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Diffstat (limited to 'include/coff/mips.h')
| -rw-r--r-- | include/coff/mips.h | 367 |
1 files changed, 0 insertions, 367 deletions
diff --git a/include/coff/mips.h b/include/coff/mips.h deleted file mode 100644 index b9503bd..0000000 --- a/include/coff/mips.h +++ /dev/null @@ -1,367 +0,0 @@ -/* ECOFF support on MIPS machines. - coff/ecoff.h must be included before this file. - - Copyright 2001 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define DO_NOT_DEFINE_AOUTHDR -#define L_LNNO_SIZE 4 -#include "coff/external.h" - -/* Magic numbers are defined in coff/ecoff.h. */ -#define MIPS_ECOFF_BADMAG(x) (((x).f_magic!=MIPS_MAGIC_1) && \ - ((x).f_magic!=MIPS_MAGIC_LITTLE) &&\ - ((x).f_magic!=MIPS_MAGIC_BIG) && \ - ((x).f_magic!=MIPS_MAGIC_LITTLE2) && \ - ((x).f_magic!=MIPS_MAGIC_BIG2) && \ - ((x).f_magic!=MIPS_MAGIC_LITTLE3) && \ - ((x).f_magic!=MIPS_MAGIC_BIG3)) - - -/********************** AOUT "OPTIONAL HEADER" **********************/ - -typedef struct external_aouthdr -{ - unsigned char magic[2]; /* type of file */ - unsigned char vstamp[2]; /* version stamp */ - unsigned char tsize[4]; /* text size in bytes, padded to FW bdry*/ - unsigned char dsize[4]; /* initialized data " " */ - unsigned char bsize[4]; /* uninitialized data " " */ - unsigned char entry[4]; /* entry pt. */ - unsigned char text_start[4]; /* base of text used for this file */ - unsigned char data_start[4]; /* base of data used for this file */ - unsigned char bss_start[4]; /* base of bss used for this file */ - unsigned char gprmask[4]; /* ?? */ - unsigned char cprmask[4][4]; /* ?? */ - unsigned char gp_value[4]; /* value for gp register */ -} AOUTHDR; - -/* compute size of a header */ - -#define AOUTSZ 56 -#define AOUTHDRSZ 56 - -/********************** RELOCATION DIRECTIVES **********************/ - -struct external_reloc - { - unsigned char r_vaddr[4]; - unsigned char r_bits[4]; - }; - -#define RELOC struct external_reloc -#define RELSZ 8 - -/* MIPS ECOFF uses a packed 8 byte format for relocs. These constants - are used to unpack the r_bits field. */ - -#define RELOC_BITS0_SYMNDX_SH_LEFT_BIG 16 -#define RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE 0 - -#define RELOC_BITS1_SYMNDX_SH_LEFT_BIG 8 -#define RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE 8 - -#define RELOC_BITS2_SYMNDX_SH_LEFT_BIG 0 -#define RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE 16 - -/* Originally, ECOFF used four bits for the reloc type and had three - reserved bits. Irix 4 added another bit for the reloc type, which - was easy because it was big endian and one of the spare bits became - the new most significant bit. To make this also work for little - endian ECOFF, we need to wrap one of the reserved bits around to - become the most significant bit of the reloc type. */ -#define RELOC_BITS3_TYPE_BIG 0x3E -#define RELOC_BITS3_TYPE_SH_BIG 1 -#define RELOC_BITS3_TYPE_LITTLE 0x78 -#define RELOC_BITS3_TYPE_SH_LITTLE 3 -#define RELOC_BITS3_TYPEHI_LITTLE 0x04 -#define RELOC_BITS3_TYPEHI_SH_LITTLE 2 - -#define RELOC_BITS3_EXTERN_BIG 0x01 -#define RELOC_BITS3_EXTERN_LITTLE 0x80 - -/* The r_type field in a reloc is one of the following values. I - don't know if any other values can appear. These seem to be all - that occur in the Ultrix 4.2 libraries. */ -#define MIPS_R_IGNORE 0 -#define MIPS_R_REFHALF 1 -#define MIPS_R_REFWORD 2 -#define MIPS_R_JMPADDR 3 -#define MIPS_R_REFHI 4 -#define MIPS_R_REFLO 5 -#define MIPS_R_GPREL 6 -#define MIPS_R_LITERAL 7 - -/* These reloc types are a Cygnus extension used when generating - position independent code for embedded systems. The numbers are - taken from Irix 4, but at least for internal relocs Irix 5 does not - give them the same meaning. For an internal reloc the symbol index - of RELHI and RELLO is modified as described below for - MIPS_R_SWITCH. */ -#define MIPS_R_PCREL16 12 -#define MIPS_R_RELHI 13 -#define MIPS_R_RELLO 14 - -/* This reloc type is a Cygnus extension used when generating position - independent code for embedded systems. It is used for an entry in - a switch table, which looks like this: - .word $L3-$LS12 - The object file will contain the correct difference, and does not - require adjustment. However, when the linker is relaxing PC - relative calls, it is possible for $L3 to move farther away. This - reloc always appears in the .text section, and is always against - the .text section. However, the symbol index is not - RELOC_SECTION_TEXT. It is, instead, the distance between this - switch table entry and $LS12. Thus, the original value of $L12 is - vaddr - symndx - and the original value of $L3 is - vaddr - symndx + addend - where addend is the value in the object file. Knowing this, the - linker can know whether the addend in the object file must be - adjusted. */ -#define MIPS_R_SWITCH 22 - -/********************** STABS **********************/ - -#define MIPS_IS_STAB ECOFF_IS_STAB -#define MIPS_MARK_STAB ECOFF_MARK_STAB -#define MIPS_UNMARK_STAB ECOFF_UNMARK_STAB - -/********************** 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_cbLine[4]; - unsigned char h_cbLineOffset[4]; - unsigned char h_idnMax[4]; - unsigned char h_cbDnOffset[4]; - unsigned char h_ipdMax[4]; - unsigned char h_cbPdOffset[4]; - unsigned char h_isymMax[4]; - unsigned char h_cbSymOffset[4]; - unsigned char h_ioptMax[4]; - unsigned char h_cbOptOffset[4]; - unsigned char h_iauxMax[4]; - unsigned char h_cbAuxOffset[4]; - unsigned char h_issMax[4]; - unsigned char h_cbSsOffset[4]; - unsigned char h_issExtMax[4]; - unsigned char h_cbSsExtOffset[4]; - unsigned char h_ifdMax[4]; - unsigned char h_cbFdOffset[4]; - unsigned char h_crfd[4]; - unsigned char h_cbRfdOffset[4]; - unsigned char h_iextMax[4]; - unsigned char h_cbExtOffset[4]; -}; - -/* File descriptor external record */ - -struct fdr_ext -{ - unsigned char f_adr[4]; - unsigned char f_rss[4]; - unsigned char f_issBase[4]; - unsigned char f_cbSs[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[2]; - unsigned char f_cpd[2]; - 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_cbLineOffset[4]; - unsigned char f_cbLine[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[4]; - 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_framereg[2]; - unsigned char p_pcreg[2]; - unsigned char p_lnLow[4]; - unsigned char p_lnHigh[4]; - unsigned char p_cbLineOffset[4]; -}; - -/* Runtime procedure table */ - -struct rpdr_ext -{ - unsigned char p_adr[4]; - unsigned char p_regmask[4]; - unsigned char p_regoffset[4]; - unsigned char p_fregmask[4]; - unsigned char p_fregoffset[4]; - unsigned char p_frameoffset[4]; - unsigned char p_framereg[2]; - unsigned char p_pcreg[2]; - unsigned char p_irpss[4]; - unsigned char p_reserved[4]; - unsigned char p_exception_info[4]; -}; - -/* Line numbers */ - -struct line_ext -{ - unsigned char l_line[4]; -}; - -/* Symbol external record */ - -struct sym_ext -{ - unsigned char s_iss[4]; - unsigned char s_value[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 -{ - unsigned char es_bits1[1]; - unsigned char es_bits2[1]; - unsigned char es_ifd[2]; - struct sym_ext es_asym; -}; - -#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 |