/* Routines to help build PEI-format DLLs (Win32 etc)
- Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
- 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
+ Copyright (C) 1998-2024 Free Software Foundation, Inc.
Written by DJ Delorie <dj@cygnus.com>
This file is part of the GNU Binutils.
#include "libiberty.h"
#include "filenames.h"
#include "safe-ctype.h"
+#include "ctf-api.h"
#include <time.h>
#include "../bfd/libcoff.h"
#include "deffile.h"
-#ifdef pe_use_x86_64
+#ifdef pe_use_plus
#define PE_IDATA4_SIZE 8
#define PE_IDATA5_SIZE 8
should run in parallel with addresses vector (FirstThunk), i.e. that they
should have same number of elements and terminated with zero. We violate
this, since FirstThunk points directly into machine code. But in practice,
- OS loader implemented the sane way: it goes thru OriginalFirstThunk and
+ OS loader implemented the sane way: it goes through OriginalFirstThunk and
puts addresses to FirstThunk, not something else. It once again should be
noted that dll and symbol name structures are reused across fixup entries
and should be there anyway to support standard import stuff, so sustained
int pe_use_nul_prefixed_import_tables = 0;
int pe_use_coff_long_section_names = -1;
int pe_leading_underscore = -1;
+int pe_dll_enable_reloc_section = 1;
/* Static variables and types. */
static bfd *filler_bfd;
static struct bfd_section *edata_s, *reloc_s;
static unsigned char *edata_d, *reloc_d;
-static size_t edata_sz, reloc_sz;
+static unsigned char *reloc_d = NULL;
+static size_t edata_sz, reloc_sz = 0;
static int runtime_pseudo_relocs_created = 0;
-static int runtime_pseudp_reloc_v2_init = 0;
+static bool runtime_pseudp_reloc_v2_init = false;
typedef struct
{
unsigned int imagebase_reloc;
int pe_arch;
int bfd_arch;
- bfd_boolean underscored;
+ bool underscored;
const autofilter_entry_type* autofilter_symbollist;
}
pe_details_type;
{ STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") },
/* Entry point symbols, and entry hooks. */
{ STRING_COMMA_LEN ("cygwin_crt0") },
-#ifdef pe_use_x86_64
+#ifdef pe_use_plus
{ STRING_COMMA_LEN ("DllMain") },
{ STRING_COMMA_LEN ("DllEntryPoint") },
{ STRING_COMMA_LEN ("DllMainCRTStartup") },
{ STRING_COMMA_LEN ("_impure_ptr") },
{ STRING_COMMA_LEN ("_fmode") },
{ STRING_COMMA_LEN ("environ") },
+ { STRING_COMMA_LEN ("__dso_handle") },
{ NULL, 0 }
};
#define PE_ARCH_sh 2
#define PE_ARCH_mips 3
#define PE_ARCH_arm 4
-#define PE_ARCH_arm_epoc 5
-#define PE_ARCH_arm_wince 6
+#define PE_ARCH_arm_wince 5
+#define PE_ARCH_aarch64 6
/* Don't make it constant as underscore mode gets possibly overriden
by target or -(no-)leading-underscore option. */
static pe_details_type pe_detail_list[] =
{
{
-#ifdef pe_use_x86_64
+#ifdef pe_use_plus
"pei-x86-64",
"pe-x86-64",
3 /* R_IMAGEBASE */,
#endif
PE_ARCH_i386,
bfd_arch_i386,
-#ifdef pe_use_x86_64
- FALSE,
+#ifdef pe_use_plus
+ false,
#else
- TRUE,
+ true,
#endif
autofilter_symbollist_i386
},
+#ifdef pe_use_plus
+ {
+ "pei-x86-64",
+ "pe-bigobj-x86-64",
+ 3 /* R_IMAGEBASE */,
+ PE_ARCH_i386,
+ bfd_arch_i386,
+ false,
+ autofilter_symbollist_i386
+ },
+#else
+ {
+ "pei-i386",
+ "pe-bigobj-i386",
+ 7 /* R_IMAGEBASE */,
+ PE_ARCH_i386,
+ bfd_arch_i386,
+ true,
+ autofilter_symbollist_i386
+ },
+#endif
{
"pei-shl",
"pe-shl",
16 /* R_SH_IMAGEBASE */,
PE_ARCH_sh,
bfd_arch_sh,
- TRUE,
+ true,
autofilter_symbollist_generic
},
{
34 /* MIPS_R_RVA */,
PE_ARCH_mips,
bfd_arch_mips,
- FALSE,
+ false,
autofilter_symbollist_generic
},
{
11 /* ARM_RVA32 */,
PE_ARCH_arm,
bfd_arch_arm,
- TRUE,
- autofilter_symbollist_generic
- },
- {
- "epoc-pei-arm-little",
- "epoc-pe-arm-little",
- 11 /* ARM_RVA32 */,
- PE_ARCH_arm_epoc,
- bfd_arch_arm,
- FALSE,
+ true,
autofilter_symbollist_generic
},
{
2, /* ARM_RVA32 on Windows CE, see bfd/coff-arm.c. */
PE_ARCH_arm_wince,
bfd_arch_arm,
- FALSE,
+ false,
autofilter_symbollist_generic
},
- { NULL, NULL, 0, 0, 0, FALSE, NULL }
+ {
+ "pei-aarch64-little",
+ "pe-aarch64-little",
+ 2, /* ARM64_RVA32 */
+ PE_ARCH_aarch64,
+ bfd_arch_aarch64,
+ false,
+ autofilter_symbollist_generic
+ },
+ { NULL, NULL, 0, 0, 0, false, NULL }
};
static const pe_details_type *pe_details;
{ STRING_COMMA_LEN ("libsupc++") },
{ STRING_COMMA_LEN ("libobjc") },
{ STRING_COMMA_LEN ("libgcj") },
+ { STRING_COMMA_LEN ("libmsvcrt") },
+ { STRING_COMMA_LEN ("libmsvcrt-os") },
+ { STRING_COMMA_LEN ("libucrt") },
+ { STRING_COMMA_LEN ("libucrtbase") },
{ NULL, 0 }
};
bfd_get_target_info (target, NULL, NULL, &u, NULL);
if (u == -1)
abort ();
- pe_detail_list[i].underscored = (u != 0 ? TRUE : FALSE);
+ pe_detail_list[i].underscored = u != 0;
pe_details = pe_detail_list + i;
pe_leading_underscore = (u != 0 ? 1 : 0);
return;
}
- einfo (_("%XUnsupported PEI architecture: %s\n"), target);
+ einfo (_("%X%P: unsupported PEI architecture: %s\n"), target);
exit (1);
}
bfd_vma vma;
char type;
short extra;
+ int idx;
}
reloc_data_type;
static int
reloc_sort (const void *va, const void *vb)
{
- bfd_vma a = ((const reloc_data_type *) va)->vma;
- bfd_vma b = ((const reloc_data_type *) vb)->vma;
+ const reloc_data_type *a = (const reloc_data_type *) va;
+ const reloc_data_type *b = (const reloc_data_type *) vb;
- return (a > b) ? 1 : ((a < b) ? -1 : 0);
+ if (a->vma > b->vma)
+ return 1;
+ if (a->vma < b->vma)
+ return -1;
+ if (a->idx > b->idx)
+ return 1;
+ if (a->idx < b->idx)
+ return -1;
+ return 0;
}
static int
static int count_exported;
static int count_exported_byname;
static int count_with_ordinals;
-static const char *dll_name;
+static const char *dll_filename;
static int min_ordinal, max_ordinal;
static int *exported_symbols;
free (local_copy);
}
-static bfd_boolean
+static bool
is_import (const char* n)
{
- return (CONST_STRNEQ (n, "__imp_"));
+ return (startswith (n, "__imp_"));
}
/* abfd is a bfd containing n (or NULL)
const char * libname = NULL;
if (abfd && abfd->my_archive)
- libname = lbasename (abfd->my_archive->filename);
+ libname = lbasename (bfd_get_filename (abfd->my_archive));
key.name = key.its_name = (char *) n;
/* Return false if n is in the d->exports table. */
- if (bsearch (&key, d->exports, d->num_exports,
- sizeof (pe_def_file->exports[0]), pe_export_sort))
+ if (d->num_exports != 0
+ && bsearch (&key, d->exports, d->num_exports,
+ sizeof (pe_def_file->exports[0]), pe_export_sort))
return 0;
if (pe_dll_do_default_excludes)
/* Next, exclude symbols from certain startup objects. */
- if (abfd && (p = lbasename (abfd->filename)))
+ if (abfd && (p = lbasename (bfd_get_filename (abfd))))
{
afptr = autofilter_objlist;
while (afptr->name)
}
else if (ex->type == EXCLUDEFORIMPLIB)
{
- if (filename_cmp (abfd->filename, ex->string) == 0)
+ if (filename_cmp (bfd_get_filename (abfd), ex->string) == 0)
return 0;
}
else if (strcmp (n, ex->string) == 0)
process_def_file_and_drectve (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
{
int i, j;
+ unsigned int ui;
struct bfd_link_hash_entry *blhe;
bfd *b;
struct bfd_section *s;
def_file_export *e = 0;
- bfd_boolean resort_needed;
+ bool resort_needed;
if (!pe_def_file)
pe_def_file = def_file_empty ();
/* First, run around to all the objects looking for the .drectve
sections, and push those into the def file too. */
- for (b = info->input_bfds; b; b = b->link_next)
+ for (b = info->input_bfds; b; b = b->link.next)
{
s = bfd_get_section_by_name (b, ".drectve");
if (s)
{
struct coff_link_hash_entry *sym_hash;
sym_hash = coff_link_hash_lookup (coff_hash_table (info),
- ac->symbol_name, FALSE, FALSE, FALSE);
+ ac->symbol_name, false, false, false);
if (sym_hash && sym_hash->root.type == bfd_link_hash_common
- && sym_hash->root.u.c.p->alignment_power < (unsigned) ac->alignment)
+ && sym_hash->root.u.c.p->alignment_power < (unsigned) ac->alignment)
{
sym_hash->root.u.c.p->alignment_power = (unsigned) ac->alignment;
}
}
}
+ if (pe_def_file->exclude_symbols)
+ {
+ for (ui = 0; ui < pe_def_file->num_exclude_symbols; ui++)
+ {
+ pe_dll_add_excludes (pe_def_file->exclude_symbols[ui].symbol_name,
+ EXCLUDESYMS);
+ }
+ }
+
/* If we are building an executable and there is nothing
to export, we do not build an export table at all. */
- if (info->executable && pe_def_file->num_exports == 0
+ if (bfd_link_executable (info) && pe_def_file->num_exports == 0
&& (!pe_dll_export_everything || pe_dll_exclude_all_symbols))
return;
if ((pe_dll_export_everything || pe_def_file->num_exports == 0)
&& !pe_dll_exclude_all_symbols)
{
- for (b = info->input_bfds; b; b = b->link_next)
+ for (b = info->input_bfds; b; b = b->link.next)
{
asymbol **symbols;
int nsyms;
if (!bfd_generic_link_read_symbols (b))
{
- einfo (_("%B%F: could not read symbols: %E\n"), b);
+ einfo (_("%F%P: %pB: could not read symbols: %E\n"), b);
return;
}
/* We should export symbols which are either global or not
anything at all. (.bss data is the latter)
We should not export undefined symbols. */
- bfd_boolean would_export = symbols[j]->section != &bfd_und_section
- && ((symbols[j]->flags & BSF_GLOBAL)
- || (symbols[j]->flags == 0));
+ bool would_export
+ = (symbols[j]->section != bfd_und_section_ptr
+ && ((symbols[j]->flags & BSF_GLOBAL)
+ || (symbols[j]->flags == 0)));
if (link_info.version_info && would_export)
- would_export
- = !bfd_hide_sym_by_version (link_info.version_info,
- symbols[j]->name);
+ would_export
+ = !bfd_hide_sym_by_version (link_info.version_info,
+ symbols[j]->name);
if (would_export)
{
const char *sn = symbols[j]->name;
{
char *name;
if (is_import (sn))
- continue;
+ continue;
name = xmalloc (strlen ("__imp_") + strlen (sn) + 1);
sprintf (name, "%s%s", "__imp_", sn);
blhe = bfd_link_hash_lookup (info->hash, name,
- FALSE, FALSE, FALSE);
+ false, false, false);
free (name);
if (blhe && blhe->type == bfd_link_hash_defined)
if (auto_export (b, pe_def_file, sn))
{
- int is_dup = 0;
+ bool is_dup = false;
def_file_export *p;
p = def_file_add_export (pe_def_file, sn, 0, -1,
NULL, &is_dup);
/* Fill data flag properly, from dlltool.c. */
if (!is_dup)
- p->flag_data = !(symbols[j]->flags & BSF_FUNCTION);
+ p->flag_data = !(symbols[j]->flags & BSF_FUNCTION);
}
}
}
if (NE == 0)
return;
- resort_needed = FALSE;
+ resort_needed = false;
/* Canonicalize the export list. */
if (pe_dll_kill_ats)
{
for (i = 0; i < NE; i++)
{
- if (strchr (pe_def_file->exports[i].name, '@'))
+ /* Check for fastcall/stdcall-decoration, but ignore
+ C++ mangled names. */
+ if (pe_def_file->exports[i].name[0] != '?'
