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- /* ELF object file format
- Copyright (C) 1992, 1993 Free Software Foundation, Inc.
-
- This file is part of GAS, the GNU Assembler.
-
- GAS 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,
- or (at your option) any later version.
-
- GAS 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 GAS; see the file COPYING. If not, write
- to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* HP PA-RISC support was contributed by the Center for Software Science
- at the University of Utah. */
-
- #include "as.h"
- #include "aout/stab_gnu.h"
- #include "obstack.h"
-
- static void obj_elf_stab PARAMS ((int what));
- static void obj_elf_line PARAMS ((void));
- static void obj_elf_desc PARAMS ((void));
- static void obj_elf_version PARAMS ((void));
- static void obj_elf_section PARAMS ((int));
- static void obj_elf_size PARAMS ((void));
- static void obj_elf_type PARAMS ((void));
- static void obj_elf_ident PARAMS ((void));
-
- const pseudo_typeS obj_pseudo_table[] = {
- { "ident", obj_elf_ident, 0 },
- { "section", obj_elf_section, 0 },
- { "size", obj_elf_size, 0 },
- { "type", obj_elf_type, 0 },
- { "version", obj_elf_version, 0 },
-
- /* These are used for stabs-in-elf configurations. */
- { "desc", obj_elf_desc, 0 },
- { "line", obj_elf_line, 0 },
- { "stabd", obj_elf_stab, 'd' },
- { "stabn", obj_elf_stab, 'n' },
- { "stabs", obj_elf_stab, 's' },
- /* This is used on Solaris 2.x on SPARC, but not supported yet. */
- { "xstabs", s_ignore, 0 },
-
- { NULL} /* end sentinel */
- };
-
- static void
- obj_elf_section (xxx)
- int xxx;
- {
- char *string;
- asection *sec;
-
- /* Initialize this with inclusive-or of all flags that can be cleared
- by attributes, but not set by them. Also include flags that won't
- get set properly in the assembler, but which the user/compiler
- shouldn't be expected to set. */
- flagword flags = SEC_READONLY | SEC_ALLOC | SEC_RELOC;
- /* Initialize this with the default flags to be used if none are
- specified. */
- flagword default_flags = SEC_ALLOC | SEC_RELOC;
-
- string = demand_copy_C_string (&xxx);
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
- flags = default_flags;
- while (*input_line_pointer == ',')
- {
- flagword bit;
- int len, inv;
- char *p, oldp;
-
- input_line_pointer++;
- if (*input_line_pointer != '#')
- {
- as_bad ("unrecognized syntax in .section command");
- ignore_rest_of_line ();
- break;
- }
- input_line_pointer++;
-
- #define CHECK(X,BIT,NEG) \
- if (!strncmp(X,input_line_pointer,len = sizeof(X) - 1)) { \
- bit = BIT; inv = NEG; goto match; }
-
- CHECK ("write", SEC_READONLY, 1);
- CHECK ("alloc", SEC_ALLOC, 0);
- #undef CHECK
-
- p = input_line_pointer;
- while (!is_end_of_line[*p] && *p != 0 && *p != ',')
- p++;
- *p = 0;
- oldp = *p;
- as_bad ("unrecognized section attribute `%s' ignored",
- input_line_pointer);
- *p = oldp;
- continue;
-
- match:
- if (inv)
- flags &= ~bit;
- else
- flags |= bit;
- input_line_pointer += len;
- }
- demand_empty_rest_of_line ();
-
- sec = bfd_get_section_by_name (stdoutput, string);
- if (sec == 0)
- {
- sec = bfd_make_section_old_way (stdoutput, string);
- bfd_set_section_flags (stdoutput, sec,
- /* @@ What should the flags be?? */
- flags);
- sec->output_section = sec;
- }
- subseg_change (sec, 0);
- }
-
- #if 0
- /* pa-spaces.c -- Space/subspace support for the HP PA-RISC version of GAS */
-
- /* for space, subspace, and symbol maintenance on HP 9000 Series 800 */
-
- space_dict_chainS *space_dict_root;
- space_dict_chainS *space_dict_last;
-
- space_dict_chainS *current_space;
- subspace_dict_chainS *current_subspace;
- #endif
-
- symbolS *start_symbol_root;
- symbolS *start_symbol_last;
-
- #if 0 /* I really don't think this belongs in this file. */
