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a2c7ca15a5
long is a poor choice of type to store 32-bit values read from objects files by H_GET_32. H_GET_32 doesn't sign extend so tests like that in gdb/coffread.c for "negative" values won't work if long is larger than 32 bits. If long is 32-bit then code needs to be careful to not accidentally index negative array elements. (I'd rather see a segfault on an unmapped 4G array index than silently reading bogus data.) long is also a poor choice for x_sect.s_scnlen, which might have 64-bit values. It's better to use unsigned exact width types to avoid surprises. I decided to change the field names too, which makes most of this patch simply renaming. Besides that there are a few places where casts are no longer needed, and where printf format strings or tests need adjusting. include/ * coff/internal.h (union internal_auxent): Use unsigned stdint types. Rename l fields to u32 and u64 as appropriate. bfd/ * coff-bfd.c, * coff-rs6000.c, * coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c, * coffswap.h, * peXXigen.c, * xcofflink.c: Adjust to suit internal_auxent changes. binutils/ * rdcoff.c: Adjust to suit internal_auxent changes. gas/ * config/obj-coff.h, * config/tc-ppc.c: Adjust to suit internal_auxent changes. gdb/ * coffread.c, * xcoffread.c: Adjust to suit internal_auxent changes. ld/ * pe-dll.c: Adjust to suit internal_auxent changes.
714 lines
26 KiB
C
714 lines
26 KiB
C
/* Internal format of COFF object file data structures, for GNU BFD.
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This file is part of BFD, the Binary File Descriptor library.
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Copyright (C) 1999-2023 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef GNU_COFF_INTERNAL_H
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#define GNU_COFF_INTERNAL_H 1
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/* First, make "signed char" work, even on old compilers. */
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#ifndef signed
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#ifndef __STDC__
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#define signed /**/
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#endif
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#endif
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/********************** FILE HEADER **********************/
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/* extra stuff in a PE header. */
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struct internal_extra_pe_filehdr
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{
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/* DOS header data follows for PE stuff */
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unsigned short e_magic; /* Magic number, 0x5a4d */
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unsigned short e_cblp; /* Bytes on last page of file, 0x90 */
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unsigned short e_cp; /* Pages in file, 0x3 */
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unsigned short e_crlc; /* Relocations, 0x0 */
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unsigned short e_cparhdr; /* Size of header in paragraphs, 0x4 */
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unsigned short e_minalloc; /* Minimum extra paragraphs needed, 0x0 */
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unsigned short e_maxalloc; /* Maximum extra paragraphs needed, 0xFFFF */
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unsigned short e_ss; /* Initial (relative) SS value, 0x0 */
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unsigned short e_sp; /* Initial SP value, 0xb8 */
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unsigned short e_csum; /* Checksum, 0x0 */
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unsigned short e_ip; /* Initial IP value, 0x0 */
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unsigned short e_cs; /* Initial (relative) CS value, 0x0 */
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unsigned short e_lfarlc; /* File address of relocation table, 0x40 */
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unsigned short e_ovno; /* Overlay number, 0x0 */
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unsigned short e_res[4]; /* Reserved words, all 0x0 */
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unsigned short e_oemid; /* OEM identifier (for e_oeminfo), 0x0 */
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unsigned short e_oeminfo; /* OEM information; e_oemid specific, 0x0 */
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unsigned short e_res2[10]; /* Reserved words, all 0x0 */
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bfd_vma e_lfanew; /* File address of new exe header, 0x80 */
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unsigned int dos_message[16]; /* Text which always follows DOS header. */
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bfd_vma nt_signature; /* required NT signature, 0x4550 */
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};
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struct internal_filehdr
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{
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struct internal_extra_pe_filehdr pe;
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/* Standard coff internal info. */
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unsigned short f_magic; /* magic number */
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unsigned int f_nscns; /* number of sections */
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long f_timdat; /* time & date stamp */
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bfd_vma f_symptr; /* file pointer to symtab */
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long f_nsyms; /* number of symtab entries */
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unsigned short f_opthdr; /* sizeof(optional hdr) */
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unsigned short f_flags; /* flags */
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unsigned short f_target_id; /* (TI COFF specific) */
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};
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/* Bits for f_flags:
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F_RELFLG relocation info stripped from file
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F_EXEC file is executable (no unresolved external references)
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F_LNNO line numbers stripped from file
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F_LSYMS local symbols stripped from file
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F_AR16WR file is 16-bit little-endian
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F_AR32WR file is 32-bit little-endian
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F_AR32W file is 32-bit big-endian
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F_DYNLOAD rs/6000 aix: dynamically loadable w/imports & exports
