On 2016-01-25 12:33, Kieran Bingham wrote: > This is functional on a make -j1 build, however at -j2 and above (from a > clean build), kbuild attempts to generate my file before > include/generated/timeconst.h resulting in the following error: > > --- 8< --- > GEN scripts/gdb/linux/constants.py > In file included from sources/linux/include/linux/ktime.h:25:0, > from /linux/include/linux/rcupdate.h:47, > from /linux/include/linux/rbtree.h:34, > from /linux/include/linux/mm_types.h:9, > from /linux/arch/x86/include/asm/pgtable.h:448, > from /linux/scripts/gdb/linux/constants.py.in:16: > sources/linux/include/linux/jiffies.h:10:33: fatal error: > generated/timeconst.h: No such file or directory > --- >8 --- [...] > 2) Move the code that generates this file to /Kbuild. However I don't > like the idea of putting non-essential generator at the top level build You can keep the code in scripts/gdb/..., just move it out of $(always) and have the toplevel Kbuild file call something like $(MAKE) $(obj)=scripts/gdb/linux build_constants > 3) Add #ifndef __GENERATE_CONSTANTS_PY__ across any reference to > generated header files, such as in ktime.h, and define that with my > Preprocessor statement. If you do not need the generated headers, this might be the least evil. We already have the COMPILE_OFFSETS and __GENERATING_BOUNDS_H defines for a similar purpose. Michal -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
