/* IBM RS/6000 "XCOFF64" file definitions for BFD.
- Copyright (C) 2000 Free Software Foundation, Inc. */
+ Copyright (C) 2000-2021 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
/********************** FILE HEADER **********************/
-struct external_filehdr {
- char f_magic[2]; /* magic number */
- char f_nscns[2]; /* number of sections */
- char f_timdat[4]; /* time & date stamp */
- char f_symptr[8];/* file pointer to symtab */
- char f_opthdr[2]; /* sizeof(optional hdr) */
- char f_flags[2]; /* flags */
- char f_nsyms[4]; /* number of symtab entries */
+struct external_filehdr
+{
+ char f_magic[2]; /* magic number */
+ char f_nscns[2]; /* number of sections */
+ char f_timdat[4]; /* time & date stamp */
+ char f_symptr[8]; /* file pointer to symtab */
+ char f_opthdr[2]; /* sizeof(optional hdr) */
+ char f_flags[2]; /* flags */
+ char f_nsyms[4]; /* number of symtab entries */
};
- /* IBM RS/6000 */
-#define U803XTOCMAGIC 0757 /* readonly text segments and TOC, XCOFF64 */
-
-#define BADMAG(x) ((x).f_magic != U803XTOCMAGIC)
+/* IBM RS/6000. */
+#define U803XTOCMAGIC 0757 /* Aix 4.3 64-bit XCOFF */
+#define U64_TOCMAGIC 0767 /* AIX 5+ 64-bit XCOFF */
+#define BADMAG(x) ((x).f_magic != U803XTOCMAGIC && (x).f_magic != U64_TOCMAGIC)
#define FILHDR struct external_filehdr
#define FILHSZ 24
/********************** AOUT "OPTIONAL HEADER" **********************/
-
typedef struct
{
unsigned char magic[2]; /* type of file */
unsigned char vstamp[2]; /* version stamp */
unsigned char o_debugger[4]; /* reserved */
- unsigned char text_start[8]; /* base of text used for this file */
- unsigned char data_start[8]; /* base of data used for this file */
- unsigned char o_toc[8]; /* address of TOC */
+ unsigned char text_start[8]; /* base of text used for this file */
+ unsigned char data_start[8]; /* base of data used for this file */
+ unsigned char o_toc[8]; /* address of TOC */
unsigned char o_snentry[2]; /* section number of entry point */
unsigned char o_sntext[2]; /* section number of .text section */
unsigned char o_sndata[2]; /* section number of .data section */
unsigned char dsize[8]; /* initialized data " " */
unsigned char bsize[8]; /* uninitialized data " " */
unsigned char entry[8]; /* entry pt. */
- unsigned char o_maxstack[8]; /* max stack size (??) */
- unsigned char o_maxdata[8]; /* max data size (??) */
+ unsigned char o_maxstack[8]; /* max stack size (??) */
+ unsigned char o_maxdata[8]; /* max data size (??) */
unsigned char o_resv3[16]; /* reserved */
}
AOUTHDR;
#define SMALL_AOUTSZ (0)
#define AOUTHDRSZ 72
-#define RS6K_AOUTHDR_OMAGIC 0x0107 /* old: text & data writeable */
-#define RS6K_AOUTHDR_NMAGIC 0x0108 /* new: text r/o, data r/w */
-#define RS6K_AOUTHDR_ZMAGIC 0x010B /* paged: text r/o, both page-aligned */
-
-
/********************** SECTION HEADER **********************/
-
-struct external_scnhdr {
- char s_name[8]; /* section name */
- char s_paddr[8]; /* physical address, aliased s_nlib */
- char s_vaddr[8]; /* virtual address */
- char s_size[8]; /* section size */
- char s_scnptr[8]; /* file ptr to raw data for section */
- char s_relptr[8]; /* file ptr to relocation */
- char s_lnnoptr[8]; /* file ptr to line numbers */
- char s_nreloc[4]; /* number of relocation entries */
- char s_nlnno[4]; /* number of line number entries*/
- char s_flags[4]; /* flags */
- char s_pad[4]; /* padding */
+struct external_scnhdr
+{
+ char s_name[8]; /* section name */
+ char s_paddr[8]; /* physical address, aliased s_nlib */
+ char s_vaddr[8]; /* virtual address */
+ char s_size[8]; /* section size */
+ char s_scnptr[8]; /* file ptr to raw data for section */
+ char s_relptr[8]; /* file ptr to relocation */
+ char s_lnnoptr[8]; /* file ptr to line numbers */
+ char s_nreloc[4]; /* number of relocation entries */
