* kbuild - hostprogs not seeing CONFIG_FOO?
@ 2009-12-04 18:07 Alex Chiang
2009-12-04 18:28 ` Randy Dunlap
0 siblings, 1 reply; 3+ messages in thread
From: Alex Chiang @ 2009-12-04 18:07 UTC (permalink / raw)
To: linux-kernel; +Cc: sam, mmarek
I'm hoping someone can help me understand this because I don't
have the Makefile-fu to figure out what's going on.
I'm trying to patch a helper program: Documentation/vm/page-types.c
The interesting part of the patch is this:
+enum pageflags {
+ PG_locked, /* Page is locked. Don't touch. */
+ PG_error,
+ PG_referenced,
+ PG_uptodate,
+ PG_dirty,
+ PG_lru,
+ PG_active,
+ PG_slab,
+ PG_owner_priv_1, /* Owner use. If pagecache, fs may use*/
+ PG_arch_1,
+ PG_reserved,
+ PG_private, /* If pagecache, has fs-private data */
+ PG_private_2, /* If pagecache, has fs aux data */
+ PG_writeback, /* Page is under writeback */
+#ifdef CONFIG_PAGEFLAGS_EXTENDED
+ PG_head, /* A head page */
+ PG_tail, /* A tail page */
+#else
+ PG_compound, /* A compound page */
+#endif
+ PG_swapcache, /* Swap page: swp_entry_t in private */
+ PG_mappedtodisk, /* Has blocks allocated on-disk */
+ PG_reclaim, /* To be reclaimed asap */
+ PG_buddy, /* Page is free, on buddy lists */
+ PG_swapbacked, /* Page is backed by RAM/swap */
+ PG_unevictable, /* Page is "unevictable" */
+#ifdef CONFIG_MMU
+ PG_mlocked, /* Page is vma mlocked */
+#endif
+#ifdef CONFIG_ARCH_USES_PG_UNCACHED
+ PG_uncached, /* Page has been mapped as uncached */
+#endif
+#ifdef CONFIG_MEMORY_FAILURE
+ PG_hwpoison, /* hardware poisoned page. Don't touch */
+#endif
+ __NR_PAGEFLAGS,
+};
The #ifdefs are what I care about. I want to build this helper
program with the same config that I build the kernel so it can
accurately describe page flags.
src/ia64 # grep CONFIG_PAGEFLAGS_EXTENDED .config
CONFIG_PAGEFLAGS_EXTENDED=y
src/ia64 # grep CONFIG_PAGEFLAGS_EXTENDED include/generated/autoconf.h
#define CONFIG_PAGEFLAGS_EXTENDED 1
src/ia64 # grep CONFIG_PAGEFLAGS_EXTENDED include/config/auto.conf
CONFIG_PAGEFLAGS_EXTENDED=y
But when I build, it doesn't seem to be getting those config
values. I determined this with a test case using the binary.
As far as I can tell, hostprogs *should* be getting all the same
stuff as the rest of the tree when building, but in my case, it's
clearly not.
Operator error? Something else?
Thanks,
/ac
coffee0:/usr/local/src/ia64 # make V=1 Documentation/vm/
make -f scripts/Makefile.build obj=arch/ia64/kernel include/generated/nr-irqs.h
make[1]: `include/generated/nr-irqs.h' is up to date.
