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Diffstat (limited to 'gdb/os9kread.c')
| -rw-r--r-- | gdb/os9kread.c | 1624 |
1 files changed, 1624 insertions, 0 deletions
diff --git a/gdb/os9kread.c b/gdb/os9kread.c new file mode 100644 index 00000000000..673d415c6e2 --- /dev/null +++ b/gdb/os9kread.c @@ -0,0 +1,1624 @@ +/* Read os9/os9k symbol tables and convert to internal format, for GDB. + Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 96, 1998 + Free Software Foundation, Inc. + +This file is part of GDB. + +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. */ + +/* This module provides three functions: os9k_symfile_init, + which initializes to read a symbol file; os9k_new_init, which + discards existing cached information when all symbols are being + discarded; and os9k_symfile_read, which reads a symbol table + from a file. + + os9k_symfile_read only does the minimum work necessary for letting the + user "name" things symbolically; it does not read the entire symtab. + Instead, it reads the external and static symbols and puts them in partial + symbol tables. When more extensive information is requested of a + file, the corresponding partial symbol table is mutated into a full + fledged symbol table by going back and reading the symbols + for real. os9k_psymtab_to_symtab() is the function that does this */ + +#include "defs.h" +#include "gdb_string.h" +#include <stdio.h> + +#if defined(USG) || defined(__CYGNUSCLIB__) +#include <sys/types.h> +#include <fcntl.h> +#endif + +#include "obstack.h" +#include "gdb_stat.h" +#include <ctype.h> +#include "symtab.h" +#include "breakpoint.h" +#include "command.h" +#include "target.h" +#include "gdbcore.h" /* for bfd stuff */ +#include "libaout.h" /* FIXME Secret internal BFD stuff for a.out */ +#include "symfile.h" +#include "objfiles.h" +#include "buildsym.h" +#include "gdb-stabs.h" +#include "demangle.h" +#include "language.h" /* Needed inside partial-stab.h */ +#include "complaints.h" +#include "os9k.h" +#include "stabsread.h" + +/* Each partial symbol table entry contains a pointer to private data for the + read_symtab() function to use when expanding a partial symbol table entry + to a full symbol table entry. + + For dbxread this structure contains the offset within the file symbol table + of first local symbol for this file, and count of the section + of the symbol table devoted to this file's symbols (actually, the section + bracketed may contain more than just this file's symbols). It also contains + further information needed to locate the symbols if they are in an ELF file. + + If ldsymcnt is 0, the only reason for this thing's existence is the + dependency list. Nothing else will happen when it is read in. */ + +#define LDSYMOFF(p) (((struct symloc *)((p)->read_symtab_private))->ldsymoff) +#define LDSYMCNT(p) (((struct symloc *)((p)->read_symtab_private))->ldsymnum) + +struct symloc { + int ldsymoff; + int ldsymnum; +}; + +/* Remember what we deduced to be the source language of this psymtab. */ +static enum language psymtab_language = language_unknown; + +/* keep partial symbol table file nested depth */ +static int psymfile_depth = 0; + +/* keep symbol table file nested depth */ +static int symfile_depth = 0; + +/* Nonzero means give verbose info on gdb action. From main.c. */ +extern int info_verbose; + +extern int previous_stab_code; + +/* Name of last function encountered. Used in Solaris to approximate + object file boundaries. */ +static char *last_function_name; + +/* Complaints about the symbols we have encountered. */ +extern struct complaint lbrac_complaint; + +extern struct complaint unknown_symtype_complaint; + +extern struct complaint unknown_symchar_complaint; + +extern struct complaint lbrac_rbrac_complaint; + +extern struct complaint repeated_header_complaint; + +extern struct complaint repeated_header_name_complaint; + +#if 0 +static struct complaint lbrac_unmatched_complaint = + {"unmatched Increment Block Entry before symtab pos %d", 0, 0}; + +static struct complaint lbrac_mismatch_complaint = + {"IBE/IDE symbol mismatch at symtab pos %d", 0, 0}; +#endif + +/* Local function prototypes */ + +static void +read_minimal_symbols PARAMS ((struct objfile *, struct section_offsets *)); + +static void +os9k_read_ofile_symtab PARAMS ((struct partial_symtab *)); + +static void +os9k_psymtab_to_symtab PARAMS ((struct partial_symtab *)); + +static void +os9k_psymtab_to_symtab_1 PARAMS ((struct partial_symtab *)); + +static void +read_os9k_psymtab PARAMS ((struct section_offsets *, struct objfile *, + CORE_ADDR, int)); + +static int +fill_sym PARAMS ((FILE *, bfd *)); + +static void +os9k_symfile_init PARAMS ((struct objfile *)); + +static void +os9k_new_init PARAMS ((struct objfile *)); + +static void +os9k_symfile_read PARAMS ((struct objfile *, struct section_offsets *, int)); + +static void +os9k_symfile_finish PARAMS ((struct objfile *)); + +static void +os9k_process_one_symbol PARAMS ((int, int, CORE_ADDR, char *, + struct section_offsets *, struct objfile *)); + +static struct partial_symtab * +os9k_start_psymtab PARAMS ((struct objfile *, struct section_offsets *, char *, + CORE_ADDR, int, int, struct partial_symbol **, + struct partial_symbol **)); + +static struct partial_symtab * +os9k_end_psymtab PARAMS ((struct partial_symtab *, char **, int, int, CORE_ADDR, + struct partial_symtab **, int)); + +static void +record_minimal_symbol PARAMS ((char *, CORE_ADDR, int, struct objfile *, + struct section_offsets *)); + +#define HANDLE_RBRAC(val) \ + if ((val) > pst->texthigh) pst->texthigh = (val); + +#define SWAP_STBHDR(hdrp, abfd) \ + { \ + (hdrp)->fmtno = bfd_get_16(abfd, (unsigned char *)&(hdrp)->fmtno); \ + (hdrp)->crc = bfd_get_32(abfd, (unsigned char *)&(hdrp)->crc); \ + (hdrp)->offset = bfd_get_32(abfd, (unsigned