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v2.39
include/coff/alpha.h
386 строк
11 KB
Ziyao
Import source from binutils
18 сен 2022, 18:55
18 сен 2022, 18:55
3605144
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/* ECOFF support on Alpha machines. coff/ecoff.h must be included before this file. Copyright (C) 2001-2022 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 { unsigned char f_magic[2]; /* magic number */ unsigned char f_nscns[2]; /* number of sections */ unsigned char f_timdat[4]; /* time & date stamp */ unsigned char f_symptr[8]; /* file pointer to symtab */ unsigned char f_nsyms[4]; /* number of symtab entries */ unsigned char f_opthdr[2]; /* sizeof(optional hdr) */ unsigned char f_flags[2]; /* flags */ }; /* Magic numbers are defined in coff/ecoff.h. */ #define ALPHA_ECOFF_BADMAG(x) \ ((x).f_magic != ALPHA_MAGIC && (x).f_magic != ALPHA_MAGIC_BSD) #define ALPHA_ECOFF_COMPRESSEDMAG(x) \ ((x).f_magic == ALPHA_MAGIC_COMPRESSED) /* The object type is encoded in the f_flags. */ #define F_ALPHA_OBJECT_TYPE_MASK 0x3000 #define F_ALPHA_NO_SHARED 0x1000 #define F_ALPHA_SHARABLE 0x2000 #define F_ALPHA_CALL_SHARED 0x3000 #define FILHDR struct external_filehdr #define FILHSZ 24 /********************** AOUT "OPTIONAL HEADER" **********************/ typedef struct external_aouthdr { unsigned char magic[2]; /* type of file */ unsigned char vstamp[2]; /* version stamp */ unsigned char bldrev[2]; /* ?? */ unsigned char padding[2]; /* pad to quadword boundary */ unsigned char tsize[8]; /* text size in bytes */ unsigned char dsize[8]; /* initialized data " " */ unsigned char bsize[8]; /* uninitialized data " " */ unsigned char entry[8]; /* entry pt. */ 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 bss_start[8]; /* base of bss used for this file */ unsigned char gprmask[4]; /* bitmask of general registers used */ unsigned char fprmask[4]; /* bitmask of floating point registers used */ unsigned char gp_value[8]; /* value for gp register */ } AOUTHDR; /* compute size of a header */ #define AOUTSZ 80 #define AOUTHDRSZ 80 /********************** SECTION HEADER **********************/ struct external_scnhdr { unsigned char s_name[8]; /* section name */ unsigned char s_paddr[8]; /* physical address, aliased s_nlib */ unsigned char s_vaddr[8]; /* virtual address */ unsigned char s_size[8]; /* section size */ unsigned char s_scnptr[8]; /* file ptr to raw data for section */ unsigned char s_relptr[8]; /* file ptr to relocation */ unsigned char s_lnnoptr[8]; /* file ptr to line numbers */ unsigned char s_nreloc[2]; /* number of relocation entries */ unsigned char s_nlnno[2]; /* number of line number entries*/ unsigned char s_flags[4]; /* flags */ }; #define SCNHDR struct external_scnhdr #define SCNHSZ 64 /********************** RELOCATION DIRECTIVES **********************/ struct external_reloc { unsigned char r_vaddr[8]; unsigned char r_symndx[4]; unsigned char r_bits[4]; }; #define RELOC struct external_reloc #define RELSZ 16 /* Constants to unpack the r_bits field. The Alpha seems to always be little endian, so I haven't bothered to define big endian variants of these. */ #define RELOC_BITS0_TYPE_LITTLE 0xff #define RELOC_BITS0_TYPE_SH_LITTLE 0 #define RELOC_BITS1_EXTERN_LITTLE 0x01 #define RELOC_BITS1_OFFSET_LITTLE 0x7e #define RELOC_BITS1_OFFSET_SH_LITTLE 1 #define RELOC_BITS1_RESERVED_LITTLE 0x80 #define RELOC_BITS1_RESERVED_SH_LITTLE 7 #define RELOC_BITS2_RESERVED_LITTLE 0xff #define RELOC_BITS2_RESERVED_SH_LEFT_LITTLE 1 #define RELOC_BITS3_RESERVED_LITTLE 0x03 #define RELOC_BITS3_RESERVED_SH_LEFT_LITTLE 9 #define RELOC_BITS3_SIZE_LITTLE 0xfc #define RELOC_BITS3_SIZE_SH_LITTLE 2 /* The r_type field in a reloc is one of the following values. */ #define ALPHA_R_IGNORE 0 #define ALPHA_R_REFLONG 1 #define ALPHA_R_REFQUAD 2 #define ALPHA_R_GPREL32 3 #define ALPHA_R_LITERAL 4 #define ALPHA_R_LITUSE 5 #define ALPHA_R_GPDISP 6 #define ALPHA_R_BRADDR 7 #define ALPHA_R_HINT 8 #define ALPHA_R_SREL16 9 #define ALPHA_R_SREL32 10 #define ALPHA_R_SREL64 11 #define ALPHA_R_OP_PUSH 12 #define ALPHA_R_OP_STORE 13 #define ALPHA_R_OP_PSUB 14 #define ALPHA_R_OP_PRSHIFT 15 #define ALPHA_R_GPVALUE 16 #define ALPHA_R_GPRELHIGH 17 #define ALPHA_R_GPRELLOW 18 #define ALPHA_R_IMMED 19 /* Overloaded reloc value used by Net- and OpenBSD. */ #define ALPHA_R_LITERALSLEAZY 17 /* With ALPHA_R_LITUSE, the r_size field is one of the following values. */ #define ALPHA_R_LU_BASE 1 #define ALPHA_R_LU_BYTOFF 2 #define ALPHA_R_LU_JSR 3 /* With ALPHA_R_IMMED, the r_size field is one of the following values. */ #define ALPHA_R_IMMED_GP_16 1 #define ALPHA_R_IMMED_GP_HI32 2 #define ALPHA_R_IMMED_SCN_HI32 3 #define ALPHA_R_IMMED_BR_HI32 4 #define ALPHA_R_IMMED_LO32 5 /********************** SYMBOLIC INFORMATION **********************/ /* Written by John Gilmore. */ /* ECOFF uses COFF-like section structures, but its own symbol format. This file defines the symbol format in fields whose size and alignment will not vary on different host systems. */ /* File header as a set of bytes */ struct hdr_ext { unsigned char h_magic[2]; unsigned char h_vstamp[2]; unsigned char h_ilineMax[4]; unsigned char h_idnMax[4]; unsigned char h_ipdMax[4]; unsigned char h_isymMax[4]; unsigned char h_ioptMax[4]; unsigned char h_iauxMax[4]; unsigned char h_issMax[4]; unsigned char h_issExtMax[4]; unsigned char h_ifdMax[4]; unsigned char h_crfd[4]; unsigned char h_iextMax[4]; unsigned char h_cbLine[8]; unsigned char h_cbLineOffset[8]; unsigned char h_cbDnOffset[8]; unsigned char h_cbPdOffset[8]; unsigned char h_cbSymOffset[8]; unsigned char h_cbOptOffset[8]; unsigned char h_cbAuxOffset[8]; unsigned char h_cbSsOffset[8]; unsigned char h_cbSsExtOffset[8]; unsigned char h_cbFdOffset[8]; unsigned char h_cbRfdOffset[8]; unsigned char h_cbExtOffset[8]; }; /* File descriptor external record */ struct fdr_ext { unsigned char f_adr[8]; unsigned char f_cbLineOffset[8]; unsigned char f_cbLine[8]; unsigned char f_cbSs[8]; unsigned char f_rss[4]; unsigned char f_issBase[4]; unsigned char f_isymBase[4]; unsigned char f_csym[4]; unsigned char f_ilineBase[4]; unsigned char f_cline[4]; unsigned char f_ioptBase[4]; unsigned char f_copt[4]; unsigned char f_ipdFirst[4]; unsigned char f_cpd[4]; unsigned char f_iauxBase[4]; unsigned char f_caux[4]; unsigned char f_rfdBase[4]; unsigned char f_crfd[4]; unsigned char f_bits1[1]; unsigned char f_bits2[3]; unsigned char f_padding[4]; }; #define FDR_BITS1_LANG_BIG 0xF8 #define FDR_BITS1_LANG_SH_BIG 3 #define FDR_BITS1_LANG_LITTLE 0x1F #define FDR_BITS1_LANG_SH_LITTLE 0 #define FDR_BITS1_FMERGE_BIG 0x04 #define FDR_BITS1_FMERGE_LITTLE 0x20 #define FDR_BITS1_FREADIN_BIG 0x02 #define FDR_BITS1_FREADIN_LITTLE 0x40 #define FDR_BITS1_FBIGENDIAN_BIG 0x01 #define FDR_BITS1_FBIGENDIAN_LITTLE 0x80 #define FDR_BITS2_GLEVEL_BIG 0xC0 #define FDR_BITS2_GLEVEL_SH_BIG 6 #define FDR_BITS2_GLEVEL_LITTLE 0x03 #define FDR_BITS2_GLEVEL_SH_LITTLE 0 /* We ignore the `reserved' field in bits2. */ /* Procedure descriptor external record */ struct pdr_ext { unsigned char p_adr[8]; unsigned char p_cbLineOffset[8]; unsigned char p_isym[4]; unsigned char p_iline[4]; unsigned char p_regmask[4]; unsigned char p_regoffset[4]; unsigned char p_iopt[4]; unsigned char p_fregmask[4]; unsigned char p_fregoffset[4]; unsigned char p_frameoffset[4]; unsigned char p_lnLow[4]; unsigned char p_lnHigh[4]; unsigned char p_gp_prologue[1]; unsigned char p_bits1[1]; unsigned char p_bits2[1]; unsigned char p_localoff[1]; unsigned char p_framereg[2]; unsigned char p_pcreg[2]; }; #define PDR_BITS1_GP_USED_BIG 0x80 #define PDR_BITS1_REG_FRAME_BIG 0x40 #define PDR_BITS1_PROF_BIG 0x20 #define PDR_BITS1_RESERVED_BIG 0x1f #define PDR_BITS1_RESERVED_SH_LEFT_BIG 8 #define PDR_BITS2_RESERVED_BIG 0xff #define PDR_BITS2_RESERVED_SH_BIG 0 #define PDR_BITS1_GP_USED_LITTLE 0x01 #define PDR_BITS1_REG_FRAME_LITTLE 0x02 #define PDR_BITS1_PROF_LITTLE 0x04 #define PDR_BITS1_RESERVED_LITTLE 0xf8 #define PDR_BITS1_RESERVED_SH_LITTLE 3 #define PDR_BITS2_RESERVED_LITTLE 0xff #define PDR_BITS2_RESERVED_SH_LEFT_LITTLE 5 /* Line numbers */ struct line_ext { unsigned char l_line[4]; }; /* Symbol external record */ struct sym_ext { unsigned char s_value[8]; unsigned char s_iss[4]; unsigned char s_bits1[1]; unsigned char s_bits2[1]; unsigned char s_bits3[1]; unsigned char s_bits4[1]; }; #define SYM_BITS1_ST_BIG 0xFC #define SYM_BITS1_ST_SH_BIG 2 #define SYM_BITS1_ST_LITTLE 0x3F #define SYM_BITS1_ST_SH_LITTLE 0 #define SYM_BITS1_SC_BIG 0x03 #define SYM_BITS1_SC_SH_LEFT_BIG 3 #define SYM_BITS1_SC_LITTLE 0xC0 #define SYM_BITS1_SC_SH_LITTLE 6 #define SYM_BITS2_SC_BIG 0xE0 #define SYM_BITS2_SC_SH_BIG 5 #define SYM_BITS2_SC_LITTLE 0x07 #define SYM_BITS2_SC_SH_LEFT_LITTLE 2 #define SYM_BITS2_RESERVED_BIG 0x10 #define SYM_BITS2_RESERVED_LITTLE 0x08 #define SYM_BITS2_INDEX_BIG 0x0F #define SYM_BITS2_INDEX_SH_LEFT_BIG 16 #define SYM_BITS2_INDEX_LITTLE 0xF0 #define SYM_BITS2_INDEX_SH_LITTLE 4 #define SYM_BITS3_INDEX_SH_LEFT_BIG 8 #define SYM_BITS3_INDEX_SH_LEFT_LITTLE 4 #define SYM_BITS4_INDEX_SH_LEFT_BIG 0 #define SYM_BITS4_INDEX_SH_LEFT_LITTLE 12 /* External symbol external record */ struct ext_ext { struct sym_ext es_asym; unsigned char es_bits1[1]; unsigned char es_bits2[3]; unsigned char es_ifd[4]; }; #define EXT_BITS1_JMPTBL_BIG 0x80 #define EXT_BITS1_JMPTBL_LITTLE 0x01 #define EXT_BITS1_COBOL_MAIN_BIG 0x40 #define EXT_BITS1_COBOL_MAIN_LITTLE 0x02 #define EXT_BITS1_WEAKEXT_BIG 0x20 #define EXT_BITS1_WEAKEXT_LITTLE 0x04 /* Dense numbers external record */ struct dnr_ext { unsigned char d_rfd[4]; unsigned char d_index[4]; }; /* Relative file descriptor */ struct rfd_ext { unsigned char rfd[4]; }; /* Optimizer symbol external record */ struct opt_ext { unsigned char o_bits1[1]; unsigned char o_bits2[1]; unsigned char o_bits3[1]; unsigned char o_bits4[1]; struct rndx_ext o_rndx; unsigned char o_offset[4]; }; #define OPT_BITS2_VALUE_SH_LEFT_BIG 16 #define OPT_BITS2_VALUE_SH_LEFT_LITTLE 0 #define OPT_BITS3_VALUE_SH_LEFT_BIG 8 #define OPT_BITS3_VALUE_SH_LEFT_LITTLE 8 #define OPT_BITS4_VALUE_SH_LEFT_BIG 0 #define OPT_BITS4_VALUE_SH_LEFT_LITTLE 16