Red Hat Bugzilla – Bug 199887
clisp.spec must set CFLAGS=""
Last modified: 2007-11-30 17:11:38 EST
+++ This bug was initially created as a clone of Bug #199525 +++ "clisp --version" insicates that it has beed built with debugging symbols. this is because clisp configure now respects the environment variable CFLAGS and when it is not set uses "-g -O2" as per GNU standards. please re-configure CLISP with CFLAGS="": CFLAGS="" ./configure .... thanks. -- Additional comment from sds@gnu.org on 2006-07-23 14:17 EST -- (In reply to comment #3) > (In reply to comment #1) > > "clisp --version" insicates that it has beed built with debugging symbols. > > this is because clisp configure now respects the environment variable CFLAGS > > and when it is not set uses "-g -O2" as per GNU standards. > > please re-configure CLISP with CFLAGS="": > > CFLAGS="" ./configure .... > > thanks. > Currently CFLAGS is not set at all in the .spec file. > Could you explain, why unsetting CFLAGS is necessary? when CFLAGS is not set, AC_PROG_CC in autoconf sets it to "-g -O2" which is not what we want here. you must NOT unset CFLAGS, you must SET it to "" (an empty string) like you do for every other gnu package that uses autoconf and which you do not want to distribute with the debug symbols. -- Additional comment from gemi@bluewin.ch on 2006-07-23 17:32 EST -- (In reply to comment #5) > (In reply to comment #3) > > (In reply to comment #1) > > > "clisp --version" insicates that it has beed built with debugging symbols. > > > this is because clisp configure now respects the environment variable CFLAGS > > > and when it is not set uses "-g -O2" as per GNU standards. > > > please re-configure CLISP with CFLAGS="": > > > CFLAGS="" ./configure .... > > > thanks. > > Currently CFLAGS is not set at all in the .spec file. > > Could you explain, why unsetting CFLAGS is necessary? > > when CFLAGS is not set, AC_PROG_CC in autoconf sets it to "-g -O2" > which is not what we want here. > you must NOT unset CFLAGS, > you must SET it to "" (an empty string) > like you do for every other gnu package that uses autoconf > and which you do not want to distribute with the debug symbols. > Could you open a separate bug report on this?
It seems that without setting CFLAGS to "", the flags used are -O2 and -g and with CFLAGS set to "", the flags is set to -O2 only. Given that ALL fedora packages are built with debugging enabled, I don't see why we should disable it.
emacs comes without debugging symbols: gdb /usr/bin/emacs-21.4-x (no debugging symbols found)
The binaries in RPM packages are stripped of course, but a debuginfo package is generated from the the sources and the binaries using the debugging symbols.
I see, so first the executable is built with "-g" and then it is stripped. this is not good for clisp: this prevents disassembling natively compiled functions: > (disassemble #'car) 0x00cfe402 in __kernel_vsyscall () 0x080b8f28 <C_car+0>: push %ebp 0x080b8f29 <C_car+1>: lea 0xfffffffc(%ebx),%eax 0x080b8f2c <C_car+4>: mov %esp,%ebp 0x080b8f2e <C_car+6>: mov %eax,%ebx 0x080b8f30 <C_car+8>: sub $0x8,%esp 0x080b8f33 <C_car+11>: mov (%eax),%eax 0x080b8f35 <C_car+13>: call 0x80b87b4 <car> 0x080b8f3a <C_car+18>: movl $0x1,0x81b0cd8 0x080b8f44 <C_car+28>: mov %eax,0x81b0d00 0x080b8f49 <C_car+33>: leave 0x080b8f4a <C_car+34>: ret (this is with the CLISP compiled with CFLAGS=""). the CLISP RPM print the disassembly for the whole executable, not just the CAR function.
Ok, well, I will push an update with CFLAGS="" soon.