else
OUTPUT_ARCH=${ARCH}:${MACHINE}
fi
+
+case ${target} in
+ *-*-cygwin*)
+ move_default_addr_high=1
+ ;;
+ *)
+ move_default_addr_high=0;
+ ;;
+esac
+
rm -f e${EMULATION_NAME}.c
(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
fragment <<EOF
-/* Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012
- Free Software Foundation, Inc.
+/* Copyright (C) 2006-2015 Free Software Foundation, Inc.
Written by Kai Tietz, OneVision Software GmbH&CoKg.
This file is part of the GNU Binutils.
#include "ldlex.h"
#include "ldmisc.h"
#include "ldctor.h"
+#include "ldbuildid.h"
#include "coff/internal.h"
/* FIXME: See bfd/peXXigen.c for why we include an architecture specific
#include "coff/x86_64.h"
#include "coff/pe.h"
-/* FIXME: This is a BFD internal header file, and we should not be
+/* FIXME: These are BFD internal header files, and we should not be
using it here. */
#include "../bfd/libcoff.h"
+#include "../bfd/libpei.h"
#undef AOUTSZ
#define AOUTSZ PEPAOUTSZ
#if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
#define PE_DEF_SUBSYSTEM 3
+#undef NT_EXE_IMAGE_BASE
+#define NT_EXE_IMAGE_BASE \
+ ((bfd_vma) (${move_default_addr_high} ? 0x100400000LL \
+ : 0x400000LL))
+#undef NT_DLL_IMAGE_BASE
+#define NT_DLL_IMAGE_BASE \
+ ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
+ : 0x10000000LL))
+#undef NT_DLL_AUTO_IMAGE_BASE
+#define NT_DLL_AUTO_IMAGE_BASE \
+ ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
+ : 0x61300000LL))
+#undef NT_DLL_AUTO_IMAGE_MASK
+#define NT_DLL_AUTO_IMAGE_MASK \
+ ((bfd_vma) (${move_default_addr_high} ? 0x1ffff0000LL \
+ : 0x0ffc0000LL))
#else
#undef NT_EXE_IMAGE_BASE
-#define NT_EXE_IMAGE_BASE 0x00010000
+#define NT_EXE_IMAGE_BASE \
+ ((bfd_vma) (${move_default_addr_high} ? 0x100010000LL \
+ : 0x10000LL))
+#undef NT_DLL_IMAGE_BASE
+#define NT_DLL_IMAGE_BASE \
+ ((bfd_vma) (${move_default_addr_high} ? 0x110000000LL \
+ : 0x10000000LL))
+#undef NT_DLL_AUTO_IMAGE_BASE
+#define NT_DLL_AUTO_IMAGE_BASE \
+ ((bfd_vma) (${move_default_addr_high} ? 0x120000000LL \
+ : 0x61300000LL))
+#undef NT_DLL_AUTO_IMAGE_MASK
+#define NT_DLL_AUTO_IMAGE_MASK \
+ ((bfd_vma) (${move_default_addr_high} ? 0x0ffff0000LL \
+ : 0x0ffc0000LL))
#undef PE_DEF_SECTION_ALIGNMENT
#define PE_DEF_SUBSYSTEM 2
#undef PE_DEF_FILE_ALIGNMENT
static int support_old_code = 0;
static lang_assignment_statement_type *image_base_statement = 0;
static unsigned short pe_dll_characteristics = 0;
+static bfd_boolean insert_timestamp = TRUE;
+static const char *emit_build_id;
#ifdef DLL_SUPPORT
static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */
OPTION_LEADING_UNDERSCORE,
OPTION_ENABLE_LONG_SECTION_NAMES,
OPTION_DISABLE_LONG_SECTION_NAMES,
+ OPTION_HIGH_ENTROPY_VA,
OPTION_DYNAMIC_BASE,
OPTION_FORCE_INTEGRITY,
OPTION_NX_COMPAT,
OPTION_NO_SEH,
OPTION_NO_BIND,
OPTION_WDM_DRIVER,
- OPTION_TERMINAL_SERVER_AWARE
+ OPTION_INSERT_TIMESTAMP,
+ OPTION_NO_INSERT_TIMESTAMP,
+ OPTION_TERMINAL_SERVER_AWARE,
+ OPTION_BUILD_ID
};
static void
#endif
{"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
{"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
+ {"high-entropy-va", no_argument, NULL, OPTION_HIGH_ENTROPY_VA},
{"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
{"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
{"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
{"no-bind", no_argument, NULL, OPTION_NO_BIND},
{"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
{"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
+ {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
+ {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP},
+ {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
{NULL, no_argument, NULL, 0}
};
#define U_SIZE(CSTR) \
(sizeof (CSTR) + (is_underscoring () == 0 ? 0 : 1))
-#define D(field,symbol,def,usc) {&pep.field,sizeof(pep.field), def, symbol,0, usc}
+#define D(field,symbol,def,usc) {&pep.field, sizeof (pep.field), def, symbol, 0, usc}
static definfo init[] =
{
fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
fprintf (file, _(" --support-old-code Support interworking with old code\n"));
fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n"));
+ fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero. (default)\n"));
+ fprintf (file, _(" This makes binaries non-deterministic\n"));
#ifdef DLL_SUPPORT
fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
executable image files\n"));
fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\
