binutils-gdb/gdb/source.c

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1991-03-29 00:26:26 +08:00
/* List lines of source files for GDB, the GNU debugger.
Copyright 1986, 87, 88, 89, 91, 92, 93, 94, 95, 96, 97, 1998
Free Software Foundation, Inc.
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This file is part of GDB.
This program is free software; you can redistribute it and/or modify
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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.
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This program is distributed in the hope that it will be useful,
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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. */
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#include "defs.h"
#include "symtab.h"
#include "expression.h"
#include "language.h"
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#include "command.h"
#include "gdbcmd.h"
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#include "frame.h"
#include "value.h"
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#include <sys/types.h>
* configure.in: Check for working mmap, ansi headers, string.h, strings.h, and memory.h. * configure: Regenerated. * gdb_stat.h: New file, "portable" <sys/stat.h>. * gdb_string.h: New file, "portable" <string.h>. * altos-xdep.c, arm-tdep.c, arm-xdep.c, convex-tdep.c, convex-xdep.c, coredep.c, cxux-nat.c, dbxread.c, exec.c, gould-xdep.c, hppa-tdep.c, i386aix-nat.c, i386b-nat.c, i386mach-nat.c, i386v-nat.c, infptrace.c, m88k-nat.c, main.c, mdebugread.c, objfiles.c, os9kread.c, procfs.c, pyr-xdep.c, rs6000-nat.c, source.c, standalone.c, stuff.c, sun386-nat.c, symfile.c, symm-nat.c, symm-tdep.c, symtab.c, top.c, ultra3-nat.c, ultra3-xdep.c, umax-xdep.c, xcoffread.c: Include "gdb_stat.h" instead of <sys/stat.h>. * alpha-tdep.c, breakpoint.c, buildsym.c, c-typeprint.c, ch-typeprint.c, coffread.c, command.c, core-sol2.c, core-svr4.c, core.c, corelow.c, cp-valprint.c, dbxread.c, dcache.c, demangle.c, dpx2-nat.c, dstread.c, dwarfread.c, elfread.c, environ.c, eval.c, exec.c, f-lang.c, f-typeprint.c, f-valprint.c, findvar.c, fork-child.c, gdbtypes.c, hpread.c, i386-tdep.c, infcmd.c, inflow.c, infptrace.c, infrun.c, irix5-nat.c, language.c, m2-typeprint.c, main.c, mdebugread.c, minsyms.c, mipsread.c, monitor.c, nlmread.c, objfiles.c, os9kread.c, osfsolib.c, parse.c, printcmd.c, procfs.c, regex.c, remote-adapt.c, remote-arc.c, remote-array.c, remote-bug.c, remote-e7000.c, remote-eb.c, remote-es.c, remote-hms.c, remote-mm.c, remote-os9k.c, remote-pa.c, remote-sim.c, remote-st.c, remote-udi.c, remote-utils.c, remote-vx.c, remote-vx29k.c, remote-vx68.c, remote-vx960.c, remote-vxmips.c, remote-vxsparc.c, remote.c, solib.c, somread.c, source.c, stabsread.c, stack.c, symfile.c, symmisc.c, symtab.c, target.c, top.c, typeprint.c, utils.c, valarith.c, valops.c, valprint.c, values.c, xcoffread.c: Include "gdb_string.h" instead of <string.h>. * gdbtk.c: Likewise. * config/xm-sysv4.h, i386/xm-ptx.h, m68k/xm-sun3os4.h, sparc/xm-sun4os4.h (HAVE_MMAP): Removed. * config/xm-lynx.h, config/i386/xm-ptx.h, config/m68k/nm-apollo68b.h, config/m68k/xm-hp300hpux.h, config/mips/xm-irix3.h, config/mips/xm-mips.h, config/mips/xm-news-mips.h, config/mips/xm-riscos.h, config/pa/hppah.h, config/rs6000/xm-rs6000.h, config/sparc/xm-sun4os4.h, config/sparc/xm-sun4sol2.h, config/vax/xm-vaxbsd.h, config/vax/xm-vaxult.h, config/vax/xm-vaxult2.h (MEM_FNS_DECLARED): Removed. * config/mips/xm-irix3.h, config/mips/xm-mips.h, config/pa/xm-hppah.h (memcpy, memset): Removed declarations.
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#include "gdb_string.h"
#include "gdb_stat.h"
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#include <fcntl.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
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#include "gdbcore.h"
#include "gnu-regex.h"
#include "symfile.h"
#include "objfiles.h"
gcc -Wall lint: * breakpoint.c (watchpoint_check): Remove unused variable b. * stack.c (print_frame_info): Move sp and buf inside #if. * eval.c (evaluate_subexp): Remove unused variables pp, mangle_ptr, ptr, and mangle_tstr. * valarith.c (value_x_binop): Remove unused variables mangle_tstr and mangle_ptr. * symtab.c (lookup_symtab): Put variable copy inside #if. (decode_line_1): Put variable q1 inside #if 0. * target.h: Declare target_link. * infrun.c (wait_for_inferior): Remove unused variables signame. * remote.c (remote_resume): Remove unused variable name. * c-exp.y (parse_number): Parenthesize operand of shift. * dbxread.c (record_minimal_symbol): Parenthesize operand of && (this is a semantic change, the warning seems to have detected a bug). * dbxread.c (end_psymtab): Move variable p1 inside #if. * coffread.c: Move variable temptype inside #if. * ch-typeprint.c (chill_type_print_base): Remove unused variable name. * ch-valprint.c: #include typeprint.h and ch-lang.h. (chill_val_print): Remove unused variable in_range. (chill_val_print): Remove statement "length > TYPE_LENGTH (type);". (chill_val_print): Add default case for switch. * stabsread.h: Declare stabsect_build_psymtabs. * os9kread.c (read_minimal_symbols): Make this return void. (os9k_symfile_read): Remove unused variables stb_exist and val. (os9k_symfile_init): Remove unused variable val. (fill_sym): Remove unused variable id. (read_os9k_psymtab): Put variable back_to inside #if 0. Remove unused variable nsl. Remove unused variable symfile_bfd. #if 0 unused variables lbrac_unmatched_complaint and lbrac_mismatch_complaint. Remove declaration for non-existent function os9k_next_symbol_text. * annotate.c, annotate.h: New files, containing a function for each annotation which outputs it. * Move breakpoints_changed from breakpoint.c to annotate.c. * breakpoint.c, blockframe.c, infrun.c, cp-valprint.c, main.c, printcmd.c, source.c, stack.c, utils.c, valprint.c: Use annotate.c functions to output annotations. * Makefile.in (OBS): Add annotate.o.
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#include "annotate.h"
#include "gdbtypes.h"
#ifdef CRLF_SOURCE_FILES
/* Define CRLF_SOURCE_FILES in an xm-*.h file if source files on the
host use \r\n rather than just \n. Defining CRLF_SOURCE_FILES is
much faster than defining LSEEK_NOT_LINEAR. */
#ifndef O_BINARY
#define O_BINARY 0
#endif
#define OPEN_MODE (O_RDONLY | O_BINARY)
#define FDOPEN_MODE FOPEN_RB
#else /* ! defined (CRLF_SOURCE_FILES) */
#define OPEN_MODE O_RDONLY
#define FDOPEN_MODE FOPEN_RT
#endif /* ! defined (CRLF_SOURCE_FILES) */
/* Prototypes for local functions. */
static int open_source_file PARAMS ((struct symtab *));
static int get_filename_and_charpos PARAMS ((struct symtab *, char **));
static void reverse_search_command PARAMS ((char *, int));
static void forward_search_command PARAMS ((char *, int));
static void line_info PARAMS ((char *, int));
static void list_command PARAMS ((char *, int));
static void ambiguous_line_spec PARAMS ((struct symtabs_and_lines *));
static void source_info PARAMS ((char *, int));
static void show_directories PARAMS ((char *, int));
static void find_source_lines PARAMS ((struct symtab *, int));
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/* Path of directories to search for source files.
