/* Support for the generic parts of PE/PEI; the common executable parts.
- Copyright (C) 1995-2018 Free Software Foundation, Inc.
+ Copyright (C) 1995-2020 Free Software Foundation, Inc.
Written by Cygnus Solutions.
This file is part of BFD, the Binary File Descriptor library.
"Peering Inside the PE: A Tour of the Win32 Portable Executable
File Format", MSJ 1994, Volume 9.
+ The PE/PEI format is also used by .NET. ECMA-335 describes this:
+
+ "Standard ECMA-335 Common Language Infrastructure (CLI)", 6th Edition, June 2012.
+
+ This is also available at
+ https://www.ecma-international.org/publications/files/ECMA-ST/ECMA-335.pdf.
+
The *sole* difference between the pe format and the pei format is that the
latter has an MSDOS 2.0 .exe header on the front that prints the message
"This app must be run under Windows." (or some such).
int unused_section_number = 0;
asection *sec;
flagword flags;
+ size_t name_len;
+ char *sec_name;
for (sec = abfd->sections; sec; sec = sec->next)
if (unused_section_number <= sec->target_index)
unused_section_number = sec->target_index + 1;
- if (name == namebuf)
+ name_len = strlen (name) + 1;
+ sec_name = bfd_alloc (abfd, name_len);
+ if (sec_name == NULL)
{
- name = (const char *) bfd_alloc (abfd, strlen (namebuf) + 1);
- if (name == NULL)
- {
- _bfd_error_handler (_("%pB: out of memory creating name for empty section"),
- abfd);
- return;
- }
- strcpy ((char *) name, namebuf);
+ _bfd_error_handler (_("%pB: out of memory creating name "
+ "for empty section"), abfd);
+ return;
}
+ memcpy (sec_name, name, name_len);
flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_DATA | SEC_LOAD;
- sec = bfd_make_section_anyway_with_flags (abfd, name, flags);
+ sec = bfd_make_section_anyway_with_flags (abfd, sec_name, flags);
if (sec == NULL)
{
_bfd_error_handler (_("%pB: unable to create fake empty section"),
a->NumberOfRvaAndSizes = H_GET_32 (abfd, src->NumberOfRvaAndSizes);
{
- int idx;
+ unsigned idx;
/* PR 17512: Corrupt PE binaries can cause seg-faults. */
if (a->NumberOfRvaAndSizes > IMAGE_NUMBEROF_DIRECTORY_ENTRIES)
{
/* xgettext:c-format */
_bfd_error_handler
- (_("%pB: aout header specifies an invalid number of data-directory entries: %ld"),
- abfd, a->NumberOfRvaAndSizes);
+ (_("%pB: aout header specifies an invalid number of"
+ " data-directory entries: %u"), abfd, a->NumberOfRvaAndSizes);
bfd_set_error (bfd_error_bad_value);
/* Paranoia: If the number is corrupt, then assume that the
{
int rounded = FA (sec->size);
+ if (rounded == 0)
+ continue;
+
/* The first non-zero section filepos is the header size.
Sections without contents will have a filepos of 0. */
if (hsize == 0)
/* This next collection of data are mostly just characters. It
appears to be constant within the headers put on NT exes. */
- filehdr_in->pe.dos_message[0] = 0x0eba1f0e;
- filehdr_in->pe.dos_message[1] = 0xcd09b400;
- filehdr_in->pe.dos_message[2] = 0x4c01b821;
- filehdr_in->pe.dos_message[3] = 0x685421cd;
- filehdr_in->pe.dos_message[4] = 0x70207369;
- filehdr_in->pe.dos_message[5] = 0x72676f72;
- filehdr_in->pe.dos_message[6] = 0x63206d61;
- filehdr_in->pe.dos_message[7] = 0x6f6e6e61;
- filehdr_in->pe.dos_message[8] = 0x65622074;
- filehdr_in->pe.dos_message[9] = 0x6e757220;
- filehdr_in->pe.dos_message[10] = 0x206e6920;
- filehdr_in->pe.dos_message[11] = 0x20534f44;
- filehdr_in->pe.dos_message[12] = 0x65646f6d;
- filehdr_in->pe.dos_message[13] = 0x0a0d0d2e;
