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Diffstat (limited to 'include/coff/ti.h')
| -rw-r--r-- | include/coff/ti.h | 544 |
1 files changed, 0 insertions, 544 deletions
diff --git a/include/coff/ti.h b/include/coff/ti.h deleted file mode 100644 index 86f7a1339..000000000 --- a/include/coff/ti.h +++ /dev/null @@ -1,544 +0,0 @@ -/* COFF information for TI COFF support. Definitions in this file should be - customized in a target-specific file, and then this file included (see - tic54x.h for an example). - - Copyright 2000, 2001, 2002, 2003, 2008 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ -#ifndef COFF_TI_H -#define COFF_TI_H - -/* Note "coff/external.h is not used because TI adds extra fields to the structures. */ - -/********************** FILE HEADER **********************/ - -struct external_filehdr - { - char f_magic[2]; /* magic number */ - char f_nscns[2]; /* number of sections */ - char f_timdat[4]; /* time & date stamp */ - char f_symptr[4]; /* file pointer to symtab */ - char f_nsyms[4]; /* number of symtab entries */ - char f_opthdr[2]; /* sizeof(optional hdr) */ - char f_flags[2]; /* flags */ - char f_target_id[2]; /* magic no. (TI COFF-specific) */ - }; - -/* COFF0 has magic number in f_magic, and omits f_target_id from the file - header; for later versions, f_magic is 0xC1 for COFF1 and 0xC2 for COFF2 - and the target-specific magic number is found in f_target_id */ - -#define TICOFF0MAGIC TI_TARGET_ID -#define TICOFF1MAGIC 0x00C1 -#define TICOFF2MAGIC 0x00C2 -#define TICOFF_AOUT_MAGIC 0x0108 /* magic number in optional header */ -#define TICOFF 1 /* customize coffcode.h */ - -/* The target_id field changes depending on the particular CPU target */ -/* for COFF0, the target id appeared in f_magic, where COFFX magic is now */ -#ifndef TI_TARGET_ID -#error "TI_TARGET_ID needs to be defined for your CPU" -#endif - -/* Which bfd_arch to use... */ -#ifndef TICOFF_TARGET_ARCH -#error "TICOFF_TARGET_ARCH needs to be defined for your CPU" -#endif - -#ifndef TICOFF_TARGET_MACHINE_GET -#define TICOFF_TARGET_MACHINE_GET(FLAGS) 0 -#endif - -#ifndef TICOFF_TARGET_MACHINE_SET -#define TICOFF_TARGET_MACHINE_SET(FLAGSP, MACHINE) -#endif - -/* Default to COFF2 for file output */ -#ifndef TICOFF_DEFAULT_MAGIC -#define TICOFF_DEFAULT_MAGIC TICOFF2MAGIC -#endif - -/* This value is made available in the rare case where a bfd is unavailable */ -#ifndef OCTETS_PER_BYTE_POWER -#error "OCTETS_PER_BYTE_POWER not defined for this CPU" -#else -#define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER) -#endif - -/* default alignment is on a byte (not octet!) boundary */ -#ifndef COFF_DEFAULT_SECTION_ALIGNMENT_POWER -#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 0 -#endif - -/* TI COFF encodes the section alignment in the section header flags */ -#define COFF_ALIGN_IN_SECTION_HEADER 1 -#define COFF_ALIGN_IN_S_FLAGS 1 -/* requires a power-of-two argument */ -#define COFF_ENCODE_ALIGNMENT(S,X) ((S).s_flags |= (((unsigned)(X)&0xF)<<8)) -/* result is a power of two */ -#define COFF_DECODE_ALIGNMENT(X) (((X)>>8)&0xF) - -#define COFF0_P(ABFD) (bfd_coff_filhsz(ABFD) == FILHSZ_V0) -#define COFF2_P(ABFD) (bfd_coff_scnhsz(ABFD) != SCNHSZ_V01) - -#define COFF0_BADMAG(x) ((x).f_magic != TICOFF0MAGIC) -#define COFF1_BADMAG(x) ((x).f_magic != TICOFF1MAGIC || (x).f_target_id != TI_TARGET_ID) -#define COFF2_BADMAG(x) ((x).f_magic != TICOFF2MAGIC || (x).f_target_id != TI_TARGET_ID) - -/* we need to read/write an extra field in the coff file header */ -#ifndef COFF_ADJUST_FILEHDR_IN_POST -#define COFF_ADJUST_FILEHDR_IN_POST(abfd, src, dst) \ - do \ - { \ - ((struct internal_filehdr *)(dst))->f_target_id = \ - H_GET_16 (abfd, ((FILHDR *)(src))->f_target_id); \ - } \ - while (0) -#endif - -#ifndef COFF_ADJUST_FILEHDR_OUT_POST -#define COFF_ADJUST_FILEHDR_OUT_POST(abfd, src, dst) \ - do \ - { \ - H_PUT_16 (abfd, ((struct internal_filehdr *)(src))->f_target_id, \ - ((FILHDR *)(dst))->f_target_id); \ - } \ - while (0) -#endif - -#define FILHDR struct external_filehdr -#define FILHSZ 22 -#define FILHSZ_V0 20 /* COFF0 omits target_id field */ - -/* File header flags */ -#define F_RELFLG (0x0001) -#define F_EXEC (0x0002) -#define F_LNNO (0x0004) -#define F_VERS (0x0010) /* TMS320C4x code */ -/* F_LSYMS needs to be redefined in your source file */ -#define F_LSYMS_TICOFF (0x0010) /* normal COFF is 0x8 */ - -#define F_10 0x00 /* file built for TMS320C1x devices */ -#define F_20 0x10 /* file built for TMS320C2x devices */ -#define F_25 0x20 /* file built for TMS320C2x/C5x devices */ -#define F_LENDIAN 0x0100 /* 16 bits/word, LSB first */ -#define F_SYMMERGE 0x1000 /* duplicate symbols were removed */ - -/********************** OPTIONAL HEADER **********************/ - - -typedef struct -{ - char magic[2]; /* type of file (0x108) */ - char vstamp[2]; /* version stamp */ - char tsize[4]; /* text size in bytes, padded to FW bdry*/ - char dsize[4]; /* initialized data " " */ - char bsize[4]; /* uninitialized data " " */ - char entry[4]; /* entry pt. */ - char text_start[4]; /* base of text used for this file */ - char data_start[4]; /* base of data used for this file */ -} -AOUTHDR; - - -#define AOUTHDRSZ 28 -#define AOUTSZ 28 - - -/********************** SECTION HEADER **********************/ -/* COFF0, COFF1 */ -struct external_scnhdr_v01 { - char s_name[8]; /* section name */ - char s_paddr[4]; /* physical address, aliased s_nlib */ - char s_vaddr[4]; /* virtual address */ - char s_size[4]; /* section size (in WORDS) */ - char s_scnptr[4]; /* file ptr to raw data for section */ - char s_relptr[4]; /* file ptr to relocation */ - char s_lnnoptr[4]; /* file ptr to line numbers */ - char s_nreloc[2]; /* number of relocation entries */ - char s_nlnno[2]; /* number of line number entries*/ - char s_flags[2]; /* flags */ - char s_reserved[1]; /* reserved */ - char s_page[1]; /* section page number (LOAD) */ -}; - -/* COFF2 */ -struct external_scnhdr { - char s_name[8]; /* section name */ - char s_paddr[4]; /* physical address, aliased s_nlib */ - char s_vaddr[4]; /* virtual address */ - char s_size[4]; /* section size (in WORDS) */ - char s_scnptr[4]; /* file ptr to raw data for section */ - char s_relptr[4]; /* file ptr to relocation */ - char s_lnnoptr[4]; /* file ptr to line numbers */ - char s_nreloc[4]; /* number of relocation entries */ - char s_nlnno[4]; /* number of line number entries*/ - char s_flags[4]; /* flags */ - char s_reserved[2]; /* reserved */ - char s_page[2]; /* section page number (LOAD) */ -}; - -/* - * Special section flags - */ - -/* TI COFF defines these flags; - STYP_CLINK: the section should be excluded from the final - linker output if there are no references found to any symbol in the section - STYP_BLOCK: the section should be blocked, i.e. if the section would cross - a page boundary, it is started at a page boundary