Same format as the PATH environment variable's value. */
char *source_path;
/* Symtab of default file for listing lines of. */
struct symtab *current_source_symtab;
/* Default next line to list. */
int current_source_line;
/* Default number of lines to print with commands like "list".
This is based on guessing how many long (i.e. more than chars_per_line
characters) lines there will be. To be completely correct, "list"
and friends should be rewritten to count characters and see where
things are wrapping, but that would be a fair amount of work. */
int lines_to_list = 10;
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/* Line number of last line printed. Default for various commands.
current_source_line is usually, but not always, the same as this. */
static int last_line_listed;
/* First line number listed by last listing command. */
static int first_line_listed;
/* Set the source file default for the "list" command to be S.
If S is NULL, and we don't have a default, find one. This
should only be called when the user actually tries to use the
default, since we produce an error if we can't find a reasonable
default. Also, since this can cause symbols to be read, doing it
before we need to would make things slower than necessary. */
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void
select_source_symtab (s)
register struct symtab *s;
{
struct symtabs_and_lines sals;
struct symtab_and_line sal;
struct partial_symtab *ps;
struct partial_symtab *cs_pst = 0;
struct objfile *ofp;
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if (s)
{
current_source_symtab = s;
current_source_line = 1;
return;
}
if (current_source_symtab)
return;
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/* Make the default place to list be the function `main'
if one exists. */
if (lookup_symbol ("main", 0, VAR_NAMESPACE, 0, NULL))
{
sals = decode_line_spec ("main", 1);
sal = sals.sals[0];
free (sals.sals);
current_source_symtab = sal.symtab;
current_source_line = max (sal.line - (lines_to_list - 1), 1);
if (current_source_symtab)
return;
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}
/* All right; find the last file in the symtab list (ignoring .h's). */
current_source_line = 1;
for (ofp = object_files; ofp != NULL; ofp = ofp -> next)
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{
for (s = ofp -> symtabs; s; s = s->next)
{
char *name = s -> filename;
int len = strlen (name);
* 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.
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if (! (len > 2 && (STREQ (&name[len - 2], ".h"))))
{
current_source_symtab = s;
}
}
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}
if (current_source_symtab)
return;
/* Howabout the partial symbol tables? */
for (ofp = object_files; ofp != NULL; ofp = ofp -> next)
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{
for (ps = ofp -> psymtabs; ps != NULL; ps = ps -> next)
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{
char *name = ps -> filename;
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int len = strlen (name);
* 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.
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if (! (len > 2 && (STREQ (&name[len - 2], ".h"))))
{
cs_pst = ps;
}
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}
}
if (cs_pst)
{
if (cs_pst -> readin)
{
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fatal ("Internal: select_source_symtab: readin pst found and no symtabs.");
}
else
{
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current_source_symtab = PSYMTAB_TO_SYMTAB (cs_pst);
}
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}
if (current_source_symtab)
return;
error ("Can't find a default source file");
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}
static void
show_directories (ignore, from_tty)
char *ignore;
int from_tty;
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{
puts_filtered ("Source directories searched: ");
puts_filtered (source_path);
puts_filtered ("\n");
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}
/* Forget what we learned about line positions in source files, and
which directories contain them; must check again now since files
may be found in a different directory now. */
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void
forget_cached_source_info ()
{
register struct symtab *s;
register struct objfile *objfile;
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for (objfile = object_files; objfile != NULL; objfile = objfile -> next)
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{
for (s = objfile -> symtabs; s != NULL; s = s -> next)
1991-03-29 00:26:26 +08:00
{
if (s -> line_charpos != NULL)
{
mfree (objfile -> md, s -> line_charpos);
s -> line_charpos = NULL;
}
if (s -> fullname != NULL)
{
mfree (objfile -> md, s -> fullname);
s -> fullname = NULL;
}
1991-03-29 00:26:26 +08:00
}
}
}
void
init_source_path ()
{
char buf[20];
sprintf (buf, "$cdir%c$cwd", DIRNAME_SEPARATOR);
source_path = strsave (buf);
1991-03-29 00:26:26 +08:00
forget_cached_source_info ();
}
/* Add zero or more directories to the front of the source path. */
void
directory_command (dirname, from_tty)
char *dirname;
int from_tty;
{
dont_repeat ();
/* FIXME, this goes to "delete dir"... */
if (dirname == 0)
{
if (query ("Reinitialize source path to empty? "))
1991-03-29 00:26:26 +08:00
{
free (source_path);
init_source_path ();
}
}
else
mod_path (dirname, &source_path);
1991-03-29 00:26:26 +08:00
if (from_tty)
show_directories ((char *)0, from_tty);
1991-03-29 00:26:26 +08:00
forget_cached_source_info ();
}
/* Add zero or more directories to the front of an arbitrary path. */
void
mod_path (dirname, which_path)
1991-03-29 00:26:26 +08:00
char *dirname;
char **which_path;
{
char *old = *which_path;
int prefix = 0;
if (dirname == 0)
return;
dirname = strsave (dirname);
make_cleanup (free, dirname);
do
{
char *name = dirname;
register char *p;
struct stat st;
{
char *separator = strchr (name, DIRNAME_SEPARATOR);
char *space = strchr (name, ' ');
char *tab = strchr (name, '\t');
if (separator == 0 && space == 0 && tab == 0)
1991-03-29 00:26:26 +08:00
p = dirname = name + strlen (name);
else
{
p = 0;
if (separator != 0 && (p == 0 || separator < p))
p = separator;
1991-03-29 00:26:26 +08:00
if (space != 0 && (p == 0 || space < p))
p = space;
if (tab != 0 && (p == 0 || tab < p))
p = tab;
dirname = p + 1;
while (*dirname == DIRNAME_SEPARATOR
|| *dirname == ' '
|| *dirname == '\t')
1991-03-29 00:26:26 +08:00
++dirname;
}
}
#ifndef WIN32
/* On win32 h:\ is different to h: */
if (SLASH_P (p[-1]))
1991-03-29 00:26:26 +08:00
/* Sigh. "foo/" => "foo" */
--p;
#endif
1991-03-29 00:26:26 +08:00
*p = '\0';
while (p[-1] == '.')
{
if (p - name == 1)
{
/* "." => getwd (). */
name = current_directory;
goto append;
}
else if (SLASH_P (p[-2]))
1991-03-29 00:26:26 +08:00
{
if (p - name == 2)
{
/* "/." => "/". */
*--p = '\0';
goto append;
}
else
{
/* "...foo/." => "...foo". */
p -= 2;
*p = '\0';
continue;
}
}
else
break;
}
if (name[0] == '~')
name = tilde_expand (name);
else if (!ROOTED_P (name) && name[0] != '$')
name = concat (current_directory, SLASH_STRING, name, NULL);
1991-03-29 00:26:26 +08:00
else
name = savestring (name, p - name);
make_cleanup (free, name);
/* Unless it's a variable, check existence. */
if (name[0] != '$') {
/* These are warnings, not errors, since we don't want a
non-existent directory in a .gdbinit file to stop processing
of the .gdbinit file.
