[deliverable/binutils-gdb.git] / gdb / configure.tgt

# Mappings from configurations to GDB target definitions.  This is
# invoked from the autoconf generated configure script.

# This file sets the following shell variables:
#  gdb_target_cpu	generic name of CPU
#  gdb_target		name of GDB target definition to use

# This file may also modify configdirs.

# Map target cpu into the config cpu subdirectory name.
# The default is $target_cpu.

case "${target_cpu}" in

alpha)			gdb_target_cpu=alpha ;;
c[12])			gdb_target_cpu=convex ;;
hppa*)			gdb_target_cpu=pa ;;
i[3456]86)		gdb_target_cpu=i386 ;;
m68*)			gdb_target_cpu=m68k ;;
m88*)			gdb_target_cpu=m88k ;;
mips*)			gdb_target_cpu=mips ;;
np1)			gdb_target_cpu=gould ;;
powerpc*)		gdb_target_cpu=powerpc ;;
pn)			gdb_target_cpu=gould ;;
pyramid)		gdb_target_cpu=pyr ;;
sparc*)			gdb_target_cpu=sparc ;;
*)			gdb_target_cpu=$target_cpu ;;

esac

# map target info into gdb names.

case "${target}" in

a29k-*-aout*)		gdb_target=a29k ;;
a29k-*-coff*)		gdb_target=a29k ;;
a29k-*-elf*)		gdb_target=a29k ;;
a29k-*-ebmon*)		gdb_target=a29k ;;
a29k-*-kern*)		gdb_target=a29k-kern ;;
a29k-*-none*)		gdb_target=a29k ;;
a29k-*-sym1*)		gdb_target=ultra3 ;;
a29k-*-udi*)		gdb_target=a29k-udi ;;
a29k-*-vxworks*)        gdb_target=vx29k ;;

alpha-*-osf*)		gdb_target=alpha-osf1 ;;
alpha-*-linux*)		gdb_target=alpha-linux ;;

# start-sanitize-arc
arc-*-*)		gdb_target=arc ;;
# end-sanitize-arc

arm-*-*)		gdb_target=arm ;;

c1-*-*)			gdb_target=convex ;;
c2-*-*)			gdb_target=convex ;;

# start-sanitize-d10v
d10v-*-*)		gdb_target=d10v ;;
# end-sanitize-d10v

h8300-*-*)		gdb_target=h8300 ;;
h8500-*-*)		gdb_target=h8500 ;;

sh-*-*)			gdb_target=sh ;;

hppa*-*-bsd*)		gdb_target=hppabsd ;;
hppa*-*-pro*)		gdb_target=hppapro ;;
hppa*-*-hpux*)		gdb_target=hppahpux ;;
hppa*-*-hiux*)		gdb_target=hppahpux ;;
hppa*-*-osf*)		gdb_target=hppaosf ;;

i[3456]86-sequent-bsd*)	gdb_target=symmetry ;;
i[3456]86-sequent-sysv4*) gdb_target=ptx4 ;;
i[3456]86-sequent-sysv*) gdb_target=ptx ;;
i[3456]86-ncr-*)	gdb_target=ncr3000 ;;
i[3456]86-*-aout*)	gdb_target=i386aout ;;
i[3456]86-*-coff*)	gdb_target=i386v ;;
i[3456]86-*-elf*)	gdb_target=i386v ;;
i[3456]86-*-aix*)	gdb_target=i386aix ;;
i[3456]86-*-bsd*)	gdb_target=i386bsd ;;
i[3456]86-*-freebsd*)	gdb_target=fbsd ;;
i[3456]86-*-netbsd*)	gdb_target=nbsd ;;
i[3456]86-*-os9k)	gdb_target=i386os9k ;;
i[3456]86-*-go32*)	gdb_target=i386aout ;;
i[3456]86-*-lynxos*)	gdb_target=i386lynx
		configdirs="${configdirs} gdbserver" ;;
i[3456]86-*-solaris*)	gdb_target=i386sol2 ;;
i[3456]86-*-sunos*)	gdb_target=sun386 ;;
i[3456]86-*-sysv4*)	gdb_target=i386v4 ;;
i[3456]86-*-sco*)	gdb_target=i386v ;;
i[3456]86-*-sysv*)	gdb_target=i386v ;;
i[3456]86-*-linux*)	gdb_target=linux
		configdirs="${configdirs} gdbserver" ;;
i[3456]86-*-isc*)	gdb_target=i386v ;;
i[3456]86-*-mach3*)	gdb_target=i386m3 ;;
i[3456]86-*-mach*)	gdb_target=i386mach ;;
i[3456]86-*-gnu*)	gdb_target=i386gnu ;;
i[3456]86-*-netware*)	gdb_target=i386nw
		configdirs="${configdirs} nlm" ;;
i[3456]86-*-osf1mk*)	gdb_target=i386mk ;;
i[3456]86-*-cygwin32)	gdb_target=cygwin32  ;;
i960-*-bout*)		gdb_target=vxworks960 ;;
i960-nindy-coff*)	gdb_target=nindy960 ;;
i960-*-coff*)		gdb_target=mon960 ;;
i960-nindy-elf*)	gdb_target=nindy960 ;;
i960-*-elf*)		gdb_target=mon960 ;;

