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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2008-02-08 00:03:04 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-04-17 17:40:46 +0200 |
commit | 28d23128814dca9b90f04739b12f967f4248c584 (patch) | |
tree | 13ddc8ea51fcfb5168bab5ec536bc1f11a44888c /arch/x86/mm/srat_64.c | |
parent | x86: bump image header to version 2.08. (diff) | |
download | linux-28d23128814dca9b90f04739b12f967f4248c584.tar.xz linux-28d23128814dca9b90f04739b12f967f4248c584.zip |
x86: reducing debuginfo size by removing unneeded includes
I found it strange that the struct sk_buff definition was found
inside the DWARF debugging sections in the generated object, so I verified
and found that there is no need for the files that bring struct sk_buff
definition into this file and verified also that sk_buff is not brought
in indirectly too, thru other headers.
I went on and removed many other unneeded includes and the end
result is:
[acme@doppio net-2.6]$ l /tmp/sys_ia32.o.before /tmp/sys_ia32.o.after
-rw-rw-r-- 1 acme acme 185240 2008-02-06 19:19 /tmp/sys_ia32.o.after
-rw-rw-r-- 1 acme acme 248328 2008-02-06 19:00 /tmp/sys_ia32.o.before
Almost 64KB only on this object file!
There were no other side effects from this change:
[acme@doppio net-2.6]$ objcopy -j "text" /tmp/sys_ia32.o.before /tmp/text.before
[acme@doppio net-2.6]$ objcopy -j "text" /tmp/sys_ia32.o.after /tmp/text.after
[acme@doppio net-2.6]$ md5sum /tmp/text.before /tmp/text.after
b7ac9b17942add68494e698e4f965d36 /tmp/text.before
b7ac9b17942add68494e698e4f965d36 /tmp/text.after
One of the complaints about using tools such as systemtap is
that one has to install the huge kernel-debuginfo package:
[acme@doppio net-2.6]$ rpm -q --qf "%{size}\n" kernel-rt-debuginfo
471737710
543867594
[acme@doppio net-2.6]$
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/mm/srat_64.c')
0 files changed, 0 insertions, 0 deletions