- void pa_spaces_begin()
- {
- space_dict_chainS *space;
- int i;
- subsegT now_subseg = now_subseg;
-
- space_dict_root = NULL;
- space_dict_last = NULL;
-
- start_symbol_root = NULL;
- start_symbol_last = NULL;
-
- /* create default space and subspace dictionaries */
-
- i = 0;
- while ( pa_def_spaces[i].name ) {
- if ( pa_def_spaces[i].alias )
- pa_def_spaces[i].segment = subseg_new(pa_def_spaces[i].alias,0);
- else
- pa_def_spaces[i].segment = bfd_make_section_old_way(stdoutput,pa_def_spaces[i].name);
-
- create_new_space(pa_def_spaces[i].name,pa_def_spaces[i].spnum,
- pa_def_spaces[i].loadable,pa_def_spaces[i].defined,
- pa_def_spaces[i].private,pa_def_spaces[i].sort,0,
- pa_def_spaces[i].segment);
- i++;
- }
-
- i = 0;
- while ( pa_def_subspaces[i].name ) {
- space = pa_segment_to_space(pa_def_spaces[pa_def_subspaces[i].def_space_index].segment);
- if ( space ) {
- create_new_subspace(space,
- pa_def_subspaces[i].name,pa_def_subspaces[i].defined,
- pa_def_subspaces[i].loadable,
- pa_def_subspaces[i].code_only,pa_def_subspaces[i].common,
- pa_def_subspaces[i].dup_common,pa_def_subspaces[i].zero,
- pa_def_subspaces[i].sort,pa_def_subspaces[i].access,
- pa_def_subspaces[i].space_index,
- pa_def_subspaces[i].alignment,
- pa_def_subspaces[i].quadrant,
- pa_def_spaces[pa_def_subspaces[i].def_space_index].segment);
- subseg_new(pa_def_subspaces[i].name,pa_def_subspaces[i].subsegment);
- }
- else
- as_fatal("Internal error: space missing for subspace \"%s\"\n",
- pa_def_subspaces[i].name);
- i++;
- }
- }
-
- space_dict_chainS *create_new_space(name,spnum,loadable,defined,private,sort,defined_in_file,seg)
- char *name;
- int spnum;
- char loadable;
- char defined;
- char private;
- char sort;
- char defined_in_file;
- asection * seg;
-
- {
- Elf_Internal_Shdr *new_space;
- space_dict_chainS *chain_entry;
-
- new_space = (Elf_Internal_Shdr *)xmalloc(sizeof(Elf_Internal_Shdr));
- if ( !new_space )
- as_fatal("Out of memory: could not allocate new Elf_Internal_Shdr: %s\n",name);
-
- /*
- new_space->space_number = spnum;
- new_space->is_loadable = loadable & 1;
- new_space->is_defined = defined & 1;
- new_space->is_private = private & 1;
- new_space->sort_key = sort & 0xff;
-
- new_space->loader_fix_index = ~0;
- new_space->loader_fix_quantity = 0;
- new_space->init_pointer_index = ~0;
- new_space->init_pointer_quantity = 0;
- new_space->subspace_quantity = 0;
- */
-
- chain_entry = (space_dict_chainS *)xmalloc(sizeof(space_dict_chainS));
- if ( !chain_entry )
- as_fatal("Out of memory: could not allocate new space chain entry: %s\n",name);
-
- SPACE_NAME(chain_entry) = (char *)xmalloc(strlen(name)+1);
- strcpy(SPACE_NAME(chain_entry),name);
-
- chain_entry->sd_entry = new_space;
- chain_entry->sd_defined = defined_in_file;
- chain_entry->sd_seg = seg;
- chain_entry->sd_last_subseg = -1;
- chain_entry->sd_next = NULL;
-
- SPACE_SPNUM(chain_entry) = spnum;
- SPACE_LOADABLE(chain_entry) = loadable & 1;
- SPACE_DEFINED(chain_entry) = defined & 1;
- SPACE_PRIVATE(chain_entry) = private & 1;
- SPACE_SORT(chain_entry) = sort & 0xff;
-
- /* find spot for the new space based on its sort key */
-
- if ( !space_dict_last )
- space_dict_last = chain_entry;
-
- if ( space_dict_root == NULL ) /* if root is null, it is very easy */
- space_dict_root = chain_entry;
- else
- {
- space_dict_chainS *sdcP;
- space_dict_chainS *last_sdcP;
-
- sdcP = space_dict_root;
- last_sdcP = NULL;
-
- while ( sdcP ) {
- if ( SPACE_SORT(sdcP) < SPACE_SORT(chain_entry) ) {
- last_sdcP = sdcP;
- sdcP = sdcP->sd_next;
- }
- else if ( SPACE_SORT(sdcP) == SPACE_SORT(chain_entry) ) {
- last_sdcP = sdcP;
- sdcP = sdcP->sd_next;
- }
- else if ( SPACE_SORT(sdcP) > SPACE_SORT(chain_entry) ) {
- break;
- }
- }
-
- if ( last_sdcP ) {
- chain_entry->sd_next = sdcP;
