Bug#378628: gcc-4.0: GCC 4.0.3 miscompile debugging information
Package: gcc-4.0
Version: 4.0.3-1
Severity: normal
Linux kernels compiled with gcc 4.0.3 have invalid debuging information.
More information on this issue and how to verify this error can be
obtained in bug #378621. I'll also have to use gcc 4.0.3 to compile a
kernel with CONFIG_DEBUG_INFO, CONFIG_KPROBES, and optionally
CONFIG_RELAY. You also need the resulting kernel unstripped vmlinux.
Notice that bug 378621 was filed against systemtap but the issue here is
gcc 4.0. GCC 4.1 seems to provide correct/good debug information though.
Besides, although this error was spoted in a kernel compiled with 4.0,
this bug should also affect ordinary user-space debuggers.
-- System Information:
Debian Release: testing/unstable
APT prefers testing
APT policy: (990, 'testing')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15-1-686
Locale: LANG=pt_BR, LC_CTYPE=pt_BR (charmap=ISO-8859-1) (ignored:
LC_ALL set to pt_BR)
Versions of packages gcc-4.0 depends on:
ii binutils 2.16.1cvs20060117-1 The GNU assembler, linker and bina
ii cpp-4.0 4.0.3-1 The GNU C preprocessor
ii gcc-4.0-base 4.0.3-1 The GNU Compiler Collection (base
ii libc6 2.3.6-13 GNU C Library: Shared libraries
ii libgcc1 1:4.1.0-4 GCC support library
Versions of packages gcc-4.0 recommends:
ii libc6-dev 2.3.6-13 GNU C Library: Development Librari
ii libmudflap0-dev 4.0.3-1 GCC mudflap support libraries (dev
-- no debconf information
--
[]s
Tiago Alves Macambira
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