configure.tgt revision 1.1.1.1.2.1 
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    *-*-linux*)
18	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
19	;;
20  esac
21fi
22
23# Since we require POSIX threads, assume a POSIX system by default.
24config_path="posix"
25
26# Check for futex enabled all at once.
27if test $enable_linux_futex = yes; then
28  case "${target}" in
29
30    aarch64*-*-linux*)
31	config_path="linux posix"
32	;;
33
34    alpha*-*-linux*)
35	config_path="linux/alpha linux posix"
36	;;
37
38    arm*-*-linux*)
39	config_path="linux posix"
40	;;
41
42    ia64*-*-linux*)
43	config_path="linux/ia64 linux posix"
44	;;
45
46    mips*-*-linux*)
47	config_path="linux/mips linux posix"
48	;;
49
50    powerpc*-*-linux*)
51	config_path="linux/powerpc linux posix"
52	;;
53
54    s390*-*-linux*)
55	config_path="linux/s390 linux posix"
56	;;
57
58    tile*-*-linux*)
59	config_path="linux/tile linux posix"
60	;;
61
62    # Note that bare i386 is not included here.  We need cmpxchg.
63    i[456]86-*-linux*)
64	config_path="linux/x86 linux posix"
65	case " ${CC} ${CFLAGS} " in
66	  *" -m64 "*|*" -mx32 "*)
67	    ;;
68	  *)
69	    if test -z "$with_arch"; then
70	      XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
71	    fi
72	esac
73	;;
74
75    # Similar jiggery-pokery for x86_64 multilibs, except here we
76    # can't rely on the --with-arch configure option, since that
77    # applies to the 64-bit side.
78    x86_64-*-linux*)
79	config_path="linux/x86 linux posix"
80	case " ${CC} ${CFLAGS} " in
81	  *" -m32 "*)
82	    XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686"
83	    ;;
84	esac
85	;;
86
87    # Note that sparcv7 and sparcv8 is not included here.  We need cas.
88    sparcv9-*-linux* | sparc64-*-linux*)
89	echo "int i;" > conftestx.c
90	if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
91	  config_path="linux/sparc linux posix"
92	  case "`/usr/bin/file conftestx.o`" in
93	    *32-bit*)
94	      case " ${CC} ${CFLAGS}" in
95		*" -mcpu=ultrasparc"*)
96		  ;;
97		*)
98		  XCFLAGS="${XCFLAGS} -mcpu=v9"
99		  ;;
100	      esac
101	      ;;
102	  esac
103	fi
104	rm -f conftestx.c conftestx.o
105	;;
106  esac
107fi
108
109# Other system configury
110case "${target}" in
111
112  *-*-hpux*)
113	case "${target}" in
114	  *-*-hpux11*)
115	     # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
116	     XLDFLAGS="${XLDFLAGS} -lrt"
117	     ;;
118	esac
119	case "${target}" in
120	  hppa[12]*-*-hpux*)
121	    # PA 32 HP-UX needs -frandom-seed for bootstrap compare.
122	    XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed"
123	    ;;
124	esac
125	;;
126
127  *-*-mingw32*)
128	config_path="mingw32 posix"
129	;;
130
131  *-*-darwin*)
132	config_path="bsd posix"
133	;;
134
135  *-*-freebsd*)
136	# Need to link with -lpthread so libgomp.so is self-contained.
137	XLDFLAGS="${XLDFLAGS} -lpthread"
138	;;
139
140  *)
141	;;
142
143esac
144