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author | John Gilmore <gnu@cygnus> | 1992-03-06 07:53:37 +0000 |
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committer | John Gilmore <gnu@cygnus> | 1992-03-06 07:53:37 +0000 |
commit | 246ccf5f8f568a3c2d64bf0ca8861ed26d472779 (patch) | |
tree | 9caf7fa7d670ae5e0bddf4879996e5e7b2b29ecf /bfd | |
parent | d7da45058081042997dd5aef2edf9b4d3718e321 (diff) | |
download | gdb-246ccf5f8f568a3c2d64bf0ca8861ed26d472779.zip gdb-246ccf5f8f568a3c2d64bf0ca8861ed26d472779.tar.gz gdb-246ccf5f8f568a3c2d64bf0ca8861ed26d472779.tar.bz2 |
Initial revision
Diffstat (limited to 'bfd')
-rw-r--r-- | bfd/coff-msym.c | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/bfd/coff-msym.c b/bfd/coff-msym.c new file mode 100644 index 0000000..acdfa15 --- /dev/null +++ b/bfd/coff-msym.c @@ -0,0 +1,358 @@ +/* coff-msym.c: Byte-swap a symbol table in MIPS' format (Third-Eye, `ecoff'). + Copyright 1992 Free Software Foundation, Inc. + +This file is part of BFD, the Binary File Descriptor library. + +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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* These routines are not yet called from BFD. They are called from + the MIPS symbol reading code in GDB. However, they are in the BFD + library because they will eventually be useful if and when BFD + supports reading or writing of MIPS symbol tables. + + FLASH! FIXME! Unfortunately MIPS has these *%&%&$#^# copyrighted + include files defining the symbol format (which I've been politely + asking them to release for public use for about a year now). Since + this function can only compile if these include files are available, + the config files for MIPS-based hosts configure the Makefile so that + this file will be compiled only if on a MIPS-based host. FIXME! + + The routines in this file convert the external representation of + ECOFF symbol tables to the internal (usual struct) representation. + On a machine with the same byte-order and the same basic type + sizes and alignments as a MIPS machine, this is a no-op. + If the symbol TEST is defined when this file is compiled, a comparison + is made to ensure that, in fact, the output is bit-for-bit the same as + the input. Of course, this symbol should only be defined when + deliberately testing the code on a machine with the proper byte sex + and such. */ + +#include "bfd.h" +#undef LANGUAGE_C +#define LANGUAGE_C /* Wierd MIPS crap */ +#include "sym.h" /* MIPS symbols */ +#include "symconst.h" /* MIPS symbols */ +#include "coff/ecoff-ext.h" /* ECOFF external struct defns */ + +void +ecoff_swap_hdr_in (abfd, ext_copy, intern) + bfd *abfd; + struct hdr_ext *ext_copy; + HDRR *intern; +{ + struct hdr_ext ext[1]; + + *ext = *ext_copy; + + intern->magic = bfd_h_get_16 (abfd, (bfd_byte *)ext->h_magic); + intern->vstamp = bfd_h_get_16 (abfd, (bfd_byte *)ext->h_vstamp); + intern->ilineMax = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_ilineMax); + intern->cbLine = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbLine); + intern->cbLineOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbLineOffset); + intern->idnMax = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_idnMax); + intern->cbDnOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbDnOffset); + intern->ipdMax = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_ipdMax); + intern->cbPdOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbPdOffset); + intern->isymMax = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_isymMax); + intern->cbSymOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbSymOffset); + intern->ioptMax = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_ioptMax); + intern->cbOptOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbOptOffset); + intern->iauxMax = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_iauxMax); + intern->cbAuxOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbAuxOffset); + intern->issMax = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_issMax); + intern->cbSsOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbSsOffset); + intern->issExtMax = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_issExtMax); + intern->cbSsExtOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbSsExtOffset); + intern->ifdMax = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_ifdMax); + intern->cbFdOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbFdOffset); + intern->crfd = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_crfd); + intern->cbRfdOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbRfdOffset); + intern->iextMax = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_iextMax); + intern->cbExtOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->h_cbExtOffset); + +#ifdef TEST + if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) + abort(); +#endif +} + +/* Swap in the file descriptor record. */ + +void +ecoff_swap_fdr_in (abfd, ext_copy, intern) + bfd *abfd; + struct fdr_ext *ext_copy; + FDR *intern; +{ + struct fdr_ext ext[1]; + + *ext = *ext_copy; /* Make it reasonable to do in-place. */ + + intern->adr = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_adr); + intern->rss = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_rss); + intern->issBase = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_issBase); + intern->cbSs = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_cbSs); + intern->isymBase = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_isymBase); + intern->csym = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_csym); + intern->ilineBase = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_ilineBase); + intern->cline = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_cline); + intern->ioptBase = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_ioptBase); + intern->copt = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_copt); + intern->ipdFirst = bfd_h_get_16 (abfd, (bfd_byte *)ext->f_ipdFirst); + intern->cpd = bfd_h_get_16 (abfd, (bfd_byte *)ext->f_cpd); + intern->iauxBase = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_iauxBase); + intern->caux = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_caux); + intern->rfdBase = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_rfdBase); + intern->crfd = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_crfd); + + /* now the fun stuff... */ + if (abfd->xvec->header_byteorder_big_p != false) { + intern->lang = (ext->f_bits1[0] & FDR_BITS1_LANG_BIG) + >> FDR_BITS1_LANG_SH_BIG; + intern->fMerge = 0 != (ext->f_bits1[0] & FDR_BITS1_FMERGE_BIG); + intern->fReadin = 0 != (ext->f_bits1[0] & FDR_BITS1_FREADIN_BIG); + intern->fBigendian = 0 != (ext->f_bits1[0] & FDR_BITS1_FBIGENDIAN_BIG); + intern->glevel = (ext->f_bits2[0] & FDR_BITS2_GLEVEL_BIG) + >> FDR_BITS2_GLEVEL_SH_BIG; + /* intern->reserved we ignore. */ + } else { + intern->lang = (ext->f_bits1[0] & FDR_BITS1_LANG_LITTLE) + >> FDR_BITS1_LANG_SH_LITTLE; + intern->fMerge = 0 != (ext->f_bits1[0] & FDR_BITS1_FMERGE_LITTLE); + intern->fReadin = 0 != (ext->f_bits1[0] & FDR_BITS1_FREADIN_LITTLE); + intern->fBigendian = 0 != (ext->f_bits1[0] & FDR_BITS1_FBIGENDIAN_LITTLE); + intern->glevel = (ext->f_bits2[0] & FDR_BITS2_GLEVEL_LITTLE) + >> FDR_BITS2_GLEVEL_SH_LITTLE; + /* intern->reserved we ignore. */ + } + + intern->cbLineOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_cbLineOffset); + intern->cbLine = bfd_h_get_32 (abfd, (bfd_byte *)ext->f_cbLine); + +#ifdef TEST + if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) + abort(); +#endif +} + + + +/* Swap in the procedure descriptor record. */ + +void +ecoff_swap_pdr_in (abfd, ext_copy, intern) + bfd *abfd; + struct pdr_ext *ext_copy; + PDR *intern; +{ + struct pdr_ext ext[1]; + + *ext = *ext_copy; /* Make it reasonable to do in-place. */ + + intern->adr = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_adr); + intern->isym = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_isym); + intern->iline = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_iline); + intern->regmask = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_regmask); + intern->regoffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_regoffset); + intern->iopt = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_iopt); + intern->fregmask = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_fregmask); + intern->fregoffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_fregoffset); + intern->frameoffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_frameoffset); + intern->framereg = bfd_h_get_16 (abfd, (bfd_byte *)ext->p_framereg); + intern->pcreg = bfd_h_get_16 (abfd, (bfd_byte *)ext->p_pcreg); + intern->lnLow = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_lnLow); + intern->lnHigh = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_lnHigh); + intern->cbLineOffset = bfd_h_get_32 (abfd, (bfd_byte *)ext->p_cbLineOffset); + +#ifdef TEST + if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) + abort(); +#endif +} + + +/* Swap in a symbol record. */ + +void +ecoff_swap_sym_in (abfd, ext_copy, intern) + bfd *abfd; + struct sym_ext *ext_copy; + SYMR *intern; +{ + struct sym_ext ext[1]; + + *ext = *ext_copy; /* Make it reasonable to do in-place. */ + + intern->iss = bfd_h_get_32 (abfd, (bfd_byte *)ext->s_iss); + intern->value = bfd_h_get_32 (abfd, (bfd_byte *)ext->s_value); + + /* now the fun stuff... */ + if (abfd->xvec->header_byteorder_big_p != false) { + intern->st = (ext->s_bits1[0] & SYM_BITS1_ST_BIG) + >> SYM_BITS1_ST_SH_BIG; + intern->sc = ((ext->s_bits1[0] & SYM_BITS1_SC_BIG) + << SYM_BITS1_SC_SH_LEFT_BIG) + | ((ext->s_bits2[0] & SYM_BITS2_SC_BIG) + >> SYM_BITS2_SC_SH_BIG); + intern->reserved = 0 != (ext->s_bits2[0] & SYM_BITS2_RESERVED_BIG); + intern->index = ((ext->s_bits2[0] & SYM_BITS2_INDEX_BIG) + << SYM_BITS2_INDEX_SH_LEFT_BIG) + | (ext->s_bits3[0] << SYM_BITS3_INDEX_SH_LEFT_BIG) + | (ext->s_bits4[0] << SYM_BITS4_INDEX_SH_LEFT_BIG); + } else { + intern->st = (ext->s_bits1[0] & SYM_BITS1_ST_LITTLE) + >> SYM_BITS1_ST_SH_LITTLE; + intern->sc = ((ext->s_bits1[0] & SYM_BITS1_SC_LITTLE) + >> SYM_BITS1_SC_SH_LITTLE) + | ((ext->s_bits2[0] & SYM_BITS2_SC_LITTLE) + << SYM_BITS2_SC_SH_LEFT_LITTLE); + intern->reserved = 0 != (ext->s_bits2[0] & SYM_BITS2_RESERVED_LITTLE); + intern->index = ((ext->s_bits2[0] & SYM_BITS2_INDEX_LITTLE) + >> SYM_BITS2_INDEX_SH_LITTLE) + | (ext->s_bits3[0] << SYM_BITS3_INDEX_SH_LEFT_LITTLE) + | (ext->s_bits4[0] << SYM_BITS4_INDEX_SH_LEFT_LITTLE); + } + +#ifdef TEST + if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) + abort(); +#endif +} + + +/* Swap in an external symbol record. */ + +void +ecoff_swap_ext_in (abfd, ext_copy, intern) + bfd *abfd; + struct ext_ext *ext_copy; + EXTR *intern; +{ + struct ext_ext ext[1]; + + *ext = *ext_copy; /* Make it reasonable to do in-place. */ + + /* now the fun stuff... */ + if (abfd->xvec->header_byteorder_big_p != false) { + intern->jmptbl = 0 != (ext->es_bits1[0] & EXT_BITS1_JMPTBL_BIG); + intern->cobol_main = 0 != (ext->es_bits1[0] & EXT_BITS1_COBOL_MAIN_BIG); + } else { + intern->jmptbl = 0 != (ext->es_bits1[0] & EXT_BITS1_JMPTBL_LITTLE); + intern->cobol_main = 0 != (ext->es_bits1[0] & EXT_BITS1_COBOL_MAIN_LITTLE); + } + + intern->ifd = bfd_h_get_16 (abfd, (bfd_byte *)ext->es_ifd); + ecoff_swap_sym_in (abfd, &ext->es_asym, &intern->asym); + +#ifdef TEST + if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) + abort(); +#endif +} + +/* Swap in a type information record. + BIGEND says whether AUX symbols are big-endian or little-endian; this + info comes from the file header record (fh-fBigendian). */ + +void +ecoff_swap_tir_in (bigend, ext_copy, intern) + int bigend; + struct tir_ext *ext_copy; + TIR *intern; +{ + struct tir_ext ext[1]; + + *ext = *ext_copy; /* Make it reasonable to do in-place. */ + + /* now the fun stuff... */ + if (bigend) { + intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_BIG); + intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_BIG); + intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_BIG) + >> TIR_BITS1_BT_SH_BIG; + intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_BIG) + >> TIR_BITS_TQ4_SH_BIG; + intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_BIG) + >> TIR_BITS_TQ5_SH_BIG; + intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_BIG) + >> TIR_BITS_TQ0_SH_BIG; + intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_BIG) + >> TIR_BITS_TQ1_SH_BIG; + intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_BIG) + >> TIR_BITS_TQ2_SH_BIG; + intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_BIG) + >> TIR_BITS_TQ3_SH_BIG; + } else { + intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_LITTLE); + intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_LITTLE); + intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_LITTLE) + >> TIR_BITS1_BT_SH_LITTLE; + intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_LITTLE) + >> TIR_BITS_TQ4_SH_LITTLE; + intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_LITTLE) + >> TIR_BITS_TQ5_SH_LITTLE; + intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_LITTLE) + >> TIR_BITS_TQ0_SH_LITTLE; + intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_LITTLE) + >> TIR_BITS_TQ1_SH_LITTLE; + intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_LITTLE) + >> TIR_BITS_TQ2_SH_LITTLE; + intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_LITTLE) + >> TIR_BITS_TQ3_SH_LITTLE; + } + +#ifdef TEST + if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) + abort(); +#endif +} + +/* Swap in a relative symbol record. BIGEND says whether it is in + big-endian or little-endian format.*/ + +void +ecoff_swap_rndx_in (bigend, ext_copy, intern) + int bigend; + struct rndx_ext *ext_copy; + RNDXR *intern; +{ + struct rndx_ext ext[1]; + + *ext = *ext_copy; /* Make it reasonable to do in-place. */ + + /* now the fun stuff... */ + if (bigend) { + intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_BIG) + | ((ext->r_bits[1] & RNDX_BITS1_RFD_BIG) + >> RNDX_BITS1_RFD_SH_BIG); + intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_BIG) + << RNDX_BITS1_INDEX_SH_LEFT_BIG) + | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_BIG) + | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_BIG); + } else { + intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_LITTLE) + | ((ext->r_bits[1] & RNDX_BITS1_RFD_LITTLE) + << RNDX_BITS1_RFD_SH_LEFT_LITTLE); + intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_LITTLE) + >> RNDX_BITS1_INDEX_SH_LITTLE) + | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_LITTLE) + | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_LITTLE); + } + +#ifdef TEST + if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) + abort(); +#endif +} |