static asection *
pex64_get_section_by_rva (bfd *abfd, bfd_vma addr, const char *sec_name)
{
asection *section = bfd_get_section_by_name (abfd, sec_name);
bfd_vma vsize;
bfd_size_type datasize = 0;
if (section == NULL
|| coff_section_data (abfd, section) == NULL
|| pei_section_data (abfd, section) == NULL)
return NULL;
vsize = section->vma - pe_data (abfd)->pe_opthdr.ImageBase;
datasize = section->size;
if (!datasize || vsize > addr || (vsize + datasize) < addr)
return NULL;
return section;
}
static bfd_boolean
pex64_bfd_print_pdata_section (bfd *abfd, void *vfile, asection *pdata_section)
{
FILE *file = (FILE *) vfile;
bfd_byte *pdata = NULL;
bfd_byte *xdata = NULL;
asection *xdata_section = NULL;
bfd_vma xdata_base;
bfd_size_type i;
bfd_size_type datasize;
bfd_size_type stop;
bfd_vma prev_beginaddress = (bfd_vma) -1;
bfd_vma prev_unwinddata_rva = (bfd_vma) -1;
bfd_vma imagebase;
int onaline = PDATA_ROW_SIZE;
int seen_error = 0;
bfd_vma *xdata_arr = NULL;
int xdata_arr_cnt;
bfd_boolean virt_size_is_zero = FALSE;
/* Sanity checks. */
if (pdata_section == NULL
|| coff_section_data (abfd, pdata_section) == NULL
|| pei_section_data (abfd, pdata_section) == NULL)
return TRUE;
stop = pei_section_data (abfd, pdata_section)->virt_size;
if ((stop % onaline) != 0)
fprintf (file,
_("Warning: %s section size (%ld) is not a multiple of %d\n"),
pdata_section->name, (long) stop, onaline);
datasize = pdata_section->size;
if (datasize == 0)
{
if (stop)
fprintf (file, _("Warning: %s section size is zero\n"),
pdata_section->name);
return TRUE;
}
/* virt_size might be zero for objects. */
if (stop == 0 && strcmp (abfd->xvec->name, "pe-x86-64") == 0)
{
stop = (datasize / onaline) * onaline;
virt_size_is_zero = TRUE;
}
else if (datasize < stop)
{
fprintf (file,
_("Warning: %s section size (%ld) is smaller than virtual size (%ld)\n"),
pdata_section->name, (unsigned long) datasize,
(unsigned long) stop);
/* Be sure not to read passed datasize. */
stop = datasize / onaline;
}
/* Display functions table. */
fprintf (file,
_("\nThe Function Table (interpreted %s section contents)\n"),
pdata_section->name);
fprintf (file, _("vma:\t\t\tBeginAddress\t EndAddress\t UnwindData\n"));
if (!bfd_malloc_and_get_section (abfd, pdata_section, &pdata))
goto done;
/* Table of xdata entries. */
xdata_arr = (bfd_vma *) xmalloc (sizeof (bfd_vma) * ((stop / onaline) + 1));
xdata_arr_cnt = 0;
if (strcmp (abfd->xvec->name, "pei-x86-64") == 0)
imagebase = pe_data (abfd)->pe_opthdr.ImageBase;
else
imagebase = 0;
for (i = 0; i < stop; i += onaline)
{
struct pex64_runtime_function rf;
if (i + PDATA_ROW_SIZE > stop)
break;
pex64_get_runtime_function (abfd, &rf, &pdata[i]);
if (rf.rva_BeginAddress == 0 && rf.rva_EndAddress == 0
&& rf.rva_UnwindData == 0)
/* We are probably into the padding of the section now. */
break;
fputc (' ', file);
fprintf_vma (file, i + pdata_section->vma);
fprintf (file, ":\t");
fprintf_vma (file, imagebase + rf.rva_BeginAddress);
fprintf (file, " ");
fprintf_vma (file, imagebase + rf.rva_EndAddress);
fprintf (file, " ");
fprintf_vma (file, imagebase + rf.rva_UnwindData);