in object files\n"));
+ fprintf (file, _(" --high-entropy-va Image is compatible with 64-bit address space\n\
+ layout randomization (ASLR)\n"));
fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\
address space layout randomization (ASLR)\n"));
fprintf (file, _(" --forceinteg Code integrity checks are enforced\n"));
fprintf (file, _(" --no-bind Do not bind this image\n"));
fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
+ fprintf (file, _(" --build-id[=STYLE] Generate build ID\n"));
#endif
}
/* Entry point name for arbitrary subsystem numbers. */
static const char default_entry[] = "mainCRTStartup";
- if (link_info.shared || dll)
+ if (bfd_link_pic (&link_info) || dll)
{
entry = "DllMainCRTStartup";
}
einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
}
+#define DEFAULT_BUILD_ID_STYLE "md5"
static bfd_boolean
gld${EMULATION_NAME}_handle_option (int optc)
case OPTION_LEADING_UNDERSCORE:
pep_leading_underscore = 1;
break;
+ case OPTION_INSERT_TIMESTAMP:
+ insert_timestamp = TRUE;
+ break;
+ case OPTION_NO_INSERT_TIMESTAMP:
+ insert_timestamp = FALSE;
+ break;
#ifdef DLL_SUPPORT
case OPTION_OUT_DEF:
pep_out_def_filename = xstrdup (optarg);
pep_use_coff_long_section_names = 0;
break;
/* Get DLLCharacteristics bits */
+ case OPTION_HIGH_ENTROPY_VA:
+ pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA;
+ break;
case OPTION_DYNAMIC_BASE:
pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
break;
case OPTION_TERMINAL_SERVER_AWARE:
pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
break;
+ case OPTION_BUILD_ID:
+ if (emit_build_id != NULL)
+ {
+ free ((char *) emit_build_id);
+ emit_build_id = NULL;
+ }
+ if (optarg == NULL)
+ optarg = DEFAULT_BUILD_ID_STYLE;
+ if (strcmp (optarg, "none"))
+ emit_build_id = xstrdup (optarg);
+ break;
}
/* Set DLLCharacteristics bits */
set_pep_name ("__dll_characteristics__", pe_dll_characteristics);
-
+
return TRUE;
}
\f
compute_dll_image_base (const char *ofile)
{
bfd_vma hash = (bfd_vma) strhash (ofile);
- return 0x61300000 + ((hash << 16) & 0x0FFC0000);
+ return NT_DLL_AUTO_IMAGE_BASE + ((hash << 16) & NT_DLL_AUTO_IMAGE_MASK);
}
#endif
if (!init[IMAGEBASEOFF].inited)
{
- if (link_info.relocatable)
+ if (bfd_link_relocatable (&link_info))
init[IMAGEBASEOFF].value = 0;
- else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
+ else if (init[DLLOFF].value || bfd_link_dll (&link_info))
{
#ifdef DLL_SUPPORT
init[IMAGEBASEOFF].value = (pep_enable_auto_image_base
}
/* Don't do any symbol assignments if this is a relocatable link. */
- if (link_info.relocatable)
+ if (bfd_link_relocatable (&link_info))
return;
/* Glue the assignments into the abs section. */
lang_assignment_statement_type *rv;
rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
- exp_intop (val)));
+ exp_intop (val), FALSE));
if (init[j].size == sizeof (short))
*(short *) init[j].ptr = (short) val;
else if (init[j].size == sizeof (int))
"targets, did you mean --export-all-symbols?\n"));
set_entry_point ();
-
+
after_parse_default ();
}
if (undef->type == bfd_link_hash_undefined)
{
/* C++ symbols are *long*. */
- char buf[4096];
+#define BUF_SIZE 4096
+ char buf[BUF_SIZE];
if (pep_dll_extra_pe_debug)
printf ("%s:%s\n", __FUNCTION__, undef->root.string);
+ if (strlen (undef->root.string) > (BUF_SIZE - 6))
+ {
+ /* PR linker/18466. */
+ einfo (_("%P: internal error: symbol too long: %s\n"),
+ undef->root.string);
+ return;
+ }
+
sprintf (buf, "__imp_%s", undef->root.string);
sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
}
#endif /* DLL_SUPPORT */
-static void
+static void
debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
{
int *found = (int *) obj;
+
if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
*found = 1;
}
+static bfd_boolean
+pecoff_checksum_contents (bfd *abfd,
+ void (*process) (const void *, size_t, void *),
+ void *arg)
+{
+ file_ptr filepos = (file_ptr) 0;
+
+ while (1)
+ {
+ unsigned char b;
+ int status;
+
+ if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
+ return 0;
+
+ status = bfd_bread (&b, (bfd_size_type) 1, abfd);
+ if (status < 1)
+ {
+ break;
+ }
+
+ (*process) (&b, 1, arg);
+ filepos += 1;
+ }
+
+ return TRUE;
+}
+
+static bfd_boolean
+write_build_id (bfd *abfd)
+{
+ struct pe_tdata *t = pe_data (abfd);
+ asection *asec;
+ struct bfd_link_order *link_order = NULL;
+ unsigned char *contents;
+ bfd_size_type size;
+ bfd_size_type build_id_size;
+ unsigned char *build_id;
+
