t-ppccomm revision 117395 
1# Common support for PowerPC ELF targets (both EABI and SVR4).
2
3LIB2FUNCS_EXTRA = tramp.S
4
5# This one can't end up in shared libgcc
6LIB2FUNCS_STATIC_EXTRA = eabi.S
7
8# We want fine grained libraries, so use the new code to build the
9# floating point emulation libraries.
10FPBIT = fp-bit.c
11DPBIT = dp-bit.c
12
13
14dp-bit.c: $(srcdir)/config/fp-bit.c
15	cat $(srcdir)/config/fp-bit.c > dp-bit.c
16
17fp-bit.c: $(srcdir)/config/fp-bit.c
18	echo '#define FLOAT' > fp-bit.c
19	cat $(srcdir)/config/fp-bit.c >> fp-bit.c
20
21eabi.S: $(srcdir)/config/rs6000/eabi.asm
22	cat $(srcdir)/config/rs6000/eabi.asm > eabi.S
23
24tramp.S: $(srcdir)/config/rs6000/tramp.asm
25	cat $(srcdir)/config/rs6000/tramp.asm > tramp.S
26
27# Switch synonyms
28MULTILIB_MATCHES_FLOAT	= msoft-float=mcpu?401 \
29			  msoft-float=mcpu?403 \
30			  msoft-float=mcpu?405 \
31			  msoft-float=mcpu?ec603e \
32			  msoft-float=mcpu?801 \
33			  msoft-float=mcpu?821 \
34			  msoft-float=mcpu?823 \
35			  msoft-float=mcpu?860
36MULTILIB_MATCHES_ENDIAN	= mlittle=mlittle-endian mbig=mbig-endian
37MULTILIB_MATCHES_SYSV	= mcall-sysv=mcall-sysv-eabi mcall-sysv=mcall-sysv-noeabi mcall-sysv=mcall-linux mcall-sysv=mcall-netbsd
38
39LIBGCC = stmp-multilib
40INSTALL_LIBGCC = install-multilib
41EXTRA_MULTILIB_PARTS = crtbegin$(objext) crtend$(objext) \
42  crtbeginS$(objext) crtendS$(objext) crtbeginT$(objext) \
43  ecrti$(objext) ecrtn$(objext) \
44  ncrti$(objext) ncrtn$(objext) \
45  crtsavres$(objext)
46
47# We build {e,n}crti.o and {e,n}crtn.o, which serve to add begin and
48# end labels to all of the special sections used when we link using gcc.
49
50# Assemble startup files.
51ecrti.S: $(srcdir)/config/rs6000/eabi-ci.asm
52	cat $(srcdir)/config/rs6000/eabi-ci.asm >ecrti.S
53
54ecrtn.S: $(srcdir)/config/rs6000/eabi-cn.asm
55	cat $(srcdir)/config/rs6000/eabi-cn.asm >ecrtn.S
56
57ncrti.S: $(srcdir)/config/rs6000/sol-ci.asm
58	cat $(srcdir)/config/rs6000/sol-ci.asm >ncrti.S
59
60ncrtn.S: $(srcdir)/config/rs6000/sol-cn.asm
61	cat $(srcdir)/config/rs6000/sol-cn.asm >ncrtn.S
62
63crtsavres.S: $(srcdir)/config/rs6000/crtsavres.asm
64	cat $(srcdir)/config/rs6000/crtsavres.asm >crtsavres.S
65
66# Build multiple copies of ?crt{i,n}.o, one for each target switch.
67$(T)ecrti$(objext): ecrti.S
68	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrti.S -o $(T)ecrti$(objext)
69
70$(T)ecrtn$(objext): ecrtn.S
71	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ecrtn.S -o $(T)ecrtn$(objext)
72
73$(T)ncrti$(objext): ncrti.S
74	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ncrti.S -o $(T)ncrti$(objext)
75
76$(T)ncrtn$(objext): ncrtn.S
77	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c ncrtn.S -o $(T)ncrtn$(objext)
78
79$(T)crtsavres$(objext): crtsavres.S
80	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c crtsavres.S -o $(T)crtsavres$(objext)
81
82# It is important that crtbegin.o, etc., aren't surprised by stuff in .sdata.
83CRTSTUFF_T_CFLAGS = -msdata=none
84# Make sure crt*.o are built with -fPIC even if configured with 
85# --enable-shared --disable-multilib
86CRTSTUFF_T_CFLAGS_S = -fPIC -msdata=none
87