+ char s_nlnno[4]; /* number of line number entries*/
+ char s_flags[4]; /* flags */
+ char s_pad[4]; /* padding */
};
-/*
- * names of "special" sections
- */
-#define _TEXT ".text"
-#define _DATA ".data"
-#define _BSS ".bss"
-#define _PAD ".pad"
-#define _LOADER ".loader"
-
#define SCNHDR struct external_scnhdr
#define SCNHSZ 72
-/* XCOFF uses a special .loader section with type STYP_LOADER. */
-#define STYP_LOADER 0x1000
-
-/* XCOFF uses a special .debug section with type STYP_DEBUG. */
-#define STYP_DEBUG 0x2000
-
-/* XCOFF handles line number or relocation overflow by creating
- another section header with STYP_OVRFLO set. */
-#define STYP_OVRFLO 0x8000
-
/********************** 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 external_lineno {
- union {
- char l_symndx[8];/* function name symbol index, iff l_lnno == 0*/
- char l_paddr[8]; /* (physical) address of line number */
- } l_addr;
- char l_lnno[4]; /* line number */
-};
+ 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 external_lineno
+{
+ union
+ {
+ char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
+ char l_paddr[8]; /* (physical) address of line number */
+ } l_addr;
+ char l_lnno[4]; /* line number */
+};
#define LINENO struct external_lineno
#define LINESZ 12
-
/********************** SYMBOLS **********************/
#define E_SYMNMLEN 8 /* # characters in a symbol name */
struct external_syment
{
- union {
- char e_value[8];
- } e;
+ char e_value[8];
char e_offset[4];
char e_scnum[2];
char e_type[2];
char e_numaux[1];
};
-
-
#define N_BTMASK (017)
#define N_TMASK (060)
#define N_BTSHFT (4)
#define N_TSHIFT (2)
-
-
-union external_auxent {
+union external_auxent
+{
struct {
union {
struct {
} x_fcnary;
} x_sym;
- union {
- char x_fname[E_FILNMLEN];
- struct {
- char x_zeroes[4];
- char x_offset[4];
- char x_pad[6];
- unsigned char x_ftype[1];
- unsigned char x_resv[2];
- } x_n;
+ struct {
+ union {
+ char x_fname[E_FILNMLEN];
+ struct {
+ char x_zeroes[4];
+ char x_offset[4];
+ char x_pad[6];
+ } x_n;
+ } x_n;
+ unsigned char x_ftype[1];
+ unsigned char x_resv[2];
} x_file;
struct {
#define DBXMASK 0x80 /* for dbx storage mask */
#define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK)
-/* Values for auxtype field in XCOFF64, taken from AIX 4.3 sym.h */
+/* Values for auxtype field in XCOFF64, taken from AIX 4.3 sym.h. */
#define _AUX_EXCEPT 255
#define _AUX_FCN 254
#define _AUX_SYM 253
#define _AUX_FILE 252
#define _AUX_CSECT 251
-
-
/********************** RELOCATION DIRECTIVES **********************/
-
-struct external_reloc {
+struct external_reloc
+{
char r_vaddr[8];
char r_symndx[4];
char r_size[1];
char r_type[1];
};
-
#define RELOC struct external_reloc
#define RELSZ 14
#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
/* For new sections we havn't heard of before */
#define DEFAULT_SECTION_ALIGNMENT 4
+
+/* The ldhdr structure. This appears at the start of the .loader
+ section. */
+
+struct external_ldhdr
+{
+ bfd_byte l_version[4];
+ bfd_byte l_nsyms[4];
+ bfd_byte l_nreloc[4];
+ bfd_byte l_istlen[4];
+ bfd_byte l_nimpid[4];
+ bfd_byte l_stlen[4];
+ bfd_byte l_impoff[8];
+ bfd_byte l_stoff[8];
+ bfd_byte l_symoff[8];
+ bfd_byte l_rldoff[8];
+};
+#define LDHDRSZ (56)
+
+struct external_ldsym
+{
+ bfd_byte l_value[8];
+ bfd_byte l_offset[4];
+ bfd_byte l_scnum[2];
+ bfd_byte l_smtype[1];
+ bfd_byte l_smclas[1];
+ bfd_byte l_ifile[4];
+ bfd_byte l_parm[4];
+};
+
+#define LDSYMSZ (24)
+
+struct external_ldrel
+{
+ bfd_byte l_vaddr[8];
+ bfd_byte l_rtype[2];
+ bfd_byte l_rsecnm[2];
+ bfd_byte l_symndx[4];
+};
+
+#define LDRELSZ (16)
+
+struct external_exceptab
+{
+ union {
+ bfd_byte e_symndx[4];
+ bfd_byte e_paddr[8];
+ } e_addr;
+ bfd_byte e_lang[1];
+ bfd_byte e_reason[1];
+};
+
+#define EXCEPTSZ (10)
projects / thirdparty / binutils-gdb.git / blobdiff