Whether they get added to the path is more debatable. Current
answer is yes, in case the user wants to go make the directory
or whatever. If the directory continues to not exist/not be
a directory/etc, then having them in the path should be
harmless. */
1991-03-29 00:26:26 +08:00
if (stat (name, &st) < 0)
{
int save_errno = errno;
fprintf_unfiltered (gdb_stderr, "Warning: ");
print_sys_errmsg (name, save_errno);
}
else if ((st.st_mode & S_IFMT) != S_IFDIR)
warning ("%s is not a directory.", name);
1991-03-29 00:26:26 +08:00
}
append:
{
register unsigned int len = strlen (name);
p = *which_path;
while (1)
{
if (!strncmp (p, name, len)
&& (p[len] == '\0' || p[len] == DIRNAME_SEPARATOR))
1991-03-29 00:26:26 +08:00
{
/* Found it in the search path, remove old copy */
if (p > *which_path)
p--; /* Back over leading separator */
1991-03-29 00:26:26 +08:00
if (prefix > p - *which_path)
goto skip_dup; /* Same dir twice in one cmd */
strcpy (p, &p[len+1]); /* Copy from next \0 or : */
}
p = strchr (p, DIRNAME_SEPARATOR);
1991-03-29 00:26:26 +08:00
if (p != 0)
++p;
else
break;
}
if (p == 0)
{
char tinybuf[2];
tinybuf[0] = DIRNAME_SEPARATOR;
tinybuf[1] = '\0';
1991-03-29 00:26:26 +08:00
/* If we have already tacked on a name(s) in this command, be sure they stay on the front as we tack on some more. */
if (prefix)
{
char *temp, c;
c = old[prefix];
old[prefix] = '\0';
temp = concat (old, tinybuf, name, NULL);
1991-03-29 00:26:26 +08:00
old[prefix] = c;
*which_path = concat (temp, "", &old[prefix], NULL);
1991-03-29 00:26:26 +08:00
prefix = strlen (temp);
free (temp);
}
else
{
*which_path = concat (name, (old[0] ? tinybuf : old), old, NULL);
1991-03-29 00:26:26 +08:00
prefix = strlen (name);
}
free (old);
old = *which_path;
}
}
skip_dup: ;
} while (*dirname != '\0');
}
static void
source_info (ignore, from_tty)
char *ignore;
int from_tty;
1991-03-29 00:26:26 +08:00
{
register struct symtab *s = current_source_symtab;
if (!s)
{
printf_filtered("No current source file.\n");
1991-03-29 00:26:26 +08:00
return;
}
printf_filtered ("Current source file is %s\n", s->filename);
1991-03-29 00:26:26 +08:00
if (s->dirname)
printf_filtered ("Compilation directory is %s\n", s->dirname);
1991-03-29 00:26:26 +08:00
if (s->fullname)
printf_filtered ("Located in %s\n", s->fullname);
1991-03-29 00:26:26 +08:00
if (s->nlines)
* Makefile.in (VERSION): Bump to 4.7.4. * Makefile.in (SFILES_MAINDIR): Add typeprint.c, c-typeprint.c, m2-typeprint.c, c-valprint.c cp-valprint.c m2-valprint.c. * Makefile.in (HFILES): Add valprint.h. * Makefile.in (OBS): Add typeprint.o, c-typeprint.o, m2-typeprint.o, c-valprint.o, cp-valprint.o m2-valprint.o. * typeprint.c, typeprint.h: New files for language independent type printing functions. * c-typeprint.c, m2-typeprint.c: New files for language dependent type printing functions and definitions. * valprint.h: New include file for language independent value printing definitions. * c-valprint.c, cp-valprint.c, m2-valprint.c: New files for language dependent value printing functions. * c-exp.y (production ptype): Add range_type variable and use new create_range_type function. * c-exp.y (tokentab2, tokentab3), c-lang.c (c_op_print_tab), infcmd.c (path_var_name), language.c (unk_op_print_tab), m2-lang.c (m2_op_print_tab): Change from ANSI-obsolescent "const static" to ANSI-conformant "static const". * c-exp.y (c_create_fundamental_type): Remove unused nbytes. * c-exp.y (c_language_defn, cplus_language_defn): Add c_print_type, and c_val_print. * c-lang.h (c_print_type, c_val_print): Add prototypes. * coffread.c (decode_type): Add range_type variable and call to new create_range_type function. * complaints.c (complain): Remove unused val variable. * complaints.c (_initialize_complaints): Make it void. * convex-tdep.c (value_of_trapped_internalvar): Add range_type variable and call new create_range_type function. * defs.h (enum val_prettyprint): Move enum from value.h to here so we can avoid having to include value.h just for prototypes that need the enum (thanks ANSI). * dwarfread.c (struct_type): Local anonymous_size variable is only used if !BITS_BIG_ENDIAN. * dwarfread.c (decode_subscript_data_item): Add rangetype variable and call new create_range_type function. * elfread.c (elf_symfile_read): Remove unused dbx and text_sect variables. * eval.c (evaluate_subexp): Remove unused local variable name and the statement with no side effects that initializes it. * expprint.c (print_subexp): Change local_printstr to LA_PRINT_STRING. * gdbtypes.c (create_range_type): New function that creates a range type using code fragments from object file readers as an example of what has to be initialized. * gdbtypes.c (create_array_type): Removed index_type, low_bound, and high_bound parameters, replaced with a single range_type parameter. Change function body to use passed in range_type rather than handcrafting one. * gdbtypes.h (create_range_type): Add prototype. * gdbtypes.h (create_array_type): Change prototype parameters. * infrun.c (normal_stop): Remove unused local variables tem and c. * infrun.c (hook_stop_stub): Return 0 rather than random value. * language.c (unk_lang_print_type, unk_lang_val_print): Add stub functions that call error if called. * language.c (unknown_language_defn, auto_language_defn, local_language_defn): Add initializers unk_lang_print_type and unk_lang_val_print. * language.h (struct language_defn): Reformat for larger comments, add la_print_type and la_val_print members. Add LA_PRINT_TYPE and LA_VAL_PRINT macros. Change local_printchar to LA_PRINT_CHAR and local_printstr to LA_PRINT_STRING. * m2-lang.c (m2_create_fundamental_type): Remove unused local variable nbytes. * m2-lang.c (m2_language_defn): Add initializers m2_print_type and m2_val_print. * m2-lang.h (m2_print_type, m2_val_print): Add prototypes. * main.c (execute_command): Remove unused local variable cmdlines. * main.c (echo_command), stabsread.c (read_type), printcmd.c (clear_displays), symmisc.c (block_depth), values.c (clear_value_history): Make testing of truth value of assignment result explicit. * mipsread.c (upgrade_type): Update FIXME to include future use of create_range_type. * printcmd.c (ptype_command, ptype_eval, whatis_command, whatis_exp, maintenance_print_type): Move prototypes and functions to new typeprint.c. * printcmd.c (_initialize_printcmd): Move add_com calls for ptype_command and whatis_command to new typeprint.c. * ser-bsd.c (serial_open): Remove unused variable sgttyb. * source.c (find_source_lines): Local variable c only used when LSEEK_NOT_LINEAR is defined. * stabsread.c (read_array_type): Use new create_range_type function. * stabsread.c (read_range_type): Add new index_type variable and call new create_range_type function rather than handcrafting range types. * symmisc.c (type_print_1): Change usages to LA_PRINT_TYPE. * symtab.c (typedef_print usages): Use c_typedef_print, renamed. * symtab.c (type_print_base usages): Use c_type_print_base. * symtab.c (type_print_varspec_prefix usages): Use c_type_print_varspec_prefix. * symtab.c (type_print_method_args usages): Use cp_type_print_method_args. * valprint.c: Completely ripped apart and the fragments used to create c-valprint.c, cp-valprint.c, m2-valprint.c, and valprint.h. Remaining stuff is language independent. * value.h (struct fn_field): Forward declare for prototypes. * value.h (type_print_1): Remove prototype. * value.h (enum val_prettyprint): Moved to defs.h. * value.h (typedef_print): Prototype renamed to c_typedef_print. * value.h (baseclass_offset): Add prototype. **** start-sanitize-chill **** * Makefile.in (SFILES_MAINDIR): Add ch-typeprint.c, ch-valprint.c. * Makefile.in (OBS): Add ch-typeprint.o, ch-valprint.o. * ch-typeprint.c: New file for language dependent type printing. * ch-valprint.c: New file for language dependent value printing. * ch-exp.y (parse_number): Remove prototype and stub function. * ch-exp.y (decode_integer_literal): Removed unused digits and temp variables. * ch-exp.y (convert_float): Completely ifdef out for now. * ch-exp.y (tokentab2, tokentab3, tokentab4, tokentab5), ch-lang.c (chill_op_print_tab): Change from ANSI-obsolescent "const static" to ANSI-conformant "static const". * ch-exp.y (yylex): Add unhandled storage class enumeration literals to switch statement for completeness. * ch-lang.c (chill_create_fundamental_types): Remove unused nbytes variable. Change dummy type to 2 bytes to match int. Handle FT_VOID types gratuituously added to chill DWARF by compiler. Change FT_CHAR case to generate an TYPE_CODE_CHAR type rather than a one byte TYPE_CODE_INT type. * ch-lang.c (chill_language_defn): Add chill_print_type and chill_val_print. * ch-lang.h (chill_print_type, chill_val_print): Add prototypes. **** end-sanitize-chill ****
1992-12-19 04:21:32 +08:00
printf_filtered ("Contains %d line%s.\n", s->nlines,
s->nlines == 1 ? "" : "s");
1991-03-29 00:26:26 +08:00
printf_filtered ("Source language is %s.\n", language_str (s->language));
printf_filtered ("Compiled with %s debugging format.\n", s->debugformat);
1991-03-29 00:26:26 +08:00
}
/* Open a file named STRING, searching path PATH (dir names sep by some char)
1991-03-29 00:26:26 +08:00
using mode MODE and protection bits PROT in the calls to open.