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F_SHROBJ rs/6000 aix: file is a shared object
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F_DLL PE format DLL */
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#define F_RELFLG (0x0001)
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#define F_EXEC (0x0002)
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#define F_LNNO (0x0004)
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#define F_LSYMS (0x0008)
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#define F_AR16WR (0x0080)
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#define F_AR32WR (0x0100)
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#define F_AR32W (0x0200)
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#define F_DYNLOAD (0x1000)
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#define F_SHROBJ (0x2000)
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#define F_DLL (0x2000)
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/* Extra structure which is used in the optional header. */
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typedef struct _IMAGE_DATA_DIRECTORY
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{
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bfd_vma VirtualAddress;
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long Size;
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} IMAGE_DATA_DIRECTORY;
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#define PE_EXPORT_TABLE 0
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#define PE_IMPORT_TABLE 1
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#define PE_RESOURCE_TABLE 2
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#define PE_EXCEPTION_TABLE 3
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#define PE_CERTIFICATE_TABLE 4
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#define PE_BASE_RELOCATION_TABLE 5
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#define PE_DEBUG_DATA 6
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#define PE_ARCHITECTURE 7
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#define PE_GLOBAL_PTR 8
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#define PE_TLS_TABLE 9
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#define PE_LOAD_CONFIG_TABLE 10
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#define PE_BOUND_IMPORT_TABLE 11
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#define PE_IMPORT_ADDRESS_TABLE 12
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#define PE_DELAY_IMPORT_DESCRIPTOR 13
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#define PE_CLR_RUNTIME_HEADER 14
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/* DataDirectory[15] is currently reserved, so no define. */
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#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
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/* Extra structure used in debug directory. */
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struct internal_IMAGE_DEBUG_DIRECTORY
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{
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unsigned long Characteristics;
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unsigned long TimeDateStamp;
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unsigned short MajorVersion;
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unsigned short MinorVersion;
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unsigned long Type;
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unsigned long SizeOfData;
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unsigned long AddressOfRawData;
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unsigned long PointerToRawData;
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};
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#define PE_IMAGE_DEBUG_TYPE_UNKNOWN 0
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#define PE_IMAGE_DEBUG_TYPE_COFF 1
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#define PE_IMAGE_DEBUG_TYPE_CODEVIEW 2
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#define PE_IMAGE_DEBUG_TYPE_FPO 3
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#define PE_IMAGE_DEBUG_TYPE_MISC 4
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#define PE_IMAGE_DEBUG_TYPE_EXCEPTION 5
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#define PE_IMAGE_DEBUG_TYPE_FIXUP 6
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#define PE_IMAGE_DEBUG_TYPE_OMAP_TO_SRC 7
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#define PE_IMAGE_DEBUG_TYPE_OMAP_FROM_SRC 8
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#define PE_IMAGE_DEBUG_TYPE_BORLAND 9
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#define PE_IMAGE_DEBUG_TYPE_RESERVED10 10
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#define PE_IMAGE_DEBUG_TYPE_CLSID 11
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#define PE_IMAGE_DEBUG_TYPE_VC_FEATURE 12
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#define PE_IMAGE_DEBUG_TYPE_POGO 13
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#define PE_IMAGE_DEBUG_TYPE_ILTCG 14
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#define PE_IMAGE_DEBUG_TYPE_MPX 15
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#define PE_IMAGE_DEBUG_TYPE_REPRO 16
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/* Extra structure for a codeview debug record */
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#define CV_INFO_SIGNATURE_LENGTH 16
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typedef struct _CODEVIEW_INFO
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{
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unsigned long CVSignature;
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char Signature[CV_INFO_SIGNATURE_LENGTH];
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unsigned int SignatureLength;
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unsigned long Age;
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/* char PdbFileName[]; */
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} CODEVIEW_INFO;
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/* Default image base for NT. */
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#define NT_EXE_IMAGE_BASE 0x400000
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#define NT_DLL_IMAGE_BASE 0x10000000
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/* Default image base for BeOS. */
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#define BEOS_EXE_IMAGE_BASE 0x80000000
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#define BEOS_DLL_IMAGE_BASE 0x10000000
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/* Extra stuff in a PE aouthdr */
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#define PE_DEF_SECTION_ALIGNMENT 0x1000
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#ifndef PE_DEF_FILE_ALIGNMENT
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# define PE_DEF_FILE_ALIGNMENT 0x200
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#endif