- last_sdcP->sd_next = chain_entry;
- }
- else {
- space_dict_root = chain_entry;
- chain_entry->sd_next = sdcP;
- }
-
- if ( chain_entry->sd_next == NULL )
- space_dict_last = chain_entry;
- }
-
- return chain_entry;
- }
-
- subspace_dict_chainS
- *create_new_subspace(space,name,defined,loadable,code_only,common,dup_common,
- is_zero,sort,access,space_index,alignment,quadrant,seg)
- space_dict_chainS *space;
- char *name;
- char defined,loadable,code_only,common,dup_common,is_zero;
- char sort;
- int access;
- int space_index;
- int alignment;
- int quadrant;
- asection * seg;
- {
- Elf_Internal_Shdr * new_subspace;
- subspace_dict_chainS * chain_entry;
- symbolS * start_symbol;
-
- new_subspace = (Elf_Internal_Shdr *)xmalloc(sizeof(Elf_Internal_Shdr));
- if ( !new_subspace )
- as_fatal("Out of memory: could not allocate new Elf_Internal_Shdr: %s\n",
- name);
-
- /*
- new_subspace->space_index = space_index;
- new_subspace->fixup_request_index = ~0;
- */
-
- chain_entry = (subspace_dict_chainS *)xmalloc(sizeof(subspace_dict_chainS));
- if ( !chain_entry )
- as_fatal("Out of memory: could not allocate new subspace chain entry: %s\n",name);
-
- chain_entry->ssd_entry = new_subspace;
- SUBSPACE_NAME(chain_entry) = (char *)xmalloc(strlen(name)+1);
- strcpy(SUBSPACE_NAME(chain_entry),name);
-
- SUBSPACE_ACCESS(chain_entry) = access & 0x7f;
- SUBSPACE_LOADABLE(chain_entry) = loadable & 1;
- SUBSPACE_COMMON(chain_entry) = common & 1;
- SUBSPACE_DUP_COMM(chain_entry) = dup_common & 1;
- SUBSPACE_SORT(chain_entry) = sort & 0xff;
- SET_SUBSPACE_CODE_ONLY(chain_entry,code_only & 1);
- SUBSPACE_ALIGN(chain_entry) = alignment & 0xffff;
- SUBSPACE_QUADRANT(chain_entry) = quadrant & 0x3;
- SUBSPACE_SUBSPACE_START(chain_entry) = pa_subspace_start(space,quadrant);
-
- chain_entry->ssd_defined = defined;
- chain_entry->ssd_space_number = space_index;
- chain_entry->ssd_subseg = pa_next_subseg(space);
- chain_entry->ssd_seg = seg;
- SUBSPACE_ZERO(chain_entry) = is_zero;
- chain_entry->ssd_last_align = 1;
- chain_entry->ssd_next = NULL;
-
- /* find spot for the new subspace based on its sort key */
-
- if ( space->sd_subspaces == NULL ) /* if root is null, it is very easy */
- space->sd_subspaces = chain_entry;
- else
- {
- subspace_dict_chainS *ssdcP;
- subspace_dict_chainS *last_ssdcP;
-
- ssdcP = space->sd_subspaces;
- last_ssdcP = NULL;
-
- while ( ssdcP ) {
- if ( SUBSPACE_SORT(ssdcP) < SUBSPACE_SORT(chain_entry) ) {
- last_ssdcP = ssdcP;
- ssdcP = ssdcP->ssd_next;
- }
- else if ( SUBSPACE_SORT(ssdcP) == SUBSPACE_SORT(chain_entry) ) {
- last_ssdcP = ssdcP;
- ssdcP = ssdcP->ssd_next;
- }
- else if ( SUBSPACE_SORT(ssdcP) > SUBSPACE_SORT(chain_entry) ) {
- break;
- }
- }
-
- if ( last_ssdcP ) {
- chain_entry->ssd_next = ssdcP;
- last_ssdcP->ssd_next = chain_entry;
- }
- else {
- space->sd_subspaces = chain_entry;
- chain_entry->ssd_next = ssdcP;
- }
- }
-
- start_symbol = pa_set_start_symbol(seg,space->sd_last_subseg);
- chain_entry->ssd_start_sym = start_symbol;
- return chain_entry;
-
- }
-
- subspace_dict_chainS
- *update_subspace(name,defined,loadable,code_only,common,dup_common,sort,zero,
- access,space_index,alignment,quadrant,subseg)
- char *name;
- char defined,loadable,code_only,common,dup_common,zero;
- char sort;
- int access;
- int space_index;
- int alignment;
- int quadrant;
- subsegT subseg;
- {
- subspace_dict_chainS *chain_entry;
- subspace_dict_chainS *is_defined_subspace();
-
- if ( (chain_entry = is_defined_subspace(name,subseg)) ) {
-
- SUBSPACE_ACCESS(chain_entry) = access & 0x7f;
- SUBSPACE_LOADABLE(chain_entry) = loadable & 1;
- SUBSPACE_COMMON(chain_entry) = common & 1;
- SUBSPACE_DUP_COMM(chain_entry) = dup_common & 1;
- SET_SUBSPACE_CODE_ONLY(chain_entry,code_only & 1);
- SUBSPACE_SORT(chain_entry) = sort & 0xff;