char *)&(hdrp)->offset); \ + (hdrp)->nsym = bfd_get_32(abfd, (unsigned char *)&(hdrp)->nsym); \ + } +#define SWAP_STBSYM(symp, abfd) \ + { \ + (symp)->value = bfd_get_32(abfd, (unsigned char *)&(symp)->value); \ + (symp)->type = bfd_get_16(abfd, (unsigned char *)&(symp)->type); \ + (symp)->stroff = bfd_get_32(abfd, (unsigned char *)&(symp)->stroff); \ + } +#define N_DATA 0 +#define N_BSS 1 +#define N_RDATA 2 +#define N_IDATA 3 +#define N_TEXT 4 +#define N_ABS 6 + +static void +record_minimal_symbol (name, address, type, objfile, section_offsets) + char *name; + CORE_ADDR address; + int type; + struct objfile *objfile; + struct section_offsets *section_offsets; +{ + enum minimal_symbol_type ms_type; + + switch (type) + { + case N_TEXT: + ms_type = mst_text; + address += ANOFFSET(section_offsets, SECT_OFF_TEXT); + break; + case N_DATA: + ms_type = mst_data; + break; + case N_BSS: + ms_type = mst_bss; + break; + case N_RDATA: + ms_type = mst_bss; + break; + case N_IDATA: + ms_type = mst_data; + break; + case N_ABS: + ms_type = mst_abs; + break; + default: + ms_type = mst_unknown; break; + } + + prim_record_minimal_symbol (name, address, ms_type, objfile); +} + +/* read and process .stb file and store in minimal symbol table */ +typedef char mhhdr[80]; +struct stbhdr { + mhhdr comhdr; + char * name; + short fmtno; + int crc; + int offset; + int nsym; + char *pad; +}; +struct stbsymbol { + int value; + short type; + int stroff; +}; +#define STBSYMSIZE 10 + +static void +read_minimal_symbols(objfile, section_offsets) + struct objfile *objfile; + struct section_offsets *section_offsets; +{ +FILE *fp; +bfd *abfd; +struct stbhdr hdr; +struct stbsymbol sym; +int ch, i, j, off; +char buf[64], buf1[128]; + + fp = objfile->auxf1; + if (fp == NULL) return; + abfd = objfile->obfd; + fread(&hdr.comhdr[0], sizeof(mhhdr), 1, fp); + i = 0; + ch = getc(fp); + while (ch != -1) { + buf[i] = (char)ch; + i++; + if (ch == 0) break; + ch = getc(fp); + }; + if (i%2) ch=getc(fp); + hdr.name = &buf[0]; + + fread(&hdr.fmtno, sizeof(hdr.fmtno), 1, fp); + fread(&hdr.crc, sizeof(hdr.crc), 1, fp); + fread(&hdr.offset, sizeof(hdr.offset), 1, fp); + fread(&hdr.nsym, sizeof(hdr.nsym), 1, fp); + SWAP_STBHDR(&hdr, abfd); + + /* read symbols */ + init_minimal_symbol_collection(); + off = hdr.offset; + for (i = hdr.nsym; i > 0; i--) { + fseek(fp, (long)off, 0); + fread(&sym.value, sizeof(sym.value), 1, fp); + fread(&sym.type, sizeof(sym.type), 1, fp); + fread(&sym.stroff, sizeof(sym.stroff), 1, fp); + SWAP_STBSYM (&sym, abfd); + fseek(fp, (long)sym.stroff, 0); + j = 0; + ch = getc(fp); + while (ch != -1) { + buf1[j] = (char)ch; + j++; + if (ch == 0) break; + ch = getc(fp); + }; + record_minimal_symbol(buf1, sym.value, sym.type&7, objfile, section_offsets); + off += STBSYMSIZE; + }; + install_minimal_symbols (objfile); + return; +} + +/* Scan and build partial symbols for a symbol file. + We have been initialized by a call to os9k_symfile_init, which + put all the relevant info into a "struct os9k_symfile_info", + hung off the objfile structure. + + SECTION_OFFSETS contains offsets relative to which the symbols in the + various sections are (depending where the sections were actually loaded). + MAINLINE is true if we are reading the main symbol + table (as opposed to a shared lib or dynamically loaded file). */ + +static void +os9k_symfile_read (objfile, section_offsets, mainline) + struct objfile *objfile; + struct section_offsets *section_offsets; + int mainline; /* FIXME comments above */ +{ + bfd *sym_bfd; + struct cleanup *back_to; + + sym_bfd = objfile->obfd; + /* If we are reinitializing, or if we have never loaded syms yet, init */ + if (mainline || objfile->global_psymbols.size == 0 || + objfile->static_psymbols.size == 0) + init_psymbol_list (objfile, DBX_SYMCOUNT (objfile)); + + free_pending_blocks (); + back_to = make_cleanup ((make_cleanup_func) really_free_pendings, 0); + + make_cleanup ((make_cleanup_func) discard_minimal_symbols, 0); + read_minimal_symbols (objfile, section_offsets); + + /* Now that the symbol table data of the executable file are all in core, + process them and define symbols accordingly. */ + read_os9k_psymtab (section_offsets, objfile, + DBX_TEXT_ADDR (objfile), + DBX_TEXT_SIZE (objfile)); + + do_cleanups (back_to); +} + +/* Initialize anything that needs initializing when a completely new + symbol file is specified (not just adding some symbols from another + file, e.g. a shared library). */ + +static void +os9k_new_init (ignore) + struct objfile *ignore; +{ + stabsread_new_init (); + buildsym_new_init (); + psymfile_depth = 0; +/* + init_header_files (); +*/ +} + +/* os9k_symfile_init () + It is passed a struct objfile which contains, among other things, + the BFD for the file whose symbols are being read, and a slot for a pointer + to "private data" which we fill with goodies. + + Since BFD doesn't know how to read debug symbols in a format-independent + way (and may never do so...), we have to do it ourselves. We will never + be called unless this is an a.out (or very similar) file. + FIXME, there should be a cleaner peephole into the BFD environment here. */ + +static void +os9k_symfile_init (objfile) + struct objfile *objfile; +{ + bfd *sym_bfd = objfile->obfd; + char *name = bfd_get_filename (sym_bfd); + char dbgname[512], stbname[512]; + FILE *symfile = 0; + FILE *minfile = 0; + asection *text_sect; + + strcpy(dbgname, name); + strcat(dbgname, ".dbg"); + strcpy(stbname, name); + strcat(stbname, ".stb"); + + if ((symfile = fopen(dbgname, "r")) == NULL) { + warning("Symbol file %s not found", dbgname); + } + objfile->auxf2 = symfile; + + if ((minfile = fopen(stbname, "r")) == NULL) { + warning("Symbol file %s not found", stbname); + } + objfile->auxf1 = minfile; + + /* Allocate struct to keep