1dnl Process this file with autoconf to produce a configure script.
2dnl NB: The version here is not used.  If gdb ever changes from generating its
3dnl version at build time to autoconf time (like bfd et al do), we can switch.
4AC_INIT([sim], [0],
5  [https://sourceware.org/bugzilla/enter_bug.cgi?product=gdb&component=sim],
6  [], [https://sourceware.org/gdb/wiki/Sim/])
7
8dnl Probably should unify PKGVERSION with PACKAGE_* settings from AC_INIT.
9ACX_PKGVERSION([SIM])
10AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
11dnl PACKAGE_BUGREPORT is provided by AC_INIT.
12ACX_BUGURL([$PACKAGE_BUGREPORT])
13AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
14
15AC_CONFIG_HEADERS([config.h])
16
17SIM_AC_TOOLCHAIN
18SIM_AC_PLATFORM
19
20AM_MAINTAINER_MODE
21AM_INIT_AUTOMAKE
22AM_SILENT_RULES([yes])
23
24# If a cpu ever has more than one simulator to choose from, use
25# --enable-sim=... to choose.
26AC_ARG_ENABLE(sim,
27[AS_HELP_STRING([--enable-sim], [Enable the GNU simulator])],
28[case "${enableval}" in
29yes | no) ;;
30*)	AC_MSG_ERROR(bad value ${enableval} given for --enable-sim option) ;;
31esac])
32
33AC_ARG_ENABLE([example-sims],
34	      [AC_HELP_STRING([--enable-example-sims],
35			      [enable example GNU simulators])])
36
37AC_ARG_ENABLE(targets,
38[  --enable-targets        alternative target configurations],
39[case "${enableval}" in
40  yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
41	    ;;
42  no)       enable_targets= ;;
43  *)        enable_targets=$enableval ;;
44esac])
45
46dnl Used to keep track of which target (if any) is the default one.  This is
47dnl used when installing files to see if they need to be suffixed.
48SIM_PRIMARY_TARGET=
49AC_SUBST(SIM_PRIMARY_TARGET)
50
51dnl Directories that we need to recurse into (i.e. add to $SUBDIRS).
52SIM_SUBDIRS=
53AC_SUBST(SIM_SUBDIRS)
54
55dnl List of enabled arch backends.
56SIM_ENABLED_ARCHES=
57AC_SUBST(SIM_ENABLED_ARCHES)
58
59dnl Used by common/Make-common.in to see which configure script created it.
60SIM_COMMON_BUILD_TRUE=
61SIM_COMMON_BUILD_FALSE='#'
62AC_SUBST(SIM_COMMON_BUILD_TRUE)
63AC_SUBST(SIM_COMMON_BUILD_FALSE)
64
65AC_CONFIG_FILES(Make-common.sim:common/Make-common.in)
66dnl Build a particular arch subdir.
67dnl arg[1] is the arch subdir name.
68dnl arg[2] is whether the arch has a dedicated configure script.
69m4_define([SIM_BUILD_TARGET], [dnl
70  AS_VAR_APPEND([SIM_ENABLED_ARCHES], [" $1"])
71  m4_if($2, [true], [dnl
72    AC_CONFIG_SUBDIRS($1)
73  ], [dnl
74    AC_CONFIG_FILES($1/Makefile.sim:$1/Makefile.in)
75    AC_CONFIG_COMMANDS([$1/Makefile],
76[sed -n \
77	-e '/^## COMMON_PRE_/,/^## End COMMON_PRE_/ {
78		/^srcdir = / s:$:/$1:
79		p
80	}' \
81	<Make-common.sim >$1/Makesim1.tmp
82 sed -n -e '/^## COMMON_POST_/,/^## End COMMON_POST_/ p' <Make-common.sim >$1/Makesim2.tmp
83 sed -e '/^## COMMON_PRE_/ r $1/Makesim1.tmp' \
84	-e '/^## COMMON_POST_/ r $1/Makesim2.tmp' \
85	<$1/Makefile.sim >$1/Makefile
86 rm -f $1/Makesim1.tmp $1/Makesim2.tmp
87])
88    AS_VAR_APPEND([SIM_SUBDIRS], [" $1"])
89  ])
90  AC_CONFIG_FILES($1/.gdbinit:common/gdbinit.in)
91  dnl Create the depdirs for ports until we can convert them to automake.
92  AC_CONFIG_COMMANDS([depdir-$1],
93		     [$SHELL $ac_aux_dir/mkinstalldirs $1/$DEPDIR],
94		     [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR])
95])
96dnl Enable a particular arch subdir.
97dnl arg[1] is the matching target triple.
98dnl arg[2] is the arch subdir name.
99dnl arg[3] is whether the arch has a dedicated configure script.
100dnl arg[4] is any additional shell code to run for this arch.
101m4_define([SIM_TARGET], [dnl
102  sim_enable_arch_$2=false
103  case "${targ}" in
104    all|$1)
105      if test "${targ}" = "${target}"; then
106        SIM_PRIMARY_TARGET=$2
107      fi
108      SIM_BUILD_TARGET($2, $3)
109      sim_enable_arch_$2=true
110      $4
111      ;;
112  esac
113  SIM_AC_TOOLCHAIN_FOR_TARGET($2)
114  AM_CONDITIONAL([SIM_ENABLE_ARCH_$2], [${sim_enable_arch_$2}])
115])
116
117dnl WHEN ADDING ENTRIES TO THIS MATRIX:
118dnl Make sure that the left side always has two dashes.  Otherwise you can get
119dnl spurious matches.  Even for unambiguous cases, do this as a convention, else
120dnl the table becomes a real mess to understand and maintain.
