diff options
Diffstat (limited to 'recipes/gcc/gcc-4.4.0/debian/ada-symbolic-tracebacks.dpatch')
| -rw-r--r-- | recipes/gcc/gcc-4.4.0/debian/ada-symbolic-tracebacks.dpatch | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/recipes/gcc/gcc-4.4.0/debian/ada-symbolic-tracebacks.dpatch b/recipes/gcc/gcc-4.4.0/debian/ada-symbolic-tracebacks.dpatch new file mode 100644 index 0000000000..d39accfdb5 --- /dev/null +++ b/recipes/gcc/gcc-4.4.0/debian/ada-symbolic-tracebacks.dpatch @@ -0,0 +1,346 @@ +#! /bin/sh -e + +# DP: - Enable support for symbolic tracebacks in exceptions (delete the dummy +# DP: convert_addresses from adaint.c, and provide a real one separately.) + +dir= +if [ $# -eq 3 -a "$2" = '-d' ]; then + pdir="-d $3" + dir="$3/" +elif [ $# -ne 1 ]; then + echo >&2 "`basename $0`: script expects -patch|-unpatch as argument" + exit 1 +fi +case "$1" in + -patch) + patch $pdir -f --no-backup-if-mismatch -p0 < $0 + ;; + -unpatch) + patch $pdir -f --no-backup-if-mismatch -R -p0 < $0 + ;; + *) + echo >&2 "`basename $0`: script expects -patch|-unpatch as argument" + exit 1 +esac +exit 0 + +Ported Jürgen Pfeifer's patch to enable symbolic tracebacks on Debian +GNU/Linux. + +The binary distribution of GNAT 3.15p comes with an old version of +binutils that includes a library, libaddr2line.a. This library does +not exist in recent versions of binutils. The patch works around this +by calling /usr/bin/addr2line (still part of binutils) and parsing the +output. See debian/convert_addresses.c for the gory details. + +I have modified convert_addresses.c to not use a shell script anymore; +Debian controls the version of binutils which is installed. Also, I +use execve instead of execle. + +-- +Ludovic Brenta. + +# ' make emacs highlighting happy + +Index: gcc/ada/Makefile.in +=================================================================== +--- gcc/ada/Makefile.in.orig 2008-01-13 22:19:26.000000000 +0100 ++++ gcc/ada/Makefile.in 2008-01-29 11:56:42.178635045 +0100 +@@ -1655,7 +1655,7 @@ + a-nucoar.o a-nurear.o i-forbla.o i-forlap.o s-gearop.o + + GNATRTL_OBJS = $(GNATRTL_NONTASKING_OBJS) $(GNATRTL_TASKING_OBJS) \ +- $(GNATRTL_LINEARALGEBRA_OBJS) g-trasym.o memtrack.o ++ $(GNATRTL_LINEARALGEBRA_OBJS) g-trasym.o memtrack.o convert_addresses.o + + # Default run time files + +@@ -1810,7 +1810,6 @@ + for file in rts/*.ali; do \ + $(INSTALL_DATA_DATE) $$file $(DESTDIR)$(ADA_RTL_OBJ_DIR); \ + done +- -$(INSTALL_DATA) rts/g-trasym$(objext) $(DESTDIR)$(ADA_RTL_OBJ_DIR) + -cd rts; for file in *$(arext);do \ + $(INSTALL_DATA) $$file $(DESTDIR)$(ADA_RTL_OBJ_DIR); \ + $(RANLIB_FOR_TARGET) $(DESTDIR)$(ADA_RTL_OBJ_DIR)/$$file; \ +@@ -1907,7 +1906,7 @@ + $(GNATRTL_OBJS) + $(RM) rts/libgnat$(arext) rts/libgnarl$(arext) + $(AR_FOR_TARGET) $(AR_FLAGS) rts/libgnat$(arext) \ +- $(addprefix rts/,$(GNATRTL_NONTASKING_OBJS) $(LIBGNAT_OBJS)) ++ $(addprefix rts/,$(GNATRTL_NONTASKING_OBJS) $(LIBGNAT_OBJS) g-trasym.o convert_addresses.o) + ifneq ($(PREFIX_OBJS),) + $(AR_FOR_TARGET) $(AR_FLAGS) rts/libgccprefix$(arext) \ + $(PREFIX_OBJS); +@@ -1940,6 +1939,7 @@ + $(TARGET_LIBGCC2_CFLAGS) \ + -o libgnat$(hyphen)$(LIBRARY_VERSION)$(soext) \ + $(GNATRTL_NONTASKING_OBJS) $(LIBGNAT_OBJS) \ ++ g-trasym.o convert_addresses.o \ + $(SO_OPTS)libgnat$(hyphen)$(LIBRARY_VERSION)$(soext) \ + $(MISCLIB) -lm + cd rts; ../../xgcc -B../../ -shared $(GNATLIBCFLAGS) \ +@@ -2183,6 +2183,7 @@ + sysdep.o : sysdep.c + raise-gcc.o : raise-gcc.c raise.h + raise.o : raise.c raise.h ++convert_addresses.o : convert_addresses.c + vx_stack_info.o : vx_stack_info.c + + gen-soccon: gen-soccon.c gsocket.h +Index: gcc/ada/adaint.c +=================================================================== +--- gcc/ada/adaint.c.orig 2008-01-13 22:19:26.000000000 +0100 ++++ gcc/ada/adaint.c 2008-01-29 11:56:06.614450462 +0100 +@@ -2852,35 +2852,6 @@ + } + #endif + +-#if defined (CROSS_DIRECTORY_STRUCTURE) \ +- || (! ((defined (sparc) || defined (i386)) && defined (sun) \ +- && defined (__SVR4)) \ +- && ! (defined (linux) && (defined (i386) || defined (__x86_64__))) \ +- && ! (defined (linux) && defined (__ia64__)) \ +- && ! defined (__FreeBSD__) \ +- && ! defined (__hpux__) \ +- && ! defined (__APPLE__) \ +- && ! defined (_AIX) \ +- && ! (defined (__alpha__) && defined (__osf__)) \ +- && ! defined (VMS) \ +- && ! defined (__MINGW32__) \ +- && ! (defined (__mips) && defined (__sgi))) +- +-/* Dummy function to satisfy g-trasym.o. See the preprocessor conditional +- just above for a list of native platforms that provide a non-dummy +- version of this procedure in libaddr2line.a. */ +- +-void +-convert_addresses (const char *file_name ATTRIBUTE_UNUSED, +- void *addrs ATTRIBUTE_UNUSED, +- int n_addr ATTRIBUTE_UNUSED, +- void *buf ATTRIBUTE_UNUSED, +- int *len ATTRIBUTE_UNUSED) +-{ +- *len = 0; +-} +-#endif +- + #if defined (_WIN32) + int __gnat_argument_needs_quote = 1; + #else +Index: gcc/ada/convert_addresses.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ gcc/ada/convert_addresses.c 2008-01-29 11:56:06.614450462 +0100 +@@ -0,0 +1,157 @@ ++/* ++ Copyright (C) 1999 by Juergen Pfeifer <juergen.pfeifer@gmx.net> ++ Ada for Linux Team (ALT) ++ ++ Permission is hereby granted, free of charge, to any person obtaining a ++ copy of this software and associated documentation files (the ++ "Software"), to deal in the Software without restriction, including ++ without limitation the rights to use, copy, modify, merge, publish, ++ distribute, distribute with modifications, sublicense, and/or sell ++ copies of the Software, and to permit persons to whom the Software is ++ furnished to do so, subject to the following conditions: ++ ++ The above copyright notice and this permission notice shall be included ++ in all copies or substantial portions of the Software. ++ ++ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS ++ OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF ++ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. ++ IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, ++ DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR ++ OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR ++ THE USE OR OTHER DEALINGS IN THE SOFTWARE. ++ ++ Except as contained in this notice, the name(s) of the above copyright ++ holders shall not be used in advertising or otherwise to promote the ++ sale, use or other dealings in this Software without prior written ++ authorization. ++*/ ++#include <sys/types.h> ++#include <stdlib.h> ++#include <stdio.h> ++#include <unistd.h> ++#include <string.h> ++#include <signal.h> ++ ++#define STDIN_FILENO 0 ++#define STDOUT_FILENO 1 ++#define MAX_LINE 1024 ++ ++#define CLOSE1 close(fd1[0]); close(fd1[1]) ++#define CLOSE2 close(fd2[0]); close(fd2[1]) ++#define RESTSIG sigaction(SIGPIPE,&oact,NULL) ++ ++void convert_addresses ++( void* addrs[], ++ int n_addr, ++ char* buf, ++ int* len) ++{ ++ int max_len = *len; ++ pid_t pid = getpid(); ++ pid_t child; ++ ++ struct sigaction act, oact; ++ ++ int fd1[2], fd2[2]; ++ char exe_name[128]; ++ ++ *buf = 0; *len = 0; ++ /* Thanx to the /proc filesystem we can very easily reference our own ++ executable image:-)*/ ++ snprintf(exe_name,sizeof(exe_name),"--exe=/proc/%ld/exe", (long)pid); ++ ++ act.sa_handler = SIG_IGN; ++ sigemptyset(&act.sa_mask); ++ act.sa_flags = 0; ++ if (sigaction(SIGPIPE,&act,&oact) < 0) ++ return; ++ ++ if (pipe(fd1) >= 0) { ++ if (pipe(fd2)>=0) { ++ if ((child = fork()) < 0) { ++ CLOSE1; CLOSE2; RESTSIG; ++ return; ++ } ++ else { ++ if (0==child) { ++ close(fd1[1]); ++ close(fd2[0]); ++ if (fd1[0] != STDIN_FILENO) { ++ if (dup2(fd1[0],STDIN_FILENO) != STDIN_FILENO) { ++ CLOSE1; CLOSE2; ++ } ++ close(fd1[0]); ++ } ++ if (fd2[1] != STDOUT_FILENO) { ++ if (dup2(fd2[1],STDOUT_FILENO) != STDOUT_FILENO) { ++ CLOSE1; CLOSE2; ++ } ++ close(fd2[1]); ++ } ++ { ++ /* As pointed out by Florian Weimer to me, it is a ++ security threat to call the script with a user defined ++ environment and using the path. That would be Trojans ++ pleasure. Therefore we use the absolute path to ++ addr2line and an empty environment. That should be ++ safe. ++ */ ++ char *const argv[] = { "addr2line", ++ exe_name, ++ "--demangle=gnat", ++ "--functions", ++ "--basenames", ++ NULL }; ++ char *const envp[] = { NULL }; ++ if (execve("/usr/bin/addr2line", argv, envp) < 0) { ++ CLOSE1; CLOSE2; ++ } ++ } ++ } ++ else { ++ int i, n; ++ char hex[16]; ++ char line[MAX_LINE + 1]; ++ char *p; ++ char *s = buf; ++ ++ /* Parent context */ ++ close(fd1[0]); ++ close(fd2[1]); ++ ++ for(i=0; i < n_addr; i++) { ++ snprintf(hex,sizeof(hex),"%p\n",addrs[i]); ++ write(fd1[1],hex,strlen(hex)); ++ n = read(fd2[0],line,MAX_LINE); ++ if (n<=0) ++ break; ++ line[n]=0; ++ /* We have approx. 16 additional chars for "%p in " clause. ++ We use this info to prevent a buffer overrun. ++ */ ++ if (n + 16 + (*len) > max_len) ++ break; ++ p = strchr(line,'\n'); ++ if (p) { ++ if (*(p+1)) { ++ *p = 0; ++ *len += snprintf(s, (max_len - (*len)), "%p in %s at %s",addrs[i], line, p+1); ++ } ++ else { ++ *len += snprintf(s, (max_len - (*len)), "%p at %s",addrs[i], line); ++ } ++ s = buf + (*len); ++ } ++ } ++ close(fd1[1]); ++ close(fd2[0]); ++ } ++ } ++ } ++ else { ++ CLOSE1; ++ } ++ } ++ RESTSIG; ++} +Index: gcc/ada/g-trasym.adb +=================================================================== +--- gcc/ada/g-trasym.adb.orig 2007-04-11 10:18:15.000000000 +0200 ++++ gcc/ada/g-trasym.adb 2008-01-29 11:56:06.614450462 +0100 +@@ -32,16 +32,16 @@ + ------------------------------------------------------------------------------ + + -- Run-time symbolic traceback support ++-- This file has been modified by Juergen Pfeifer (31-Dec-1999) for ++-- the purpose to support the Ada for Linux Team implementation of ++-- convert_addresses. This implementation has the advantage to run ++-- on the binutils as they are deployed on Linux. + + with System.Soft_Links; + with Ada.Exceptions.Traceback; use Ada.Exceptions.Traceback; + + package body GNAT.Traceback.Symbolic is + +- pragma Linker_Options ("-laddr2line"); +- pragma Linker_Options ("-lbfd"); +- pragma Linker_Options ("-liberty"); +- + package TSL renames System.Soft_Links; + + -- To perform the raw addresses to symbolic form translation we rely on a +@@ -79,9 +79,13 @@ + -- raw addresses provided in ADDRS, looked up in debug information from + -- FILENAME. LEN is filled with the result length. + -- +- -- This procedure is provided by libaddr2line on targets that support +- -- it. A dummy version is in adaint.c for other targets so that build +- -- of shared libraries doesn't generate unresolved symbols. ++ -- This is the ALT Linux specific version adapted to the binutils ++ -- deployed with most Linuxes. These binutils already have an ++ -- addr2line tool that demangles Ada symbolic names, but there are ++ -- version dependant variants for the option names. Therefore our ++ -- implementation spawns a shell script that does normalization of ++ -- the option and then executes addr2line and communicates with it ++ -- through a bidirectional pipe. + -- + -- Note that this procedure is *not* thread-safe. + +@@ -93,8 +97,9 @@ + (c_exename : System.Address) return System.Address; + pragma Import (C, locate_exec_on_path, "__gnat_locate_exec_on_path"); + +- Res : String (1 .. 256 * Traceback'Length); +- Len : Integer; ++ B_Size : constant Integer := 256 * Traceback'Length; ++ Len : Integer := B_Size; ++ Res : String (1 .. B_Size); + + use type System.Address; + |