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julius |
# This shell script emits a C file. -*- C -*-
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# It does some substitutions.
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if [ -z "$MACHINE" ]; then
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OUTPUT_ARCH=${ARCH}
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else
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OUTPUT_ARCH=${ARCH}:${MACHINE}
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fi
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fragment <
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/* This file is part of GLD, the Gnu Linker.
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Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
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2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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This file is part of the GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* For WINDOWS_NT */
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32 |
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/* The original file generated returned different default scripts depending
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on whether certain switches were set, but these switches pertain to the
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Linux system and that particular version of coff. In the NT case, we
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only determine if the subsystem is console or windows in order to select
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the correct entry point by default. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfdlink.h"
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41 |
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#include "getopt.h"
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#include "libiberty.h"
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43 |
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#include "ld.h"
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#include "ldmain.h"
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45 |
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#include "ldexp.h"
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#include "ldlang.h"
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47 |
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#include "ldfile.h"
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48 |
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#include "ldemul.h"
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#include
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#include "ldlex.h"
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51 |
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#include "ldmisc.h"
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52 |
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#include "ldctor.h"
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53 |
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#include "coff/internal.h"
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54 |
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#include "../bfd/libcoff.h"
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55 |
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#define TARGET_IS_${EMULATION_NAME}
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static struct internal_extra_pe_aouthdr pe;
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59 |
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static int dll;
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61 |
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extern const char *output_filename;
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static void
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gld_${EMULATION_NAME}_before_parse (void)
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{
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66 |
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ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
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output_filename = "a.exe";
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68 |
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}
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69 |
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70 |
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/* PE format extra command line options. */
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71 |
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72 |
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/* Used for setting flags in the PE header. */
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#define OPTION_BASE_FILE (300 + 1)
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#define OPTION_DLL (OPTION_BASE_FILE + 1)
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#define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
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#define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
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#define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
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#define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
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#define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
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#define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
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#define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
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#define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
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#define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
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#define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
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#define OPTION_SUBSYSTEM (OPTION_STACK + 1)
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#define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
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static void
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gld${EMULATION_NAME}_add_options
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(int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
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struct option **longopts, int nrl ATTRIBUTE_UNUSED,
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struct option **really_longopts ATTRIBUTE_UNUSED)
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{
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static const struct option xtra_long[] = {
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/* PE options */
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{"base-file", required_argument, NULL, OPTION_BASE_FILE},
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{"dll", no_argument, NULL, OPTION_DLL},
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{"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
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{"heap", required_argument, NULL, OPTION_HEAP},
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{"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
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{"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
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{"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
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{"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
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{"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
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{"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
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{"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
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{"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
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{"stack", required_argument, NULL, OPTION_STACK},
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{"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
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{NULL, no_argument, NULL, 0}
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};
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*longopts = (struct option *)
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xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
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memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
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}
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117 |
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118 |
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119 |
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/* PE/WIN32; added routines to get the subsystem type, heap and/or stack
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parameters which may be input from the command line */
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121 |
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122 |
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typedef struct {
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void *ptr;
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int size;
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125 |
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int value;
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126 |
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char *symbol;
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127 |
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int inited;
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128 |
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} definfo;
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129 |
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130 |
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#define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
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131 |
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132 |
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static definfo init[] =
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133 |
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{
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134 |
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/* imagebase must be first */
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135 |
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#define IMAGEBASEOFF 0
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136 |
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D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE),
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137 |
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#define DLLOFF 1
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138 |
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{&dll, sizeof(dll), 0, "__dll__", 0},
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139 |
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D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
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D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
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D(MajorOperatingSystemVersion,"__major_os_version__", 4),
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D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
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D(MajorImageVersion,"__major_image_version__", 1),
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D(MinorImageVersion,"__minor_image_version__", 0),
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D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
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D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
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D(Subsystem,"__subsystem__", 3),
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D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
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D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
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D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
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D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
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D(LoaderFlags,"__loader_flags__", 0x0),
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{ NULL, 0, 0, NULL, 0 }
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};
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156 |
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static void
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set_pe_name (char *name, long val)
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{
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160 |
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int i;
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/* Find the name and set it. */
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for (i = 0; init[i].ptr; i++)
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{
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if (strcmp (name, init[i].symbol) == 0)
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{
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166 |
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init[i].value = val;
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init[i].inited = 1;
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return;
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}
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170 |
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}
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171 |
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abort();
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172 |
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}
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173 |
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174 |
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static void
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176 |
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set_pe_subsystem (void)
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177 |
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{
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178 |
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const char *sver;
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179 |
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int len;
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180 |
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int i;
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181 |
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static const struct
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182 |
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{
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183 |
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const char *name;
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184 |
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const int value;
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185 |
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const char *entry;
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186 |
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}
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187 |
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v[] =
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188 |
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{
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189 |
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{ "native", 1, "_NtProcessStartup" },
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190 |
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{ "windows", 2, "_WinMainCRTStartup" },
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191 |
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{ "wwindows", 2, "_wWinMainCRTStartup" },
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192 |
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{ "console", 3, "_mainCRTStartup" },
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193 |
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{ "wconsole", 3, "_wmainCRTStartup" },
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194 |
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{ "posix", 7, "___PosixProcessStartup"},
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195 |
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{ 0, 0, 0 }
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196 |
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};
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197 |
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198 |
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sver = strchr (optarg, ':');
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199 |
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if (sver == NULL)
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200 |
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len = strlen (optarg);
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201 |
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else
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202 |
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{
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203 |
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char *end;
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204 |
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205 |
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len = sver - optarg;
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206 |
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set_pe_name ("__major_subsystem_version__",
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207 |
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strtoul (sver + 1, &end, 0));
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208 |
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if (*end == '.')