track of the symfile */ + objfile->sym_stab_info = (struct dbx_symfile_info *) + xmmalloc (objfile -> md, sizeof (struct dbx_symfile_info)); + DBX_SYMFILE_INFO (objfile)->stab_section_info = NULL; + + text_sect = bfd_get_section_by_name (sym_bfd, ".text"); + if (!text_sect) + error ("Can't find .text section in file"); + DBX_TEXT_ADDR (objfile) = bfd_section_vma (sym_bfd, text_sect); + DBX_TEXT_SIZE (objfile) = bfd_section_size (sym_bfd, text_sect); + + DBX_SYMBOL_SIZE (objfile) = 0; /* variable size symbol */ + DBX_SYMCOUNT (objfile) = 0; /* used to be bfd_get_symcount(sym_bfd) */ + DBX_SYMTAB_OFFSET (objfile) = 0; /* used to be SYMBOL_TABLE_OFFSET */ +} + +/* Perform any local cleanups required when we are done with a particular + objfile. I.E, we are in the process of discarding all symbol information + for an objfile, freeing up all memory held for it, and unlinking the + objfile struct from the global list of known objfiles. */ + +static void +os9k_symfile_finish (objfile) + struct objfile *objfile; +{ + if (objfile->sym_stab_info != NULL) + { + mfree (objfile -> md, objfile->sym_stab_info); + } +/* + free_header_files (); +*/ +} + + +struct st_dbghdr { + int sync; + short rev; + int crc; + short os; + short cpu; +}; +#define SYNC (int)0xefbefeca + +#define SWAP_DBGHDR(hdrp, abfd) \ + { \ + (hdrp)->sync = bfd_get_32(abfd, (unsigned char *)&(hdrp)->sync); \ + (hdrp)->rev = bfd_get_16(abfd, (unsigned char *)&(hdrp)->rev); \ + (hdrp)->crc = bfd_get_32(abfd, (unsigned char *)&(hdrp)->crc); \ + (hdrp)->os = bfd_get_16(abfd, (unsigned char *)&(hdrp)->os); \ + (hdrp)->cpu = bfd_get_16(abfd, (unsigned char *)&(hdrp)->cpu); \ + } + +#define N_SYM_CMPLR 0 +#define N_SYM_SLINE 1 +#define N_SYM_SYM 2 +#define N_SYM_LBRAC 3 +#define N_SYM_RBRAC 4 +#define N_SYM_SE 5 + +struct internal_symstruct { + short n_type; + short n_desc; + long n_value; + char * n_strx; +}; +static struct internal_symstruct symbol; +static struct internal_symstruct *symbuf = &symbol; +static char strbuf[4096]; +static struct st_dbghdr dbghdr; +static short cmplrid; + +#define VER_PRE_ULTRAC ((short)4) +#define VER_ULTRAC ((short)5) + +static int +fill_sym (dbg_file, abfd) + FILE *dbg_file; + bfd *abfd; +{ +short si, nmask; +long li; +int ii; +char *p; + + int nbytes = fread(&si, sizeof(si), 1, dbg_file); + if (nbytes == 0) + return 0; + if (nbytes < 0) + perror_with_name ("reading .dbg file."); + symbuf->n_desc = 0; + symbuf->n_value = 0; + symbuf->n_strx = NULL; + symbuf->n_type = bfd_get_16 (abfd, (unsigned char *)&si); + symbuf->n_type = 0xf & symbuf->n_type; + switch (symbuf->n_type) + { + case N_SYM_CMPLR: + fread(&si, sizeof(si), 1, dbg_file); + symbuf->n_desc = bfd_get_16(abfd, (unsigned char *)&si); + cmplrid = symbuf->n_desc & 0xff; + break; + case N_SYM_SLINE: + fread(&li, sizeof(li), 1, dbg_file); + symbuf->n_value = bfd_get_32(abfd, (unsigned char *)&li); + fread(&li, sizeof(li), 1, dbg_file); + li = bfd_get_32(abfd, (unsigned char *)&li); + symbuf->n_strx = (char *)(li >> 12); + symbuf->n_desc = li & 0xfff; + break; + case N_SYM_SYM: + fread(&li, sizeof(li), 1, dbg_file); + symbuf->n_value = bfd_get_32(abfd, (unsigned char *)&li); + si = 0; + do { + ii = getc(dbg_file); + strbuf[si++] = (char) ii; + } while (ii != 0 || si % 2 != 0); + symbuf->n_strx = strbuf; + p = (char *) strchr (strbuf, ':'); + if (!p) break; + if ((p[1] == 'F' || p[1] == 'f') && cmplrid == VER_PRE_ULTRAC) + { + fread(&si, sizeof(si), 1, dbg_file); + nmask = bfd_get_16(abfd, (unsigned char *)&si); + for (ii=0; ii<nmask; ii++) + fread(&si, sizeof(si), 1, dbg_file); + } + break; + case N_SYM_LBRAC: + fread(&li, sizeof(li), 1, dbg_file); + symbuf->n_value = bfd_get_32(abfd, (unsigned char *)&li); + break; + case N_SYM_RBRAC: + fread(&li, sizeof(li), 1, dbg_file); + symbuf->n_value = bfd_get_32(abfd, (unsigned char *)&li); + break; + case N_SYM_SE: + break; + } + return 1; +} + +/* Given pointers to an a.out symbol table in core containing dbx + style data, setup partial_symtab's describing each source file for + which debugging information is available. + SYMFILE_NAME is the name of the file we are reading from + and SECTION_OFFSETS is the set of offsets for the various sections + of the file (a set of zeros if the mainline program). */ + +static void +read_os9k_psymtab (section_offsets, objfile, text_addr, text_size) + struct section_offsets *section_offsets; + struct objfile *objfile; + CORE_ADDR text_addr; + int text_size; +{ + register struct internal_symstruct *bufp = 0; /* =0 avoids gcc -Wall glitch*/ + register char *namestring; + int past_first_source_file = 0; + CORE_ADDR last_o_file_start = 0; +#if 0 + struct cleanup *back_to; +#endif + bfd *abfd; + FILE *fp; + + /* End of the text segment of the executable file. */ + static CORE_ADDR end_of_text_addr; + + /* Current partial symtab */ + static struct partial_symtab *pst = 0; + + /* List of current psymtab's include files */ + char **psymtab_include_list; + int includes_allocated; + int includes_used; + + /* Index within current psymtab dependency list */ + struct partial_symtab **dependency_list; + int dependencies_used, dependencies_allocated; + + includes_allocated = 30; + includes_used = 0; + psymtab_include_list = (char **) alloca (includes_allocated * + sizeof (char *)); + + dependencies_allocated = 30; + dependencies_used = 0; + dependency_list = + (struct partial_symtab **) alloca (dependencies_allocated * + sizeof (struct partial_symtab *)); + + last_source_file = NULL; + +#ifdef END_OF_TEXT_DEFAULT + end_of_text_addr = END_OF_TEXT_DEFAULT; +#else + end_of_text_addr = text_addr + section_offsets->offsets[SECT_OFF_TEXT] + + text_size; /* Relocate */ +#endif + + abfd = objfile->obfd; + fp = objfile->auxf2; + if (!fp) return; + + fread(&dbghdr.sync, sizeof(dbghdr.sync), 