+ && strchr (pe_def_file->exports[i].name, '@'))
{
/* This will preserve internal_name, which may have been
pointing to the same memory as name, or might not
have. */
int lead_at = (*pe_def_file->exports[i].name == '@');
char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at);
- char *tmp_at = strchr (tmp, '@');
+ char *tmp_at = strrchr (tmp, '@');
if (tmp_at)
- *tmp_at = 0;
+ *tmp_at = 0;
else
- einfo (_("%XCannot export %s: invalid export name\n"),
+ einfo (_("%X%P: cannot export %s: invalid export name\n"),
pe_def_file->exports[i].name);
pe_def_file->exports[i].name = tmp;
- resort_needed = TRUE;
+ resort_needed = true;
}
}
}
by removing leading @. */
if (resort_needed)
qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]),
- pe_export_sort);
+ pe_export_sort);
if (pe_dll_stdcall_aliases)
{
if (strchr (pe_def_file->exports[i].name, '@'))
{
- int is_dup = 1;
+ bool is_dup = true;
int lead_at = (*pe_def_file->exports[i].name == '@');
char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at);
pe_def_file->exports[i].internal_name,
-1, NULL, &is_dup);
if (is_dup)
- free (tmp);
+ free (tmp);
}
}
}
{
if (pe_dll_warn_dup_exports)
/* xgettext:c-format */
- einfo (_("%XError, duplicate EXPORT with ordinals: %s (%d vs %d)\n"),
+ einfo (_("%X%P: error, duplicate EXPORT with ordinals: %s (%d vs %d)\n"),
e[j - 1].name, e[j - 1].ordinal, e[i].ordinal);
}
else
{
if (pe_dll_warn_dup_exports)
/* xgettext:c-format */
- einfo (_("Warning, duplicate EXPORT: %s\n"),
+ einfo (_("%P: warning, duplicate EXPORT: %s\n"),
e[j - 1].name);
}
e[j - 1].flag_constant |= e[i].flag_constant;
e[j - 1].flag_noname |= e[i].flag_noname;
e[j - 1].flag_data |= e[i].flag_data;
- if (e[i].name)
- free (e[i].name);
- if (e[i].internal_name)
- free (e[i].internal_name);
- if (e[i].its_name)
- free (e[i].its_name);
+ free (e[i].name);
+ free (e[i].internal_name);
+ free (e[i].its_name);
}
else
{
for (i = 0; i < NE; i++)
{
+ char *int_name = pe_def_file->exports[i].internal_name;
char *name;
- name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2);
- if (pe_details->underscored
- && (*pe_def_file->exports[i].internal_name != '@'))
+
+ /* PR 19803: Make sure that any exported symbol does not get garbage collected. */
+ lang_add_gc_name (int_name);
+
+ name = xmalloc (strlen (int_name) + 2);
+ if (pe_details->underscored && int_name[0] != '@')
{
*name = '_';
- strcpy (name + 1, pe_def_file->exports[i].internal_name);
+ strcpy (name + 1, int_name);
+
+ /* PR 19803: The alias must be preserved as well. */
+ lang_add_gc_name (xstrdup (name));
}
else
- strcpy (name, pe_def_file->exports[i].internal_name);
+ strcpy (name, int_name);
blhe = bfd_link_hash_lookup (info->hash,
name,
- FALSE, FALSE, TRUE);
+ false, false, true);
if (blhe
&& (blhe->type == bfd_link_hash_defined
}
}
/* Check for forward exports. These are indicated in DEF files by an
- export directive of the form NAME1 = MODULE-NAME.EXTERNAL-NAME
+ export directive of the form NAME1 = MODULE-NAME.EXTERNAL-NAME
but we must take care not to be fooled when the user wants to export
a symbol that actually really has a dot in it, so we only check
for them here, after real defined symbols have already been matched. */
- else if (strchr (pe_def_file->exports[i].internal_name, '.'))
+ else if (strchr (int_name, '.'))
{
count_exported++;
if (!pe_def_file->exports[i].flag_noname)
else if (blhe && blhe->type == bfd_link_hash_undefined)
{
/* xgettext:c-format */
- einfo (_("%XCannot export %s: symbol not defined\n"),
- pe_def_file->exports[i].internal_name);
+ einfo (_("%X%P: cannot export %s: symbol not defined\n"),
+ int_name);
}
else if (blhe)
{
/* xgettext:c-format */
- einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"),
- pe_def_file->exports[i].internal_name,
+ einfo (_("%X%P: cannot export %s: symbol wrong type (%d vs %d)\n"),
+ int_name,
blhe->type, bfd_link_hash_defined);
}
else
{
/* xgettext:c-format */
- einfo (_("%XCannot export %s: symbol not found\n"),
- pe_def_file->exports[i].internal_name);
+ einfo (_("%X%P: cannot export %s: symbol not found\n"),
+ int_name);
}
free (name);
}
/* Build the bfd that will contain .edata and .reloc sections. */
static void
-build_filler_bfd (int include_edata)
+build_filler_bfd (bool include_edata)
{
lang_input_statement_type *filler_file;
+
filler_file = lang_add_input_file ("dll stuff",
lang_input_file_is_fake_enum,
NULL);
bfd_get_arch (link_info.output_bfd),
bfd_get_mach (link_info.output_bfd)))
{
- einfo ("%X%P: can not create BFD: %E\n");
+ einfo (_("%F%P: can not create BFD: %E\n"));
return;
}
{
edata_s = bfd_make_section_old_way (filler_bfd, ".edata");
if (edata_s == NULL
- || !bfd_set_section_flags (filler_bfd, edata_s,
- (SEC_HAS_CONTENTS
- | SEC_ALLOC
- | SEC_LOAD
- | SEC_KEEP
- | SEC_IN_MEMORY)))
+ || !bfd_set_section_flags (edata_s, (SEC_HAS_CONTENTS
+ | SEC_ALLOC
+ | SEC_LOAD
+ | SEC_KEEP
+ | SEC_IN_MEMORY)))
{
- einfo ("%X%P: can not create .edata section: %E\n");
+ einfo (_("%X%P: can not create .edata section: %E\n"));
return;
}
- bfd_set_section_size (filler_bfd, edata_s, edata_sz);
+ bfd_set_section_size (edata_s, edata_sz);
}
reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc");
if (reloc_s == NULL
- || !bfd_set_section_flags (filler_bfd, reloc_s,
- (SEC_HAS_CONTENTS
- | SEC_ALLOC
- | SEC_LOAD
- | SEC_KEEP
- | SEC_IN_MEMORY)))
- {
- einfo ("%X%P: can not create .reloc section: %E\n");
+ || !bfd_set_section_flags (reloc_s, (SEC_HAS_CONTENTS
+ | SEC_ALLOC
+ | SEC_LOAD
+ | SEC_KEEP
+ | SEC_IN_MEMORY)))
+ {
+ einfo (_("%X%P: can not create .reloc section: %E\n"));
return;
}
- bfd_set_section_size (filler_bfd, reloc_s, 0);
+ bfd_set_section_size (reloc_s, 0);
ldlang_add_file (filler_file);
}
/* Gather all the exported symbols and build the .edata section. */
static void
-generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED)
+generate_edata (void)
{
int i, next_ordinal;
int name_table_size = 0;
- const char *dlnp;
/* First, we need to know how many exported symbols there are,
and what the range of ordinals is. */
- if (pe_def_file->name)
- dll_name = pe_def_file->name;
- else
- {
- dll_name = abfd->filename;
-
- for (dlnp = dll_name; *dlnp; dlnp++)
- if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':')
- dll_name = dlnp + 1;
- }
-
if (count_with_ordinals && max_ordinal > count_exported)
{
if (min_ordinal > max_ordinal - count_exported + 1)
/* Now we need to assign ordinals to those that don't have them. */
for (i = 0; i < NE; i++)
{
- if (exported_symbol_sections[i] ||
- pe_def_file->exports[i].flag_forward)
+ if (exported_symbol_sections[i]
+ || pe_def_file->exports[i].flag_forward)
{
if (pe_def_file->exports[i].ordinal != -1)
{
if (pi != -1)
{
/* xgettext:c-format */
- einfo (_("%XError, ordinal used twice: %d (%s vs %s)\n"),
+ einfo (_("%X%P: error: ordinal used twice: %d (%s vs %s)\n"),
pe_def_file->exports[i].ordinal,
pe_def_file->exports[i].name,
pe_def_file->exports[pi].name);
next_ordinal = min_ordinal;
for (i = 0; i < NE; i++)
- if ((exported_symbol_sections[i] ||
- pe_def_file->exports[i].flag_forward) &&
- pe_def_file->exports[i].ordinal == -1)
+ if ((exported_symbol_sections[i]
+ || pe_def_file->exports[i].flag_forward)
+ && pe_def_file->exports[i].ordinal == -1)
{
while (exported_symbols[next_ordinal - min_ordinal] != -1)
next_ordinal++;
pe_def_file->exports[i].ordinal = next_ordinal;
}
+ /* PR 12969: Check for more than 1^16 ordinals. */
+ if (max_ordinal > 65535 || next_ordinal > 65535)
+ /* xgettext:c-format */
+ einfo(_("%X%P: error: export ordinal too large: %d\n"),
+ max_ordinal > next_ordinal ? max_ordinal : next_ordinal);
+
/* OK, now we can allocate some memory. */
edata_sz = (40 /* directory */
+ 4 * export_table_size /* addresses */
+ 4 * count_exported_byname /* name ptrs */
+ 2 * count_exported_byname /* ordinals */
- + name_table_size + strlen (dll_name) + 1);
+ + name_table_size + strlen (dll_filename) + 1);
}
/* Fill the exported symbol offsets. The preliminary work has already
name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2);
if (pe_details->underscored
- && *pe_def_file->exports[i].internal_name != '@')
+ && *pe_def_file->exports[i].internal_name != '@')
{
*name = '_';
strcpy (name + 1, pe_def_file->exports[i].internal_name);
blhe = bfd_link_hash_lookup (info->hash,
name,
- FALSE, FALSE, TRUE);
+ false, false, true);
if (blhe && blhe->type == bfd_link_hash_defined)
exported_symbol_offsets[i] = blhe->u.def.value;
unsigned char *enameptrs;
unsigned char *eordinals;
char *enamestr;
- time_t now;
-
- time (&now);
edata_d = xmalloc (edata_sz);
+ edata_s->output_section->vma - image_base)
memset (edata_d, 0, edata_sz);
- bfd_put_32 (abfd, now, edata_d + 4);
+
+ if (pe_data (abfd)->timestamp == -1)
+ {
+ time_t now = bfd_get_current_time (0);
+ H_PUT_32 (abfd, now, edata_d + 4);
+ }
+ else
+ H_PUT_32 (abfd, pe_data (abfd)->timestamp, edata_d + 4);
+
if (pe_def_file->version_major != -1)
{
bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8);
}
bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12);
- strcpy (enamestr, dll_name);
+ strcpy (enamestr, dll_filename);
enamestr += strlen (enamestr) + 1;
bfd_put_32 (abfd, min_ordinal, edata_d + 16);
bfd_put_32 (abfd, export_table_size, edata_d + 20);
Scan alphabetically - ie the ordering in the exports[] table,
rather than by ordinal - the ordering in the exported_symbol[]
table. See dlltool.c and:
- http://sources.redhat.com/ml/binutils/2003-04/msg00379.html
+ http://sources.redhat.com/ml/binutils/2003-04/msg00379.html
for more information. */
hint = 0;
for (s = 0; s < NE; s++)
{
struct bfd_section *ssec = exported_symbol_sections[s];
- if (pe_def_file->exports[s].ordinal != -1 &&
- (pe_def_file->exports[s].flag_forward || ssec != NULL))
+ if (pe_def_file->exports[s].ordinal != -1
+ && (pe_def_file->exports[s].flag_forward || ssec != NULL))
{
int ord = pe_def_file->exports[s].ordinal;
if (pe_def_file->exports[s].flag_forward)
{
bfd_put_32 (abfd, ERVA (enamestr),
- eaddresses + 4 * (ord - min_ordinal));
+ eaddresses + 4 * (ord - min_ordinal));
strcpy (enamestr, pe_def_file->exports[s].internal_name);
enamestr += strlen (pe_def_file->exports[s].internal_name) + 1;
+ ssec->output_offset);
bfd_put_32 (abfd, srva - image_base,
- eaddresses + 4 * (ord - min_ordinal));
+ eaddresses + 4 * (ord - min_ordinal));
}
if (!pe_def_file->exports[s].flag_noname)
static struct bfd_section *current_sec;
-void
-pe_walk_relocs_of_symbol (struct bfd_link_info *info,
- const char *name,
- int (*cb) (arelent *, asection *))
+static void
+pe_walk_relocs (struct bfd_link_info *info,
+ char *name,
+ const char *symname,
+ struct bfd_hash_table *import_hash,
+ void (*cb) (arelent *, asection *, char *, const char *))
{
bfd *b;
asection *s;
- for (b = info->input_bfds; b; b = b->link_next)
+ for (b = info->input_bfds; b; b = b->link.next)
{
asymbol **symbols;
if (!bfd_generic_link_read_symbols (b))
{