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struct internal_extra_pe_aouthdr
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{
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/* FIXME: The following entries are in AOUTHDR. But they aren't
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available internally in bfd. We add them here so that objdump
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can dump them. */
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/* The state of the image file. */
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short Magic;
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/* Linker major version number. */
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char MajorLinkerVersion;
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/* Linker minor version number. */
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char MinorLinkerVersion;
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/* Total size of all code sections. */
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bfd_vma SizeOfCode;
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/* Total size of all initialized data sections. */
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bfd_vma SizeOfInitializedData;
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/* Total size of all uninitialized data sections. */
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bfd_vma SizeOfUninitializedData;
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/* Address of entry point relative to image base. */
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bfd_vma AddressOfEntryPoint;
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/* Address of the first code section relative to image base. */
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bfd_vma BaseOfCode;
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/* Address of the first data section relative to image base. */
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bfd_vma BaseOfData;
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/* PE stuff */
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bfd_vma ImageBase; /* Address of specific location in memory that
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file is located, NT default 0x10000. */
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uint32_t SectionAlignment; /* Section alignment default 0x1000. */
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uint32_t FileAlignment; /* File alignment default 0x200. */
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short MajorOperatingSystemVersion; /* Minimum version of the operating. */
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short MinorOperatingSystemVersion; /* System req'd for exe, default 1. */
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short MajorImageVersion; /* User defineable field to store version of */
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short MinorImageVersion; /* exe or dll being created, default to 0. */
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short MajorSubsystemVersion; /* Minimum subsystem version required to */
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short MinorSubsystemVersion; /* run exe; default to 3.1. */
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uint32_t Reserved1; /* Seems to be 0. */
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uint32_t SizeOfImage; /* Size of memory to allocate for prog. */
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uint32_t SizeOfHeaders; /* Size of PE header and section table. */
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uint32_t CheckSum; /* Set to 0. */
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short Subsystem;
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/* Type of subsystem exe uses for user interface,
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possible values:
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1 - NATIVE Doesn't require a subsystem
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2 - WINDOWS_GUI runs in Windows GUI subsystem
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3 - WINDOWS_CUI runs in Windows char sub. (console app)
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5 - OS2_CUI runs in OS/2 character subsystem
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7 - POSIX_CUI runs in Posix character subsystem. */
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unsigned short DllCharacteristics; /* flags for DLL init. */
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bfd_vma SizeOfStackReserve; /* Amount of memory to reserve. */
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bfd_vma SizeOfStackCommit; /* Amount of memory initially committed for
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initial thread's stack, default 0x1000. */
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bfd_vma SizeOfHeapReserve; /* Amount of virtual memory to reserve and */
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bfd_vma SizeOfHeapCommit; /* commit, don't know what to defaut it to. */
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uint32_t LoaderFlags; /* Can probably set to 0. */
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uint32_t NumberOfRvaAndSizes; /* Number of entries in next entry, 16. */
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IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
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};
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/********************** AOUT "OPTIONAL HEADER" **********************/
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struct internal_aouthdr
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{
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short magic; /* type of file */
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short vstamp; /* version stamp */
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bfd_vma tsize; /* text size in bytes, padded to FW bdry*/
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bfd_vma dsize; /* initialized data " " */
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bfd_vma bsize; /* uninitialized data " " */
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bfd_vma entry; /* entry pt. */
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bfd_vma text_start; /* base of text used for this file */
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bfd_vma data_start; /* base of data used for this file */
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/* RS/6000 stuff */
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bfd_vma o_toc; /* address of TOC */
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short o_snentry; /* section number for entry point */
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short o_sntext; /* section number for text */
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short o_sndata; /* section number for data */
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short o_sntoc; /* section number for toc */