- filehdr_in->pe.dos_message[14] = 0x24;
- filehdr_in->pe.dos_message[15] = 0x0;
+ memcpy (filehdr_in->pe.dos_message, pe_data (abfd)->dos_message,
+ sizeof (filehdr_in->pe.dos_message));
+
filehdr_in->pe.nt_signature = IMAGE_NT_SIGNATURE;
H_PUT_16 (abfd, filehdr_in->f_magic, filehdr_out->f_magic);
H_PUT_16 (abfd, filehdr_in->f_nscns, filehdr_out->f_nscns);
- /* Only use a real timestamp if the option was chosen. */
- if ((pe_data (abfd)->insert_timestamp))
+ /* Use a real timestamp by default, unless the no-insert-timestamp
+ option was chosen. */
+ if ((pe_data (abfd)->timestamp) == -1)
H_PUT_32 (abfd, time (0), filehdr_out->f_timdat);
else
- H_PUT_32 (abfd, 0, filehdr_out->f_timdat);
+ H_PUT_32 (abfd, pe_data (abfd)->timestamp, filehdr_out->f_timdat);
PUT_FILEHDR_SYMPTR (abfd, filehdr_in->f_symptr,
filehdr_out->f_symptr);
typedef struct
{
- const char * section_name;
+ char section_name[SCNNMLEN];
unsigned long must_have;
}
pe_required_section_flags;
{ ".text" , IMAGE_SCN_MEM_READ | IMAGE_SCN_CNT_CODE | IMAGE_SCN_MEM_EXECUTE },
{ ".tls", IMAGE_SCN_MEM_READ | IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_WRITE },
{ ".xdata", IMAGE_SCN_MEM_READ | IMAGE_SCN_CNT_INITIALIZED_DATA },
- { NULL, 0}
};
pe_required_section_flags * p;
by ld --enable-auto-import (if auto-import is actually needed),
by ld --omagic, or by obcopy --writable-text. */
- for (p = known_sections; p->section_name; p++)
- if (strcmp (scnhdr_int->s_name, p->section_name) == 0)
+ for (p = known_sections;
+ p < known_sections + ARRAY_SIZE (known_sections);
+ p++)
+ if (memcmp (scnhdr_int->s_name, p->section_name, SCNNMLEN) == 0)
{
- if (strcmp (scnhdr_int->s_name, ".text")
+ if (memcmp (scnhdr_int->s_name, ".text", sizeof ".text")
|| (bfd_get_file_flags (abfd) & WP_TEXT))
scnhdr_int->s_flags &= ~IMAGE_SCN_MEM_WRITE;
scnhdr_int->s_flags |= p->must_have;
if (coff_data (abfd)->link_info
&& ! bfd_link_relocatable (coff_data (abfd)->link_info)
&& ! bfd_link_pic (coff_data (abfd)->link_info)
- && strcmp (scnhdr_int->s_name, ".text") == 0)
+ && memcmp (scnhdr_int->s_name, ".text", sizeof ".text") == 0)
{
/* By inference from looking at MS output, the 32 bit field
which is the combination of the number_of_relocs and
if (bfd_seek (abfd, where, SEEK_SET) != 0)
return 0;
- buffer = xmalloc (size);
+ buffer = bfd_malloc (size);
+ if (buffer == NULL)
+ return 0;
+
cvinfo70 = (CV_INFO_PDB70 *) buffer;
H_PUT_32 (abfd, CVINFO_PDB70_CVSIGNATURE, cvinfo70->CvSignature);
if (!bfd_malloc_and_get_section (abfd, rel_section, &data))
{
- if (data != NULL)
- free (data);
+ free (data);
return FALSE;
}
if (offset >= rel_section->size || offset + 8 > rel_section->size)
{
- if (data != NULL)
- free (data);
+ free (data);
return FALSE;
}
/* xgettext:c-format */
_("\tcode-base %08lx toc (loadable/actual) %08lx/%08lx\n"),
start_address, loadable_toc_address, toc_address);
- if (data != NULL)
- free (data);
+ free (data);
}
else
{
/* Read the whole section. Some of the fields might be before dataoff. */
if (!bfd_malloc_and_get_section (abfd, section, &data))
{
- if (data != NULL)
- free (data);
+ free (data);
return FALSE;
}
if (hint_addr == 0)
hint_addr = first_thunk;
- if (hint_addr != 0)
+ if (hint_addr != 0 && hint_addr - adj < datasize)
{
bfd_byte *ft_data;
asection *ft_section;
dataoff = addr - section->vma;
datasize = extra->DataDirectory[PE_EXPORT_TABLE].Size;
