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authorGeert Uytterhoeven <geert+renesas@glider.be>2023-04-21 17:54:24 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-04-27 23:45:31 +0300
commit4f20b7471c57032860065591a17efd3325216bde (patch)
treea3fe1d9231b0486cc281613ebe1ed60b5012c4dd /include/linux/libgcc.h
parent22ba509dd4dad053ad88fc387b5a74c2a9296a01 (diff)
downloadlinux-4f20b7471c57032860065591a17efd3325216bde.tar.xz
libgcc: add forward declarations for generic library routines
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>
Diffstat (limited to 'include/linux/libgcc.h')
-rw-r--r--include/linux/libgcc.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/libgcc.h b/include/linux/libgcc.h
index b8dc75f0c830..fc388da6a027 100644
--- a/include/linux/libgcc.h
+++ b/include/linux/libgcc.h
@@ -27,4 +27,11 @@ typedef union {
long long ll;
} DWunion;
+long long notrace __ashldi3(long long u, word_type b);
+long long notrace __ashrdi3(long long u, word_type b);
+word_type notrace __cmpdi2(long long a, long long b);
+long long notrace __lshrdi3(long long u, word_type b);
+long long notrace __muldi3(long long u, long long v);
+word_type notrace __ucmpdi2(unsigned long long a, unsigned long long b);
+
#endif /* __ASM_LIBGCC_H */