/* BFD back-end for Intel 386 PE IMAGE COFF files.
- Copyright 2006, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2006-2020 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA.
-
+
Written by Kai Tietz, OneVision Software GmbH&CoKg. */
#include "sysdep.h"
#include "bfd.h"
-#define TARGET_SYM x86_64pei_vec
-#define TARGET_NAME "pei-x86-64"
+#define TARGET_SYM x86_64_pei_vec
+#define TARGET_NAME "pei-x86-64"
#define COFF_IMAGE_WITH_PE
#define COFF_WITH_PE
#define COFF_WITH_pex64
-#define PCRELOFFSET TRUE
-#define TARGET_UNDERSCORE '_'
-#define COFF_LONG_SECTION_NAMES
+#define PCRELOFFSET TRUE
+#if defined (USE_MINGW64_LEADING_UNDERSCORES)
+#define TARGET_UNDERSCORE '_'
+#else
+#define TARGET_UNDERSCORE 0
+#endif
+/* Long section names not allowed in executable images, only object files. */
+#define COFF_LONG_SECTION_NAMES 0
#define COFF_SUPPORT_GNU_LINKONCE
#define COFF_LONG_FILENAMES
+#define PDATA_ROW_SIZE (3 * 4)
#define COFF_SECTION_ALIGNMENT_ENTRIES \
{ COFF_SECTION_NAME_EXACT_MATCH (".bss"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \
-{ COFF_SECTION_NAME_EXACT_MATCH (".data"), \
+{ COFF_SECTION_NAME_PARTIAL_MATCH (".data"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \
-{ COFF_SECTION_NAME_EXACT_MATCH (".rdata"), \
+{ COFF_SECTION_NAME_PARTIAL_MATCH (".rdata"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \
-{ COFF_SECTION_NAME_EXACT_MATCH (".text"), \
+{ COFF_SECTION_NAME_PARTIAL_MATCH (".text"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \
{ COFF_SECTION_NAME_PARTIAL_MATCH (".idata"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
{ COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi."), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }
+/* Note we have to make sure not to include headers twice.
+ Not all headers are wrapped in #ifdef guards, so we define
+ PEI_HEADERS to prevent double including in coff-x86_64.c */
+#define PEI_HEADERS
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "coff/x86_64.h"
+#include "coff/internal.h"
+#include "coff/pe.h"
+#include "libcoff.h"
+#include "libpei.h"
+#include "libiberty.h"
+
+#undef AOUTSZ
+#define AOUTSZ PEPAOUTSZ
+#define PEAOUTHDR PEPAOUTHDR
+
+/* Name of registers according to SEH conventions. */
+
+static const char * const pex_regs[16] = {
+ "rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi",
+ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
+};
+
+/* Swap in a runtime function. */
+
+static void
+pex64_get_runtime_function (bfd *abfd, struct pex64_runtime_function *rf,
+ const void *data)
+{
+ const struct external_pex64_runtime_function *ex_rf =
+ (const struct external_pex64_runtime_function *) data;
+ rf->rva_BeginAddress = bfd_get_32 (abfd, ex_rf->rva_BeginAddress);
+ rf->rva_EndAddress = bfd_get_32 (abfd, ex_rf->rva_EndAddress);
+ rf->rva_UnwindData = bfd_get_32 (abfd, ex_rf->rva_UnwindData);
+}
+
+/* Swap in unwind info header. */
+
+static bfd_boolean
+pex64_get_unwind_info (bfd *abfd, struct pex64_unwind_info *ui,
+ void *data, void *data_end)
+{
+ struct external_pex64_unwind_info *ex_ui =
+ (struct external_pex64_unwind_info *) data;