i960-*-nindy*)		gdb_target=nindy960 ;;
i960-*-vxworks*)	gdb_target=vxworks960 ;;

m68000-*-sunos3*)	gdb_target=sun2os3 ;;
m68000-*-sunos4*)	gdb_target=sun2os4 ;;

m68*-apollo*-bsd*)	gdb_target=apollo68b ;;
m68*-bull-sysv*)	gdb_target=dpx2 ;;
m68*-hp-bsd*)		gdb_target=hp300bsd ;;
m68*-hp-hpux*)		gdb_target=hp300hpux ;;
m68*-altos-*)		gdb_target=altos ;;
m68*-att-*)		gdb_target=3b1 ;;
m68*-cisco*-*)		gdb_target=cisco ;;
m68*-ericsson-*)	gdb_target=es1800 ;;
m68*-isi-*)		gdb_target=isi ;;
m68*-motorola-*)	gdb_target=delta68 ;;
m68*-netx-*)		gdb_target=vxworks68 ;;
m68*-sony-*)		gdb_target=news ;;
m68*-tandem-*)		gdb_target=st2000 ;;
m68*-rom68k-*)          gdb_target=monitor ;;
m68*-*bug-*)            gdb_target=monitor ;;
m68*-monitor-*)         gdb_target=monitor ;;
m68*-est-*)		gdb_target=monitor ;;
m68*-*-aout*)		gdb_target=monitor ;;
m68*-*-coff*)		gdb_target=monitor ;;
m68*-*-elf*)		gdb_target=monitor ;;
m68*-*-lynxos*)		gdb_target=m68klynx
		configdirs="${configdirs} gdbserver" ;;
m68*-*-netbsd*)		gdb_target=nbsd ;;
m68*-*-os68k*)		gdb_target=os68k ;;
m68*-*-sunos3*)		gdb_target=sun3os3 ;;
m68*-*-sunos4*)		gdb_target=sun3os4 ;;
m68*-*-sysv4*)		gdb_target=m68kv4 ;;
m68*-*-vxworks*)	gdb_target=vxworks68 ;;

m88*-harris-cxux*)	gdb_target=cxux ;;
m88*-motorola-sysv4*)	gdb_target=delta88v4 ;;
m88*-*-mach3*)		gdb_target=mach3 ;;
m88*-motorola-*)	gdb_target=delta88 ;;
m88*-*-*)		gdb_target=m88k ;;