- /* chain_entry->ssd_entry->space_index = space_index; */
- SUBSPACE_ALIGN(chain_entry) = alignment & 0xffff;
- SUBSPACE_QUADRANT(chain_entry) = quadrant & 0x3;
-
- chain_entry->ssd_defined = defined;
- chain_entry->ssd_space_number = space_index;
- SUBSPACE_ZERO(chain_entry) = zero;
- }
- else
- chain_entry = NULL;
-
- return chain_entry;
-
- }
-
- space_dict_chainS *is_defined_space(name)
- char *name;
- {
- space_dict_chainS *spaceCh;
-
- for (spaceCh = space_dict_root;spaceCh;spaceCh=spaceCh->sd_next ) {
- if ( strcmp(SPACE_NAME(spaceCh),name) == 0 ) {
- return spaceCh;
- }
- }
-
- return NULL;
- }
-
- space_dict_chainS *pa_segment_to_space(seg)
- asection * seg;
- {
- space_dict_chainS *spaceCh;
-
- for (spaceCh = space_dict_root;spaceCh;spaceCh=spaceCh->sd_next ) {
- if ( spaceCh->sd_seg == seg ) {
- return spaceCh;
- }
- }
-
- return NULL;
- }
-
- subspace_dict_chainS *is_defined_subspace(name,subseg)
- char *name;
- subsegT subseg;
- {
- space_dict_chainS *spaceCh;
- subspace_dict_chainS *subspCh;
-
- for ( spaceCh = space_dict_root; spaceCh; spaceCh = spaceCh->sd_next ) {
- for ( subspCh = spaceCh->sd_subspaces; subspCh; subspCh=subspCh->ssd_next ) {
- /*
- if ( strcmp(SUBSPACE_NAME(subspCh),name) == 0 &&
- subspCh->ssd_subseg == subseg ) {
- */
- if ( strcmp(SUBSPACE_NAME(subspCh),name) == 0 ) {
- return subspCh;
- }
- }
- }
- return NULL;
- }
-
- subspace_dict_chainS *pa_subsegment_to_subspace(seg,subseg)
- asection * seg;
- subsegT subseg;
- {
- space_dict_chainS *spaceCh;
- subspace_dict_chainS *subspCh;
-
- for ( spaceCh = space_dict_root; spaceCh; spaceCh = spaceCh->sd_next ) {
- if ( spaceCh->sd_seg == seg ) {
- for (subspCh = spaceCh->sd_subspaces;subspCh;subspCh=subspCh->ssd_next ) {
- if ( subspCh->ssd_subseg == (int)subseg ) {
- return subspCh;
- }
- }
- }
- }
-
- return NULL;
- }
-
- space_dict_chainS *pa_find_space_by_number(number)
- int number;
- {
- space_dict_chainS *spaceCh;
-
- for (spaceCh = space_dict_root;spaceCh;spaceCh=spaceCh->sd_next ) {
- if ( SPACE_SPNUM(spaceCh) == number ) {
- return spaceCh;
- }
- }
-
- return NULL;
- }
-
- unsigned int pa_subspace_start(space,quadrant)
- space_dict_chainS *space;
- int quadrant;
- {
- if ( (strcasecmp(SPACE_NAME(space),"$PRIVATE$") == 0) &&
- quadrant == 1 ) {
- return 0x40000000;
- }
- else if ( space->sd_seg == data_section && quadrant == 1 ) { /* in case name is */
- /* already converted */
- /* to a space dict- */
- /* ionary index */
- return 0x40000000;
- }
- else
- return 0;
- }
-
- int pa_next_subseg(space)
- space_dict_chainS *space;
- {
-
- space->sd_last_subseg++;
- return space->sd_last_subseg;
- }
-
- int is_last_defined_subspace(ssd)
- subspace_dict_chainS *ssd;
- {
-
- for ( ;ssd; ssd = ssd->ssd_next ) {
- if ( ssd->ssd_defined )
- return FALSE;
- }
-
- return TRUE;
- }
-
- symbolS *pa_get_start_symbol(seg,subseg)
- asection * seg;
- subsegT subseg;
- {
- symbolS *start_symbol;
- subspace_dict_chainS *ssd;
-
- start_symbol = NULL;
-
- /* each time a new space is created, build a symbol called LS$START_seg_subseg$ */
- /* where <space-name> is the name of the space */
- /* the start symbol will be SS_LOCAL and ST_CODE */
-
- if ( seg == bfd_make_section_old_way ( stdoutput, ".text" ) ||
- seg == bfd_make_section_old_way ( stdoutput, ".data" ) ||
- seg == bfd_make_section_old_way ( stdoutput, GDB_DEBUG_SPACE_NAME ) ) {
- ssd = pa_subsegment_to_subspace(seg,subseg);
- if ( ssd ) {
- start_symbol = ssd->ssd_start_sym;
- }
- else
- as_fatal("Internal error: missing subspace for (seg,subseg)=('%s',%d)",
- seg->name,subseg);
- }
- else
- as_fatal("Internal error: attempt to find start symbol for unloadable segment: '%s'",
- seg->name);
-
- return start_symbol;
- }
-
- /*
- Function to define a symbol whose address is the beginning of a subspace.
