From 9f59bfcfaeeef0f127a7275f4826d23bc66b03e9 Mon Sep 17 00:00:00 2001 From: Dave Beazley Date: Mon, 12 Mar 2001 17:59:41 +0000 Subject: [PATCH] *** empty log message *** git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@1046 626c5289-ae23-0410-ae9c-e8d60b6d4f22 --- SWIG/Tools/WAD/COPYING | 340 ++++++++++++++++++++++ SWIG/Tools/WAD/HACK | 78 +++++ SWIG/Tools/WAD/Include/wad.h | 27 +- SWIG/Tools/WAD/Python/python.c | 17 +- SWIG/Tools/WAD/Python/type.c | 17 +- SWIG/Tools/WAD/Python/wadpyinit.cxx | 17 +- SWIG/Tools/WAD/README | 115 +++++--- SWIG/Tools/WAD/Wad/Makefile | 14 +- SWIG/Tools/WAD/Wad/default.c | 91 +++--- SWIG/Tools/WAD/Wad/elf.c | 30 +- SWIG/Tools/WAD/Wad/init.c | 17 +- SWIG/Tools/WAD/Wad/io.c | 83 +++++- SWIG/Tools/WAD/Wad/memory.c | 55 ++-- SWIG/Tools/WAD/Wad/object.c | 29 +- SWIG/Tools/WAD/Wad/plat/segment_linux.c | 74 ----- SWIG/Tools/WAD/Wad/plat/segment_solaris.c | 45 --- SWIG/Tools/WAD/Wad/return.c | 19 +- SWIG/Tools/WAD/Wad/segment.c | 118 +++++++- SWIG/Tools/WAD/Wad/signal.c | 43 ++- SWIG/Tools/WAD/Wad/stab.c | 97 +++--- SWIG/Tools/WAD/Wad/stack.c | 21 +- SWIG/Tools/WAD/Wad/string.c | 39 ++- SWIG/Tools/WAD/Wad/vars.c | 69 +++-- 23 files changed, 1101 insertions(+), 354 deletions(-) create mode 100644 SWIG/Tools/WAD/COPYING create mode 100644 SWIG/Tools/WAD/HACK delete mode 100644 SWIG/Tools/WAD/Wad/plat/segment_linux.c delete mode 100644 SWIG/Tools/WAD/Wad/plat/segment_solaris.c diff --git a/SWIG/Tools/WAD/COPYING b/SWIG/Tools/WAD/COPYING new file mode 100644 index 000000000..60549be51 --- /dev/null +++ b/SWIG/Tools/WAD/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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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 + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19yy name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/SWIG/Tools/WAD/HACK b/SWIG/Tools/WAD/HACK new file mode 100644 index 000000000..c99e181d6 --- /dev/null +++ b/SWIG/Tools/WAD/HACK @@ -0,0 +1,78 @@ +The WAD Developers Guide + +David Beazley (beazley@cs.uchicago.edu) + +$Header$ + +1. Introduction + +This short document is intended for anyone who feels inclined to work +on WAD and make improvements. It is by no means complete. However, +it contains random commentary on the current implementation. + +2. A brief word on the execution environment + +Because WAD is embedded in the same application it is intended to +debug, it must take an extremely conservative approach to its own +execution environment. Specifically, it can not rely upon the correct +operation of C library--especially with respect to memory management +and other basic operations. Because of this, the implementation of +WAD makes every effort to be as self-contained as possible--thus +minimizing its exposure to corrupted libraries in the faulting +application. Closely related to this, WAD does not rely on any +third-party libraries (e.g., libbfd) since it is almost impossible to +fully verify the way in which such libraries might use other programming +libraries. + +With that said, you might keep the following rules in mind: + + rule 1: Trust nothing--it might be broken. + rule 2: When in doubt, see rule 1. + +(Of course, we can probably get away with assuming that the OS isn't +hosed). + +3. Memory management + +There are two problems here: first, the dynamic memory +allocator may be corrupted or broken (e.g., as might occur when +you double-free memory or free memory not allocated by malloc). +Second, the WAD signal handler prefers to execute own on its own +signal handling stack. This stack is of limited size so it is not +a reliable place to put large amounts of data. + +Small buffers and scratch areas are managed through the use of static +variables allocated in the WAD data-segment. + +For dynamic memory management, WAD provides its own memory allocator +in the function wad_malloc(). This function allocates memory by using +mmap() to grab anonymous memory regions (mapped to /dev/zero). This +memory is currently allocated in chunks of 64Kbytes as needed. + +To simplify the implementation and prevent potential memory problems +in WAD itself, WAD never releases the memory that it allocates. There +is no wad_free() operation nor is there any way to release all of the +memory previously allocated. + +Although memory is never released, WAD tries to intern commonly used +strings. An internal string hash is built as WAD runs and in most +cases, each string is mapped to a single instance of the string in +this hash table. The function wad_string_lookup(char *s) is used to +return a pointer to the string s in the hash table. If no entry +exists, it is created and a pointer is returned. + +4. I/O + +It is probably a bad idea to use buffered I/O with WAD. This may +result in implicit calls to malloc() and related functions. + + + + + + + + + + + diff --git a/SWIG/Tools/WAD/Include/wad.h b/SWIG/Tools/WAD/Include/wad.h index a1b466335..0c457c440 100644 --- a/SWIG/Tools/WAD/Include/wad.h +++ b/SWIG/Tools/WAD/Include/wad.h @@ -5,8 +5,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include @@ -49,18 +62,24 @@ extern "C" { extern int wad_memory_init(); extern void *wad_malloc(int nbytes); -extern void wad_release_memory(); extern char *wad_strdup(const char *c); extern void wad_memory_debug(); +extern void wad_memcpy(void *t, const void *s, unsigned len); /* --- Low level string handling --- */ extern char *wad_string_lookup(char *s); extern void wad_string_debug(); +extern char *wad_strcpy(char *t, const char *s); +extern char *wad_strcat(char *t, const char *s); +extern int wad_strlen(const char *s); /* --- I/O, Debugging --- */ extern void wad_printf(const char *fmt, ...); +extern char *wad_format_hex(unsigned long u, int leading); +extern char *wad_format_unsigned(unsigned long u, int width); +extern char *wad_format_signed(long s, int width); /* --- Memory