# This shell script emits a C file. -*- C -*-
-# It does some substitutions.
-cat >e${EMULATION_NAME}.c <<EOF
-/* This file is is generated by a shell script. DO NOT EDIT! */
-
-/* An emulation for HP PA-RISC ELF linkers.
- Copyright (C) 1991, 93, 94, 95, 97, 99, 2000
- Free Software Foundation, Inc.
- Written by Steve Chamberlain steve@cygnus.com
-
-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. */
-
-#include "bfd.h"
-#include "sysdep.h"
-#include <ctype.h>
-#include "bfdlink.h"
-
-#include "ld.h"
-#include "ldmain.h"
-#include "ldemul.h"
-#include "ldfile.h"
-#include "ldmisc.h"
-#include "ldexp.h"
-#include "ldlang.h"
-#include "ldgram.h"
+# Copyright (C) 1991, 93, 94, 95, 97, 99, 2000
+# Free Software Foundation, Inc.
+#
+# 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.
+#
+
+# This file is sourced from elf32.em, and defines extra hppa-elf
+# specific routines.
+#
+cat >>e${EMULATION_NAME}.c <<EOF
+
#include "ldctor.h"
#include "elf32-hppa.h"
-static void hppaelf_before_parse PARAMS ((void));
static void hppaelf_set_output_arch PARAMS ((void));
static void hppaelf_create_output_section_statements PARAMS ((void));
static void hppaelf_delete_padding_statements
- PARAMS ((lang_statement_list_type *list));
+ PARAMS ((lang_statement_list_type *));
+static asection *hppaelf_add_stub_section
+ PARAMS ((const char *, asection *));
+static void hppaelf_layaout_sections_again PARAMS ((void));
static void hppaelf_finish PARAMS ((void));
-static boolean gld${EMULATION_NAME}_place_orphan
- PARAMS ((lang_input_statement_type *, asection *));
-static lang_output_section_statement_type *output_rel_find PARAMS ((void));
-static char *hppaelf_get_script PARAMS ((int *));
/* Fake input file for stubs. */
static lang_input_statement_type *stub_file;
-/* Perform some emulation specific initialization. For PA ELF we set
- up the local label prefix and the output architecture. */
-
-static void
-hppaelf_before_parse ()
-{
- ldfile_output_architecture = bfd_arch_hppa;
-}
/* Set the output architecture and machine. */
static void
-hppaelf_set_output_arch()
+hppaelf_set_output_arch ()
{
unsigned long machine = 0;
/* Traverse the linker tree to find the spot where the stub goes. */
+static boolean hook_in_stub
+ PARAMS ((struct hook_stub_info *, lang_statement_union_type **));
+
static boolean
hook_in_stub (info, lp)
struct hook_stub_info *info;
return false;
}
+
/* Call-back for elf32_hppa_size_stubs. */
/* Create a new stub section, and arrange for it to be linked
return NULL;
}
+
/* Another call-back for elf32_hppa_size_stubs. */
static void
return;
/* Call into the BFD backend to do the real work. */
- if (elf32_hppa_size_stubs (stub_file->the_bfd,
- &link_info,
- &hppaelf_add_stub_section,
- &hppaelf_layaout_sections_again) == false)
+ if (! elf32_hppa_size_stubs (stub_file->the_bfd,
+ &link_info,
+ &hppaelf_add_stub_section,
+ &hppaelf_layaout_sections_again))
{
einfo ("%X%P: can not size stub section: %E\n");
return;
/* Now build the linker stubs. */
if (stub_file->the_bfd->sections != NULL)
{
- if (elf32_hppa_build_stubs (stub_file->the_bfd, &link_info) == false)
+ if (! elf32_hppa_build_stubs (stub_file->the_bfd, &link_info))
einfo ("%X%P: can not build stubs: %E\n");
}
}
-
-/* Place an orphan section. We use this to put random SHF_ALLOC
- sections in the right segment. */
-
-struct orphan_save
-{
- lang_output_section_statement_type *os;
- asection **section;
- lang_statement_union_type **stmt;
-};
-
-/*ARGSUSED*/
-static boolean
-gld${EMULATION_NAME}_place_orphan (file, s)
- lang_input_statement_type *file;
- asection *s;
-{
- static struct orphan_save hold_text;
- static struct orphan_save hold_rodata;
- static struct orphan_save hold_data;
- static struct orphan_save hold_bss;
- static struct orphan_save hold_rel;
- static struct orphan_save hold_interp;
- struct orphan_save *place;
- lang_statement_list_type *old;
- lang_statement_list_type add;
- etree_type *address;
- const char *secname, *ps;
- const char *outsecname;
- lang_output_section_statement_type *os;
-
- secname = bfd_get_section_name (s->owner, s);
-
- /* Look through the script to see where to place this section. */
- os = lang_output_section_find (secname);
-
- if (os != NULL
- && os->bfd_section != NULL