1, fp); + fread(&dbghdr.rev, sizeof(dbghdr.rev), 1, fp); + fread(&dbghdr.crc, sizeof(dbghdr.crc), 1, fp); + fread(&dbghdr.os, sizeof(dbghdr.os), 1, fp); + fread(&dbghdr.cpu, sizeof(dbghdr.cpu), 1, fp); + SWAP_DBGHDR(&dbghdr, abfd); + + symnum = 0; + while(1) + { + int ret; + long cursymoffset; + + /* Get the symbol for this run and pull out some info */ + QUIT; /* allow this to be interruptable */ + cursymoffset = ftell(objfile->auxf2); + ret = fill_sym(objfile->auxf2, abfd); + if (ret <= 0) break; + else symnum++; + bufp = symbuf; + + /* Special case to speed up readin. */ + if (bufp->n_type == (short)N_SYM_SLINE) continue; + +#define CUR_SYMBOL_VALUE bufp->n_value + /* partial-stab.h */ + + switch (bufp->n_type) + { + char *p; + + case N_SYM_CMPLR: + continue; + + case N_SYM_SE: + CUR_SYMBOL_VALUE += ANOFFSET(section_offsets, SECT_OFF_TEXT); + if (psymfile_depth == 1 && pst) + { + os9k_end_psymtab (pst, psymtab_include_list, includes_used, + symnum, CUR_SYMBOL_VALUE, + dependency_list, dependencies_used); + pst = (struct partial_symtab *) 0; + includes_used = 0; + dependencies_used = 0; + } + psymfile_depth--; + continue; + + case N_SYM_SYM: /* Typedef or automatic variable. */ + namestring = bufp->n_strx; + p = (char *) strchr (namestring, ':'); + if (!p) + continue; /* Not a debugging symbol. */ + + /* Main processing section for debugging symbols which + the initial read through the symbol tables needs to worry + about. If we reach this point, the symbol which we are + considering is definitely one we are interested in. + p must also contain the (valid) index into the namestring + which indicates the debugging type symbol. */ + + switch (p[1]) + { + case 'S' : + { + unsigned long valu; + enum language tmp_language; + char *str, *p; + int n; + + valu = CUR_SYMBOL_VALUE; + if (valu) + valu += ANOFFSET (section_offsets, SECT_OFF_TEXT); + past_first_source_file = 1; + + p = strchr(namestring, ':'); + if (p) n = p-namestring; + else n = strlen(namestring); + str = alloca(n+1); + strncpy(str, namestring, n); + str[n] = '\0'; + + if (psymfile_depth == 0) { + if (!pst) + pst = os9k_start_psymtab (objfile, section_offsets, + str, valu, + cursymoffset, + symnum-1, + objfile -> global_psymbols.next, + objfile -> static_psymbols.next); + } else { /* this is a include file */ + tmp_language = deduce_language_from_filename (str); + if (tmp_language != language_unknown + && (tmp_language != language_c + || psymtab_language != language_cplus)) + psymtab_language = tmp_language; + +/* + if (pst && STREQ (str, pst->filename)) + continue; + { + register int i; + for (i = 0; i < includes_used; i++) + if (STREQ (str, psymtab_include_list[i])) + { + i = -1; + break; + } + if (i == -1) + continue; + } +*/ + + psymtab_include_list[includes_used++] = str; + if (includes_used >= includes_allocated) + { + char **orig = psymtab_include_list; + + psymtab_include_list = (char **) + alloca ((includes_allocated *= 2) * sizeof (char *)); + memcpy ((PTR)psymtab_include_list, (PTR)orig, + includes_used * sizeof (char *)); + } + + } + psymfile_depth++; + continue; + } + + case 'v': + add_psymbol_to_list (namestring, p - namestring, + VAR_NAMESPACE, LOC_STATIC, + &objfile->static_psymbols, + 0, CUR_SYMBOL_VALUE, + psymtab_language, objfile); + continue; + case 'V': + add_psymbol_to_list (namestring, p - namestring, + VAR_NAMESPACE, LOC_STATIC, + &objfile->global_psymbols, + 0, CUR_SYMBOL_VALUE, + psymtab_language, objfile); + continue; + + case 'T': + if (p != namestring) /* a name is there, not just :T... */ + { + add_psymbol_to_list (namestring, p - namestring, + STRUCT_NAMESPACE, LOC_TYPEDEF, + &objfile->static_psymbols, + CUR_SYMBOL_VALUE, 0, + psymtab_language, objfile); + if (p[2] == 't') + { + /* Also a typedef with the same name. */ + add_psymbol_to_list (namestring, p - namestring, + VAR_NAMESPACE, LOC_TYPEDEF, + &objfile->static_psymbols, + CUR_SYMBOL_VALUE, 0, psymtab_language, + objfile); + p += 1; + } + /* The semantics of C++ state that "struct foo { ... }" + also defines a typedef for "foo". Unfortuantely, cfront + never makes the typedef when translating from C++ to C. + We make the typedef here so that "ptype foo" works as + expected for cfront translated code. */ + else if (psymtab_language == language_cplus) + { + /* Also a typedef with the same name. */ + add_psymbol_to_list (namestring, p - namestring, + VAR_NAMESPACE, LOC_TYPEDEF, + &objfile->static_psymbols, + CUR_SYMBOL_VALUE, 0, psymtab_language, + objfile); + } + } + goto check_enum; + case 't': + if (p != namestring) /* a name is there, not just :T... */ + { + add_psymbol_to_list (namestring, p - namestring, + VAR_NAMESPACE, LOC_TYPEDEF, + &objfile->static_psymbols, + CUR_SYMBOL_VALUE, 0, + psymtab_language, objfile); + } + check_enum: + /* If this is an enumerated type, we need to + add all the enum constants to the partial symbol + table. This does not cover enums without names, e.g. + "enum {a, b} c;" in C, but fortunately those are + rare. There is no way for GDB to find those from the + enum type without spending too much time on it. Thus + to solve this problem, the compiler needs to put out the + enum in a nameless type. GCC2 does this. */ + + /* We are looking for something of the form + <name> ":" ("t" | "T") [<number> "="] "e" <size> + {<constant> ":" <value> ","} ";". */ + + /* Skip over the colon and the 't' or 'T'. */ + p += 2; + /* This type may be given a number. Also, numbers can come + in pairs like (0,26). Skip over it. */ + while ((*p >= '0' && *p <= '9') + || *p == '(' || *p == ',' || *p == ')' + || *p == '=') + p++; + + if (*p++ == 'e') + { + /* We have found an enumerated type. skip size */ + while (*p >= '0' && *p <= '9') p++; + /* According to comments in read_enum_type + a comma could end it instead of a semicolon. + I don't know where that