[Buildroot] kernel image size depends on toolchain? -Solved-
Andreas.Kuehn at gin.de
Wed Jun 11 15:08:24 UTC 2008
Created: Wed Jun 11 16:51:42 2008
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1402212 Bytes = 1369.35 kB = 1.34 MB <--<< Groovy !
You were right, that patch was missing.
Really great support.
Peter Korsgaard wrote:
>>>>>> "Andreas" == Andreas Kuehn <Andreas.Kuehn at gin.de> writes:
> Andreas> Right from the .config file....
> Andreas> BR2_BINUTILS_VERSION="2.18"
> Andreas> BR2_EXTRA_BINUTILS_CONFIG_OPTIONS=""
> Andreas> I suppose version 2.18 is the "old" version? Meanwhile, I
> Andreas> changed to version 220.127.116.11.1 and did a complete rebuild
> Andreas> with a well known result:
> Andreas> Image Type: ARM Linux Kernel Image (uncompressed)
> Andreas> Data Size: 4528100 Bytes = 4421.97 kB = 4.32 MB
> Andreas> I don't know where that commit you mentioned has gone to
> Andreas> (where does that 1e621a8e3752367d4aae78a8ab00a18fb2793f34
> Andreas> belong to). Is it the kernel tree or the binutils and
> Andreas> finally which version?
> It's from the kernel git tree. It's a simple oneliner, you could maybe
> patch it by hand in your Linux checkout:
> diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> index fa4ea9f..6c2d539 100644
> --- a/arch/arm/Makefile
> +++ b/arch/arm/Makefile
> @@ -12,7 +12,7 @@
> LDFLAGS_vmlinux :=-p --no-undefined -X
> CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
> -OBJCOPYFLAGS :=-O binary -R .note -R .comment -S
> +OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
> GZFLAGS :=-9
> #CFLAGS +=-pipe
> # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
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