473 lines
15 KiB
Plaintext
473 lines
15 KiB
Plaintext
@section Architectures
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BFD keeps one atom in a BFD describing the
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architecture of the data attached to the BFD: a pointer to a
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@code{bfd_arch_info_type}.
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Pointers to structures can be requested independently of a BFD
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so that an architecture's information can be interrogated
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without access to an open BFD.
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The architecture information is provided by each architecture package.
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The set of default architectures is selected by the macro
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@code{SELECT_ARCHITECTURES}. This is normally set up in the
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@file{config/@var{target}.mt} file of your choice. If the name is not
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defined, then all the architectures supported are included.
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When BFD starts up, all the architectures are called with an
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initialize method. It is up to the architecture back end to
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insert as many items into the list of architectures as it wants to;
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generally this would be one for each machine and one for the
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default case (an item with a machine field of 0).
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BFD's idea of an architecture is implemented in @file{archures.c}.
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@subsection bfd_architecture
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@strong{Description}@*
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This enum gives the object file's CPU architecture, in a
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global sense---i.e., what processor family does it belong to?
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Another field indicates which processor within
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the family is in use. The machine gives a number which
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distinguishes different versions of the architecture,
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containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
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and 68020 and 68030 for Motorola 68020 and 68030.
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@example
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enum bfd_architecture
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@{
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bfd_arch_unknown, /* File arch not known. */
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bfd_arch_obscure, /* Arch known, not one of these. */
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bfd_arch_m68k, /* Motorola 68xxx */
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#define bfd_mach_m68000 1
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#define bfd_mach_m68008 2
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#define bfd_mach_m68010 3
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#define bfd_mach_m68020 4
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#define bfd_mach_m68030 5
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#define bfd_mach_m68040 6
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#define bfd_mach_m68060 7
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#define bfd_mach_cpu32 8
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#define bfd_mach_mcf5200 9
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#define bfd_mach_mcf5206e 10
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#define bfd_mach_mcf5307 11
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#define bfd_mach_mcf5407 12
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bfd_arch_vax, /* DEC Vax */
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bfd_arch_i960, /* Intel 960 */
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/* The order of the following is important.
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lower number indicates a machine type that
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only accepts a subset of the instructions
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available to machines with higher numbers.
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The exception is the "ca", which is
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incompatible with all other machines except
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"core". */
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#define bfd_mach_i960_core 1
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#define bfd_mach_i960_ka_sa 2
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#define bfd_mach_i960_kb_sb 3
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#define bfd_mach_i960_mc 4
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#define bfd_mach_i960_xa 5
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#define bfd_mach_i960_ca 6
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#define bfd_mach_i960_jx 7
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#define bfd_mach_i960_hx 8
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bfd_arch_or32, /* OpenRISC 32 */
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bfd_arch_a29k, /* AMD 29000 */
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bfd_arch_sparc, /* SPARC */
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#define bfd_mach_sparc 1
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/* The difference between v8plus and v9 is that v9 is a true 64 bit env. */
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#define bfd_mach_sparc_sparclet 2
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#define bfd_mach_sparc_sparclite 3
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#define bfd_mach_sparc_v8plus 4
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#define bfd_mach_sparc_v8plusa 5 /* with ultrasparc add'ns. */
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#define bfd_mach_sparc_sparclite_le 6
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#define bfd_mach_sparc_v9 7
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#define bfd_mach_sparc_v9a 8 /* with ultrasparc add'ns. */
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#define bfd_mach_sparc_v8plusb 9 /* with cheetah add'ns. */
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#define bfd_mach_sparc_v9b 10 /* with cheetah add'ns. */
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/* Nonzero if MACH has the v9 instruction set. */
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#define bfd_mach_sparc_v9_p(mach) \
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((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
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&& (mach) != bfd_mach_sparc_sparclite_le)
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bfd_arch_mips, /* MIPS Rxxxx */
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#define bfd_mach_mips3000 3000
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#define bfd_mach_mips3900 3900
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#define bfd_mach_mips4000 4000
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#define bfd_mach_mips4010 4010
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#define bfd_mach_mips4100 4100
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#define bfd_mach_mips4111 4111
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#define bfd_mach_mips4300 4300
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#define bfd_mach_mips4400 4400
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#define bfd_mach_mips4600 4600
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#define bfd_mach_mips4650 4650
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#define bfd_mach_mips5000 5000
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#define bfd_mach_mips6000 6000
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#define bfd_mach_mips8000 8000
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#define bfd_mach_mips10000 10000
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#define bfd_mach_mips12000 12000
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#define bfd_mach_mips16 16
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#define bfd_mach_mips5 5