- && ((s->flags ^ os->bfd_section->flags) & (SEC_LOAD | SEC_ALLOC)) == 0)
- {
- /* We have already placed a section with this name. */
- wild_doit (&os->children, s, os, file);
- return true;
- }
-
- if (hold_text.os == NULL)
- hold_text.os = lang_output_section_find (".text");
-
- /* If this is a final link, then always put .gnu.warning.SYMBOL
- sections into the .text section to get them out of the way. */
- if (! link_info.shared
- && ! link_info.relocateable
- && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
- && hold_text.os != NULL)
- {
- wild_doit (&hold_text.os->children, s, hold_text.os, file);
- return true;
- }
-
- /* Decide which segment the section should go in based on the
- section name and section flags. We put loadable .note sections
- right after the .interp section, so that the PT_NOTE segment is
- stored right after the program headers where the OS can read it
- in the first page. */
-#define HAVE_SECTION(hold, name) \
-(hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
-
- if (s->flags & SEC_EXCLUDE)
- return false;
- else if ((s->flags & SEC_ALLOC) == 0)
- place = NULL;
- else if ((s->flags & SEC_LOAD) != 0
- && strncmp (secname, ".note", 4) == 0
- && HAVE_SECTION (hold_interp, ".interp"))
- place = &hold_interp;
- else if ((s->flags & SEC_HAS_CONTENTS) == 0
- && HAVE_SECTION (hold_bss, ".bss"))
- place = &hold_bss;
- else if ((s->flags & SEC_READONLY) == 0
- && HAVE_SECTION (hold_data, ".data"))
- place = &hold_data;
- else if (strncmp (secname, ".rel", 4) == 0
- && (hold_rel.os != NULL
- || (hold_rel.os = output_rel_find ()) != NULL))
- place = &hold_rel;
- else if ((s->flags & SEC_CODE) == 0
- && (s->flags & SEC_READONLY) != 0
- && HAVE_SECTION (hold_rodata, ".rodata"))
- place = &hold_rodata;
- else if ((s->flags & SEC_READONLY) != 0
- && hold_text.os != NULL)
- place = &hold_text;
- else
- place = NULL;
-
-#undef HAVE_SECTION
-
- /* Choose a unique name for the section. This will be needed if the
- same section name appears in the input file with different
- loadable or allocateable characteristics. */
- outsecname = secname;
- if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
- {
- unsigned int len;
- char *newname;
- unsigned int i;
-
- len = strlen (outsecname);
- newname = xmalloc (len + 5);
- strcpy (newname, outsecname);
- i = 0;
- do
- {
- sprintf (newname + len, "%d", i);
- ++i;
- }
- while (bfd_get_section_by_name (output_bfd, newname) != NULL);
-
- outsecname = newname;
- }
-
- if (place != NULL)
- {
- /* Start building a list of statements for this section. */
- old = stat_ptr;
- stat_ptr = &add;
- lang_list_init (stat_ptr);
-
- /* If the name of the section is representable in C, then create
- symbols to mark the start and the end of the section. */
- for (ps = outsecname; *ps != '\0'; ps++)
- if (! isalnum ((unsigned char) *ps) && *ps != '_')
- break;
- if (*ps == '\0' && config.build_constructors)
- {
- char *symname;
- etree_type *e_align;
-
- symname = (char *) xmalloc (ps - outsecname + sizeof "__start_");
- sprintf (symname, "__start_%s", outsecname);
- e_align = exp_unop (ALIGN_K,
- exp_intop ((bfd_vma) 1 << s->alignment_power));
- lang_add_assignment (exp_assop ('=', symname, e_align));
- }
- }
-
- if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
- address = exp_intop ((bfd_vma) 0);
- else
- address = NULL;
-
- os = lang_enter_output_section_statement (outsecname, address, 0,
- (bfd_vma) 0,
- (etree_type *) NULL,
- (etree_type *) NULL,
- (etree_type *) NULL);
-
- wild_doit (&os->children, s, os, file);
-
- lang_leave_output_section_statement
- ((bfd_vma) 0, "*default*",
- (struct lang_output_section_phdr_list *) NULL, "*default*");
-
- if (place != NULL)
- {
- asection *snew, **pps;
-
- stat_ptr = &add;
-
- if (*ps == '\0' && config.build_constructors)
- {
- char *symname;
-
- symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_");
- sprintf (symname, "__stop_%s", outsecname);
- lang_add_assignment (exp_assop ('=', symname,
- exp_nameop (NAME, ".")));
- }
- stat_ptr = old;
-
- snew = os->bfd_section;
- if (place->os->bfd_section != NULL || place->section != NULL)
- {
- /* Shuffle the section to make the output file look neater. */
- if (place->section == NULL)
- {
-#if 0
- /* Finding the end of the list is a little tricky. We
