From 7781ba8bccd49aa41633fe9c52ee38d36e33fc93 Mon Sep 17 00:00:00 2001 From: ian Date: Thu, 31 Dec 2015 18:29:24 +0000 Subject: 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. --- lib/libstand/Makefile | 6 ++++++ 1 file changed, 6 insertions(+) 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 -- cgit v1.1