301 lines
8 KiB
C
301 lines
8 KiB
C
/* MIPS `ECOFF' symbol table external format.
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Copyright 1992 Free Software Foundation.
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Contributed by Cygnus Support. Written by John Gilmore.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* ECOFF uses COFF-like section structures, but its own symbol format.
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This file defines the symbol format in fields whose size and alignment
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will not vary on different host systems. The bfd module coff-msym.c
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converts between external and internal forms of this information,
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deals with byte order issues, etc. */
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/* File header as a set of bytes */
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struct hdr_ext {
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unsigned char h_magic[2];
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unsigned char h_vstamp[2];
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unsigned char h_ilineMax[4];
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unsigned char h_cbLine[4];
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unsigned char h_cbLineOffset[4];
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unsigned char h_idnMax[4];
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unsigned char h_cbDnOffset[4];
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unsigned char h_ipdMax[4];
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unsigned char h_cbPdOffset[4];
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unsigned char h_isymMax[4];
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unsigned char h_cbSymOffset[4];
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unsigned char h_ioptMax[4];
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unsigned char h_cbOptOffset[4];
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unsigned char h_iauxMax[4];
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unsigned char h_cbAuxOffset[4];
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unsigned char h_issMax[4];
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unsigned char h_cbSsOffset[4];
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unsigned char h_issExtMax[4];
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unsigned char h_cbSsExtOffset[4];
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unsigned char h_ifdMax[4];
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unsigned char h_cbFdOffset[4];
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unsigned char h_crfd[4];
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unsigned char h_cbRfdOffset[4];
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unsigned char h_iextMax[4];
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unsigned char h_cbExtOffset[4];
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};
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/* File descriptor external record */
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struct fdr_ext {
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unsigned char f_adr[4];
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unsigned char f_rss[4];
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unsigned char f_issBase[4];
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unsigned char f_cbSs[4];
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unsigned char f_isymBase[4];
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unsigned char f_csym[4];
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unsigned char f_ilineBase[4];
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unsigned char f_cline[4];
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unsigned char f_ioptBase[4];
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unsigned char f_copt[4];
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unsigned char f_ipdFirst[2];
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unsigned char f_cpd[2];
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unsigned char f_iauxBase[4];
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unsigned char f_caux[4];
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unsigned char f_rfdBase[4];
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unsigned char f_crfd[4];
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unsigned char f_bits1[1];
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unsigned char f_bits2[3];
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unsigned char f_cbLineOffset[4];
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unsigned char f_cbLine[4];
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};
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#define FDR_BITS1_LANG_BIG 0xF8
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#define FDR_BITS1_LANG_SH_BIG 3
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#define FDR_BITS1_LANG_LITTLE 0x1F
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#define FDR_BITS1_LANG_SH_LITTLE 0
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#define FDR_BITS1_FMERGE_BIG 0x04
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#define FDR_BITS1_FMERGE_LITTLE 0x20
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#define FDR_BITS1_FREADIN_BIG 0x02
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#define FDR_BITS1_FREADIN_LITTLE 0x40
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#define FDR_BITS1_FBIGENDIAN_BIG 0x01
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#define FDR_BITS1_FBIGENDIAN_LITTLE 0x80
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#define FDR_BITS2_GLEVEL_BIG 0xC0
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#define FDR_BITS2_GLEVEL_SH_BIG 6
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#define FDR_BITS2_GLEVEL_LITTLE 0x03
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#define FDR_BITS2_GLEVEL_SH_LITTLE 0
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/* We ignore the `reserved' field in bits2. */
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/* Procedure descriptor external record */
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struct pdr_ext {
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unsigned char p_adr[4];
