linux/arch/riscv/lib
Olof Johansson fc585d4a5c riscv: Less inefficient gcc tishift helpers (and export their symbols)
The existing __lshrti3 was really inefficient, and the other two helpers
are also needed to compile some modules.

Add the missing versions, and export all of the symbols like arm64
already does.

This code is based on the assembly generated by libgcc builds.

This fixes a build break triggered by ubsan:

riscv64-unknown-linux-gnu-ld: lib/ubsan.o: in function `.L2':
ubsan.c:(.text.unlikely+0x38): undefined reference to `__ashlti3'
riscv64-unknown-linux-gnu-ld: ubsan.c:(.text.unlikely+0x42): undefined reference to `__ashrti3'

Signed-off-by: Olof Johansson <olof@lixom.net>
[paul.walmsley@sifive.com: use SYM_FUNC_{START,END} instead of
 ENTRY/ENDPROC; note libgcc origin]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2020-01-18 19:13:41 -08:00
..
Makefile riscv: add nommu support 2019-11-17 15:17:39 -08:00
delay.c riscv: delay: use do_div() instead of __udivdi3() 2019-08-08 16:05:38 -07:00
memcpy.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 2019-06-05 17:36:37 +02:00
memset.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 2019-06-05 17:36:37 +02:00
tishift.S riscv: Less inefficient gcc tishift helpers (and export their symbols) 2020-01-18 19:13:41 -08:00
uaccess.S riscv: fix compile failure with EXPORT_SYMBOL() & !MMU 2019-12-27 21:44:36 -08:00