1991-03-29 00:26:26 +08:00
If TRY_CWD_FIRST, try to open ./STRING before searching PATH.
(ie pretend the first element of PATH is "."). This also indicates
that a slash in STRING disables searching of the path (this is
so that "exec-file ./foo" or "symbol-file ./foo" insures that you
get that particular version of foo or an error message).
1991-03-29 00:26:26 +08:00
If FILENAMED_OPENED is non-null, set it to a newly allocated string naming
the actual file opened (this string will always start with a "/". We
have to take special pains to avoid doubling the "/" between the directory
and the file, sigh! Emacs gets confuzzed by this when we print the
source file name!!!
If a file is found, return the descriptor.
Otherwise, return -1, with errno set for the last name we tried to open. */
/* >>>> This should only allow files of certain types,
>>>> eg executable, non-directory */
int
openp (path, try_cwd_first, string, mode, prot, filename_opened)
char *path;
int try_cwd_first;
char *string;
int mode;
int prot;
char **filename_opened;
{
register int fd;
register char *filename;
register char *p, *p1;
register int len;
int alloclen;
if (!path)
path = ".";
#ifdef WIN32
mode |= O_BINARY;
#endif
if (try_cwd_first || SLASH_P (string[0]))
1991-03-29 00:26:26 +08:00
{
int i;
1991-03-29 00:26:26 +08:00
filename = string;
fd = open (filename, mode, prot);
if (fd >= 0)
goto done;
for (i = 0; string[i]; i++)
if (SLASH_P (string[i]))
goto done;
1991-03-29 00:26:26 +08:00
}
/* ./foo => foo */
while (string[0] == '.' && SLASH_P (string[1]))
string += 2;
1991-03-29 00:26:26 +08:00
alloclen = strlen (path) + strlen (string) + 2;
filename = (char *) alloca (alloclen);
fd = -1;
for (p = path; p; p = p1 ? p1 + 1 : 0)
{
p1 = (char *) strchr (p, DIRNAME_SEPARATOR);
1991-03-29 00:26:26 +08:00
if (p1)
len = p1 - p;
else
len = strlen (p);
if (len == 4 && p[0] == '$' && p[1] == 'c'
&& p[2] == 'w' && p[3] == 'd') {
1991-03-29 00:26:26 +08:00
/* Name is $cwd -- insert current directory name instead. */
int newlen;
/* First, realloc the filename buffer if too short. */
len = strlen (current_directory);
newlen = len + strlen (string) + 2;
if (newlen > alloclen) {
alloclen = newlen;
filename = (char *) alloca (alloclen);
}
strcpy (filename, current_directory);
} else {
/* Normal file name in path -- just use it. */
strncpy (filename, p, len);
filename[len] = 0;
}
/* Remove trailing slashes */
while (len > 0 && SLASH_P (filename[len-1]))
filename[--len] = 0;
strcat (filename+len, SLASH_STRING);
1991-03-29 00:26:26 +08:00
strcat (filename, string);
fd = open (filename, mode);
1991-03-29 00:26:26 +08:00
if (fd >= 0) break;
}
done:
if (filename_opened)
{
if (fd < 0)
*filename_opened = (char *) 0;
else if (ROOTED_P (filename))
*filename_opened = savestring (filename, strlen (filename));
else
{
/* Beware the // my son, the Emacs barfs, the botch that catch... */
*filename_opened = concat (current_directory,
SLASH_CHAR
== current_directory[strlen(current_directory)-1]
? "": SLASH_STRING,
filename, NULL);
}
}
#ifdef MPW
/* This is a debugging hack that can go away when all combinations
of Mac and Unix names are handled reasonably. */
{
extern int debug_openp;
if (debug_openp)
{
printf("openp on %s, path %s mode %d prot %d\n returned %d",
string, path, mode, prot, fd);
if (*filename_opened)
printf(" (filename is %s)", *filename_opened);
printf("\n");
}
}
#endif /* MPW */
1991-03-29 00:26:26 +08:00
return fd;
}
/* Open a source file given a symtab S. Returns a file descriptor or
negative number for error. */
static int
1991-03-29 00:26:26 +08:00
open_source_file (s)
struct symtab *s;
{
char *path = source_path;
char *p;
int result;
char *fullname;
1991-03-29 00:26:26 +08:00
/* Quick way out if we already know its full name */
if (s->fullname)
{
result = open (s->fullname, OPEN_MODE);
1991-03-29 00:26:26 +08:00
if (result >= 0)
return result;
/* Didn't work -- free old one, try again. */
mfree (s->objfile->md, s->fullname);
1991-03-29 00:26:26 +08:00
s->fullname = NULL;
}
if (s->dirname != NULL)
{
/* Replace a path entry of $cdir with the compilation directory name */
#define cdir_len 5
/* We cast strstr's result in case an ANSIhole has made it const,
which produces a "required warning" when assigned to a nonconst. */
p = (char *)strstr (source_path, "$cdir");
if (p && (p == path || p[-1] == DIRNAME_SEPARATOR)
&& (p[cdir_len] == DIRNAME_SEPARATOR || p[cdir_len] == '\0'))
{
int len;
path = (char *)
alloca (strlen (source_path) + 1 + strlen (s->dirname) + 1);
len = p - source_path;
strncpy (path, source_path, len); /* Before $cdir */
strcpy (path + len, s->dirname); /* new stuff */
strcat (path + len, source_path + len + cdir_len); /* After $cdir */
}
1991-03-29 00:26:26 +08:00
}
result = openp (path, 0, s->filename, OPEN_MODE, 0, &s->fullname);
if (result < 0)
{
/* Didn't work. Try using just the basename. */
p = basename (s->filename);
if (p != s->filename)
result = openp (path, 0, p, OPEN_MODE, 0, &s->fullname);
}
#ifdef MPW
if (result < 0)
{
/* Didn't work. Try using just the MPW basename. */
p = (char *) mpw_basename (s->filename);
if (p != s->filename)
result = openp (path, 0, p, OPEN_MODE, 0, &s->fullname);
}
if (result < 0)
{
/* Didn't work. Try using the mixed Unix/MPW basename. */
p = (char *) mpw_mixed_basename (s->filename);
if (p != s->filename)
result = openp (path, 0, p, OPEN_MODE, 0, &s->fullname);
}
#endif /* MPW */
if (result >= 0)
{
fullname = s->fullname;
s->fullname = mstrsave (s->objfile->md, s->fullname);
free (fullname);
}
return result;
1991-03-29 00:26:26 +08:00
}
/* Return the path to the source file associated with symtab. Returns NULL
if no symtab. */
char *
symtab_to_filename (s)
struct symtab *s;
{
int fd;
if (!s)
return NULL;
/* If we've seen the file before, just return fullname. */
if (s->fullname)
return s->fullname;
/* Try opening the file to setup fullname */
fd = open_source_file (s);
if (fd < 0)
return s->filename; /* File not found. Just use short name */
/* Found the file. Cleanup and return the full name */
close (fd);
return s->fullname;
}
1991-03-29 00:26:26 +08:00
/* Create and initialize the table S->line_charpos that records
the positions of the lines in the source file, which is assumed
to be open on descriptor DESC.