segments --- */ typedef struct WadSegment { @@ -161,6 +180,7 @@ typedef struct WadFrame { /* Symbol table information for PC */ char *sym_name; /* Symbol name */ + int sym_nlen; /* Symbol name length */ char *sym_file; /* Source file (if any) */ unsigned long sym_base; /* Symbol base address */ unsigned long sym_size; /* Symbol size */ @@ -173,6 +193,7 @@ typedef struct WadFrame { int loc_line; /* Source line */ /* Debugging information */ + int debug_check; /* Checked debugging information */ int debug_nargs; /* Number of arguments */ WadLocal *debug_args; /* Arguments */ WadLocal *debug_lastarg; /* Last argument */ diff --git a/SWIG/Tools/WAD/Python/python.c b/SWIG/Tools/WAD/Python/python.c index cd2de0477..cdc71d75b 100644 --- a/SWIG/Tools/WAD/Python/python.c +++ b/SWIG/Tools/WAD/Python/python.c @@ -5,8 +5,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "Python.h" diff --git a/SWIG/Tools/WAD/Python/type.c b/SWIG/Tools/WAD/Python/type.c index 8886bff20..9758210e3 100644 --- a/SWIG/Tools/WAD/Python/type.c +++ b/SWIG/Tools/WAD/Python/type.c @@ -6,8 +6,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" diff --git a/SWIG/Tools/WAD/Python/wadpyinit.cxx b/SWIG/Tools/WAD/Python/wadpyinit.cxx index 9183b9ec4..15930d83d 100644 --- a/SWIG/Tools/WAD/Python/wadpyinit.cxx +++ b/SWIG/Tools/WAD/Python/wadpyinit.cxx @@ -5,8 +5,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" diff --git a/SWIG/Tools/WAD/README b/SWIG/Tools/WAD/README index 864abe050..2c9335c34 100644 --- a/SWIG/Tools/WAD/README +++ b/SWIG/Tools/WAD/README @@ -1,37 +1,46 @@ WAD (Wrapped Application Debugger) -David M. Beazley -Department of Computer Science -University of Chicago -Chicago, IL 60637 -beazley@cs.uchicago.edu +Copyright (C) 2001 -Copyright (C) 2000-2001 -University of Chicago -All Rights Reserved +Author(s): + David M. Beazley (beazley@cs.uchicago.edu) + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA $Header$ -!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -!!!!!!!! DISCLAIMER !!!!!!!! -!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! +!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! +!!!!!!!! DISCLAIMER !!!!!!!! +!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -THIS IS EXPERIMENTAL UNSUPPORTED SOFTWARE THAT UTILIZES A HORRIBLE MIX -OF LOW-LEVEL C, C++, AND ASSEMBLY CODE. IT IS NOT PORTABLE, IT HAS -NOT BEEN EXHAUSTIVELY TESTED, AND IT MIGHT NOT WORK AT ALL. PLEASE KEEP -AWAY FROM SMALL CHILDREN, PETS, NUCLEAR REACTORS, AIR-TRAFFIC CONTROL, -AND VOTING MACHINES. SIDE EFFECTS MAY INCLUDE NAUSEA, VOMITING, AND -HEADACHE. OTHER THAN THIS, IT'S PERFECTLY SAFE. +THIS IS EXPERIMENTAL UNMAINTAINED RESEARCH SOFTWARE. IT IS NOT +PORTABLE, IT HAS NOT BEEN EXHAUSTIVELY TESTED, AND IT MIGHT NOT WORK +AT ALL. PLEASE KEEP AWAY FROM SMALL CHILDREN, PETS, NUCLEAR REACTORS, +AIR-TRAFFIC CONTROL, AND VOTING MACHINES. -!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -!!!!!!!! SUPPORTED PLATFORMS !!!!!!!! -!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! +THIS SOFTWARE MAY ONLY BE USED FOR NON-COMMERCIAL PURPOSES. IT IS +DISTRIBUTED UNDER THE TERMS OF THE GNU PUBLIC LICENSE WITH THE HOPE +THAT OTHERS FIND IT TO BE INTERESTING. -This software is only known to work with 32-bit applications on Sun -Sparc Solaris 2.8 and recent i386-Linux systems. In addition, there -are numerous issues concerning the interaction of this software with -signal handling, thread libraries, and compilers. Please read this -entire document before proceeding. +0. Supported Platforms + +This software is currently only known to work with 32-bit applications +on Sun Sparc Solaris 2.8 and recent i386-Linux systems. In addition, +there are numerous issues concerning the interaction of this software +with signal handling, thread libraries, and compilers. Please read +this entire document before proceeding. 1. Introduction @@ -43,14 +52,14 @@ with stand-alone C programs. The primary goal of this system is to explore an alternative approach to mixed scripting-compiled debugging. It requires no modifications -or recompilation of existing software--only relinking. Therefore, it -should be relatively easy to try out. Feedback is welcome. Contributions -and modifications are even more welcome. +or recompilation of existing software. Therefore, it should be +relatively easy to try out. Feedback is welcome. Contributions and +modifications are even more welcome. 2. Compilation and Installation -WAD is not particularly portable (for obvious reasons). At this time, -only two platforms are supported: Sun Sparc Solaris and i386-Linux. +WAD is not particularly portable and at this time, only two platforms +are supported: Sun Sparc Solaris and i386-Linux. Installation is as follows: @@ -96,7 +105,7 @@ Notes: them in non-traditional locations. - The Linux version has only been tested with 2.2-12 and 2.2-14 kernels - and the RedHat 6.0 distribution. Your mileage may vary. + and the RedHat 6.x distribution. Your mileage may vary. 3. Using WAD @@ -172,6 +181,10 @@ WAD_NOSTACK - Do NOT use an alternative signal handling stack. WAD_ONESHOT - Disable WAD signal handler after first signal has been received. +WAD_DEBUG_MEMORY - Print information about WAD memory use. + +WAD_DEBUG_STRINGS - Print information about WAD string manager. + 5. Platform Specific Issues General: @@ -210,7 +223,7 @@ Linux: some specific thread-based issues that may arise: 1. WAD causes the program to crash immediately upon startup. - This appears to be caused by a bug in in the implemenation + This appears to be caused by a bug in in the implementation of sigaction() and the initialization of signals. This only occurs if WAD is directly linked to an executable using threads. It does not occur when WAD is dynamically @@ -265,6 +278,8 @@ mechanism. Standard functions tend to just exit. The WAD handler produces a C stack trace and produces a Perl stack trace using some code derived from the sigtrap module. +Note: 3/10/01 - Perl support is currently broken. + 7. Testing and Examples The Test directory contains some very simple code for testing WAD. In the @@ -306,27 +321,49 @@ The scripts debug.py, debug.tcl, debug.pl can be used to test these extensions. 