- if (datasize > section->size - dataoff)
+ if (dataoff > section->size
+ || datasize > section->size - dataoff)
{
fprintf (file,
_("\nThere is an export table in %s, but it does not fit into that section\n"),
}
/* PR 17512: Handle corrupt PE binaries. */
- if (datasize < 36)
+ if (datasize < 40)
{
fprintf (file,
/* xgettext:c-format */
edt.base);
/* PR 17512: Handle corrupt PE binaries. */
- if (edt.eat_addr + (edt.num_functions * 4) - adj >= datasize
+ /* PR 17512 file: 140-165018-0.004. */
+ if (edt.eat_addr - adj >= datasize
/* PR 17512: file: 092b1829 */
- || (edt.num_functions * 4) < edt.num_functions
- /* PR 17512 file: 140-165018-0.004. */
- || data + edt.eat_addr - adj < data)
+ || (edt.num_functions + 1) * 4 < edt.num_functions
+ || edt.eat_addr - adj + (edt.num_functions + 1) * 4 > datasize)
fprintf (file, _("\tInvalid Export Address Table rva (0x%lx) or entry count (0x%lx)\n"),
(long) edt.eat_addr,
(long) edt.num_functions);
if ((stop % onaline) != 0)
fprintf (file,
/* xgettext:c-format */
- _("Warning, .pdata section size (%ld) is not a multiple of %d\n"),
+ _("warning, .pdata section size (%ld) is not a multiple of %d\n"),
(long) stop, onaline);
fprintf (file,
if (! bfd_malloc_and_get_section (abfd, section, &data))
{
- if (data != NULL)
- free (data);
+ free (data);
return FALSE;
}
if ((stop % onaline) != 0)
fprintf (file,
/* xgettext:c-format */
- _("Warning, .pdata section size (%ld) is not a multiple of %d\n"),
+ _("warning, .pdata section size (%ld) is not a multiple of %d\n"),
(long) stop, onaline);
fprintf (file,
if (! bfd_malloc_and_get_section (abfd, section, &data))
{
- if (data != NULL)
- free (data);
+ free (data);
return FALSE;
}
if (! bfd_malloc_and_get_section (abfd, section, &data))
{
- if (data != NULL)
- free (data);
+ free (data);
return FALSE;
}
if (! bfd_malloc_and_get_section (abfd, section, & data))
{
- if (data != NULL)
- free (data);
+ free (data);
return FALSE;
}
return TRUE;
}
-#define IMAGE_NUMBEROF_DEBUG_TYPES 12
+#define IMAGE_NUMBEROF_DEBUG_TYPES 17
static char * debug_type_names[IMAGE_NUMBEROF_DEBUG_TYPES] =
{
"Borland",
"Reserved",
"CLSID",
+ "Feature",
+ "CoffGrp",
+ "ILTCG",
+ "MPX",
+ "Repro",
};
static bfd_boolean
asection *section;
bfd_byte *data = 0;
bfd_size_type dataoff;
- unsigned int i;
+ unsigned int i, j;
bfd_vma addr = extra->DataDirectory[PE_DEBUG_DATA].VirtualAddress;
bfd_size_type size = extra->DataDirectory[PE_DEBUG_DATA].Size;
/* Read the whole section. */
if (!bfd_malloc_and_get_section (abfd, section, &data))
{
- if (data != NULL)
- free (data);
+ free (data);
return FALSE;
}
idd.SizeOfData, cvinfo))
continue;
- for (i = 0; i < cvinfo->SignatureLength; i++)
- sprintf (&signature[i*2], "%02x", cvinfo->Signature[i] & 0xff);
+ for (j = 0; j < cvinfo->SignatureLength; j++)
+ sprintf (&signature[j*2], "%02x", cvinfo->Signature[j] & 0xff);
/* xgettext:c-format */
fprintf (file, _("(format %c%c%c%c signature %s age %ld)\n"),
}
}
+ free(data);
+
if (size % sizeof (struct external_IMAGE_DEBUG_DIRECTORY) != 0)
fprintf (file,
_("The debug directory size is not a multiple of the debug directory entry size\n"));
return TRUE;
}
+static bfd_boolean
+pe_is_repro (bfd * abfd)
+{
+ pe_data_type *pe = pe_data (abfd);
+ struct internal_extra_pe_aouthdr *extra = &pe->pe_opthdr;
+ asection *section;
+ bfd_byte *data = 0;
+ bfd_size_type dataoff;
+ unsigned int i;
+ bfd_boolean res = FALSE;
+