- This function assumes the symbol is to be defined for the current subspace.
- */
-
- symbolS *pa_set_start_symbol(seg,subseg)
- asection * seg;
- subsegT subseg;
- {
- symbolS *start_symbol;
- subspace_dict_chainS *ssd;
- char *symbol_name;
-
- symbol_name = (char *)xmalloc(strlen("LS$START__000000$")+strlen(seg->name)+1);
-
- sprintf(symbol_name,"LS$START_%s_%03d$",seg->name,subseg);
-
- start_symbol
- = symbol_new(symbol_name,seg,0,frag_now); /* XXX: not sure if value s.b. 0 or frag s.b. NULL */
-
- start_symbol->bsym->flags = BSF_LOCAL; /* XXX: isn't there a macro defined for this? */
-
- /* each time a new space is created, build a symbol called LS$START_seg_subseg$ */
- /* where <space-name> is the name of the space */
- /* the start symbol will be SS_LOCAL and ST_CODE */
- /* This function assumes that (seg,subseg) is a new subsegment(subspace) */
-
- if ( seg == bfd_make_section_old_way ( stdoutput, ".text" ) ||
- seg == bfd_make_section_old_way ( stdoutput, ".data" ) ||
- seg == bfd_make_section_old_way ( stdoutput, GDB_DEBUG_SPACE_NAME ) ) {
- ssd = pa_subsegment_to_subspace(seg,subseg);
- if ( ssd ) {
- ssd->ssd_start_sym = start_symbol;
- }
- else
- as_fatal("Internal error: missing subspace for (seg,subseg)=('%s',%d)",
- seg,subseg);
- }
- else
- as_fatal("Internal error: attempt to define start symbol for unloadable segment: '%s'",
- seg->name);
-
- return start_symbol;
- }
- #endif
-
- int
- obj_elf_frob_symbol (sym, punt)
- symbolS *sym;
- int *punt;
- {
-
- /* If this is a local symbol, are there any relocations for */
- /* which need this symbol? */
-
- /* To find this out, we examine all relocations in all bfd */
- /* sections that have relocations. If there is one that */
- /* references this symbol, we need to keep this symbol. In */
- /* this case, we return a true status. In all other cases, we */
- /* return a false status. */
-
- if ( S_IS_LOCAL(sym) ) {
- asymbol *bsym = sym->bsym;
- bfd *abfd = bsym->the_bfd;
- asection *bsec;
-
- for ( bsec = abfd->sections; bsec; bsec = bsec->next ) {
- struct reloc_cache_entry **rlocs = bsec->orelocation;
- int rcnt = bsec->reloc_count;
-
- if ( rlocs ) {
- int i;
-
- for ( i = 0; i < rcnt; i++ ) {
- if ( rlocs[i]->sym_ptr_ptr
- && rlocs[i]->sym_ptr_ptr[0] == bsym )
- return 1;
- }
- }
- }
- }
- return 0;
- }
-
- static void obj_elf_line() {
- /* Assume delimiter is part of expression.
- BSD4.2 as fails with delightful bug, so we
- are not being incompatible here. */
- new_logical_line((char *)NULL, (int)(get_absolute_expression()));
- demand_empty_rest_of_line();
- } /* obj_elf_line() */
-
- /*
- * stab()
- *
- * Handle .stabX directives, which used to be open-coded.
- * So much creeping featurism overloaded the semantics that we decided
- * to put all .stabX thinking in one place. Here.
- *
- * We try to make any .stabX directive legal. Other people's AS will often
- * do assembly-time consistency checks: eg assigning meaning to n_type bits
- * and "protecting" you from setting them to certain values. (They also zero
- * certain bits before emitting symbols. Tut tut.)
- *
- * If an expression is not absolute we either gripe or use the relocation
- * information. Other people's assemblers silently forget information they
- * don't need and invent information they need that you didn't supply.
- *
- * .stabX directives always make a symbol table entry. It may be junk if
- * the rest of your .stabX directive is malformed.