instead. - TI COFF puts the section alignment power of two in the section flags - e.g. 2**N is alignment, flags |= (N & 0xF) << 8 -*/ -#define STYP_CLINK (0x4000) -#define STYP_BLOCK (0x1000) -#define STYP_ALIGN (0x0F00) /* TI COFF stores section alignment here */ - -#define SCNHDR_V01 struct external_scnhdr_v01 -#define SCNHDR struct external_scnhdr -#define SCNHSZ_V01 40 /* for v0 and v1 */ -#define SCNHSZ 48 - -/* COFF2 changes the offsets and sizes of these fields - Assume we're dealing with the COFF2 scnhdr structure, and adjust - accordingly. Note: The GNU C versions of some of these macros - are necessary in order to avoid compile time warnings triggered - gcc's array bounds checking. The PUT_SCNHDR_PAGE macro also has - the advantage on not evaluating LOC twice. */ - -#define GET_SCNHDR_NRELOC(ABFD, LOC) \ - (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, LOC)) -#define PUT_SCNHDR_NRELOC(ABFD, VAL, LOC) \ - (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, LOC)) -#ifdef __GNUC__ -#define GET_SCNHDR_NLNNO(ABFD, LOC) \ - ({ \ - int nlnno; \ - char * ptr = (LOC); \ - if (COFF2_P (ABFD)) \ - nlnno = H_GET_32 (ABFD, ptr); \ - else \ - nlnno = H_GET_16 (ABFD, ptr - 2); \ - nlnno; \ - }) -#define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \ - do \ - { \ - char * ptr = (LOC); \ - if (COFF2_P (ABFD)) \ - H_PUT_32 (ABFD, VAL, ptr); \ - else \ - H_PUT_16 (ABFD, VAL, ptr - 2); \ - } \ - while (0) -#define GET_SCNHDR_FLAGS(ABFD, LOC) \ - ({ \ - int flags; \ - char * ptr = (LOC); \ - if (COFF2_P (ABFD)) \ - flags = H_GET_32 (ABFD, ptr); \ - else \ - flags = H_GET_16 (ABFD, ptr - 4); \ - flags; \ - }) -#define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \ - do \ - { \ - char * ptr = (LOC); \ - if (COFF2_P (ABFD)) \ - H_PUT_32 (ABFD, VAL, ptr); \ - else \ - H_PUT_16 (ABFD, VAL, ptr - 4); \ - } \ - while (0) -#define GET_SCNHDR_PAGE(ABFD, LOC) \ - ({ \ - unsigned page; \ - char * ptr = (LOC); \ - if (COFF2_P (ABFD)) \ - page = H_GET_16 (ABFD, ptr); \ - else \ - page = (unsigned) H_GET_8 (ABFD, ptr - 7); \ - page; \ - }) -/* On output, make sure that the "reserved" field is zero. */ -#define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \ - do \ - { \ - char * ptr = (LOC); \ - if (COFF2_P (ABFD)) \ - H_PUT_16 (ABFD, VAL, ptr); \ - else \ - { \ - H_PUT_8 (ABFD, VAL, ptr - 7); \ - H_PUT_8 (ABFD, 0, ptr - 8); \ - } \ - } \ - while (0) -#else -#define GET_SCNHDR_NLNNO(ABFD, LOC) \ - (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 2)) -#define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \ - (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 2)) -#define GET_SCNHDR_FLAGS(ABFD, LOC) \ - (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 4)) -#define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \ - (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 4)) -#define GET_SCNHDR_PAGE(ABFD, LOC) \ - (COFF2_P (ABFD) ? H_GET_16 (ABFD, LOC) : (unsigned) H_GET_8 (ABFD, (LOC) - 7)) -/* On output, make sure that the "reserved" field is zero. */ -#define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \ - (COFF2_P (ABFD) \ - ? H_PUT_16 (ABFD, VAL, LOC) \ - : H_PUT_8 (ABFD, VAL, (LOC) - 7), H_PUT_8 (ABFD, 0, (LOC) - 8)) -#endif - - -/* TI COFF stores section size as number of bytes (address units, not octets), - so adjust to be number of octets, which is what BFD expects */ -#define GET_SCNHDR_SIZE(ABFD, SZP) \ - (H_GET_32 (ABFD, SZP) * bfd_octets_per_byte (ABFD)) -#define PUT_SCNHDR_SIZE(ABFD, SZ, SZP) \ - H_PUT_32 (ABFD, (SZ) / bfd_octets_per_byte (ABFD), SZP) - -#define COFF_ADJUST_SCNHDR_IN_POST(ABFD, EXT, INT) \ - do \ - { \ - ((struct internal_scnhdr *)(INT))->s_page = \ - GET_SCNHDR_PAGE (ABFD, ((SCNHDR *)(EXT))->s_page); \ - } \ - while (0) - -/* The line number and reloc overflow checking in coff_swap_scnhdr_out in - coffswap.h doesn't use PUT_X for s_nlnno and s_nreloc. - Due to different sized v0/v1/v2 section headers, we have to re-write these - fields. - */ -#define COFF_ADJUST_SCNHDR_OUT_POST(ABFD, INT, EXT) \ - do \ - { \ - PUT_SCNHDR_NLNNO (ABFD, ((struct internal_scnhdr *)(INT))->s_nlnno, \ - ((SCNHDR *)(EXT))->s_nlnno); \ - PUT_SCNHDR_NRELOC (ABFD, ((struct internal_scnhdr *)(INT))->s_nreloc,\ - ((SCNHDR *)(EXT))->s_nreloc); \ - PUT_SCNHDR_FLAGS (ABFD, ((struct internal_scnhdr *)(INT))->s_flags, \ - ((SCNHDR *)(EXT))->s_flags); \ - PUT_SCNHDR_PAGE (ABFD, ((struct internal_scnhdr *)(INT))->s_page, \ - ((SCNHDR *)(EXT))->s_page); \ - } \ - while (0) - -/* - * names of "special" sections - */ -#define _TEXT ".text" -#define _DATA ".data" -#define _BSS ".bss" -#define _CINIT ".cinit" /* initialized C data */ -#define _SCONST ".const" /* constants */ -#define _SWITCH ".switch" /* switch tables */ -#define _STACK ".stack" /* C stack */ -#define _SYSMEM ".sysmem" /* used for malloc et al. syscalls */ - -/********************** LINE NUMBERS **********************/ - -/* 1 line number entry for every "breakpointable" source line in a section. - * Line numbers are grouped on a per function basis; first entry in a function - * grouping will have l_lnno = 0 and in place of physical address will be the - * symbol table index of the function name. - */ -struct external_lineno { - union { - char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/ - char l_paddr[4]; /* (physical) address of line number */ - } l_addr; - char l_lnno[2]; /* line number */ -}; - -#define LINENO struct external_lineno -#define LINESZ 6 - - -/********************** SYMBOLS **********************/ - -/* NOTE: this is what a local label looks like in assembly source; what it - looks like in COFF output is undefined */ -#define TICOFF_LOCAL_LABEL_P(NAME) \ -((NAME[0] == '$' && NAME[1] >= '0' && NAME[1] <= '9' && NAME[2] == '\0') \ - || NAME[strlen(NAME)-1] == '?') - -#define E_SYMNMLEN 8 /* # characters in a symbol name */ -#define E_FILNMLEN 14 /* # characters in a file name */ -#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ - -struct external_syment -{ - union { - char e_name[E_SYMNMLEN]; - struct { - char e_zeroes[4]; - char e_offset[4]; - } e; - } e; - char e_value[4]; - char e_scnum[2]; - char e_type[2]; - char e_sclass[1]; - char e_numaux[1]; -}; - - -#define N_BTMASK (017) -#define N_TMASK (060) -#define N_BTSHFT (4) -#define N_TSHIFT (2) - - -union external_auxent { - struct { - char x_tagndx[4]; /* str, un, or enum tag indx */ - union { - struct { - char x_lnno[2]; /* declaration line number */ - char x_size[2]; /* str/union/array size */ - } x_lnsz; - char x_fsize[4]; /* size of function */ - } x_misc; - union { - struct { /* if ISFCN, tag, or .bb */ - char x_lnnoptr[4]; /* ptr to fcn line # */ - char x_endndx[4]; /* entry ndx past block end */ - } x_fcn; - struct { /* if ISARY, up to 4 dimen. */ - char x_dimen[E_DIMNUM][2]; - } x_ary; - } x_fcnary; - char x_tvndx[2]; /* tv index */ - } x_sym; - - union { - char x_fname[E_FILNMLEN]; - struct { - char x_zeroes[4]; - char x_offset[4]; - } x_n; - } x_file; - - struct { - char x_scnlen[4]; /* section length */ - char x_nreloc[2]; /* # relocation entries */ - char x_nlinno[2]; /* # line numbers */ - } x_scn; - - struct { - char x_tvfill[4]; /* tv fill value */ - char x_tvlen[2]; /* length of .tv */ - char x_tvran[2][2]; /* tv range */ - } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ - - -}; - -#define SYMENT struct external_syment -#define SYMESZ 18 -#define AUXENT union external_auxent -#define AUXESZ 18 - -/* section lengths are in target bytes (not host bytes) */ -#define GET_SCN_SCNLEN(ABFD, EXT) \ - (H_GET_32 (ABFD, (EXT)->x_scn.x_scnlen) * bfd_octets_per_byte (ABFD)) -#define PUT_SCN_SCNLEN(ABFD, INT, EXT) \ - H_PUT_32 (ABFD, (INT) / bfd_octets_per_byte (ABFD), (EXT)->x_scn.x_scnlen) - -/* lnsz size is in bits in COFF file, in bytes in BFD */ -#define GET_LNSZ_SIZE(abfd, ext) \ - (H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size) / (class != C_FIELD ? 8 : 1)) - -#define PUT_LNSZ_SIZE(abfd, in, ext) \ - H_PUT_16 (abfd, ((class != C_FIELD) ? (in) * 8 : (in)), \ - ext->x_sym.x_misc.x_lnsz.x_size) - -/* TI COFF stores offsets for MOS and MOU in bits; BFD expects bytes - Also put the load page flag of the section into the symbol value if it's an - address. */ -#ifndef NEEDS_PAGE -#define NEEDS_PAGE(X) 0 -#define PAGE_MASK 0 -#endif -#define COFF_ADJUST_SYM_IN_POST(ABFD, EXT, INT) \ - do \ - { \ - struct internal_syment *dst = (struct internal_syment *)(INT); \ - if (dst->n_sclass == C_MOS || dst->n_sclass == C_MOU) \ - dst->n_value /= 8; \ - else if (NEEDS_PAGE (dst->n_sclass)) { \ - asection *scn = coff_section_from_bfd_index (abfd, dst->n_scnum); \ - dst->n_value |= (scn->lma & PAGE_MASK); \ - } \ - } \ - while (0) - -#define COFF_ADJUST_SYM_OUT_POST(ABFD, INT, EXT) \ - do \ - { \ - struct internal_syment *src = (struct internal_syment *)(INT); \ - SYMENT *dst = (SYMENT *)(EXT); \ - if (src->n_sclass == C_MOU || src->n_sclass == C_MOS) \ - H_PUT_32 (abfd, src->n_value * 8, dst->e_value); \ - else if (NEEDS_PAGE (src->n_sclass)) { \ - H_PUT_32 (abfd, src->n_value &= ~PAGE_MASK, dst->e_value); \ - } \ - } \ - while (0) - -/* Detect section-relative absolute symbols so they get flagged with a sym - index of -1. -*/ -#define SECTION_RELATIVE_ABSOLUTE_SYMBOL_P(RELOC, SECT) \ - ((*(RELOC)->sym_ptr_ptr)->section->output_section == (SECT) \ - && (RELOC)->howto->name[0] == 'A') - -/********************** RELOCATION DIRECTIVES **********************/ - -struct external_reloc_v0 -{ - char r_vaddr[4]; - char r_symndx[2]; - char r_reserved[2]; - char r_type[2]; -}; - -struct external_reloc -{ - char r_vaddr[4]; - char r_symndx[4]; - char r_reserved[2]; /* extended pmad byte for COFF2 */ - char r_type[2]; -}; - -#define RELOC struct external_reloc -#define RELSZ_V0 10 /* FIXME -- coffcode.h needs fixing */ -#define RELSZ 12 /* for COFF1/2 */ - -/* various relocation types. */ -#define R_ABS 0x0000 /* no relocation */ -#define R_REL13 0x002A /* 13-bit direct reference (???) */ -#define R_PARTLS7 0x0028 /* 7 LSBs of an address */ -#define R_PARTMS9 0x0029 /* 9MSBs of an address */ -#define R_EXTWORD 0x002B /* 23-bit direct reference */ -#define R_EXTWORD16 0x002C /* 16-bit direct reference to 23-bit addr*/ -#define R_EXTWORDMS7 0x002D /* upper 7 bits of 23-bit address */ - -#endif /* COFF_TI_H */ |