gcc-3.3.1-hammer vs current pre
Hi all...
One good and one bad news...
The good:
Current 22-pre5 builds at -O1 level. I always thought it was mandatory to build at -O2...At least it can be useful to detect optimizer bugs...
And the bad. The current gcc in mandrakke cooker miscompiles the kernel. Current 2.4.22-pre5 (plain, even a comma touched) works if built with -O1 and breaks with -O2 (does not pass init launch). As it is based on the hammer branch from SuSE, I think this also affects SuSE developers, if not corrected in their tree yet.
Is there any way to set compile flags for _subsystems_ ? To start a search on what breaks at -O2.
[OT] (off-topic, not Operacion Triunfo -bleh- ...)
BTW, is anybody from Mandrake reading this ? The cooker list looks dead since a week or so. If someone reads this, plz mail me in private.
TIA
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J.A. Magallon <[email protected]> \ Software is like sex: werewolf.able.es \ It's better when it's free Mandrake Linux release 9.2 (Cooker) for i586 Linux 2.4.22-pre2-jam1 (gcc 3.3 (Mandrake Linux 9.2 3.3-2mdk))
Quoted 4 lines · J.A. Magallon
...
Is there any way to set compile flags for _subsystems_ ? To start a search on what breaks at -O2.
...
It's only possible on a per-directory basis (excluding subdirectories).
Read section 7.6 in Documentation/kbuild/makefiles.txt .
drivers/acpi/Makefile in 2.4.22-pre contains an example (the ACPI code is compiled with -Os).
Quoted 1 line
TIA
cu
Adrian
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