8. Documentation -No official documentation exists at this time. However, the Papers directory contains -two conference papers that describe WAD's design and high-level operation. +No official documentation exists at this time. However, the Papers +directory contains two conference papers that describe WAD's design +and high-level operation. Slides from the Python9 talk are also included. 9. To-Do -The current implementation is fairly messy and undergoing constant -change. Here is the short list: +If you find WAD to be interesting or useful, there are a variety of +ways to contribute. Here is the short to-do list: + + - Better register management. Try to implement in a more portable + way. Add some support code for recovering local variables + that happen to be stored in registers. + + - Add heuristic for recovering functions called through an + -fomit-frame-pointer compiler optimization scheme. This + can probably be determined by looking at the function preamble + machine code. Then one can back-trace to the calling function + and look at it's preamble. + + - Continued clean up and modularization of the core. Many of the + internal APIs could be greatly improved. - - Continued clean up and modularization of the core. - Support for ELF64 linking format. + + - Support for DWARF2 debugging data. + - Improved support for stack-overflow and heap-corruption. Although WAD probably won't be able to recover, it still might be able to produce some informative diagnostics. + - Removal of printf() and other high-level library calls which may not operate with a corrupted heap. + - Better integration with scripting languages. + - Support for new platforms. + - Support for new scripting languages. -Dave Beazley -January 3, 2001 +Please contact me if you are interested in working on any of these projects. + +Dave Beazley (beazley@cs.uchicago.edu) +March 10, 2001 diff --git a/SWIG/Tools/WAD/Wad/Makefile b/SWIG/Tools/WAD/Wad/Makefile index 6f457371b..f8604b843 100644 --- a/SWIG/Tools/WAD/Wad/Makefile +++ b/SWIG/Tools/WAD/Wad/Makefile @@ -10,25 +10,25 @@ WADSRCS = string.c vars.c io.c memory.c return.c default.c stack.c stab.c elf.c object.c init.c segment.c signal.c WADOBJS = string.o vars.o io.o memory.o return.o default.o stack.o stab.o elf.o object.o signal.o segment.o init.o INCLUDE = -I../Include -I. $(SINCLUDE) -WADOPT = -DWAD_SOLARIS +WADOPT = -DWAD_LINUX # Location of your Perl installation -PERLINCLUDE = -I/usr/perl5/5.00503/sun4-solaris/CORE +PERLINCLUDE = -I/usr/lib/perl5/5.00503/i386-linux/CORE PERLSRCS = wadpl.cxx PERLOBJS = wadpl.o # C Compiler -CC = cc -CFLAGS = # +CC = gcc -Wall +CFLAGS = #-fpic # C++ Compiler -CXX = CC -CXXFLAGS = #-Kpic +CXX = c++ +CXXFLAGS = #-fpic # Linking options CLINK = -CXXLINK = CC -G +CXXLINK = g++ -shared # AR AR = ar diff --git a/SWIG/Tools/WAD/Wad/default.c b/SWIG/Tools/WAD/Wad/default.c index 0f25c588a..5338a632b 100644 --- a/SWIG/Tools/WAD/Wad/default.c +++ b/SWIG/Tools/WAD/Wad/default.c @@ -5,8 +5,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -20,7 +33,6 @@ char *wad_arg_string(WadFrame *frame) { static char str[1024]; - static char temp[64]; WadLocal *wp; long *stack; long *nextstack; @@ -58,20 +70,21 @@ char *wad_arg_string(WadFrame *frame) { #ifdef WAD_SOLARIS for (i = 0; i < 6; i++) { - sprintf(temp,"0x%x", stack[8+i]); - strcat(str,temp); + wad_strcpy(temp,"0x"); + wad_strcat(temp,wad_format_hex(stack[8+1],0)); + wad_strcat(str,temp); if (i < 5) - strcat(str,","); + wad_strcat(str,","); } #endif } else { /* We were able to get some argument information out the debugging table */ wp = frame->debug_args; for (i = 0; i < frame->debug_nargs; i++, wp = wp->next) { - strcat(str,wp->name); - strcat(str,"="); - strcat(str,wad_format_var(wp)); - if (i < (frame->debug_nargs-1)) strcat(str,","); + wad_strcat(str,wp->name); + wad_strcat(str,"="); + wad_strcat(str,wad_format_var(wp)); + if (i < (frame->debug_nargs-1)) wad_strcat(str,","); } } return str; @@ -120,7 +133,7 @@ char *wad_load_source(char *path, int line) { return 0; } close(fd); - strcpy(src_path,path); + wad_strcpy(src_path,path); } n = 0; start = src_file; @@ -156,7 +169,6 @@ void wad_release_source() { char *wad_debug_src_string(WadFrame *f, int window) { static char temp[16384]; - char ntemp[64]; if (f->loc_srcfile && strlen(f->loc_srcfile) && (f->loc_line > 0)) { char *line, *c; @@ -167,22 +179,22 @@ char *wad_debug_src_string(WadFrame *f, int window) { if (first < 1) first = 1; line = wad_load_source(f->loc_srcfile,first); if (line) { - strcpy(temp,f->loc_srcfile); - strcat(temp,", line "); - sprintf(ntemp,"%d\n\n", f->loc_line); - strcat(temp,ntemp); + wad_strcpy(temp,f->loc_srcfile); + wad_strcat(temp,", line "); + wad_strcat(temp,wad_format_signed(f->loc_line,-1)); + wad_strcat(temp,"\n\n"); for (i = first; i <= last; i++) { - if (i == f->loc_line) strcat(temp," => "); - else strcat(temp," "); + if (i == f->loc_line) wad_strcat(temp," => "); + else wad_strcat(temp," "); c = strchr(line,'\n'); if (c) { *c = 0; - strcat(temp,line); - strcat(temp,"\n"); + wad_strcat(temp,line); + wad_strcat(temp,"\n"); *c = '\n'; } else { - strcat(temp,line); - strcat(temp,"\n"); + wad_strcat(temp,line); + wad_strcat(temp,"\n"); break; } line = c+1; @@ -204,31 +216,34 @@ char *wad_debug_src_string(WadFrame *f, int window) { void wad_debug_make_strings(WadFrame *f) { static char msg[16384]; - char temp[1024]; while (f) { - sprintf(msg,"#%-3d 0x%08x in ", f->frameno, f->pc); - strcat(msg, f->sym_name ? f->sym_name : "?"); - strcat(msg,"("); - strcat(msg,wad_arg_string(f)); - strcat(msg,")"); + wad_strcpy(msg,"#"); + wad_strcat(msg,wad_format_signed(f->frameno,3)); + wad_strcat(msg," 0x"); + wad_strcat(msg,wad_format_hex(f->pc,1)); + wad_strcat(msg," in "); + wad_strcat(msg, f->sym_name ? f->sym_name : "?"); + wad_strcat(msg,"("); + wad_strcat(msg,wad_arg_string(f)); + wad_strcat(msg,")"); if (f->loc_srcfile && strlen(f->loc_srcfile)) { - strcat(msg," in '"); - strcat(msg, wad_strip_dir(f->loc_srcfile)); - strcat(msg,"'"); + wad_strcat(msg," in '"); + wad_strcat(msg, wad_strip_dir(f->loc_srcfile)); + wad_strcat(msg,"'"); if (f->loc_line > 0) { - sprintf(temp,", line %d", f->loc_line); - strcat(msg,temp); + wad_strcat(msg,", line "); + wad_strcat(msg,wad_format_signed(f->loc_line,-1)); /* Try to locate the source file */ wad_debug_src_string(f, WAD_SRC_WINDOW); } } else { if (f->loc_objfile && strlen(f->loc_objfile)) { - strcat(msg," from '"); - strcat(msg, wad_strip_dir(f->loc_objfile)); - strcat(msg,"'"); + wad_strcat(msg," from '"); + wad_strcat(msg, wad_strip_dir(f->loc_objfile)); + wad_strcat(msg,"'"); } } - strcat(msg,"\n"); + wad_strcat(msg,"\n"); f->debug_str = wad_strdup(msg); f = f->next; } @@ -239,8 +254,6 @@ wad_debug_make_strings(WadFrame *f) { * ----------------------------------------------------------------------------- */ void wad_default_callback(int signo, WadFrame *f, char *ret) { - char *fd; - WadFrame *fline = 0; char *srcstr = 0; switch(signo) { diff --git a/SWIG/Tools/WAD/Wad/elf.c b/SWIG/Tools/WAD/Wad/elf.c index 6a89aaff6..897b27b77 100644 --- a/SWIG/Tools/WAD/Wad/elf.c +++ b/SWIG/Tools/WAD/Wad/elf.c @@ -7,8 +7,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -20,11 +33,8 @@ #endif /* --- What's needed here (high level interface) : - - Mapping of addresses to symbols - Mapping of symbols to file+line - - Parameter passing information? - */ @@ -37,8 +47,6 @@ int wad_elf_check(WadObjectFile *wo) { - int t; - if (strncmp((char *)wo->ptr,ELFMAG, SELFMAG) != 0) return 0; @@ -247,6 +255,7 @@ int elf_search_section_sym(WadFrame *f, char *secname, char *strname) { if (sym[i].st_shndx == 0) continue; #endif f->sym_name = name; + f->sym_nlen = strlen(name); f->sym_base = base + sym[i].st_value; f->sym_size = sym[i].st_size; if (ELF32_ST_BIND(sym[i].st_info) == STB_LOCAL) { @@ -330,7 +339,7 @@ wad_elf_debug_info(WadFrame *f) { WadObjectFile *wo1, *wold; /* Hmmm. Might be in a different file */ char objfile[MAX_PATH]; - strcpy(objfile, f->loc_objfile); + wad_strcpy(objfile, f->loc_objfile); wo1 = wad_object_load(objfile); if (wo1) { wold = f->object; @@ -398,8 +407,11 @@ wad_find_symbol(WadFrame *f) { void wad_find_debug(WadFrame *f) { - if (f->object) + if (f->debug_check) return; + if (f->object) { wad_elf_debug_info(f); + } + f->debug_check = 1; } diff --git a/SWIG/Tools/WAD/Wad/init.c b/SWIG/Tools/WAD/Wad/init.c index 240533a82..3c1e34290 100644 --- a/SWIG/Tools/WAD/Wad/init.c +++ b/SWIG/Tools/WAD/Wad/init.c @@ -6,8 +6,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" diff --git a/SWIG/Tools/WAD/Wad/io.c b/SWIG/Tools/WAD/Wad/io.c index 2277f29a6..37546e400 100644 --- a/SWIG/Tools/WAD/Wad/io.c +++ b/SWIG/Tools/WAD/Wad/io.c @@ -6,13 +6,92 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" #include +/* Utility functions used to generate strings that are guaranteed not to + rely upon malloc() and related functions */ + +char *wad_format_hex(unsigned long u, int leading) { + static char digits[] = "0123456789abcdef"; + static char result[64]; + int i; + char *c; + c = &result[63]; + *c = 0; + for (i = 0; i < (sizeof(unsigned long) << 1); i++) { + int digit; + if (!u || leading) { + digit = u & 0xf; + *(--c) = digits[digit]; + } + u = u >> 4; + } + return c; +} + +char *wad_format_unsigned(unsigned long u, int width) { + static char result[128]; + static char digits[] = "0123456789"; + char *c, *w; + int count = 0; + int i; + c = &result[64]; + while (u) { + int digit = u % 10; + *(--c) = digits[digit]; + count++; + u = u / 10; + } + if (!count) { + *(--c) = '0'; + count++; + } + w = &result[64]; + for (i = count; i < width; i++) { + *(w++) = ' '; + } + *w = 0; + return c; +} + +char *wad_format_signed(signed long s, int width) { + static char result[128]; + unsigned long u; + char *c = result; + if (s < 0) { + *(c++) = '-'; + width--; + u = (unsigned long) (-s); + if (u == 0) { + u = (unsigned long) s; + } + } else { + u = (unsigned long) s; + } + *c = 0; + wad_strcat(result, wad_format_unsigned(u,width)); + return result; +} + + void wad_printf(const char *fmt, ...) { va_list ap; va_start(ap, fmt); diff --git a/SWIG/Tools/WAD/Wad/memory.c b/SWIG/Tools/WAD/Wad/memory.c index 053697460..539e3ac33 100644 --- a/SWIG/Tools/WAD/Wad/memory.c +++ b/SWIG/Tools/WAD/Wad/memory.c @@ -10,8 +10,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2001. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -23,7 +36,6 @@ typedef struct _WadMemory { } WadMemory; static WadMemory *current = 0; /* Current memory block */ -static WadMemory *persistent = 0; /* Persistent memory data */ static int pagesize = 0; /* System page size */ static int devzero = 0; static int npalloc = 8; /* Number of pages per alloc */ @@ -110,26 +122,6 @@ void *wad_malloc(int nbytes) { return c; } -/* ----------------------------------------------------------------------------- - * wad_release_memory() - * - * Releases all memory previously allocated by wad_malloc(). This is inherently - * dangerous. - * ----------------------------------------------------------------------------- */ - -void wad_release_memory() { - WadMemory *wm, *next; - - return; - wm = current; - while (wm) { - next = wm->next; - munmap((char *) wm, wm->npages*pagesize); - wm = next; - } - current = 0; -} - /* ----------------------------------------------------------------------------- * wad_strdup() * @@ -140,10 +132,23 @@ char *wad_strdup(const char *c) { char *t; if (!c) c = ""; t = (char *) wad_malloc(strlen(c)+1); - strcpy(t,c); + wad_strcpy(t,c); return t; } +/* ----------------------------------------------------------------------------- + * wad_memcpy() + * ----------------------------------------------------------------------------- */ + +void wad_memcpy(void *t, const void *s, unsigned len) { + char *tc, *sc; + int i; + tc = (char *) t; + sc = (char *) s; + for (i = 0; i < len; i++, tc++, sc++) + *tc = *sc; +} + /* ----------------------------------------------------------------------------- * wad_memory_debug() * ----------------------------------------------------------------------------- */ @@ -159,6 +164,6 @@ void wad_memory_debug() { inuse += m->last; m = m->next; } - printf("WAD: memory allocated %d bytes (%d bytes used).