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short o_snloader; /* section number for loader section */
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short o_snbss; /* section number for bss */
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short o_algntext; /* max alignment for text */
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short o_algndata; /* max alignment for data */
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short o_modtype; /* Module type field, 1R,RE,RO */
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short o_cputype; /* Encoded CPU type */
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bfd_vma o_maxstack; /* max stack size allowed. */
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bfd_vma o_maxdata; /* max data size allowed. */
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char o_flags; /* Flags and TLS alignment */
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short o_sntdata; /* section number for tdata */
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short o_sntbss; /* section number for tbss */
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short o_x64flags; /* XCOFF64 flags */
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/* ECOFF stuff */
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bfd_vma bss_start; /* Base of bss section. */
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bfd_vma gp_value; /* GP register value. */
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unsigned long gprmask; /* General registers used. */
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unsigned long cprmask[4]; /* Coprocessor registers used. */
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unsigned long fprmask; /* Floating pointer registers used. */
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/* Apollo stuff */
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long o_inlib; /* inlib data */
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long o_sri; /* Static Resource Information */
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long vid[2]; /* Version id */
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struct internal_extra_pe_aouthdr pe;
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};
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/********************** STORAGE CLASSES **********************/
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/* This used to be defined as -1, but now n_sclass is unsigned. */
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#define C_EFCN 0xff /* physical end of function */
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#define C_NULL 0
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#define C_AUTO 1 /* automatic variable */
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#define C_EXT 2 /* external symbol */
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#define C_STAT 3 /* static */
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#define C_REG 4 /* register variable */
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#define C_EXTDEF 5 /* external definition */
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#define C_LABEL 6 /* label */
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#define C_ULABEL 7 /* undefined label */
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#define C_MOS 8 /* member of structure */
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#define C_ARG 9 /* function argument */
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#define C_STRTAG 10 /* structure tag */
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#define C_MOU 11 /* member of union */
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#define C_UNTAG 12 /* union tag */
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#define C_TPDEF 13 /* type definition */
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#define C_USTATIC 14 /* undefined static */
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#define C_ENTAG 15 /* enumeration tag */
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#define C_MOE 16 /* member of enumeration */
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#define C_REGPARM 17 /* register parameter */
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#define C_FIELD 18 /* bit field */
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#define C_AUTOARG 19 /* auto argument */
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#define C_LASTENT 20 /* dummy entry (end of block) */
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#define C_BLOCK 100 /* ".bb" or ".eb" */
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#define C_FCN 101 /* ".bf" or ".ef" */
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#define C_EOS 102 /* end of structure */
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#define C_FILE 103 /* file name */
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#define C_LINE 104 /* line # reformatted as symbol table entry */
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#define C_ALIAS 105 /* duplicate tag */
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#define C_HIDDEN 106 /* ext symbol in dmert public lib */
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#define C_WEAKEXT 127 /* weak symbol -- GNU extension. */
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/* New storage classes for TI COFF */
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#define C_UEXT 19 /* Tentative external definition */
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#define C_STATLAB 20 /* Static load time label */
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#define C_EXTLAB 21 /* External load time label */
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#define C_SYSTEM 23 /* System Wide variable */
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/* New storage classes for WINDOWS_NT */
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#define C_SECTION 104 /* section name */
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#define C_NT_WEAK 105 /* weak external */
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/* New storage classes for 80960 */
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/* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */
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#define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */
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#define C_SCALL 107 /* Procedure reachable via system call */
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#define C_LEAFEXT 108 /* External leaf */
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#define C_LEAFSTAT 113 /* Static leaf */
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#define C_OPTVAR 109 /* Optimized variable */
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#define C_DEFINE 110 /* Preprocessor #define */
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#define C_PRAGMA 111 /* Advice to compiler or linker */
