| /* ECOFF support on Alpha machines. |
| coff/ecoff.h must be included before this file. |
| |
| Copyright (C) 2001-2024 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 |