+ bfd_byte *ex_dta = (bfd_byte *) data;
+ bfd_byte *ex_dta_end = (bfd_byte *) data_end;
+
+ memset (ui, 0, sizeof (struct pex64_unwind_info));
+
+ if (ex_dta >= ex_dta_end || ex_dta + 4 >= ex_dta_end)
+ return FALSE;
+
+ ui->Version = PEX64_UWI_VERSION (ex_ui->Version_Flags);
+ ui->Flags = PEX64_UWI_FLAGS (ex_ui->Version_Flags);
+ ui->SizeOfPrologue = (bfd_vma) ex_ui->SizeOfPrologue;
+ ui->CountOfCodes = (bfd_vma) ex_ui->CountOfCodes;
+ ui->FrameRegister = PEX64_UWI_FRAMEREG (ex_ui->FrameRegisterOffset);
+ ui->FrameOffset = PEX64_UWI_FRAMEOFF (ex_ui->FrameRegisterOffset);
+ ui->sizeofUnwindCodes = PEX64_UWI_SIZEOF_UWCODE_ARRAY (ui->CountOfCodes);
+ ui->SizeOfBlock = ui->sizeofUnwindCodes + 4;
+ ui->rawUnwindCodes = ex_dta + 4;
+ ui->rawUnwindCodesEnd = ex_dta_end;
+
+ ex_dta += ui->SizeOfBlock;
+ if (ex_dta >= ex_dta_end)
+ return FALSE;
+
+ switch (ui->Flags)
+ {
+ case UNW_FLAG_CHAININFO:
+ if (ex_dta + 12 >= ex_dta_end)
+ return FALSE;
+ ui->rva_BeginAddress = bfd_get_32 (abfd, ex_dta + 0);
+ ui->rva_EndAddress = bfd_get_32 (abfd, ex_dta + 4);
+ ui->rva_UnwindData = bfd_get_32 (abfd, ex_dta + 8);
+ ui->SizeOfBlock += 12;
+ return TRUE;
+ case UNW_FLAG_EHANDLER:
+ case UNW_FLAG_UHANDLER:
+ case UNW_FLAG_FHANDLER:
+ if (ex_dta + 4 >= ex_dta_end)
+ return FALSE;
+ ui->rva_ExceptionHandler = bfd_get_32 (abfd, ex_dta);
+ ui->SizeOfBlock += 4;
+ return TRUE;
+ default:
+ return TRUE;
+ }
+}
+
+/* Display unwind codes. */
+
+static void
+pex64_xdata_print_uwd_codes (FILE *file, bfd *abfd,
+ struct pex64_unwind_info *ui,
+ struct pex64_runtime_function *rf)
+{
+ unsigned int i;
+ unsigned int tmp; /* At least 32 bits. */
+ int save_allowed;
+
+ if (ui->CountOfCodes == 0 || ui->rawUnwindCodes == NULL)
+ return;
+
+ /* According to UNWIND_CODE documentation:
+ If an FP reg is used, the any unwind code taking an offset must only be
+ used after the FP reg is established in the prolog.
+ But there are counter examples of that in system dlls... */
+ save_allowed = TRUE;
+
+ i = 0;
+
+ if (ui->rawUnwindCodes + 1 >= ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+
+ if (ui->Version == 2
+ && PEX64_UNWCODE_CODE (ui->rawUnwindCodes[1]) == UWOP_EPILOG)
+ {
+ /* Display epilog opcode (whose docoding is not fully documented).
+ Looks to be designed to speed-up unwinding, as there is no need
+ to decode instruction flow if outside an epilog. */
+ unsigned int func_size = rf->rva_EndAddress - rf->rva_BeginAddress;
+
+ if (ui->rawUnwindCodes + 1 + (ui->CountOfCodes * 2) >= ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+
+ fprintf (file, "\tv2 epilog (length: %02x) at pc+:",
+ ui->rawUnwindCodes[0]);
+
+ if (PEX64_UNWCODE_INFO (ui->rawUnwindCodes[1]))
+ fprintf (file, " 0x%x", func_size - ui->rawUnwindCodes[0]);
+
+ i++;
+ for (; i < ui->CountOfCodes; i++)
+ {
+ const bfd_byte *dta = ui->rawUnwindCodes + 2 * i;
+ unsigned int off;
+
+ if (PEX64_UNWCODE_CODE (dta[1]) != UWOP_EPILOG)
+ break;
+ off = dta[0] | (PEX64_UNWCODE_INFO (dta[1]) << 8);
+ if (off == 0)
+ fprintf (file, " [pad]");
+ else
+ fprintf (file, " 0x%x", func_size - off);
+ }
+ fputc ('\n', file);
