diff options
Diffstat (limited to 'gas/ecoff.c')
| -rw-r--r-- | gas/ecoff.c | 214 |
1 files changed, 99 insertions, 115 deletions
diff --git a/gas/ecoff.c b/gas/ecoff.c index cfd0901..ba6ff52 100644 --- a/gas/ecoff.c +++ b/gas/ecoff.c @@ -120,31 +120,31 @@ array, pointer, function, etc. qualifiers. The current base types that I have documentation for are: - btNil -- undefined + btNil -- undefined btAdr -- address - integer same size as ptr - btChar -- character - btUChar -- unsigned character - btShort -- short - btUShort -- unsigned short - btInt -- int - btUInt -- unsigned int - btLong -- long - btULong -- unsigned long - btFloat -- float (real) - btDouble -- Double (real) - btStruct -- Structure (Record) - btUnion -- Union (variant) - btEnum -- Enumerated - btTypedef -- defined via a typedef isymRef - btRange -- subrange of int - btSet -- pascal sets - btComplex -- fortran complex - btDComplex -- fortran double complex - btIndirect -- forward or unnamed typedef - btFixedDec -- Fixed Decimal - btFloatDec -- Float Decimal - btString -- Varying Length Character String - btBit -- Aligned Bit String + btChar -- character + btUChar -- unsigned character + btShort -- short + btUShort -- unsigned short + btInt -- int + btUInt -- unsigned int + btLong -- long + btULong -- unsigned long + btFloat -- float (real) + btDouble -- Double (real) + btStruct -- Structure (Record) + btUnion -- Union (variant) + btEnum -- Enumerated + btTypedef -- defined via a typedef isymRef + btRange -- subrange of int + btSet -- pascal sets + btComplex -- fortran complex + btDComplex -- fortran double complex + btIndirect -- forward or unnamed typedef + btFixedDec -- Fixed Decimal + btFloatDec -- Float Decimal + btString -- Varying Length Character String + btBit -- Aligned Bit String btPicture -- Picture btVoid -- Void (MIPS cc revision >= 2.00) @@ -152,12 +152,12 @@ current type qualifier fields I have documentation for are: - tqNil -- no more qualifiers - tqPtr -- pointer - tqProc -- procedure - tqArray -- array - tqFar -- 8086 far pointers - tqVol -- volatile + tqNil -- no more qualifiers + tqPtr -- pointer + tqProc -- procedure + tqArray -- array + tqFar -- 8086 far pointers + tqVol -- volatile The dense number table is used in the front ends, and disappears by @@ -266,7 +266,7 @@ } Mips-tdump produces the following information: - + Global file header: magic number 0x162 # sections 2 @@ -275,12 +275,12 @@ symbolic header size 96 optional header 56 flags 0x0 - + Symbolic header, magic number = 0x7009, vstamp = 1.31: - + Info Offset Number Bytes ==== ====== ====== ===== - + Line numbers 380 4 4 [13] Dense numbers 0 0 0 Procedures Tables 384 1 52 @@ -292,14 +292,14 @@ File Tables 1008 2 144 Relative Files 0 0 0 External Symbols 1152 20 320 - + File #0, "hello2.c" - + Name index = 1 Readin = No Merge = No Endian = LITTLE Debug level = G2 Language = C Adr = 0x00000000 - + Info Start Number Size Offset ==== ===== ====== ==== ====== Local strings 0 15 15 784 @@ -309,7 +309,7 @@ Procedures 0 1 52 384 Auxiliary symbols 0 14 56 628 Relative Files 0 0 0 0 - + There are 6 local symbols, starting at 436 Symbol# 0: "hello2.c" @@ -953,7 +953,7 @@ typedef struct efdr { } efdr_t; /* Pre-initialized extended file structure. */ -static const efdr_t init_file = +static const efdr_t init_file = { { /* FDR structure */ 0, /* adr: memory address of beginning of file */ @@ -1401,6 +1401,7 @@ static int debug = 0; /* trace functions */ #endif static int stabs_seen = 0; /* != 0 if stabs have been seen */ +static int current_file_idx; /* Pseudo symbol to use when putting stabs into the symbol table. */ #ifndef STABS_SYMBOL @@ -1462,10 +1463,7 @@ static unsigned long ecoff_build_ss static unsigned long ecoff_build_fdr PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, unsigned long offset)); -static unsigned long ecoff_build_ext - PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, - unsigned long offset, varray_t *ext_strings, - struct hash_control *ext_str_hash)); +static void ecoff_setup_ext PARAMS ((void)); static page_t *allocate_cluster PARAMS ((unsigned long npages)); static page_t *allocate_page PARAMS ((void)); static scope_t *allocate_scope PARAMS ((void)); @@ -1936,7 +1934,7 @@ add_aux_sym_tir (t, state, hash_tbl) ret = vp->num_allocated++; /* Add bitfield length if it exists. - + NOTE: Mips documentation claims bitfield goes at the end of the AUX record, but the DECstation compiler emits it here. (This would only make a difference for enum bitfields.) @@ -2232,7 +2230,7 @@ add_file (file_name, indx) &file_desc.last->datum->file[file_desc.objects_last_page++]; *fil_ptr = init_file; - fil_ptr->file_index = indx; + fil_ptr->file_index = current_file_idx++; ++file_desc.num_allocated; /* Allocate the string hash table. */ @@ -2373,7 +2371,7 @@ ecoff_directive_begin (ignore) demand_empty_rest_of_line (); return; } - + name = input_line_pointer; name_end = get_symbol_end (); @@ -2951,7 +2949,7 @@ ecoff_directive_end (ignore) name = input_line_pointer; name_end = get_symbol_end (); - + ch = *name; if (! is_name_beginner (ch)) { @@ -3120,7 +3118,13 @@ ecoff_directive_frame (ignore) cur_proc_ptr->pdr.pcreg = tc_get_register (0); +#if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according + to Sandro. I don't yet know where this value should be stored, if + anywhere. */ demand_empty_rest_of_line (); +#else + s_ignore (42); +#endif } /* Parse .mask directives. */ @@ -3289,6 +3293,7 @@ ecoff_stab (what, string, type, other, desc) st_t st; sc_t sc; symint_t indx; + localsym_t *hold = NULL; /* We don't handle .stabd. */ if (what != 's' && what != 'n') @@ -3359,7 +3364,7 @@ ecoff_stab (what, string, type, other, desc) if (listing && (type == N_SO || type == N_SOL)) listing_source_file (string); #endif - + if (isdigit (*input_line_pointer) || *input_line_pointer == '-' || *input_line_pointer == '+') @@ -3401,8 +3406,17 @@ ecoff_stab (what, string, type, other, desc) indx = ECOFF_MARK_STAB (type); } + /* Don't store the stabs symbol we are creating as the type of the + ECOFF symbol. We want to compute the type of the ECOFF symbol + independently. */ + if (sym != (symbolS *) NULL) + hold = sym->ecoff_symbol; + (void) add_ecoff_symbol (string, st, sc, sym, value, indx); + if (sym != (symbolS *) NULL) + sym->ecoff_symbol = hold; + /* Restore normal file type. */ cur_file_ptr = save_file_ptr; } @@ -3546,7 +3560,7 @@ ecoff_build_lineno (backend, buf, bufend, offset, linecntptr) } last = (lineno_list_t *) NULL; - } + } totcount += count; @@ -3778,8 +3792,9 @@ ecoff_build_symbols (backend, buf, bufend, offset) seg = S_GET_SEGMENT (as_sym); segname = segment_name (seg); - if (S_IS_EXTERNAL (as_sym) - || ! S_IS_DEFINED (as_sym)) + if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) + && (S_IS_EXTERNAL (as_sym) + || ! S_IS_DEFINED (as_sym))) st = st_Global; else if (seg == text_section) st = st_Label; @@ -3954,7 +3969,8 @@ ecoff_build_symbols (backend, buf, bufend, offset) /* Record the local symbol index and file number in case this is an external symbol. Note that this destroys the asym.index field. */ - if (as_sym != (symbolS *) NULL) + if (as_sym != (symbolS *) NULL + && as_sym->ecoff_symbol == sym_ptr) { if (sym_ptr->ecoff_sym.asym.st == st_Proc || sym_ptr->ecoff_sym.asym.st == st_StaticProc) @@ -3991,7 +4007,7 @@ ecoff_build_procs (backend, buf, bufend, offset) vlinks_t *file_link; pdr_out = *buf + offset; - + first_fil = 1; iproc = 0; @@ -4082,7 +4098,7 @@ ecoff_build_aux (backend, buf, bufend, offset) bigendian = stdoutput->xvec->header_byteorder_big_p; aux_out = (union aux_ext *) (*buf + offset); - + iaux = 0; /* The aux entries are stored by file. */ @@ -4308,27 +4324,15 @@ ecoff_build_fdr (backend, buf, bufend, offset) return offset + ifile * external_fdr_size; } -/* Swap out the external symbols. These are the symbols that the - machine independent code has put in the symtab for the BFD. */ +/* Set up the external symbols. These are