happens. + Accept either. */ + while (*p && *p != ';' && *p != ',') + { + char *q; + + /* Check for and handle cretinous dbx symbol name + continuation! + if (*p == '\\') + p = next_symbol_text (objfile); + */ + + /* Point to the character after the name + of the enum constant. */ + for (q = p; *q && *q != ':'; q++) + ; + /* Note that the value doesn't matter for + enum constants in psymtabs, just in symtabs. */ + add_psymbol_to_list (p, q - p, + VAR_NAMESPACE, LOC_CONST, + &objfile->static_psymbols, 0, + 0, psymtab_language, objfile); + /* Point past the name. */ + p = q; + /* Skip over the value. */ + while (*p && *p != ',') + p++; + /* Advance past the comma. */ + if (*p) + p++; + } + } + continue; + case 'c': + /* Constant, e.g. from "const" in Pascal. */ + add_psymbol_to_list (namestring, p - namestring, + VAR_NAMESPACE, LOC_CONST, + &objfile->static_psymbols, CUR_SYMBOL_VALUE, + 0, psymtab_language, objfile); + continue; + + case 'f': + CUR_SYMBOL_VALUE += ANOFFSET(section_offsets, SECT_OFF_TEXT); + if (pst && pst->textlow == 0) + pst->textlow = CUR_SYMBOL_VALUE; + + add_psymbol_to_list (namestring, p - namestring, + VAR_NAMESPACE, LOC_BLOCK, + &objfile->static_psymbols, CUR_SYMBOL_VALUE, + 0, psymtab_language, objfile); + continue; + + case 'F': + CUR_SYMBOL_VALUE += ANOFFSET(section_offsets, SECT_OFF_TEXT); + if (pst && pst->textlow == 0) + pst->textlow = CUR_SYMBOL_VALUE; + + add_psymbol_to_list (namestring, p - namestring, + VAR_NAMESPACE, LOC_BLOCK, + &objfile->global_psymbols, CUR_SYMBOL_VALUE, + 0, psymtab_language, objfile); + continue; + + case 'p': + case 'l': + case 's': + continue; + + case ':': + /* It is a C++ nested symbol. We don't need to record it + (I don't think); if we try to look up foo::bar::baz, + then symbols for the symtab containing foo should get + read in, I think. */ + /* Someone says sun cc puts out symbols like + /foo/baz/maclib::/usr/local/bin/maclib, + which would get here with a symbol type of ':'. */ + continue; + + default: + /* Unexpected symbol descriptor. The second and subsequent stabs + of a continued stab can show up here. The question is + whether they ever can mimic a normal stab--it would be + nice if not, since we certainly don't want to spend the + time searching to the end of every string looking for + a backslash. */ + + complain (&unknown_symchar_complaint, p[1]); + continue; + } + + case N_SYM_RBRAC: + CUR_SYMBOL_VALUE += ANOFFSET(section_offsets, SECT_OFF_TEXT); +#ifdef HANDLE_RBRAC + HANDLE_RBRAC(CUR_SYMBOL_VALUE); + continue; +#endif + case N_SYM_LBRAC: + continue; + + default: + /* If we haven't found it yet, ignore it. It's probably some + new type we don't know about yet. */ + complain (&unknown_symtype_complaint, + local_hex_string ((unsigned long) bufp->n_type)); + continue; + } + } + + DBX_SYMCOUNT (objfile) = symnum; + + /* If there's stuff to be cleaned up, clean it up. */ + if (DBX_SYMCOUNT (objfile) > 0 +/*FIXME, does this have a bug at start address 0? */ + && last_o_file_start + && objfile -> ei.entry_point < bufp->n_value + && objfile -> ei.entry_point >= last_o_file_start) + { + objfile -> ei.entry_file_lowpc = last_o_file_start; + objfile -> ei.entry_file_highpc = bufp->n_value; + } + + if (pst) + { + os9k_end_psymtab (pst, psymtab_include_list, includes_used, + symnum, end_of_text_addr, + dependency_list, dependencies_used); + } +/* + do_cleanups (back_to); +*/ +} + +/* Allocate and partially fill a partial symtab. It will be + completely filled at the end of the symbol list. + + SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR + is the address relative to which its symbols are (incremental) or 0 + (normal). */ + + +static struct partial_symtab * +os9k_start_psymtab (objfile, section_offsets, + filename, textlow, ldsymoff,ldsymcnt, global_syms, static_syms) + struct objfile *objfile; + struct section_offsets *section_offsets; + char *filename; + CORE_ADDR textlow; + int ldsymoff; + int ldsymcnt; + struct partial_symbol **global_syms; + struct partial_symbol **static_syms; +{ + struct partial_symtab *result = + start_psymtab_common(objfile, section_offsets, + filename, textlow, global_syms, static_syms); + + result->read_symtab_private = (char *) + obstack_alloc (&objfile -> psymbol_obstack, sizeof (struct symloc)); + + LDSYMOFF(result) = ldsymoff; + LDSYMCNT(result) = ldsymcnt; + result->read_symtab = os9k_psymtab_to_symtab; + + /* Deduce the source language from the filename for this psymtab. */ + psymtab_language = deduce_language_from_filename (filename); + return result; +} + +/* Close off the current usage of PST. + Returns PST or NULL if the partial symtab was empty and thrown away. + FIXME: List variables and peculiarities of same. */ + +static struct partial_symtab * +os9k_end_psymtab (pst, include_list, num_includes, capping_symbol_cnt, + capping_text, dependency_list, number_dependencies) + struct partial_symtab *pst; + char **include_list; + int num_includes; + int capping_symbol_cnt; + CORE_ADDR capping_text; + struct partial_symtab **dependency_list; + int number_dependencies; + /* struct partial_symbol *capping_global, *capping_static; */ +{ + int i; + struct partial_symtab *p1; + struct objfile *objfile = pst -> objfile; + + if (capping_symbol_cnt != -1) + LDSYMCNT(pst) = capping_symbol_cnt - LDSYMCNT(pst); + + /* Under Solaris, the N_SO symbols always have a value of 0, + instead of the usual address of the .o file. Therefore, + we have to do some tricks to fill in texthigh and textlow. + The first trick is in partial-stab.h: if we see a static + or global function, and the textlow for the current pst + is still 0, then we use that function's address for + the textlow of the pst. + + Now, to fill in texthigh, we remember the last function seen + in the .o file (also in partial-stab.h). Also, there's a