+ }
+
+ if (ui->rawUnwindCodes + 2 + (ui->CountOfCodes * 2) >= ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+
+ for (; i < ui->CountOfCodes; i++)
+ {
+ const bfd_byte *dta = ui->rawUnwindCodes + 2 * i;
+ unsigned int info = PEX64_UNWCODE_INFO (dta[1]);
+ int unexpected = FALSE;
+
+ fprintf (file, "\t pc+0x%02x: ", (unsigned int) dta[0]);
+
+ switch (PEX64_UNWCODE_CODE (dta[1]))
+ {
+ case UWOP_PUSH_NONVOL:
+ fprintf (file, "push %s", pex_regs[info]);
+ break;
+
+ case UWOP_ALLOC_LARGE:
+ if (info == 0)
+ {
+ if (dta + 4 > ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+ tmp = bfd_get_16 (abfd, dta + 2) * 8;
+ i++;
+ }
+ else
+ {
+ if (dta + 6 > ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+ tmp = bfd_get_32 (abfd, dta + 2);
+ i += 2;
+ }
+ fprintf (file, "alloc large area: rsp = rsp - 0x%x", tmp);
+ break;
+
+ case UWOP_ALLOC_SMALL:
+ fprintf (file, "alloc small area: rsp = rsp - 0x%x", (info + 1) * 8);
+ break;
+
+ case UWOP_SET_FPREG:
+ /* According to the documentation, info field is unused. */
+ fprintf (file, "FPReg: %s = rsp + 0x%x (info = 0x%x)",
+ pex_regs[ui->FrameRegister],
+ (unsigned int) ui->FrameOffset * 16, info);
+ unexpected = ui->FrameRegister == 0;
+ save_allowed = FALSE;
+ break;
+
+ case UWOP_SAVE_NONVOL:
+ if (dta + 4 > ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+ tmp = bfd_get_16 (abfd, dta + 2) * 8;
+ i++;
+ fprintf (file, "save %s at rsp + 0x%x", pex_regs[info], tmp);
+ unexpected = !save_allowed;
+ break;
+
+ case UWOP_SAVE_NONVOL_FAR:
+ if (dta + 6 > ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+ tmp = bfd_get_32 (abfd, dta + 2);
+ i += 2;
+ fprintf (file, "save %s at rsp + 0x%x", pex_regs[info], tmp);
+ unexpected = !save_allowed;
+ break;
+
+ case UWOP_SAVE_XMM:
+ if (ui->Version == 1)
+ {
+ if (dta + 4 > ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+ tmp = bfd_get_16 (abfd, dta + 2) * 8;
+ i++;
+ fprintf (file, "save mm%u at rsp + 0x%x", info, tmp);
+ unexpected = !save_allowed;
+ }
+ else if (ui->Version == 2)
+ {
+ fprintf (file, "epilog %02x %01x", dta[0], info);
+ unexpected = TRUE;
+ }
+ break;
+
+ case UWOP_SAVE_XMM_FAR:
+ if (dta + 6 > ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+ tmp = bfd_get_32 (abfd, dta + 2) * 8;
+ i += 2;
+ fprintf (file, "save mm%u at rsp + 0x%x", info, tmp);
+ unexpected = !save_allowed;
+ break;
+
+ case UWOP_SAVE_XMM128:
+ if (dta + 4 > ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+ tmp = bfd_get_16 (abfd, dta + 2) * 16;
+ i++;
+ fprintf (file, "save xmm%u at rsp + 0x%x", info, tmp);
+ unexpected = !save_allowed;
+ break;
+
+ case UWOP_SAVE_XMM128_FAR:
+ if (dta + 6 > ui->rawUnwindCodesEnd)
+ {
+ fprintf (file, _("warning: corrupt unwind data\n"));
+ return;
+ }
+ tmp = bfd_get_32 (abfd, dta + 2) * 16;
+ i += 2;
+ fprintf (file, "save xmm%u at rsp + 0x%x", info, tmp);
+ unexpected = !save_allowed;
+ break;
+
+ case UWOP_PUSH_MACHFRAME:
+ fprintf (file, "interrupt entry (SS, old RSP, EFLAGS, CS, RIP");
+ if (info == 0)
+ fprintf (file, ")");
+ else if (info == 1)
+ fprintf (file, ",ErrorCode)");
+ else
