
+    einfo (_("%F%X: section %s has relocs; can not use --embedded-relocs\n"),
+	   abfd, bfd_get_section_name (abfd, sec));
+}
+
+/* This function is called after the section sizes and offsets have
+   been set.  If we are generating embedded relocs, it calls a special
+   BFD backend routine to do the work.  */
+
+static void
+gldmipsidt_after_allocation ()
+{
+  bfd *abfd;
+
+  if (! command_line.embedded_relocs
+      || link_info.relocateable)
+    return;
+
+  for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
+    {
+      asection *datasec, *relsec;
+      char *errmsg;
+
+      datasec = bfd_get_section_by_name (abfd, ".sdata");
+
+      if (datasec == NULL || datasec->reloc_count == 0)
+	continue;
+
+      relsec = bfd_get_section_by_name (abfd, ".rel.sdata");
+      ASSERT (relsec != NULL);
+
+      if (! bfd_mips_ecoff_create_embedded_relocs (abfd, &link_info,
+						   datasec, relsec,
+						   &errmsg))
+	{
+	  if (errmsg == NULL)
+	    einfo (_("%B%X: can not create runtime reloc information: %E\n"),
+		   abfd);
+	  else
+	    einfo (_("%X%B: can not create runtime reloc information: %s\n"),
+		   abfd, errmsg);
+	}
+    }
+}
+
+static char *
+gldmipsidt_get_script(isfile)
+     int *isfile;
+{			     
+  *isfile = 0;
+
+  if (link_info.relocateable == true && config.build_constructors == true)
+    return
+concat(
+"OUTPUT_FORMAT(\"ecoff-bigmips\", \"ecoff-bigmips\",\n\
+	      \"ecoff-littlemips\")\n\
+ SEARCH_DIR(/usr/local/mips-idt-ecoff/lib);\n\
+ENTRY(start)\n\
+SECTIONS\n\
+{\n\
+  .text : {\n\
+    ;\n\
+    *(.init)\n\
+    ;\n\
+    *(.text)\n\
+    *(.rel.sdata)\n\
+    *(.fini)\n\
+    ;\n\
+    ;\n\
+  }\n\
+ ","  .rdata : {\n\
+    *(.rdata)\n\
+  }\n\
+  .data : {\n\
+    *(.data)\n\
+    CONSTRUCTORS\n\
+  }\n\
+  .lit8 : {\n\
+    *(.lit8)\n\
+  }\n\
+  .lit4 : {\n\
+    *(.lit4)\n\
+  }\n\
+ ","  .sdata : {\n\
+    *(.sdata)\n\
+  }\n\
+  .sbss : {\n\
+    *(.sbss)\n\
+    *(.scommon)\n\
+  }\n\
+  .bss : {\n\
+    *(.bss)\n\
+    *(COMMON)\n\
+  }\n\
+}\n\n", NULL)
+  ; else if (link_info.relocateable == true) return
+"OUTPUT_FORMAT(\"ecoff-bigmips\", \"ecoff-bigmips\",\n\
+	      \"ecoff-littlemips\")\n\
+ SEARCH_DIR(/usr/local/mips-idt-ecoff/lib);\n\
+ENTRY(start)\n\
+SECTIONS\n\
+{\n\
+  .text : {\n\
+    ;\n\
+    *(.init)\n\
+    ;\n\
+    *(.text)\n\
+    *(.rel.sdata)\n\
+    *(.fini)\n\
+    ;\n\
+    ;\n\
+  }\n\
+  .rdata : {\n\
+    *(.rdata)\n\
+  }\n\
+  .data : {\n\
+    *(.data)\n\
+  }\n\
+  .lit8 : {\n\
+    *(.lit8)\n\
+  }\n\
+  .lit4 : {\n\
+    *(.lit4)\n\
+  }\n\
+  .sdata : {\n\
+    *(.sdata)\n\
+  }\n\
+  .sbss : {\n\
+    *(.sbss)\n\
+    *(.scommon)\n\
+  }\n\
+  .bss : {\n\
+    *(.bss)\n\
+    *(COMMON)\n\
+  }\n\
+}\n\n"
+  ; else if (!config.text_read_only) return
+concat(
+"OUTPUT_FORMAT(\"ecoff-bigmips\", \"ecoff-bigmips\",\n\
+	      \"ecoff-littlemips\")\n\
+ SEARCH_DIR(/usr/local/mips-idt-ecoff/lib);\n\
+ENTRY(start)\n\
+SECTIONS\n\
+{\n\
+  . = 0xa0012000;\n\
+  .text : {\n\
+     _ftext = . ;\n\
+    *(.init)\n\
+     eprol  =  .;\n\
+    *(.text)\n\
+    PROVIDE (__runtime_reloc_start = .);\n\