rm -f include/config/kernel.release
echo 2.6.32-rc7-mm1 > include/config/kernel.release
set -e; : ' CHK include/linux/version.h'; mkdir -p include/linux/; (echo \#define LINUX_VERSION_CODE 132640; echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) < /usr/local/src/ia64/Makefile > include/linux/version.h.tmp; if [ -r include/linux/version.h ] && cmp -s include/linux/version.h include/linux/version.h.tmp; then rm -f include/linux/version.h.tmp; else : ' UPD include/linux/version.h'; mv -f include/linux/version.h.tmp include/linux/version.h; fi
set -e; : ' CHK include/generated/utsrelease.h'; mkdir -p include/generated/; if [ `echo -n "2.6.32-rc7-mm1" | wc -c ` -gt 64 ]; then echo '"2.6.32-rc7-mm1" exceeds 64 characters' >&2; exit 1; fi; (echo \#define UTS_RELEASE \"2.6.32-rc7-mm1\";) < include/config/kernel.release > include/generated/utsrelease.h.tmp; if [ -r include/generated/utsrelease.h ] && cmp -s include/generated/utsrelease.h include/generated/utsrelease.h.tmp; then rm -f include/generated/utsrelease.h.tmp; else : ' UPD include/generated/utsrelease.h'; mv -f include/generated/utsrelease.h.tmp include/generated/utsrelease.h; fi
mkdir -p .tmp_versions
make -f scripts/Makefile.build obj=scripts/basic
make -f scripts/Makefile.build obj=.
mkdir -p kernel/
mkdir -p arch/ia64/kernel/
make -f scripts/Makefile.build obj=. missing-syscalls
/bin/sh scripts/checksyscalls.sh gcc -Wp,-MD,./.missing-syscalls.d -nostdinc -isystem /usr/lib/gcc/ia64-suse-linux/4.3/include -I/usr/local/src/ia64/arch/ia64/include -Iinclude -include include/generated/autoconf.h -D__KERNEL__ -DHAVE_WORKING_TEXT_ALIGN -DHAVE_MODEL_SMALL_ATTRIBUTE -DHAVE_SERIALIZE_DIRECTIVE -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -Os -pipe -ffixed-r13 -mfixed-range=f12-f15,f32-f127 -falign-functions=32 -frename-registers -fno-optimize-sibling-calls -fno-stack-protector -fomit-frame-pointer -g -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -mconstant-gp -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(missing_syscalls)" -D"KBUILD_MODNAME=KBUILD_STR(missing_syscalls)" -D"DEBUG_HASH=8" -D"DEBUG_HASH2=54"
<stdin>:1519:2: warning: #warning syscall perf_event_open not implemented
<stdin>:1523:2: warning: #warning syscall recvmmsg not implemented
<stdin>:1527:2: warning: #warning syscall fanotify_init not implemented
<stdin>:1531:2: warning: #warning syscall fanotify_mark not implemented
make -f scripts/Makefile.build obj=scripts
make -f scripts/Makefile.build obj=scripts/genksyms
make -f scripts/Makefile.build obj=scripts/mod
mkdir -p .tmp_versions
make KBUILD_MODULES=1 \
-f scripts/Makefile.build obj=Documentation/vm
(cat /dev/null; ) > Documentation/vm/modules.order
gcc -Wp,-MD,Documentation/vm/.page-types.d -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -o Documentation/vm/page-types Documentation/vm/page-types.c
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: kbuild - hostprogs not seeing CONFIG_FOO?
2009-12-04 18:07 kbuild - hostprogs not seeing CONFIG_FOO? Alex Chiang
@ 2009-12-04 18:28 ` Randy Dunlap
2009-12-04 18:51 ` Alex Chiang
0 siblings, 1 reply; 3+ messages in thread
From: Randy Dunlap @ 2009-12-04 18:28 UTC (permalink / raw)
To: Alex Chiang; +Cc: linux-kernel, sam, mmarek
On Fri, 4 Dec 2009 11:07:49 -0700 Alex Chiang wrote:
> I'm hoping someone can help me understand this because I don't
> have the Makefile-fu to figure out what's going on.