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#define bfd_mach_mips_sb1 12310201 /* octal 'SB', 01 */
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#define bfd_mach_mipsisa32 32
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#define bfd_mach_mipsisa64 64
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bfd_arch_i386, /* Intel 386 */
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#define bfd_mach_i386_i386 0
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#define bfd_mach_i386_i8086 1
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#define bfd_mach_i386_i386_intel_syntax 2
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#define bfd_mach_x86_64 3
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#define bfd_mach_x86_64_intel_syntax 4
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bfd_arch_we32k, /* AT&T WE32xxx */
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bfd_arch_tahoe, /* CCI/Harris Tahoe */
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bfd_arch_i860, /* Intel 860 */
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bfd_arch_i370, /* IBM 360/370 Mainframes */
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bfd_arch_romp, /* IBM ROMP PC/RT */
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bfd_arch_alliant, /* Alliant */
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bfd_arch_convex, /* Convex */
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bfd_arch_m88k, /* Motorola 88xxx */
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bfd_arch_pyramid, /* Pyramid Technology */
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bfd_arch_h8300, /* Hitachi H8/300 */
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#define bfd_mach_h8300 1
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#define bfd_mach_h8300h 2
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#define bfd_mach_h8300s 3
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bfd_arch_pdp11, /* DEC PDP-11 */
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bfd_arch_powerpc, /* PowerPC */
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#define bfd_mach_ppc 0
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#define bfd_mach_ppc64 1
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#define bfd_mach_ppc_403 403
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#define bfd_mach_ppc_403gc 4030
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#define bfd_mach_ppc_505 505
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#define bfd_mach_ppc_601 601
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#define bfd_mach_ppc_602 602
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#define bfd_mach_ppc_603 603
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#define bfd_mach_ppc_ec603e 6031
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#define bfd_mach_ppc_604 604
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#define bfd_mach_ppc_620 620
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#define bfd_mach_ppc_630 630
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#define bfd_mach_ppc_750 750
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#define bfd_mach_ppc_860 860
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#define bfd_mach_ppc_a35 35
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#define bfd_mach_ppc_rs64ii 642
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#define bfd_mach_ppc_rs64iii 643
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#define bfd_mach_ppc_7400 7400
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bfd_arch_rs6000, /* IBM RS/6000 */
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#define bfd_mach_rs6k 0
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#define bfd_mach_rs6k_rs1 6001
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#define bfd_mach_rs6k_rsc 6003
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#define bfd_mach_rs6k_rs2 6002
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bfd_arch_hppa, /* HP PA RISC */
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bfd_arch_d10v, /* Mitsubishi D10V */
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#define bfd_mach_d10v 0
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#define bfd_mach_d10v_ts2 2
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#define bfd_mach_d10v_ts3 3
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bfd_arch_d30v, /* Mitsubishi D30V */
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bfd_arch_m68hc11, /* Motorola 68HC11 */
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bfd_arch_m68hc12, /* Motorola 68HC12 */
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bfd_arch_z8k, /* Zilog Z8000 */
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#define bfd_mach_z8001 1
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#define bfd_mach_z8002 2
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bfd_arch_h8500, /* Hitachi H8/500 */
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bfd_arch_sh, /* Hitachi SH */
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#define bfd_mach_sh 0
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#define bfd_mach_sh2 0x20
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#define bfd_mach_sh_dsp 0x2d
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#define bfd_mach_sh3 0x30
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#define bfd_mach_sh3_dsp 0x3d
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#define bfd_mach_sh3e 0x3e
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#define bfd_mach_sh4 0x40
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#define bfd_mach_sh5 0x50
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bfd_arch_alpha, /* Dec Alpha */
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#define bfd_mach_alpha_ev4 0x10
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#define bfd_mach_alpha_ev5 0x20
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#define bfd_mach_alpha_ev6 0x30
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bfd_arch_arm, /* Advanced Risc Machines ARM. */
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#define bfd_mach_arm_2 1
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#define bfd_mach_arm_2a 2
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#define bfd_mach_arm_3 3
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#define bfd_mach_arm_3M 4
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#define bfd_mach_arm_4 5
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#define bfd_mach_arm_4T 6
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#define bfd_mach_arm_5 7
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#define bfd_mach_arm_5T 8
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#define bfd_mach_arm_5TE 9
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#define bfd_mach_arm_XScale 10
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bfd_arch_ns32k, /* National Semiconductors ns32000 */
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bfd_arch_w65, /* WDC 65816 */
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bfd_arch_tic30, /* Texas Instruments TMS320C30 */
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bfd_arch_tic54x, /* Texas Instruments TMS320C54X */
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bfd_arch_tic80, /* TI TMS320c80 (MVP) */
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bfd_arch_v850, /* NEC V850 */
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#define bfd_mach_v850 0
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#define bfd_mach_v850e 'E'
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#define bfd_mach_v850ea 'A'
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bfd_arch_arc, /* ARC Cores */
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#define bfd_mach_arc_5 0
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#define bfd_mach_arc_6 1
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#define bfd_mach_arc_7 2
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#define bfd_mach_arc_8 3
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bfd_arch_m32r, /* Mitsubishi M32R/D */
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#define bfd_mach_m32r 0 /* For backwards compatibility. */
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#define bfd_mach_m32rx 'x'
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bfd_arch_mn10200, /* Matsushita MN10200 */
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bfd_arch_mn10300, /* Matsushita MN10300 */
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#define bfd_mach_mn10300 300
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#define bfd_mach_am33 330
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bfd_arch_fr30,
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#define bfd_mach_fr30 0x46523330
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bfd_arch_mcore,