- */
-
- /*
- * pa_stab_symbol_string()
- *
- * Build a string dictionary entry for a .stabX symbol.
- * The symbol is added to the .stabstr section.
- *
- */
-
- static unsigned int gdb_string_index = 0;
-
- static unsigned int
- elf_stab_symbol_string(string)
- char *string;
- {
- asection *save_seg;
- asection *seg;
- subsegT save_subseg;
- unsigned int length;
- unsigned int old_gdb_string_index;
- char *clengthP;
- int i;
- char c;
-
- old_gdb_string_index = 0;
- length = strlen(string);
- clengthP = (char *)&length;
- if ( length > 0 ) { /* Ordinary case. */
- save_seg = now_seg;
- save_subseg = now_subseg;
-
- /* Create the stab sections, if they are not already created. */
- seg = bfd_get_section_by_name(stdoutput,".stabstr");
- if ( seg == 0 ) {
- seg = bfd_make_section_old_way(stdoutput,".stabstr");
- bfd_set_section_flags (stdoutput,
- seg,
- SEC_READONLY | SEC_ALLOC | SEC_LOAD );
- }
- subseg_new(seg->name,save_subseg);
- old_gdb_string_index = gdb_string_index;
- i = 0;
- while ( (c = *string++) )
- {
- i++;
- gdb_string_index++;
- FRAG_APPEND_1_CHAR( c );
- }
- {
- FRAG_APPEND_1_CHAR( (char)0 );
- i++;
- gdb_string_index++;
- }
- while ( i%4 != 0 ) {
- FRAG_APPEND_1_CHAR( (char)0 );
- i++;
- gdb_string_index++;
- }
- subseg_new(save_seg->name,save_subseg);
- }
-
- return old_gdb_string_index;
- }
-
- unsigned int
- elf_stab_symbol(symbolP,stab_type)
- symbolS *symbolP;
- int stab_type;
- {
- unsigned int length;
- int i;
- char c;
- char *toP;
-
- /* the string index portion of the stab */
-
- toP = frag_more( sizeof(long) +
- sizeof(S_GET_TYPE(symbolP)) +
- sizeof(S_GET_OTHER(symbolP)) +
- sizeof(S_GET_DESC(symbolP)));
- md_number_to_chars(toP,symbolP->sy_name_offset,sizeof(long));
- md_number_to_chars(toP,
- S_GET_TYPE(symbolP),
- sizeof(S_GET_TYPE(symbolP)));
- md_number_to_chars(toP + sizeof(S_GET_TYPE(symbolP)),
- S_GET_OTHER(symbolP),
- sizeof(S_GET_OTHER(symbolP)));
- md_number_to_chars(toP + sizeof(S_GET_TYPE(symbolP))
- + sizeof(S_GET_OTHER(symbolP)),
- S_GET_DESC(symbolP),
- sizeof(S_GET_DESC(symbolP)));
-
- /* n_value has to be relocated */
-
- /* Don't bother relocating if we're only adding in a constant. */
-
- if ((stab_type == 's' || stab_type == 'n') && symbolP->sy_forward == 0)
- S_SET_VALUE(symbolP,S_GET_VALUE(symbolP->sy_forward));
-
- toP = frag_more(4);
- md_number_to_chars(toP, S_GET_VALUE(symbolP),
- sizeof(S_GET_VALUE(symbolP)));
-
- #if 0
- if ( (stab_type == 's' || stab_type == 'n') && symbolP->sy_forward )
- {
- i = S_GET_TYPE(symbolP) & N_TYPE;
- fix_new_hppa(frag_now, /* which frag */
- toP-frag_now->fr_literal, /* where */
- 4, /* size */
- symbolP->sy_forward, /* addr of symbol for this stab */
- (asymbol *)NULL,
- 0,
- i == N_UNDF || i == N_ABS, /* 1 if internal relocation */
- R_HPPA, /* reloc type */
- e_fsel, /* fixup field = F% */
- 32,
- 0, /* arg_reloc descriptor */
- (char *)0
- );
- }
- else if ( stab_type == 'd' )
- {
- fix_new_hppa (frag_now, /* which frag */
- toP-frag_now->fr_literal, /* where */
- 4, /* size */
- symbolP, /* addr of symbol for this stab */
- (asymbol *)NULL,
- 0,
- 0,
- R_HPPA, /* reloc type */
- e_fsel, /* fixup field = F% */
- 32,
- 0, /* arg_reloc descriptor */
- (char *)0
- );
- }
- #else
- /* What needs to replace the above code? */
- abort ();
- #endif
- }
-
- static void obj_elf_stab(what)
- int what;
- {
- extern int listing;
-
- symbolS * symbolP = 0;
- char * string;
- int saved_type = 0;
- int length;
- int goof = 0;
- long longint;
- asection *saved_seg = now_seg;
- asection *seg;
- subsegT subseg = now_subseg;
-
- seg = bfd_get_section_by_name(stdoutput,".stab");
- if ( seg == 0 )
- {
- seg = bfd_make_section_old_way(stdoutput,".stab");
- bfd_set_section_flags (stdoutput,
- seg,
- SEC_READONLY | SEC_ALLOC | SEC_LOAD | SEC_RELOC);
- }
-
- /*
- * Enter with input_line_pointer pointing past .stabX and any following
- * whitespace.
