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@ -1,6 +1,6 @@ |
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/* BFD back-end data structures for a.out (and similar) files.
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Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
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2000, 2001, 2002, 2003 |
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2000, 2001, 2002, 2003, 2004 |
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Free Software Foundation, Inc. |
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Written by Cygnus Support. |
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@ -249,73 +249,74 @@ struct aout_backend_data |
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struct internal_exec |
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{ |
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long a_info; /* Magic number and flags, packed */ |
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bfd_vma a_text; /* length of text, in bytes */ |
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bfd_vma a_data; /* length of data, in bytes */ |
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bfd_vma a_bss; /* length of uninitialized data area in mem */ |
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bfd_vma a_syms; /* length of symbol table data in file */ |
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bfd_vma a_entry; /* start address */ |
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bfd_vma a_trsize; /* length of text's relocation info, in bytes */ |
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bfd_vma a_drsize; /* length of data's relocation info, in bytes */ |
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/* Added for i960 */ |
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bfd_vma a_tload; /* Text runtime load address */ |
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bfd_vma a_dload; /* Data runtime load address */ |
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unsigned char a_talign; /* Alignment of text segment */ |
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unsigned char a_dalign; /* Alignment of data segment */ |
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unsigned char a_balign; /* Alignment of bss segment */ |
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char a_relaxable; /* Enough info for linker relax */ |
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long a_info; /* Magic number and flags, packed. */ |
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bfd_vma a_text; /* Length of text, in bytes. */ |
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bfd_vma a_data; /* Length of data, in bytes. */ |
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bfd_vma a_bss; /* Length of uninitialized data area in mem. */ |
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bfd_vma a_syms; /* Length of symbol table data in file. */ |
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bfd_vma a_entry; /* Start address. */ |
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bfd_vma a_trsize; /* Length of text's relocation info, in bytes. */ |
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bfd_vma a_drsize; /* Length of data's relocation info, in bytes. */ |
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/* Added for i960 */ |
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bfd_vma a_tload; /* Text runtime load address. */ |
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bfd_vma a_dload; /* Data runtime load address. */ |
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unsigned char a_talign; /* Alignment of text segment. */ |
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unsigned char a_dalign; /* Alignment of data segment. */ |
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unsigned char a_balign; /* Alignment of bss segment. */ |
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char a_relaxable; /* Enough info for linker relax. */ |
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}; |
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/* Magic number is written
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< MSB > |
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3130292827262524232221201918171615141312111009080706050403020100 |
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< FLAGS >< MACHINE TYPE >< MAGIC NUMBER > |
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*/ |
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< MSB > |
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3130292827262524232221201918171615141312111009080706050403020100 |
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< FLAGS >< MACHINE TYPE >< MAGIC NUMBER > */ |
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/* Magic number for NetBSD is
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<MSB > |
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3130292827262524232221201918171615141312111009080706050403020100 |
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< FLAGS >< MACHINE TYPE >< MAGIC NUMBER > |
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*/ |
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<MSB > |
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3130292827262524232221201918171615141312111009080706050403020100 |
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< FLAGS >< MACHINE TYPE >< MAGIC NUMBER > */ |
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enum machine_type { |
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enum machine_type |
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{ |
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M_UNKNOWN = 0, |
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M_68010 = 1, |
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M_68020 = 2, |
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M_SPARC = 3, |
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/* Skip a bunch so we don't run into any of SUN's numbers. */ |
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/* Make these up for the ns32k. */ |
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M_NS32032 = (64), /* ns32032 running ? */ |
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M_NS32532 = (64 + 5), /* ns32532 running mach */ |
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M_NS32032 = (64), /* NS32032 running ? */ |
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M_NS32532 = (64 + 5), /* NS32532 running mach. */ |
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M_386 = 100, |
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M_29K = 101, /* AMD 29000 */ |
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M_386_DYNIX = 102, /* Sequent running dynix */ |
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M_ARM = 103, /* Advanced Risc Machines ARM */ |
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M_SPARCLET = 131, /* SPARClet = M_SPARC + 128 */ |
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M_386_NETBSD = 134, /* NetBSD/i386 binary */ |
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M_68K_NETBSD = 135, /* NetBSD/m68k binary */ |
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M_68K4K_NETBSD = 136, /* NetBSD/m68k4k binary */ |
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M_532_NETBSD = 137, /* NetBSD/ns32k binary */ |
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M_SPARC_NETBSD = 138, /* NetBSD/sparc binary */ |
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M_PMAX_NETBSD = 139, /* NetBSD/pmax (MIPS little-endian) binary */ |