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#define C_SEGMENT 112 /* 80960 segment name */
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/* New storage classes for RS/6000 */
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#define C_HIDEXT 107 /* Un-named external symbol */
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#define C_BINCL 108 /* Marks beginning of include file */
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#define C_EINCL 109 /* Marks ending of include file */
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#define C_AIX_WEAKEXT 111 /* AIX definition of C_WEAKEXT. */
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#define C_DWARF 112 /* DWARF symbol */
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#define C_NULL_VALUE 0x00de1e00 /* Value for a C_NULL deleted entry. */
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#if defined _AIX52 || defined AIX_WEAK_SUPPORT
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#undef C_WEAKEXT
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#define C_WEAKEXT C_AIX_WEAKEXT
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#endif
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/* storage classes for stab symbols for RS/6000 */
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#define C_GSYM (0x80)
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#define C_LSYM (0x81)
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#define C_PSYM (0x82)
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#define C_RSYM (0x83)
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#define C_RPSYM (0x84)
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#define C_STSYM (0x85)
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#define C_TCSYM (0x86)
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#define C_BCOMM (0x87)
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#define C_ECOML (0x88)
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#define C_ECOMM (0x89)
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#define C_DECL (0x8c)
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#define C_ENTRY (0x8d)
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#define C_FUN (0x8e)
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#define C_BSTAT (0x8f)
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#define C_ESTAT (0x90)
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#define C_GTLS (0x97)
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#define C_STTLS (0x98)
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/* Storage classes for Thumb symbols */
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#define C_THUMBEXT (128 + C_EXT) /* 130 */
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#define C_THUMBSTAT (128 + C_STAT) /* 131 */
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#define C_THUMBLABEL (128 + C_LABEL) /* 134 */
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#define C_THUMBEXTFUNC (C_THUMBEXT + 20) /* 150 */
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#define C_THUMBSTATFUNC (C_THUMBSTAT + 20) /* 151 */
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/* True if XCOFF symbols of class CLASS have auxiliary csect information. */
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#define CSECT_SYM_P(CLASS) \
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((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT)
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/********************** SECTION HEADER **********************/
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#define SCNNMLEN (8)
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struct internal_scnhdr
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{
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char s_name[SCNNMLEN] ATTRIBUTE_NONSTRING; /* section name */
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/* Physical address, aliased s_nlib.
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In the pei format, this field is the virtual section size
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(the size of the section after being loaded int memory),
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NOT the physical address. */
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bfd_vma s_paddr;
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bfd_vma s_vaddr; /* virtual address */
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bfd_vma s_size; /* section size */
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bfd_vma s_scnptr; /* file ptr to raw data for section */
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bfd_vma s_relptr; /* file ptr to relocation */
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bfd_vma s_lnnoptr; /* file ptr to line numbers */
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unsigned long s_nreloc; /* number of relocation entries */
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unsigned long s_nlnno; /* number of line number entries*/
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unsigned long s_flags; /* flags */
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unsigned char s_page; /* TI COFF load page */
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};
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/* s_flags "type". */
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#define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */
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#define STYP_DSECT (0x0001) /* "dummy": relocated only*/
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#define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */
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#define STYP_GROUP (0x0004) /* "grouped": formed of input sections */
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#define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */
|
|
#define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated,
|
|
loaded; reloc & lineno entries processed normally */
|
|
#define STYP_TEXT (0x0020) /* section contains text only */
|
|
#define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
|
|
will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
|
|
update all process invocations. */
|
|
#define STYP_DATA (0x0040) /* section contains data only */
|
|
#define STYP_BSS (0x0080) /* section contains bss only */
|
|
#define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
|
|
#define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */
|
|
#define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */
|
|
#define STYP_LIB (0x0800) /* for .lib: same as INFO */
|
|
#define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */
|
|
#define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions
|
|
wherever padding is necessary and there is a
|
|
word of contiguous bytes beginning on a word
|
|
boundary. */
|
|
|
|
#define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */
|
|
|
|
|
|
/********************** LINE NUMBERS **********************/
|
|
|
|
/* 1 line number entry for every "breakpointable" source line in a section.