- */
- if (what == 's') {
- string = demand_copy_C_string(& length);
- SKIP_WHITESPACE();
- if (* input_line_pointer == ',')
- input_line_pointer ++;
- else
- {
- as_bad("I need a comma after symbol's name");
- goof = 1;
- }
- }
- else
- string = "";
-
- /*
- * Input_line_pointer->after ','. String->symbol name.
- */
- if (! goof)
- {
- symbolP = symbol_new(string, &bfd_und_section, 0, (struct frag *)0);
-
- /* enter the string in the .stab string table (section .stabstr) */
- symbolP->sy_name_offset = elf_stab_symbol_string(string);
-
- switch (what)
- {
- case 'd':
- S_SET_NAME(symbolP, NULL); /* .stabd feature. */
- S_SET_VALUE(symbolP, obstack_next_free(&frags) - frag_now->fr_literal);
- S_SET_SEGMENT(symbolP, now_seg);
- symbolP->sy_frag = frag_now;
- break;
-
- case 'n':
- symbolP->sy_frag = &zero_address_frag;
- break;
-
- case 's':
- symbolP->sy_frag = & zero_address_frag;
- break;
-
- default:
- BAD_CASE(what);
- break;
- }
-
- if (get_absolute_expression_and_terminator(&longint) == ',')
- {
- saved_type = longint;
- S_SET_TYPE (symbolP, saved_type);
- }
- else
- {
- as_bad("I want a comma after the n_type expression");
- goof = 1;
- input_line_pointer --; /* Backup over a non-',' char. */
- }
- }
-
- if (!goof)
- {
- if (get_absolute_expression_and_terminator(&longint) == ',')
- S_SET_OTHER(symbolP, longint);
- else
- {
- as_bad("I want a comma after the n_other expression");
- goof = 1;
- input_line_pointer--; /* Backup over a non-',' char. */
- }
- }
-
- if (!goof)
- {
- S_SET_DESC(symbolP, get_absolute_expression());
- if (what == 's' || what == 'n')
- {
- if (*input_line_pointer != ',')
- {
- as_bad("I want a comma after the n_desc expression");
- goof = 1;
- }
- else
- {
- input_line_pointer++;
- }
- }
- }
-
- if ( !goof ) {
- if ( what=='s' || what=='n' ) {
- pseudo_set(symbolP);
- S_SET_TYPE (symbolP, saved_type);
- }
- /* Emit the stab symbol. */
- subseg_new(seg->name,subseg);
- elf_stab_symbol(symbolP, what);
- subseg_new(saved_seg->name,subseg);
-
- if ( what=='s' || what=='n' && symbolP->sy_forward == NULL ) {
- /* symbol is not needed in the regular symbol table */
- symbol_remove(symbolP,&symbol_rootP,&symbol_lastP);
- }
-
- }
-
- #ifndef NO_LISTING
- if (listing && !goof)
- switch (S_GET_TYPE (symbolP))
- {
- case N_SLINE:
- listing_source_line (S_GET_DESC (symbolP));
- break;
- case N_SO:
- case N_SOL:
- listing_source_file (string);
- break;
- }
- #endif
-
- if (goof)
- ignore_rest_of_line();
- else
- demand_empty_rest_of_line ();
- } /* obj_elf_stab() */
-
- static void obj_elf_desc() {
- char *name;
- char c;
- char *p;
- symbolS *symbolP;
- int temp;
-
- /*
- * Frob invented at RMS' request. Set the n_desc of a symbol.