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M_VAX_NETBSD = 140, /* NetBSD/vax binary */ |
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M_ALPHA_NETBSD = 141, /* NetBSD/alpha binary */ |
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M_ARM6_NETBSD = 143, /* NetBSD/arm32 binary */ |
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M_SPARCLET_1 = 147, /* 0x93, reserved */ |
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M_VAX4K_NETBSD = 150, /* NetBSD/vax 4K pages binary */ |
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M_MIPS1 = 151, /* MIPS R2000/R3000 binary */ |
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M_MIPS2 = 152, /* MIPS R4000/R6000 binary */ |
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M_SPARCLET_2 = 163, /* 0xa3, reserved */ |
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M_SPARCLET_3 = 179, /* 0xb3, reserved */ |
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M_SPARCLET_4 = 195, /* 0xc3, reserved */ |
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M_HP200 = 200, /* HP 200 (68010) BSD binary */ |
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M_HP300 = (300 % 256), /* HP 300 (68020+68881) BSD binary */ |
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M_HPUX = (0x20c % 256), /* HP 200/300 HPUX binary */ |
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M_SPARCLET_5 = 211, /* 0xd3, reserved */ |
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M_SPARCLET_6 = 227, /* 0xe3, reserved */ |
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/* M_SPARCLET_7 = 243 / * 0xf3, reserved */ |
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M_29K = 101, /* AMD 29000. */ |
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M_386_DYNIX = 102, /* Sequent running dynix. */ |
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M_ARM = 103, /* Advanced Risc Machines ARM. */ |
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M_SPARCLET = 131, /* SPARClet = M_SPARC + 128. */ |
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M_386_NETBSD = 134, /* NetBSD/i386 binary. */ |
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M_68K_NETBSD = 135, /* NetBSD/m68k binary. */ |
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M_68K4K_NETBSD = 136, /* NetBSD/m68k4k binary. */ |
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M_532_NETBSD = 137, /* NetBSD/ns32k binary. */ |
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M_SPARC_NETBSD = 138, /* NetBSD/sparc binary. */ |
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M_PMAX_NETBSD = 139, /* NetBSD/pmax (MIPS little-endian) binary. */ |
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M_VAX_NETBSD = 140, /* NetBSD/vax binary. */ |
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M_ALPHA_NETBSD = 141, /* NetBSD/alpha binary. */ |
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M_ARM6_NETBSD = 143, /* NetBSD/arm32 binary. */ |
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M_SPARCLET_1 = 147, /* 0x93, reserved. */ |
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M_VAX4K_NETBSD = 150, /* NetBSD/vax 4K pages binary. */ |
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M_MIPS1 = 151, /* MIPS R2000/R3000 binary. */ |
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M_MIPS2 = 152, /* MIPS R4000/R6000 binary. */ |
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M_SPARC64_NETBSD = 156, /* NetBSD/sparc64 binary. */ |
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M_X86_64_NETBSD = 157, /* NetBSD/amd64 binary. */ |
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M_SPARCLET_2 = 163, /* 0xa3, reserved. */ |
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M_SPARCLET_3 = 179, /* 0xb3, reserved. */ |
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M_SPARCLET_4 = 195, /* 0xc3, reserved. */ |
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M_HP200 = 200, /* HP 200 (68010) BSD binary. */ |
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M_HP300 = (300 % 256), /* HP 300 (68020+68881) BSD binary. */ |
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M_HPUX = (0x20c % 256), /* HP 200/300 HPUX binary. */ |
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M_SPARCLET_5 = 211, /* 0xd3, reserved. */ |
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M_SPARCLET_6 = 227, /* 0xe3, reserved. */ |
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/*M_SPARCLET_7 = 243 / * 0xf3, reserved. */ |
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M_SPARCLITE_LE = 243, |
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M_CRIS = 255 /* Axis CRIS binary. */ |
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M_CRIS = 255 /* Axis CRIS binary. */ |
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}; |
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#define N_DYNAMIC(exec) ((exec).a_info & 0x80000000) |
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@ -362,7 +363,8 @@ enum machine_type { |
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((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24)) |
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#endif |
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typedef struct aout_symbol { |
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typedef struct aout_symbol |
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{ |
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asymbol symbol; |
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short desc; |
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char other; |
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@ -373,9 +375,10 @@ typedef struct aout_symbol { |
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Various things depend on this struct being around any time an a.out |
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file is being handled. An example is dbxread.c in GDB. */ |
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struct aoutdata { |
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struct internal_exec *hdr; /* exec file header */ |
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aout_symbol_type *symbols; /* symtab for input bfd */ |
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struct aoutdata |
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{ |
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struct internal_exec *hdr; /* Exec file header. */ |
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aout_symbol_type *symbols; /* Symtab for input bfd. */ |
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/* For ease, we do this. */ |
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asection *textsec; |
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@ -445,30 +448,31 @@ struct aoutdata { |
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bfd_vma *local_got_offsets; |
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}; |
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struct aout_data_struct { |
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struct aoutdata a; |
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struct internal_exec e; |
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struct aout_data_struct |
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{ |
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struct aoutdata a; |
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struct internal_exec e; |
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}; |
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#define adata(bfd) ((bfd)->tdata.aout_data->a) |