|
|
Line numbers are grouped on a per function basis; first entry in a function
|
|
grouping will have l_lnno = 0 and in place of physical address will be the
|
|
symbol table index of the function name. */
|
|
|
|
struct internal_lineno
|
|
{
|
|
union
|
|
{
|
|
bfd_signed_vma l_symndx; /* function name symbol index, iff l_lnno == 0*/
|
|
bfd_signed_vma l_paddr; /* (physical) address of line number */
|
|
} l_addr;
|
|
unsigned long l_lnno; /* line number */
|
|
};
|
|
|
|
/********************** SYMBOLS **********************/
|
|
|
|
#define SYMNMLEN 8 /* # characters in a symbol name */
|
|
#define FILNMLEN 14 /* # characters in a file name */
|
|
#define DIMNUM 4 /* # array dimensions in auxiliary entry */
|
|
|
|
struct internal_syment
|
|
{
|
|
union
|
|
{
|
|
char _n_name[SYMNMLEN] ATTRIBUTE_NONSTRING; /* old COFF version */
|
|
struct
|
|
{
|
|
uintptr_t _n_zeroes; /* new == 0 */
|
|
uintptr_t _n_offset; /* offset into string table */
|
|
} _n_n;
|
|
char *_n_nptr[2]; /* allows for overlaying */
|
|
} _n;
|
|
bfd_vma n_value; /* value of symbol */
|
|
int n_scnum; /* section number */
|
|
unsigned short n_flags; /* copy of flags from filhdr */
|
|
unsigned short n_type; /* type and derived type */
|
|
unsigned char n_sclass; /* storage class */
|
|
unsigned char n_numaux; /* number of aux. entries */
|
|
};
|
|
|
|
#define n_name _n._n_name
|
|
#define n_zeroes _n._n_n._n_zeroes
|
|
#define n_offset _n._n_n._n_offset
|
|
|
|
/* Relocatable symbols have number of the section in which they are defined,
|
|
or one of the following: */
|
|
|
|
#define N_UNDEF ((int)0) /* undefined symbol */
|
|
#define N_ABS ((int)-1) /* value of symbol is absolute */
|
|
#define N_DEBUG ((int)-2) /* debugging symbol -- value is meaningless */
|
|
#define N_TV ((int)-3) /* indicates symbol needs preload transfer vector */
|
|
#define P_TV ((int)-4) /* indicates symbol needs postload transfer vector*/
|
|
|
|
/* Type of a symbol, in low N bits of the word. */
|
|
|
|
#define T_NULL 0
|
|
#define T_VOID 1 /* function argument (only used by compiler) */
|
|
#define T_CHAR 2 /* character */
|
|
#define T_SHORT 3 /* short integer */
|
|
#define T_INT 4 /* integer */
|
|
#define T_LONG 5 /* long integer */
|
|
#define T_FLOAT 6 /* floating point */
|
|
#define T_DOUBLE 7 /* double word */
|
|
#define T_STRUCT 8 /* structure */
|
|
#define T_UNION 9 /* union */
|
|
#define T_ENUM 10 /* enumeration */
|
|
#define T_MOE 11 /* member of enumeration*/
|
|
#define T_UCHAR 12 /* unsigned character */
|
|
#define T_USHORT 13 /* unsigned short */
|
|
#define T_UINT 14 /* unsigned integer */
|
|
#define T_ULONG 15 /* unsigned long */
|
|
#define T_LNGDBL 16 /* long double */
|
|
|
|
/* Derived types, in n_type. */
|
|
|
|
#define DT_NON (0) /* no derived type */
|
|
#define DT_PTR (1) /* pointer */
|
|
#define DT_FCN (2) /* function */
|
|
#define DT_ARY (3) /* array */
|
|
|
|
#define BTYPE(x) ((x) & N_BTMASK)
|
|
#define DTYPE(x) (((x) & N_TMASK) >> N_BTSHFT)