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209 |
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set_pe_name ("__minor_subsystem_version__",
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210 |
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strtoul (end + 1, &end, 0));
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211 |
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if (*end != '\0')
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212 |
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einfo ("%P: warning: bad version number in -subsystem option\n");
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213 |
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}
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214 |
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215 |
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for (i = 0; v[i].name; i++)
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216 |
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{
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217 |
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if (strncmp (optarg, v[i].name, len) == 0
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218 |
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&& v[i].name[len] == '\0')
|
219 |
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{
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220 |
|
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set_pe_name ("__subsystem__", v[i].value);
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221 |
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222 |
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/* If the subsystem is windows, we use a different entry
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223 |
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point. */
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224 |
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lang_default_entry (v[i].entry);
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225 |
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226 |
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return;
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227 |
|
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}
|
228 |
|
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}
|
229 |
|
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einfo ("%P%F: invalid subsystem type %s\n", optarg);
|
230 |
|
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}
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231 |
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|
232 |
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233 |
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static void
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234 |
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set_pe_value (char *name)
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235 |
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{
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236 |
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char *end;
|
237 |
|
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set_pe_name (name, strtoul (optarg, &end, 0));
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238 |
|
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if (end == optarg)
|
239 |
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{
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240 |
|
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einfo ("%P%F: invalid hex number for PE parameter '%s'\n", optarg);
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241 |
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}
|
242 |
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243 |
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optarg = end;
|
244 |
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}
|
245 |
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|
246 |
|
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static void
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247 |
|
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set_pe_stack_heap (char *resname, char *comname)
|
248 |
|
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{
|
249 |
|
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set_pe_value (resname);
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250 |
|
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if (*optarg == ',')
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251 |
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{
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252 |
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optarg++;
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253 |
|
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set_pe_value (comname);
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254 |
|
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}
|
255 |
|
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else if (*optarg)
|
256 |
|
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{
|
257 |
|
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einfo ("%P%F: strange hex info for PE parameter '%s'\n", optarg);
|
258 |
|
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}
|
259 |
|
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}
|
260 |
|
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|
261 |
|