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bfd_arch_ia64, /* HP/Intel ia64 */
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#define bfd_mach_ia64_elf64 0
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#define bfd_mach_ia64_elf32 1
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bfd_arch_pj,
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bfd_arch_avr, /* Atmel AVR microcontrollers. */
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#define bfd_mach_avr1 1
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#define bfd_mach_avr2 2
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#define bfd_mach_avr3 3
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#define bfd_mach_avr4 4
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#define bfd_mach_avr5 5
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bfd_arch_cris, /* Axis CRIS */
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bfd_arch_s390, /* IBM s390 */
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#define bfd_mach_s390_esa 0
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#define bfd_mach_s390_esame 1
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bfd_arch_openrisc, /* OpenRISC */
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bfd_arch_mmix, /* Donald Knuth's educational processor. */
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bfd_arch_xstormy16,
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#define bfd_mach_xstormy16 0
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bfd_arch_last
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@};
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@end example
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@subsection bfd_arch_info
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@strong{Description}@*
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This structure contains information on architectures for use
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within BFD.
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@example
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typedef struct bfd_arch_info
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@{
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int bits_per_word;
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int bits_per_address;
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int bits_per_byte;
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enum bfd_architecture arch;
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unsigned long mach;
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const char *arch_name;
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const char *printable_name;
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unsigned int section_align_power;
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/* True if this is the default machine for the architecture. */
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boolean the_default;
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const struct bfd_arch_info * (*compatible)
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PARAMS ((const struct bfd_arch_info *a,
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const struct bfd_arch_info *b));
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boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
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const struct bfd_arch_info *next;
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@}
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bfd_arch_info_type;
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@end example
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@findex bfd_printable_name
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@subsubsection @code{bfd_printable_name}
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@strong{Synopsis}
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@example
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const char *bfd_printable_name(bfd *abfd);
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@end example
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@strong{Description}@*
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Return a printable string representing the architecture and machine
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from the pointer to the architecture info structure.
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@findex bfd_scan_arch
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@subsubsection @code{bfd_scan_arch}
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@strong{Synopsis}
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@example
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const bfd_arch_info_type *bfd_scan_arch(const char *string);
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@end example
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@strong{Description}@*
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Figure out if BFD supports any cpu which could be described with
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the name @var{string}. Return a pointer to an @code{arch_info}
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structure if a machine is found, otherwise NULL.
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@findex bfd_arch_list
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@subsubsection @code{bfd_arch_list}
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@strong{Synopsis}
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@example
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const char **bfd_arch_list(void);
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@end example
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@strong{Description}@*
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Return a freshly malloced NULL-terminated vector of the names
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of all the valid BFD architectures. Do not modify the names.
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@findex bfd_arch_get_compatible
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@subsubsection @code{bfd_arch_get_compatible}
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@strong{Synopsis}
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@example
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const bfd_arch_info_type *bfd_arch_get_compatible(
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const bfd *abfd,
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const bfd *bbfd);
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@end example
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@strong{Description}@*
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Determine whether two BFDs'
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architectures and machine types are compatible. Calculates
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the lowest common denominator between the two architectures
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and machine types implied by the BFDs and returns a pointer to
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an @code{arch_info} structure describing the compatible machine.
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@findex bfd_default_arch_struct
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@subsubsection @code{bfd_default_arch_struct}
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@strong{Description}@*
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The @code{bfd_default_arch_struct} is an item of
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@code{bfd_arch_info_type} which has been initialized to a fairly
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generic state. A BFD starts life by pointing to this
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structure, until the correct back end has determined the real
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architecture of the file.
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@example
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extern const bfd_arch_info_type bfd_default_arch_struct;
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@end example
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@findex bfd_set_arch_info
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@subsubsection @code{bfd_set_arch_info}
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@strong{Synopsis}
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@example
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void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
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@end example
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@strong{Description}@*
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Set the architecture info of @var{abfd} to @var{arg}.