+ bfd_vma addr = extra->DataDirectory[PE_DEBUG_DATA].VirtualAddress;
+ bfd_size_type size = extra->DataDirectory[PE_DEBUG_DATA].Size;
+
+ if (size == 0)
+ return FALSE;
+
+ addr += extra->ImageBase;
+ for (section = abfd->sections; section != NULL; section = section->next)
+ {
+ if ((addr >= section->vma) && (addr < (section->vma + section->size)))
+ break;
+ }
+
+ if ((section == NULL)
+ || (!(section->flags & SEC_HAS_CONTENTS))
+ || (section->size < size))
+ {
+ return FALSE;
+ }
+
+ dataoff = addr - section->vma;
+
+ if (size > (section->size - dataoff))
+ {
+ return FALSE;
+ }
+
+ if (!bfd_malloc_and_get_section (abfd, section, &data))
+ {
+ free (data);
+ return FALSE;
+ }
+
+ for (i = 0; i < size / sizeof (struct external_IMAGE_DEBUG_DIRECTORY); i++)
+ {
+ struct external_IMAGE_DEBUG_DIRECTORY *ext
+ = &((struct external_IMAGE_DEBUG_DIRECTORY *)(data + dataoff))[i];
+ struct internal_IMAGE_DEBUG_DIRECTORY idd;
+
+ _bfd_XXi_swap_debugdir_in (abfd, ext, &idd);
+
+ if (idd.Type == PE_IMAGE_DEBUG_TYPE_REPRO)
+ {
+ res = TRUE;
+ break;
+ }
+ }
+
+ free(data);
+
+ return res;
+}
+
/* Print out the program headers. */
bfd_boolean
PF (IMAGE_FILE_BYTES_REVERSED_HI, "big endian");
#undef PF
- /* ctime implies '\n'. */
- {
- time_t t = pe->coff.timestamp;
- fprintf (file, "\nTime/Date\t\t%s", ctime (&t));
- }
+ /*
+ If a PE_IMAGE_DEBUG_TYPE_REPRO entry is present in the debug directory, the
+ timestamp is to be interpreted as the hash of a reproducible build.
+ */
+ if (pe_is_repro (abfd))
+ {
+ fprintf (file, "\nTime/Date\t\t%08lx", pe->coff.timestamp);
+ fprintf (file, "\t(This is a reproducible build file hash, not a timestamp)\n");
+ }
+ else
+ {
+ /* ctime implies '\n'. */
+ time_t t = pe->coff.timestamp;
+ fprintf (file, "\nTime/Date\t\t%s", ctime (&t));
+ }
#ifndef IMAGE_NT_OPTIONAL_HDR_MAGIC
# define IMAGE_NT_OPTIONAL_HDR_MAGIC 0x10b
fprintf (file, "\t(%s)",name);
fprintf (file, "\nMajorLinkerVersion\t%d\n", i->MajorLinkerVersion);
fprintf (file, "MinorLinkerVersion\t%d\n", i->MinorLinkerVersion);
- fprintf (file, "SizeOfCode\t\t%08lx\n", (unsigned long) i->SizeOfCode);
- fprintf (file, "SizeOfInitializedData\t%08lx\n",
- (unsigned long) i->SizeOfInitializedData);
- fprintf (file, "SizeOfUninitializedData\t%08lx\n",
- (unsigned long) i->SizeOfUninitializedData);
- fprintf (file, "AddressOfEntryPoint\t");
+ fprintf (file, "SizeOfCode\t\t");
+ bfd_fprintf_vma (abfd, file, i->SizeOfCode);
+ fprintf (file, "\nSizeOfInitializedData\t");
+ bfd_fprintf_vma (abfd, file, i->SizeOfInitializedData);
+ fprintf (file, "\nSizeOfUninitializedData\t");
+ bfd_fprintf_vma (abfd, file, i->SizeOfUninitializedData);
+ fprintf (file, "\nAddressOfEntryPoint\t");
bfd_fprintf_vma (abfd, file, i->AddressOfEntryPoint);
fprintf (file, "\nBaseOfCode\t\t");
bfd_fprintf_vma (abfd, file, i->BaseOfCode);
fprintf (file, "\nImageBase\t\t");
bfd_fprintf_vma (abfd, file, i->ImageBase);
- fprintf (file, "\nSectionAlignment\t");
- bfd_fprintf_vma (abfd, file, i->SectionAlignment);
- fprintf (file, "\nFileAlignment\t\t");
- bfd_fprintf_vma (abfd, file, i->FileAlignment);
- fprintf (file, "\nMajorOSystemVersion\t%d\n", i->MajorOperatingSystemVersion);
+ fprintf (file, "\nSectionAlignment\t%08x\n", i->SectionAlignment);
+ fprintf (file, "FileAlignment\t\t%08x\n", i->FileAlignment);
+ fprintf (file, "MajorOSystemVersion\t%d\n", i->MajorOperatingSystemVersion);