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|
262 |
|
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static bfd_boolean
|
263 |
|
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gld${EMULATION_NAME}_handle_option (int optc)
|
264 |
|
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{
|
265 |
|
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switch (optc)
|
266 |
|
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{
|
267 |
|
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default:
|
268 |
|
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return FALSE;
|
269 |
|
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|
270 |
|
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case OPTION_BASE_FILE:
|
271 |
|
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link_info.base_file = fopen (optarg, FOPEN_WB);
|
272 |
|
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if (link_info.base_file == NULL)
|
273 |
|
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{
|
274 |
|
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fprintf (stderr, "%s: Can't open base file %s\n",
|
275 |
|
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program_name, optarg);
|
276 |
|
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xexit (1);
|
277 |
|
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}
|
278 |
|
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break;
|
279 |
|
|
|
280 |
|
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/* PE options */
|
281 |
|
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case OPTION_HEAP:
|
282 |
|
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set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
|
283 |
|
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break;
|
284 |
|
|
case OPTION_STACK:
|
285 |
|
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set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
|
286 |
|
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break;
|
287 |
|
|
case OPTION_SUBSYSTEM:
|
288 |
|
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set_pe_subsystem ();
|
289 |
|
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break;
|
290 |
|
|
case OPTION_MAJOR_OS_VERSION:
|
291 |
|
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set_pe_value ("__major_os_version__");
|
292 |
|
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break;
|
293 |
|
|
case OPTION_MINOR_OS_VERSION:
|
294 |
|
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set_pe_value ("__minor_os_version__");
|
295 |
|
|
break;
|
296 |
|
|
case OPTION_MAJOR_SUBSYSTEM_VERSION:
|
297 |
|
|
set_pe_value ("__major_subsystem_version__");
|
298 |
|
|
break;
|
299 |
|
|
case OPTION_MINOR_SUBSYSTEM_VERSION:
|
300 |
|
|
set_pe_value ("__minor_subsystem_version__");
|
301 |
|
|
break;
|
302 |
|
|
case OPTION_MAJOR_IMAGE_VERSION:
|
303 |
|
|
set_pe_value ("__major_image_version__");
|
304 |
|
|
break;
|
305 |
|
|
case OPTION_MINOR_IMAGE_VERSION:
|
306 |
|
|
set_pe_value ("__minor_image_version__");
|
307 |
|
|
break;
|
308 |
|
|
case OPTION_FILE_ALIGNMENT:
|
309 |
|
|
set_pe_value ("__file_alignment__");
|
310 |
|
|
break;
|
311 |
|
|
case OPTION_SECTION_ALIGNMENT:
|
312 |
|
|
set_pe_value ("__section_alignment__");
|
313 |
|
|
break;
|
314 |
|
|
case OPTION_DLL:
|
315 |
|
|
set_pe_name ("__dll__", 1);
|
316 |
|
|
break;
|
317 |
|
|
case OPTION_IMAGE_BASE:
|
318 |
|
|
set_pe_value ("__image_base__");
|
319 |
|
|
break;
|
320 |
|
|
}
|
321 |
|
|
return TRUE;
|
322 |
|
|
}
|
323 |
|
|
|
324 |
|
|
/* Assign values to the special symbols before the linker script is
|
325 |
|
|
read. */
|
326 |
|
|
|
327 |
|
|
static void
|
328 |
|
|
gld_${EMULATION_NAME}_set_symbols (void)
|
329 |
|
|
{
|
330 |
|
|
/* Run through and invent symbols for all the
|
331 |
|
|
names and insert the defaults. */
|
332 |
|
|
int j;
|
333 |
|
|
|
334 |
|
|
if (!init[IMAGEBASEOFF].inited)
|
335 |
|
|
{
|
336 |
|
|
if (link_info.relocatable)
|
337 |
|
|
init[IMAGEBASEOFF].value = 0;
|
338 |
|
|
else if (init[DLLOFF].value)
|
339 |
|
|
init[IMAGEBASEOFF].value = BEOS_DLL_IMAGE_BASE;
|
340 |
|
|
else
|
341 |
|
|
init[IMAGEBASEOFF].value = BEOS_EXE_IMAGE_BASE;
|
342 |
|
|
}
|
343 |
|
|
|
344 |
|
|
/* Don't do any symbol assignments if this is a relocatable link. */
|
345 |
|
|
if (link_info.relocatable)
|
346 |
|
|
return;
|
347 |
|
|
|
348 |
|
|
/* Glue the assignments into the abs section */
|
349 |
|
|
push_stat_ptr (&abs_output_section->children);
|
350 |
|
|
|
351 |
|
|
for (j = 0; init[j].ptr; j++)
|
352 |
|
|
{
|
353 |
|
|
long val = init[j].value;
|
354 |
|
|
lang_add_assignment (exp_assop ('=', init[j].symbol, exp_intop (val)));
|
355 |
|
|
if (init[j].size == sizeof(short))
|
356 |
|
|
*(short *)init[j].ptr = val;
|
357 |
|
|
else if (init[j].size == sizeof(int))
|
358 |
|
|
*(int *)init[j].ptr = val;
|
359 |
|
|
else if (init[j].size == sizeof(long))
|
360 |
|
|
*(long *)init[j].ptr = val;
|
361 |
|
|
/* This might be a long long or other special type. */
|
362 |
|
|
else if (init[j].size == sizeof(bfd_vma))
|
363 |
|
|
*(bfd_vma *)init[j].ptr = val;
|
364 |
|
|
else abort();
|
365 |
|
|
}
|
366 |
|
|
/* Restore the pointer. */
|
367 |
|
|
pop_stat_ptr ();
|
368 |
|
|
|
369 |
|
|
if (pe.FileAlignment >
|
370 |
|
|
pe.SectionAlignment)
|
371 |
|
|
{
|
372 |
|
|
einfo ("%P: warning, file alignment > section alignment.\n");
|
373 |
|
|
}
|
374 |
|
|
}
|
375 |
|
|
|
376 |
|
|
static void
|
377 |
|
|
gld_${EMULATION_NAME}_after_open (void)
|
378 |
|
|
{
|
379 |
|
|
/* Pass the wacky PE command line options into the output bfd.
