source: branches/libc-0.6/src/gcc/libjava/configure.host

Last change on this file was 1392, checked in by bird, 21 years ago

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1# configure.host
2
3# This shell script handles all host based configuration for libgcj.
4# It sets various shell variables based on the the host and the
5# configuration options. You can modify this shell script without
6# needing to rerun autoconf.
7
8# This shell script should be invoked as
9# . configure.host
10# If it encounters an error, it will exit with a message.
11
12# It uses the following shell variables:
13# host The configuration host
14# host_cpu The configuration host CPU
15# target_optspace --enable-target-optspace ("yes", "no", "")
16
17# It sets the following shell variables:
18# libgcj_cflags Special CFLAGS to use when building
19# libgcj_cxxflags Special CXXFLAGS to use when building
20# libgcj_javaflags Special JAVAFLAGS to use when building
21# libgcj_interpreter If the bytecode interpreter supports this platform.
22# enable_java_net_default If java.net native code should be enabled by
23# default.
24# enable_hash_synchronization_default If hash synchronization should be
25# enabled by default.
26# sysdeps_dir Directory containing system-dependent headers
27# slow_pthread_self The synchronization code should try to avoid
28# pthread_self calls by caching thread IDs in a hashtable
29# can_unwind_signal Set to "yes" if the EH unwinder supports throwing
30# from a signal handler.
31
32libgcj_flags=
33libgcj_cflags=
34libgcj_cxxflags=
35libgcj_javaflags=
36libgcj_interpreter=
37enable_java_net_default=yes
38enable_hash_synchronization_default=no
39sysdeps_dir=generic
40slow_pthread_self=
41can_unwind_signal=no
42
43case "${target_optspace}:${host}" in
44 yes:*)
45 libgcj_flags="${libgcj_flags} -Os"
46 ;;
47 :m32r-* | :d10v-* | :d30v-*)
48 libgcj_flags="${libgcj_flags} -Os"
49 ;;
50 no:* | :*)
51 # Nothing.
52 ;;
53esac
54
55AM_RUNTESTFLAGS=
56
57# Set any host dependent compiler flags.
58# THIS TABLE IS SORTED. KEEP IT THAT WAY.
59
60echo "$target"
61
62DIVIDESPEC=-fuse-divide-subroutine
63EXCEPTIONSPEC=-fnon-call-exceptions
64CHECKREFSPEC=
65
66# This case statement supports per-CPU defaults.
67case "${host}" in
68 arm*-elf | strongarm*-elf | xscale*-elf)
69 with_libffi_default=no
70 PROCESS=Ecos
71 FILE=Posix
72 CHECKREFSPEC=-fcheck-references
73 EXCEPTIONSPEC=
74 enable_java_net_default=no
75 enable_getenv_properties_default=no
76 enable_main_args_default=no
77 ;;
78 mips-tx39-*|mipstx39-unknown-*)
79 libgcj_flags="${libgcj_flags} -G 0"
80 LDFLAGS="$LDFLAGS -Tjmr3904dram.ld"
81 AM_RUNTESTFLAGS="--target_board=jmr3904-sim"
82 # Use "Ecos" processes since they are a no-op.
83 PROCESS=Ecos
84 FILE=Posix
85 enable_java_net_default=no
86 enable_getenv_properties_default=no
87 ;;
88 i686-*|i586-*|i486-*|i386-*)
89 sysdeps_dir=i386
90 libgcj_flags="${libgcj_flags} -ffloat-store"
91 libgcj_interpreter=yes
92 libgcj_cxxflags="-D__NO_MATH_INLINES"
93 libgcj_cflags="-D__NO_MATH_INLINES"
94 DIVIDESPEC=-fno-use-divide-subroutine
95 enable_hash_synchronization_default=yes
96 slow_pthread_self=yes
97 ;;
98 x86_64-*)
99 CHECKREFSPEC="%{m32:-fcheck-references}"
100 sysdeps_dir=x86-64
101 libgcj_flags="${libgcj_flags} -ffloat-store -fno-omit-frame-pointer"
102 libgcj_cxxflags="-D__NO_MATH_INLINES"
103 libgcj_cflags="-D__NO_MATH_INLINES"
104 enable_hash_synchronization_default=yes
105 slow_pthread_self=yes
106 libgcj_interpreter=yes
107 ;;
108 alpha*-*)
109 sysdeps_dir=alpha
110 libgcj_flags="${libgcj_flags} -mieee"
111 libgcj_interpreter=yes
112 enable_hash_synchronization_default=yes
113 IEEESPEC=-mieee
114 ;;
115 powerpc64*-*)
116 # libffi not ported.
117 with_libffi_default=no
118 libgcj_interpreter=no
119 libgcj_flags="${libgcj_flags} -mminimal-toc"
120 # this may not be correct
121 sysdeps_dir=powerpc
122 enable_hash_synchronization_default=yes
123 slow_pthread_self=yes
124 ;;
125 powerpc*-*)
126 sysdeps_dir=powerpc
127 libgcj_interpreter=yes
128 enable_hash_synchronization_default=yes
129 slow_pthread_self=yes
130 ;;
131 s390*-*)
132 sysdeps_dir=s390
133 libgcj_interpreter=yes
134 enable_hash_synchronization_default=yes
135 ;;
136 sparc*-*)
137 libgcj_interpreter=yes
138 ;;
139 ia64-*)
140 sysdeps_dir=ia64
141 libgcj_flags="${libgcj_flags} -funwind-tables"
142 libgcj_interpreter=yes
143 enable_hash_synchronization_default=yes
144 ;;
145 sh-* | sh[34]*-*)
146 sysdeps_dir=sh
147 libgcj_flags="${libgcj_flags} -mieee"
148 libgcj_interpreter=yes
149 CHECKREFSPEC=-fcheck-references
150 EXCEPTIONSPEC=
151 enable_hash_synchronization_default=yes
152 ;;
153esac
154
155# This case statement supports generic port properties and may refine
156# the above per-CPU defaults. Note: If your OS implements
157# MD_FALLBACK_FRAME_STATE_FOR, then you want to set can_unwind_signal
158# here.
159case "${host}" in
160 i[34567]86*-linux* | \
161 powerpc*-linux* | \
162 alpha*-linux* | \
163 s390*-linux* | \
164 sparc*-linux* | \
165 ia64-* | \
166 x86_64*-linux*)
167 can_unwind_signal=yes
168 ;;
169 *-*-darwin*)
170 enable_hash_synchronization_default=no
171 slow_pthread_self=
172 can_unwind_signal=no
173 ;;
174 *-*-freebsd*)
175 slow_pthread_self=
176 ;;
177 *-cygwin*)
178 # The cygwin linker doesn't do 8-byte alignment by default, so
179 # disable hash synchronization for now.
180 enable_hash_synchronization_default=no
181 slow_pthread_self=
182 ;;
183esac
184
185libgcj_cflags="${libgcj_cflags} ${libgcj_flags}"
186libgcj_cxxflags="${libgcj_cxxflags} ${libgcj_flags}"
187libgcj_javaflags="${libgcj_javaflags} ${libgcj_flags}"
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