Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

Pull kbuild updates from Michal Marek:

 - EXPORT_SYMBOL for asm source by Al Viro.

   This does bring a regression, because genksyms no longer generates
   checksums for these symbols (CONFIG_MODVERSIONS). Nick Piggin is
   working on a patch to fix this.

   Plus, we are talking about functions like strcpy(), which rarely
   change prototypes.

 - Fixes for PPC fallout of the above by Stephen Rothwell and Nick
   Piggin

 - fixdep speedup by Alexey Dobriyan.

 - preparatory work by Nick Piggin to allow architectures to build with
   -ffunction-sections, -fdata-sections and --gc-sections

 - CONFIG_THIN_ARCHIVES support by Stephen Rothwell

 - fix for filenames with colons in the initramfs source by me.

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (22 commits)
  initramfs: Escape colons in depfile
  ppc: there is no clear_pages to export
  powerpc/64: whitelist unresolved modversions CRCs
  kbuild: -ffunction-sections fix for archs with conflicting sections
  kbuild: add arch specific post-link Makefile
  kbuild: allow archs to select link dead code/data elimination
  kbuild: allow architectures to use thin archives instead of ld -r
  kbuild: Regenerate genksyms lexer
  kbuild: genksyms fix for typeof handling
  fixdep: faster CONFIG_ search
  ia64: move exports to definitions
  sparc32: debride memcpy.S a bit
  [sparc] unify 32bit and 64bit string.h
  sparc: move exports to definitions
  ppc: move exports to definitions
  arm: move exports to definitions
  s390: move exports to definitions
  m68k: move exports to definitions
  alpha: move exports to actual definitions
  x86: move exports to actual definitions
  ...

13 files changed, 36 insertions, 30 deletions

diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index ad5290005ca43..309361e865233 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -9,7 +9,7 @@ ccflags-$(CONFIG_PPC64)	:= $(NO_MINIMAL_TOC)
 CFLAGS_REMOVE_code-patching.o = $(CC_FLAGS_FTRACE)
 CFLAGS_REMOVE_feature-fixups.o = $(CC_FLAGS_FTRACE)
 
-obj-y += string.o alloc.o crtsavres.o ppc_ksyms.o code-patching.o \
+obj-y += string.o alloc.o crtsavres.o code-patching.o \
 	 feature-fixups.o
 
 obj-$(CONFIG_PPC32)	+= div64.o copy_32.o
diff --git a/arch/powerpc/lib/checksum_32.S b/arch/powerpc/lib/checksum_32.S
index aa8214f30c920..ea29a5d677437 100644
--- a/arch/powerpc/lib/checksum_32.S
+++ b/arch/powerpc/lib/checksum_32.S
@@ -17,6 +17,7 @@
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm/ppc_asm.h>
+#include <asm/export.h>
 
 	.text
 
@@ -68,6 +69,7 @@ _GLOBAL(__csum_partial)
 	adde	r5,r5,r0
 5:	addze	r3,r5		/* add in final carry */
 	blr
+EXPORT_SYMBOL(__csum_partial)
 
 /*
  * Computes the checksum of a memory block at src, length len,
@@ -297,3 +299,4 @@ dst_error:
 	.long	41b,dst_error
 	.long	50b,src_error
 	.long	51b,dst_error
+EXPORT_SYMBOL(csum_partial_copy_generic)
diff --git a/arch/powerpc/lib/checksum_64.S b/arch/powerpc/lib/checksum_64.S
index fdec6e613e954..fd9176671f9fb 100644
--- a/arch/powerpc/lib/checksum_64.S
+++ b/arch/powerpc/lib/checksum_64.S
@@ -16,6 +16,7 @@
 #include <asm/processor.h>
 #include <asm/errno.h>
 #include <asm/ppc_asm.h>
+#include <asm/export.h>
 
 /*
  * Computes the checksum of a memory block at buff, length len,
@@ -176,6 +177,7 @@ _GLOBAL(__csum_partial)
 	add	r3,r4,r0
 	srdi	r3,r3,32
 	blr
+EXPORT_SYMBOL(__csum_partial)
 
 
 	.macro srcnr
@@ -430,3 +432,4 @@ dstnr;	stb	r6,0(r4)
 	li	r6,-EFAULT
 	stw	r6,0(r8)
 	blr
+EXPORT_SYMBOL(csum_partial_copy_generic)
diff --git a/arch/powerpc/lib/copy_32.S b/arch/powerpc/lib/copy_32.S
index 99f37f24185ca..40cce33b08d6a 100644
--- a/arch/powerpc/lib/copy_32.S
+++ b/arch/powerpc/lib/copy_32.S
@@ -12,6 +12,7 @@
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm/ppc_asm.h>
+#include <asm/export.h>
 