+ /* Find the section the .buildid output section has been merged info. */
+ for (asec = abfd->sections; asec != NULL; asec = asec->next)
+ {
+ struct bfd_link_order *l = NULL;
+ for (l = asec->map_head.link_order; l != NULL; l = l->next)
+ {
+ if (l->type == bfd_indirect_link_order)
+ {
+ if (l->u.indirect.section == t->build_id.sec)
+ {
+ link_order = l;
+ break;
+ }
+ }
+ }
+
+ if (link_order)
+ break;
+ }
+
+ if (!link_order)
+ {
+ einfo (_("%P: warning: .buildid section discarded,"
+ " --build-id ignored.\n"));
+ return TRUE;
+ }
+
+ if (t->build_id.sec->contents == NULL)
+ t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
+ contents = t->build_id.sec->contents;
+ size = t->build_id.sec->size;
+
+ build_id_size = compute_build_id_size (t->build_id.style);
+ build_id = xmalloc (build_id_size);
+ generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);
+
+ bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;
+
+ /* Construct a debug directory entry which points to an immediately following CodeView record. */
+ struct internal_IMAGE_DEBUG_DIRECTORY idd;
+ idd.Characteristics = 0;
+ idd.TimeDateStamp = 0;
+ idd.MajorVersion = 0;
+ idd.MinorVersion = 0;
+ idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
+ idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
+ idd.AddressOfRawData = asec->vma - ib + link_order->offset
+ + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
+ idd.PointerToRawData = asec->filepos + link_order->offset
+ + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
+
+ struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
+ _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);
+
+ /* Write the debug directory enttry */
+ if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
+ return 0;
+
+ if (bfd_bwrite (contents, size, abfd) != size)
+ return 0;
+
+ /* Construct the CodeView record. */
+ CODEVIEW_INFO cvinfo;
+ cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
+ cvinfo.Age = 1;
+
+ /* Zero pad or truncate the generated build_id to fit in the CodeView record. */
+ memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
+ memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
+ ? CV_INFO_SIGNATURE_LENGTH : build_id_size);
+
+ free (build_id);
+
+ /* Write the codeview record. */
+ if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
+ return 0;
+
+ /* Record the location of the debug directory in the data directory. */
+ pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
+ = asec->vma - ib + link_order->offset;
+ pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
+ = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
+
+ return TRUE;
+}
+
+/* Make .buildid section, and set up coff_tdata->build_id. */
+static bfd_boolean
+setup_build_id (bfd *ibfd)
+{
+ asection *s;
+ flagword flags;
+
+ if (!validate_build_id_style (emit_build_id))
+ {
+ einfo ("%P: warning: unrecognized --build-id style ignored.\n");
+ return FALSE;
+ }
+
+ flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
+ s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags);
+ if (s != NULL)
+ {
+ struct pe_tdata *t = pe_data (link_info.output_bfd);
+ t->build_id.after_write_object_contents = &write_build_id;
+ t->build_id.style = emit_build_id;
+ t->build_id.sec = s;
+
+ /* Section is a fixed size:
+ One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
+ pointing at a CV_INFO_PDB70 record containing the build-id, with a
+ null byte for PdbFileName. */
+ s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
+ + sizeof (CV_INFO_PDB70) + 1;
+
+ return TRUE;
+ }
+
+ einfo ("%P: warning: Cannot create .buildid section,"
+ " --build-id ignored.\n");
+ return FALSE;
+}
+
static void
gld_${EMULATION_NAME}_after_open (void)
{
printf ("-%s\n", sym->root.string);
bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
- for (a = link_info.input_bfds; a; a = a->link_next)
+ for (a = link_info.input_bfds; a; a = a->link.next)
printf ("*%s\n",a->filename);
}
#endif
+ if (emit_build_id != NULL)
+ {
+ bfd *abfd;
+
+ /* Find a COFF input. */
+ for (abfd = link_info.input_bfds;
+ abfd != (bfd *) NULL; abfd = abfd->link.next)
+ if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
+ break;
+
+ /* If there are no COFF input files do not try to
+ add a build-id section. */
+ if (abfd == NULL
+ || !setup_build_id (abfd))
+ {
+ free ((char *) emit_build_id);
+ emit_build_id = NULL;
+ }
+ }
+
/* Pass the wacky PE command line options into the output bfd.