+ fprintf (file, ", unknown(%u))", info);
+ break;
+
+ default:
+ /* PR 17512: file: 2245-7442-0.004. */
+ fprintf (file, _("Unknown: %x"), PEX64_UNWCODE_CODE (dta[1]));
+ break;
+ }
+
+ if (unexpected)
+ fprintf (file, " [Unexpected!]");
+ fputc ('\n', file);
+ }
+}
+
+/* Check wether section SEC_NAME contains the xdata at address ADDR. */
+
+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;
+}
+
+/* Dump xdata at for function RF to FILE. The argument XDATA_SECTION
+ designate the bfd section containing the xdata, XDATA is its content,
+ and ENDX the size if known (or NULL). */
+
+static void
+pex64_dump_xdata (FILE *file, bfd *abfd,
+ asection *xdata_section, bfd_byte *xdata, bfd_vma *endx,
+ struct pex64_runtime_function *rf)
+{
+ bfd_vma vaddr;
+ bfd_vma end_addr;
+ bfd_vma addr = rf->rva_UnwindData;
+ bfd_size_type sec_size = xdata_section->rawsize > 0 ? xdata_section->rawsize : xdata_section->size;
+ struct pex64_unwind_info ui;
+
+ vaddr = xdata_section->vma - pe_data (abfd)->pe_opthdr.ImageBase;
+ addr -= vaddr;
+
+ /* PR 17512: file: 2245-7442-0.004. */
+ if (addr >= sec_size)
+ {
+ fprintf (file, _("warning: xdata section corrupt\n"));
+ return;
+ }
+
+ if (endx)
+ {
+ end_addr = endx[0] - vaddr;
+ /* PR 17512: file: 2245-7442-0.004. */
+ if (end_addr > sec_size)
+ {
+ fprintf (file, _("warning: xdata section corrupt\n"));
+ end_addr = sec_size;
+ }
+ }
+ else
+ end_addr = sec_size;
+
+ if (! pex64_get_unwind_info (abfd, &ui, xdata + addr, xdata + end_addr))
+ {
+ fprintf (file, _("warning: xdata section corrupt\n"));
+ return;
+ }
+
+ if (ui.Version != 1 && ui.Version != 2)
+ {
+ unsigned int i;
+ fprintf (file, "\tVersion %u (unknown).\n",
+ (unsigned int) ui.Version);
+ for (i = 0; addr < end_addr; addr += 1, i++)
+ {
+ if ((i & 15) == 0)
+ fprintf (file, "\t %03x:", i);
+ fprintf (file, " %02x", xdata[addr]);
+ if ((i & 15) == 15)
+ fprintf (file, "\n");
+ }
+ if ((i & 15) != 0)
+ fprintf (file, "\n");
+ return;
+ }
+
+ fprintf (file, "\tVersion: %d, Flags: ", ui.Version);
+ switch (ui.Flags)
+ {
+ case UNW_FLAG_NHANDLER:
+ fprintf (file, "none");
+ break;
+ case UNW_FLAG_EHANDLER:
+ fprintf (file, "UNW_FLAG_EHANDLER");
+ break;
+ case UNW_FLAG_UHANDLER:
+ fprintf (file, "UNW_FLAG_UHANDLER");
+ break;
+ case UNW_FLAG_FHANDLER:
+ fprintf
+ (file, "UNW_FLAG_EHANDLER | UNW_FLAG_UHANDLER");
+ break;
+ case UNW_FLAG_CHAININFO:
+ fprintf (file, "UNW_FLAG_CHAININFO");
+ break;
+ default:
+ fprintf (file, "unknown flags value 0x%x", (unsigned int) ui.Flags);
+ break;
+ }
+ fputc ('\n', file);
+ fprintf (file, "\tNbr codes: %u, ", (unsigned int) ui.CountOfCodes);
+ fprintf (file, "Prologue size: 0x%02x, Frame offset: 0x%x, ",
+ (unsigned int) ui.SizeOfPrologue, (unsigned int) ui.FrameOffset);
+ fprintf (file, "Frame reg: %s\n",
+ ui.FrameRegister == 0 ? "none"
+ : pex_regs[(unsigned int) ui.FrameRegister]);
+
+ /* PR 17512: file: 2245-7442-0.004. */
+ if (ui.CountOfCodes * 2 + ui.rawUnwindCodes > xdata + xdata_section->size)
+ fprintf (file, _("Too many unwind codes (%ld)\n"), (long) ui.CountOfCodes);
+ else
+ pex64_xdata_print_uwd_codes (file, abfd, &ui, rf);