All set S->nlines to the number of such lines. */
static void
find_source_lines (s, desc)
struct symtab *s;
int desc;
{
struct stat st;
register char *data, *p, *end;
int nlines = 0;
int lines_allocated = 1000;
int *line_charpos;
long mtime;
int size;
1991-03-29 00:26:26 +08:00
line_charpos = (int *) xmmalloc (s -> objfile -> md,
lines_allocated * sizeof (int));
1991-03-29 00:26:26 +08:00
if (fstat (desc, &st) < 0)
perror_with_name (s->filename);
if (s && s->objfile && s->objfile->obfd)
{
mtime = bfd_get_mtime(s->objfile->obfd);
if (mtime && mtime < st.st_mtime)
printf_filtered ("Source file is more recent than executable.\n");
}
else if (exec_bfd)
{
mtime = bfd_get_mtime(exec_bfd);
if (mtime && mtime < st.st_mtime)
printf_filtered ("Source file is more recent than executable.\n");
}
1991-03-29 00:26:26 +08:00
#ifdef LSEEK_NOT_LINEAR
{
char c;
/* Have to read it byte by byte to find out where the chars live */
line_charpos[0] = lseek (desc, 0, SEEK_CUR);
nlines = 1;
while (myread(desc, &c, 1)>0)
{
if (c == '\n')
{
if (nlines == lines_allocated)
{
lines_allocated *= 2;
line_charpos =
(int *) xmrealloc (s -> objfile -> md, (char *) line_charpos,
sizeof (int) * lines_allocated);
}
line_charpos[nlines++] = lseek (desc, 0, SEEK_CUR);
}
}
}
#else /* lseek linear. */
{
struct cleanup *old_cleanups;
/* st_size might be a large type, but we only support source files whose
size fits in an int. */
size = (int) st.st_size;
/* Use malloc, not alloca, because this may be pretty large, and we may
run into various kinds of limits on stack size. */
data = (char *) xmalloc (size);
old_cleanups = make_cleanup (free, data);
/* Reassign `size' to result of read for systems where \r\n -> \n. */
size = myread (desc, data, size);
if (size < 0)
perror_with_name (s->filename);
end = data + size;
p = data;
line_charpos[0] = 0;
nlines = 1;
while (p != end)
{
if (*p++ == '\n'
/* A newline at the end does not start a new line. */
&& p != end)
{
if (nlines == lines_allocated)
{
lines_allocated *= 2;
line_charpos =
(int *) xmrealloc (s -> objfile -> md, (char *) line_charpos,
sizeof (int) * lines_allocated);
}
line_charpos[nlines++] = p - data;
}
}
do_cleanups (old_cleanups);
}
#endif /* lseek linear. */
1991-03-29 00:26:26 +08:00
s->nlines = nlines;
s->line_charpos =
(int *) xmrealloc (s -> objfile -> md, (char *) line_charpos,
nlines * sizeof (int));
1991-03-29 00:26:26 +08:00
}
/* Return the character position of a line LINE in symtab S.
Return 0 if anything is invalid. */
#if 0 /* Currently unused */
1991-03-29 00:26:26 +08:00
int
source_line_charpos (s, line)
struct symtab *s;
int line;
{
if (!s) return 0;
if (!s->line_charpos || line <= 0) return 0;
if (line > s->nlines)
line = s->nlines;
return s->line_charpos[line - 1];
}
/* Return the line number of character position POS in symtab S. */
int
source_charpos_line (s, chr)
register struct symtab *s;
register int chr;
{
register int line = 0;
register int *lnp;
if (s == 0 || s->line_charpos == 0) return 0;
lnp = s->line_charpos;
/* Files are usually short, so sequential search is Ok */
while (line < s->nlines && *lnp <= chr)
{
line++;
lnp++;
}
if (line >= s->nlines)
line = s->nlines;
return line;
}
#endif /* 0 */
1991-03-29 00:26:26 +08:00
/* Get full pathname and line number positions for a symtab.
Return nonzero if line numbers may have changed.
Set *FULLNAME to actual name of the file as found by `openp',
or to 0 if the file is not found. */
static int
1991-03-29 00:26:26 +08:00
get_filename_and_charpos (s, fullname)
struct symtab *s;
char **fullname;
{
register int desc, linenums_changed = 0;
desc = open_source_file (s);
if (desc < 0)
{
if (fullname)
*fullname = NULL;
return 0;
}
if (fullname)
*fullname = s->fullname;
if (s->line_charpos == 0) linenums_changed = 1;
if (linenums_changed) find_source_lines (s, desc);
close (desc);
return linenums_changed;
}
/* Print text describing the full name of the source file S
and the line number LINE and its corresponding character position.
The text starts with two Ctrl-z so that the Emacs-GDB interface
can easily find it.
MID_STATEMENT is nonzero if the PC is not at the beginning of that line.
Return 1 if successful, 0 if could not find the file. */
int
identify_source_line (s, line, mid_statement, pc)
1991-03-29 00:26:26 +08:00
struct symtab *s;
int line;
int mid_statement;
CORE_ADDR pc;
1991-03-29 00:26:26 +08:00
{
if (s->line_charpos == 0)
get_filename_and_charpos (s, (char **)NULL);
if (s->fullname == 0)
return 0;
if (line > s->nlines)
/* Don't index off the end of the line_charpos array. */
return 0;
gcc -Wall lint: * breakpoint.c (watchpoint_check): Remove unused variable b. * stack.c (print_frame_info): Move sp and buf inside #if. * eval.c (evaluate_subexp): Remove unused variables pp, mangle_ptr, ptr, and mangle_tstr. * valarith.c (value_x_binop): Remove unused variables mangle_tstr and mangle_ptr. * symtab.c (lookup_symtab): Put variable copy inside #if. (decode_line_1): Put variable q1 inside #if 0. * target.h: Declare target_link. * infrun.c (wait_for_inferior): Remove unused variables signame. * remote.c (remote_resume): Remove unused variable name. * c-exp.y (parse_number): Parenthesize operand of shift. * dbxread.c (record_minimal_symbol): Parenthesize operand of && (this is a semantic change, the warning seems to have detected a bug). * dbxread.c (end_psymtab): Move variable p1 inside #if. * coffread.c: Move variable temptype inside #if. * ch-typeprint.c (chill_type_print_base): Remove unused variable name. * ch-valprint.c: #include typeprint.h and ch-lang.h. (chill_val_print): Remove unused variable in_range. (chill_val_print): Remove statement "length > TYPE_LENGTH (type);". (chill_val_print): Add default case for switch. * stabsread.h: Declare stabsect_build_psymtabs. * os9kread.c (read_minimal_symbols): Make this return void. (os9k_symfile_read): Remove unused variables stb_exist and val. (os9k_symfile_init): Remove unused variable val. (fill_sym): Remove unused variable id. (read_os9k_psymtab): Put variable back_to inside #if 0. Remove unused variable nsl. Remove unused variable symfile_bfd. #if 0 unused variables lbrac_unmatched_complaint and lbrac_mismatch_complaint. Remove declaration for non-existent function os9k_next_symbol_text. * annotate.c, annotate.h: New files, containing a function for each annotation which outputs it. * Move breakpoints_changed from breakpoint.c to annotate.c. * breakpoint.c, blockframe.c, infrun.c, cp-valprint.c, main.c, printcmd.c, source.c, stack.c, utils.c, valprint.c: Use annotate.c functions to output annotations. * Makefile.in (OBS): Add annotate.o.