fprintf (file, "MinorOSystemVersion\t%d\n", i->MinorOperatingSystemVersion);
fprintf (file, "MajorImageVersion\t%d\n", i->MajorImageVersion);
fprintf (file, "MinorImageVersion\t%d\n", i->MinorImageVersion);
fprintf (file, "MajorSubsystemVersion\t%d\n", i->MajorSubsystemVersion);
fprintf (file, "MinorSubsystemVersion\t%d\n", i->MinorSubsystemVersion);
- fprintf (file, "Win32Version\t\t%08lx\n", (unsigned long) i->Reserved1);
- fprintf (file, "SizeOfImage\t\t%08lx\n", (unsigned long) i->SizeOfImage);
- fprintf (file, "SizeOfHeaders\t\t%08lx\n", (unsigned long) i->SizeOfHeaders);
- fprintf (file, "CheckSum\t\t%08lx\n", (unsigned long) i->CheckSum);
+ fprintf (file, "Win32Version\t\t%08x\n", i->Reserved1);
+ fprintf (file, "SizeOfImage\t\t%08x\n", i->SizeOfImage);
+ fprintf (file, "SizeOfHeaders\t\t%08x\n", i->SizeOfHeaders);
+ fprintf (file, "CheckSum\t\t%08x\n", i->CheckSum);
switch (i->Subsystem)
{
&& ! (pe_data (ibfd)->real_flags & IMAGE_FILE_RELOCS_STRIPPED))
pe_data (obfd)->dont_strip_reloc = 1;
+ memcpy (ope->dos_message, ipe->dos_message, sizeof (ope->dos_message));
+
/* The file offsets contained in the debug directory need rewriting. */
if (ope->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size != 0)
{
(struct external_IMAGE_DEBUG_DIRECTORY *)(data + (addr - section->vma));
/* PR 17512: file: 0f15796a. */
- if (ope->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size + (addr - section->vma)
- > bfd_get_section_size (section))
+ if ((unsigned long) ope->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
+ > section->size - (addr - section->vma))
{
/* xgettext:c-format */
_bfd_error_handler
"exceeds space left in section (%" PRIx64 ")"),
obfd, ope->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size,
(uint64_t) (section->size - (addr - section->vma)));
+ free (data);
return FALSE;
}
if (!bfd_set_section_contents (obfd, section, data, 0, section->size))
{
- _bfd_error_handler (_("Failed to update file offsets in debug directory"));
+ _bfd_error_handler (_("failed to update file offsets in debug directory"));
+ free (data);
return FALSE;
}
+ free (data);
}
else if (section)
{
- _bfd_error_handler (_("%pB: Failed to read debug data section"), obfd);
+ _bfd_error_handler (_("%pB: failed to read debug data section"), obfd);
return FALSE;
}
}
{
if (coff_section_data (obfd, osec) == NULL)
{
- bfd_size_type amt = sizeof (struct coff_section_tdata);
+ size_t amt = sizeof (struct coff_section_tdata);
osec->used_by_bfd = bfd_zalloc (obfd, amt);
if (osec->used_by_bfd == NULL)
return FALSE;
if (pei_section_data (obfd, osec) == NULL)
{
- bfd_size_type amt = sizeof (struct pei_section_tdata);
+ size_t amt = sizeof (struct pei_section_tdata);
coff_section_data (obfd, osec)->tdata = bfd_zalloc (obfd, amt);
if (coff_section_data (obfd, osec)->tdata == NULL)
return FALSE;
if (adir->characteristics != bdir->characteristics)
{
- _bfd_error_handler (_(".rsrc merge failure: dirs with differing characteristics\n"));
+ _bfd_error_handler (_(".rsrc merge failure: dirs with differing characteristics"));
bfd_set_error (bfd_error_file_truncated);
return;
}
if (adir->major != bdir->major || adir->minor != bdir->minor)
{
- _bfd_error_handler (_(".rsrc merge failure: differing directory versions\n"));
+ _bfd_error_handler (_(".rsrc merge failure: differing directory versions"));
bfd_set_error (bfd_error_file_truncated);
return;
}
projects / deliverable / binutils-gdb.git / blobdiff