121dnl
122dnl NB: Target matching is aligned with gdb/configure.tgt.  Changes must be kept
123dnl in sync with that file.
124if test "${enable_sim}" != no; then
125  sim_igen=no
126  for targ in `echo $target $enable_targets | sed 's/,/ /g'`
127  do
128    SIM_TARGET([aarch64*-*-*], [aarch64])
129    SIM_TARGET([arm*-*-*], [arm])
130    SIM_TARGET([avr*-*-*], [avr])
131    SIM_TARGET([bfin-*-*], [bfin])
132    SIM_TARGET([bpf-*-*], [bpf])
133    SIM_TARGET([cr16*-*-*], [cr16])
134    SIM_TARGET([cris-*-* | crisv32-*-*], [cris])
135    SIM_TARGET([d10v-*-*], [d10v])
136    SIM_TARGET([frv-*-*], [frv])
137    SIM_TARGET([ft32-*-*], [ft32])
138    SIM_TARGET([h8300*-*-*], [h8300])
139    SIM_TARGET([iq2000-*-*], [iq2000])
140    SIM_TARGET([lm32-*-*], [lm32])
141    SIM_TARGET([m32c-*-*], [m32c])
142    SIM_TARGET([m32r-*-*], [m32r])
143    SIM_TARGET([m68hc11-*-*|m6811-*-*], [m68hc11])
144    SIM_TARGET([mcore-*-*], [mcore])
145    SIM_TARGET([microblaze*-*-*], [microblaze])
146    SIM_TARGET([mips*-*-*], [mips], [true], [sim_igen=yes])
147    SIM_TARGET([mn10300*-*-*], [mn10300], [], [sim_igen=yes])
148    SIM_TARGET([moxie-*-*], [moxie])
149    SIM_TARGET([msp430*-*-*], [msp430])
150    SIM_TARGET([or1k*-*-*], [or1k])
151    SIM_TARGET([powerpc*-*-*], [ppc], [true])
152    SIM_TARGET([pru*-*-*], [pru])
153    SIM_TARGET([riscv*-*-*], [riscv])
154    SIM_TARGET([rl78-*-*], [rl78])
155    SIM_TARGET([rx-*-*], [rx])
156    SIM_TARGET([sh*-*-*], [sh])
157    SIM_TARGET([sparc-*-*], [erc32])
158    SIM_TARGET([v850*-*-*], [v850], [], [sim_igen=yes])
159  done
160
161  if test "x${enable_example_sims}" = xyes; then
162    SIM_AC_TOOLCHAIN_FOR_TARGET(example-synacor)
163    SIM_BUILD_TARGET([example-synacor])
164  fi
165  AM_CONDITIONAL([SIM_ENABLE_ARCH_examples], [test "${enable_example_sims}" = "yes"])
166fi
167AM_CONDITIONAL([SIM_ENABLE_IGEN], [test "$sim_igen" = "yes"])
168AM_CONDITIONAL([ENABLE_SIM], [test -n "$SIM_SUBDIRS"])
169
170dnl Standard (and optional) simulator options.
171dnl Eventually all simulators will support these.
172SIM_AC_OPTION_ALIGNMENT
173SIM_AC_OPTION_ASSERT
174SIM_AC_OPTION_CGEN_MAINT
175SIM_AC_OPTION_DEBUG
176SIM_AC_OPTION_ENDIAN
177SIM_AC_OPTION_ENVIRONMENT
178SIM_AC_OPTION_HARDWARE
179SIM_AC_OPTION_INLINE
180SIM_AC_OPTION_PROFILE
181SIM_AC_OPTION_RESERVED_BITS
182SIM_AC_OPTION_SCACHE
183SIM_AC_OPTION_STDIO
184SIM_AC_OPTION_TRACE
185SIM_AC_OPTION_WARNINGS
186
187AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
188AC_CACHE_VAL(sim_cv_decl_getopt_unistd_h,
189[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
190sim_cv_decl_getopt_unistd_h=yes, sim_cv_decl_getopt_unistd_h=no)])
191AC_MSG_RESULT($sim_cv_decl_getopt_unistd_h)
192if test $sim_cv_decl_getopt_unistd_h = yes; then
193  AC_DEFINE([HAVE_DECL_GETOPT], 1,
194	    [Is the prototype for getopt in <unistd.h> in the expected format?])
195fi
196
197dnl These are unfortunate.  They are conditionally called by other sim macros
198dnl but always used by common/Make-common.in.  So we have to subst here even
199dnl when the rest of the code is in the respective macros.  Once we merge the
200dnl respective SIM_AC_OPTION_xxx call above, we can drop these.
201AC_SUBST(sim_bitsize)
202AC_SUBST(sim_float)
203
204dnl Some arches have unique configure flags.
205m4_include([frv/acinclude.m4])
206m4_include([riscv/acinclude.m4])
207m4_include([rx/acinclude.m4])
208
209dnl Hack to output an "include" statement in the Makefile so automake doesn't
210dnl try to follow it itself while processing Makefile.am.
211include_makefile="include"
212AC_SUBST(include_makefile)
213
214AC_CONFIG_FILES([arch-subdir.mk Makefile .gdbinit:gdbinit.in])
215AC_OUTPUT
216