|
380 |
|
|
FIXME: This should be done via a function, rather than by
|
381 |
|
|
including an internal BFD header. */
|
382 |
|
|
if (!coff_data(link_info.output_bfd)->pe)
|
383 |
|
|
{
|
384 |
|
|
einfo ("%F%P: PE operations on non PE file.\n");
|
385 |
|
|
}
|
386 |
|
|
|
387 |
|
|
pe_data(link_info.output_bfd)->pe_opthdr = pe;
|
388 |
|
|
pe_data(link_info.output_bfd)->dll = init[DLLOFF].value;
|
389 |
|
|
|
390 |
|
|
}
|
391 |
|
|
|
392 |
|
|
/* Callback functions for qsort in sort_sections. */
|
393 |
|
|
|
394 |
|
|
static int
|
395 |
|
|
sort_by_file_name (const void *a, const void *b)
|
396 |
|
|
{
|
397 |
|
|
const lang_statement_union_type *const *ra = a;
|
398 |
|
|
const lang_statement_union_type *const *rb = b;
|
399 |
|
|
int i, a_sec, b_sec;
|
400 |
|
|
|
401 |
|
|
i = strcmp ((*ra)->input_section.section->owner->my_archive->filename,
|
402 |
|
|
(*rb)->input_section.section->owner->my_archive->filename);
|
403 |
|
|
if (i != 0)
|
404 |
|
|
return i;
|
405 |
|
|
|
406 |
|
|
i = strcmp ((*ra)->input_section.section->owner->filename,
|
407 |
|
|
(*rb)->input_section.section->owner->filename);
|
408 |
|
|
if (i != 0)
|
409 |
|
|
return i;
|
410 |
|
|
/* the tail idata4/5 are the only ones without relocs to an
|
411 |
|
|
idata$6 section unless we are importing by ordinal,
|
412 |
|
|
so sort them to last to terminate the IAT
|
413 |
|
|
and HNT properly. if no reloc this one is import by ordinal
|
414 |
|
|
so we have to sort by section contents */
|
415 |
|
|
|
416 |
|
|
if ( ((*ra)->input_section.section->reloc_count + (*rb)->input_section.section->reloc_count) )
|
417 |
|
|
{
|
418 |
|
|
i = (((*ra)->input_section.section->reloc_count >
|
419 |
|
|
(*rb)->input_section.section->reloc_count) ? -1 : 0);
|
420 |
|
|
if ( i != 0)
|
421 |
|
|
return i;
|
422 |
|
|
|
423 |
|
|
return (((*ra)->input_section.section->reloc_count >
|
424 |
|
|
(*rb)->input_section.section->reloc_count) ? 0 : 1);
|
425 |
|
|
}
|
426 |
|
|
else
|
427 |
|
|
{
|
428 |
|
|
if ( (strcmp( (*ra)->input_section.section->name, ".idata$6") == 0) )
|
429 |
|
|
return 0; /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */
|
430 |
|
|
|
431 |
|
|
if (! bfd_get_section_contents ((*ra)->input_section.section->owner,
|
432 |
|
|
(*ra)->input_section.section, &a_sec, (file_ptr) 0, (bfd_size_type)sizeof(a_sec)))
|
433 |
|
|
einfo ("%F%B: Can't read contents of section .idata: %E\n",
|
434 |
|
|
(*ra)->input_section.section->owner);
|
435 |
|
|
|
436 |
|
|
if (! bfd_get_section_contents ((*rb)->input_section.section->owner,
|
437 |
|
|
(*rb)->input_section.section, &b_sec, (file_ptr) 0, (bfd_size_type)sizeof(b_sec) ))
|
438 |
|
|
einfo ("%F%B: Can't read contents of section .idata: %E\n",
|
439 |
|
|
(*rb)->input_section.section->owner);
|
440 |
|
|
|
441 |
|
|
i = ((a_sec < b_sec) ? -1 : 0);
|
442 |
|
|
if ( i != 0)
|
443 |
|
|
return i;
|
444 |
|
|
return ((a_sec < b_sec) ? 0 : 1);
|
445 |
|
|
}
|
446 |
|
|
return 0;
|
447 |
|
|
}
|
448 |
|
|
|
449 |
|
|
static int
|
450 |
|
|
sort_by_section_name (const void *a, const void *b)
|
451 |
|
|
{
|
452 |
|
|
const lang_statement_union_type *const *ra = a;
|
453 |
|
|
const lang_statement_union_type *const *rb = b;
|
454 |
|
|
int i;
|
455 |
|
|
i = strcmp ((*ra)->input_section.section->name,
|
456 |
|
|
(*rb)->input_section.section->name);
|
457 |
|
|
/* This is a hack to make .stab and .stabstr last, so we don't have
|
458 |
|
|
to fix strip/objcopy for .reloc sections.