supposed to be handled by + the backend. This routine just gets the right information and + calls a backend function to deal with it. */ -static unsigned long -ecoff_build_ext (backend, buf, bufend, offset, ext_strings, ext_str_hash) - const struct ecoff_debug_swap *backend; - char **buf; - char **bufend; - unsigned long offset; - varray_t *ext_strings; - struct hash_control *ext_str_hash; +static void +ecoff_setup_ext () { - const bfd_size_type external_ext_size = backend->external_ext_size; - void (* const swap_ext_out) PARAMS ((bfd *, const EXTR *, PTR)) - = backend->swap_ext_out; register symbolS *sym; - char *ext_out; - long iext; - ext_out = *buf + offset; - iext = 0; for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) { if (sym->ecoff_symbol == NULL) @@ -4344,20 +4348,8 @@ ecoff_build_ext (backend, buf, bufend, offset, ext_strings, ext_str_hash) sym->ecoff_symbol->ecoff_sym.asym.index = indexNil; } - sym->ecoff_symbol->ecoff_sym.asym.iss = - add_string (ext_strings, ext_str_hash, S_GET_NAME (sym), - (shash_t **) NULL); - if (*bufend - ext_out < external_ext_size) - ext_out = ecoff_add_bytes (buf, bufend, ext_out, external_ext_size); - (*swap_ext_out) (stdoutput, &sym->ecoff_symbol->ecoff_sym, ext_out); -#ifdef obj_set_sym_index - obj_set_sym_index (as_sym->bsym, iext); -#endif - ext_out += external_ext_size; - ++iext; + obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym); } - - return offset + iext * external_ext_size; } /* Build the ECOFF dbeugging information. */ @@ -4379,12 +4371,6 @@ ecoff_build_debug (hdr, bufp, backend) char *buf; char *bufend; unsigned long offset; - char *extbuf; - char *extbufend; - unsigned long extoffset; - varray_t ext_strings; - static varray_t init_ext_strings = INIT_VARRAY (char); - struct hash_control *ext_str_hash; /* Make sure we have a file. */ if (first_file == (efdr_t *) NULL) @@ -4497,24 +4483,6 @@ ecoff_build_debug (hdr, bufp, backend) offset = ecoff_build_ss (backend, &buf, &bufend, offset); hdr->issMax = offset - hdr->cbSsOffset; - /* Build the external symbols and external strings. We build these - now because we want to copy out the external strings now. We - copy out the external symbol information down below. */ - extbuf = xmalloc (PAGE_SIZE); - extbufend = extbuf + PAGE_SIZE; - ext_strings = init_ext_strings; - ext_str_hash = hash_new (); - extoffset = ecoff_build_ext (backend, &extbuf, &extbufend, - (unsigned long) 0, &ext_strings, - ext_str_hash); - - /* Copy out the external strings. */ - hdr->cbSsExtOffset = offset; - offset += ecoff_build_strings (&buf, &bufend, offset, &ext_strings); - offset = ecoff_padding_adjust (backend, &buf, &bufend, offset, - (char **) NULL); - hdr->issExtMax = offset - hdr->cbSsExtOffset; - /* We don't use relative file descriptors. */ hdr->crfd = 0; hdr->cbRfdOffset = 0; @@ -4524,13 +4492,13 @@ ecoff_build_debug (hdr, bufp, backend) offset = ecoff_build_fdr (backend, &buf, &bufend, offset); hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size; - /* Copy out the external symbols. */ - hdr->cbExtOffset = offset; - if (bufend - (buf + offset) < extoffset) - (void) ecoff_add_bytes (&buf, &bufend, buf + offset, extoffset); - memcpy (buf + offset, extbuf, extoffset); - offset += extoffset; - hdr->iextMax = (offset - hdr->cbExtOffset) / backend->external_ext_size; + /* Set up the external symbols, which are handled by the BFD back + end. */ + hdr->issExtMax = 0; + hdr->cbSsExtOffset = 0; + hdr->iextMax = 0; + hdr->cbExtOffset = 0; + ecoff_setup_ext (); know ((offset & (backend->debug_align - 1)) == 0); @@ -4931,4 +4899,20 @@ allocate_lineno_list () return ptr; } +ecoff_set_gp_prolog_size (sz) + int sz; +{ + if (cur_proc_ptr == 0) + abort (); + + cur_proc_ptr->pdr.gp_prologue = sz; + if (cur_proc_ptr->pdr.gp_prologue != sz) + { + as_warn ("GP prologue size exceeds field size, using 0 instead"); + cur_proc_ptr->pdr.gp_prologue = 0; + } + + cur_proc_ptr->pdr.gp_used = 1; +} + #endif /* ECOFF_DEBUGGING */ |