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unsigned char p_isym[4];
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unsigned char p_iline[4];
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unsigned char p_regmask[4];
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unsigned char p_regoffset[4];
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unsigned char p_iopt[4];
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unsigned char p_fregmask[4];
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unsigned char p_fregoffset[4];
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unsigned char p_frameoffset[4];
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unsigned char p_framereg[2];
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unsigned char p_pcreg[2];
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unsigned char p_lnLow[4];
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unsigned char p_lnHigh[4];
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unsigned char p_cbLineOffset[4];
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};
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/* Line numbers */
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struct line_ext {
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unsigned char l_line[4];
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};
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/* Symbol external record */
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struct sym_ext {
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unsigned char s_iss[4];
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unsigned char s_value[4];
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unsigned char s_bits1[1];
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unsigned char s_bits2[1];
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unsigned char s_bits3[1];
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unsigned char s_bits4[1];
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};
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#define SYM_BITS1_ST_BIG 0xFC
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#define SYM_BITS1_ST_SH_BIG 2
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#define SYM_BITS1_ST_LITTLE 0x3F
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#define SYM_BITS1_ST_SH_LITTLE 0
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#define SYM_BITS1_SC_BIG 0x03
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#define SYM_BITS1_SC_SH_LEFT_BIG 3
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#define SYM_BITS1_SC_LITTLE 0xC0
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#define SYM_BITS1_SC_SH_LITTLE 6
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#define SYM_BITS2_SC_BIG 0xE0
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#define SYM_BITS2_SC_SH_BIG 5
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#define SYM_BITS2_SC_LITTLE 0x07
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#define SYM_BITS2_SC_SH_LEFT_LITTLE 2
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#define SYM_BITS2_RESERVED_BIG 0x10
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#define SYM_BITS2_RESERVED_LITTLE 0x08
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#define SYM_BITS2_INDEX_BIG 0x0F
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#define SYM_BITS2_INDEX_SH_LEFT_BIG 16
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#define SYM_BITS2_INDEX_LITTLE 0xF0
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#define SYM_BITS2_INDEX_SH_LITTLE 4
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#define SYM_BITS3_INDEX_SH_LEFT_BIG 8
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#define SYM_BITS3_INDEX_SH_LEFT_LITTLE 4
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#define SYM_BITS4_INDEX_SH_LEFT_BIG 0
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#define SYM_BITS4_INDEX_SH_LEFT_LITTLE 12
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/* External symbol external record */
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struct ext_ext {
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unsigned char es_bits1[1];
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unsigned char es_bits2[1];
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unsigned char es_ifd[2];
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struct sym_ext es_asym;
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};
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#define EXT_BITS1_JMPTBL_BIG 0x80
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#define EXT_BITS1_JMPTBL_LITTLE 0x01
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#define EXT_BITS1_COBOL_MAIN_BIG 0x40
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#define EXT_BITS1_COBOL_MAIN_LITTLE 0x02
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#define EXT_BITS1_WEAKEXT_BIG 0x20
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#define EXT_BITS1_WEAKEXT_LITTLE 0x04
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/* Type information external record */
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struct tir_ext {
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unsigned char t_bits1[1];
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unsigned char t_tq45[1];
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unsigned char t_tq01[1];
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unsigned char t_tq23[1];
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};
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#define TIR_BITS1_FBITFIELD_BIG 0x80
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#define TIR_BITS1_FBITFIELD_LITTLE 0x01
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#define TIR_BITS1_CONTINUED_BIG 0x40
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#define TIR_BITS1_CONTINUED_LITTLE 0x02
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#define TIR_BITS1_BT_BIG 0x3F
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#define TIR_BITS1_BT_SH_BIG 0
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#define TIR_BITS1_BT_LITTLE 0xFC
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#define TIR_BITS1_BT_SH_LITTLE 2
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#define TIR_BITS_TQ4_BIG 0xF0
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#define TIR_BITS_TQ4_SH_BIG 4