1994-05-14 02:18:57 +08:00
annotate_source (s->fullname, line, s->line_charpos[line - 1],
mid_statement, pc);
1991-03-29 00:26:26 +08:00
current_source_line = line;
first_line_listed = line;
last_line_listed = line;
current_source_symtab = s;
return 1;
}
/* Print source lines from the file of symtab S,
starting with line number LINE and stopping before line number STOPLINE. */
void
print_source_lines (s, line, stopline, noerror)
struct symtab *s;
int line, stopline;
int noerror;
{
register int c;
register int desc;
register FILE *stream;
int nlines = stopline - line;
/* Regardless of whether we can open the file, set current_source_symtab. */
current_source_symtab = s;
current_source_line = line;
first_line_listed = line;
desc = open_source_file (s);
if (desc < 0)
{
if (! noerror) {
char *name = alloca (strlen (s->filename) + 100);
sprintf (name, "%s:%d", s->filename, line);
print_sys_errmsg (name, errno);
}
return;
}
if (s->line_charpos == 0)
find_source_lines (s, desc);
if (line < 1 || line > s->nlines)
{
close (desc);
error ("Line number %d out of range; %s has %d lines.",
line, s->filename, s->nlines);
}
if (lseek (desc, s->line_charpos[line - 1], 0) < 0)
{
close (desc);
perror_with_name (s->filename);
}
stream = fdopen (desc, FDOPEN_MODE);
1991-03-29 00:26:26 +08:00
clearerr (stream);
while (nlines-- > 0)
{
c = fgetc (stream);
if (c == EOF) break;
last_line_listed = current_source_line;
printf_filtered ("%d\t", current_source_line++);
do
{
if (c < 040 && c != '\t' && c != '\n' && c != '\r')
1991-03-29 00:26:26 +08:00
printf_filtered ("^%c", c + 0100);
else if (c == 0177)
printf_filtered ("^?");
#ifdef CRLF_SOURCE_FILES
else if (c == '\r')
{
/* Just skip \r characters. */
}
#endif
1991-03-29 00:26:26 +08:00
else
printf_filtered ("%c", c);
} while (c != '\n' && (c = fgetc (stream)) >= 0);
}
fclose (stream);
}
/* Print a list of files and line numbers which a user may choose from
in order to list a function which was specified ambiguously (as with
`list classname::overloadedfuncname', for example). The vector in
SALS provides the filenames and line numbers. */
1991-03-29 00:26:26 +08:00
static void
ambiguous_line_spec (sals)
struct symtabs_and_lines *sals;
{
int i;
for (i = 0; i < sals->nelts; ++i)
printf_filtered("file: \"%s\", line number: %d\n",
sals->sals[i].symtab->filename, sals->sals[i].line);
1991-03-29 00:26:26 +08:00
}
static void
list_command (arg, from_tty)
char *arg;
int from_tty;
{
struct symtabs_and_lines sals, sals_end;
struct symtab_and_line sal, sal_end;
struct symbol *sym;
char *arg1;
int no_end = 1;
int dummy_end = 0;
int dummy_beg = 0;
int linenum_beg = 0;
char *p;
if (!have_full_symbols () && !have_partial_symbols())
error ("No symbol table is loaded. Use the \"file\" command.");
1991-03-29 00:26:26 +08:00
/* Pull in a current source symtab if necessary */
if (current_source_symtab == 0 &&
(arg == 0 || arg[0] == '+' || arg[0] == '-'))
select_source_symtab (0);
/* "l" or "l +" lists next ten lines. */
* 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 14:34:57 +08:00
if (arg == 0 || STREQ (arg, "+"))
1991-03-29 00:26:26 +08:00
{
if (current_source_symtab == 0)
error ("No default source file yet. Do \"help list\".");
print_source_lines (current_source_symtab, current_source_line,
current_source_line + lines_to_list, 0);
1991-03-29 00:26:26 +08:00
return;
}
/* "l -" lists previous ten lines, the ones before the ten just listed. */
* 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 14:34:57 +08:00
if (STREQ (arg, "-"))
1991-03-29 00:26:26 +08:00
{
if (current_source_symtab == 0)
error ("No default source file yet. Do \"help list\".");
print_source_lines (current_source_symtab,
max (first_line_listed - lines_to_list, 1),
1991-03-29 00:26:26 +08:00
first_line_listed, 0);
return;
}
/* Now if there is only one argument, decode it in SAL
and set NO_END.
If there are two arguments, decode them in SAL and SAL_END
and clear NO_END; however, if one of the arguments is blank,
set DUMMY_BEG or DUMMY_END to record that fact. */
arg1 = arg;
if (*arg1 == ',')
dummy_beg = 1;
else
{
sals = decode_line_1 (&arg1, 0, 0, 0, 0);
1991-03-29 00:26:26 +08:00
if (! sals.nelts) return; /* C++ */
if (sals.nelts > 1)
{
ambiguous_line_spec (&sals);
free (sals.sals);
return;
}
sal = sals.sals[0];
free (sals.sals);
}
/* Record whether the BEG arg is all digits. */
for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
linenum_beg = (p == arg1);
while (*arg1 == ' ' || *arg1 == '\t')
arg1++;
if (*arg1 == ',')
{
no_end = 0;
arg1++;
while (*arg1 == ' ' || *arg1 == '\t')
arg1++;
if (*arg1 == 0)
dummy_end = 1;
else
{
if (dummy_beg)
sals_end = decode_line_1 (&arg1, 0, 0, 0, 0);
1991-03-29 00:26:26 +08:00
else
sals_end = decode_line_1 (&arg1, 0, sal.symtab, sal.line, 0);
1991-03-29 00:26:26 +08:00
if (sals_end.nelts == 0)
return;
if (sals_end.nelts > 1)
{
ambiguous_line_spec (&sals_end);
free (sals_end.sals);
return;
}
sal_end = sals_end.sals[0];
free (sals_end.sals);
}
}
if (*arg1)
error ("Junk at end of line specification.");
if (!no_end && !dummy_beg && !dummy_end
&& sal.symtab != sal_end.symtab)
error ("Specified start and end are in different files.");
if (dummy_beg && dummy_end)
error ("Two empty args do not say what lines to list.");
/* if line was specified by address,
first print exactly which line, and which file.
In this case, sal.symtab == 0 means address is outside
of all known source files, not that user failed to give a filename. */
if (*arg == '*')
{
if (sal.symtab == 0)
/* FIXME-32x64--assumes sal.pc fits in long. */
error ("No source file for address %s.",
local_hex_string((unsigned long) sal.pc));
1991-03-29 00:26:26 +08:00
sym = find_pc_function (sal.pc);
if (sym)
{
gcc -Wall lint: * breakpoint.c (watchpoint_check): Remove unused variable b. * stack.c (print_frame_info): Move sp and buf inside #if. * eval.c (evaluate_subexp): Remove unused variables pp, mangle_ptr, ptr, and mangle_tstr. * valarith.c (value_x_binop): Remove unused variables mangle_tstr and mangle_ptr. * symtab.c (lookup_symtab): Put variable copy inside #if. (decode_line_1): Put variable q1 inside #if 0. * target.h: Declare target_link. * infrun.c (wait_for_inferior): Remove unused variables signame. * remote.c (remote_resume): Remove unused variable name. * c-exp.y (parse_number): Parenthesize operand of shift. * dbxread.c (record_minimal_symbol): Parenthesize operand of && (this is a semantic change, the warning seems to have detected a bug). * dbxread.c (end_psymtab): Move variable p1 inside #if. * coffread.c: Move variable temptype inside #if. * ch-typeprint.c (chill_type_print_base): Remove unused variable name. * ch-valprint.c: #include typeprint.h and ch-lang.h. (chill_val_print): Remove unused variable in_range. (chill_val_print): Remove statement "length > TYPE_LENGTH (type);". (chill_val_print): Add default case for switch. * stabsread.h: Declare stabsect_build_psymtabs. * os9kread.c (read_minimal_symbols): Make this return void. (os9k_symfile_read): Remove unused variables stb_exist and val. (os9k_symfile_init): Remove unused variable val. (fill_sym): Remove unused variable id. (read_os9k_psymtab): Put variable back_to inside #if 0. Remove unused variable nsl. Remove unused variable symfile_bfd. #if 0 unused variables lbrac_unmatched_complaint and lbrac_mismatch_complaint. Remove declaration for non-existent function os9k_next_symbol_text. * annotate.c, annotate.h: New files, containing a function for each annotation which outputs it. * Move breakpoints_changed from breakpoint.c to annotate.c. * breakpoint.c, blockframe.c, infrun.c, cp-valprint.c, main.c, printcmd.c, source.c, stack.c, utils.c, valprint.c: Use annotate.c functions to output annotations. * Makefile.in (OBS): Add annotate.o.
1994-05-14 02:18:57 +08:00
print_address_numeric (sal.pc, 1, gdb_stdout);
printf_filtered (" is in ");
fputs_filtered (SYMBOL_SOURCE_NAME (sym), gdb_stdout);
printf_filtered (" (%s:%d).\n", sal.symtab->filename, sal.line);
}
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else
{
gcc -Wall lint: * breakpoint.c (watchpoint_check): Remove unused variable b. * stack.c (print_frame_info): Move sp and buf inside #if. * eval.c (evaluate_subexp): Remove unused variables pp, mangle_ptr, ptr, and mangle_tstr. * valarith.c (value_x_binop): Remove unused variables mangle_tstr and mangle_ptr. * symtab.c (lookup_symtab): Put variable copy inside #if. (decode_line_1): Put variable q1 inside #if 0. * target.h: Declare target_link. * infrun.c (wait_for_inferior): Remove unused variables signame. * remote.c (remote_resume): Remove unused variable name. * c-exp.y (parse_number): Parenthesize operand of shift. * dbxread.c (record_minimal_symbol): Parenthesize operand of && (this is a semantic change, the warning seems to have detected a bug). * dbxread.c (end_psymtab): Move variable p1 inside #if. * coffread.c: Move variable temptype inside #if. * ch-typeprint.c (chill_type_print_base): Remove unused variable name. * ch-valprint.c: #include typeprint.h and ch-lang.h. (chill_val_print): Remove unused variable in_range. (chill_val_print): Remove statement "length > TYPE_LENGTH (type);". (chill_val_print): Add default case for switch. * stabsread.h: Declare stabsect_build_psymtabs. * os9kread.c (read_minimal_symbols): Make this return void. (os9k_symfile_read): Remove unused variables stb_exist and val. (os9k_symfile_init): Remove unused variable val. (fill_sym): Remove unused variable id. (read_os9k_psymtab): Put variable back_to inside #if 0. Remove unused variable nsl. Remove unused variable symfile_bfd. #if 0 unused variables lbrac_unmatched_complaint and lbrac_mismatch_complaint. Remove declaration for non-existent function os9k_next_symbol_text. * annotate.c, annotate.h: New files, containing a function for each annotation which outputs it. * Move breakpoints_changed from breakpoint.c to annotate.c. * breakpoint.c, blockframe.c, infrun.c, cp-valprint.c, main.c, printcmd.c, source.c, stack.c, utils.c, valprint.c: Use annotate.c functions to output annotations. * Makefile.in (OBS): Add annotate.o.
1994-05-14 02:18:57 +08:00
print_address_numeric (sal.pc, 1, gdb_stdout);
printf_filtered (" is at %s:%d.\n",
sal.symtab->filename, sal.line);
}
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}
/* If line was not specified by just a line number,
and it does not imply a symtab, it must be an undebuggable symbol
which means no source code. */
if (! linenum_beg && sal.symtab == 0)
error ("No line number known for %s.", arg);
/* If this command is repeated with RET,
turn it into the no-arg variant. */
if (from_tty)
*arg = 0;
if (dummy_beg && sal_end.symtab == 0)
error ("No default source file yet. Do \"help list\".");
if (dummy_beg)
print_source_lines (sal_end.symtab,
max (sal_end.line - (lines_to_list - 1), 1),
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sal_end.line + 1, 0);
else if (sal.symtab == 0)
error ("No default source file yet. Do \"help list\".");
else if (no_end)
print_source_lines (sal.symtab,
max (sal.line - (lines_to_list / 2), 1),
sal.line + (lines_to_list / 2), 0);
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else
print_source_lines (sal.symtab, sal.line,
(dummy_end
? sal.line + lines_to_list
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: sal_end.line + 1),
0);
}
/* Print info on range of pc's in a specified line. */
static void
line_info (arg, from_tty)
char *arg;
int from_tty;
{
struct symtabs_and_lines sals;
struct symtab_and_line sal;
CORE_ADDR start_pc, end_pc;
int i;
INIT_SAL (&sal); /* initialize to zeroes */
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if (arg == 0)
{
sal.symtab = current_source_symtab;
sal.line = last_line_listed;
sals.nelts = 1;
sals.sals = (struct symtab_and_line *)
xmalloc (sizeof (struct symtab_and_line));
sals.sals[0] = sal;
}
else
{
sals = decode_line_spec_1 (arg, 0);
dont_repeat ();
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}
/* C++ More than one line may have been specified, as when the user
specifies an overloaded function name. Print info on them all. */
for (i = 0; i < sals.nelts; i++)
{
sal = sals.sals[i];
if (sal.symtab == 0)
{
printf_filtered ("No line number information available");
if (sal.pc != 0)
{
/* This is useful for "info line *0x7f34". If we can't tell the
user about a source line, at least let them have the symbolic
address. */
printf_filtered (" for address ");
wrap_here (" ");
print_address (sal.pc, gdb_stdout);
}
else
printf_filtered (".");
printf_filtered ("\n");
}
else if (sal.line > 0
&& find_line_pc_range (sal, &start_pc, &end_pc))
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{
if (start_pc == end_pc)
{
printf_filtered ("Line %d of \"%s\"",
sal.line, sal.symtab->filename);
wrap_here (" ");
printf_filtered (" is at address ");
print_address (start_pc, gdb_stdout);
wrap_here (" ");
printf_filtered (" but contains no code.\n");
}
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else
{
printf_filtered ("Line %d of \"%s\"",
sal.line, sal.symtab->filename);
wrap_here (" ");
printf_filtered (" starts at address ");
print_address (start_pc, gdb_stdout);
wrap_here (" ");
printf_filtered (" and ends at ");
print_address (end_pc, gdb_stdout);
printf_filtered (".\n");
}
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/* x/i should display this line's code. */
set_next_address (start_pc);
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/* Repeating "info line" should do the following line. */
last_line_listed = sal.line + 1;
/* If this is the only line, show the source code. If it could
not find the file, don't do anything special. */
gcc -Wall lint: * breakpoint.c (watchpoint_check): Remove unused variable b. * stack.c (print_frame_info): Move sp and buf inside #if. * eval.c (evaluate_subexp): Remove unused variables pp, mangle_ptr, ptr, and mangle_tstr. * valarith.c (value_x_binop): Remove unused variables mangle_tstr and mangle_ptr. * symtab.c (lookup_symtab): Put variable copy inside #if. (decode_line_1): Put variable q1 inside #if 0. * target.h: Declare target_link. * infrun.c (wait_for_inferior): Remove unused variables signame. * remote.c (remote_resume): Remove unused variable name. * c-exp.y (parse_number): Parenthesize operand of shift. * dbxread.c (record_minimal_symbol): Parenthesize operand of && (this is a semantic change, the warning seems to have detected a bug). * dbxread.c (end_psymtab): Move variable p1 inside #if. * coffread.c: Move variable temptype inside #if. * ch-typeprint.c (chill_type_print_base): Remove unused variable name. * ch-valprint.c: #include typeprint.h and ch-lang.h. (chill_val_print): Remove unused variable in_range. (chill_val_print): Remove statement "length > TYPE_LENGTH (type);". (chill_val_print): Add default case for switch. * stabsread.h: Declare stabsect_build_psymtabs. * os9kread.c (read_minimal_symbols): Make this return void. (os9k_symfile_read): Remove unused variables stb_exist and val. (os9k_symfile_init): Remove unused variable val. (fill_sym): Remove unused variable id. (read_os9k_psymtab): Put variable back_to inside #if 0. Remove unused variable nsl. Remove unused variable symfile_bfd. #if 0 unused variables lbrac_unmatched_complaint and lbrac_mismatch_complaint. Remove declaration for non-existent function os9k_next_symbol_text. * annotate.c, annotate.h: New files, containing a function for each annotation which outputs it. * Move breakpoints_changed from breakpoint.c to annotate.c. * breakpoint.c, blockframe.c, infrun.c, cp-valprint.c, main.c, printcmd.c, source.c, stack.c, utils.c, valprint.c: Use annotate.c functions to output annotations. * Makefile.in (OBS): Add annotate.o.