mips64*-big-*)		gdb_target=bigmips64 ;;
mips*-big-*)		gdb_target=bigmips ;;
mips*-dec-mach3*)	gdb_target=mach3 ;;
mips*-dec-*)		gdb_target=decstation ;;
mips64*el-*-ecoff*)	gdb_target=embedl64 ;;
mips64*-*-ecoff*)	gdb_target=embed64 ;;
mips64*vr4300*el-*-elf*)	gdb_target=vr4300el ;;
mips64*vr4300*-*-elf*)	gdb_target=vr4300 ;;
mips64*vr4100*el-*-elf*)	gdb_target=vr4300el ;;
mips64*vr4100*-*-elf*)	gdb_target=vr4300 ;;
mips64*vr5000*el-*-elf*)	gdb_target=vr4300el ;;
mips64*vr5000*-*-elf*)	gdb_target=vr4300 ;;
mips64*el-*-elf*)	gdb_target=embedl64 ;;
mips64*-*-elf*)		gdb_target=embed64 ;;
mips*el-*-ecoff*)	gdb_target=embedl ;;
mips*-*-ecoff*)		gdb_target=embed ;;
# start-sanitize-gm
mips*-*-magic*)		gdb_target=embed ;;
# end-sanitize-gm
mips*el-*-elf*)		gdb_target=embedl ;;
mips*-*-elf*)		gdb_target=embed ;;
mips*-little-*)		gdb_target=littlemips ;;
mips*-sgi-irix5*)	gdb_target=irix5 ;;
mips*-sgi-*)		gdb_target=irix3 ;;
mips*-sony-*)		gdb_target=bigmips ;;
mips*-*-mach3*)		gdb_target=mach3 ;;
mips*-*-sysv4*)		gdb_target=mipsv4 ;;
mips*-*-sysv*)		gdb_target=bigmips ;;
mips*-*-riscos*)	gdb_target=bigmips ;;
mips*-*-vxworks*)       gdb_target=vxmips ;;

none-*-*)		gdb_target=none ;;

np1-*-*)		gdb_target=np1 ;;

ns32k-*-mach3*)		gdb_target=mach3 ;;
ns32k-*-netbsd*)	gdb_target=nbsd ;;
ns32k-utek-sysv*)	gdb_target=merlin ;;
ns32k-utek-*)		gdb_target=umax ;;

pn-*-*)			gdb_target=pn ;;
powerpc-*-macos*)	gdb_target=macos ;;
powerpc-*-netware*)	gdb_target=ppc-nw
			configdirs="${configdirs} nlm" ;;

powerpc-*-aix4*)	gdb_target=aix4 ;;
powerpc-*-aix*)		gdb_target=aix ;;
powerpcle-*-cygwin32)	gdb_target=cygwin32 ;;
powerpcle-*-solaris*)	gdb_target=solaris ;;
powerpc-*-eabi* | powerpc-*-linux* | powerpc-*-sysv* | powerpc-*-elf*)
			if test x"$powerpc_sim" = x"yes"; then
			  gdb_target=ppc-sim
			else
			  gdb_target=ppc-eabi
			fi ;;
powerpcle-*-eabi* | powerpcle-*-sysv* | powerpcle-*-elf*)
			if test x"$powerpc_sim" = x"yes"; then
			  gdb_target=ppcle-sim
			else
			  gdb_target=ppcle-eabi
			fi ;;

pyramid-*-*)		gdb_target=pyramid ;;

rs6000-*-lynxos*)	gdb_target=rs6000lynx ;;
rs6000-*-aix4*)		gdb_target=aix4 ;;
rs6000-*-*)		gdb_target=rs6000 ;;

sparc-*-aout*)		gdb_target=sparc-em ;;
sparc-*-coff*)		gdb_target=sparc-em ;;
sparc-*-elf*)		gdb_target=sparc-em ;;
sparc-*-lynxos*)	gdb_target=sparclynx
		configdirs="${configdirs} gdbserver" ;;
sparc-*-netbsd*)	gdb_target=nbsd ;;
sparc-*-solaris2*)	gdb_target=sun4sol2 ;;
sparc-*-sunos4*)	gdb_target=sun4os4 ;;
sparc-*-sunos5*)	gdb_target=sun4sol2 ;;
sparc-*-vxworks*)	gdb_target=vxsparc ;;
sparc-*-*)		gdb_target=sun4os4 ;;
sparclet-*-*)		gdb_target=sparclet;;
sparclite*-*-*)		gdb_target=sparclite ;;
# It's not clear what the right solution for "v8plus" systems is yet.
# For now, stick with sparc-sun-solaris2 since that's what config.guess
# should return.  Work is still needed to get gdb to print the 64 bit
# regs (some of which are usable in v8plus) so sp64sol.mt hasn't been
# deleted though presumably it should be eventually.
#sparc64-*-solaris2*)	gdb_target=sp64sol2 ;;
sparc64-*-*)		gdb_target=sp64 ;;

tahoe-*-*)		gdb_target=tahoe ;;

vax-*-*)		gdb_target=vax ;;

