set target milestone.

Created attachment 7396 [details]
sal/osl/unx/backtrace.c - add IRIX bits for backtracing

One problem with this patch is due to a dodgy gcc on IRIX.
Using a sample program, which calls a few functions (to make things
interesting) and then aborts, I get the following results:

% /usr/local/gcc-2.95.3/bin/gcc -v
Reading specs from
/usr/local/gcc-2.95.3/lib/gcc-lib/mips-sgi-irix6.5/2.95.3/specs
gcc version 2.95.3 20010315 (release)
% /usr/local/gcc-2.95.3/bin/gcc -o stacktrace stack.c
test_stacktrace.c -lexc
% ./stacktrace
__exc_unwind: Error: pc(0x100013d8) not in any .debug_frame table
 0x000000000001 <unknown function>
% /usr/local/gcc-2.95.3/bin/gcc -g -o stacktrace stack.c
test_stacktrace.c -lexc
% ./stacktrace
 0x0000100014bc backtrace
 0x000010001504 cfunc
 0x00001000154c bfunc
 0x00001000159c afunc
 0x000010001290 main

% gcc -v
Reading specs from /usr/freeware/lib/gcc-lib/mips-sgi-irix6.5/3.0.4/specs
Configured with: ../configure --prefix=/usr/freeware
--enable-version-specific-runtime-libs --disable-shared
--enable-threads --enable-haifa
Thread model: single
gcc version 3.0.4
% gcc -o stacktrace stack.c test_stacktrace.c -lexc
% ./stacktrace
__exc_unwind: Error: pc(0x10001498) not in any .debug_frame table
% gcc -g -o stacktrace stack.c test_stacktrace.c -lexc
% ./stacktrace
 0x000010001578 backtrace
 0x0000100015c0 cfunc
 0x000010001608 bfunc
 0x000010001658 afunc
 0x000010001320 main

% cc -version
MIPSpro Compilers: Version 7.3.1.2m
% cc -o stacktrace stack.c test_stacktrace.c -lexc
stack.c:
test_stacktrace.c:
% ./stacktrace
 0x000010000f94 backtrace
 0x000010000fd4 cfunc
 0x000010001014 bfunc
 0x00001000105c afunc
 0x000010000e50 main
% cc -g -o stacktrace stack.c test_stacktrace.c -lexc
stack.c:
test_stacktrace.c:
% ./stacktrace
 0x000010000fb4 backtrace
 0x000010000ff4 cfunc
 0x000010001034 bfunc
 0x00001000107c afunc
 0x000010000e70 main

% cc -Ofast -o stacktrace stack.c test_stacktrace.c -lexc
stack.c:
test_stacktrace.c:
% ./stacktrace
 0x000010001688 backtrace
 0x0000100010e0 main

Created attachment 7397 [details]
same as above, without using printing the final (invalid) frame

Whoops, forgot to say, gcc on IRIX does not support -rdynamic, which 
presumably would help get the symbols even without -g.

Created attachment 7568 [details]
sal/osl/unx/backtrace.c - with appropriate headers

Created attachment 7570 [details]
sal/util/makefile - link in extra bits for IRIX backtrace

the back trace code compiles and links now... :-)

committed to ooo11rc2.

verified.

close issue.

We have code in backtrace.c for IRIX, so we should compile it

sal/osl/unx/makefile.mk:
.IF "$(OS)"=="SOLARIS" || "$(OS)"=="FREEBSD" || "$(OS)"=="NETBSD" ||
"$(OS)$(CPU)"=="LINUXS"
SLOFILES += $(SLO)$/backtrace.obj
OBJFILES += $(OBJ)$/backtrace.obj
.ENDIF

per issue 106845 sb removed the partial irix port, so this doesn't make sense in
isolation anymore106845

closing