- make a wild stab at it by comparing section flags. */
- flagword first_flags = place->os->bfd_section->flags;
- for (pps = &place->os->bfd_section->next;
- *pps != NULL && (*pps)->flags == first_flags;
- pps = &(*pps)->next)
- ;
- place->section = pps;
-#else
- /* Put orphans after the first section on the list. */
- place->section = &place->os->bfd_section->next;
-#endif
- }
-
- /* Unlink the section. */
- for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
- ;
- *pps = snew->next;
-
- /* Now tack it on to the "place->os" section list. */
- snew->next = *place->section;
- *place->section = snew;
- }
- place->section = &snew->next; /* Save the end of this list. */
-
- if (place->stmt == NULL)
- {
- /* Put the new statement list right at the head. */
- *add.tail = place->os->header.next;
- place->os->header.next = add.head;
- }
- else
- {
- /* Put it after the last orphan statement we added. */
- *add.tail = *place->stmt;
- *place->stmt = add.head;
- }
- place->stmt = add.tail; /* Save the end of this list. */
- }
-
- return true;
-}
-
-/* A variant of lang_output_section_find. */
-static lang_output_section_statement_type *
-output_rel_find ()
-{
- lang_statement_union_type *u;
- lang_output_section_statement_type *lookup;
-
- for (u = lang_output_section_statement.head;
- u != (lang_statement_union_type *) NULL;
- u = lookup->next)
- {
- lookup = &u->output_section_statement;
- if (strncmp (".rel", lookup->name, 4) == 0
- && lookup->bfd_section != NULL
- && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
- {
- return lookup;
- }
- }
- return (lang_output_section_statement_type *) NULL;
-}
-
-/* The script itself gets inserted here. */
-
-static char *
-hppaelf_get_script(isfile)
- int *isfile;
EOF
-if test -n "$COMPILE_IN"
-then
-# Scripts compiled in.
-
-# sed commands to quote an ld script as a C string.
-sc="-f stringify.sed"
-
-cat >>e${EMULATION_NAME}.c <<EOF
-{
- *isfile = 0;
-
- if (link_info.relocateable == true && config.build_constructors == true)
- return
-EOF
-sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
-echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
-sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
-echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
-sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
-echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
-sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
-
-if test -n "$GENERATE_SHLIB_SCRIPT" ; then
-echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
-sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
-fi
-
-echo ' ; else return' >> e${EMULATION_NAME}.c
-sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
-echo '; }' >> e${EMULATION_NAME}.c
-
-else
-# Scripts read from the filesystem.
-
-cat >>e${EMULATION_NAME}.c <<EOF
-{
- *isfile = 1;
-
- if (link_info.relocateable == true && config.build_constructors == true)
- return "ldscripts/${EMULATION_NAME}.xu";
- else if (link_info.relocateable == true)
- return "ldscripts/${EMULATION_NAME}.xr";
- else if (!config.text_read_only)
- return "ldscripts/${EMULATION_NAME}.xbn";
- else if (!config.magic_demand_paged)
- return "ldscripts/${EMULATION_NAME}.xn";
- else if (link_info.shared)
- return "ldscripts/${EMULATION_NAME}.xs";
- else
- return "ldscripts/${EMULATION_NAME}.x";
-}
-EOF
-
-fi
-
-cat >>e${EMULATION_NAME}.c <<EOF
-
-struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
-{
- hppaelf_before_parse,
- syslib_default,
- hll_default,
- after_parse_default,
- after_open_default,
- after_allocation_default,
- hppaelf_set_output_arch,
- ldemul_default_target,
- before_allocation_default,
- hppaelf_get_script,
- "${EMULATION_NAME}",
- "elf32-hppa",
- hppaelf_finish,
- hppaelf_create_output_section_statements,
- NULL, /* open dynamic */
- gld${EMULATION_NAME}_place_orphan,
- NULL, /* set_symbols */
- NULL, /* parse_args */
- NULL, /* unrecognized_file */
- NULL, /* list_options */
- NULL, /* recognized_file */
- NULL /* find_potential_libraries */
-};
-EOF
+# Put these routines in ld_${EMULATION_NAME}_emulation
+#
+LDEMUL_SET_OUTPUT_ARCH=hppaelf_set_output_arch
+LDEMUL_FINISH=hppaelf_finish
+LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=hppaelf_create_output_section_statements
projects / deliverable / binutils-gdb.git / blobdiff