>
> I'm trying to patch a helper program: Documentation/vm/page-types.c
>
> The interesting part of the patch is this:
(yep)
> +enum pageflags {
> + PG_locked, /* Page is locked. Don't touch. */
> + PG_error,
> + PG_referenced,
> + PG_uptodate,
> + PG_dirty,
> + PG_lru,
> + PG_active,
> + PG_slab,
> + PG_owner_priv_1, /* Owner use. If pagecache, fs may use*/
> + PG_arch_1,
> + PG_reserved,
> + PG_private, /* If pagecache, has fs-private data */
> + PG_private_2, /* If pagecache, has fs aux data */
> + PG_writeback, /* Page is under writeback */
> +#ifdef CONFIG_PAGEFLAGS_EXTENDED
> + PG_head, /* A head page */
> + PG_tail, /* A tail page */
> +#else
> + PG_compound, /* A compound page */
> +#endif
> + PG_swapcache, /* Swap page: swp_entry_t in private */
> + PG_mappedtodisk, /* Has blocks allocated on-disk */
> + PG_reclaim, /* To be reclaimed asap */
> + PG_buddy, /* Page is free, on buddy lists */
> + PG_swapbacked, /* Page is backed by RAM/swap */
> + PG_unevictable, /* Page is "unevictable" */
> +#ifdef CONFIG_MMU
> + PG_mlocked, /* Page is vma mlocked */
> +#endif
> +#ifdef CONFIG_ARCH_USES_PG_UNCACHED
> + PG_uncached, /* Page has been mapped as uncached */
> +#endif
> +#ifdef CONFIG_MEMORY_FAILURE
> + PG_hwpoison, /* hardware poisoned page. Don't touch */
> +#endif
> + __NR_PAGEFLAGS,
> +};
>
> The #ifdefs are what I care about. I want to build this helper
> program with the same config that I build the kernel so it can
> accurately describe page flags.
>
> src/ia64 # grep CONFIG_PAGEFLAGS_EXTENDED .config
> CONFIG_PAGEFLAGS_EXTENDED=y
>
> src/ia64 # grep CONFIG_PAGEFLAGS_EXTENDED include/generated/autoconf.h
> #define CONFIG_PAGEFLAGS_EXTENDED 1
>
> src/ia64 # grep CONFIG_PAGEFLAGS_EXTENDED include/config/auto.conf
> CONFIG_PAGEFLAGS_EXTENDED=y
>
> But when I build, it doesn't seem to be getting those config
> values. I determined this with a test case using the binary.
>
> As far as I can tell, hostprogs *should* be getting all the same
> stuff as the rest of the tree when building, but in my case, it's
> clearly not.
>
> Operator error? Something else?
>
> Thanks,
> /ac
>
>
> coffee0:/usr/local/src/ia64 # make V=1 Documentation/vm/
> make -f scripts/Makefile.build obj=arch/ia64/kernel include/generated/nr-irqs.h
> make[1]: `include/generated/nr-irqs.h' is up to date.
> rm -f include/config/kernel.release
> echo 2.6.32-rc7-mm1 > include/config/kernel.release
> set -e; : ' CHK include/linux/version.h'; mkdir -p include/linux/; (echo \#define LINUX_VERSION_CODE 132640; echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) < /usr/local/src/ia64/Makefile > include/linux/version.h.tmp; if [ -r include/linux/version.h ] && cmp -s include/linux/version.h include/linux/version.h.tmp; then rm -f include/linux/version.h.tmp; else : ' UPD include/linux/version.h'; mv -f include/linux/version.h.tmp include/linux/version.h; fi
> set -e; : ' CHK include/generated/utsrelease.h'; mkdir -p include/generated/; if [ `echo -n "2.6.32-rc7-mm1" | wc -c ` -gt 64 ]; then echo '"2.6.32-rc7-mm1" exceeds 64 characters' >&2; exit 1; fi; (echo \#define UTS_RELEASE \"2.6.32-rc7-mm1\";) < include/config/kernel.release > include/generated/utsrelease.h.tmp; if [ -r include/generated/utsrelease.h ] && cmp -s include/generated/utsrelease.h include/generated/utsrelease.h.tmp; then rm -f include/generated/utsrelease.h.tmp; else : ' UPD include/generated/utsrelease.h'; mv -f include/generated/utsrelease.h.tmp include/generated/utsrelease.h; fi
> mkdir -p .tmp_versions
> make -f scripts/Makefile.build obj=scripts/basic
> make -f scripts/Makefile.build obj=.