|
459 |
|
|
FIXME stripping images with a .rsrc section still needs to be fixed. */
|
460 |
|
|
if (i != 0)
|
461 |
|
|
{
|
462 |
|
|
if ((CONST_STRNEQ ((*ra)->input_section.section->name, ".stab"))
|
463 |
|
|
&& (! CONST_STRNEQ ((*rb)->input_section.section->name, ".stab")))
|
464 |
|
|
return 1;
|
465 |
|
|
}
|
466 |
|
|
return i;
|
467 |
|
|
}
|
468 |
|
|
|
469 |
|
|
/* Subroutine of sort_sections to a contiguous subset of a list of sections.
|
470 |
|
|
NEXT_AFTER is the element after the last one to sort.
|
471 |
|
|
The result is a pointer to the last element's "next" pointer. */
|
472 |
|
|
|
473 |
|
|
static lang_statement_union_type **
|
474 |
|
|
sort_sections_1 (lang_statement_union_type **startptr,
|
475 |
|
|
lang_statement_union_type *next_after,
|
476 |
|
|
int count,
|
477 |
|
|
int (*sort_func) (const void *, const void *))
|
478 |
|
|
{
|
479 |
|
|
lang_statement_union_type **vec;
|
480 |
|
|
lang_statement_union_type *p;
|
481 |
|
|
int i;
|
482 |
|
|
lang_statement_union_type **ret;
|
483 |
|
|
|
484 |
|
|
if (count == 0)
|
485 |
|
|
return startptr;
|
486 |
|
|
|
487 |
|
|
vec = ((lang_statement_union_type **)
|
488 |
|
|
xmalloc (count * sizeof (lang_statement_union_type *)));
|
489 |
|
|
|
490 |
|
|
for (p = *startptr, i = 0; i < count; i++, p = p->header.next)
|
491 |
|
|
vec[i] = p;
|
492 |
|
|
|
493 |
|
|
qsort (vec, count, sizeof (vec[0]), sort_func);
|
494 |
|
|
|
495 |
|
|
/* Fill in the next pointers again. */
|
496 |
|
|
*startptr = vec[0];
|
497 |
|
|
for (i = 0; i < count - 1; i++)
|
498 |
|
|
vec[i]->header.next = vec[i + 1];
|
499 |
|
|
vec[i]->header.next = next_after;
|
500 |
|
|
ret = &vec[i]->header.next;
|
501 |
|
|
free (vec);
|
502 |
|
|
return ret;
|
503 |
|
|
}
|
504 |
|
|
|
505 |
|
|
/* Sort the .idata\$foo input sections of archives into filename order.
|
506 |
|
|
The reason is so dlltool can arrange to have the pe dll import information
|
507 |
|
|
generated correctly - the head of the list goes into dh.o, the tail into
|
508 |
|
|
dt.o, and the guts into ds[nnnn].o. Note that this is only needed for the
|
509 |
|
|
.idata section.
|
510 |
|
|
FIXME: This may no longer be necessary with grouped sections. Instead of
|
511 |
|
|
sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use
|
512 |
|
|
.idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t.
|
513 |
|
|
This would have to be elaborated upon to handle multiple dll's
|
514 |
|
|
[assuming such an eloboration is possible of course].
