;;
--static)
static="yes"
- QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
;;
--mandir=*) mandir="$optarg"
# remove the file if it has been generated in the source directory
rm -f "${source_path}/linux-user/${arch}/syscall_nr.h"
# remove the dependency files
- find . -name "*.d" \
- -exec grep -q "${source_path}/linux-user/${arch}/syscall_nr.h" {} \; \
- -exec rm {} \;
+ for target in ${arch}*-linux-user ; do
+ test -d "${target}" && find "${target}" -type f -name "*.d" \
+ -exec grep -q "${source_path}/linux-user/${arch}/syscall_nr.h" {} \; \
+ -print | while read file ; do rm "${file}" "${file%.d}.o" ; done
+ done
done
if test -z "$python"
if test "$modules" = "yes" ; then
error_exit "static and modules are mutually incompatible"
fi
- if test "$pie" = "yes" ; then
- error_exit "static and pie are mutually incompatible"
- else
- pie="no"
- fi
fi
# Unconditional check for compiler __thread support
"Thread-Local Storage (TLS). Please upgrade to a version that does."
fi
-if test "$pie" = ""; then
- case "$cpu-$targetos" in
- i386-Linux|x86_64-Linux|x32-Linux|i386-OpenBSD|x86_64-OpenBSD)
- ;;
- *)
- pie="no"
- ;;
- esac
-fi
-
-if test "$pie" != "no" ; then
- cat > $TMPC << EOF
+cat > $TMPC << EOF
#ifdef __linux__
# define THREAD __thread
#else
# define THREAD
#endif
-
static THREAD int tls_var;
-
int main(void) { return tls_var; }
-
EOF
- # check we support --no-pie first...
- if compile_prog "-Werror -fno-pie" "-no-pie"; then
- CFLAGS_NOPIE="-fno-pie"
- LDFLAGS_NOPIE="-nopie"
- fi
- if compile_prog "-fPIE -DPIE" "-pie"; then
+# Check we support --no-pie first; we will need this for building ROMs.
+if compile_prog "-Werror -fno-pie" "-no-pie"; then
+ CFLAGS_NOPIE="-fno-pie"
+ LDFLAGS_NOPIE="-no-pie"
+fi
+
+if test "$static" = "yes"; then
+ if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
- QEMU_LDFLAGS="-pie $QEMU_LDFLAGS"
+ QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
pie="yes"
- if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
- QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
- fi
+ elif test "$pie" = "yes"; then
+ error_exit "-static-pie not available due to missing toolchain support"
else
- if test "$pie" = "yes"; then
- error_exit "PIE not available due to missing toolchain support"
- else
- echo "Disabling PIE due to missing toolchain support"
- pie="no"
- fi
+ QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
+ pie="no"
fi
+elif test "$pie" = "no"; then
+ QEMU_CFLAGS="$CFLAGS_NOPIE $QEMU_CFLAGS"
+ QEMU_LDFLAGS="$LDFLAGS_NOPIE $QEMU_LDFLAGS"
+elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
+ QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
+ QEMU_LDFLAGS="-pie $QEMU_LDFLAGS"
+ pie="yes"
+elif test "$pie" = "yes"; then
+ error_exit "PIE not available due to missing toolchain support"
+else
+ echo "Disabling PIE due to missing toolchain support"
+ pie="no"
+fi
+
+# Detect support for PT_GNU_RELRO + DT_BIND_NOW.
+# The combination is known as "full relro", because .got.plt is read-only too.
+if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
+ QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
fi
##########################################
fi
fi
-# Probe for the need for relocating the user-only binary.
-if ( [ "$linux_user" = yes ] || [ "$bsd_user" = yes ] ) && [ "$pie" = no ]; then
- textseg_addr=
- case "$cpu" in
- arm | i386 | ppc* | s390* | sparc* | x86_64 | x32)
- # ??? Rationale for choosing this address
- textseg_addr=0x60000000
- ;;
- mips)
- # A 256M aligned address, high in the address space, with enough
- # room for the code_gen_buffer above it before the stack.
- textseg_addr=0x60000000
- ;;
- esac
- if [ -n "$textseg_addr" ]; then
- cat > $TMPC <<EOF
- int main(void) { return 0; }
-EOF
- textseg_ldflags="-Wl,-Ttext-segment=$textseg_addr"
- if ! compile_prog "" "$textseg_ldflags"; then
- # In case ld does not support -Ttext-segment, edit the default linker
- # script via sed to set the .text start addr. This is needed on FreeBSD
- # at least.
- if ! $ld --verbose >/dev/null 2>&1; then
- error_exit \
- "We need to link the QEMU user mode binaries at a" \
- "specific text address. Unfortunately your linker" \
- "doesn't support either the -Ttext-segment option or" \
- "printing the default linker script with --verbose." \
- "If you don't want the user mode binaries, pass the" \
- "--disable-user option to configure."
- fi
-
- $ld --verbose | sed \
- -e '1,/==================================================/d' \
- -e '/==================================================/,$d' \
- -e "s/[.] = [0-9a-fx]* [+] SIZEOF_HEADERS/. = $textseg_addr + SIZEOF_HEADERS/" \
- -e "s/__executable_start = [0-9a-fx]*/__executable_start = $textseg_addr/" > config-host.ld
- textseg_ldflags="-Wl,-T../config-host.ld"
- fi
- fi
-fi
-
# Check that the C++ compiler exists and works with the C compiler.
# All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
if has $cxx; then
TARGET_SYSTBL_ABI=n32
;;
mips64|mips64el)
- mttcg="yes"
+ mttcg="no"
TARGET_ARCH=mips64
TARGET_BASE_ARCH=mips
echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
fi
fi
-if test "$target_linux_user" = "yes" || test "$target_bsd_user" = "yes" ; then
- ldflags="$ldflags $textseg_ldflags"
-fi
-
# Newer kernels on s390 check for an S390_PGSTE program header and
# enable the pgste page table extensions in that case. This makes
# the vm.allocate_pgste sysctl unnecessary. We enable this program
projects / thirdparty / qemu.git / blobdiff