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#  tmake_file		A list of machine-description-specific
13#			makefile fragments.
14
15# Optimize TLS usage by avoiding the overhead of dynamic allocation.
16if test $gcc_cv_have_tls = yes ; then
17  case "${target}" in
18
19    *-*-k*bsd*-gnu*)
20	;;
21
22    *-*-musl*)
23	;;
24
25    *-*-linux* | *-*-gnu*)
26	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec -DUSING_INITIAL_EXEC_TLS"
27	;;
28
29    *-*-rtems*)
30	XCFLAGS="${XCFLAGS} -ftls-model=local-exec"
31	;;
32  esac
33fi
34
35tmake_file=
36# Since we require POSIX threads, assume a POSIX system by default.
37config_path="posix"
38
39# Check for futex enabled all at once.
40if test x$enable_linux_futex = xyes; then
41  case "${target}" in
42
43    aarch64*-*-linux*)
44	config_path="linux posix"
45	;;
46
47    alpha*-*-linux*)
48	config_path="linux/alpha linux posix"
49	;;
50
51    arm*-*-linux*)
52	config_path="linux posix"
53	;;
54
55    ia64*-*-linux*)
56	config_path="linux/ia64 linux posix"
57	;;
58
59    loongarch*-*-linux*)
60	config_path="linux posix"
61	;;
62
63    mips*-*-linux*)
64	config_path="linux/mips linux posix"
65	;;
66
67    powerpc*-*-linux*)
68	config_path="linux/powerpc linux posix"
69	;;
70
71    riscv64*-*-linux*)
72	config_path="linux posix"
73	;;
74
75    s390*-*-linux*)
76	config_path="linux/s390 linux posix"
77	;;
78
79    tile*-*-linux*)
80	config_path="linux/tile linux posix"
81	;;
82
83    # Note that bare i386 is not included here.  We need cmpxchg.
84    i[456]86-*-linux* | x86_64-*-linux*)
85	config_path="linux/x86 linux posix"
86	cat > conftestx.c <<EOF
87#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
88#error need -march=i486
89#endif
90EOF
91	if ${CC} ${CFLAGS} -E conftestx.c > /dev/null 2>&1; then
92	  :
93	else
94	  if test "${target_cpu}" = x86_64; then
95	    XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
96	  else
97	    XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
98	  fi
99	fi
100	rm -f conftestx.c
101	;;
102
103    # Note that sparcv7 and sparcv8 is not included here.  We need cas.
104    sparcv9-*-linux* | sparc64-*-linux*)
105	echo "int i;" > conftestx.c
106	if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
107	  config_path="linux/sparc linux posix"
108	  case "`/usr/bin/file conftestx.o`" in
109	    *32-bit*)
110	      case " ${CC} ${CFLAGS}" in
111		*" -mcpu=ultrasparc"*)
112		  ;;
113		*)
114		  XCFLAGS="${XCFLAGS} -mcpu=v9"
115		  ;;
116	      esac
117	      ;;
118	  esac
119	fi
120	rm -f conftestx.c conftestx.o
121	;;
122  esac
123fi
124
125# Other system configury
126case "${target}" in
127
128  *-*-hpux*)
129	config_path="hpux posix"
130	case "${target}" in
131	  *-*-hpux11*)
132	     # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
133	     XLDFLAGS="${XLDFLAGS} -lrt"
134	     ;;
135	esac
136	case "${target}" in
137	  hppa[12]*-*-hpux*)
138	    # PA 32 HP-UX needs -frandom-seed for bootstrap compare.
139	    XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed"
140	    ;;
141	esac
142	;;
143
144  *-*-mingw32*)
145	config_path="mingw32 posix"
146	;;
147
148  *-*-darwin*)
149	config_path="bsd darwin posix"
150	;;
151
152  *-*-freebsd*)
153	# Need to link with -lpthread so libgomp.so is self-contained.
154	XLDFLAGS="${XLDFLAGS} -lpthread"
155	;;
156
157  *-*-aix*)
158	config_path="posix"
159	# Need to link with -lpthread so libgomp.so is self-contained.
160	XLDFLAGS="${XLDFLAGS} -lpthread"
161	# AIX needs -frandom-seed for bootstrap compare.
162	XCFLAGS="${XCFLAGS} -frandom-seed=\$@"
163	# Create AIX-style "FAT" libraries.
164	tmake_file="t-aix"
165	;;
166
167  nvptx*-*-*)
168	config_path="nvptx accel"
169	;;
170
171  *-*-rtems*)
172	# Use self-contained synchronization objects if provided by Newlib
173	if test "x$ac_cv_type_struct__Mutex_Control" = xyes ; then
174	    config_path="rtems posix"
175	fi
176	;;
177
178  amdgcn*-*-*)
179	config_path="gcn accel"
180
181	#TODO PR101484
182	XCFLAGS="$XCFLAGS -Wno-error=array-bounds"
183	;;
184
185  *)
186	;;
187
188esac
189