1 # This is the target specific configuration file. This is invoked by the
2 # autoconf generated configure script. Putting it in a separate shell file
3 # lets us skip running autoconf when modifying target specific information.
5 # This file switches on the shell variable ${target}, and sets the
6 # following shell variables:
7 # config_path An ordered list of directories to search for
8 # sources and headers. This is relative to the
9 # config subdirectory of the source tree.
10 # XCFLAGS Add extra compile flags to use.
11 # XLDFLAGS Add extra link flags to use.
13 # Optimize TLS usage by avoiding the overhead of dynamic allocation.
14 if test $gcc_cv_have_tls = yes ; then
20 *-*-linux* | *-*-gnu*)
21 XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
25 XCFLAGS="${XCFLAGS} -ftls-model=local-exec"
30 # Since we require POSIX threads, assume a POSIX system by default.
33 # Check for futex enabled all at once.
34 if test x$enable_linux_futex = xyes; then
38 config_path="linux posix"
42 config_path="linux/alpha linux posix"
46 config_path="linux posix"
50 config_path="linux/ia64 linux posix"
54 config_path="linux/mips linux posix"
58 config_path="linux/powerpc linux posix"
62 config_path="linux/s390 linux posix"
66 config_path="linux/tile linux posix"
69 # Note that bare i386 is not included here. We need cmpxchg.
71 config_path="linux/x86 linux posix"
72 case " ${CC} ${CFLAGS} " in
73 *" -m64 "*|*" -mx32 "*)
76 if test -z "$with_arch"; then
77 XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
82 # Similar jiggery-pokery for x86_64 multilibs, except here we
83 # can't rely on the --with-arch configure option, since that
84 # applies to the 64-bit side.
86 config_path="linux/x86 linux posix"
87 case " ${CC} ${CFLAGS} " in
89 XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
94 # Note that sparcv7 and sparcv8 is not included here. We need cas.
95 sparcv9-*-linux* | sparc64-*-linux*)
96 echo "int i;" > conftestx.c
97 if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
98 config_path="linux/sparc linux posix"
99 case "`/usr/bin/file conftestx.o`" in
101 case " ${CC} ${CFLAGS}" in
102 *" -mcpu=ultrasparc"*)
105 XCFLAGS="${XCFLAGS} -mcpu=v9"
111 rm -f conftestx.c conftestx.o
116 # Other system configury
120 config_path="hpux posix"
123 # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
124 XLDFLAGS="${XLDFLAGS} -lrt"
129 # PA 32 HP-UX needs -frandom-seed for bootstrap compare.
130 XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed"
136 config_path="mingw32 posix"
140 config_path="bsd darwin posix"
144 # Need to link with -lpthread so libgomp.so is self-contained.
145 XLDFLAGS="${XLDFLAGS} -lpthread"
150 # Need to link with -lpthread so libgomp.so is self-contained.
151 XLDFLAGS="${XLDFLAGS} -lpthread"