> mkdir -p kernel/
> mkdir -p arch/ia64/kernel/
> make -f scripts/Makefile.build obj=. missing-syscalls
> /bin/sh scripts/checksyscalls.sh gcc -Wp,-MD,./.missing-syscalls.d -nostdinc -isystem /usr/lib/gcc/ia64-suse-linux/4.3/include -I/usr/local/src/ia64/arch/ia64/include -Iinclude -include include/generated/autoconf.h -D__KERNEL__ -DHAVE_WORKING_TEXT_ALIGN -DHAVE_MODEL_SMALL_ATTRIBUTE -DHAVE_SERIALIZE_DIRECTIVE -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -Os -pipe -ffixed-r13 -mfixed-range=f12-f15,f32-f127 -falign-functions=32 -frename-registers -fno-optimize-sibling-calls -fno-stack-protector -fomit-frame-pointer -g -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -mconstant-gp -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(missing_syscalls)" -D"KBUILD_MODNAME=KBUILD_STR(missing_syscalls)" -D"DEBUG_HASH=8" -D"DEBUG_HASH2=54"
Above includes include/generated/autoconf.h but page-types does not.
> <stdin>:1519:2: warning: #warning syscall perf_event_open not implemented
> <stdin>:1523:2: warning: #warning syscall recvmmsg not implemented
> <stdin>:1527:2: warning: #warning syscall fanotify_init not implemented
> <stdin>:1531:2: warning: #warning syscall fanotify_mark not implemented
> make -f scripts/Makefile.build obj=scripts
> make -f scripts/Makefile.build obj=scripts/genksyms
> make -f scripts/Makefile.build obj=scripts/mod
> mkdir -p .tmp_versions
> make KBUILD_MODULES=1 \
> -f scripts/Makefile.build obj=Documentation/vm
> (cat /dev/null; ) > Documentation/vm/modules.order
> gcc -Wp,-MD,Documentation/vm/.page-types.d -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -o Documentation/vm/page-types Documentation/vm/page-types.c
>
> --
Try adding in Documentation/vm/Makefile something like:
HOSTCFLAGS_page-types.o += -I$(objtree)/usr/include
or
HOSTCFLAGS_page-types.o += $(LINUXINCLUDE)
---
~Randy
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: kbuild - hostprogs not seeing CONFIG_FOO?
2009-12-04 18:28 ` Randy Dunlap
@ 2009-12-04 18:51 ` Alex Chiang
0 siblings, 0 replies; 3+ messages in thread
From: Alex Chiang @ 2009-12-04 18:51 UTC (permalink / raw)
To: Randy Dunlap; +Cc: linux-kernel, sam, mmarek
* Randy Dunlap <randy.dunlap@oracle.com>:
> On Fri, 4 Dec 2009 11:07:49 -0700 Alex Chiang wrote:
>
> > <stdin>:1519:2: warning: #warning syscall perf_event_open not implemented
> > <stdin>:1523:2: warning: #warning syscall recvmmsg not implemented
> > <stdin>:1527:2: warning: #warning syscall fanotify_init not implemented
> > <stdin>:1531:2: warning: #warning syscall fanotify_mark not implemented
> > make -f scripts/Makefile.build obj=scripts
> > make -f scripts/Makefile.build obj=scripts/genksyms
> > make -f scripts/Makefile.build obj=scripts/mod
> > mkdir -p .tmp_versions
> > make KBUILD_MODULES=1 \
> > -f scripts/Makefile.build obj=Documentation/vm
> > (cat /dev/null; ) > Documentation/vm/modules.order
> > gcc -Wp,-MD,Documentation/vm/.page-types.d -Wall
> > -Wmissing-prototypes -Wstrict-prototypes -O2
> > -fomit-frame-pointer -o Documentation/vm/page-types
> > Documentation/vm/page-types.c
>
> Try adding in Documentation/vm/Makefile something like:
>
> HOSTCFLAGS_page-types.o += -I$(objtree)/usr/include
>
> or
>
> HOSTCFLAGS_page-types.o += $(LINUXINCLUDE)
Thanks Randy, that got it.
/ac
^ permalink raw reply [flat|nested] 3+ messages in thread
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2009-12-04 18:07 kbuild - hostprogs not seeing CONFIG_FOO? Alex Chiang
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