hack in + bfd/elf.c and gdb/elfread.c to pass the ELF st_size field + to here via the misc_info field. Therefore, we can fill in + a reliable texthigh by taking the address plus size of the + last function in the file. + + Unfortunately, that does not cover the case where the last function + in the file is static. See the paragraph below for more comments + on this situation. + + Finally, if we have a valid textlow for the current file, we run + down the partial_symtab_list filling in previous texthighs that + are still unknown. */ + + if (pst->texthigh == 0 && last_function_name) { + char *p; + int n; + struct minimal_symbol *minsym; + + p = strchr (last_function_name, ':'); + if (p == NULL) + p = last_function_name; + n = p - last_function_name; + p = alloca (n + 1); + strncpy (p, last_function_name, n); + p[n] = 0; + + minsym = lookup_minimal_symbol (p, NULL, objfile); + + if (minsym) { + pst->texthigh = SYMBOL_VALUE_ADDRESS(minsym)+(long)MSYMBOL_INFO(minsym); + } else { + /* This file ends with a static function, and it's + difficult to imagine how hard it would be to track down + the elf symbol. Luckily, most of the time no one will notice, + since the next file will likely be compiled with -g, so + the code below will copy the first fuction's start address + back to our texthigh variable. (Also, if this file is the + last one in a dynamically linked program, texthigh already + has the right value.) If the next file isn't compiled + with -g, then the last function in this file winds up owning + all of the text space up to the next -g file, or the end (minus + shared libraries). This only matters for single stepping, + and even then it will still work, except that it will single + step through all of the covered functions, instead of setting + breakpoints around them as it usualy does. This makes it + pretty slow, but at least it doesn't fail. + + We can fix this with a fairly big change to bfd, but we need + to coordinate better with Cygnus if we want to do that. FIXME. */ + } + last_function_name = NULL; + } + + /* this test will be true if the last .o file is only data */ + if (pst->textlow == 0) + pst->textlow = pst->texthigh; + + /* If we know our own starting text address, then walk through all other + psymtabs for this objfile, and if any didn't know their ending text + address, set it to our starting address. Take care to not set our + own ending address to our starting address, nor to set addresses on + `dependency' files that have both textlow and texthigh zero. */ + if (pst->textlow) { + ALL_OBJFILE_PSYMTABS (objfile, p1) { + if (p1->texthigh == 0 && p1->textlow != 0 && p1 != pst) { + p1->texthigh = pst->textlow; + /* if this file has only data, then make textlow match texthigh */ + if (p1->textlow == 0) + p1->textlow = p1->texthigh; + } + } + } + + /* End of kludge for patching Solaris textlow and texthigh. */ + + pst->n_global_syms = + objfile->global_psymbols.next - (objfile->global_psymbols.list + pst->globals_offset); + pst->n_static_syms = + objfile->static_psymbols.next - (objfile->static_psymbols.list + pst->statics_offset); + + pst->number_of_dependencies = number_dependencies; + if (number_dependencies) + { + pst->dependencies = (struct partial_symtab **) + obstack_alloc (&objfile->psymbol_obstack, + number_dependencies * sizeof (struct partial_symtab *)); + memcpy (pst->dependencies, dependency_list, + number_dependencies * sizeof (struct partial_symtab *)); + } + else + pst->dependencies = 0; + + for (i = 0; i < num_includes; i++) + { + struct partial_symtab *subpst = + allocate_psymtab (include_list[i], objfile); + + subpst->section_offsets = pst->section_offsets; + subpst->read_symtab_private = + (char *) obstack_alloc (&objfile->psymbol_obstack, + sizeof (struct symloc)); + LDSYMOFF(subpst) = + LDSYMCNT(subpst) = + subpst->textlow = + subpst->texthigh = 0; + + /* We could save slight bits of space by only making one of these, + shared by the entire set of include files. FIXME-someday. */ + subpst->dependencies = (struct partial_symtab **) + obstack_alloc (&objfile->psymbol_obstack, + sizeof (struct partial_symtab *)); + subpst->dependencies[0] = pst; + subpst->number_of_dependencies = 1; + + subpst->globals_offset = + subpst->n_global_syms = + subpst->statics_offset = + subpst->n_static_syms = 0; + + subpst->readin = 0; + subpst->symtab = 0; + subpst->read_symtab = pst->read_symtab; + } + + sort_pst_symbols (pst); + + /* If there is already a psymtab or symtab for a file of this name, + remove it. + (If there is a symtab, more drastic things also happen.) + This happens in VxWorks. */ + free_named_symtabs (pst->filename); + + if (num_includes == 0 + && number_dependencies == 0 + && pst->n_global_syms == 0 + && pst->n_static_syms == 0) { + /* Throw away this psymtab, it's empty. We can't deallocate it, since + it is on the obstack, but we can forget to chain it on the list. */ + /* Indicate that psymtab was thrown away. */ + + discard_psymtab (pst); + + pst = (struct partial_symtab *)NULL; + } + return pst; +} + +static void +os9k_psymtab_to_symtab_1 (pst) + struct partial_symtab *pst; +{ + struct cleanup *old_chain; + int i; + + if (!pst) + return; + + if (pst->readin) + { + fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in. Shouldn't happen.