Commit d8f431a0 authored Jun 19, 2017 by David S. Miller

Merge branch 'sparc-Suppressing-version-generation-failed-warnings-in-sparc'



Nagarathnam Muthusamy says:

====================
sparc: Suppressing version generation failed warnings in sparc

Compiling the sparc build of upstream kernel generates lots of warnings
regarding version generation failure for functions defined in assembly files.
This can be easily suppressed by adding those function prototypes to
asm/asm-prototypes.h as in powerpc architecture. The following series of patches
aims to clean the following warnings.

WARNING: EXPORT symbol "atomic_add" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "xor_niagara_4" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "atomic_sub_return" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "atomic64_sub" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "xor_vis_3" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "atomic_xor" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not
be versioned.
WARNING: EXPORT symbol "sun4v_niagara2_getperf" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "atomic64_fetch_xor" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "atomic_fetch_xor" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "__bzero" [vmlinux] version generation failed, symbol will not
be versioned.
WARNING: EXPORT symbol "atomic64_fetch_and" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "raw_copy_to_user" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "__flushw_user" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "sun4v_niagara2_setperf" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "__arch_hweight64" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "__ffs" [vmlinux] version generation failed, symbol will not
be versioned.
WARNING: EXPORT symbol "prom_root_node" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "csum_partial_copy_nocheck" [vmlinux] version generation
failed, symbol will not be versioned.
WARNING: EXPORT symbol "memcpy" [vmlinux] version generation failed, symbol will not
be versioned.
WARNING: EXPORT symbol "atomic_fetch_or" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "xor_vis_4" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "__arch_hweight32" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "ffs" [vmlinux] version generation failed, symbol will not be
versioned.
WARNING: EXPORT symbol "atomic_and" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "xor_niagara_3" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "atomic64_and" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "real_hard_smp_processor_id" [vmlinux] version generation
failed, symbol will not be versioned.
WARNING: EXPORT symbol "clear_user_page" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "memmove" [vmlinux] version generation failed, symbol will not
be versioned.
WARNING: EXPORT symbol "raw_copy_from_user" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "atomic64_add_return" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "__memscan_generic" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "atomic_sub" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "__memscan_zero" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "atomic64_add" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "strncmp" [vmlinux] version generation failed, symbol will not
be versioned.
WARNING: EXPORT symbol "atomic64_fetch_sub" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "xor_vis_5" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "ip_fast_csum" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "test_and_change_bit" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "__arch_hweight8" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "strlen" [vmlinux] version generation failed, symbol will not
be versioned.
WARNING: EXPORT symbol "xor_niagara_2" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "atomic64_fetch_or" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "atomic64_or" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "atomic_fetch_sub" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "atomic_fetch_add" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "clear_bit" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "sun4v_mach_set_watchdog" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "set_bit" [vmlinux] version generation failed, symbol will not
be versioned.
WARNING: EXPORT symbol "__csum_partial_copy_from_user" [vmlinux] version generation
failed, symbol will not be versioned.
WARNING: EXPORT symbol "memset" [vmlinux] version generation failed, symbol will not
be versioned.
WARNING: EXPORT symbol "__csum_partial_copy_to_user" [vmlinux] version generation
failed, symbol will not be versioned.
WARNING: EXPORT symbol "atomic64_fetch_add" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "change_bit" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "__clear_user" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "atomic64_sub_return" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "__arch_hweight16" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "tlb_type" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "VISenter" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "test_and_set_bit" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "xor_niagara_5" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "_clear_page" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "xor_vis_2" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "atomic64_xor" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "test_and_clear_bit" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "csum_partial" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "atomic_fetch_and" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "copy_user_page" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "sun4v_chip_type" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "raw_copy_in_user" [vmlinux] version generation failed, symbol
will not be versioned.
WARNING: EXPORT symbol "memcmp" [vmlinux] version generation failed, symbol will not
be versioned.
WARNING: EXPORT symbol "atomic_add_return" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "atomic_or" [vmlinux] version generation failed, symbol will
not be versioned.
WARNING: EXPORT symbol "atomic64_dec_if_positive" [vmlinux] version generation
failed, symbol will not be versioned.
WARNING: EXPORT symbol "sun4v_niagara_setperf" [vmlinux] version generation failed,
symbol will not be versioned.
WARNING: EXPORT symbol "sun4v_niagara_getperf" [vmlinux] version generation failed,
symbol will not be versioned.