\n", total_alloc, inuse); + wad_printf("WAD: memory allocated %d bytes (%d bytes used).\n", total_alloc, inuse); } } diff --git a/SWIG/Tools/WAD/Wad/object.c b/SWIG/Tools/WAD/Wad/object.c index 82797ffdd..f25c2e442 100644 --- a/SWIG/Tools/WAD/Wad/object.c +++ b/SWIG/Tools/WAD/Wad/object.c @@ -15,8 +15,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -34,7 +47,6 @@ static WadFile *wad_files = 0; /* Linked list of loaded files * /* private function to manage the loading of raw files into memory */ static WadFile * load_file(const char *path) { - int i; int fd; WadFile *wf = wad_files; @@ -84,7 +96,6 @@ static WadObjectFile *wad_objects = 0; /* Linked list of object fil void wad_object_reset() { - int i; WadFile *f = wad_files; if (wad_debug_mode & DEBUG_OBJECT) { wad_printf("wad: Releasing all files.\n"); @@ -112,7 +123,6 @@ WadObjectFile * wad_object_load(const char *path) { WadObjectFile *wo; WadFile *wf; - int i; WadObjectFile *wad_arobject_load(const char *path, const char *name); if (wad_debug_mode & DEBUG_OBJECT) { @@ -139,7 +149,7 @@ wad_object_load(const char *path) { char *c; c = strchr(path,'('); if (c) { - strcpy(realfile,path); + wad_strcpy(realfile,path); c = strchr(realfile,'('); *c = 0; objfile = c+1; @@ -181,9 +191,6 @@ WadObjectFile * wad_arobject_load(const char *arpath, const char *robjname) { WadObjectFile *wo; WadFile *wf; - int nf; - int fd; - int i; int arlen; char *arptr; struct ar_hdr *ah; @@ -193,8 +200,8 @@ wad_arobject_load(const char *arpath, const char *robjname) { int sobjname; char objname[MAX_PATH]; - strcpy(objname,robjname); - strcat(objname,"/"); + wad_strcpy(objname,robjname); + wad_strcat(objname,"/"); sobjname = strlen(objname); wf = load_file(arpath); diff --git a/SWIG/Tools/WAD/Wad/plat/segment_linux.c b/SWIG/Tools/WAD/Wad/plat/segment_linux.c deleted file mode 100644 index b19e1584d..000000000 --- a/SWIG/Tools/WAD/Wad/plat/segment_linux.c +++ /dev/null @@ -1,74 +0,0 @@ -/* ----------------------------------------------------------------------------- - * segment_linux.c - * - * This file reads the virtual memory map on Linux machines. - * This file is not compiled directly, it is included in the - * segment.c file. - * - * Author(s) : David Beazley (beazley@cs.uchicago.edu) - * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. - * ----------------------------------------------------------------------------- */ - -static char linux_firstsegment[1024]; -static int linux_first = 1; - -static int -segment_open() { - FILE *f; - f = fopen("/proc/self/maps", "r"); - linux_first =1; - return (int) f; -} - -static int -segment_read(int fd, WadSegment *s) -{ - char pbuffer[1024]; - char *c; - int len; - FILE *fs = (FILE *) fd; - c = fgets(pbuffer,1024,fs); - if (!c) return 0; - - pbuffer[strlen(pbuffer)-1] = 0; /* Chop off endline */ - - /* Break up the field into records */ - /* 0-8 : Starting address - 9-17 : Ending Address - 18 : r - 19 : w - 20 : x - 21 : p - 23-31 : Offset - 49- : Filename */ - - len = strlen(pbuffer); - pbuffer[8] = 0; - pbuffer[17] = 0; - pbuffer[31] = 0; - if (len >= 49) { - s->mapname = wad_strdup(pbuffer+49); - s->mappath = s->mapname; - } else { - s->mapname = ""; - s->mappath = s->mapname; - } - if (linux_first) { - strcpy(linux_firstsegment, s->mappath); - linux_first = 0; - } - s->vaddr = (char *) strtoul(pbuffer,NULL,16); - s->size = strtoul(pbuffer+9,NULL,16) - (long) (s->vaddr); - s->offset = strtoul(pbuffer+23,NULL,16); - if (strcmp(linux_firstsegment, s->mappath) == 0) { - s->base = 0; - } else { - s->base = s->vaddr; - } - s++; - return 1; -} - - diff --git a/SWIG/Tools/WAD/Wad/plat/segment_solaris.c b/SWIG/Tools/WAD/Wad/plat/segment_solaris.c deleted file mode 100644 index 45b77456a..000000000 --- a/SWIG/Tools/WAD/Wad/plat/segment_solaris.c +++ /dev/null @@ -1,45 +0,0 @@ -/* ----------------------------------------------------------------------------- - * segment_solaris.c - * - * This file reads the virtual memory map on Solaris machines. - * This file is not compiled directly, it is included in the - * segment.c file. - * - * Author(s) : David Beazley (beazley@cs.uchicago.edu) - * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. - * ----------------------------------------------------------------------------- */ - - -static int -segment_open() { - int f; - f = open("/proc/self/map", O_RDONLY); - return f; -} - -static int -segment_read(int fs, WadSegment *s) { - int dz; - int n; - prmap_t pmap; - - n = read(fs, &pmap, sizeof(prmap_t)); - if (n <= 0) return 0; - s->mapname = wad_strdup(pmap.pr_mapname); - s->mappath = (char *) wad_malloc(20+strlen(pmap.pr_mapname)); - strcpy(s->mappath,"/proc/self/object/"); - strcat(s->mappath,pmap.pr_mapname); - s->vaddr = (char *) pmap.pr_vaddr; - - /* This is a solaris oddity. a.out section starts 1 page up, but - symbols are relative to a base of 0 */ - - if (strcmp(s->mapname,"a.out") == 0) s->base = 0; - else s->base = s->vaddr; - - s->size = pmap.pr_size; - s->offset = pmap.pr_offset; - return 1; -} diff --git a/SWIG/Tools/WAD/Wad/return.c b/SWIG/Tools/WAD/Wad/return.c index 3c4ca2e45..704de8076 100644 --- a/SWIG/Tools/WAD/Wad/return.c +++ b/SWIG/Tools/WAD/Wad/return.c @@ -5,8 +5,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -20,7 +33,7 @@ static int num_return = 0; void wad_set_return(const char *name, long value) { WadReturnFunc *rp; rp = &return_points[num_return]; - strcpy(rp->name,name); + wad_strcpy(rp->name,name); rp->value = value; num_return++; if (wad_debug_mode & DEBUG_RETURN) { diff --git a/SWIG/Tools/WAD/Wad/segment.c b/SWIG/Tools/WAD/Wad/segment.c index 314af25c9..2cac7b3e0 100644 --- a/SWIG/Tools/WAD/Wad/segment.c +++ b/SWIG/Tools/WAD/Wad/segment.c @@ -11,8 +11,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -20,12 +33,105 @@ /* Include the proper code for reading the segment map */ #ifdef WAD_SOLARIS -#include "plat/segment_solaris.c" -#endif + +/* This code is used to read the process virtual memory map on Solaris machines */ + +static int +segment_open() { + int f; + f = open("/proc/self/map", O_RDONLY); + return f; +} + +static int +segment_read(int fs, WadSegment *s) { + int dz; + int n; + prmap_t pmap; + + n = read(fs, &pmap, sizeof(prmap_t)); + if (n <= 0) return 0; + s->mapname = wad_strdup(pmap.pr_mapname); + s->mappath = (char *) wad_malloc(20+strlen(pmap.pr_mapname)); + wad_strcpy(s->mappath,"/proc/self/object/"); + strcat(s->mappath,pmap.pr_mapname); + s->vaddr = (char *) pmap.pr_vaddr; + + /* This is a solaris oddity. a.out section starts 1 page up, but + symbols are relative to a base of 0 */ + + if (strcmp(s->mapname,"a.out") == 0) s->base = 0; + else s->base = s->vaddr; + + s->size = pmap.pr_size; + s->offset = pmap.pr_offset; + return 1; +} + +#endif /* WAD_SOLARIS */ #ifdef WAD_LINUX -#include "plat/segment_linux.c" -#endif +static char linux_firstsegment[1024]; +static int linux_first = 1; + +static int +segment_open() { + FILE *f; + f = fopen("/proc/self/maps", "r"); + linux_first =1; + return (int) f; +} + +static int +segment_read(int fd, WadSegment *s) +{ + char pbuffer[1024]; + char *c; + int len; + FILE *fs = (FILE *) fd; + c = fgets(pbuffer,1024,fs); + if (!c) return 0; + + pbuffer[strlen(pbuffer)-1] = 0; /* Chop off endline */ + + /* Break up the field into records */ + /* 0-8 : Starting address + 9-17 : Ending Address + 18 : r + 19 : w + 20 : x + 21 : p + 23-31 : Offset + 49- : Filename */ + + len = strlen(pbuffer); + pbuffer[8] = 0; + pbuffer[17] = 0; + pbuffer[31] = 0; + if (len >= 49) { + s->mapname = wad_strdup(pbuffer+49); + s->mappath = s->mapname; + } else { + s->mapname = ""; + s->mappath = s->mapname; + } + if (linux_first) { + wad_strcpy(linux_firstsegment, s->mappath); + linux_first = 0; + } + s->vaddr = (char *) strtoul(pbuffer,NULL,16); + s->size = strtoul(pbuffer+9,NULL,16) - (long) (s->vaddr); + s->offset = strtoul(pbuffer+23,NULL,16); + if (strcmp(linux_firstsegment, s->mappath) == 0) { + s->base = 0; + } else { + s->base = s->vaddr; + } + s++; + return 1; +} + +#endif /* WAD_LINUX */ static WadSegment *segments = 0; /* Linked list of segments */ diff --git a/SWIG/Tools/WAD/Wad/signal.c b/SWIG/Tools/WAD/Wad/signal.c index 5cd6effc2..7897ed0e1 100644 --- a/SWIG/Tools/WAD/Wad/signal.c +++ b/SWIG/Tools/WAD/Wad/signal.c @@ -5,8 +5,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -309,20 +322,17 @@ void wad_signalhandler(int sig, siginfo_t *si, void *vcontext) { p_sp = (unsigned long) (*sp); #ifdef WAD_LINUX p_fp = (unsigned long) (*fp); - /* printf("fault at address %x, pc = %x, sp = %x, fp = %x\n", addr, p_pc, p_sp, p_fp); */ #endif #ifdef WAD_SOLARIS p_fp = (unsigned long) *(((long *) p_sp) + 14); #endif - /* printf("fault at address %x, pc = %x, sp = %x, fp = %x\n", addr, p_pc, p_sp, p_fp);*/ - if (wad_debug_mode & DEBUG_SIGNAL) { - printf("fault at address %x, pc = %x, sp = %x, fp = %x\n", addr, p_pc, p_sp, p_fp); + wad_printf("fault at address %x, pc = %x, sp = %x, fp = %x\n", addr, p_pc, p_sp, p_fp); } if (wad_stacked_signal) { - printf("Fault in wad at pc = %x, sp = %x\n", p_pc, p_sp); + wad_printf("Fault in wad at pc = %x, sp = %x\n", p_pc, p_sp); exit(1); } wad_stacked_signal++; @@ -330,11 +340,10 @@ void wad_signalhandler(int sig, siginfo_t *si, void *vcontext) { if (!frame) { /* We're really hosed. Not possible to generate a stack trace */ - printf("WAD: Unable to generate stack trace.\n"); - printf("WAD: Maybe the call stack has been corrupted by buffer overflow.\n"); + wad_printf("WAD: Unable to generate stack trace.\n"); + wad_printf("WAD: Maybe the call stack has been corrupted by buffer overflow.\n"); wad_signal_clear(); return; - /* exit(1); */ } { @@ -342,12 +351,15 @@ void wad_signalhandler(int sig, siginfo_t *si, void *vcontext) { while (f) { wad_find_object(f); wad_find_symbol(f); + f = f->next; + } + f = frame; + while (f) { wad_find_debug(f); wad_build_vars(f); f = f->next; } } - wad_heap_overflow = 0; if (sig == SIGSEGV) { if (addr >= current_brk) wad_heap_overflow = 1; @@ -428,10 +440,10 @@ void wad_signal_init() { static stack_t sigstk; if (wad_debug_mode & DEBUG_INIT) { - printf("WAD: Initializing signal handler.\n"); + wad_printf("WAD: Initializing signal handler.\n"); } - /* This is buggy in Linux and threads. disabled by default */ + #ifndef WAD_LINUX /* Set up an alternative stack */ @@ -470,7 +482,7 @@ void wad_signal_init() { return; werror: - printf("WAD: Couldn't install signal handler!\n"); + wad_printf("WAD: Couldn't install signal handler!