1994-05-14 02:18:57 +08:00
if (annotation_level && sals.nelts == 1)
identify_source_line (sal.symtab, sal.line, 0, start_pc);
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}
else
/* Is there any case in which we get here, and have an address
which the user would want to see? If we have debugging symbols
and no line numbers? */
printf_filtered ("Line number %d is out of range for \"%s\".\n",
sal.line, sal.symtab->filename);
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}
free (sals.sals);
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}
/* Commands to search the source file for a regexp. */
/* ARGSUSED */
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static void
forward_search_command (regex, from_tty)
char *regex;
int from_tty;
{
register int c;
register int desc;
register FILE *stream;
int line = last_line_listed + 1;
char *msg;
msg = (char *) re_comp (regex);
if (msg)
error (msg);
if (current_source_symtab == 0)
select_source_symtab (0);
/* Search from last_line_listed+1 in current_source_symtab */
desc = open_source_file (current_source_symtab);
if (desc < 0)
perror_with_name (current_source_symtab->filename);
if (current_source_symtab->line_charpos == 0)
find_source_lines (current_source_symtab, desc);
if (line < 1 || line > current_source_symtab->nlines)
{
close (desc);
error ("Expression not found");
}
if (lseek (desc, current_source_symtab->line_charpos[line - 1], 0) < 0)
{
close (desc);
perror_with_name (current_source_symtab->filename);
}
stream = fdopen (desc, FDOPEN_MODE);
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clearerr (stream);
while (1) {
static char *buf = NULL;
register char *p;
int cursize, newsize;
cursize = 256;
buf = xmalloc (cursize);
p = buf;
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c = getc (stream);
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if (c == EOF)
break;
do {
*p++ = c;
if (p - buf == cursize)
{
newsize = cursize + cursize / 2;
buf = xrealloc (buf, newsize);
p = buf + cursize;
cursize = newsize;
}
} while (c != '\n' && (c = getc (stream)) >= 0);
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/* we now have a source line in buf, null terminate and match */
*p = 0;
if (re_exec (buf) > 0)
{
/* Match! */
fclose (stream);
print_source_lines (current_source_symtab, line, line+1, 0);
set_internalvar (lookup_internalvar ("_"),
value_from_longest (builtin_type_int,
(LONGEST) line));
current_source_line = max (line - lines_to_list / 2, 1);
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return;
}
line++;
}
printf_filtered ("Expression not found\n");
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fclose (stream);
}
/* ARGSUSED */
1991-03-29 00:26:26 +08:00
static void
reverse_search_command (regex, from_tty)
char *regex;
int from_tty;
{
register int c;
register int desc;
register FILE *stream;
int line = last_line_listed - 1;
char *msg;
msg = (char *) re_comp (regex);
if (msg)
error (msg);
if (current_source_symtab == 0)
select_source_symtab (0);
/* Search from last_line_listed-1 in current_source_symtab */
desc = open_source_file (current_source_symtab);
if (desc < 0)
perror_with_name (current_source_symtab->filename);
if (current_source_symtab->line_charpos == 0)
find_source_lines (current_source_symtab, desc);
if (line < 1 || line > current_source_symtab->nlines)
{
close (desc);
error ("Expression not found");
}
if (lseek (desc, current_source_symtab->line_charpos[line - 1], 0) < 0)
{
close (desc);
perror_with_name (current_source_symtab->filename);
}
stream = fdopen (desc, FDOPEN_MODE);
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clearerr (stream);
while (line > 1)
{
/* FIXME!!! We walk right off the end of buf if we get a long line!!! */
1991-03-29 00:26:26 +08:00
char buf[4096]; /* Should be reasonable??? */
register char *p = buf;
c = getc (stream);
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if (c == EOF)
break;
do {
*p++ = c;
} while (c != '\n' && (c = getc (stream)) >= 0);
1991-03-29 00:26:26 +08:00
/* We now have a source line in buf; null terminate and match. */
*p = 0;
if (re_exec (buf) > 0)
{
/* Match! */
fclose (stream);
print_source_lines (current_source_symtab,
line, line+1, 0);
set_internalvar (lookup_internalvar ("_"),
value_from_longest (builtin_type_int,
(LONGEST) line));
current_source_line = max (line - lines_to_list / 2, 1);
1991-03-29 00:26:26 +08:00
return;
}
line--;
if (fseek (stream, current_source_symtab->line_charpos[line - 1], 0) < 0)
{
fclose (stream);
perror_with_name (current_source_symtab->filename);
}
}
printf_filtered ("Expression not found\n");
1991-03-29 00:26:26 +08:00
fclose (stream);
return;
}
void
_initialize_source ()
{
struct cmd_list_element *c;
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current_source_symtab = 0;
init_source_path ();
/* The intention is to use POSIX Basic Regular Expressions.
Always use the GNU regex routine for consistency across all hosts.
Our current GNU regex.c does not have all the POSIX features, so this is
just an approximation. */
re_set_syntax (RE_SYNTAX_GREP);
c = add_cmd ("directory", class_files, directory_command,
1991-03-29 00:26:26 +08:00
"Add directory DIR to beginning of search path for source files.\n\
Forget cached info on source file locations and line positions.\n\
DIR can also be $cwd for the current working directory, or $cdir for the\n\
directory in which the source file was compiled into object code.\n\
With no argument, reset the search path to $cdir:$cwd, the default.",
&cmdlist);
c->completer = filename_completer;
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add_cmd ("directories", no_class, show_directories,
"Current search path for finding source files.\n\
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$cwd in the path means the current working directory.\n\
$cdir in the path means the compilation directory of the source file.",
&showlist);
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add_info ("source", source_info,
"Information about the current source file.");
add_info ("line", line_info,
concat ("Core addresses of the code for a source line.\n\
1991-03-29 00:26:26 +08:00
Line can be specified as\n\
LINENUM, to list around that line in current file,\n\
FILE:LINENUM, to list around that line in that file,\n\
FUNCTION, to list around beginning of that function,\n\
FILE:FUNCTION, to distinguish among like-named static functions.\n\
", "\
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Default is to describe the last source line that was listed.\n\n\
This sets the default address for \"x\" to the line's first instruction\n\
so that \"x/i\" suffices to start examining the machine code.\n\
The address is also stored as the value of \"$_\".", NULL));
1991-03-29 00:26:26 +08:00
add_com ("forward-search", class_files, forward_search_command,
"Search for regular expression (see regex(3)) from last line listed.\n\
The matching line number is also stored as the value of \"$_\".");
1991-03-29 00:26:26 +08:00
add_com_alias ("search", "forward-search", class_files, 0);
add_com ("reverse-search", class_files, reverse_search_command,
"Search backward for regular expression (see regex(3)) from last line listed.\n\
The matching line number is also stored as the value of \"$_\".");
1991-03-29 00:26:26 +08:00
add_com ("list", class_files, list_command,
concat ("List specified function or line.\n\
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With no argument, lists ten more lines after or around previous listing.\n\
\"list -\" lists the ten lines before a previous ten-line listing.\n\
One argument specifies a line, and ten lines are listed around that line.\n\
Two arguments with comma between specify starting and ending lines to list.\n\
", "\
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Lines can be specified in these ways:\n\
LINENUM, to list around that line in current file,\n\
FILE:LINENUM, to list around that line in that file,\n\
FUNCTION, to list around beginning of that function,\n\
FILE:FUNCTION, to distinguish among like-named static functions.\n\
*ADDRESS, to list around the line containing that address.\n\
With two args if one is empty it stands for ten lines away from the other arg.", NULL));
add_com_alias ("l", "list", class_files, 1);
1991-03-29 00:26:26 +08:00
add_show_from_set
(add_set_cmd ("listsize", class_support, var_uinteger,
(char *)&lines_to_list,
"Set number of source lines gdb will list by default.",
&setlist),
&showlist);
}