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"
26 # Since we require POSIX threads, assume a POSIX system by default.
29 # Check for futex enabled all at once.
30 if test $enable_linux_futex = yes; then
34 config_path="linux posix"
38 config_path="linux/alpha linux posix"
42 config_path="linux posix"
46 config_path="linux/ia64 linux posix"
50 config_path="linux/mips linux posix"
54 config_path="linux/powerpc linux posix"
58 config_path="linux/s390 linux posix"
62 config_path="linux/tile linux posix"
65 # Note that bare i386 is not included here. We need cmpxchg.
67 config_path="linux/x86 linux posix"
68 case " ${CC} ${CFLAGS} " in
69 *" -m64 "*|*" -mx32 "*)
72 if test -z "$with_arch"; then
73 XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
78 # Similar jiggery-pokery for x86_64 multilibs, except here we
79 # can't rely on the --with-arch configure option, since that
80 # applies to the 64-bit side.
82 config_path="linux/x86 linux posix"
83 case " ${CC} ${CFLAGS} " in
85 XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
90 # Note that sparcv7 and sparcv8 is not included here. We need cas.
91 sparcv9-*-linux* | sparc64-*-linux*)
92 echo "int i;" > conftestx.c
93 if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
94 config_path="linux/sparc linux posix"
95 case "`/usr/bin/file conftestx.o`" in
97 case " ${CC} ${CFLAGS}" in
98 *" -mcpu=ultrasparc"*)
101 XCFLAGS="${XCFLAGS} -mcpu=v9"
107 rm -f conftestx.c conftestx.o
112 # Other system configury
118 # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
119 XLDFLAGS="${XLDFLAGS} -lrt"
124 # PA 32 HP-UX needs -frandom-seed for bootstrap compare.
125 XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed"
131 config_path="mingw32 posix"
135 config_path="bsd posix"
139 # Need to link with -lpthread so libgomp.so is self-contained.
140 XLDFLAGS="${XLDFLAGS} -lpthread"