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.
4
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.
12
13# Optimize TLS usage by avoiding the overhead of dynamic allocation.
14if test $gcc_cv_have_tls = yes ; then
15  case "${target}" in
16
17    *-*-k*bsd*-gnu*)
18	;;
19
20    *-*-musl*)
21	;;
22
23    *-*-linux* | *-*-gnu*)
24	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec -DUSING_INITIAL_EXEC_TLS"
25	;;
26
27    *-*-rtems*)
28	XCFLAGS="${XCFLAGS} -ftls-model=local-exec"
29	;;
30  esac
31fi
32
33# Since we require POSIX threads, assume a POSIX system by default.
34config_path="posix"
35
36# Check for futex enabled all at once.
37if test x$enable_linux_futex = xyes; then
38  case "${target}" in
39
40    aarch64*-*-linux*)
41	config_path="linux posix"
42	;;
43
44    alpha*-*-linux*)
45	config_path="linux/alpha linux posix"
46	;;
47
48    arm*-*-linux*)
49	config_path="linux posix"
50	;;
51
52    ia64*-*-linux*)
53	config_path="linux/ia64 linux posix"
54	;;
55
56    mips*-*-linux*)
57	config_path="linux/mips linux posix"
58	;;
59
60    powerpc*-*-linux*)
61	config_path="linux/powerpc linux posix"
62	;;
63
64    s390*-*-linux*)
65	config_path="linux/s390 linux posix"
66	;;
67
68    tile*-*-linux*)
69	config_path="linux/tile linux posix"
70	;;
71
72    # Note that bare i386 is not included here.  We need cmpxchg.
73    i[456]86-*-linux*)
74	config_path="linux/x86 linux posix"
75	case " ${CC} ${CFLAGS} " in
76	  *" -m64 "*|*" -mx32 "*)
77	    ;;
78	  *)
79	    if test -z "$with_arch"; then
80	      XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
81	    fi
82	esac
83	;;
84
85    # Similar jiggery-pokery for x86_64 multilibs, except here we
86    # can't rely on the --with-arch configure option, since that
87    # applies to the 64-bit side.
88    x86_64-*-linux*)
89	config_path="linux/x86 linux posix"
90	case " ${CC} ${CFLAGS} " in
91	  *" -m32 "*)
92	    XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
93	    ;;
94	esac
95	;;
96
97    # Note that sparcv7 and sparcv8 is not included here.  We need cas.
98    sparcv9-*-linux* | sparc64-*-linux*)
99	echo "int i;" > conftestx.c
100	if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
101	  config_path="linux/sparc linux posix"
102	  case "`/usr/bin/file conftestx.o`" in
103	    *32-bit*)
104	      case " ${CC} ${CFLAGS}" in
105		*" -mcpu=ultrasparc"*)
106		  ;;
107		*)
108		  XCFLAGS="${XCFLAGS} -mcpu=v9"
109		  ;;
110	      esac
111	      ;;
112	  esac
113	fi
114	rm -f conftestx.c conftestx.o
115	;;
116  esac
117fi
118
119# Other system configury
120case "${target}" in
121
122  *-*-hpux*)
123	config_path="hpux posix"
124	case "${target}" in
125	  *-*-hpux11*)
126	     # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
127	     XLDFLAGS="${XLDFLAGS} -lrt"
128	     ;;
129	esac
130	case "${target}" in
131	  hppa[12]*-*-hpux*)
132	    # PA 32 HP-UX needs -frandom-seed for bootstrap compare.
133	    XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed"
134	    ;;
135	esac
136	;;
137
138  *-*-mingw32*)
139	config_path="mingw32 posix"
140	;;
141
142  *-*-darwin*)
143	config_path="bsd darwin posix"
144	;;
145
146  *-*-freebsd*)
147	# Need to link with -lpthread so libgomp.so is self-contained.
148	XLDFLAGS="${XLDFLAGS} -lpthread"
149	;;
150
151  *-*-aix*)
152	config_path="posix"
153	# Need to link with -lpthread so libgomp.so is self-contained.
154	XLDFLAGS="${XLDFLAGS} -lpthread"
155	# AIX needs -frandom-seed for bootstrap compare.
156	XCFLAGS="${XCFLAGS} -frandom-seed=\$@"
157	;;
158
159  nvptx*-*-*)
160	config_path="nvptx accel"
161	;;
162
163  *-*-rtems*)
164	# Use self-contained synchronization objects if provided by Newlib
165	if test "x$ac_cv_type_struct__Mutex_Control" = xyes ; then
166	    config_path="rtems posix"
167	fi
168	;;
169
170  amdgcn*-*-*)
171	config_path="gcn accel"
172	;;
173
174  *)
175	;;
176
177esac
178