On May 2, 2008, at 7:13 AM, Josh Boyer wrote:
On Fri, 2008-05-02 at 03:11 -0500, Kumar Gala wrote:
GCC 4.4.x looks to be adding support for generating out-of-line
register
saves/restores based on:
http://gcc.gnu.org/ml/gcc-patches/2008-04/msg01678.html
This breaks the bootwrapper as we'd need to link with libgcc to get
the
implementation of the register save/restores.
We don't link with libgcc anywhere in the kernel. Is this going to
have
similar impacts for building the vmlinux itself?
Not by default. The issue only shows up with -Os. Not sure if we can
build the kernel that way.
What are they actually error messages you see with that version of
GCC,
out of curiosity?
CC fs/qnx4/qnx4.mod.o
arch/powerpc/boot/cuboot-85xx.o: In function `setprop':
/home/galak/git/linux-2.6/arch/powerpc/boot/ops.h:114: undefined
reference to `_restgpr_30_x'
arch/powerpc/boot/cuboot-85xx.o: In function `platform_init':
/home/galak/git/linux-2.6/arch/powerpc/boot/cuboot-85xx.c:60:
undefined reference to `_restgpr_25_x'
arch/powerpc/boot/cuboot-85xx.o: In function `find_node_by_devtype':
/home/galak/git/linux-2.6/arch/powerpc/boot/ops.h:163: undefined
reference to `_restgpr_29_x'
arch/powerpc/boot/cuboot-85xx.o: In function `platform_fixups':
/home/galak/git/linux-2.6/arch/powerpc/boot/cuboot-85xx.c:51:
undefined reference to `_restgpr_25_x'
CC fs/sysv/sysv.mod.o
arch/powerpc/boot/wrapper.a(main.o): In function `setprop':
/home/galak/git/linux-2.6/arch/powerpc/boot/ops.h:114: undefined
reference to `_restgpr_30_x'
arch/powerpc/boot/wrapper.a(main.o): In function `start':
/home/galak/git/linux-2.6/arch/powerpc/boot/main.c:207: undefined
reference to `_restgpr_24_x'
arch/powerpc/boot/wrapper.a(libfdt-wrapper.o): In function `fdt_init':
/home/galak/git/linux-2.6/arch/powerpc/boot/libfdt-wrapper.c:193:
undefined reference to `_restgpr_30_x'
...
/home/galak/git/linux-2.6/arch/powerpc/boot/libfdt/fdt_wip.c:132:
undefined reference to `_restgpr_26_x'
arch/powerpc/boot/wrapper.a(fdt_wip.o): In function `fdt_nop_node':
/home/galak/git/linux-2.6/arch/powerpc/boot/libfdt/fdt_wip.c:144:
undefined reference to `_restgpr_28_x'
arch/powerpc/boot/wrapper.a(fdt_wip.o): In function
`fdt_setprop_inplace':
/home/galak/git/linux-2.6/arch/powerpc/boot/libfdt/fdt_wip.c:73:
undefined reference to `_restgpr_29_x'
make[1]: *** [arch/powerpc/boot/cuImage.mpc8560ads] Error 1
CC lib/libcrc32c.mod.o
CC net/key/af_key.mod.o
- k
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