- einfo (_("%B%F: could not read symbols: %E\n"), b);
+ einfo (_("%F%P: %pB: could not read symbols: %E\n"), b);
return;
}
{
arelent **relocs;
int relsize, nrelocs, i;
- int flags = bfd_get_section_flags (b, s);
+ int flags = bfd_section_flags (s);
/* Skip discarded linkonce sections. */
if (flags & SEC_LINK_ONCE
{
struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr;
- if (!strcmp (name, sym->name))
- cb (relocs[i], s);
+ /* Warning: the callback needs to be passed NAME directly. */
+ if (import_hash)
+ {
+ if (bfd_hash_lookup (import_hash, sym->name, false, false))
+ {
+ strcpy (name, sym->name);
+ cb (relocs[i], s, name, symname);
+ }
+ }
+ else
+ {
+ if (strcmp (name, sym->name) == 0)
+ cb (relocs[i], s, name, symname);
+ }
}
free (relocs);
}
}
+void
+pe_find_data_imports (const char *symhead,
+ void (*cb) (arelent *, asection *, char *, const char *))
+{
+ struct bfd_link_hash_entry *undef;
+ const size_t headlen = strlen (symhead);
+ size_t namelen = 0;
+ char *buf, *name;
+ struct bfd_hash_table *import_hash;
+
+ for (undef = link_info.hash->undefs; undef; undef = undef->u.undef.next)
+ if (undef->type == bfd_link_hash_undefined)
+ {
+ size_t len = strlen (undef->root.string);
+ if (namelen < len)
+ namelen = len;
+ }
+ if (namelen == 0)
+ return;
+
+ /* For the pseudo-relocation support version 2, we can collect the symbols
+ that are subject to auto-import and adjust the relocations en masse. */
+ if (link_info.pei386_runtime_pseudo_reloc == 2)
+ {
+ import_hash
+ = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table));
+ if (!bfd_hash_table_init (import_hash,
+ bfd_hash_newfunc,
+ sizeof (struct bfd_hash_entry)))
+ einfo (_("%F%P: bfd_hash_table_init failed: %E\n"));
+ }
+ else
+ import_hash = NULL;
+
+ /* We are being a bit cunning here. The buffer will have space for
+ prefixes at the beginning. The prefix is modified here and in a
+ number of functions called from this function. */
+#define PREFIX_LEN 32
+ buf = xmalloc (PREFIX_LEN + namelen + 1);
+ name = buf + PREFIX_LEN;
+
+ for (undef = link_info.hash->undefs; undef; undef = undef->u.undef.next)
+ if (undef->type == bfd_link_hash_undefined)
+ {
+ struct bfd_link_hash_entry *sym;
+ char *impname;
+
+ if (pe_dll_extra_pe_debug)
+ printf ("%s:%s\n", __func__, undef->root.string);
+
+ strcpy (name, undef->root.string);
+ impname = name - (sizeof "__imp_" - 1);
+ memcpy (impname, "__imp_", sizeof "__imp_" - 1);
+
+ sym = bfd_link_hash_lookup (link_info.hash, impname, 0, 0, 1);
+
+ if (sym && sym->type == bfd_link_hash_defined)
+ {
+ if (import_hash)
+ bfd_hash_lookup (import_hash, undef->root.string, true, false);
+ else
+ {
+ bfd *b = sym->u.def.section->owner;
+ const char *symname = NULL;
+ asymbol **symbols;
+ int nsyms, i;
+
+ if (!bfd_generic_link_read_symbols (b))
+ {
+ einfo (_("%F%P: %pB: could not read symbols: %E\n"), b);
+ return;
+ }
+
+ symbols = bfd_get_outsymbols (b);
+ nsyms = bfd_get_symcount (b);
+
+ for (i = 0; i < nsyms; i++)
+ if (strncmp (symbols[i]->name, symhead, headlen) == 0)
+ {
+ if (pe_dll_extra_pe_debug)
+ printf ("->%s\n", symbols[i]->name);
+
+ symname = symbols[i]->name + headlen;
+ break;
+ }
+
+ /* If the symobl isn't part of an import table, there is no
+ point in building a fixup, this would give rise to link
+ errors for mangled symbols instead of the original one. */
+ if (symname)
+ pe_walk_relocs (&link_info, name, symname, NULL, cb);
+ else
+ continue;
+ }
+
+ /* Let's differentiate it somehow from defined. */
+ undef->type = bfd_link_hash_defweak;
+ undef->u.def.value = sym->u.def.value;
+ undef->u.def.section = sym->u.def.section;
+
+ /* We replace the original name with the __imp_ prefixed one, this
+ 1) may trash memory 2) leads to duplicate symbols. But this is
+ better than having a misleading name that can confuse GDB. */
+ undef->root.string = sym->root.string;
+
+ if (link_info.pei386_auto_import == -1)
+ {
+ static bool warned = false;
+
+ info_msg (_("Info: resolving %s by linking to %s "
+ "(auto-import)\n"), name, impname);
+
+ /* PR linker/4844. */
+ if (!warned)
+ {
+ einfo (_("%P: warning: auto-importing has been activated "
+ "without --enable-auto-import specified on the "
+ "command line; this should work unless it "
+ "involves constant data structures referencing "
+ "symbols from auto-imported DLLs\n"));
+ warned = true;
+ }
+ }
+ }
+ }
+
+ /* If we have the import hash table, walk the relocations only once. */
+ if (import_hash)
+ {
+ pe_walk_relocs (&link_info, name, NULL, import_hash, cb);
+ bfd_hash_table_free (import_hash);
+ free (import_hash);
+ }
+
+ free (buf);
+}
+
/* Gather all the relocations and build the .reloc section. */
static void
generate_reloc (bfd *abfd, struct bfd_link_info *info)
{
-
/* For .reloc stuff. */
reloc_data_type *reloc_data;
int total_relocs = 0;
int i;
bfd_vma sec_page = (bfd_vma) -1;
- bfd_vma page_ptr, page_count;
- int bi;
+ bfd_vma page_ptr;
bfd *b;
struct bfd_section *s;
+ if (reloc_s == NULL || reloc_s->output_section == bfd_abs_section_ptr)
+ return;
+
+ /* Set an upper bound for the total number of relocations we will have to generate. */
total_relocs = 0;
- for (b = info->input_bfds; b; b = b->link_next)
+ for (b = info->input_bfds; b; b = b->link.next)
for (s = b->sections; s; s = s->next)
total_relocs += s->reloc_count;
reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type));
total_relocs = 0;
- bi = 0;
- for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next)
+ for (b = info->input_bfds; b; b = b->link.next)
{
arelent **relocs;
int relsize, nrelocs;
+ asymbol **symbols;
+
+ if (!bfd_generic_link_read_symbols (b))
+ {
+ einfo (_("%F%P: %pB: could not read symbols: %E\n"), b);
+ return;
+ }
+
+ symbols = bfd_get_outsymbols (b);
for (s = b->sections; s; s = s->next)
{
- bfd_vma sec_vma = s->output_section->vma + s->output_offset;
- asymbol **symbols;
+ bfd_vma sec_vma;
- /* If it's not loaded, we don't need to relocate it this way. */
- if (!(s->output_section->flags & SEC_LOAD))
- continue;
+ /* If the section is not going to be output, then ignore it. */
+ if (s->output_section == NULL)
+ {
+ /* FIXME: This should not happen. Convert to the correct
+ form here, but really, this should be investigated. */
+ s->output_section = bfd_abs_section_ptr;
+ continue;
+ }
/* I don't know why there would be a reloc for these, but I've
seen it happen - DJ */
- if (s->output_section == &bfd_abs_section)
+ if (s->output_section == bfd_abs_section_ptr)
+ continue;
+
+ /* If it's not loaded, we don't need to relocate it this way. */
+ if (!(s->output_section->flags & SEC_LOAD))
continue;
+ /* This happens when linking with --just-symbols=<file>
+ so do not generate an error. */
if (s->output_section->vma == 0)
- {
- /* Huh? Shouldn't happen, but punt if it does. */
- einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n",
- s->output_section->name, s->output_section->index,
- s->output_section->flags);
- continue;
- }
+ continue;
- if (!bfd_generic_link_read_symbols (b))
- {
- einfo (_("%B%F: could not read symbols: %E\n"), b);
- return;
- }
+ sec_vma = s->output_section->vma + s->output_offset;
- symbols = bfd_get_outsymbols (b);
relsize = bfd_get_reloc_upper_bound (b, s);
relocs = xmalloc (relsize);
nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols);
&& relocs[i]->howto->type != pe_details->imagebase_reloc)
{
struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr;
+ const struct bfd_link_hash_entry *blhe
+ = bfd_wrapped_link_hash_lookup (abfd, info, sym->name,
+ false, false, false);
/* Don't create relocs for undefined weak symbols. */
if (sym->flags == BSF_WEAK)
{
- struct bfd_link_hash_entry *blhe
- = bfd_wrapped_link_hash_lookup (abfd, info, sym->name,
- FALSE, FALSE, FALSE);
if (blhe && blhe->type == bfd_link_hash_undefweak)
{
/* Check aux sym and see if it is defined or not. */
if (h->symbol_class != C_NT_WEAK || h->numaux != 1)
continue;
h2 = h->auxbfd->tdata.coff_obj_data->sym_hashes
- [h->aux->x_sym.x_tagndx.l];
+ [h->aux->x_sym.x_tagndx.u32];
/* We don't want a base reloc if the aux sym is not
found, undefined, or if it is the constant ABS
zero default value. (We broaden that slightly by
no reason we'd want a reference to any absolute
address to get relocated during rebasing). */
if (!h2 || h2->root.type == bfd_link_hash_undefined
- || h2->root.u.def.section == &bfd_abs_section)
+ || h2->root.u.def.section == bfd_abs_section_ptr)
continue;
}
else if (!blhe || blhe->type != bfd_link_hash_defined)
if (!strcmp (s->name, ".eh_frame"))
continue;
}
+ /* Nor for absolute symbols. */
+ else if (blhe && ldexp_is_final_sym_absolute (blhe)
+ && (!blhe->linker_def
+ || (strcmp (sym->name, "__image_base__")
+ && strcmp (sym->name, U ("__ImageBase")))))
+ continue;
reloc_data[total_relocs].vma = sec_vma + relocs[i]->address;
+ reloc_data[total_relocs].idx = total_relocs;
+
+ /* Since we're only about to determine .reloc's size,
+ subsequent output section VMA calculations will shift up
+ sections at this or higher addresses. Relocations for
+ such sections would hence end up not being correct. */
+ if (reloc_data[total_relocs].vma
+ >= reloc_s->output_section->vma)
+ einfo (_("%P: base relocation for section `%s' above "
+ ".reloc section\n"), s->output_section->name);
#define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift)
switch BITS_AND_SHIFT (relocs[i]->howto->bitsize,
relocs[i]->howto->rightshift)
{
-#ifdef pe_use_x86_64
+#ifdef pe_use_plus
case BITS_AND_SHIFT (64, 0):
- reloc_data[total_relocs].type = 10;
+ reloc_data[total_relocs].type = IMAGE_REL_BASED_DIR64;
total_relocs++;
break;
#endif
case BITS_AND_SHIFT (32, 0):
- reloc_data[total_relocs].type = 3;
+ reloc_data[total_relocs].type = IMAGE_REL_BASED_HIGHLOW;
total_relocs++;
break;
case BITS_AND_SHIFT (16, 0):
- reloc_data[total_relocs].type = 2;
+ reloc_data[total_relocs].type = IMAGE_REL_BASED_LOW;
total_relocs++;
break;
case BITS_AND_SHIFT (16, 16):
- reloc_data[total_relocs].type = 4;
+ reloc_data[total_relocs].type = IMAGE_REL_BASED_HIGHADJ;
/* FIXME: we can't know the symbol's right value
yet, but we probably can safely assume that
CE will relocate us in 64k blocks, so leaving
total_relocs++;
break;
case BITS_AND_SHIFT (26, 2):
- reloc_data[total_relocs].type = 5;
+ reloc_data[total_relocs].type =
+ IMAGE_REL_BASED_ARM_MOV32;
total_relocs++;
break;
case BITS_AND_SHIFT (24, 2):
/* Fall through. */
default:
/* xgettext:c-format */
- einfo (_("%XError: %d-bit reloc in dll\n"),
+ einfo (_("%X%P: error: %d-bit reloc in dll\n"),
relocs[i]->howto->bitsize);
break;
}
}
}
+
free (relocs);
/* Warning: the allocated symbols are remembered in BFD and
reused later, so don't free them! */
}
}
+ /* This can happen for example when LTO has eliminated all code. */
+ if (total_relocs == 0)
+ return;
+
/* At this point, we have total_relocs relocation addresses in
reloc_addresses, which are all suitable for the .reloc section.