 #define COPY_16_BYTES		\
 	lwz	r7,4(r4);	\
@@ -92,6 +93,7 @@ _GLOBAL(memset)
 	subf	r6,r0,r6
 	cmplwi	0,r4,0
 	bne	2f	/* Use normal procedure if r4 is not zero */
+EXPORT_SYMBOL(memset)
 _GLOBAL(memset_nocache_branch)
 	b	2f	/* Skip optimised bloc until cache is enabled */
 
@@ -216,6 +218,8 @@ _GLOBAL(memcpy)
 	stbu	r0,1(r6)
 	bdnz	40b
 65:	blr
+EXPORT_SYMBOL(memcpy)
+EXPORT_SYMBOL(memmove)
 
 generic_memcpy:
 	srwi.	r7,r5,3
@@ -507,3 +511,4 @@ _GLOBAL(__copy_tofrom_user)
 	.long	112b,120b
 	.long	114b,120b
 	.text
+EXPORT_SYMBOL(__copy_tofrom_user)
diff --git a/arch/powerpc/lib/copypage_64.S b/arch/powerpc/lib/copypage_64.S
index a3c4dc4defdd8..21367b3a81465 100644
--- a/arch/powerpc/lib/copypage_64.S
+++ b/arch/powerpc/lib/copypage_64.S
@@ -10,6 +10,7 @@
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
+#include <asm/export.h>
 
         .section        ".toc","aw"
 PPC64_CACHES:
@@ -110,3 +111,4 @@ END_FTR_SECTION_IFSET(CPU_FTR_CP_USE_DCBTZ)
 	std	r11,120(r3)
 	std	r12,128(r3)
 	blr
+EXPORT_SYMBOL(copy_page)
diff --git a/arch/powerpc/lib/copyuser_64.S b/arch/powerpc/lib/copyuser_64.S
index 7b22624f332ce..60386b2c99bb3 100644
--- a/arch/powerpc/lib/copyuser_64.S
+++ b/arch/powerpc/lib/copyuser_64.S
@@ -8,6 +8,7 @@
  */
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
+#include <asm/export.h>
 
 #ifdef __BIG_ENDIAN__
 #define sLd sld		/* Shift towards low-numbered address. */
@@ -671,3 +672,4 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 	.llong	89b,100b
 	.llong	90b,100b
 	.llong	91b,100b
+EXPORT_SYMBOL(__copy_tofrom_user)
diff --git a/arch/powerpc/lib/hweight_64.S b/arch/powerpc/lib/hweight_64.S
index 19e66001a4f9d..3de7ac154f24e 100644
--- a/arch/powerpc/lib/hweight_64.S
+++ b/arch/powerpc/lib/hweight_64.S
@@ -19,6 +19,7 @@
  */
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
+#include <asm/export.h>
 
 /* Note: This code relies on -mminimal-toc */
 
@@ -32,6 +33,7 @@ FTR_SECTION_ELSE
 	clrldi	r3,r3,64-8
 	blr
 ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
+EXPORT_SYMBOL(__arch_hweight8)
 
 _GLOBAL(__arch_hweight16)
 BEGIN_FTR_SECTION
@@ -54,6 +56,7 @@ FTR_SECTION_ELSE
 	blr
   ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 50)
 ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
+EXPORT_SYMBOL(__arch_hweight16)
 
 _GLOBAL(__arch_hweight32)
 BEGIN_FTR_SECTION
@@ -79,6 +82,7 @@ FTR_SECTION_ELSE
 	blr
   ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 51)
 ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
+EXPORT_SYMBOL(__arch_hweight32)
 
 _GLOBAL(__arch_hweight64)
 BEGIN_FTR_SECTION
@@ -108,3 +112,4 @@ FTR_SECTION_ELSE
 	blr
   ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 52)
 ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
+EXPORT_SYMBOL(__arch_hweight64)
diff --git a/arch/powerpc/lib/mem_64.S b/arch/powerpc/lib/mem_64.S
index eda7a96161ab6..85fa9869aec58 100644
--- a/arch/powerpc/lib/mem_64.S
+++ b/arch/powerpc/lib/mem_64.S
@@ -11,6 +11,7 @@
 #include <asm/processor.h>
 #include <asm/errno.h>
 #include <asm/ppc_asm.h>
+#include <asm/export.h>
 
 _GLOBAL(memset)
 	neg	r0,r3
@@ -77,6 +78,7 @@ _GLOBAL(memset)
 10:	bflr	31
 	stb	r4,0(r6)
 	blr
+EXPORT_SYMBOL(memset)
 
 _GLOBAL_TOC(memmove)
 	cmplw	0,r3,r4
@@ -119,3 +121,4 @@ _GLOBAL(backwards_memcpy)
 	beq	2b
 	mtctr	r7
 	b	1b
+EXPORT_SYMBOL(memmove)
diff --git a/arch/powerpc/lib/memcmp_64.S b/arch/powerpc/lib/memcmp_64.S
index 8953d2382a653..d75d18b7bd554 100644
--- a/arch/powerpc/lib/memcmp_64.S
+++ b/arch/powerpc/lib/memcmp_64.S
@@ -8,6 +8,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 #include <asm/ppc_asm.h>
+#include <asm/export.h>
 