- */
- name = input_line_pointer;
- c = get_symbol_end();
- p = input_line_pointer;
- * p = c;
- SKIP_WHITESPACE();
- if (*input_line_pointer != ',') {
- *p = 0;
- as_bad("Expected comma after name \"%s\"", name);
- *p = c;
- ignore_rest_of_line();
- } else {
- input_line_pointer ++;
- temp = get_absolute_expression();
- *p = 0;
- symbolP = symbol_find_or_make(name);
- *p = c;
- S_SET_DESC(symbolP,temp);
- }
- demand_empty_rest_of_line();
- } /* obj_elf_desc() */
-
- void obj_read_begin_hook()
- {
- return;
- } /* obj_read_begin_hook() */
-
- void obj_symbol_new_hook(symbolP)
- symbolS *symbolP;
- {
- elf_symbol_type *esym = (elf_symbol_type *)symbolP;
-
- /* there is an Elf_Internal_Sym and an Elf_External_Sym. For */
- /* now, just zero them out. */
-
- bzero(&esym->internal_elf_sym,sizeof(Elf_Internal_Sym));
- bzero(&esym->native_elf_sym,sizeof(Elf_External_Sym));
- return;
- } /* obj_symbol_new_hook() */
-
- static void obj_elf_version()
- {
- char *name;
- unsigned int c;
- char ch;
- char *p;
- int temp;
- symbolS * symbolP;
- asection *seg = now_seg;
- subsegT subseg = now_subseg;
- Elf_Internal_Note i_note;
- Elf_External_Note e_note;
- asection *note_secp = (asection *)NULL;
- int i, len;
-
- SKIP_WHITESPACE();
- if (* input_line_pointer == '\"') {
- ++input_line_pointer; /* -> 1st char of string. */
- name = input_line_pointer;
-
- while ( is_a_char(c = next_char_of_string()) )
- ;
- c = *input_line_pointer;
- *input_line_pointer = '\0';
- *(input_line_pointer-1) = '\0';
- *input_line_pointer = c;
-
- /* create the .note section if this is the first version string */
-
- note_secp = bfd_get_section_by_name(stdoutput,".note");
- if ( note_secp == (asection *)NULL ) {
- note_secp = bfd_make_section_old_way(stdoutput,".note");
- bfd_set_section_flags(stdoutput,
- note_secp,
- SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS);
- }
-
- /* process the version string */
-
- subseg_new((char *)note_secp->name, 0);
- len = strlen(name);
-
- i_note.namesz = ((len + 1) + 3) & ~3; /* round this to word boundary */
- i_note.descsz = 0; /* no description */
- i_note.type = NT_VERSION;
- p = frag_more(sizeof(e_note.namesz));
- md_number_to_chars(p, i_note.namesz, 4);
- p = frag_more(sizeof(e_note.descsz));
- md_number_to_chars(p, i_note.descsz, 4);
- p = frag_more(sizeof(e_note.type));
- md_number_to_chars(p, i_note.type, 4);
-
- for ( i = 0; i < len; i++ ) {
- ch = *(name + i);
- {
- FRAG_APPEND_1_CHAR( ch );
- }
- }
- frag_align(2,0);
-
- subseg_new((char *)seg->name,subseg);
- }
- else {
- as_bad( "Expected \"-ed string" );
- }
- demand_empty_rest_of_line();
- }
-
- static void
- obj_elf_size ()
- {
- char *name = input_line_pointer;
- char c = get_symbol_end ();
- char *p;
- expressionS exp;
- segT sec;
- symbolS *sym;
-
- p = input_line_pointer;
- *p = c;
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
- {
- *p = 0;
- as_bad ("expected comma after name `%s' in .size directive", name);
- *p = c;
- ignore_rest_of_line ();
- return;
- }
- input_line_pointer++;
- sec = expression (&exp);
- if (sec == absent_section)
- {
- as_bad ("missing expression in .size directive");
- exp.X_seg = absolute_section;
- exp.X_add_number = 0;
- }
- *p = 0;
- sym = symbol_find_or_make (name);
- *p = c;
- if (sec == absolute_section)
- S_SET_SIZE (sym, exp.X_add_number);
- else
- as_tsktsk (".size not yet supported, ignored");
- demand_empty_rest_of_line ();
- }
-
- static void
- obj_elf_type ()
- {
- char *name = input_line_pointer;
- char c = get_symbol_end ();
- char *p;
- int type;
- symbolS *sym;
-
- p = input_line_pointer;
- *p = c;
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
- {
- as_bad ("expected comma after name in .type directive");
- egress:
- ignore_rest_of_line ();
- return;
- }
- input_line_pointer++;
- SKIP_WHITESPACE ();
- if (*input_line_pointer != '#')
- {
- as_bad ("expected `#' after comma in .type directive");
- goto egress;
- }
- input_line_pointer++;
- if (!strncmp ("function", input_line_pointer, sizeof ("function") - 1))
- {
- type = BSF_FUNCTION;
- input_line_pointer += sizeof ("function") - 1;
- }
- else
- {
- as_bad ("unrecognized symbol type, ignored");
- goto egress;
- }
- demand_empty_rest_of_line ();
- *p = 0;
- sym = symbol_find_or_make (name);
- sym->bsym->flags = type;
- }
-
- static void
- obj_elf_ident ()
- {
- int xxx;
- char * string;
-
- string = demand_copy_C_string (&xxx);
- as_tsktsk (".ident not supported, ignoring");
- }
-