+
+ switch (ui.Flags)
+ {
+ case UNW_FLAG_EHANDLER:
+ case UNW_FLAG_UHANDLER:
+ case UNW_FLAG_FHANDLER:
+ fprintf (file, "\tHandler: ");
+ fprintf_vma (file, (ui.rva_ExceptionHandler
+ + pe_data (abfd)->pe_opthdr.ImageBase));
+ fprintf (file, ".\n");
+ break;
+ case UNW_FLAG_CHAININFO:
+ fprintf (file, "\tChain: start: ");
+ fprintf_vma (file, ui.rva_BeginAddress);
+ fprintf (file, ", end: ");
+ fprintf_vma (file, ui.rva_EndAddress);
+ fprintf (file, "\n\t unwind data: ");
+ fprintf_vma (file, ui.rva_UnwindData);
+ fprintf (file, ".\n");
+ break;
+ }
+
+ /* Now we need end of this xdata block. */
+ addr += ui.SizeOfBlock;
+ if (addr < end_addr)
+ {
+ unsigned int i;
+ fprintf (file,"\tUser data:\n");
+ for (i = 0; addr < end_addr; addr += 1, i++)
+ {
+ if ((i & 15) == 0)
+ fprintf (file, "\t %03x:", i);
+ fprintf (file, " %02x", xdata[addr]);
+ if ((i & 15) == 15)
+ fprintf (file, "\n");
+ }
+ if ((i & 15) != 0)
+ fprintf (file, "\n");
+ }
+}
+
+/* Helper function to sort xdata. The entries of xdata are sorted to know
+ the size of each entry. */
+
+static int
+sort_xdata_arr (const void *l, const void *r)
+{
+ const bfd_vma *lp = (const bfd_vma *) l;
+ const bfd_vma *rp = (const bfd_vma *) r;
+
+ if (*lp == *rp)
+ return 0;
+ return (*lp < *rp ? -1 : 1);
+}
+
+/* Display unwind tables for x86-64. */
+
+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,
+ /* xgettext:c-format */
+ _("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;
+ virt_size_is_zero = TRUE;
+ }
+ else if (datasize < stop)
+ {
+ fprintf (file,
+ /* xgettext:c-format */
+ _("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 past datasize. */
+ stop = datasize;
+ }
+
+ /* 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 = xmalloc (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);
+ free (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_section_vma (pdata_section);
+ struct pex64_runtime_function arf;
+
+ fprintf (file, "\t shares information with ");
+ altent += imagebase;
+
+ if (altent >= pdata_vma
+ && altent - pdata_vma + PDATA_ROW_SIZE <= stop)
+ {
+ 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 counter of number of found pdata sections. */
+static bfd_boolean pdata_count;
+
+/* Functionn prototype. */
+bfd_boolean pex64_bfd_print_pdata (bfd *, void *);
+
+/* Helper function for bfd_map_over_section. */
+static void
+pex64_print_all_pdata_sections (bfd *abfd, asection *pdata, void *obj)
+{
+ if (CONST_STRNEQ (pdata->name, ".pdata"))
+ {
+ if (pex64_bfd_print_pdata_section (abfd, obj, pdata))
+ pdata_count++;
+ }
+}
+
+bfd_boolean
+pex64_bfd_print_pdata (bfd *abfd, void *vfile)
+{
+ asection *pdata_section = bfd_get_section_by_name (abfd, ".pdata");
+
+ if (pdata_section)
+ return pex64_bfd_print_pdata_section (abfd, vfile, pdata_section);
+
+ pdata_count = 0;
+ bfd_map_over_sections (abfd, pex64_print_all_pdata_sections, vfile);
+ return (pdata_count > 0);
+}
+
+#define bfd_pe_print_pdata pex64_bfd_print_pdata
+#define bfd_coff_std_swap_table bfd_coff_pei_swap_table
+
#include "coff-x86_64.c"
projects / deliverable / binutils-gdb.git / blobdiff