\n"); } /* ----------------------------------------------------------------------------- @@ -484,3 +496,6 @@ void wad_signal_clear() { signal(SIGFPE, SIG_DFL); signal(SIGABRT, SIG_DFL); } + + + diff --git a/SWIG/Tools/WAD/Wad/stab.c b/SWIG/Tools/WAD/Wad/stab.c index e79178c12..dbb80e69c 100644 --- a/SWIG/Tools/WAD/Wad/stab.c +++ b/SWIG/Tools/WAD/Wad/stab.c @@ -6,8 +6,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -147,7 +160,6 @@ static void type_add(char *name, char *value) { add_more: if (vr) { /* There is a mapping to another type */ - /* printf("adding '%s', '%s'\n", v, vr); */ type_add(v,vr); } } @@ -274,7 +286,7 @@ static void types_print() { for (i = 0; i < HASH_SIZE; i++) { s = lnames[i]; while (s) { - printf("%20s %s\n", s->name, s->value); + wad_printf("%20s %s\n", s->name, s->value); s = s->next; } } @@ -318,7 +330,6 @@ stab_symbol(Stab *s, char *stabstr) { char *pstr; char name[1024]; char value[65536]; - int a; str = stabstr+s->n_strx; pstr = stab_string_parm(str); @@ -331,7 +342,7 @@ stab_symbol(Stab *s, char *stabstr) { /* printf("stab lsym: other=%d, desc=%d, value=%d, str='%s'\n", s->n_other,s->n_desc,s->n_value, stabstr+s->n_strx); */ /* wad_printf("name = '%s', pstr='%s'\n", name, pstr+2); */ - strcpy(value,pstr+2); + wad_strcpy(value,pstr+2); type_add(name,value); } } @@ -343,7 +354,7 @@ stab_symbol(Stab *s, char *stabstr) { * Collect stabs data for a function definition. * ----------------------------------------------------------------------------- */ -static void +static int scan_function(Stab *s, char *stabstr, int ns, WadFrame *f) { int i; unsigned long offset; @@ -362,7 +373,7 @@ scan_function(Stab *s, char *stabstr, int ns, WadFrame *f) { } if ((s->n_type == N_UNDF) || (s->n_type == N_SO) || (s->n_type == N_FUN) || - (s->n_type == N_OBJ)) return; + (s->n_type == N_OBJ)) return i; if (s->n_type == N_LBRAC) { get_parms = 0; @@ -372,7 +383,7 @@ scan_function(Stab *s, char *stabstr, int ns, WadFrame *f) { if (s->n_type == N_LSYM) { /* This might be a local variable definition */ - /* printf("local: n_value = %d, offset = %d\n", s->n_value, offset);*/ + /* wad_printf("local: n_value = %d, offset = %d\n", s->n_value, offset);*/ if (s->n_desc <= f->loc_line) { /* Okay. We can pay attention to it */ @@ -426,7 +437,7 @@ scan_function(Stab *s, char *stabstr, int ns, WadFrame *f) { t = type_resolve(tname); arg->type = type_typecode(t); if (wad_debug_mode & DEBUG_STABS) { - printf("type_resolve '%s' -> '%s' (%d)\n", tname, t, arg->type); + wad_printf("type_resolve '%s' -> '%s' (%d)\n", tname, t, arg->type); } } if (f->debug_locals) { @@ -523,7 +534,7 @@ scan_function(Stab *s, char *stabstr, int ns, WadFrame *f) { t = type_resolve(tname); arg->type = type_typecode(t); if (wad_debug_mode & DEBUG_STABS) { - printf("type_resolve '%s' -> '%s' (%d)\n", tname, t, arg->type); + wad_printf("type_resolve '%s' -> '%s' (%d)\n", tname, t, arg->type); } } if (f->debug_args) { @@ -537,6 +548,7 @@ scan_function(Stab *s, char *stabstr, int ns, WadFrame *f) { f->debug_nargs++; } } + return i; } /* Given a stabs data segment (obtained somehow), this function tries to @@ -557,19 +569,15 @@ int wad_search_stab(void *sp, int size, char *stabstr, WadFrame *f) { Stab *s; int ns; - int infunc; - int slen; int i; int found = 0; - int filefound = 0; char *file, *lastfile = 0; - int chk = 0; - WadLocal *arg; char srcfile[MAX_PATH]; char objfile[MAX_PATH]; + /* It appears to be necessary to clear the types table on each new stabs section */ init_hash(); @@ -579,7 +587,6 @@ wad_search_stab(void *sp, int size, char *stabstr, WadFrame *f) { s = (Stab *) sp; /* Stabs data */ ns = size/sizeof(Stab); /* number of stabs */ - slen = strlen(f->sym_name); srcfile[0] = 0; objfile[0] = 0; @@ -597,7 +604,8 @@ wad_search_stab(void *sp, int size, char *stabstr, WadFrame *f) { /* New stabs section. We need to be a little careful here. Do a recursive search of the subsection. */ - if (wad_search_stab(s+1,s->n_desc*sizeof(Stab), stabstr, f)) return 1; + /* if (wad_search_stab(s+1,s->n_desc*sizeof(Stab), stabstr, f)) return 1; */ + wad_search_stab(s+1,s->n_desc*sizeof(Stab), stabstr, f); /* On solaris, each stabs section seems to increment the stab string pointer. On Linux, the linker seems to do a certain amount of optimization that results in a single @@ -616,9 +624,9 @@ wad_search_stab(void *sp, int size, char *stabstr, WadFrame *f) { /* Look for directory */ file = stabstr+s->n_strx; if (strlen(file) && (file[strlen(file)-1] == '/')) { - strcpy(srcfile,file); + wad_strcpy(srcfile,file); } else { - strcat(srcfile,file); + wad_strcat(srcfile,file); } objfile[0] = 0; /* If we have a file match, we might be looking for a local symbol. If so, @@ -626,37 +634,54 @@ wad_search_stab(void *sp, int size, char *stabstr, WadFrame *f) { /* We're going to check for a file match. Maybe we're looking for a local symbol */ if (f->sym_file && strcmp(f->sym_file,file) == 0) { - filefound = 1; found = 1; } lastfile = file; } else if (s->n_type == N_OBJ) { /* Object file specifier */ if (objfile[0]) { - strcat(objfile,"/"); + wad_strcat(objfile,"/"); } - strcat(objfile,stabstr+s->n_strx); + wad_strcat(objfile,stabstr+s->n_strx); } else if (s->n_type == N_FUN) { - if (match_stab_symbol(f->sym_name, stabstr+s->n_strx, slen)) { - if (!f->sym_file || (strcmp(f->sym_file,lastfile) == 0)) { - /* Go find debugging information for the function */ - scan_function(s+1, stabstr, ns -i - 1, f); - f->loc_srcfile = wad_string_lookup(srcfile); - f->loc_objfile = wad_string_lookup(objfile); - /* f->loc_srcfile = wad_strdup(srcfile); - f->loc_objfile = wad_strdup(objfile); */ - return 1; + /* Due to the bogosity and performance issues of managing stabs types, we are going to check + the current frame as well as all remaining unchecked stack frames for a match. Generally, + it is much faster for us to scan the stabs data once checking N stack frames than it + is to check N stack frames, scanning the stabs data each time. + */ + + WadFrame *g; + g = f; + while (g) { + if ((!g->sym_name) || (g->debug_check)) { + g = g->next; + continue; } + if (match_stab_symbol(g->sym_name, stabstr+s->n_strx, g->sym_nlen)) { + if (!g->sym_file || (strcmp(g->sym_file,lastfile) == 0)) { + int n; + /* Go find debugging information for the function */ + n = scan_function(s+1, stabstr, ns -i - 1, g); + g->loc_srcfile = wad_string_lookup(srcfile); + g->loc_objfile = wad_string_lookup(objfile); + g->debug_check = 