FIXME: This should be done via a function, rather than by
including an internal BFD header. */
pe_data (link_info.output_bfd)->pe_opthdr = pep;
pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
pe_data (link_info.output_bfd)->real_flags |= real_flags;
+ pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp;
/* At this point we must decide whether to use long section names
in the output or not. If the user hasn't explicitly specified
find it, so enable it in that case. */
if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none)
{
- /* Iterate over all sections of all input BFDs, checking
- for any that begin 'debug_' and are long names. */
- LANG_FOR_EACH_INPUT_STATEMENT (is)
+ if (bfd_link_relocatable (&link_info))
+ pep_use_coff_long_section_names = 1;
+ else
{
- int found_debug = 0;
- bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
- if (found_debug)
- {
- pep_use_coff_long_section_names = 1;
- break;
- }
+ /* Iterate over all sections of all input BFDs, checking
+ for any that begin 'debug_' and are long names. */
+ LANG_FOR_EACH_INPUT_STATEMENT (is)
+ {
+ int found_debug = 0;
+
+ bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
+ if (found_debug)
+ {
+ pep_use_coff_long_section_names = 1;
+ break;
+ }
+ }
}
}
pep_fixup_stdcalls ();
#ifndef TARGET_IS_i386pep
- if (link_info.shared)
+ if (bfd_link_pic (&link_info))
#else
- if (!link_info.relocatable)
+ if (!bfd_link_relocatable (&link_info))
#endif
pep_dll_build_sections (link_info.output_bfd, &link_info);
/* def_file_print (stdout, pep_def_file); */
if (pep_def_file->is_dll == 1)
- link_info.shared = 1;
+ link_info.type = type_dll;
if (pep_def_file->base_address != (bfd_vma)(-1))
{
= pep_def_file->base_address;
init[IMAGEBASEOFF].inited = 1;
if (image_base_statement)
- image_base_statement->exp = exp_assign ("__image_base__",
- exp_intop (pep.ImageBase));
+ image_base_statement->exp
+ = exp_assign ("__image_base__", exp_intop (pep.ImageBase),
+ FALSE);
}
if (pep_def_file->stack_reserve != -1
finish_default ();
#ifdef DLL_SUPPORT
- if (link_info.shared
- || (!link_info.relocatable && pep_def_file->num_exports != 0))
+ if (bfd_link_pic (&link_info)
+ || (!bfd_link_relocatable (&link_info)
+ && pep_def_file->num_exports != 0))
{
pep_dll_fill_sections (link_info.output_bfd, &link_info);
if (pep_implib_filename)
lang_statement_union_type **pl;
/* Look through the script to see where to place this section. */
- if (!link_info.relocatable
+ if (!bfd_link_relocatable (&link_info)
&& (dollar = strchr (secname, '\$')) != NULL)
{
size_t len = dollar - secname;
address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
os = lang_insert_orphan (s, secname, constraint, after, place, address,
&add_child);
- if (link_info.relocatable)
+ if (bfd_link_relocatable (&link_info))
{
os->section_alignment = s->alignment_power;
os->bfd_section->alignment_power = s->alignment_power;
unsigned int i;
- if (! entry->flags.maybe_archive)
+ if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
return FALSE;
filename = entry->filename;
{
*isfile = 0;
- if (link_info.relocatable && config.build_constructors)
+ if (bfd_link_relocatable (&link_info) && config.build_constructors)
return
EOF
sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
-echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
+echo ' ; else if (bfd_link_relocatable (&link_info)) 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${EMULATION_NAME}.c
gld_${EMULATION_NAME}_list_options,
gld_${EMULATION_NAME}_recognized_file,
gld_${EMULATION_NAME}_find_potential_libraries,
- NULL /* new_vers_pattern. */
+ NULL, /* new_vers_pattern. */
+ NULL /* extra_map_file_text */
};
EOF
projects / deliverable / binutils-gdb.git / blobdiff