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Diffstat (limited to 'gdb/psympriv.h')
| -rw-r--r-- | gdb/psympriv.h | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/gdb/psympriv.h b/gdb/psympriv.h new file mode 100644 index 0000000..42fa427 --- /dev/null +++ b/gdb/psympriv.h @@ -0,0 +1,166 @@ +/* Private partial symbol table definitions. + + Copyright (C) 2009 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 3 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, see <http://www.gnu.org/licenses/>. */ + +#ifndef PSYMPRIV_H +#define PSYMPRIV_H + +#include "psymtab.h" + +/* A partial_symbol records the name, domain, and address class of + symbols whose types we have not parsed yet. For functions, it also + contains their memory address, so we can find them from a PC value. + Each partial_symbol sits in a partial_symtab, all of which are chained + on a partial symtab list and which points to the corresponding + normal symtab once the partial_symtab has been referenced. */ + +/* This structure is space critical. See space comments at the top of + symtab.h. */ + +struct partial_symbol +{ + + /* The general symbol info required for all types of symbols. */ + + struct general_symbol_info ginfo; + + /* Name space code. */ + + ENUM_BITFIELD(domain_enum_tag) domain : 6; + + /* Address class (for info_symbols) */ + + ENUM_BITFIELD(address_class) aclass : 6; + +}; + +#define PSYMBOL_DOMAIN(psymbol) (psymbol)->domain +#define PSYMBOL_CLASS(psymbol) (psymbol)->aclass + +/* Each source file that has not been fully read in is represented by + a partial_symtab. This contains the information on where in the + executable the debugging symbols for a specific file are, and a + list of names of global symbols which are located in this file. + They are all chained on partial symtab lists. + + Even after the source file has been read into a symtab, the + partial_symtab remains around. They are allocated on an obstack, + objfile_obstack. */ + +struct partial_symtab +{ + + /* Chain of all existing partial symtabs. */ + + struct partial_symtab *next; + + /* Name of the source file which this partial_symtab defines */ + + char *filename; + + /* Full path of the source file. NULL if not known. */ + + char *fullname; + + /* Directory in which it was compiled, or NULL if we don't know. */ + + char *dirname; + + /* Information about the object file from which symbols should be read. */ + + struct objfile *objfile; + + /* Set of relocation offsets to apply to each section. */ + + struct section_offsets *section_offsets; + + /* Range of text addresses covered by this file; texthigh is the + beginning of the next section. */ + + CORE_ADDR textlow; + CORE_ADDR texthigh; + + /* Array of pointers to all of the partial_symtab's which this one + depends on. Since this array can only be set to previous or + the current (?) psymtab, this dependency tree is guaranteed not + to have any loops. "depends on" means that symbols must be read + for the dependencies before being read for this psymtab; this is + for type references in stabs, where if foo.c includes foo.h, declarations + in foo.h may use type numbers defined in foo.c. For other debugging + formats there may be no need to use dependencies. */ + + struct partial_symtab **dependencies; + + int number_of_dependencies; + + /* Global symbol list. This list will be sorted after readin to + improve access. Binary search will be the usual method of + finding a symbol within it. globals_offset is an integer offset + within global_psymbols[]. */ + + int globals_offset; + int n_global_syms; + + /* Static symbol list. This list will *not* be sorted after readin; + to find a symbol in it, exhaustive search must be used. This is + reasonable because searches through this list will eventually + lead to either the read in of a files symbols for real (assumed + to take a *lot* of time; check) or an error (and we don't care + how long errors take). This is an offset and size within + static_psymbols[]. */ + + int statics_offset; + int n_static_syms; + + /* Pointer to symtab eventually allocated for this source file, 0 if + !readin or if we haven't looked for the symtab after it was readin. */ + + struct symtab *symtab; + + /* Pointer to function which will read in the symtab corresponding to + this psymtab. */ + + void (*read_symtab) (struct partial_symtab *); + + /* Information that lets read_symtab() locate the part of the symbol table + that this psymtab corresponds to. This information is private to the + format-dependent symbol reading routines. For further detail examine + the various symbol reading modules. Should really be (void *) but is + (char *) as with other such gdb variables. (FIXME) */ + + char *read_symtab_private; + + /* Non-zero if the symtab corresponding to this psymtab has been readin */ + + unsigned char readin; +}; + +extern void sort_pst_symbols (struct partial_symtab *); + +/* Traverse all psymtabs in one objfile. */ + +#define ALL_OBJFILE_PSYMTABS(objfile, p) \ + for ((p) = (objfile) -> psymtabs; (p) != NULL; (p) = (p) -> next) + +/* Traverse all psymtabs in all objfiles. */ + +#define ALL_PSYMTABS(objfile, p) \ + ALL_OBJFILES (objfile) \ + ALL_OBJFILE_PSYMTABS (objfile, p) + +#endif /* PSYMPRIV_H */ |