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#define exec_hdr(bfd) (adata(bfd).hdr) |
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#define obj_aout_symbols(bfd) (adata(bfd).symbols) |
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#define obj_textsec(bfd) (adata(bfd).textsec) |
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#define obj_datasec(bfd) (adata(bfd).datasec) |
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#define obj_bsssec(bfd) (adata(bfd).bsssec) |
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#define obj_sym_filepos(bfd) (adata(bfd).sym_filepos) |
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#define obj_str_filepos(bfd) (adata(bfd).str_filepos) |
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#define obj_reloc_entry_size(bfd) (adata(bfd).reloc_entry_size) |
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#define obj_symbol_entry_size(bfd) (adata(bfd).symbol_entry_size) |
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#define obj_aout_subformat(bfd) (adata(bfd).subformat) |
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#define obj_aout_external_syms(bfd) (adata(bfd).external_syms) |
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#define obj_aout_external_sym_count(bfd) (adata(bfd).external_sym_count) |
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#define obj_aout_sym_window(bfd) (adata(bfd).sym_window) |
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#define obj_aout_external_strings(bfd) (adata(bfd).external_strings) |
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#define obj_aout_external_string_size(bfd) (adata(bfd).external_string_size) |
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#define obj_aout_string_window(bfd) (adata(bfd).string_window) |
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#define obj_aout_sym_hashes(bfd) (adata(bfd).sym_hashes) |
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#define obj_aout_dynamic_info(bfd) (adata(bfd).dynamic_info) |
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#define adata(bfd) ((bfd)->tdata.aout_data->a) |
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#define exec_hdr(bfd) (adata (bfd).hdr) |
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#define obj_aout_symbols(bfd) (adata (bfd).symbols) |
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#define obj_textsec(bfd) (adata (bfd).textsec) |
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#define obj_datasec(bfd) (adata (bfd).datasec) |
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#define obj_bsssec(bfd) (adata (bfd).bsssec) |
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#define obj_sym_filepos(bfd) (adata (bfd).sym_filepos) |
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#define obj_str_filepos(bfd) (adata (bfd).str_filepos) |
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#define obj_reloc_entry_size(bfd) (adata (bfd).reloc_entry_size) |
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#define obj_symbol_entry_size(bfd) (adata (bfd).symbol_entry_size) |
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#define obj_aout_subformat(bfd) (adata (bfd).subformat) |
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#define obj_aout_external_syms(bfd) (adata (bfd).external_syms) |
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#define obj_aout_external_sym_count(bfd) (adata (bfd).external_sym_count) |
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#define obj_aout_sym_window(bfd) (adata (bfd).sym_window) |
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#define obj_aout_external_strings(bfd) (adata (bfd).external_strings) |
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#define obj_aout_external_string_size(bfd) (adata (bfd).external_string_size) |
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#define obj_aout_string_window(bfd) (adata (bfd).string_window) |
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#define obj_aout_sym_hashes(bfd) (adata (bfd).sym_hashes) |
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#define obj_aout_dynamic_info(bfd) (adata (bfd).dynamic_info) |
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/* We take the address of the first element of an asymbol to ensure that the
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macro is only ever applied to an asymbol. */ |
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@ -630,7 +634,7 @@ extern bfd_boolean NAME(aout,bfd_free_cached_info) |
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#ifndef WRITE_HEADERS |
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#define WRITE_HEADERS(abfd, execp) \ |
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{ \ |
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bfd_size_type text_size; /* dummy vars */ \ |
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bfd_size_type text_size; /* Dummy vars. */ \ |
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file_ptr text_end; \ |
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if (adata(abfd).magic == undecided_magic) \ |
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NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end); \ |
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@ -645,7 +649,7 @@ extern bfd_boolean NAME(aout,bfd_free_cached_info) |
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NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes); \ |
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\ |
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if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 \ |
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|| bfd_bwrite ((PTR) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, \ |
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|| bfd_bwrite ((PTR) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE,\ |
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abfd) != EXEC_BYTES_SIZE) \ |
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return FALSE; \ |
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/* Now write out reloc info, followed by syms and strings. */ \ |
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@ -660,12 +664,12 @@ extern bfd_boolean NAME(aout,bfd_free_cached_info) |
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return FALSE; \ |
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} \ |
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\ |
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if (bfd_seek (abfd, (file_ptr) (N_TRELOFF(*execp)), SEEK_SET) != 0) \ |
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if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (*execp)), SEEK_SET) != 0) \ |
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return FALSE; \ |
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if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd))) \ |
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return FALSE; \ |
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\ |
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if (bfd_seek (abfd, (file_ptr) (N_DRELOFF(*execp)), SEEK_SET) != 0) \ |
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if (bfd_seek (abfd, (file_ptr) (N_DRELOFF (*execp)), SEEK_SET) != 0) \ |
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return FALSE; \ |
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if (!NAME(aout,squirt_out_relocs) (abfd, obj_datasec (abfd))) \ |
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return FALSE; \ |
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