|
515 |
|
|
|
516 |
|
|
We also sort sections in '\$' wild statements. These are created by the
|
517 |
|
|
place_orphans routine to implement grouped sections. */
|
518 |
|
|
|
519 |
|
|
static void
|
520 |
|
|
sort_sections (lang_statement_union_type *s)
|
521 |
|
|
{
|
522 |
|
|
for (; s ; s = s->header.next)
|
523 |
|
|
switch (s->header.type)
|
524 |
|
|
{
|
525 |
|
|
case lang_output_section_statement_enum:
|
526 |
|
|
sort_sections (s->output_section_statement.children.head);
|
527 |
|
|
break;
|
528 |
|
|
case lang_wild_statement_enum:
|
529 |
|
|
{
|
530 |
|
|
lang_statement_union_type **p = &s->wild_statement.children.head;
|
531 |
|
|
struct wildcard_list *sec;
|
532 |
|
|
|
533 |
|
|
for (sec = s->wild_statement.section_list; sec; sec = sec->next)
|
534 |
|
|
{
|
535 |
|
|
/* Is this the .idata section? */
|
536 |
|
|
if (sec->spec.name != NULL
|
537 |
|
|
&& CONST_STRNEQ (sec->spec.name, ".idata"))
|
538 |
|
|
{
|
539 |
|
|
/* Sort the children. We want to sort any objects in
|
540 |
|
|
the same archive. In order to handle the case of
|
541 |
|
|
including a single archive multiple times, we sort
|
542 |
|
|
all the children by archive name and then by object
|
543 |
|
|
name. After sorting them, we re-thread the pointer
|
544 |
|
|
chain. */
|
545 |
|
|
|
546 |
|
|
while (*p)
|
547 |
|
|
{
|
548 |
|
|
lang_statement_union_type *start = *p;
|
549 |
|
|
if (start->header.type != lang_input_section_enum
|
550 |
|
|
|| !start->input_section.section->owner->my_archive)
|
551 |
|
|
p = &(start->header.next);
|
552 |
|
|
else
|
553 |
|
|
{
|
554 |
|
|
lang_statement_union_type *end;
|
555 |
|
|
int count;
|
556 |
|
|
|
557 |
|
|
for (end = start, count = 0;
|
558 |
|
|
end && (end->header.type
|
559 |
|
|
== lang_input_section_enum);
|
560 |
|
|
end = end->header.next)
|
561 |
|
|
count++;
|
562 |
|
|
|
563 |
|
|
p = sort_sections_1 (p, end, count,
|
564 |
|
|
sort_by_file_name);
|
565 |
|
|
}
|
566 |
|
|
}
|
567 |
|
|
break;
|
568 |
|
|
}
|
569 |
|
|
|
570 |
|
|
/* If this is a collection of grouped sections, sort them.
|
571 |
|
|
The linker script must explicitly mention "*(.foo\$)" or
|
572 |
|
|
"*(.foo\$*)". Don't sort them if \$ is not the last
|
573 |
|
|
character (not sure if this is really useful, but it
|
574 |
|
|
allows explicitly mentioning some \$ sections and letting
|
575 |
|
|
the linker handle the rest). */
|
576 |
|
|
if (sec->spec.name != NULL)
|
577 |
|
|
{
|
578 |
|
|
char *q = strchr (sec->spec.name, '\$');
|
579 |
|
|
|
580 |
|
|
if (q != NULL
|
581 |
|
|
&& (q[1] == '\0'
|
582 |
|
|
|| (q[1] == '*' && q[2] == '\0')))
|
583 |
|
|
{
|
584 |
|
|
lang_statement_union_type *end;
|
585 |
|
|
int count;
|
586 |
|
|
|
587 |
|
|
for (end = *p, count = 0; end; end = end->header.next)
|
588 |
|
|
{
|
589 |
|
|
if (end->header.type != lang_input_section_enum)
|
590 |
|
|
abort ();
|
591 |
|
|
count++;
|
592 |
|
|
}
|
593 |
|
|
(void) sort_sections_1 (p, end, count,
|
594 |
|
|
sort_by_section_name);
|
595 |
|
|
}
|
596 |
|
|
break;
|
597 |
|
|
}
|
598 |
|
|
}
|
599 |
|
|
}
|
600 |
|
|
break;
|
601 |
|
|
default:
|
602 |
|
|
break;
|
603 |
|
|
}
|
604 |
|
|
}
|
605 |
|
|
|
606 |
|
|
static void
|
607 |
|
|
gld_${EMULATION_NAME}_before_allocation (void)
|
608 |
|
|
{
|
609 |
|
|
#ifdef TARGET_IS_ppcpe
|
610 |
|
|
/* Here we rummage through the found bfds to collect toc information */
|
611 |
|
|
{
|
612 |
|
|
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
613 |
|
|
{
|
614 |
|
|
if (!ppc_process_before_allocation(is->the_bfd, &link_info))
|
615 |
|
|
{
|
616 |
|
|
einfo("Errors encountered processing file %s\n", is->filename);
|
617 |
|
|
}
|
618 |
|
|
}
|
619 |
|
|
}
|
620 |
|
|
|
621 |
|
|
/* We have seen it all. Allocate it, and carry on */
|
622 |
|
|
ppc_allocate_toc_section (&link_info);
|
623 |
|
|
#else
|
624 |
|
|
#ifdef TARGET_IS_armpe
|
625 |
|
|
/* FIXME: we should be able to set the size of the interworking stub
|
626 |
|
|
section.