 #define off8	r6
 #define off16	r7
@@ -231,3 +232,4 @@ _GLOBAL(memcmp)
 	ld	r28,-32(r1)
 	ld	r27,-40(r1)
 	blr
+EXPORT_SYMBOL(memcmp)
diff --git a/arch/powerpc/lib/memcpy_64.S b/arch/powerpc/lib/memcpy_64.S
index 32a06ec395d21..f4d6088e2d539 100644
--- a/arch/powerpc/lib/memcpy_64.S
+++ b/arch/powerpc/lib/memcpy_64.S
@@ -8,6 +8,7 @@
  */
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
+#include <asm/export.h>
 
 	.align	7
 _GLOBAL_TOC(memcpy)
@@ -219,3 +220,4 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 4:	ld	r3,-STACKFRAMESIZE+STK_REG(R31)(r1)	/* return dest pointer */
 	blr
 #endif
+EXPORT_SYMBOL(memcpy)
diff --git a/arch/powerpc/lib/ppc_ksyms.c b/arch/powerpc/lib/ppc_ksyms.c
deleted file mode 100644
index ae69d846a8416..0000000000000
--- a/arch/powerpc/lib/ppc_ksyms.c
+++ /dev/null
@@ -1,29 +0,0 @@
-#include <linux/string.h>
-#include <linux/uaccess.h>
-#include <linux/bitops.h>
-#include <net/checksum.h>
-
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memset);
-EXPORT_SYMBOL(memmove);
-EXPORT_SYMBOL(memcmp);
-EXPORT_SYMBOL(memchr);
-
-EXPORT_SYMBOL(strncpy);
-EXPORT_SYMBOL(strncmp);
-
-#ifndef CONFIG_GENERIC_CSUM
-EXPORT_SYMBOL(__csum_partial);
-EXPORT_SYMBOL(csum_partial_copy_generic);
-#endif
-
-EXPORT_SYMBOL(__copy_tofrom_user);
-EXPORT_SYMBOL(__clear_user);
-EXPORT_SYMBOL(copy_page);
-
-#ifdef CONFIG_PPC64
-EXPORT_SYMBOL(__arch_hweight8);
-EXPORT_SYMBOL(__arch_hweight16);
-EXPORT_SYMBOL(__arch_hweight32);
-EXPORT_SYMBOL(__arch_hweight64);
-#endif
diff --git a/arch/powerpc/lib/string.S b/arch/powerpc/lib/string.S
index beabc68d9a1e4..d13e076035195 100644
--- a/arch/powerpc/lib/string.S
+++ b/arch/powerpc/lib/string.S
@@ -11,6 +11,7 @@
 #include <asm/processor.h>
 #include <asm/errno.h>
 #include <asm/ppc_asm.h>
+#include <asm/export.h>
 
 	.section __ex_table,"a"
 	PPC_LONG_ALIGN
@@ -36,6 +37,7 @@ _GLOBAL(strncpy)
 2:	stbu	r0,1(r6)	/* clear it out if so */
 	bdnz	2b
 	blr
+EXPORT_SYMBOL(strncpy)
 
 _GLOBAL(strncmp)
 	PPC_LCMPI 0,r5,0
@@ -53,6 +55,7 @@ _GLOBAL(strncmp)
 	blr
 2:	li	r3,0
 	blr
+EXPORT_SYMBOL(strncmp)
 
 #ifdef CONFIG_PPC32
 _GLOBAL(memcmp)
@@ -68,6 +71,7 @@ _GLOBAL(memcmp)
 	blr
 2:	li	r3,0
 	blr
+EXPORT_SYMBOL(memcmp)
 #endif
 
 _GLOBAL(memchr)
@@ -82,6 +86,7 @@ _GLOBAL(memchr)
 	beqlr
 2:	li	r3,0
 	blr
+EXPORT_SYMBOL(memchr)
 
 #ifdef CONFIG_PPC32
 _GLOBAL(__clear_user)
@@ -125,4 +130,5 @@ _GLOBAL(__clear_user)
 	PPC_LONG	1b,91b
 	PPC_LONG	8b,92b
 	.text
+EXPORT_SYMBOL(__clear_user)
 #endif
diff --git a/arch/powerpc/lib/string_64.S b/arch/powerpc/lib/string_64.S
index 7bd9549a90a23..57ace356c9490 100644
--- a/arch/powerpc/lib/string_64.S
+++ b/arch/powerpc/lib/string_64.S
@@ -20,6 +20,7 @@
 
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
+#include <asm/export.h>
 
 	.section	".toc","aw"
 PPC64_CACHES:
@@ -200,3 +201,4 @@ err1;	dcbz	r0,r3
 	cmpdi	r4,32
 	blt	.Lshort_clear
 	b	.Lmedium_clear
+EXPORT_SYMBOL(__clear_user)