fprintf (file, "\n");
if (i != 0 && rf.rva_BeginAddress <= prev_beginaddress)
{
seen_error = 1;
fprintf (file, " has %s begin address as predecessor\n",
(rf.rva_BeginAddress < prev_beginaddress ? "smaller" : "same"));
}
prev_beginaddress = rf.rva_BeginAddress;
/* Now we check for negative addresses. */
if ((prev_beginaddress & 0x80000000) != 0)
{
seen_error = 1;
fprintf (file, " has negative begin address\n");
}
if ((rf.rva_EndAddress & 0x80000000) != 0)
{
seen_error = 1;
fprintf (file, " has negative end address\n");
}
if ((rf.rva_UnwindData & 0x80000000) != 0)
{
seen_error = 1;
fprintf (file, " has negative unwind address\n");
}
else if ((rf.rva_UnwindData && !PEX64_IS_RUNTIME_FUNCTION_CHAINED (&rf))
|| virt_size_is_zero)
xdata_arr[xdata_arr_cnt++] = rf.rva_UnwindData;
}
if (seen_error)
goto done;
/* Add end of list marker. */
xdata_arr[xdata_arr_cnt++] = ~((bfd_vma) 0);
/* Sort start RVAs of xdata. */
if (xdata_arr_cnt > 1)
qsort (xdata_arr, (size_t) xdata_arr_cnt, sizeof (bfd_vma),
sort_xdata_arr);
/* Find the section containing the unwind data (.xdata). */
xdata_base = xdata_arr[0];
/* For sections with long names, first look for the same
section name, replacing .pdata by .xdata prefix. */
if (strcmp (pdata_section->name, ".pdata") != 0)
{
size_t len = strlen (pdata_section->name);
char *xdata_name = alloca (len + 1);
xdata_name = memcpy (xdata_name, pdata_section->name, len + 1);
/* Transform .pdata prefix into .xdata prefix. */
if (len > 1)
xdata_name [1] = 'x';
xdata_section = pex64_get_section_by_rva (abfd, xdata_base,
xdata_name);
}
/* Second, try the .xdata section itself. */
if (!xdata_section)
xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".xdata");
/* Otherwise, if xdata_base is non zero, search also inside
other standard sections. */
if (!xdata_section && xdata_base)
xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".rdata");
if (!xdata_section && xdata_base)
xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".data");
if (!xdata_section && xdata_base)
xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".pdata");
if (!xdata_section && xdata_base)
xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".text");
/* Transfer xdata section into xdata array. */
if (!xdata_section
|| !bfd_malloc_and_get_section (abfd, xdata_section, &xdata))
goto done;
/* Avoid "also used "... ouput for single unwind info
in object file. */
prev_unwinddata_rva = (bfd_vma) -1;
/* Do dump of pdata related xdata. */
for (i = 0; i < stop; i += onaline)
{
struct pex64_runtime_function rf;
if (i + PDATA_ROW_SIZE > stop)
break;
pex64_get_runtime_function (abfd, &rf, &pdata[i]);
if (rf.rva_BeginAddress == 0 && rf.rva_EndAddress == 0
&& rf.rva_UnwindData == 0)
/* We are probably into the padding of the section now. */
break;
if (i == 0)
fprintf (file, _("\nDump of %s\n"), xdata_section->name);
fputc (' ', file);
fprintf_vma (file, rf.rva_UnwindData + imagebase);
if (prev_unwinddata_rva == rf.rva_UnwindData)
{
/* Do not dump again the xdata for the same entry. */
fprintf (file, " also used for function at ");
