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4f20b7471c
With W=1 on platforms that use the generic gcc library routines
(csky/loongarch/mips/riscv/sh/xtensa):
lib/ashldi3.c:9:19: warning: no previous prototype for '__ashldi3' [-Wmissing-prototypes]
9 | long long notrace __ashldi3(long long u, word_type b)
| ^~~~~~~~~
CC lib/ashrdi3.o
lib/ashrdi3.c:9:19: warning: no previous prototype for '__ashrdi3' [-Wmissing-prototypes]
9 | long long notrace __ashrdi3(long long u, word_type b)
| ^~~~~~~~~
CC lib/cmpdi2.o
lib/cmpdi2.c:9:19: warning: no previous prototype for '__cmpdi2' [-Wmissing-prototypes]
9 | word_type notrace __cmpdi2(long long a, long long b)
| ^~~~~~~~
CC lib/lshrdi3.o
lib/lshrdi3.c:9:19: warning: no previous prototype for '__lshrdi3' [-Wmissing-prototypes]
9 | long long notrace __lshrdi3(long long u, word_type b)
| ^~~~~~~~~
CC lib/muldi3.o
lib/muldi3.c:49:19: warning: no previous prototype for '__muldi3' [-Wmissing-prototypes]
49 | long long notrace __muldi3(long long u, long long v)
| ^~~~~~~~
CC lib/ucmpdi2.o
lib/ucmpdi2.c:8:19: warning: no previous prototype for '__ucmpdi2' [-Wmissing-prototypes]
8 | word_type notrace __ucmpdi2(unsigned long long a, unsigned long long b)
| ^~~~~~~~~
Fix this by adding forward declarations to the common libgcc header
file.
Link: https://lkml.kernel.org/r/5cdbe08296693dd53849f199c3933e16e97b33c1.1682088593.git.geert+renesas@glider.be
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202303272214.RxzpA6bP-lkp@intel.com/
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
38 lines
810 B
C
38 lines
810 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* include/lib/libgcc.h
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*/
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#ifndef __LIB_LIBGCC_H
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#define __LIB_LIBGCC_H
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#include <asm/byteorder.h>
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typedef int word_type __attribute__ ((mode (__word__)));
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#ifdef __BIG_ENDIAN
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struct DWstruct {
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int high, low;
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};
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#elif defined(__LITTLE_ENDIAN)
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struct DWstruct {
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int low, high;
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};
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#else
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#error I feel sick.
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#endif
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typedef union {
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struct DWstruct s;
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long long ll;
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} DWunion;
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long long notrace __ashldi3(long long u, word_type b);
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long long notrace __ashrdi3(long long u, word_type b);
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word_type notrace __cmpdi2(long long a, long long b);
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long long notrace __lshrdi3(long long u, word_type b);
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long long notrace __muldi3(long long u, long long v);
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word_type notrace __ucmpdi2(unsigned long long a, unsigned long long b);
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#endif /* __ASM_LIBGCC_H */
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