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#define TIR_BITS_TQ5_BIG 0x0F
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#define TIR_BITS_TQ5_SH_BIG 0
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#define TIR_BITS_TQ4_LITTLE 0x0F
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#define TIR_BITS_TQ4_SH_LITTLE 0
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#define TIR_BITS_TQ5_LITTLE 0xF0
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#define TIR_BITS_TQ5_SH_LITTLE 4
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#define TIR_BITS_TQ0_BIG 0xF0
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#define TIR_BITS_TQ0_SH_BIG 4
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#define TIR_BITS_TQ1_BIG 0x0F
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#define TIR_BITS_TQ1_SH_BIG 0
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#define TIR_BITS_TQ0_LITTLE 0x0F
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#define TIR_BITS_TQ0_SH_LITTLE 0
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#define TIR_BITS_TQ1_LITTLE 0xF0
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#define TIR_BITS_TQ1_SH_LITTLE 4
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#define TIR_BITS_TQ2_BIG 0xF0
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#define TIR_BITS_TQ2_SH_BIG 4
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#define TIR_BITS_TQ3_BIG 0x0F
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#define TIR_BITS_TQ3_SH_BIG 0
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#define TIR_BITS_TQ2_LITTLE 0x0F
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#define TIR_BITS_TQ2_SH_LITTLE 0
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#define TIR_BITS_TQ3_LITTLE 0xF0
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#define TIR_BITS_TQ3_SH_LITTLE 4
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/* Relative symbol external record */
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struct rndx_ext {
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unsigned char r_bits[4];
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};
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#define RNDX_BITS0_RFD_SH_LEFT_BIG 4
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#define RNDX_BITS1_RFD_BIG 0xF0
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#define RNDX_BITS1_RFD_SH_BIG 4
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#define RNDX_BITS0_RFD_SH_LEFT_LITTLE 0
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#define RNDX_BITS1_RFD_LITTLE 0x0F
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#define RNDX_BITS1_RFD_SH_LEFT_LITTLE 8
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#define RNDX_BITS1_INDEX_BIG 0x0F
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#define RNDX_BITS1_INDEX_SH_LEFT_BIG 16
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#define RNDX_BITS2_INDEX_SH_LEFT_BIG 8
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#define RNDX_BITS3_INDEX_SH_LEFT_BIG 0
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#define RNDX_BITS1_INDEX_LITTLE 0xF0
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#define RNDX_BITS1_INDEX_SH_LITTLE 4
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#define RNDX_BITS2_INDEX_SH_LEFT_LITTLE 4
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#define RNDX_BITS3_INDEX_SH_LEFT_LITTLE 12
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/* Dense numbers external record */
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struct dnr_ext {
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unsigned char d_rfd[4];
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unsigned char d_index[4];
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};
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/* Auxliliary symbol information external record */
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union aux_ext {
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struct tir_ext a_ti;
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struct rndx_ext a_rndx;
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unsigned char a_dnLow[4];
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unsigned char a_dnHigh[4];
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unsigned char a_isym[4];
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unsigned char a_iss[4];
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unsigned char a_width[4];
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unsigned char a_count[4];
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};
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/* FIXME! These are copied from ../bfd/libbfd.h */
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PROTO (bfd_vma, _do_getb32, (unsigned char *addr));
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PROTO (bfd_vma, _do_getl32, (unsigned char *addr));
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#define AUX_GET_DNLOW(bigend, ax) (bigend? _do_getb32 ((ax)->a_dnLow): \
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_do_getl32 ((ax)->a_dnLow))
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#define AUX_GET_DNHIGH(bigend, ax) (bigend? _do_getb32 ((ax)->a_dnHigh): \
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_do_getl32 ((ax)->a_dnHigh))
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#define AUX_GET_ISYM(bigend, ax) (bigend? _do_getb32 ((ax)->a_isym): \
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_do_getl32 ((ax)->a_isym))
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#define AUX_GET_ISS(bigend, ax) (bigend? _do_getb32 ((ax)->a_iss): \
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_do_getl32 ((ax)->a_iss))
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#define AUX_GET_WIDTH(bigend, ax) (bigend? _do_getb32 ((ax)->a_width): \
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_do_getl32 ((ax)->a_width))
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#define AUX_GET_COUNT(bigend, ax) (bigend? _do_getb32 ((ax)->a_count): \
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_do_getl32 ((ax)->a_count))
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/* Relative file descriptor */
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struct rfd_ext {
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unsigned char rfd[4];
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};
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