|
627 |
|
|
|
628 |
|
|
Here we rummage through the found bfds to collect glue
|
629 |
|
|
information. FIXME: should this be based on a command line
|
630 |
|
|
option? krk@cygnus.com */
|
631 |
|
|
{
|
632 |
|
|
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
633 |
|
|
{
|
634 |
|
|
if (!arm_process_before_allocation (is->the_bfd, & link_info))
|
635 |
|
|
{
|
636 |
|
|
einfo ("Errors encountered processing file %s", is->filename);
|
637 |
|
|
}
|
638 |
|
|
}
|
639 |
|
|
}
|
640 |
|
|
|
641 |
|
|
/* We have seen it all. Allocate it, and carry on */
|
642 |
|
|
arm_allocate_interworking_sections (& link_info);
|
643 |
|
|
#endif /* TARGET_IS_armpe */
|
644 |
|
|
#endif /* TARGET_IS_ppcpe */
|
645 |
|
|
|
646 |
|
|
sort_sections (stat_ptr->head);
|
647 |
|
|
|
648 |
|
|
before_allocation_default ();
|
649 |
|
|
}
|
650 |
|
|
|
651 |
|
|
/* Place an orphan section. We use this to put sections with a '\$' in them
|
652 |
|
|
into the right place. Any section with a '\$' in them (e.g. .text\$foo)
|
653 |
|
|
gets mapped to the output section with everything from the '\$' on stripped
|
654 |
|
|
(e.g. .text).
|
655 |
|
|
See the Microsoft Portable Executable and Common Object File Format
|
656 |
|
|
Specification 4.1, section 4.2, Grouped Sections.
|
657 |
|
|
|
658 |
|
|
FIXME: This is now handled by the linker script using wildcards,
|
659 |
|
|
but I'm leaving this here in case we want to enable it for sections
|
660 |
|
|
which are not mentioned in the linker script. */
|
661 |
|
|
|
662 |
|
|
static lang_output_section_statement_type *
|
663 |
|
|
gld${EMULATION_NAME}_place_orphan (asection *s,
|
664 |
|
|
const char *secname,
|
665 |
|
|
int constraint)
|
666 |
|
|
{
|
667 |
|
|
char *output_secname, *ps;
|
668 |
|
|
lang_output_section_statement_type *os;
|
669 |
|
|
lang_statement_union_type *l;
|
670 |
|
|
|
671 |
|
|
if ((s->flags & SEC_ALLOC) == 0)
|
672 |
|
|
return NULL;
|
673 |
|
|
|
674 |
|
|
/* Don't process grouped sections unless doing a final link.
|
675 |
|
|
If they're marked as COMDAT sections, we don't want .text\$foo to
|
676 |
|
|
end up in .text and then have .text disappear because it's marked
|
677 |
|
|
link-once-discard. */
|
678 |
|
|
if (link_info.relocatable)
|
679 |
|
|
return NULL;
|
680 |
|
|
|
681 |
|
|
/* Everything from the '\$' on gets deleted so don't allow '\$' as the
|
682 |
|
|
first character. */
|
683 |
|
|
if (*secname == '\$')
|
684 |
|
|
einfo ("%P%F: section %s has '\$' as first character\n", secname);
|
685 |
|
|
if (strchr (secname + 1, '\$') == NULL)
|
686 |
|
|
return NULL;
|
687 |
|
|
|
688 |
|
|
/* Look up the output section. The Microsoft specs say sections names in
|
689 |
|
|
image files never contain a '\$'. Fortunately, lang_..._lookup creates
|
690 |
|
|
the section if it doesn't exist. */
|
691 |
|
|
output_secname = xstrdup (secname);
|
692 |
|
|
ps = strchr (output_secname + 1, '\$');
|
693 |
|
|
*ps = 0;
|
694 |
|
|
os = lang_output_section_statement_lookup (output_secname, constraint, TRUE);
|
695 |
|
|
|
696 |
|
|
/* Find the '\$' wild statement for this section. We currently require the
|
697 |
|
|
linker script to explicitly mention "*(.foo\$)".