fprintf_vma (file, rf.rva_BeginAddress + imagebase);
fputc ('\n', file);
continue;
}
else
prev_unwinddata_rva = rf.rva_UnwindData;
fprintf (file, " (rva: %08x): ",
(unsigned int) rf.rva_UnwindData);
fprintf_vma (file, rf.rva_BeginAddress + imagebase);
fprintf (file, " - ");
fprintf_vma (file, rf.rva_EndAddress + imagebase);
fputc ('\n', file);
if (rf.rva_UnwindData != 0 || virt_size_is_zero)
{
if (PEX64_IS_RUNTIME_FUNCTION_CHAINED (&rf))
{
bfd_vma altent = PEX64_GET_UNWINDDATA_UNIFIED_RVA (&rf);
bfd_vma pdata_vma = bfd_get_section_vma (abfd, pdata_section);
struct pex64_runtime_function arf;
fprintf (file, "\t shares information with ");
altent += imagebase;
if (altent >= pdata_vma
&& (altent + PDATA_ROW_SIZE <= pdata_vma
+ pei_section_data (abfd, pdata_section)->virt_size))
{
pex64_get_runtime_function
(abfd, &arf, &pdata[altent - pdata_vma]);
fprintf (file, "pdata element at 0x");
fprintf_vma (file, arf.rva_UnwindData);
}
else
fprintf (file, "unknown pdata element");
fprintf (file, ".\n");
}
else
{
bfd_vma *p;
/* Search for the current entry in the sorted array. */
p = (bfd_vma *)
bsearch (&rf.rva_UnwindData, xdata_arr,
(size_t) xdata_arr_cnt, sizeof (bfd_vma),
sort_xdata_arr);
/* Advance to the next pointer into the xdata section. We may
have shared xdata entries, which will result in a string of
identical pointers in the array; advance past all of them. */
while (p[0] <= rf.rva_UnwindData)
++p;
if (p[0] == ~((bfd_vma) 0))
p = NULL;
pex64_dump_xdata (file, abfd, xdata_section, xdata, p, &rf);
}
}
}
done:
free (pdata);
free (xdata_arr);
free (xdata);
return TRUE;
}
static bfd_boolean
pex64_bfd_print_pdata (bfd *abfd, void *vfile)
{
FILE *file = (FILE *) vfile;
bfd_byte *data = NULL;
asection *section = bfd_get_section_by_name (abfd, ".pdata");
bfd_size_type datasize = 0;
bfd_size_type i;
bfd_size_type start, stop;
int onaline = PDATA_ROW_SIZE;
if (section == NULL
|| coff_section_data (abfd, section) == NULL
|| pei_section_data (abfd, section) == NULL)
return TRUE;
stop = pei_section_data (abfd, section)->virt_size;
if ((stop % onaline) != 0)
fprintf (file,
_("warning: .pdata section size (%ld) is not a multiple of %d\n"),
(long) stop, onaline);
fprintf (file,
_("\nThe Function Table (interpreted .pdata section contents)\n"));
fprintf (file, _("vma:\t\t\tBeginAddress\t EndAddress\t UnwindData\n"));
datasize = section->size;
if (datasize == 0)
return TRUE;
if (!bfd_malloc_and_get_section (abfd, section, &data))
{
if (data != NULL)
free (data);
return FALSE;
}
start = 0;
for (i = start; i < stop; i += onaline)
{
struct pex64_runtime_function rf;
if (i + PDATA_ROW_SIZE > stop)
break;
pex64_get_runtime_function (abfd, &rf, &data[i]);
if (rf.rva_BeginAddress == 0 && rf.rva_EndAddress == 0
&& rf.rva_UnwindData == 0)
/* We are probably into the padding of the section now. */
break;
fputc (' ', file);
fprintf_vma (file, i + section->vma);
fprintf (file, ":\t");
rf.rva_BeginAddress += pe_data (abfd)->pe_opthdr.ImageBase;
fprintf_vma (file, rf.rva_BeginAddress);
fputc (' ', file);
rf.rva_EndAddress += pe_data (abfd)->pe_opthdr.ImageBase;
fprintf_vma (file, rf.rva_EndAddress);