We must now create the new sections. */
reloc_sz += 2;
- if (reloc_data[i].type == 4)
+ if (reloc_data[i].type == IMAGE_REL_BASED_HIGHADJ)
reloc_sz += 2;
}
reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */
reloc_d = xmalloc (reloc_sz);
- sec_page = (bfd_vma) -1;
+
+ page_ptr = sec_page = (bfd_vma) -1;
reloc_sz = 0;
- page_ptr = (bfd_vma) -1;
- page_count = 0;
for (i = 0; i < total_relocs; i++)
{
page_ptr = reloc_sz;
reloc_sz += 8;
sec_page = this_page;
- page_count = 0;
}
bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12),
reloc_d + reloc_sz);
reloc_sz += 2;
- if (reloc_data[i].type == 4)
+ if (reloc_data[i].type == IMAGE_REL_BASED_HIGHADJ)
{
bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz);
reloc_sz += 2;
}
-
- page_count++;
}
while (reloc_sz & 3)
if (page_ptr != (bfd_vma) -1)
bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4);
-
- while (reloc_sz < reloc_s->size)
- reloc_d[reloc_sz++] = 0;
}
/* Given the exiting def_file structure, print out a .DEF file that
if (out == NULL)
/* xgettext:c-format */
- einfo (_("%s: Can't open output def file %s\n"),
- program_name, pe_out_def_filename);
+ einfo (_("%P: can't open output def file %s\n"),
+ pe_out_def_filename);
if (pe_def_file)
{
quoteput (pe_def_file->name, out, 1);
if (pe_data (link_info.output_bfd)->pe_opthdr.ImageBase)
- {
- fprintf (out, " BASE=0x");
- fprintf_vma (out, ((bfd_vma) pe_data (link_info.output_bfd)->pe_opthdr.ImageBase));
- }
+ fprintf (out, " BASE=0x%" PRIx64,
+ (uint64_t) pe_data (link_info.output_bfd)->pe_opthdr.ImageBase);
fprintf (out, "\n");
}
if (fclose (out) == EOF)
/* xgettext:c-format */
- einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename);
+ einfo (_("%P: error closing file `%s'\n"), pe_out_def_filename);
}
/* Generate the import library. */
static asymbol **symtab;
static int symptr;
static int tmp_seq;
-static int tmp_seq2;
-static const char *dll_filename;
static char *dll_symname;
-#define UNDSEC (asection *) &bfd_und_section
+#define UNDSEC bfd_und_section_ptr
static asection *
quick_section (bfd *abfd, const char *name, int flags, int align)
asymbol *sym;
sec = bfd_make_section_old_way (abfd, name);
- bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP);
- bfd_set_section_alignment (abfd, sec, align);
+ bfd_set_section_flags (sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP);
+ bfd_set_section_alignment (sec, align);
/* Remember to undo this before trying to link internally! */
sec->output_section = sec;
}
/* .section .idata$2
- .global __head_my_dll
+ .global __head_my_dll
__head_my_dll:
- .rva hname
- .long 0
- .long 0
- .rva __my_dll_iname
- .rva fthunk
-
- .section .idata$5
- .long 0
+ .rva hname
+ .long 0
+ .long 0
+ .rva __my_dll_iname
+ .rva fthunk
+
+ .section .idata$5
+ .long 0
fthunk:
- .section .idata$4
- .long 0
+ .section .idata$4
+ .long 0
hname: */
static bfd *
char *oname;
bfd *abfd;
- oname = xmalloc (20);
- sprintf (oname, "d%06d.o", tmp_seq);
+ if (asprintf (&oname, "%s_d%06d.o", dll_symname, tmp_seq) < 4)
+ /* In theory we should return NULL here at let our caller decide what to
+ do. But currently the return value is not checked, just used, and
+ besides, this condition only happens when the system has run out of
+ memory. So just give up. */
+ exit (EXIT_FAILURE);
tmp_seq++;
abfd = bfd_create (oname, parent);
+ free (oname);
bfd_find_target (pe_details->object_target, abfd);
bfd_make_writable (abfd);
pointer to the list points to the *end* of this section, which is
the start of the list of sections from other objects. */
- bfd_set_section_size (abfd, id2, 20);
+ bfd_set_section_size (id2, 20);
d2 = xmalloc (20);
id2->contents = d2;
memset (d2, 0, 20);
save_relocs (id2);
if (pe_use_nul_prefixed_import_tables)
- bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE);
+ bfd_set_section_size (id5, PE_IDATA5_SIZE);
else
- bfd_set_section_size (abfd, id5, 0);
+ bfd_set_section_size (id5, 0);
d5 = xmalloc (PE_IDATA5_SIZE);
id5->contents = d5;
memset (d5, 0, PE_IDATA5_SIZE);
if (pe_use_nul_prefixed_import_tables)
- bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE);
+ bfd_set_section_size (id4, PE_IDATA4_SIZE);
else
- bfd_set_section_size (abfd, id4, 0);
+ bfd_set_section_size (id4, 0);
d4 = xmalloc (PE_IDATA4_SIZE);
id4->contents = d4;
memset (d4, 0, PE_IDATA4_SIZE);
}
/* .section .idata$4
- .long 0
+ .long 0
[.long 0] for PE+
- .section .idata$5
- .long 0
+ .section .idata$5
+ .long 0
[.long 0] for PE+
- .section idata$7
- .global __my_dll_iname
+ .section idata$7
+ .global __my_dll_iname
__my_dll_iname:
- .asciz "my.dll" */
+ .asciz "my.dll" */
static bfd *
make_tail (bfd *parent)
char *oname;
bfd *abfd;
- oname = xmalloc (20);
- sprintf (oname, "d%06d.o", tmp_seq);
+ if (asprintf (&oname, "%s_d%06d.o", dll_symname, tmp_seq) < 4)
+ /* In theory we should return NULL here at let our caller decide what to
+ do. But currently the return value is not checked, just used, and
+ besides, this condition only happens when the system has run out of
+ memory. So just give up. */
+ exit (EXIT_FAILURE);
tmp_seq++;
abfd = bfd_create (oname, parent);
+ free (oname);
bfd_find_target (pe_details->object_target, abfd);
bfd_make_writable (abfd);
id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2);
quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0);
- bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE);
+ bfd_set_section_size (id4, PE_IDATA4_SIZE);
d4 = xmalloc (PE_IDATA4_SIZE);
id4->contents = d4;
memset (d4, 0, PE_IDATA4_SIZE);
- bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE);
+ bfd_set_section_size (id5, PE_IDATA5_SIZE);
d5 = xmalloc (PE_IDATA5_SIZE);
id5->contents = d5;
memset (d5, 0, PE_IDATA5_SIZE);
len = strlen (dll_filename) + 1;
if (len & 1)
len++;
- bfd_set_section_size (abfd, id7, len);
+ bfd_set_section_size (id7, len);
d7 = xmalloc (len);
id7->contents = d7;
strcpy ((char *) d7, dll_filename);
}
/* .text
- .global _function
- .global ___imp_function
- .global __imp__function
+ .global _function
+ .global ___imp_function
+ .global __imp__function
_function:
- jmp *__imp__function:
+ jmp *__imp__function:
- .section idata$7
- .long __head_my_dll
+ .section idata$7
+ .long __head_my_dll
- .section .idata$5
+ .section .idata$5
___imp_function:
__imp__function:
iat?
- .section .idata$4
+ .section .idata$4
iat?
- .section .idata$6
+ .section .idata$6
ID<ordinal>:
- .short <hint>
- .asciz "function" xlate? (add underscore, kill at) */
+ .short <hint>
+ .asciz "function" xlate? (add underscore, kill at) */
static const unsigned char jmp_ix86_bytes[] =
{
0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90
};
+static const unsigned char jmp_aarch64_bytes[] =
+{
+ 0x10, 0x00, 0x00, 0x90, /* adrp x16, 0 */
+ 0x10, 0x02, 0x00, 0x91, /* add x16, x16, #0x0 */
+ 0x10, 0x02, 0x40, 0xf9, /* ldr x16, [x16] */
+ 0x00, 0x02, 0x1f, 0xd6 /* br x16 */
+};
+
/* _function:
- mov.l ip+8,r0
- mov.l @r0,r0
- jmp @r0
- nop
- .dw __imp_function */
+ mov.l ip+8,r0
+ mov.l @r0,r0
+ jmp @r0
+ nop
+ .dw __imp_function */
static const unsigned char jmp_sh_bytes[] =
{
};
/* _function:
- lui $t0,<high:__imp_function>
- lw $t0,<low:__imp_function>
- jr $t0
- nop */
+ lui $t0,<high:__imp_function>
+ lw $t0,<low:__imp_function>
+ jr $t0
+ nop */
static const unsigned char jmp_mips_bytes[] =
{
static bfd *
-make_one (def_file_export *exp, bfd *parent, bfd_boolean include_jmp_stub)
+make_one (def_file_export *exp, bfd *parent, bool include_jmp_stub)
{
asection *tx, *id7, *id5, *id4, *id6;
unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL;
bfd *abfd;
const unsigned char *jmp_bytes = NULL;
int jmp_byte_count = 0;
+ const char *internal_name = exp->internal_name;
+
+ if (!exp->flag_noname)
+ {
+ /* Check for a decorated symbol name */
+ struct decoration_hash_entry *entry;
+
+ entry = (struct decoration_hash_entry *)
+ bfd_hash_lookup (&(coff_hash_table (&link_info)->decoration_hash),
+ internal_name, false, false);
+ if (entry)
+ {
+ if (entry->decorated_link)
+ {
+ internal_name = entry->decorated_link->root.string;
+
+ if (pe_details->underscored && internal_name[0] == '_')
+ internal_name++;
+ }
+ else
+ {
+ einfo (_("%P: error: NULL decorated name for %s\n"), internal_name);
+ }
+ }
+ }
/* Include the jump stub section only if it is needed. A jump
stub is needed if the symbol being imported <sym> is a function
jmp_byte_count = sizeof (jmp_mips_bytes);
break;
case PE_ARCH_arm:
- case PE_ARCH_arm_epoc:
case PE_ARCH_arm_wince:
jmp_bytes = jmp_arm_bytes;
jmp_byte_count = sizeof (jmp_arm_bytes);
break;
+ case PE_ARCH_aarch64:
+ jmp_bytes = jmp_aarch64_bytes;
+ jmp_byte_count = sizeof (jmp_aarch64_bytes);
+ break;
default:
abort ();
}
}
- oname = xmalloc (20);
- sprintf (oname, "d%06d.o", tmp_seq);
+ if (asprintf (&oname, "%s_d%06d.o", dll_symname, tmp_seq) < 4)
+ /* In theory we should return NULL here at let our caller decide what to
+ do. But currently the return value is not checked, just used, and
+ besides, this condition only happens when the system has run out of
+ memory. So just give up. */
+ exit (EXIT_FAILURE);
tmp_seq++;
abfd = bfd_create (oname, parent);
+ free (oname);
bfd_find_target (pe_details->object_target, abfd);
bfd_make_writable (abfd);
id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2);
id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2);
- if (*exp->internal_name == '@')
+ if (*internal_name == '@')
{
quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC,
BSF_GLOBAL, 0);
if (include_jmp_stub)
- quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0);
- quick_symbol (abfd, "__imp_", exp->internal_name, "", id5,
+ quick_symbol (abfd, "", internal_name, "", tx, BSF_GLOBAL, 0);
+ quick_symbol (abfd, "__imp_", internal_name, "", id5,
BSF_GLOBAL, 0);
/* Fastcall applies only to functions,
so no need for auto-import symbol. */
quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC,
BSF_GLOBAL, 0);
if (include_jmp_stub)
- quick_symbol (abfd, U (""), exp->internal_name, "", tx,
+ quick_symbol (abfd, U (""), internal_name, "", tx,
BSF_GLOBAL, 0);
- quick_symbol (abfd, "__imp_", U (""), exp->internal_name, id5,
+ quick_symbol (abfd, "__imp_", U (""), internal_name, id5,
BSF_GLOBAL, 0);
/* Symbol to reference ord/name of imported
data symbol, used to implement auto-import. */
if (exp->flag_data)
- quick_symbol (abfd, "__nm_", U (""), exp->internal_name, id6,
+ quick_symbol (abfd, "__nm_", U (""), internal_name, id6,
BSF_GLOBAL,0);
}
if (pe_dll_compat_implib)
- quick_symbol (abfd, "___imp_", exp->internal_name, "", id5,
+ quick_symbol (abfd, "___imp_", internal_name, "", id5,
BSF_GLOBAL, 0);
if (include_jmp_stub)
{
- bfd_set_section_size (abfd, tx, jmp_byte_count);
+ bfd_set_section_size (tx, jmp_byte_count);