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@findex bfd_default_set_arch_mach
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@subsubsection @code{bfd_default_set_arch_mach}
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@strong{Synopsis}
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@example
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boolean bfd_default_set_arch_mach(bfd *abfd,
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enum bfd_architecture arch,
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unsigned long mach);
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@end example
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@strong{Description}@*
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Set the architecture and machine type in BFD @var{abfd}
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to @var{arch} and @var{mach}. Find the correct
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pointer to a structure and insert it into the @code{arch_info}
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pointer.
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@findex bfd_get_arch
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@subsubsection @code{bfd_get_arch}
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@strong{Synopsis}
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@example
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enum bfd_architecture bfd_get_arch(bfd *abfd);
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@end example
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@strong{Description}@*
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Return the enumerated type which describes the BFD @var{abfd}'s
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architecture.
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@findex bfd_get_mach
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@subsubsection @code{bfd_get_mach}
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@strong{Synopsis}
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@example
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unsigned long bfd_get_mach(bfd *abfd);
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@end example
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@strong{Description}@*
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Return the long type which describes the BFD @var{abfd}'s
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machine.
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@findex bfd_arch_bits_per_byte
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@subsubsection @code{bfd_arch_bits_per_byte}
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@strong{Synopsis}
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@example
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unsigned int bfd_arch_bits_per_byte(bfd *abfd);
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@end example
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@strong{Description}@*
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Return the number of bits in one of the BFD @var{abfd}'s
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architecture's bytes.
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@findex bfd_arch_bits_per_address
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@subsubsection @code{bfd_arch_bits_per_address}
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@strong{Synopsis}
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@example
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unsigned int bfd_arch_bits_per_address(bfd *abfd);
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@end example
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@strong{Description}@*
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Return the number of bits in one of the BFD @var{abfd}'s
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architecture's addresses.
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@findex bfd_default_compatible
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@subsubsection @code{bfd_default_compatible}
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@strong{Synopsis}
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@example
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const bfd_arch_info_type *bfd_default_compatible
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(const bfd_arch_info_type *a,
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const bfd_arch_info_type *b);
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@end example
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@strong{Description}@*
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The default function for testing for compatibility.
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@findex bfd_default_scan
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@subsubsection @code{bfd_default_scan}
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@strong{Synopsis}
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@example
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boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
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@end example
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@strong{Description}@*
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The default function for working out whether this is an
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architecture hit and a machine hit.
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@findex bfd_get_arch_info
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@subsubsection @code{bfd_get_arch_info}
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@strong{Synopsis}
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@example
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const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
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@end example
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@strong{Description}@*
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Return the architecture info struct in @var{abfd}.
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@findex bfd_lookup_arch
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@subsubsection @code{bfd_lookup_arch}
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@strong{Synopsis}
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@example
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const bfd_arch_info_type *bfd_lookup_arch
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(enum bfd_architecture
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arch,
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unsigned long machine);
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@end example
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@strong{Description}@*
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Look for the architecure info structure which matches the
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arguments @var{arch} and @var{machine}. A machine of 0 matches the
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machine/architecture structure which marks itself as the
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default.
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@findex bfd_printable_arch_mach
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@subsubsection @code{bfd_printable_arch_mach}
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|
@strong{Synopsis}
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|
@example
|
|
const char *bfd_printable_arch_mach
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|
(enum bfd_architecture arch, unsigned long machine);
|
|
@end example
|
|
@strong{Description}@*
|
|
Return a printable string representing the architecture and
|
|
machine type.
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|
|
|
This routine is depreciated.
|
|
|
|
@findex bfd_octets_per_byte
|
|
@subsubsection @code{bfd_octets_per_byte}
|
|
@strong{Synopsis}
|
|
@example
|
|
unsigned int bfd_octets_per_byte(bfd *abfd);
|
|
@end example
|
|
@strong{Description}@*
|
|
Return the number of octets (8-bit quantities) per target byte
|
|
(minimum addressable unit). In most cases, this will be one, but some
|
|
DSP targets have 16, 32, or even 48 bits per byte.
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|
|
|
@findex bfd_arch_mach_octets_per_byte
|
|
@subsubsection @code{bfd_arch_mach_octets_per_byte}
|
|
@strong{Synopsis}
|
|
@example
|
|
unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
|
|
unsigned long machine);
|
|
@end example
|
|
@strong{Description}@*
|
|
See bfd_octets_per_byte.
|
|
|
|
This routine is provided for those cases where a bfd * is not
|
|
available
|
|
|