fputc (' ', file);
fprintf_vma (file, rf.rva_UnwindData);
fprintf (file, "\n");
if (rf.rva_UnwindData != 0)
{
if (rf.isChained)
{
fprintf (file, "\t shares information with pdata element at 0x");
fprintf_vma (file, rf.rva_UnwindData + pe_data (abfd)->pe_opthdr.ImageBase);
fprintf (file, ".\n");
}
else
pex64_dump_xdata (file, abfd, rf.rva_UnwindData, rf.rva_BeginAddress);
}
}
free (data);
return TRUE;
}
static bfd_boolean
pex64_bfd_print_pdata (bfd *abfd, void *vfile)
{
FILE *file = (FILE *) vfile;
bfd_byte *pdata = NULL;
bfd_byte *xdata = NULL;
asection *pdata_section = bfd_get_section_by_name (abfd, ".pdata");
asection *xdata_section;
bfd_vma xdata_base;
bfd_size_type i;
bfd_size_type stop;
bfd_vma prev_beginaddress = 0;
bfd_vma prev_unwinddata_rva = 0;
bfd_vma imagebase;
int onaline = PDATA_ROW_SIZE;
int seen_error = 0;
bfd_vma *xdata_arr = NULL;
int xdata_arr_cnt;
/* Sanity checks. */
if (pdata_section == NULL
|| coff_section_data (abfd, pdata_section) == NULL
|| pei_section_data (abfd, pdata_section) == NULL)
return TRUE;
stop = pei_section_data (abfd, pdata_section)->virt_size;
/* PR 17512: file: 005-181405-0.004. */
if (stop == 0 || pdata_section->size == 0)
{
fprintf (file, _("No unwind data in .pdata section\n"));
return TRUE;
}
if ((stop % onaline) != 0)
fprintf (file,
_("warning: .pdata section size (%ld) is not a multiple of %d\n"),
(long) stop, onaline);
/* Display functions table. */
fprintf (file,
_("\nThe Function Table (interpreted .pdata section contents)\n"));
fprintf (file, _("vma:\t\t\tBeginAddress\t EndAddress\t UnwindData\n"));
if (!bfd_malloc_and_get_section (abfd, pdata_section, &pdata))
goto done;
/* Table of xdata entries. */
xdata_arr = (bfd_vma *) xmalloc (sizeof (bfd_vma) * ((stop / onaline) + 1));
xdata_arr_cnt = 0;
imagebase = pe_data (abfd)->pe_opthdr.ImageBase;
for (i = 0; i < stop; i += onaline)
{
struct pex64_runtime_function rf;
if (i + PDATA_ROW_SIZE > stop)
break;
pex64_get_runtime_function (abfd, &rf, &pdata[i]);
if (rf.rva_BeginAddress == 0 && rf.rva_EndAddress == 0
&& rf.rva_UnwindData == 0)
/* We are probably into the padding of the section now. */
break;
fputc (' ', file);
fprintf_vma (file, i + pdata_section->vma);
fprintf (file, ":\t");
fprintf_vma (file, imagebase + rf.rva_BeginAddress);
fprintf (file, " ");
fprintf_vma (file, imagebase + rf.rva_EndAddress);
fprintf (file, " ");
fprintf_vma (file, imagebase + rf.rva_UnwindData);
fprintf (file, "\n");
if (i != 0 && rf.rva_BeginAddress <= prev_beginaddress)
{
seen_error = 1;
fprintf (file, " has %s begin address as predecessor\n",
(rf.rva_BeginAddress < prev_beginaddress ? "smaller" : "same"));
}
prev_beginaddress = rf.rva_BeginAddress;
/* Now we check for negative addresses. */
if ((prev_beginaddress & 0x80000000) != 0)
{
seen_error = 1;
fprintf (file, " has negative begin address\n");
}
if ((rf.rva_EndAddress & 0x80000000) != 0)
{
seen_error = 1;
fprintf (file, " has negative end address\n");
}
if ((rf.rva_UnwindData & 0x80000000) != 0)
{
seen_error = 1;
fprintf (file, " has negative unwind address\n");
}