td = xmalloc (jmp_byte_count);
tx->contents = td;
memcpy (td, jmp_bytes, jmp_byte_count);
switch (pe_details->pe_arch)
{
case PE_ARCH_i386:
-#ifdef pe_use_x86_64
+#ifdef pe_use_plus
quick_reloc (abfd, 2, BFD_RELOC_32_PCREL, 2);
#else
/* Mark this object as SAFESEH compatible. */
quick_symbol (abfd, "", "@feat.00", "", bfd_abs_section_ptr,
BSF_LOCAL, 1);
- quick_reloc (abfd, 2, BFD_RELOC_32, 2);
+ quick_reloc (abfd, 2, BFD_RELOC_32, 2);
#endif
break;
case PE_ARCH_sh:
quick_reloc (abfd, 4, BFD_RELOC_LO16, 2);
break;
case PE_ARCH_arm:
- case PE_ARCH_arm_epoc:
- case PE_ARCH_arm_wince:
+ case PE_ARCH_arm_wince:
quick_reloc (abfd, 8, BFD_RELOC_32, 2);
break;
+ case PE_ARCH_aarch64:
+ quick_reloc (abfd, 0, BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL, 2);
+ quick_reloc (abfd, 4, BFD_RELOC_AARCH64_ADD_LO12, 2);
+ break;
default:
abort ();
}
save_relocs (tx);
}
else
- bfd_set_section_size (abfd, tx, 0);
+ bfd_set_section_size (tx, 0);
- bfd_set_section_size (abfd, id7, 4);
+ bfd_set_section_size (id7, 4);
d7 = xmalloc (4);
id7->contents = d7;
memset (d7, 0, 4);
quick_reloc (abfd, 0, BFD_RELOC_RVA, 5);
save_relocs (id7);
- bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE);
+ bfd_set_section_size (id5, PE_IDATA5_SIZE);
d5 = xmalloc (PE_IDATA5_SIZE);
id5->contents = d5;
memset (d5, 0, PE_IDATA5_SIZE);
save_relocs (id5);
}
- bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE);
+ bfd_set_section_size (id4, PE_IDATA4_SIZE);
d4 = xmalloc (PE_IDATA4_SIZE);
id4->contents = d4;
memset (d4, 0, PE_IDATA4_SIZE);
if (exp->flag_noname)
{
len = 0;
- bfd_set_section_size (abfd, id6, 0);
+ bfd_set_section_size (id6, 0);
}
else
{
+ int ord;
+
/* { short, asciz } */
if (exp->its_name)
len = 2 + strlen (exp->its_name) + 1;
len = 2 + strlen (exp->name) + 1;
if (len & 1)
len++;
- bfd_set_section_size (abfd, id6, len);
+ bfd_set_section_size (id6, len);
d6 = xmalloc (len);
id6->contents = d6;
memset (d6, 0, len);
- d6[0] = exp->hint & 0xff;
- d6[1] = exp->hint >> 8;
+
+ /* PR 20880: Use exp->hint as a backup, just in case exp->ordinal
+ contains an invalid value (-1). */
+ ord = (exp->ordinal >= 0) ? exp->ordinal : exp->hint;
+ d6[0] = ord;
+ d6[1] = ord >> 8;
+
if (exp->its_name)
strcpy ((char*) d6 + 2, exp->its_name);
else
return abfd;
}
-static bfd *
-make_singleton_name_imp (const char *import, bfd *parent)
-{
- /* Name thunks go to idata$4. */
- asection *id5;
- unsigned char *d5;
- char *oname;
- bfd *abfd;
-
- oname = xmalloc (20);
- sprintf (oname, "nmimp%06d.o", tmp_seq2);
- tmp_seq2++;
-
- abfd = bfd_create (oname, parent);
- bfd_find_target (pe_details->object_target, abfd);
- bfd_make_writable (abfd);
-
- bfd_set_format (abfd, bfd_object);
- bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0);
-
- symptr = 0;
- symtab = xmalloc (3 * sizeof (asymbol *));
- id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2);
- quick_symbol (abfd, "__imp_", import, "", id5, BSF_GLOBAL, 0);
-
- /* We need space for the real thunk and for the null terminator. */
- bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE * 2);
- d5 = xmalloc (PE_IDATA5_SIZE * 2);
- id5->contents = d5;
- memset (d5, 0, PE_IDATA5_SIZE * 2);
- quick_reloc (abfd, 0, BFD_RELOC_RVA, 2);
- save_relocs (id5);
-
- bfd_set_symtab (abfd, symtab, symptr);
-
- bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA4_SIZE * 2);
-
- bfd_make_readable (abfd);
- return abfd;
-}
-
static bfd *
make_singleton_name_thunk (const char *import, bfd *parent)
{
char *oname;
bfd *abfd;
- oname = xmalloc (20);
- sprintf (oname, "nmth%06d.o", tmp_seq);
+ if (asprintf (&oname, "%s_nmth%06d.o", dll_symname, tmp_seq) < 4)
+ /* In theory we should return NULL here at let our caller decide what to
+ do. But currently the return value is not checked, just used, and
+ besides, this condition only happens when the system has run out of
+ memory. So just give up. */
+ exit (EXIT_FAILURE);
tmp_seq++;
abfd = bfd_create (oname, parent);
+ free (oname);
bfd_find_target (pe_details->object_target, abfd);
bfd_make_writable (abfd);
quick_symbol (abfd, "__nm_", import, "", UNDSEC, BSF_GLOBAL, 0);
/* We need space for the real thunk and for the null terminator. */
- bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE * 2);
+ bfd_set_section_size (id4, PE_IDATA4_SIZE * 2);
d4 = xmalloc (PE_IDATA4_SIZE * 2);
id4->contents = d4;
memset (d4, 0, PE_IDATA4_SIZE * 2);
return abfd;
}
-static char *
-make_import_fixup_mark (arelent *rel)
+static const char *
+make_import_fixup_mark (arelent *rel, char *name)
{
/* We convert reloc to symbol, for later reference. */
- static int counter;
- static char *fixup_name = NULL;
- static size_t buffer_len = 0;
-
+ static unsigned int counter;
struct bfd_symbol *sym = *rel->sym_ptr_ptr;
-
bfd *abfd = bfd_asymbol_bfd (sym);
struct bfd_link_hash_entry *bh;
+ char *fixup_name, buf[256];
+ size_t prefix_len;
- if (!fixup_name)
- {
- fixup_name = xmalloc (384);
- buffer_len = 384;
- }
-
- if (strlen (sym->name) + 25 > buffer_len)
- /* Assume 25 chars for "__fu" + counter + "_". If counter is
- bigger than 20 digits long, we've got worse problems than
- overflowing this buffer... */
- {
- free (fixup_name);
- /* New buffer size is length of symbol, plus 25, but
- then rounded up to the nearest multiple of 128. */
- buffer_len = ((strlen (sym->name) + 25) + 127) & ~127;
- fixup_name = xmalloc (buffer_len);
- }
-
- sprintf (fixup_name, "__fu%d_%s", counter++, sym->name);
+ /* "name" buffer has space before the symbol name for prefixes. */
+ sprintf (buf, "__fu%d_", counter++);
+ prefix_len = strlen (buf);
+ fixup_name = name - prefix_len;
+ memcpy (fixup_name, buf, prefix_len);
bh = NULL;
bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL,
current_sec, /* sym->section, */
- rel->address, NULL, TRUE, FALSE, &bh);
+ rel->address, NULL, true, false, &bh);
- return fixup_name;
+ return bh->root.string;
}
/* .section .idata$2
- .rva __nm_thnk_SYM (singleton thunk with name of func)
- .long 0
- .long 0
- .rva __my_dll_iname (name of dll)
- .rva __fuNN_SYM (pointer to reference (address) in text) */
+ .rva __nm_thnk_SYM (singleton thunk with name of func)
+ .long 0
+ .long 0
+ .rva __my_dll_iname (name of dll)
+ .rva __fuNN_SYM (pointer to reference (address) in text) */
static bfd *
make_import_fixup_entry (const char *name,
char *oname;
bfd *abfd;
- oname = xmalloc (20);
- sprintf (oname, "fu%06d.o", tmp_seq);
+ if (asprintf (&oname, "%s_fu%06d.o", dll_symname, tmp_seq) < 4)
+ /* In theory we should return NULL here at let our caller decide what to
+ do. But currently the return value is not checked, just used, and
+ besides, this condition only happens when the system has run out of
+ memory. So just give up. */
+ exit (EXIT_FAILURE);
tmp_seq++;
abfd = bfd_create (oname, parent);
+ free (oname);
bfd_find_target (pe_details->object_target, abfd);
bfd_make_writable (abfd);
quick_symbol (abfd, "__nm_thnk_", name, "", UNDSEC, BSF_GLOBAL, 0);
quick_symbol (abfd, U (""), symname, "_iname", UNDSEC, BSF_GLOBAL, 0);
- /* For relocator v2 we have to use the .idata$5 element and not
- fixup_name. */
- if (link_info.pei386_runtime_pseudo_reloc == 2)
- quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0);
- else
- quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0);
+ quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0);
- bfd_set_section_size (abfd, id2, 20);
+ bfd_set_section_size (id2, 20);
d2 = xmalloc (20);
id2->contents = d2;
memset (d2, 0, 20);
}
/* .section .rdata_runtime_pseudo_reloc
- .long addend
- .rva __fuNN_SYM (pointer to reference (address) in text) */
+ .long addend
+ .rva __fuNN_SYM (pointer to reference (address) in text) */
static bfd *
make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED,
unsigned char *rt_rel_d;
char *oname;
bfd *abfd;
- oname = xmalloc (20);
- sprintf (oname, "rtr%06d.o", tmp_seq);
+ bfd_size_type size;
+
+ if (asprintf (&oname, "%s_rtr%06d.o", dll_symname, tmp_seq) < 4)
+ /* In theory we should return NULL here at let our caller decide what to
+ do. But currently the return value is not checked, just used, and
+ besides, this condition only happens when the system has run out of
+ memory. So just give up. */
+ exit (EXIT_FAILURE);
tmp_seq++;
abfd = bfd_create (oname, parent);
+ free (oname);
bfd_find_target (pe_details->object_target, abfd);
bfd_make_writable (abfd);
bfd_set_format (abfd, bfd_object);
bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0);
- symptr = 0;
if (link_info.pei386_runtime_pseudo_reloc == 2)
{
- symtab = xmalloc ((runtime_pseudp_reloc_v2_init ? 3 : 6) * sizeof (asymbol *));
+ if (runtime_pseudp_reloc_v2_init)
+ size = 3 * sizeof (asymbol *);
+ else
+ size = 6 * sizeof (asymbol *);
}
else
- {
- symtab = xmalloc (2 * sizeof (asymbol *));
- }
- rt_rel = quick_section (abfd, ".rdata_runtime_pseudo_reloc",
- SEC_HAS_CONTENTS, 2);
+ size = 2 * sizeof (asymbol *);
+
+ symptr = 0;
+ symtab = xmalloc (size);
+
+ rt_rel
+ = quick_section (abfd, ".rdata_runtime_pseudo_reloc", SEC_HAS_CONTENTS, 2);
+ bfd_coff_set_long_section_names (abfd, true);
quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0);
if (link_info.pei386_runtime_pseudo_reloc == 2)
{
- size_t size = 12;
- if (! runtime_pseudp_reloc_v2_init)
- {
- size += 12;
- runtime_pseudp_reloc_v2_init = 1;
- }
+ size = 12;
+ if (!runtime_pseudp_reloc_v2_init)
+ {
+ size += 12;
+ runtime_pseudp_reloc_v2_init = true;
+ }
+
quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0);
- bfd_set_section_size (abfd, rt_rel, size);
+ bfd_set_section_size (rt_rel, size);
rt_rel_d = xmalloc (size);
rt_rel->contents = rt_rel_d;
memset (rt_rel_d, 0, size);
- quick_reloc (abfd, size - 8, BFD_RELOC_RVA, 1);
- quick_reloc (abfd, size - 12, BFD_RELOC_RVA, 2);
- bfd_put_32 (abfd, bitsize, rt_rel_d + (size - 4));
- if (size != 12)
- bfd_put_32 (abfd, 1, rt_rel_d + 8);
+ quick_reloc (abfd, size - 8, BFD_RELOC_RVA, 1);
+ quick_reloc (abfd, size - 12, BFD_RELOC_RVA, 2);
+ bfd_put_32 (abfd, bitsize, rt_rel_d + (size - 4));
+ if (size != 12)
+ bfd_put_32 (abfd, 1, rt_rel_d + 8);
save_relocs (rt_rel);
bfd_set_symtab (abfd, symtab, symptr);
bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, size);
- }
+ }
else
- {
- bfd_set_section_size (abfd, rt_rel, 8);
+ {
+ bfd_set_section_size (rt_rel, 8);
rt_rel_d = xmalloc (8);
rt_rel->contents = rt_rel_d;
memset (rt_rel_d, 0, 8);
bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8);
}
+
bfd_make_readable (abfd);
return abfd;
}
/* .section .rdata
- .rva __pei386_runtime_relocator */
+ .rva __pei386_runtime_relocator */
static bfd *
pe_create_runtime_relocator_reference (bfd *parent)
char *oname;
bfd *abfd;
- oname = xmalloc (20);
- sprintf (oname, "ertr%06d.o", tmp_seq);
+ if (asprintf (&oname, "%s_ertr%06d.o", dll_symname, tmp_seq) < 4)