\n", + pst->filename); + return; + } + + /* Read in all partial symtabs on which this one is dependent */ + for (i = 0; i < pst->number_of_dependencies; i++) + if (!pst->dependencies[i]->readin) + { + /* Inform about additional files that need to be read in. */ + if (info_verbose) + { + fputs_filtered (" ", gdb_stdout); + wrap_here (""); + fputs_filtered ("and ", gdb_stdout); + wrap_here (""); + printf_filtered ("%s...", pst->dependencies[i]->filename); + wrap_here (""); /* Flush output */ + gdb_flush (gdb_stdout); + } + os9k_psymtab_to_symtab_1 (pst->dependencies[i]); + } + + if (LDSYMCNT(pst)) /* Otherwise it's a dummy */ + { + /* Init stuff necessary for reading in symbols */ + stabsread_init (); + buildsym_init (); + old_chain = make_cleanup ((make_cleanup_func) really_free_pendings, 0); + + /* Read in this file's symbols */ + os9k_read_ofile_symtab (pst); + sort_symtab_syms (pst->symtab); + do_cleanups (old_chain); + } + + pst->readin = 1; +} + +/* Read in all of the symbols for a given psymtab for real. + Be verbose about it if the user wants that. */ + +static void +os9k_psymtab_to_symtab (pst) + struct partial_symtab *pst; +{ + bfd *sym_bfd; + + if (!pst) + return; + + if (pst->readin) + { + fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in. Shouldn't happen.\n", + pst->filename); + return; + } + + if (LDSYMCNT(pst) || pst->number_of_dependencies) + { + /* Print the message now, before reading the string table, + to avoid disconcerting pauses. */ + if (info_verbose) + { + printf_filtered ("Reading in symbols for %s...", pst->filename); + gdb_flush (gdb_stdout); + } + + sym_bfd = pst->objfile->obfd; + os9k_psymtab_to_symtab_1 (pst); + + /* Match with global symbols. This only needs to be done once, + after all of the symtabs and dependencies have been read in. */ + scan_file_globals (pst->objfile); + + /* Finish up the debug error message. */ + if (info_verbose) + printf_filtered ("done.\n"); + } +} + +/* Read in a defined section of a specific object file's symbols. */ +static void +os9k_read_ofile_symtab (pst) + struct partial_symtab *pst; +{ + register struct internal_symstruct *bufp; + unsigned char type; + unsigned max_symnum; + register bfd *abfd; + struct objfile *objfile; + int sym_offset; /* Offset to start of symbols to read */ + CORE_ADDR text_offset; /* Start of text segment for symbols */ + int text_size; /* Size of text segment for symbols */ + struct section_offsets *section_offsets; + FILE *dbg_file; + + objfile = pst->objfile; + sym_offset = LDSYMOFF(pst); + max_symnum = LDSYMCNT(pst); + text_offset = pst->textlow; + text_size = pst->texthigh - pst->textlow; + section_offsets = pst->section_offsets; + + current_objfile = objfile; + subfile_stack = NULL; + last_source_file = NULL; + + abfd = objfile->obfd; + dbg_file = objfile->auxf2; + +#if 0 + /* It is necessary to actually read one symbol *before* the start + of this symtab's symbols, because the GCC_COMPILED_FLAG_SYMBOL + occurs before the N_SO symbol. + Detecting this in read_dbx_symtab + would slow down initial readin, so we look for it here instead. */ + if (!processing_acc_compilation && sym_offset >= (int)symbol_size) + { + fseek (objefile->auxf2, sym_offset, SEEK_CUR); + fill_sym(objfile->auxf2, abfd); + bufp = symbuf; + + processing_gcc_compilation = 0; + if (bufp->n_type == N_TEXT) + { + if (STREQ (namestring, GCC_COMPILED_FLAG_SYMBOL)) + processing_gcc_compilation = 1; + else if (STREQ (namestring, GCC2_COMPILED_FLAG_SYMBOL)) + processing_gcc_compilation = 2; + } + + /* Try to select a C++ demangling based on the compilation unit + producer. */ + + if (processing_gcc_compilation) + { + if (AUTO_DEMANGLING) + { + set_demangling_style (GNU_DEMANGLING_STYLE_STRING); + } + } + } + else + { + /* The N_SO starting this symtab is the first symbol, so we + better not check the symbol before it. I'm not this can + happen, but it doesn't hurt to check for it. */ + bfd_seek (symfile_bfd, sym_offset, SEEK_CUR); + processing_gcc_compilation = 0; + } +#endif /* 0 */ + + fseek(dbg_file, (long)sym_offset, 0); +/* + if (bufp->n_type != (unsigned char)N_SYM_SYM) + error("First symbol in segment of executable not a source symbol"); +*/ + + for (symnum = 0; symnum < max_symnum; symnum++) + { + QUIT; /* Allow this to be interruptable */ + fill_sym(dbg_file, abfd); + bufp = symbuf; + type = bufp->n_type; + + os9k_process_one_symbol ((int)type, (int)bufp->n_desc, + (CORE_ADDR)bufp->n_value, bufp->n_strx, section_offsets, objfile); + + /* We skip checking for a new .o or -l file; that should never + happen in this routine. */ +#if 0 + else if (type == N_TEXT) + { + /* I don't think this code will ever be executed, because + the GCC_COMPILED_FLAG_SYMBOL usually is right before + the N_SO symbol which starts this source file. + However, there is no reason not to accept + the GCC_COMPILED_FLAG_SYMBOL anywhere. */ + + if (STREQ (namestring, GCC_COMPILED_FLAG_SYMBOL)) + processing_gcc_compilation = 1; + else if (STREQ (namestring, GCC2_COMPILED_FLAG_SYMBOL)) + processing_gcc_compilation = 2; + + if (AUTO_DEMANGLING) + { + set_demangling_style (GNU_DEMANGLING_STYLE_STRING); + } + } + else if (type & N_EXT || type == (unsigned char)N_TEXT + || type == (unsigned char)N_NBTEXT + ) { + /* Global symbol: see if we came across a dbx defintion for + a corresponding symbol. If so, store the value. Remove + syms from the chain when their values are stored, but + search the whole chain, as there may be several syms from + different files with the same name. */ + /* This is probably not true. Since the files will be read + in one at a time, each reference to a global symbol will + be satisfied in each file as it appears. So we skip this + section. */ + ; + } +#endif /* 0 */ + } + + current_objfile = NULL; + + /* In a Solaris elf file, this variable, which comes from the + value of the N_SO symbol, will still be 0. Luckily, text_offset, + which comes from pst->textlow is correct. */ + if (last_source_start_addr == 0) + last_source_start_addr = text_offset; + pst->symtab = end_symtab (text_offset + text_size, objfile, SECT_OFF_TEXT); + end_stabs (); +} + + +/* This handles a single symbol from the symbol-file, building symbols + into a GDB symtab. It takes these arguments and an implicit argument. + + TYPE is the type field of the ".stab" symbol entry. + DESC is the