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[Qemu-devel] Re: [PATCH 1/2] Remove CFLAGS parameter in cc-option
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From: |
Paolo Bonzini |
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Subject: |
[Qemu-devel] Re: [PATCH 1/2] Remove CFLAGS parameter in cc-option |
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Date: |
Mon, 31 Aug 2009 08:54:14 +0200 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.1) Gecko/20090814 Fedora/3.0-2.6.b3.fc11 Lightning/1.0pre Thunderbird/3.0b3 |
On 08/31/2009 12:48 AM, Juan Quintela wrote:
With cc-option we are testing if gcc just accept a particular option, we don't
need CFLAGS at all.
ACK, however these should IMO be moved to configure. This:
CFLAGS += $(call cc-option, -fno-stack-protector,"")
is likely responsible of at least 20% system time to the compilation
(because one normal compilation costs three forks for gcc+cc1+as, and
cc-option costs two more for gcc+cc1).
Paolo