+ /* In theory we should return NULL here at let our caller decide what to
+ do. But currently the return value is not checked, just used, and
+ besides, this condition only happens when the system has run out of
+ memory. So just give up. */
+ exit (EXIT_FAILURE);
tmp_seq++;
abfd = bfd_create (oname, parent);
+ free (oname);
bfd_find_target (pe_details->object_target, abfd);
bfd_make_writable (abfd);
quick_symbol (abfd, "", U ("_pei386_runtime_relocator"), "", UNDSEC,
BSF_NO_FLAGS, 0);
- bfd_set_section_size (abfd, extern_rt_rel, PE_IDATA5_SIZE);
- extern_rt_rel_d = xmalloc (PE_IDATA5_SIZE);
+ bfd_set_section_size (extern_rt_rel, PE_IDATA5_SIZE);
+ extern_rt_rel_d = xcalloc (1, PE_IDATA5_SIZE);
extern_rt_rel->contents = extern_rt_rel_d;
quick_reloc (abfd, 0, BFD_RELOC_RVA, 1);
}
void
-pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend)
+pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend, char *name,
+ const char *symname)
{
- char buf[300];
- struct bfd_symbol *sym = *rel->sym_ptr_ptr;
- struct bfd_link_hash_entry *name_thunk_sym;
- struct bfd_link_hash_entry *name_imp_sym;
- const char *name = sym->name;
- char *fixup_name = make_import_fixup_mark (rel);
+ const char *fixup_name = make_import_fixup_mark (rel, name);
bfd *b;
- int need_import_table = 1;
-
- sprintf (buf, "__imp_%s", name);
- name_imp_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
-
- sprintf (buf, "__nm_thnk_%s", name);
-
- name_thunk_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
-
- /* For version 2 pseudo relocation we don't need to add an import
- if the import symbol is already present. */
- if (link_info.pei386_runtime_pseudo_reloc == 2
- && name_imp_sym
- && name_imp_sym->type == bfd_link_hash_defined)
- need_import_table = 0;
-
- if (need_import_table == 1
- && (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined))
- {
- b = make_singleton_name_thunk (name, link_info.output_bfd);
- add_bfd_to_link (b, b->filename, &link_info);
-
- /* If we ever use autoimport, we have to cast text section writable.
- But not for version 2. */
- if (link_info.pei386_runtime_pseudo_reloc != 2)
- {
- config.text_read_only = FALSE;
- link_info.output_bfd->flags &= ~WP_TEXT;
- }
- if (link_info.pei386_runtime_pseudo_reloc == 2)
- {
- b = make_singleton_name_imp (name, link_info.output_bfd);
- add_bfd_to_link (b, b->filename, &link_info);
- }
- }
- if ((addend == 0 || link_info.pei386_runtime_pseudo_reloc)
- && need_import_table == 1)
+ /* This is the original implementation of the auto-import feature, which
+ primarily relied on the OS loader to patch things up with some help
+ from the pseudo-relocator to overcome the main limitation. See the
+ comment at the beginning of the file for an overview of the feature. */
+ if (link_info.pei386_runtime_pseudo_reloc != 2)
{
- extern char * pe_data_import_dll;
- char * symname = pe_data_import_dll ? pe_data_import_dll : "unknown";
+ struct bfd_link_hash_entry *name_thunk_sym;
+ /* name buffer is allocated with space at beginning for prefixes. */
+ char *thname = name - (sizeof "__nm_thnk_" - 1);
+ memcpy (thname, "__nm_thnk_", sizeof "__nm_thnk_" - 1);
+ name_thunk_sym = bfd_link_hash_lookup (link_info.hash, thname, 0, 0, 1);
- b = make_import_fixup_entry (name, fixup_name, symname,
- link_info.output_bfd);
- add_bfd_to_link (b, b->filename, &link_info);
- }
+ if (!(name_thunk_sym && name_thunk_sym->type == bfd_link_hash_defined))
+ {
+ b = make_singleton_name_thunk (name, link_info.output_bfd);
+ add_bfd_to_link (b, bfd_get_filename (b), &link_info);
- if ((link_info.pei386_runtime_pseudo_reloc != 0 && addend != 0)
- || link_info.pei386_runtime_pseudo_reloc == 2)
- {
- if (pe_dll_extra_pe_debug)
- printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n",
- fixup_name, (int) addend);
+ /* If we ever use autoimport, we have to cast text section writable. */
+ config.text_read_only = false;
+ link_info.output_bfd->flags &= ~WP_TEXT;
+ }
- b = make_runtime_pseudo_reloc (name, fixup_name, addend, rel->howto->bitsize,
+ if (addend == 0 || link_info.pei386_runtime_pseudo_reloc == 1)
+ {
+ b = make_import_fixup_entry (name, fixup_name, symname,
link_info.output_bfd);
- add_bfd_to_link (b, b->filename, &link_info);
+ add_bfd_to_link (b, bfd_get_filename (b), &link_info);
+ }
+ }
- if (runtime_pseudo_relocs_created == 0)
- {
- b = pe_create_runtime_relocator_reference (link_info.output_bfd);
- add_bfd_to_link (b, b->filename, &link_info);
- }
- runtime_pseudo_relocs_created++;
- }
- else if (addend != 0)
- {
- einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"),
- s->owner, s, rel->address, sym->name);
- einfo ("%X");
- }
-}
+ /* In the original implementation, the pseudo-relocator was only used when
+ the addend was not null. In the new implementation, the OS loader is
+ completely bypassed and the pseudo-relocator does the entire work. */
+ if ((addend != 0 && link_info.pei386_runtime_pseudo_reloc == 1)
+ || link_info.pei386_runtime_pseudo_reloc == 2)
+ {
+ if (pe_dll_extra_pe_debug)
+ printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n",
+ fixup_name, (int) addend);
+ b = make_runtime_pseudo_reloc (name, fixup_name, addend,
+ rel->howto->bitsize,
+ link_info.output_bfd);
+ add_bfd_to_link (b, bfd_get_filename (b), &link_info);
+
+ if (runtime_pseudo_relocs_created++ == 0)
+ {
+ b = pe_create_runtime_relocator_reference (link_info.output_bfd);
+ add_bfd_to_link (b, bfd_get_filename (b), &link_info);
+ }
+ }
+
+ else if (addend != 0)
+ einfo (_("%X%P: %H: variable '%pT' can't be auto-imported; please read the documentation for ld's --enable-auto-import for details\n"),
+ s->owner, s, rel->address, (*rel->sym_ptr_ptr)->name);
+}
void
pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_info *info)
bfd *ibfd;
bfd *head = 0;
- dll_filename = (def->name) ? def->name : dll_name;
- dll_symname = xstrdup (dll_filename);
- for (i = 0; dll_symname[i]; i++)
- if (!ISALNUM (dll_symname[i]))
- dll_symname[i] = '_';
-
unlink_if_ordinary (impfilename);
outarch = bfd_openw (impfilename, 0);
if (!outarch)
{
/* xgettext:c-format */
- einfo (_("%XCan't open .lib file: %s\n"), impfilename);
+ einfo (_("%X%P: can't open .lib file: %s\n"), impfilename);
return;
}
- /* xgettext:c-format */
- info_msg (_("Creating library file: %s\n"), impfilename);
+ if (verbose)
+ /* xgettext:c-format */
+ info_msg (_("Creating library file: %s\n"), impfilename);
bfd_set_format (outarch, bfd_archive);
outarch->has_armap = 1;
ar_head = make_head (outarch);
/* Iterate the input BFDs, looking for exclude-modules-for-implib. */
- for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
+ for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
{
/* Iterate the exclude list. */
struct exclude_list_struct *ex;
{
if (ex->type != EXCLUDEFORIMPLIB)
continue;
- found = (filename_cmp (ex->string, ibfd->filename) == 0);
+ found = (filename_cmp (ex->string, bfd_get_filename (ibfd)) == 0);
}
/* If it matched, we must open a fresh BFD for it (the original
- input BFD is still needed for the DLL's final link) and add
- it into the archive member chain. */
+ input BFD is still needed for the DLL's final link) and add
+ it into the archive member chain. */
if (found)
{
bfd *newbfd = bfd_openr (ibfd->my_archive
- ? ibfd->my_archive->filename : ibfd->filename, NULL);
+ ? bfd_get_filename (ibfd->my_archive)
+ : bfd_get_filename (ibfd), NULL);
if (!newbfd)
{
- einfo (_("%Xbfd_openr %s: %E\n"), ibfd->filename);
+ einfo (_("%X%P: bfd_openr %s: %E\n"), bfd_get_filename (ibfd));
return;
}
if (ibfd->my_archive)
bfd *arbfd = newbfd;
if (!bfd_check_format_matches (arbfd, bfd_archive, NULL))
{
- einfo (_("%X%s(%s): can't find member in non-archive file"),
- ibfd->my_archive->filename, ibfd->filename);
+ einfo (_("%X%P: %s(%s): can't find member in non-archive file"),
+ bfd_get_filename (ibfd->my_archive),
+ bfd_get_filename (ibfd));
return;
}
newbfd = NULL;
while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0)
{
- if (filename_cmp (newbfd->filename, ibfd->filename) == 0)
+ if (filename_cmp (bfd_get_filename (newbfd),
+ bfd_get_filename (ibfd)) == 0)
break;
}
if (!newbfd)
{
- einfo (_("%X%s(%s): can't find member in archive"),
- ibfd->my_archive->filename, ibfd->filename);
+ einfo (_("%X%P: %s(%s): can't find member in archive"),
+ bfd_get_filename (ibfd->my_archive),
+ bfd_get_filename (ibfd));
return;
}
}
/* Don't add PRIVATE entries to import lib. */
if (pe_def_file->exports[i].flag_private)
continue;
+
def->exports[i].internal_name = def->exports[i].name;
- n = make_one (def->exports + i, outarch,
- ! (def->exports + i)->flag_data);
+
+ /* PR 19803: If a symbol has been discard due to garbage
+ collection then do not create any exports for it. */
+ {
+ struct coff_link_hash_entry *h;
+
+ h = coff_link_hash_lookup (coff_hash_table (info), internal,
+ false, false, false);
+ if (h != NULL
+ /* If the symbol is hidden and undefined then it
+ has been swept up by garbage collection. */
+ && h->symbol_class == C_HIDDEN
+ && h->root.u.def.section == bfd_und_section_ptr)
+ continue;
+
+ /* If necessary, check with an underscore prefix as well. */
+ if (pe_details->underscored && internal[0] != '@')
+ {
+ char *name;
+
+ name = xmalloc (strlen (internal) + 2);
+ sprintf (name, "_%s", internal);
+
+ h = coff_link_hash_lookup (coff_hash_table (info), name,
+ false, false, false);
+ free (name);
+
+ if (h != NULL
+ /* If the symbol is hidden and undefined then it
+ has been swept up by garbage collection. */
+ && h->symbol_class == C_HIDDEN
+ && h->root.u.def.section == bfd_und_section_ptr)
+ continue;
+ }
+ }
+
+ n = make_one (def->exports + i, outarch, !(def->exports + i)->flag_data);
n->archive_next = head;
head = n;
def->exports[i].internal_name = internal;
head = ar_tail;
if (! bfd_set_archive_head (outarch, head))
- einfo ("%Xbfd_set_archive_head: %E\n");
+ einfo ("%X%P: bfd_set_archive_head: %E\n");
if (! bfd_close (outarch))
- einfo ("%Xbfd_close %s: %E\n", impfilename);
+ einfo ("%X%P: bfd_close %s: %E\n", impfilename);
while (head != NULL)
{
const char *oname;
};
-struct key_value *udef_table;
+static struct key_value *udef_table;
static int undef_sort_cmp (const void *l1, const void *r1)
{
struct bfd_link_hash_entry *h = NULL;
struct key_value *kv;
struct key_value key;
- char *at, *lname = (char *) alloca (strlen (name) + 3);
-
+ char *at, *lname = xmalloc (strlen (name) + 3);
+
strcpy (lname, name);
at = strchr (lname + (lname[0] == '@'), '@');
if (kv)
{
- h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE);
+ h = bfd_link_hash_lookup (linfo->hash, kv->oname, false, false, false);
if (h->type == bfd_link_hash_undefined)
- return h;
+ goto return_h;
}
+
if (lname[0] == '?')
