Author: mmel
Date: Wed Apr 29 14:06:42 2020
New Revision: 360463
URL: https://svnweb.freebsd.org/changeset/base/360463
Log:
Don't allow to use FPU inside of rtld library.
Clang10 may use FPU instructions for optimizing operations with
memory blocks. But we don't want to do lengthy save/restore of all
FPU registers across each rtld_start() call.
MFC after: 3 week
Modified:
head/libexec/rtld-elf/Makefile
Modified: head/libexec/rtld-elf/Makefile
==============================================================================
--- head/libexec/rtld-elf/Makefile Wed Apr 29 13:45:21 2020
(r360462)
+++ head/libexec/rtld-elf/Makefile Wed Apr 29 14:06:42 2020
(r360463)
@@ -48,6 +48,9 @@ MLINKS?= rtld.1 ld-elf.so.1.1 \
rtld.1 ld.so.1
CFLAGS+= -fpic -DPIC $(DEBUG)
+CFLAGS.armv6+= -mfpu=none
+CFLAGS.armv7+= -mfpu=none
+
LDFLAGS+= -shared -Wl,-Bsymbolic -Wl,-z,defs -nostdlib -e ${RTLD_ENTRY}
# Pull in the dependencies that we use from libc
.include "rtld-libc/Makefile.inc"
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