# start-sanitize-v850
v850-*-*)		gdb_target=v850 ;;

# end-sanitize-v850
w65-*-*)		gdb_target=w65 ;;

z8k-*-coff*)		gdb_target=z8k ;;

esac
Commit	Line	Data
943e243c SS	1	# Mappings from configurations to GDB target definitions. This is
	2	# invoked from the autoconf generated configure script.
	3
	4	# This file sets the following shell variables:
	5	# gdb_target_cpu generic name of CPU
	6	# gdb_target name of GDB target definition to use
	7
	8	# This file may also modify configdirs.
	9
	10	# Map target cpu into the config cpu subdirectory name.
	11	# The default is $target_cpu.
	12
	13	case "${target_cpu}" in
	14
	15	alpha) gdb_target_cpu=alpha ;;
	16	c[12]) gdb_target_cpu=convex ;;
	17	hppa*) gdb_target_cpu=pa ;;
	18	i[3456]86) gdb_target_cpu=i386 ;;
	19	m68*) gdb_target_cpu=m68k ;;
	20	m88*) gdb_target_cpu=m88k ;;
	21	mips*) gdb_target_cpu=mips ;;
	22	np1) gdb_target_cpu=gould ;;
	23	powerpc*) gdb_target_cpu=powerpc ;;
	24	pn) gdb_target_cpu=gould ;;
	25	pyramid) gdb_target_cpu=pyr ;;
	26	sparc*) gdb_target_cpu=sparc ;;
	27	*) gdb_target_cpu=$target_cpu ;;
	28
	29	esac
	30
	31	# map target info into gdb names.
	32
	33	case "${target}" in
	34
	35	a29k--aout) gdb_target=a29k ;;
	36	a29k--coff) gdb_target=a29k ;;
	37	a29k--elf) gdb_target=a29k ;;
	38	a29k--ebmon) gdb_target=a29k ;;
	39	a29k--kern) gdb_target=a29k-kern ;;
	40	a29k--none) gdb_target=a29k ;;
	41	a29k--sym1) gdb_target=ultra3 ;;
	42	a29k--udi) gdb_target=a29k-udi ;;
	43	a29k--vxworks) gdb_target=vx29k ;;
	44
	45	alpha--osf) gdb_target=alpha-osf1 ;;
	46	alpha--linux) gdb_target=alpha-linux ;;
	47
	48	# start-sanitize-arc
	49	arc--) gdb_target=arc ;;
	50	# end-sanitize-arc
	51
	52	arm--) gdb_target=arm ;;
	53
	54	c1--) gdb_target=convex ;;
	55	c2--) gdb_target=convex ;;
	56
	57	# start-sanitize-d10v
	58	d10v--) gdb_target=d10v ;;
	59	# end-sanitize-d10v
	60
	61	h8300--) gdb_target=h8300 ;;
	62	h8500--) gdb_target=h8500 ;;
	63
	64	sh--) gdb_target=sh ;;
65
66	hppa--bsd*) gdb_target=hppabsd ;;
67	hppa--pro*) gdb_target=hppapro ;;
68	hppa--hpux*) gdb_target=hppahpux ;;
69	hppa--hiux*) gdb_target=hppahpux ;;
70	hppa--osf*) gdb_target=hppaosf ;;
71
72	i[3456]86-sequent-bsd*) gdb_target=symmetry ;;
73	i[3456]86-sequent-sysv4*) gdb_target=ptx4 ;;
74	i[3456]86-sequent-sysv*) gdb_target=ptx ;;
75	i[3456]86-ncr-*) gdb_target=ncr3000 ;;
76	i[3456]86--aout) gdb_target=i386aout ;;
77	i[3456]86--coff) gdb_target=i386v ;;
78	i[3456]86--elf) gdb_target=i386v ;;
79	i[3456]86--aix) gdb_target=i386aix ;;
80	i[3456]86--bsd) gdb_target=i386bsd ;;
81	i[3456]86--freebsd) gdb_target=fbsd ;;
82	i[3456]86--netbsd) gdb_target=nbsd ;;
83	i[3456]86-*-os9k) gdb_target=i386os9k ;;
84	i[3456]86--go32) gdb_target=i386aout ;;
85	i[3456]86--lynxos) gdb_target=i386lynx
86	configdirs="${configdirs} gdbserver" ;;
87	i[3456]86--solaris) gdb_target=i386sol2 ;;