if (rf.rva_UnwindData && !PEX64_IS_RUNTIME_FUNCTION_CHAINED (&rf))
xdata_arr[xdata_arr_cnt++] = rf.rva_UnwindData;
}
if (seen_error)
goto done;
/* Add end of list marker. */
xdata_arr[xdata_arr_cnt++] = ~((bfd_vma) 0);
/* Sort start RVAs of xdata. */
if (xdata_arr_cnt > 1)
qsort (xdata_arr, (size_t) xdata_arr_cnt, sizeof (bfd_vma),
sort_xdata_arr);
/* Find the section containing the unwind data (.xdata). */
xdata_base = xdata_arr[0];
xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".rdata");
if (!xdata_section)
xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".data");
if (!xdata_section)
xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".xdata");
if (!xdata_section)
xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".pdata");
if (!xdata_section)
xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".text");
if (!xdata_section
|| !bfd_malloc_and_get_section (abfd, xdata_section, &xdata))
goto done;
/* Do dump of pdata related xdata. */
for (i = 0; i < stop; i += onaline)
{
struct pex64_runtime_function rf;
if (i + PDATA_ROW_SIZE > stop)
break;
pex64_get_runtime_function (abfd, &rf, &pdata[i]);
if (rf.rva_BeginAddress == 0 && rf.rva_EndAddress == 0
&& rf.rva_UnwindData == 0)
/* We are probably into the padding of the section now. */
break;
if (i == 0)
fprintf (file, "\nDump of .xdata\n");
fputc (' ', file);
fprintf_vma (file, rf.rva_UnwindData + imagebase);
if (prev_unwinddata_rva == rf.rva_UnwindData)
{
/* Do not dump again the xdata for the same entry. */
fprintf (file, " also used for function at ");
fprintf_vma (file, rf.rva_BeginAddress + imagebase);
fputc ('\n', file);
continue;
}
else
prev_unwinddata_rva = rf.rva_UnwindData;
fprintf (file, " (rva: %08x): ",
(unsigned int) rf.rva_UnwindData);
fprintf_vma (file, rf.rva_BeginAddress + imagebase);
fprintf (file, " - ");
fprintf_vma (file, rf.rva_EndAddress + imagebase);
fputc ('\n', file);
if (rf.rva_UnwindData != 0)
{
if (PEX64_IS_RUNTIME_FUNCTION_CHAINED (&rf))
{
bfd_vma altent = PEX64_GET_UNWINDDATA_UNIFIED_RVA (&rf);
bfd_vma pdata_vma = bfd_get_section_vma (abfd, pdata_section);
struct pex64_runtime_function arf;
fprintf (file, "\t shares information with ");
altent += imagebase;
if (altent >= pdata_vma
&& (altent + PDATA_ROW_SIZE <= pdata_vma
+ pei_section_data (abfd, pdata_section)->virt_size))
{
pex64_get_runtime_function
(abfd, &arf, &pdata[altent - pdata_vma]);
fprintf (file, "pdata element at 0x");
fprintf_vma (file, arf.rva_UnwindData);
}
else
fprintf (file, "unknown pdata element");
fprintf (file, ".\n");
}
else
{
bfd_vma *p;
/* Search for the current entry in the sorted array. */
p = (bfd_vma *)
bsearch (&rf.rva_UnwindData, xdata_arr,
(size_t) xdata_arr_cnt, sizeof (bfd_vma),
sort_xdata_arr);
/* Advance to the next pointer into the xdata section. We may
have shared xdata entries, which will result in a string of
identical pointers in the array; advance past all of them. */
while (p[0] <= rf.rva_UnwindData)
++p;
if (p[0] == ~((bfd_vma) 0))
p = NULL;
pex64_dump_xdata (file, abfd, xdata_section, xdata, p, &rf);
}
}
}
done:
free (pdata);
free (xdata_arr);
free (xdata);
return TRUE;
}