With the fix, all these warnings will be removed during compilation.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

parents 5faab9e0 f5a651f1

arch/sparc/include/asm/asm-prototypes.h

0 → 100644

+24 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved.
		*/

		#include <asm/xor.h>
		#include <asm/checksum.h>
		#include <asm/trap_block.h>
		#include <asm/uaccess.h>
		#include <asm/atomic.h>
		#include <asm/ftrace.h>
		#include <asm/cacheflush.h>
		#include <asm/oplib.h>
		#include <linux/atomic.h>

		void __memscan_zero(void , size_t);
		void __memscan_generic(void , int, size_t);
		void __bzero(void , size_t);
		void VISenter(void); /* Dummy prototype to supress warning */
		#undef memcpy
		#undef memset
		void memcpy(void dest, const void *src, size_t n);
		void memset(void s, int c, size_t n);
		typedef int TItype __attribute__((mode(TI)));
		TItype __multi3(TItype a, TItype b);

arch/sparc/lib/atomic_64.S

+26 −18

Original line number	Diff line number	Diff line
		@@ -62,19 +62,23 @@ ENTRY(atomic_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
		ENDPROC(atomic_fetch_##op); \
		EXPORT_SYMBOL(atomic_fetch_##op);

		#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op)
		ATOMIC_OP(add)
		ATOMIC_OP_RETURN(add)
		ATOMIC_FETCH_OP(add)

		ATOMIC_OPS(add)
		ATOMIC_OPS(sub)
		ATOMIC_OP(sub)
		ATOMIC_OP_RETURN(sub)
		ATOMIC_FETCH_OP(sub)

		#undef ATOMIC_OPS
		#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op)
		ATOMIC_OP(and)
		ATOMIC_FETCH_OP(and)

		ATOMIC_OPS(and)
		ATOMIC_OPS(or)
		ATOMIC_OPS(xor)
		ATOMIC_OP(or)
		ATOMIC_FETCH_OP(or)

		ATOMIC_OP(xor)
		ATOMIC_FETCH_OP(xor)

		#undef ATOMIC_OPS
		#undef ATOMIC_FETCH_OP
		#undef ATOMIC_OP_RETURN
		#undef ATOMIC_OP
		@@ -124,19 +128,23 @@ ENTRY(atomic64_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
		ENDPROC(atomic64_fetch_##op); \
		EXPORT_SYMBOL(atomic64_fetch_##op);

		#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op) ATOMIC64_FETCH_OP(op)
		ATOMIC64_OP(add)
		ATOMIC64_OP_RETURN(add)
		ATOMIC64_FETCH_OP(add)

		ATOMIC64_OP(sub)
		ATOMIC64_OP_RETURN(sub)
		ATOMIC64_FETCH_OP(sub)

		ATOMIC64_OPS(add)
		ATOMIC64_OPS(sub)
		ATOMIC64_OP(and)
		ATOMIC64_FETCH_OP(and)

		#undef ATOMIC64_OPS
		#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_FETCH_OP(op)
		ATOMIC64_OP(or)
		ATOMIC64_FETCH_OP(or)

		ATOMIC64_OPS(and)
		ATOMIC64_OPS(or)
		ATOMIC64_OPS(xor)
		ATOMIC64_OP(xor)
		ATOMIC64_FETCH_OP(xor)

		#undef ATOMIC64_OPS
		#undef ATOMIC64_FETCH_OP
		#undef ATOMIC64_OP_RETURN
		#undef ATOMIC64_OP

arch/sparc/lib/checksum_64.S

+1 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,7 @@ csum_partial_fix_alignment:

		.align 32
		.globl csum_partial
		.type csum_partial,#function
		EXPORT_SYMBOL(csum_partial)
		csum_partial: /* %o0=buff, %o1=len, %o2=sum */
		prefetch [%o0 + 0x000], #n_reads

arch/sparc/lib/csum_copy.S

+1 −0

Original line number	Diff line number	Diff line
		@@ -65,6 +65,7 @@
		add %o5, %o4, %o4

		.globl FUNC_NAME
		.type FUNC_NAME,#function
		EXPORT_SYMBOL(FUNC_NAME)
		FUNC_NAME: /* %o0=src, %o1=dst, %o2=len, %o3=sum */
		LOAD(prefetch, %o0 + 0x000, #n_reads)

arch/sparc/lib/memscan_64.S

+2 −0

Original line number	Diff line number	Diff line
		@@ -14,6 +14,8 @@
		.text
		.align 32
		.globl __memscan_zero, __memscan_generic
		.type __memscan_zero,#function
		.type __memscan_generic,#function
		.globl memscan
		EXPORT_SYMBOL(__memscan_zero)
		EXPORT_SYMBOL(__memscan_generic)