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| author | ian <ian@FreeBSD.org> | 2015-12-31 18:29:24 +0000 |
|---|---|---|
| committer | ian <ian@FreeBSD.org> | 2015-12-31 18:29:24 +0000 |
| commit | 7781ba8bccd49aa41633fe9c52ee38d36e33fc93 (patch) | |
| tree | 92e89b90bebdbcd7094c54aef52204d85fa2ea55 /lib | |
| parent | a4ab0640fd84773b6017ac880c415cfdc6cdd80f (diff) | |
| download | FreeBSD-src-7781ba8bccd49aa41633fe9c52ee38d36e33fc93.zip FreeBSD-src-7781ba8bccd49aa41633fe9c52ee38d36e33fc93.tar.gz | |
When building libstand for arm, don't emit instructions that require
relocation fixups unsupported by the self_reloc() code, and don't optimize
memcpy/memset using floating point registers, because in a standalone
environment nothing has initialized the fpu hardware.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libstand/Makefile | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/libstand/Makefile b/lib/libstand/Makefile index a69a935..3126c1c 100644 --- a/lib/libstand/Makefile +++ b/lib/libstand/Makefile @@ -44,6 +44,12 @@ SRCS+= bcmp.c bcopy.c bzero.c ffs.c memccpy.c memchr.c memcmp.c memcpy.c \ .if ${MACHINE_CPUARCH} == "arm" .PATH: ${LIBC_SRC}/arm/gen +# Do not generate movt/movw, because the relocation fixup for them does not +# translate to the -Bsymbolic -pie format required by self_reloc() in loader(8). +# Also, the fpu is not available in a standalone environment. +CFLAGS.clang+= -mllvm -arm-use-movt=0 +CFLAGS.clang+= -mfpu=none + # Compiler support functions .PATH: ${LIBSTAND_SRC}/../../contrib/compiler-rt/lib/builtins/ # __clzsi2 and ctzsi2 for various builtin functions |