- return NULL;
+ goto return_NULL;
+
if (at || lname[0] == '@')
{
if (lname[0] == '@')
- {
+ {
if (pe_details->underscored)
lname[0] = '_';
else
- strcpy (lname, lname + 1);
+ /* Use memmove rather than strcpy as that
+ can handle overlapping buffers. */
+ memmove (lname, lname + 1, strlen (lname));
key.key = lname;
kv = bsearch (&key, udef_table, undef_count,
sizeof (struct key_value), undef_sort_cmp);
if (kv)
{
- h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE);
+ h = bfd_link_hash_lookup (linfo->hash, kv->oname, false, false, false);
if (h->type == bfd_link_hash_undefined)
- return h;
+ goto return_h;
}
}
if (at)
- *strchr (lname, '@') = 0;
+ *strchr (lname, '@') = 0;
key.key = lname;
kv = bsearch (&key, udef_table, undef_count,
sizeof (struct key_value), undef_sort_cmp);
if (kv)
{
- h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE);
+ h = bfd_link_hash_lookup (linfo->hash, kv->oname, false, false, false);
if (h->type == bfd_link_hash_undefined)
- return h;
+ goto return_h;
}
- return NULL;
+ goto return_NULL;
}
strcat (lname, "@");
if (kv)
{
- h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE);
+ h = bfd_link_hash_lookup (linfo->hash, kv->oname, false, false, false);
if (h->type == bfd_link_hash_undefined)
- return h;
+ goto return_h;
}
if (lname[0] == '_' && pe_details->underscored)
if (kv)
{
- h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE);
+ h = bfd_link_hash_lookup (linfo->hash, kv->oname, false, false, false);
if (h->type == bfd_link_hash_undefined)
- return h;
+ goto return_h;
}
-
- return NULL;
+
+ return_NULL:
+ h = NULL;
+ return_h:
+ free (lname);
+ return h;
}
-static bfd_boolean
+static bool
pe_undef_count (struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
- void *inf ATTRIBUTE_UNUSED)
+ void *inf ATTRIBUTE_UNUSED)
{
if (h->type == bfd_link_hash_undefined)
undef_count++;
- return TRUE;
+ return true;
}
-static bfd_boolean
+static bool
pe_undef_fill (struct bfd_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
{
if (h->type == bfd_link_hash_undefined)
at = strchr (udef_table[undef_count].key
+ (udef_table[undef_count].key[0] == '@'), '@');
if (at)
- at[1] = 0;
+ at[1] = 0;
udef_table[undef_count].oname = h->root.string;
undef_count++;
}
- return TRUE;
+ return true;
}
static void
ldlang_add_file (fake_file);
if (!bfd_link_add_symbols (abfd, linfo))
- einfo ("%Xaddsym %s: %E\n", name);
+ einfo (_("%X%P: add symbols %s: %E\n"), name);
}
void
pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *linfo)
{
- int i, j;
- def_file_module *module;
- def_file_import *imp;
-
pe_dll_id_target (bfd_get_target (output_bfd));
- if (!pe_def_file)
- return;
-
- imp = pe_def_file->imports;
-
- pe_create_undef_table ();
-
- for (module = pe_def_file->modules; module; module = module->next)
+ if (pe_def_file)
{
- int do_this_dll = 0;
+ int i, j;
+ def_file_module *module;
+ def_file_import *imp;
- for (i = 0; i < pe_def_file->num_imports && imp[i].module != module; i++)
- ;
- if (i >= pe_def_file->num_imports)
- continue;
+ imp = pe_def_file->imports;
- dll_filename = module->name;
- dll_symname = xstrdup (module->name);
- for (j = 0; dll_symname[j]; j++)
- if (!ISALNUM (dll_symname[j]))
- dll_symname[j] = '_';
+ pe_create_undef_table ();
- for (; i < pe_def_file->num_imports && imp[i].module == module; i++)
+ for (module = pe_def_file->modules; module; module = module->next)
{
- def_file_export exp;
- struct bfd_link_hash_entry *blhe;
- int lead_at = (*imp[i].internal_name == '@');
- /* See if we need this import. */
- size_t len = strlen (imp[i].internal_name);
- char *name = xmalloc (len + 2 + 6);
- bfd_boolean include_jmp_stub = FALSE;
- bfd_boolean is_cdecl = FALSE;
- bfd_boolean is_undef = FALSE;
-
- if (!lead_at && strchr (imp[i].internal_name, '@') == NULL)
- is_cdecl = TRUE;
-
- if (lead_at)
- sprintf (name, "%s", imp[i].internal_name);
- else
- sprintf (name, "%s%s",U (""), imp[i].internal_name);
+ int do_this_dll = 0;
- blhe = bfd_link_hash_lookup (linfo->hash, name,
- FALSE, FALSE, FALSE);
+ for (i = 0; i < pe_def_file->num_imports; i++)
+ if (imp[i].module == module)
+ break;
+ if (i >= pe_def_file->num_imports)
+ continue;
+
+ dll_filename = module->name;
+ dll_symname = xstrdup (module->name);
+ for (j = 0; dll_symname[j]; j++)
+ if (!ISALNUM (dll_symname[j]))
+ dll_symname[j] = '_';
- /* Include the jump stub for <sym> only if the <sym>
- is undefined. */
- if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined))
+ for (; i < pe_def_file->num_imports && imp[i].module == module; i++)
{
+ def_file_export exp;
+ struct bfd_link_hash_entry *blhe;
+ int lead_at = (*imp[i].internal_name == '@');
+ /* See if we need this import. */
+ size_t len = strlen (imp[i].internal_name);
+ char *name = xmalloc (len + 2 + 6);
+ bool include_jmp_stub = false;
+ bool is_cdecl = false;
+ bool is_undef = false;
+
+ if (!lead_at && strchr (imp[i].internal_name, '@') == NULL)
+ is_cdecl = true;
+
if (lead_at)
- sprintf (name, "%s%s", "__imp_", imp[i].internal_name);
+ sprintf (name, "%s", imp[i].internal_name);
else
- sprintf (name, "%s%s%s", "__imp_", U (""),
- imp[i].internal_name);
+ sprintf (name, "%s%s",U (""), imp[i].internal_name);
blhe = bfd_link_hash_lookup (linfo->hash, name,
- FALSE, FALSE, FALSE);
- if (blhe)
- is_undef = (blhe->type == bfd_link_hash_undefined);
- }
- else
- {
- include_jmp_stub = TRUE;
- is_undef = (blhe->type == bfd_link_hash_undefined);
- }
+ false, false, false);
- if (is_cdecl && (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)))
- {
- sprintf (name, "%s%s",U (""), imp[i].internal_name);
- blhe = pe_find_cdecl_alias_match (linfo, name);
- include_jmp_stub = TRUE;
- if (blhe)
- is_undef = (blhe->type == bfd_link_hash_undefined);
- }
+ /* Include the jump stub for <sym> only if the <sym>
+ is undefined. */
+ if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined))
+ {
+ if (lead_at)
+ sprintf (name, "%s%s", "__imp_", imp[i].internal_name);
+ else
+ sprintf (name, "%s%s%s", "__imp_", U (""),
+ imp[i].internal_name);
+
+ blhe = bfd_link_hash_lookup (linfo->hash, name,
+ false, false, false);
+ if (blhe)
+ is_undef = (blhe->type == bfd_link_hash_undefined);
+
+ if (is_cdecl && (!blhe || !is_undef))
+ {
+ blhe = pe_find_cdecl_alias_match (linfo, name + 6);
+ include_jmp_stub = true;
+ if (blhe)
+ is_undef = (blhe->type == bfd_link_hash_undefined);
+ }
+ }
+ else
+ {
+ include_jmp_stub = true;
+ is_undef = (blhe->type == bfd_link_hash_undefined);
+ }
- free (name);
+ free (name);
- if (is_undef)
- {
- bfd *one;
- /* We do. */
- if (!do_this_dll)
+ if (is_undef)
{
- bfd *ar_head = make_head (output_bfd);
- add_bfd_to_link (ar_head, ar_head->filename, linfo);
- do_this_dll = 1;
+ bfd *one;
+ /* We do. */
+ if (!do_this_dll)
+ {
+ bfd *ar_head = make_head (output_bfd);
+ add_bfd_to_link (ar_head, bfd_get_filename (ar_head),
+ linfo);
+ do_this_dll = 1;
+ }
+ exp.internal_name = imp[i].internal_name;
+ exp.name = imp[i].name;
+ exp.its_name = imp[i].its_name;
+ exp.ordinal = imp[i].ordinal;
+ exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0;
+ exp.flag_private = 0;
+ exp.flag_constant = 0;
+ exp.flag_data = imp[i].data;
+ exp.flag_noname = exp.name ? 0 : 1;
+ one = make_one (&exp, output_bfd,
+ !exp.flag_data && include_jmp_stub);
+ add_bfd_to_link (one, bfd_get_filename (one), linfo);
}
- exp.internal_name = imp[i].internal_name;
- exp.name = imp[i].name;
- exp.its_name = imp[i].its_name;
- exp.ordinal = imp[i].ordinal;
- exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0;
- exp.flag_private = 0;
- exp.flag_constant = 0;
- exp.flag_data = imp[i].data;
- exp.flag_noname = exp.name ? 0 : 1;
- one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub);
- add_bfd_to_link (one, one->filename, linfo);
}
+ if (do_this_dll)
+ {
+ bfd *ar_tail = make_tail (output_bfd);
+ add_bfd_to_link (ar_tail, bfd_get_filename (ar_tail), linfo);
+ }
+
+ free (dll_symname);
}
- if (do_this_dll)
+
+ while (undef_count)
{
- bfd *ar_tail = make_tail (output_bfd);
- add_bfd_to_link (ar_tail, ar_tail->filename, linfo);
+ --undef_count;
+ free (udef_table[undef_count].key);
}
-
- free (dll_symname);
+ free (udef_table);
}
- while (undef_count)
+ if (pe_def_file && pe_def_file->name)
+ dll_filename = pe_def_file->name;
+ else
{
- --undef_count;
- free (udef_table[undef_count].key);
+ dll_filename = bfd_get_filename (output_bfd);
+ for (const char *p = dll_filename; *p; p++)
+ if (*p == '\\' || *p == '/' || *p == ':')
+ dll_filename = p + 1;
}
- free (udef_table);
+ dll_symname = xstrdup (dll_filename);
+ for (int i = 0; dll_symname[i]; i++)
+ if (!ISALNUM (dll_symname[i]))
+ dll_symname[i] = '_';
}
/* We were handed a *.DLL file. Parse it and turn it into a set of
handled, FALSE if not. */
static unsigned int
-pe_get16 (bfd *abfd, int where)
+pe_get16 (bfd *abfd, int where, bool *fail)
{
unsigned char b[2];
- bfd_seek (abfd, (file_ptr) where, SEEK_SET);
- bfd_bread (b, (bfd_size_type) 2, abfd);
+ if (bfd_seek (abfd, where, SEEK_SET) != 0
+ || bfd_read (b, 2, abfd) != 2)
+ {
+ *fail = true;
+ return 0;
+ }
return b[0] + (b[1] << 8);
}
static unsigned int
-pe_get32 (bfd *abfd, int where)
+pe_get32 (bfd *abfd, int where, bool *fail)
{
unsigned char b[4];
- bfd_seek (abfd, (file_ptr) where, SEEK_SET);
- bfd_bread (b, (bfd_size_type) 4, abfd);
- return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24);
+ if (bfd_seek (abfd, where, SEEK_SET) != 0
+ || bfd_read (b, 4, abfd) != 4)
+ {
+ *fail = true;
+ return 0;
+ }
+ return b[0] + (b[1] << 8) + (b[2] << 16) + ((unsigned) b[3] << 24);
}
static unsigned int
{
unsigned char *b = ptr;
- return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24);
+ return b[0] + (b[1] << 8) + (b[2] << 16) + ((unsigned) b[3] << 24);
}
-bfd_boolean
+bool
pe_implied_import_dll (const char *filename)
{
bfd *dll;
bfd_vma rdata_end = 0;
bfd_vma bss_start = 1;
bfd_vma bss_end = 0;