+    *(.rel.sdata)\n\
+    PROVIDE (__runtime_reloc_stop = .);\n\
+    *(.fini)\n\
+     etext  =  .;\n\
+     _etext  =  .;\n\
+","  }\n\
+  . = .;\n\
+  .rdata : {\n\
+    *(.rdata)\n\
+  }\n\
+   _fdata = ALIGN(16);\n\
+  .data : {\n\
+    *(.data)\n\
+    CONSTRUCTORS\n\
+  }\n\
+   _gp = ALIGN(16) + 0x8000;\n\
+  .lit8 : {\n\
+    *(.lit8)\n\
+  }\n\
+  .lit4 : {\n\
+    *(.lit4)\n\
+  }\n\
+  .sdata : {\n\
+    *(.sdata)\n\
+  }\n\
+","   edata  =  .;\n\
+   _edata  =  .;\n\
+   _fbss = .;\n\
+  .sbss : {\n\
+    *(.sbss)\n\
+    *(.scommon)\n\
+  }\n\
+  .bss : {\n\
+    *(.bss)\n\
+    *(COMMON)\n\
+  }\n\
+   end = .;\n\
+   _end = .;\n\
+}\n\n"
+, NULL)
+  ; else if (!config.magic_demand_paged) return
+concat (
+"OUTPUT_FORMAT(\"ecoff-bigmips\", \"ecoff-bigmips\",\n\
+	      \"ecoff-littlemips\")\n\
+ SEARCH_DIR(/usr/local/mips-idt-ecoff/lib);\n\
+ENTRY(start)\n\
+SECTIONS\n\
+{\n\
+  . = 0xa0012000;\n\
+  .text : {\n\
+     _ftext = . ;\n\
+    *(.init)\n\
+     eprol  =  .;\n\
+    *(.text)\n\
+    PROVIDE (__runtime_reloc_start = .);\n\
+    *(.rel.sdata)\n\
+    PROVIDE (__runtime_reloc_stop = .);\n\
+    *(.fini)\n\
+     etext  =  .;\n\
+     _etext  =  .;\n\
+ ","  }\n\
+  . = .;\n\
+  .rdata : {\n\
+    *(.rdata)\n\
+  }\n\
+   _fdata = ALIGN(16);\n\
+  .data : {\n\
+    *(.data)\n\
+    CONSTRUCTORS\n\
+  }\n\
+   _gp = ALIGN(16) + 0x8000;\n\
+  .lit8 : {\n\
+    *(.lit8)\n\
+ ","  }\n\
+  .lit4 : {\n\
+    *(.lit4)\n\
+  }\n\
+  .sdata : {\n\
+    *(.sdata)\n\
+  }\n\
+   edata  =  .;\n\
+   _edata  =  .;\n\
+   _fbss = .;\n\
+  .sbss : {\n\
+    *(.sbss)\n\
+    *(.scommon)\n\
+ ","  }\n\
+  .bss : {\n\
+    *(.bss)\n\
+    *(COMMON)\n\
+  }\n\
+   end = .;\n\
+   _end = .;\n\
+}\n\n"
+, NULL)
+  ; else return
+concat (
+"OUTPUT_FORMAT(\"ecoff-bigmips\", \"ecoff-bigmips\",\n\
+	      \"ecoff-littlemips\")\n\
+ SEARCH_DIR(/usr/local/mips-idt-ecoff/lib);\n\
+ENTRY(start)\n\
+SECTIONS\n\
+{\n\
+  . = 0xa0012000;\n\
+  .text : {\n\
+     _ftext = . ;\n\
+    *(.init)\n\
+     eprol  =  .;\n\
+    *(.text)\n\
+    PROVIDE (__runtime_reloc_start = .);\n\
+    *(.rel.sdata)\n\
+    PROVIDE (__runtime_reloc_stop = .);\n\
+    *(.fini)\n\
+     etext  =  .;\n\
+     _etext  =  .;\n\
+ ","  }\n\
+  . = .;\n\
+  .rdata : {\n\
+    *(.rdata)\n\
+  }\n\
+   _fdata = ALIGN(16);\n\
+  .data : {\n\
+    *(.data)\n\
+    CONSTRUCTORS\n\
+  }\n\
+   _gp = ALIGN(16) + 0x8000;\n\
+  .lit8 : {\n\
+    *(.lit8)\n\
+  }\n\
+  .lit4 : {\n\
+    *(.lit4)\n\
+ ","  }\n\
+  .sdata : {\n\
+    *(.sdata)\n\
+  }\n\
+   edata  =  .;\n\
+   _edata  =  .;\n\
+   _fbss = .;\n\
+  .sbss : {\n\
+    *(.sbss)\n\
+    *(.scommon)\n\
+  }\n\
+  .bss : {\n\
+    *(.bss)\n\
+    *(COMMON)\n\
+  }\n\
+   end = .;\n\
+   _end = .;\n\
+}\n\n"
+, NULL)
+; }
+
+struct ld_emulation_xfer_struct ld_mipsidt_emulation = 
+{
+  gldmipsidt_before_parse,
+  syslib_default,
+  hll_default,
+  after_parse_default,
+  gldmipsidt_after_open,
+  gldmipsidt_after_allocation,
+  set_output_arch_default,
+  ldemul_default_target,
+  before_allocation_default,
+  gldmipsidt_get_script,
+  "mipsidt",
+  "ecoff-bigmips"
+};