|
|
|
|
#define ISPTR(x) \
|
|
(((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT))
|
|
#define ISFCN(x) \
|
|
(((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT))
|
|
#define ISARY(x) \
|
|
(((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT))
|
|
#define ISTAG(x) \
|
|
((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
|
|
#define DECREF(x) \
|
|
((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK))
|
|
|
|
/* Visibility flag, in XCOFF n_type. */
|
|
#define SYM_V_INTERNAL 0x1000
|
|
#define SYM_V_HIDDEN 0x2000
|
|
#define SYM_V_PROTECTED 0x3000
|
|
#define SYM_V_EXPORTED 0x4000
|
|
#define SYM_V_MASK 0xF000
|
|
|
|
union internal_auxent
|
|
{
|
|
struct
|
|
{
|
|
union
|
|
{
|
|
uint32_t u32; /* str, un, or enum tag indx */
|
|
struct coff_ptr_struct *p;
|
|
} x_tagndx;
|
|
|
|
union
|
|
{
|
|
struct
|
|
{
|
|
uint16_t x_lnno; /* declaration line number */
|
|
uint16_t x_size; /* str/union/array size */
|
|
} x_lnsz;
|
|
uint32_t x_fsize; /* size of function */
|
|
} x_misc;
|
|
|
|
union
|
|
{
|
|
struct
|
|
{ /* if ISFCN, tag, or .bb */
|
|
uint64_t x_lnnoptr; /* ptr to fcn line # */
|
|
union
|
|
{ /* entry ndx past block end */
|
|
uint32_t u32;
|
|
struct coff_ptr_struct *p;
|
|
} x_endndx;
|
|
} x_fcn;
|
|
|
|
struct
|
|
{ /* if ISARY, up to 4 dimen. */
|
|
uint16_t x_dimen[DIMNUM];
|
|
} x_ary;
|
|
} x_fcnary;
|
|
|
|
uint16_t x_tvndx; /* tv index */
|
|
} x_sym;
|
|
|
|
struct
|
|
{
|
|
union
|
|
{
|
|
/* PR 17754: We used to use FILNMLEN for the size of the x_fname
|
|
array, but that causes problems as PE targets use a larger
|
|
value. We cannot use their definition of E_FILNMLEN as this
|
|
header can be used without including any PE headers. */
|
|
char x_fname[20];
|
|
struct
|
|
{
|
|
/* PR 28630: We use uintptr_t because these fields may be
|
|
used to hold pointers. We assume that this type is at least
|
|
32 bits. */
|
|
uintptr_t x_zeroes;
|
|
uintptr_t x_offset;
|
|
} x_n;
|
|
} x_n;
|
|
|
|
uint8_t x_ftype;
|
|
} x_file;
|
|
|
|
struct
|
|
{
|
|
uint32_t x_scnlen; /* section length */
|
|
uint16_t x_nreloc; /* # relocation entries */
|
|
uint16_t x_nlinno; /* # line numbers */
|
|
uint32_t x_checksum; /* section COMDAT checksum for PE */
|
|
uint16_t x_associated; /* COMDAT associated section index for PE */
|
|
uint8_t x_comdat; /* COMDAT selection number for PE */
|
|
} x_scn;
|
|
|
|
struct
|
|
{
|
|
uint32_t x_tvfill; /* tv fill value */
|
|
uint16_t x_tvlen; /* length of .tv */
|
|
uint16_t x_tvran[2]; /* tv range */
|
|
} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
|
|
|
|
/******************************************
|
|
* RS/6000-specific auxent - last auxent for every external symbol
|
|
******************************************/
|
|
struct
|
|
{
|
|
union
|
|
{ /* csect length or enclosing csect */
|
|
uint64_t u64;
|
|
struct coff_ptr_struct *p;
|
|
} x_scnlen;
|
|
uint32_t x_parmhash; /* parm type hash index */
|
|