+ int from;
/* No, I can't use bfd here. kernel32.dll puts its export table in
the middle of the .rdata section. */
dll = bfd_openr (filename, pe_details->target_name);
if (!dll)
{
- einfo ("%Xopen %s: %E\n", filename);
- return FALSE;
+ einfo (_("%X%P: open %s: %E\n"), filename);
+ return false;
}
+ track_dependency_files (filename);
+
/* PEI dlls seem to be bfd_objects. */
if (!bfd_check_format (dll, bfd_object))
{
- einfo ("%X%s: this doesn't appear to be a DLL\n", filename);
- return FALSE;
+ notdll:
+ einfo (_("%X%P: %s: this doesn't appear to be a DLL\n"), filename);
+ return false;
}
/* Get pe_header, optional header and numbers of directory entries. */
- pe_header_offset = pe_get32 (dll, 0x3c);
+ bool fail = false;
+ pe_header_offset = pe_get32 (dll, 0x3c, &fail);
+ if (fail)
+ goto notdll;
opthdr_ofs = pe_header_offset + 4 + 20;
-#ifdef pe_use_x86_64
- num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4); /* & NumberOfRvaAndSizes. */
+#ifdef pe_use_plus
+ /* NumberOfRvaAndSizes. */
+ num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4, &fail);
#else
- num_entries = pe_get32 (dll, opthdr_ofs + 92);
+ num_entries = pe_get32 (dll, opthdr_ofs + 92, &fail);
#endif
+ if (fail)
+ goto notdll;
/* No import or export directory entry. */
if (num_entries < 1)
- return FALSE;
+ return false;
-#ifdef pe_use_x86_64
- export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4);
- export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4);
+#ifdef pe_use_plus
+ export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4, &fail);
+ export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4, &fail);
#else
- export_rva = pe_get32 (dll, opthdr_ofs + 96);
- export_size = pe_get32 (dll, opthdr_ofs + 100);
+ export_rva = pe_get32 (dll, opthdr_ofs + 96, &fail);
+ export_size = pe_get32 (dll, opthdr_ofs + 100, &fail);
#endif
+ if (fail)
+ goto notdll;
/* No export table - nothing to export. */
if (export_size == 0)
- return FALSE;
+ return false;
- nsections = pe_get16 (dll, pe_header_offset + 4 + 2);
+ nsections = pe_get16 (dll, pe_header_offset + 4 + 2, &fail);
secptr = (pe_header_offset + 4 + 20 +
- pe_get16 (dll, pe_header_offset + 4 + 16));
+ pe_get16 (dll, pe_header_offset + 4 + 16, &fail));
+ if (fail)
+ goto notdll;
expptr = 0;
/* Get the rva and size of the export section. */
{
char sname[8];
bfd_vma secptr1 = secptr + 40 * i;
- bfd_vma vaddr = pe_get32 (dll, secptr1 + 12);
- bfd_vma vsize = pe_get32 (dll, secptr1 + 16);
- bfd_vma fptr = pe_get32 (dll, secptr1 + 20);
+ bfd_vma vaddr = pe_get32 (dll, secptr1 + 12, &fail);
+ bfd_vma vsize = pe_get32 (dll, secptr1 + 16, &fail);
+ bfd_vma fptr = pe_get32 (dll, secptr1 + 20, &fail);
- bfd_seek (dll, (file_ptr) secptr1, SEEK_SET);
- bfd_bread (sname, (bfd_size_type) 8, dll);
+ if (fail
+ || bfd_seek (dll, secptr1, SEEK_SET) != 0
+ || bfd_read (sname, 8, dll) != 8)
+ goto notdll;
if (vaddr <= export_rva && vaddr + vsize > export_rva)
{
for (i = 0; i < nsections; i++)
{
bfd_vma secptr1 = secptr + 40 * i;
- bfd_vma vsize = pe_get32 (dll, secptr1 + 8);
- bfd_vma vaddr = pe_get32 (dll, secptr1 + 12);
- bfd_vma flags = pe_get32 (dll, secptr1 + 36);
+ bfd_vma vsize = pe_get32 (dll, secptr1 + 8, &fail);
+ bfd_vma vaddr = pe_get32 (dll, secptr1 + 12, &fail);
+ bfd_vma flags = pe_get32 (dll, secptr1 + 36, &fail);
char sec_name[9];
sec_name[8] = '\0';
- bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET);
- bfd_bread (sec_name, (bfd_size_type) 8, dll);
+ if (fail
+ || bfd_seek (dll, secptr1 + 0, SEEK_SET) != 0
+ || bfd_read (sec_name, 8, dll) != 8)
+ goto notdll;
if (strcmp(sec_name,".data") == 0)
{
if (pe_dll_extra_pe_debug)
printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n",
- __FUNCTION__, sec_name, (unsigned long) vaddr,
+ __func__, sec_name, (unsigned long) vaddr,
(unsigned long) (vaddr + vsize), (unsigned long) flags);
}
else if (strcmp(sec_name,".rdata") == 0)
if (pe_dll_extra_pe_debug)
printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n",
- __FUNCTION__, sec_name, (unsigned long) vaddr,
+ __func__, sec_name, (unsigned long) vaddr,
(unsigned long) (vaddr + vsize), (unsigned long) flags);
}
else if (strcmp (sec_name,".bss") == 0)
if (pe_dll_extra_pe_debug)
printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n",
- __FUNCTION__, sec_name, (unsigned long) vaddr,
+ __func__, sec_name, (unsigned long) vaddr,
(unsigned long) (vaddr + vsize), (unsigned long) flags);
}
}
expdata = xmalloc (export_size);
- bfd_seek (dll, (file_ptr) expptr, SEEK_SET);
- bfd_bread (expdata, (bfd_size_type) export_size, dll);
+ if (bfd_seek (dll, expptr, SEEK_SET) != 0
+ || bfd_read (expdata, export_size, dll) != export_size)
+ goto notdll;
erva = (char *) expdata - export_rva;
if (pe_def_file == 0)
{
if (pe_dll_extra_pe_debug)
printf ("%s is already loaded\n", dllname);
- return TRUE;
+ return true;
+ }
+
+ /* This is an optimized version of the insertion loop, which avoids lots of
+ calls to realloc and memmove from def_file_add_import. */
+ if ((from = def_file_add_import_from (pe_def_file, nexp,
+ erva + pe_as32 (erva + name_rvas),
+ dllname, 0, NULL, NULL)) >= 0)
+ {
+ for (i = 0; i < nexp; i++)
+ {
+ /* Pointer to the names vector. */
+ bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4);
+ def_file_import *imp;
+ /* Pointer to the function address vector. */
+ bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4);
+ /* is_data is true if the address is in the data, rdata or bss
+ segment. */
+ const int is_data =
+ (func_rva >= data_start && func_rva < data_end)
+ || (func_rva >= rdata_start && func_rva < rdata_end)
+ || (func_rva >= bss_start && func_rva < bss_end);
+
+ imp = def_file_add_import_at (pe_def_file, from + i, erva + name_rva,
+ dllname, i, NULL, NULL);
+ /* Mark symbol type. */
+ imp->data = is_data;
+
+ if (pe_dll_extra_pe_debug)
+ printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n",
+ __func__, dllname, erva + name_rva,
+ (unsigned long) func_rva, is_data ? "(data)" : "");
+ }
+
+ return true;
}
/* Iterate through the list of symbols. */
/* Skip unwanted symbols, which are
exported in buggy auto-import releases. */
- if (! CONST_STRNEQ (erva + name_rva, "__nm_"))
- {
- int is_dup = 0;
- /* is_data is true if the address is in the data, rdata or bss
+ if (! startswith (erva + name_rva, "__nm_"))
+ {
+ bool is_dup = false;
+ /* is_data is true if the address is in the data, rdata or bss
segment. */
- is_data =
+ is_data =
(func_rva >= data_start && func_rva < data_end)
|| (func_rva >= rdata_start && func_rva < rdata_end)
|| (func_rva >= bss_start && func_rva < bss_end);
imp = def_file_add_import (pe_def_file, erva + name_rva,
dllname, i, NULL, NULL, &is_dup);
- /* Mark symbol type. */
- if (!is_dup)
- imp->data = is_data;
+ /* Mark symbol type. */
+ if (!is_dup)
+ imp->data = is_data;
- if (pe_dll_extra_pe_debug)
+ if (pe_dll_extra_pe_debug)
printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n",
- __FUNCTION__, dllname, erva + name_rva,
+ __func__, dllname, erva + name_rva,
(unsigned long) func_rva, is_data ? "(data)" : "");
- }
+ }
}
- return TRUE;
+ return true;
}
void
if (pe_use_coff_long_section_names < 0)
return;
if (!bfd_coff_set_long_section_names (abfd, pe_use_coff_long_section_names))
- einfo (_("%XError: can't use long section names on this arch\n"));
+ einfo (_("%X%P: error: can't use long section names on this arch\n"));
}
/* These are the main functions, called from the emulation. The first
pe_output_file_set_long_section_names (abfd);
process_def_file_and_drectve (abfd, info);
- if (pe_def_file->num_exports == 0 && !info->shared)
- return;
+ if (pe_def_file->num_exports == 0
+ && (!bfd_link_pic (info) || pe_dll_exclude_all_symbols))
+ {
+ if (pe_dll_enable_reloc_section)
+ {
+ build_filler_bfd (false /* edata not needed. */);
+ pe_output_file_set_long_section_names (filler_bfd);
+ }
+ return;
+ }
- generate_edata (abfd, info);
- build_filler_bfd (1);
+ generate_edata ();
+ build_filler_bfd (true /* edata is needed. */);
pe_output_file_set_long_section_names (filler_bfd);
}
void
pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info)
{
- pe_dll_id_target (bfd_get_target (abfd));
- pe_output_file_set_long_section_names (abfd);
- image_base = pe_data (abfd)->pe_opthdr.ImageBase;
+ pe_exe_fill_sections (abfd, info);
- generate_reloc (abfd, info);
- if (reloc_sz > 0)
+ if (edata_s)
{
- bfd_set_section_size (filler_bfd, reloc_s, reloc_sz);
-
- /* Resize the sections. */
- lang_reset_memory_regions ();
- lang_size_sections (NULL, TRUE);
-
- /* Redo special stuff. */
- ldemul_after_allocation ();
-
- /* Do the assignments again. */
- lang_do_assignments (lang_final_phase_enum);
+ fill_edata (abfd, info);
+ edata_s->contents = edata_d;
}
- fill_edata (abfd, info);
-
- if (info->shared && !info->pie)
+ if (bfd_link_dll (info))
pe_data (abfd)->dll = 1;
-
- edata_s->contents = edata_d;
- reloc_s->contents = reloc_d;
}
void
image_base = pe_data (abfd)->pe_opthdr.ImageBase;
generate_reloc (abfd, info);
+
if (reloc_sz > 0)
{
- bfd_set_section_size (filler_bfd, reloc_s, reloc_sz);
+ bfd_set_section_size (reloc_s, reloc_sz);
/* Resize the sections. */
lang_reset_memory_regions ();
- lang_size_sections (NULL, TRUE);
+ lang_size_sections (NULL, true);
/* Redo special stuff. */
ldemul_after_allocation ();
/* Do the assignments again. */
lang_do_assignments (lang_final_phase_enum);
+
+ reloc_s->contents = reloc_d;
+ }
+ else if (reloc_s)
+ {
+ /* Do not emit an empty reloc section. */
+ bfd_set_section_flags (reloc_s, SEC_IN_MEMORY | SEC_EXCLUDE);
+ reloc_s->output_section = bfd_abs_section_ptr;
}
- reloc_s->contents = reloc_d;
}
-bfd_boolean
+bool
pe_bfd_is_dll (bfd *abfd)
{
return (bfd_get_format (abfd) == bfd_object
- && obj_pe (abfd)
- && pe_data (abfd)->dll);
+ && obj_pe (abfd)
+ && pe_data (abfd)->dll);
}
projects / thirdparty / binutils-gdb.git / blobdiff