desc field of the ".stab" entry. + VALU is the value field of the ".stab" entry. + NAME is the symbol name, in our address space. + SECTION_OFFSETS is a set of amounts by which the sections of this object + file were relocated when it was loaded into memory. + All symbols that refer + to memory locations need to be offset by these amounts. + OBJFILE is the object file from which we are reading symbols. + It is used in end_symtab. */ + +static void +os9k_process_one_symbol (type, desc, valu, name, section_offsets, objfile) + int type, desc; + CORE_ADDR valu; + char *name; + struct section_offsets *section_offsets; + struct objfile *objfile; +{ + register struct context_stack *new; + /* The stab type used for the definition of the last function. + N_STSYM or N_GSYM for SunOS4 acc; N_FUN for other compilers. */ + static int function_stab_type = 0; + +#if 0 + /* Something is wrong if we see real data before + seeing a source file name. */ + if (last_source_file == NULL && type != (unsigned char)N_SO) + { + /* Ignore any symbols which appear before an N_SO symbol. + Currently no one puts symbols there, but we should deal + gracefully with the case. A complain()t might be in order, + but this should not be an error (). */ + return; + } +#endif /* 0 */ + + switch (type) + { + case N_SYM_LBRAC: + /* On most machines, the block addresses are relative to the + N_SO, the linker did not relocate them (sigh). */ + valu += ANOFFSET (section_offsets, SECT_OFF_TEXT); + new = push_context (desc, valu); + break; + + case N_SYM_RBRAC: + valu += ANOFFSET (section_offsets, SECT_OFF_TEXT); + new = pop_context(); + +#if !defined (OS9K_VARIABLES_INSIDE_BLOCK) +#define OS9K_VARIABLES_INSIDE_BLOCK(desc, gcc_p) 1 +#endif + + if (!OS9K_VARIABLES_INSIDE_BLOCK(desc, processing_gcc_compilation)) + local_symbols = new->locals; + + if (context_stack_depth > 1) + { + /* This is not the outermost LBRAC...RBRAC pair in the function, + its local symbols preceded it, and are the ones just recovered + from the context stack. Define the block for them (but don't + bother if the block contains no symbols. Should we complain + on blocks without symbols? I can't think of any useful purpose + for them). */ + if (local_symbols != NULL) + { + /* Muzzle a compiler bug that makes end < start. (which + compilers? Is this ever harmful?). */ + if (new->start_addr > valu) + { + complain (&lbrac_rbrac_complaint); + new->start_addr = valu; + } + /* Make a block for the local symbols within. */ + finish_block (0, &local_symbols, new->old_blocks, + new->start_addr, valu, objfile); + } + } + else + { + if (context_stack_depth == 0) + { + within_function = 0; + /* Make a block for the local symbols within. */ + finish_block (new->name, &local_symbols, new->old_blocks, + new->start_addr, valu, objfile); + } + else + { + /* attach local_symbols to the end of new->locals */ + if (!new->locals) new->locals = local_symbols; + else { + struct pending *p; + + p = new->locals; + while (p->next) p = p->next; + p->next = local_symbols; + } + } + } + + if (OS9K_VARIABLES_INSIDE_BLOCK(desc, processing_gcc_compilation)) + /* Now pop locals of block just finished. */ + local_symbols = new->locals; + break; + + + case N_SYM_SLINE: + /* This type of "symbol" really just records + one line-number -- core-address correspondence. + Enter it in the line list for this symbol table. */ + /* Relocate for dynamic loading and for ELF acc fn-relative syms. */ + valu += ANOFFSET (section_offsets, SECT_OFF_TEXT); + /* FIXME: loses if sizeof (char *) > sizeof (int) */ + record_line (current_subfile, (int)name, valu); + break; + + /* The following symbol types need to have the appropriate offset added + to their value; then we process symbol definitions in the name. */ + case N_SYM_SYM: + + if (name) + { + char deftype; + char *dirn, *n; + char *p = strchr (name, ':'); + if (p == NULL) + deftype = '\0'; + else + deftype = p[1]; + + + switch (deftype) + { + case 'S': + valu += ANOFFSET (section_offsets, SECT_OFF_TEXT); + n = strrchr(name, '/'); + if (n != NULL) { + *n = '\0'; + n++; + dirn = name; + } else { + n = name; + dirn = NULL; + } + *p = '\0'; + if (symfile_depth++ == 0) { + if (last_source_file) { + end_symtab (valu, objfile, SECT_OFF_TEXT); + end_stabs (); + } + start_stabs (); + os9k_stabs = 1; + start_symtab (n, dirn, valu); + record_debugformat ("OS9"); + } else { + push_subfile(); + start_subfile (n, dirn!=NULL ? dirn : current_subfile->dirname); + } + break; + + case 'f': + case 'F': + valu += ANOFFSET (section_offsets, SECT_OFF_TEXT); + function_stab_type = type; + + within_function = 1; + new = push_context (0, valu); + new->name = define_symbol (valu, name, desc, type, objfile); + break; + + case 'V': + case 'v': + valu += ANOFFSET (section_offsets, SECT_OFF_DATA); + define_symbol (valu, name, desc, type, objfile); + break; + + default: + define_symbol (valu, name, desc, type, objfile); + break; + } + } + break; + + case N_SYM_SE: + if (--symfile_depth != 0) + start_subfile(pop_subfile(), current_subfile->dirname); + break; + + default: + complain (&unknown_symtype_complaint, + local_hex_string((unsigned long) type)); + /* FALLTHROUGH */ + break; + + case N_SYM_CMPLR: + break; + } + previous_stab_code = type; +} + +static struct sym_fns os9k_sym_fns = +{ + bfd_target_os9k_flavour, + os9k_new_init, /* sym_new_init: init anything gbl to entire symtab */ + os9k_symfile_init, /* sym_init: read initial info, setup for sym_read() */ + os9k_symfile_read, /* sym_read: read a symbol file into symtab */ + os9k_symfile_finish, /* sym_finish: finished with file, cleanup */ + default_symfile_offsets, + /* sym_offsets: parse user's offsets to internal form*/ + NULL /* next: pointer to next struct sym_fns */ +}; + +void +_initialize_os9kread () +{ + add_symtab_fns(&os9k_sym_fns); +} |