88	i[3456]86--sunos) gdb_target=sun386 ;;
89	i[3456]86--sysv4) gdb_target=i386v4 ;;
90	i[3456]86--sco) gdb_target=i386v ;;
91	i[3456]86--sysv) gdb_target=i386v ;;
92	i[3456]86--linux) gdb_target=linux
93	configdirs="${configdirs} gdbserver" ;;
94	i[3456]86--isc) gdb_target=i386v ;;
95	i[3456]86--mach3) gdb_target=i386m3 ;;
96	i[3456]86--mach) gdb_target=i386mach ;;
97	i[3456]86--gnu) gdb_target=i386gnu ;;
98	i[3456]86--netware) gdb_target=i386nw
99	configdirs="${configdirs} nlm" ;;
100	i[3456]86--osf1mk) gdb_target=i386mk ;;
101	i[3456]86-*-cygwin32) gdb_target=cygwin32 ;;
102	i960--bout) gdb_target=vxworks960 ;;
103	i960-nindy-coff*) gdb_target=nindy960 ;;
104	i960--coff) gdb_target=mon960 ;;
105	i960-nindy-elf*) gdb_target=nindy960 ;;
106	i960--elf) gdb_target=mon960 ;;
107
108	i960--nindy) gdb_target=nindy960 ;;
109	i960--vxworks) gdb_target=vxworks960 ;;
110
111	m68000--sunos3) gdb_target=sun2os3 ;;
112	m68000--sunos4) gdb_target=sun2os4 ;;
113
114	m68-apollo-bsd*) gdb_target=apollo68b ;;
115	m68-bull-sysv) gdb_target=dpx2 ;;
116	m68-hp-bsd) gdb_target=hp300bsd ;;
117	m68-hp-hpux) gdb_target=hp300hpux ;;
118	m68-altos-) gdb_target=altos ;;
119	m68-att-) gdb_target=3b1 ;;
120	m68-cisco-*) gdb_target=cisco ;;
121	m68-ericsson-) gdb_target=es1800 ;;
122	m68-isi-) gdb_target=isi ;;
123	m68-motorola-) gdb_target=delta68 ;;
124	m68-netx-) gdb_target=vxworks68 ;;
125	m68-sony-) gdb_target=news ;;
126	m68-tandem-) gdb_target=st2000 ;;
127	m68-rom68k-) gdb_target=monitor ;;
128	m68-bug-*) gdb_target=monitor ;;
129	m68-monitor-) gdb_target=monitor ;;
130	m68-est-) gdb_target=monitor ;;
131	m68--aout*) gdb_target=monitor ;;
132	m68--coff*) gdb_target=monitor ;;
133	m68--elf*) gdb_target=monitor ;;
134	m68--lynxos*) gdb_target=m68klynx
135	configdirs="${configdirs} gdbserver" ;;
136	m68--netbsd*) gdb_target=nbsd ;;
137	m68--os68k*) gdb_target=os68k ;;
138	m68--sunos3*) gdb_target=sun3os3 ;;
139	m68--sunos4*) gdb_target=sun3os4 ;;
140	m68--sysv4*) gdb_target=m68kv4 ;;
141	m68--vxworks*) gdb_target=vxworks68 ;;
142
143	m88-harris-cxux) gdb_target=cxux ;;
144	m88-motorola-sysv4) gdb_target=delta88v4 ;;
145	m88--mach3*) gdb_target=mach3 ;;
146	m88-motorola-) gdb_target=delta88 ;;
147	m88--*) gdb_target=m88k ;;
148
149	mips64-big-) gdb_target=bigmips64 ;;
150	mips-big-) gdb_target=bigmips ;;
151	mips-dec-mach3) gdb_target=mach3 ;;
152	mips-dec-) gdb_target=decstation ;;
153	mips64el--ecoff*) gdb_target=embedl64 ;;
154	mips64--ecoff*) gdb_target=embed64 ;;
155	mips64vr4300el--elf) gdb_target=vr4300el ;;
156	mips64vr4300--elf) gdb_target=vr4300 ;;
157	mips64vr4100el--elf) gdb_target=vr4300el ;;
158	mips64vr4100--elf) gdb_target=vr4300 ;;
159	mips64vr5000el--elf) gdb_target=vr4300el ;;
160	mips64vr5000--elf) gdb_target=vr4300 ;;
161	mips64el--elf*) gdb_target=embedl64 ;;
162	mips64--elf*) gdb_target=embed64 ;;
