binutils-gdb/gdb/tm-sysv4.h

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1991-12-20 20:08:12 +01:00
/* Macro definitions for GDB on all SVR4 target systems.
Copyright (C) 1991, 1992, Free Software Foundation, Inc.
Written by Fred Fish at Cygnus Support (fnf@cygnus.com).
1991-12-20 20:08:12 +01:00
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "solib.h" /* Support for shared libraries. */
/* For SVR4 shared libraries, each call to a library routine goes through
a small piece of trampoline code in the ".init" section. Although each
of these fragments is labeled with the name of the routine being called,
the gdb symbol reading code deliberately ignores them so it won't confuse
them with the real functions. It does however know about the label that
precedes all of the fragments, which is "_init". Thus when we lookup a
function that corresponds to a PC value which is in one of the trampoline
fragments, we'll appear to be in the function "_init". The following
macro will evaluate to nonzero when NAME is valid and matches "_init".
The horribly ugly wait_for_inferior() routine uses this macro to detect
when we have stepped into one of these fragments. */
* defs.h (STRCMP, STREQ, STREQN): New macros. * defs.h (demangle_and_match): Remove prototype. * dwarfread.c (STREQ, STREQN): Remove macros, replaced with STREQ and STREQN defined in defs.h. * dwarfread.c (set_cu_language): For completely unknown languages, try to deduce the language from the filename. Retain behavior that for known languages we don't know how to handle, we use language_unknown. * dwarfread.c (enum_type, symthesize_typedef): Initialize language and demangled name fields in symbol. * dwarfread.c, mipsread.c, partial-stab.h: For all usages of ADD_PSYMBOL_TO_LIST, add language and objfile parameters. * dwarfread.c (new_symbol): Attempt to demangle C++ symbol names and cache the results in SYMBOL_DEMANGLED_NAME for the symbol. * elfread.c (STREQ): Remove macro, use STREQ defined in defs.h. Replace usages throughout. * elfread.c (demangle.h): Include. * elfread.c (record_minimal_symbol): Remove prototype and function. * gdbtypes.h, symtab.h (B_SET, B_CLR, B_TST, B_TYPE, B_BYTES, B_CLRALL): Moved from symtab.h to gdbtypes.h. * infcmd.c (jump_command): Remove code to demangle name and add it to a cleanup list. Now just use SYMBOL_DEMANGLED_NAME. * minsyms.c (demangle.h): Include. * minsyms.c (lookup_minimal_symbol): Indent comment to match code. * minsyms.c (install_minimal_symbols): Attempt to demangle symbol names as C++ names, and cache them in SYMBOL_DEMANGLED_NAME. * mipsread.c (psymtab_language): Add static variable. * stabsread.c (demangle.h): Include. * stabsread.c (define_symbol): Attempt to demangle C++ symbol names and cache them in the SYMBOL_DEMANGLED_NAME field. * stack.c (return_command): Remove explicit demangling of name and use of cleanups. Just use SYMBOL_DEMANGLED_NAME. * symfile.c (demangle.h): Include. * symfile.c (add_psymbol_to_list, add_psymbol_addr_to_list): Fix to match macros in symfile.h and allow them to be compiled if INLINE_ADD_PSYMBOL is not true. * symfile.h (INLINE_ADD_PSYMBOL): Default to true if not set. * symfile.h (ADD_PSYMBOL_*): Add language and objfile parameters. Add code to demangle and cache C++ symbol names. Use macro form if INLINE_ADD_PSYMBOL is true, otherwise use C function form. * symmisc.c (add_psymbol_to_list, add_psymbol_addr_to_list): Remove, also defined in symfile.c, which we already fixed. * symtab.c (expensive_mangler): Remove prototype and function. * symtab.c (find_methods): Remove physnames parameter and fix prototype to match. * symtab.c (completion_list_add_symbol): Name changed to completion_list_add_name. * symtab.c (COMPLETION_LIST_ADD_SYMBOL): New macro, adds both the normal symbol name and the cached C++ demangled name. * symtab.c (lookup_demangled_partial_symbol, lookup_demangled_block_symbol): Remove prototypes and functions. * symtab.c (lookup_symbol): Remove use of expensive_mangler, use lookup_block_symbol instead of lookup_demangled_block_symbol. Remove code to try demangling names and matching them. * symtab.c (lookup_partial_symbol, lookup_block_symbol): Fix to try matching the cached demangled name if no match is found using the regular symbol name. * symtab.c (find_methods): Remove unused physnames array. * symtab.c (name_match, NAME_MATCH): Remove function and macro, replaced with SYMBOL_MATCHES_REGEXP from symtab.h. * symtab.c (completion_list_add_symbol): Rewrite to use cached C++ demangled symbol names. * symtab.h: Much reformatting of structures and such to add whitespace to make them more readable, and make them more consistent with other gdb structure definitions. * symtab.h (general_symbol_info): New struct containing fields common to all symbols. * symtab.h (SYMBOL_LANGUAGE, SYMBOL_DEMANGLED_NAME, SYMBOL_SOURCE_NAME, SYMBOL_LINKAGE_NAME, SYMBOL_MATCHES_NAME, SYMBOL_MATCHES_REGEXP, MSYMBOL_INFO, MSYMBOL_TYPE): New