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| author | Lucas Stach <l.stach@pengutronix.de> | 2018-02-21 10:53:33 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-02-21 20:03:47 +0100 |
| commit | 76e439f6c4ca2e17f34d6be888f839299f6df1da (patch) | |
| tree | 8613ec6f6035606985e2813c0e613805f06a8a42 /lib/Makefile | |
| parent | 7ecd9ebe70e5421666a0adc77b280d7eec27939a (diff) | |
| download | barebox-76e439f6c4ca2e17f34d6be888f839299f6df1da.tar.gz barebox-76e439f6c4ca2e17f34d6be888f839299f6df1da.tar.xz | |
lib: add weak clz/ctz functions
This is a copy of the Linux kernel implementation. This adds weak
functions for the clz and ctz gcc builtins. Normally GCC will map
those builtins to CPU instructions directly, but for CPUs where those
are unavailable, we need to provide a fallback implementation.
Fixes build of the zlib decompressor on ARMv4 CPUs.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'lib/Makefile')
| -rw-r--r-- | lib/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Makefile b/lib/Makefile index e5cf32c162..878c2fbe03 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -63,3 +63,4 @@ obj-$(CONFIG_RATP) += ratp.o obj-y += list_sort.o obj-y += int_sqrt.o obj-y += parseopt.o +obj-y += clz_ctz.o |