163	mipsel--ecoff*) gdb_target=embedl ;;
164	mips--ecoff*) gdb_target=embed ;;
165	# start-sanitize-gm
166	mips--magic*) gdb_target=embed ;;
167	# end-sanitize-gm
168	mipsel--elf*) gdb_target=embedl ;;
169	mips--elf*) gdb_target=embed ;;
170	mips-little-) gdb_target=littlemips ;;
171	mips-sgi-irix5) gdb_target=irix5 ;;
172	mips-sgi-) gdb_target=irix3 ;;
173	mips-sony-) gdb_target=bigmips ;;
174	mips--mach3*) gdb_target=mach3 ;;
175	mips--sysv4*) gdb_target=mipsv4 ;;
176	mips--sysv*) gdb_target=bigmips ;;
177	mips--riscos*) gdb_target=bigmips ;;
178	mips--vxworks*) gdb_target=vxmips ;;
179
180	none--) gdb_target=none ;;
181
182	np1--) gdb_target=np1 ;;
183
184	ns32k--mach3) gdb_target=mach3 ;;
185	ns32k--netbsd) gdb_target=nbsd ;;
186	ns32k-utek-sysv*) gdb_target=merlin ;;
187	ns32k-utek-*) gdb_target=umax ;;
188
189	pn--) gdb_target=pn ;;
190	powerpc--macos) gdb_target=macos ;;
191	powerpc--netware) gdb_target=ppc-nw
192	configdirs="${configdirs} nlm" ;;
193
194	powerpc--aix4) gdb_target=aix4 ;;
195	powerpc--aix) gdb_target=aix ;;
196	powerpcle-*-cygwin32) gdb_target=cygwin32 ;;
197	powerpcle--solaris) gdb_target=solaris ;;
198	powerpc--eabi \| powerpc--linux \| powerpc--sysv \| powerpc--elf)
199	if test x"$powerpc_sim" = x"yes"; then
200	gdb_target=ppc-sim
201	else
202	gdb_target=ppc-eabi
203	fi ;;
204	powerpcle--eabi \| powerpcle--sysv \| powerpcle--elf)
205	if test x"$powerpc_sim" = x"yes"; then
206	gdb_target=ppcle-sim
207	else
208	gdb_target=ppcle-eabi
209	fi ;;
210
211	pyramid--) gdb_target=pyramid ;;
212
213	rs6000--lynxos) gdb_target=rs6000lynx ;;
214	rs6000--aix4) gdb_target=aix4 ;;
215	rs6000--) gdb_target=rs6000 ;;
216
217	sparc--aout) gdb_target=sparc-em ;;
218	sparc--coff) gdb_target=sparc-em ;;
219	sparc--elf) gdb_target=sparc-em ;;
220	sparc--lynxos) gdb_target=sparclynx
221	configdirs="${configdirs} gdbserver" ;;
222	sparc--netbsd) gdb_target=nbsd ;;
223	sparc--solaris2) gdb_target=sun4sol2 ;;
224	sparc--sunos4) gdb_target=sun4os4 ;;
225	sparc--sunos5) gdb_target=sun4sol2 ;;
226	sparc--vxworks) gdb_target=vxsparc ;;
227	sparc--) gdb_target=sun4os4 ;;
228	sparclet--) gdb_target=sparclet;;
229	sparclite--*) gdb_target=sparclite ;;
230	# It's not clear what the right solution for "v8plus" systems is yet.
231	# For now, stick with sparc-sun-solaris2 since that's what config.guess
232	# should return. Work is still needed to get gdb to print the 64 bit
233	# regs (some of which are usable in v8plus) so sp64sol.mt hasn't been
234	# deleted though presumably it should be eventually.
235	#sparc64--solaris2) gdb_target=sp64sol2 ;;
236	sparc64--) gdb_target=sp64 ;;
237
238	tahoe--) gdb_target=tahoe ;;
239
240	vax--) gdb_target=vax ;;
241
242	# start-sanitize-v850
243	v850--) gdb_target=v850 ;;
244
245	# end-sanitize-v850
246	w65--) gdb_target=w65 ;;
247
248	z8k--coff) gdb_target=z8k ;;
249
250	esac