macros. * symtab. (struct minimal_symbol, struct partial_symbol, struct symbol): Use general_symbol_info struct. * utils.c (demangle_and_match): Remove, no longer used. * valops.c (demangle.h): Include. * xcoffexec.c (eq): Remove macro, replace usages with STREQ. * blockframe.c, breakpoint.c, c-exp.y, c-valprint.c, dbxread.c, infcmd.c, m2-exp.y, minsyms.c, objfiles.h, solib.c, stack.c, symmisc.c, symtab.c, valops.c: Replace references to minimal symbol fields with appropriate macros. * breakpoint.c, buildsym.c, c-exp.y, c-typeprint.c, c-valprint.c, coffread.c, command.c, convex-tdep.c, cp-valprint.c, dbxread.c, demangle.c, elfread.c, energize.c, environ.c, exec.c, gdbtypes.c, i960-tdep.c, infrun.c, infrun-hacked.c, language.c, main.c, minsyms.c, mipsread.c, partial-stab.h, remote-es1800.c, remote-nindy.c, remote-udi.c, rs6000-tdep.c, solib.c, source.c, sparc-pinsn.c, stabsread.c, standalone.c, state.c, stuff.c, symfile.c, symmisc.c, symtab.c, symtab.h, tm-sysv4.h, tm-ultra3.h, values.c, xcoffexec.c, xcoffread.c: Replace strcmp and strncmp usages with STREQ, STREQN, or STRCMP as appropriate. * breakpoint.c, buildsym.c, c-typeprint.c, expprint.c, findvar.c, mipsread.c, printcmd.c, source.c, stabsread.c, stack.c, symmisc.c, tm-29k.h, valops.c, values.c: Replace SYMBOL_NAME references with SYMBOL_SOURCE_NAME or SYMBOL_LINKAGE_NAME as appropriate. * buildsym.c (start_subfile, patch_subfile_names): Default the source language to what can be deduced from the filename. * buildsym.c (end_symtab): Update the source language in the allocated symtab to match what we have been using. * buildsym.h (struct subfile): Add a language field. * c-typeprint.c (c_print_type): Remove code to do explicit demangling. * dbxread.c (psymtab_language): Add static variable. * dbxread.c (start_psymtab): Initialize psymtab_language using deduce_language_from_filename.
1992-12-23 07:34:57 +01:00
#define IN_SOLIB_TRAMPOLINE(pc,name) ((name) && (STREQ ("_init", name)))
/* In SVR4 ELF files, the ABI defines (pg. 4-25) that "External C symbols
have the same names in C, assembly code, and object files' symbol
tables." So... */
#undef NAMES_HAVE_UNDERSCORE
* tm-sun4sol2.h (CPLUS_MARKER): Remove, now set in tm-sysv4.h. * tm-sysv4.h (CPLUS_MARKER): By default, g++ uses '.' as the CPLUS_MARKER for all SVR4 systems, so follow suit. * defs.h (strdup_demangled): Remove prototype. * dwarfread.c (enum_type, synthesize_typedef): Use new macro SYMBOL_INIT_LANGUAGE_SPECIFIC. * dwarfread.c (new_symbol): Use SYMBOL_INIT_DEMANGLED_NAME. * minsyms.c (install_minimal_symbols, prim_record_minimal_symbol, prim_record_minimal_symbol_and_info): Use new macro SYMBOL_INIT_LANGUAGE_SPECIFIC. * minsyms.c (install_minimal_symbols): Use new macro SYMBOL_INIT_DEMANGLED_NAME. * stabsread.c (define_symbol): Use new macro SYMBOL_INIT_DEMANGLED_NAME. * symfile.c (add_psymbol_to_list, add_psymbol_addr_to_list): Use new macro SYMBOL_INIT_DEMANGLED_NAME. * symfile.h (ADD_PSYMBOL_VT_TO_LIST): Use new macro SYMBOL_INIT_DEMANGLED_NAME. * symmisc.c (dump_msymbols, dump_symtab, print_partial_symbol): SYMBOL_DEMANGLED_NAME now tests language itself. * symtab.c (COMPLETION_LIST_ADD_SYMBOL): SYMBOL_DEMANGLED_NAME now tests language itself. * symtab.h (SYMBOL_CPLUS_DEMANGLED_NAME): New macro that does what SYMBOL_DEMANGLED_NAME used to do, directly access the C++ mangled name member in the language dependent portion of a symbol. * symtab.h (SYMBOL_DEMANGLED_NAME): New macro that returns the mangled name member appropriate for a symbol's language. * symtab.h (SYMBOL_SOURCE_NAME, SYMBOL_LINKAGE_NAME, SYMBOL_MATCHES_NAME, SYMBOL_MATCHES_REGEXP): SYMBOL_DEMANGLED_NAME now tests language itself. * symtab.h (SYMBOL_INIT_LANGUAGE_SPECIFIC): New macro that initializes language dependent portion of symbol. * symtab.h (SYMBOL_INIT_DEMANGLED_NAME): New macro that demangles and caches the demangled form of symbol names. * utils.c (fputs_demangled, fprint_symbol): Use current language to select an appropriate demangling algorithm. * utils.c (strdup_demangled): Remove, no longer used. **** start-sanitize-chill **** * symtab.h (SYMBOL_CHILL_DEMANGLED_NAME): New macro that directly access the Chill mangled name member in the language dependent portion of a symbol. * ch-lang.c (chill_demangle): New function, simple demangler. * defs.h (chill_demangle): Add prototype. * symtab.h (language_dependent_info): Add struct for Chill. **** end-sanitize-chill ****
1993-01-01 21:29:41 +01:00
/* It is unknown which, if any, SVR4 assemblers do not accept dollar signs
in identifiers. The default in G++ is to use dots instead, for all SVR4
systems, so we make that our default also. FIXME: There should be some
way to get G++ to tell us what CPLUS_MARKER it is using, perhaps by
stashing it in the debugging information as part of the name of an
invented symbol ("gcc_cplus_marker$" for example). */
#undef CPLUS_MARKER
#define CPLUS_MARKER '.'