|
698 |
|
|
FIXME: ppcpe.sc has .CRT\$foo in the .rdata section. According to the
|
699 |
|
|
Microsoft docs this isn't correct so it's not (currently) handled. */
|
700 |
|
|
|
701 |
|
|
ps[0] = '\$';
|
702 |
|
|
ps[1] = 0;
|
703 |
|
|
for (l = os->children.head; l; l = l->header.next)
|
704 |
|
|
if (l->header.type == lang_wild_statement_enum)
|
705 |
|
|
{
|
706 |
|
|
struct wildcard_list *sec;
|
707 |
|
|
|
708 |
|
|
for (sec = l->wild_statement.section_list; sec; sec = sec->next)
|
709 |
|
|
if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0)
|
710 |
|
|
break;
|
711 |
|
|
if (sec)
|
712 |
|
|
break;
|
713 |
|
|
}
|
714 |
|
|
ps[0] = 0;
|
715 |
|
|
if (l == NULL)
|
716 |
|
|
einfo ("%P%F: *(%s\$) missing from linker script\n", output_secname);
|
717 |
|
|
|
718 |
|
|
/* Link the input section in and we're done for now.
|
719 |
|
|
The sections still have to be sorted, but that has to wait until
|
720 |
|
|
all such sections have been processed by us. The sorting is done by
|
721 |
|
|
sort_sections. */
|
722 |
|
|
lang_add_section (&l->wild_statement.children, s, os);
|
723 |
|
|
|
724 |
|
|
return os;
|
725 |
|
|
}
|
726 |
|
|
|
727 |
|
|
static char *
|
728 |
|
|
gld_${EMULATION_NAME}_get_script (int *isfile)
|
729 |
|
|
EOF
|
730 |
|
|
# Scripts compiled in.
|
731 |
|
|
# sed commands to quote an ld script as a C string.
|
732 |
|
|
sc="-f stringify.sed"
|
733 |
|
|
|
734 |
|
|
fragment <
|
735 |
|
|
{
|
736 |
|
|
*isfile = 0;
|
737 |
|
|
|
738 |
|
|
if (link_info.relocatable && config.build_constructors)
|
739 |
|
|
return
|
740 |
|
|
EOF
|
741 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
|
742 |
|
|
echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
|
743 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
|
744 |
|
|
echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
|
745 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
|
746 |
|
|
echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
|
747 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
|
748 |
|
|
echo ' ; else return' >> e${EMULATION_NAME}.c
|
749 |
|
|
sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
|
750 |
|
|
echo '; }' >> e${EMULATION_NAME}.c
|
751 |
|
|
|
752 |
|
|
fragment <
|
753 |
|
|
|
754 |
|
|
|
755 |
|
|
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
|
756 |
|
|
{
|
757 |
|
|
gld_${EMULATION_NAME}_before_parse,
|
758 |
|
|
syslib_default,
|
759 |
|
|
hll_default,
|
760 |
|
|
after_parse_default,
|
761 |
|
|
gld_${EMULATION_NAME}_after_open,
|
762 |
|
|
after_allocation_default,
|
763 |
|
|
set_output_arch_default,
|
764 |
|
|
ldemul_default_target,
|
765 |
|
|
gld_${EMULATION_NAME}_before_allocation,
|
766 |
|
|
gld_${EMULATION_NAME}_get_script,
|
767 |
|
|
"${EMULATION_NAME}",
|
768 |
|
|
"${OUTPUT_FORMAT}",
|
769 |
|
|
finish_default,
|
770 |
|
|
NULL, /* create output section statements */
|
771 |
|
|
NULL, /* open dynamic archive */
|
772 |
|
|
gld${EMULATION_NAME}_place_orphan,
|
773 |
|
|
gld_${EMULATION_NAME}_set_symbols,
|
774 |
|
|
NULL, /* parse_args */
|
775 |
|
|
gld${EMULATION_NAME}_add_options,
|
776 |
|
|
gld${EMULATION_NAME}_handle_option,
|
777 |
|
|
NULL, /* unrecognized file */
|
778 |
|
|
NULL, /* list options */
|
779 |
|
|
NULL, /* recognized file */
|
780 |
|
|
NULL, /* find_potential_libraries */
|
781 |
|
|
NULL /* new_vers_pattern */
|
782 |
|
|
};
|
783 |
|
|
EOF
|