uint16_t x_snhash; /* sect num with parm hash */
|
|
uint8_t x_smtyp; /* symbol align and type */
|
|
/* 0-4 - Log 2 of alignment */
|
|
/* 5-7 - symbol type */
|
|
uint8_t x_smclas; /* storage mapping class */
|
|
uint32_t x_stab; /* dbx stab info index */
|
|
uint16_t x_snstab; /* sect num with dbx stab */
|
|
} x_csect; /* csect definition information */
|
|
|
|
/* x_smtyp values: */
|
|
|
|
#define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */
|
|
#define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */
|
|
/* Symbol type values: */
|
|
#define XTY_ER 0 /* External reference */
|
|
#define XTY_SD 1 /* Csect definition */
|
|
#define XTY_LD 2 /* Label definition */
|
|
#define XTY_CM 3 /* .BSS */
|
|
#define XTY_EM 4 /* Error message */
|
|
#define XTY_US 5 /* "Reserved for internal use" */
|
|
|
|
/* x_smclas values: */
|
|
|
|
#define XMC_PR 0 /* Read-only program code */
|
|
#define XMC_RO 1 /* Read-only constant */
|
|
#define XMC_DB 2 /* Read-only debug dictionary table */
|
|
#define XMC_TC 3 /* Read-write general TOC entry */
|
|
#define XMC_UA 4 /* Read-write unclassified */
|
|
#define XMC_RW 5 /* Read-write data */
|
|
#define XMC_GL 6 /* Read-only global linkage */
|
|
#define XMC_XO 7 /* Read-only extended operation */
|
|
#define XMC_SV 8 /* Read-only supervisor call */
|
|
#define XMC_BS 9 /* Read-write BSS */
|
|
#define XMC_DS 10 /* Read-write descriptor csect */
|
|
#define XMC_UC 11 /* Read-write unnamed Fortran common */
|
|
#define XMC_TI 12 /* Read-only traceback index csect */
|
|
#define XMC_TB 13 /* Read-only traceback table csect */
|
|
/* 14 ??? */
|
|
#define XMC_TC0 15 /* Read-write TOC anchor */
|
|
#define XMC_TD 16 /* Read-write data in TOC */
|
|
|
|
struct
|
|
{
|
|
uint64_t x_scnlen; /* Section length */
|
|
uint64_t x_nreloc; /* Number of relocation entries */
|
|
} x_sect;
|
|
};
|
|
|
|
/********************** RELOCATION DIRECTIVES **********************/
|
|
|
|
struct internal_reloc
|
|
{
|
|
bfd_vma r_vaddr; /* Virtual address of reference */
|
|
long r_symndx; /* Index into symbol table */
|
|
unsigned short r_type; /* Relocation type */
|
|
unsigned char r_size; /* Used by RS/6000 and ECOFF */
|
|
unsigned char r_extern; /* Used by ECOFF */
|
|
unsigned long r_offset; /* Used by Alpha ECOFF, SPARC, others */
|
|
};
|
|
|
|
#define IMAGE_REL_BASED_ABSOLUTE 0
|
|
#define IMAGE_REL_BASED_HIGH 1
|
|
#define IMAGE_REL_BASED_LOW 2
|
|
#define IMAGE_REL_BASED_HIGHLOW 3
|
|
#define IMAGE_REL_BASED_HIGHADJ 4
|
|
#define IMAGE_REL_BASED_MIPS_JMPADDR 5
|
|
#define IMAGE_REL_BASED_ARM_MOV32 5
|
|
#define IMAGE_REL_BASED_RISCV_HIGH20 5
|
|
#define IMAGE_REL_BASED_THUMB_MOV32 7
|
|
#define IMAGE_REL_BASED_RISCV_LOW12I 7
|
|
#define IMAGE_REL_BASED_RISCV_LOW12S 8
|
|
#define IMAGE_REL_BASED_LOONGARCH32_MARK_LA 8
|
|
#define IMAGE_REL_BASED_LOONGARCH64_MARK_LA 8
|
|
#define IMAGE_REL_BASED_MIPS_JMPADDR16 9
|
|
#define IMAGE_REL_BASED_DIR64 10
|
|
|
|
#endif /* GNU_COFF_INTERNAL_H */
|