On Wed, 19 Feb 2014, Faheem Mitha wrote:
Hi,
See http://unix.stackexchange.com/a/115921/4671
I'm trying to backport 3.13 to wheezy, using instructions in the kernel
handbook, namely
http://kernel-handbook.alioth.debian.org/ch-common-tasks.html#s4.2.5.
The main stumbling block seems to be (so far) that gcc 4.8 is required,
indeed hardwired into the build. This seems to have been done by Debian, as I
don't see a reason why Linux itself would require it. This has the effect in
this instance of making this packaging somewhat backport-unfriendly.
Incidentally, the handbook refers to flavors, but does not say what the
possible flavors are. Also, it seems for amd64, one needs to set arch to i386
and flavor to amd64, which is confusing.
Can you advise on how one can configure the build to use 4.7 on wheezy, if
possible? Thanks.
Regards, Faheem
Thanks to some detective work by Anthony DeRobertis, we figured out that
changing the compiler version in debian/config/defines was probably the
way to go. For completeness, the patch I'm currently using against the
Debian sources is below.
I use the following commands to try to build:
fakeroot debian/rules source
followed by
fakeroot make -f debian/rules.gen binary-arch_amd64_none_amd64
I managed to get this working, though I was having some weird failures
before.I had to pop and push my patch against the source before it worked,
which makes no sense.
Regards, Faheem
# HG changeset patch
# Parent 81a16b960a67fa08c9a298bc03c5acfd3d6f7437
diff -r 81a16b960a67 debian/config/amd64/defines
--- a/debian/config/amd64/defines
+++ b/debian/config/amd64/defines
@@ -5,7 +5,7 @@
kernel-arch: x86
[build]
-debug-info: true
+debug-info: false
[image]
bootloaders: grub-pc extlinux lilo
diff -r 81a16b960a67 debian/config/defines
--- a/debian/config/defines
+++ b/debian/config/defines
@@ -23,7 +23,7 @@
sparc
sparc64
x32
-compiler: gcc-4.8
+compiler: gcc-4.7
featuresets:
none
rt
@@ -50,4 +50,4 @@
# initramfs-generators
initramfs-fallback: linux-initramfs-tool
-initramfs-tools: initramfs-tools (>= 0.110~)
+initramfs-tools: initramfs-tools (>= 0.109.1)
diff -r 81a16b960a67 debian/config/i386/defines
--- a/debian/config/i386/defines
+++ b/debian/config/i386/defines
@@ -28,7 +28,7 @@
i386/config.486
[686-pae_build]
-debug-info: true
+debug-info: false
[686-pae_description]
hardware: modern PCs
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