1; + } + } + g = g->next; } } } - if (found) { + /* If found, but no other debugging information was filled in, go ahead and copy the + source and objfile information */ + + if ((found) && (!f->debug_check)) { f->loc_srcfile = wad_string_lookup(srcfile); f->loc_objfile = wad_string_lookup(objfile); - /* f->loc_srcfile = wad_strdup(srcfile); - f->loc_objfile = wad_strdup(objfile); */ - } return found; } + + + + diff --git a/SWIG/Tools/WAD/Wad/stack.c b/SWIG/Tools/WAD/Wad/stack.c index f3d1b139e..8ee8bd8a6 100644 --- a/SWIG/Tools/WAD/Wad/stack.c +++ b/SWIG/Tools/WAD/Wad/stack.c @@ -5,8 +5,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -31,6 +44,7 @@ new_frame() { f->stack_size = 0; f->sym_name = 0; + f->sym_nlen = 0; f->sym_file = 0; f->sym_base = 0; f->sym_size = 0; @@ -41,6 +55,7 @@ new_frame() { f->loc_srcfile = 0; f->loc_line = 0; + f->debug_check = 0; f->debug_nargs = -1; f->debug_args = 0; f->debug_lastarg = 0; @@ -111,7 +126,7 @@ stack_unwind(unsigned long *pc, unsigned long *sp, unsigned long *fp) { f->stack_size = fake_fp - *sp; /* Make a copy of the call stack */ f->stack = (char *) wad_malloc(f->stack_size); - memcpy(f->stack,(void *) *sp, f->stack_size); + wad_memcpy(f->stack,(void *) *sp, f->stack_size); /* Update the sp, fp, and pc */ diff --git a/SWIG/Tools/WAD/Wad/string.c b/SWIG/Tools/WAD/Wad/string.c index 3e3abad59..427bd04bb 100644 --- a/SWIG/Tools/WAD/Wad/string.c +++ b/SWIG/Tools/WAD/Wad/string.c @@ -8,8 +8,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -90,4 +103,26 @@ void wad_string_debug() { } } +/* Our own string copy */ +char *wad_strcpy(char *t, const char *s) { + if (s) + for (; *s; s++, t++) *t = *s; + *t = 0; + return t; +} + +char * +wad_strcat(char *t, const char *s) { + while (*t) t++; + return wad_strcpy(t,s); +} + +int +wad_strlen(const char *s) { + int count = 0; + while (*(s++)) count++; + return count; +} + + diff --git a/SWIG/Tools/WAD/Wad/vars.c b/SWIG/Tools/WAD/Wad/vars.c index 096576fc2..df2127915 100644 --- a/SWIG/Tools/WAD/Wad/vars.c +++ b/SWIG/Tools/WAD/Wad/vars.c @@ -10,8 +10,21 @@ * * Author(s) : David Beazley (beazley@cs.uchicago.edu) * - * Copyright (C) 2000. The University of Chicago - * See the file LICENSE for information on usage and redistribution. + * Copyright (C) 2001 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * ----------------------------------------------------------------------------- */ #include "wad.h" @@ -27,8 +40,6 @@ void wad_build_vars(WadFrame *f) { char *nstack = 0; char *pstack = 0; WadLocal *loc; - int laststack = 0; - WadLocal *lastloc = 0; int n; stack = (char *) f->stack; @@ -99,9 +110,9 @@ char *wad_format_int(char *ptr, int nbytes, int sgn) { value = (value << 8) + *s; } if (sgn) { - sprintf(fmt,"%ld", (long) value); + return wad_format_signed((long) value,-1); } else { - sprintf(fmt,"%lu", value); + return wad_format_unsigned((unsigned long) value, -1); } return fmt; } @@ -117,32 +128,35 @@ char *wad_format_var(WadLocal *l) { switch(l->type) { case WAD_TYPE_INT32: - strcpy(buffer,wad_format_int(l->ptr,4,1)); + wad_strcpy(buffer,wad_format_int(l->ptr,4,1)); break; case WAD_TYPE_UINT32: - strcpy(buffer,wad_format_int(l->ptr,4,0)); + wad_strcpy(buffer,wad_format_int(l->ptr,4,0)); break; case WAD_TYPE_INT16: - strcpy(buffer,wad_format_int(l->ptr,2,1)); + wad_strcpy(buffer,wad_format_int(l->ptr,2,1)); break; case WAD_TYPE_UINT16: - strcpy(buffer,wad_format_int(l->ptr,2,0)); + wad_strcpy(buffer,wad_format_int(l->ptr,2,0)); break; case WAD_TYPE_INT8: - strcpy(buffer,wad_format_int(l->ptr,1,1)); + wad_strcpy(buffer,wad_format_int(l->ptr,1,1)); break; case WAD_TYPE_UINT8: - strcpy(buffer,wad_format_int(l->ptr,1,0)); + wad_strcpy(buffer,wad_format_int(l->ptr,1,0)); break; case WAD_TYPE_CHAR: - sprintf(buffer,"'%c'", *((char *)l->ptr)); + buffer[0] = '\''; + buffer[1] = *((char *) l->ptr); + buffer[2] = '\''; + buffer[3] = 0; break; case WAD_TYPE_FLOAT: - memcpy(&fval,l->ptr,sizeof(float)); + wad_memcpy(&fval,l->ptr,sizeof(float)); sprintf(buffer,"%g",fval); break; case WAD_TYPE_DOUBLE: - memcpy(&dval,l->ptr,sizeof(double)); + wad_memcpy(&dval,l->ptr,sizeof(double)); sprintf(buffer,"%g",dval); break; case WAD_TYPE_UNKNOWN: @@ -155,6 +169,7 @@ char *wad_format_var(WadLocal *l) { int leading = 1; char *c; char *ptr; + #ifdef WAD_LITTLE_ENDIAN ptr = ((char *) l->ptr) + 3; incr = -1; @@ -162,9 +177,9 @@ char *wad_format_var(WadLocal *l) { ptr = (char *) l->ptr; incr =1 ; #endif - strcat(buffer,"0x"); + wad_strcat(buffer,"0x"); c = buffer+2; - for (i = 0; i < 4; i++) { + for (i = 0; i < sizeof(void *); i++) { b = (int) *ptr; if (!leading || (b)) { if (!leading || (b & 0xf0)) @@ -195,39 +210,37 @@ long wad_local_as_long(WadLocal *loc) { switch(loc->type) { case WAD_TYPE_INT32: - memcpy(&i32,loc->ptr,4); + wad_memcpy(&i32,loc->ptr,4); value = (long) i32; break; case WAD_TYPE_UINT32: - memcpy(&u32,loc->ptr,4); + wad_memcpy(&u32,loc->ptr,4); value = (long) u32; break; case WAD_TYPE_INT16: - memcpy(&i16,loc->ptr,2); + wad_memcpy(&i16,loc->ptr,2); value = (long) i16; break; case WAD_TYPE_UINT16: - memcpy(&u16,loc->ptr,2); + wad_memcpy(&u16,loc->ptr,2); value = (long) u16; break; case WAD_TYPE_INT8: case WAD_TYPE_CHAR: - memcpy(&i8, loc->ptr,1); + wad_memcpy(&i8, loc->ptr,1); value = (long) i8; break; case WAD_TYPE_UINT8: - memcpy(&u8, loc->ptr,1); + wad_memcpy(&u8, loc->ptr,1); value = (long) u8; break; default: - memcpy(&u32,loc->ptr,4); + wad_memcpy(&u32,loc->ptr,4); value = (long) u32; } return value; } - - /* Convert a wad local variable to a long */ double wad_local_as_double(WadLocal *loc) { double value = 0; @@ -235,10 +248,10 @@ double wad_local_as_double(WadLocal *loc) { switch(loc->type) { case WAD_TYPE_DOUBLE: - memcpy(&value,loc->ptr,8); + wad_memcpy(&value,loc->ptr,8); break; case WAD_TYPE_FLOAT: - memcpy(&fval,loc->ptr,4); + wad_memcpy(&fval,loc->ptr,4); value = (double) fval; break; default: