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Re: "break main; run" test


FYI, the release process recommends the following smoke test:

15.7.2 Sanity check the tar ball

Pick a popular machine (Solaris/PPC?) and try the build on that.



$ bunzip2 < gdb-5.2.tar.bz2 | tar xpf -
$ cd gdb-5.2
$ ./configure $ make
...
$ ./gdb/gdb ./gdb/gdb
GNU gdb 5.2
...
(gdb) b main
Breakpoint 1 at 0x80732bc: file main.c, line 734.
(gdb) run
Starting program: /tmp/gdb-5.2/gdb/gdb


Breakpoint 1, main (argc=1, argv=0xbffff8b4) at main.c:734
734       catch_errors (captured_main, &args, "", RETURN_MASK_ALL);
(gdb)  print args
$1 = {argc = 136426532, argv = 0x821b7f0}
(gdb)

Should note that I intend tweaking the doco so that "backtrace", instead of "print args" is used. I suspect that "backtrace" is GDB's second most popular user command (the first is "run") :-)


Andrew


Date: Thu,  8 Jan 2004 22:16:21 -0500 (EST)
From: mec.gnu@mindspring.com (Michael Elizabeth Chastain)


> When people refer to the test of starting gdb on a program, setting a
> breakpoint on "main", and running to that point, is there a particular
> standard test program in mind? "Hello world"? The GDB binary itself?


You are right; it is ambiguous.


Seconded.  Perhaps we should replace that language with something less
ambiguous.


To me, it usually means "the gdb binary itself", since the gdb binary is
a large program and it's guaranteed to exist.  Sometimes it means
"hello world", and sometimes it means "any random program".


It should IMHO preferably be some non-trivially large program, as some
subtle problems don't get expiosed unless GDB needs to deal with
complex debug info structures.  It certainly cannot be a program with
no debug info, since then it's not guaranteed that GDB will know where
to find the symbol `main'.




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