go/types: implement SizesFor for gccgo

    
    Move the architecture-specific settings out of configure.ac into a new
    shell script goarch.sh.  Use the new script to collect the values for
    all architectures to make them available in go/types.
    
    Also fix cmd/vet to pass the right compiler when it calls SizesFor.
    
    This fixes cmd/vet for systems that are not implemented in the gc
    toolchain, such as alpha and ia64.
    
    Reviewed-on: https://go-review.googlesource.com/87635

From-SVN: r256655

1 files changed, 22 insertions, 124 deletions

diff --git a/libgo/configure b/libgo/configure
index 28e283c6316..d0550c37c55 100755
--- a/libgo/configure
+++ b/libgo/configure
@@ -632,14 +632,6 @@ GO_LIBCALL_OS_ARCH_FILE
 GO_LIBCALL_OS_FILE
 ALLGOARCHFAMILY
 ALLGOARCH
-GOARCH_MINFRAMESIZE
-GOARCH_HUGEPAGESIZE
-GOARCH_INT64ALIGN
-GOARCH_PCQUANTUM
-GOARCH_PHYSPAGESIZE
-GOARCH_CACHELINESIZE
-GOARCH_BIGENDIAN
-GOARCH_FAMILY
 GOARCH
 USE_DEJAGNU
 ALLGOOS
@@ -11114,7 +11106,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11118 "configure"
+#line 11109 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11220,7 +11212,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11224 "configure"
+#line 11215 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13644,46 +13636,41 @@ esac
 # All known GOARCH values.  This is the union of all architectures
 # supported by the gofrontend and all architectures supported by the
 # gc toolchain.
-# N.B. Keep in sync with gcc/testsuite/go.test/go-test.exp (go-set-goarch).
+# To add a new architecture:
+# - add it to this list
+# - if appropriate, add an entry to ALLGOARCHFAMILY below
+# - add an entry to the case on ${host} below to set GOARCH
+# - update goarchList in libgo/go/go/build/syslist.go
+# - update goarch.sh to report the values for this architecture
+# - update go-set-goarch in gcc/testsuite/go.test/go-test.exp
+# - update ptrSizeMap and intSizeMap in libgo/go/cmd/cgo/main.go
+# - update arch lists in libgo/match.sh
+# - update arch lists in libgo/testsuite/gotest
+# - update +build lines in several places
+#   - libgo/go/runtime/lfstack_NNbit.go
+#   - libgo/go/runtime/hashNN.go
+#   - libgo/go/runtime/unalignedN.go
+#   - libgo/go/syscall/endian_XX.go
+#   - possibly others
+# - possibly update files in libgo/go/internal/syscall/unix
 ALLGOARCH="386 alpha amd64 amd64p32 arm armbe arm64 arm64be ia64 m68k mips mipsle mips64 mips64le mips64p32 mips64p32le ppc ppc64 ppc64le s390 s390x sh shbe sparc sparc64"
 
-# All known GOARCH_FAMILY values.
+# All known GOARCH family values.
 ALLGOARCHFAMILY="I386 ALPHA AMD64 ARM ARM64 IA64 M68K MIPS MIPS64 PPC PPC64 S390 S390X SH SPARC SPARC64"
 
 GOARCH=unknown
-GOARCH_FAMILY=unknown
-GOARCH_BIGENDIAN=false
-GOARCH_CACHELINESIZE=64
-GOARCH_PHYSPAGESIZE=4096
-GOARCH_PCQUANTUM=1
-GOARCH_INT64ALIGN=8
-GOARCH_HUGEPAGESIZE=0
-GOARCH_MINFRAMESIZE=0
 case ${host} in
   alpha*-*-*)
     GOARCH=alpha
-    GOARCH_FAMILY=ALPHA
-    GOARCH_PHYSPAGESIZE=8192
-    GOARCH_PCQUANTUM=4
     ;;
   aarch64-*-*)
     GOARCH=arm64
-    GOARCH_FAMILY=ARM64
-    GOARCH_CACHELINESIZE=32
-    GOARCH_PHYSPAGESIZE=65536
-    GOARCH_PCQUANTUM=4
-    GOARCH_MINFRAMESIZE=8
     ;;
   arm*-*-* | strongarm*-*-* | ep9312*-*-* | xscale-*-*)
     GOARCH=arm
-    GOARCH_FAMILY=ARM
-    GOARCH_CACHELINESIZE=32
-    GOARCH_PCQUANTUM=4
-    GOARCH_MINFRAMESIZE=4
     case ${host} in
       arm*b*-*-*)
 	GOARCH=armbe
-        GOARCH_BIGENDIAN=true
 	;;
     esac
     ;;
@@ -13697,31 +13684,16 @@ case ${host} in
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
   GOARCH=386
-GOARCH_FAMILY=I386
-GOARCH_INT64ALIGN=4
-GOARCH_HUGEPAGESIZE="1 << 21"
-
 else
   GOARCH=amd64
-GOARCH_FAMILY=AMD64
-GOARCH_HUGEPAGESIZE="1 << 21"
-
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     ;;
   ia64-*-*)
     GOARCH=ia64
-    GOARCH_FAMILY=IA64
-    GOARCH_CACHELINESIZE=128
-    GOARCH_PHYSPAGESIZE=65536
     ;;
   m68k*-*-*)
     GOARCH=m68k
-    GOARCH_FAMILY=M68K
-    GOARCH_BIGENDIAN=true
-    GOARCH_CACHELINESIZE=16
-    GOARCH_PCQUANTUM=4
-    GOARCH_INT64ALIGN=2
     ;;
   mips*-*-*)
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -13767,27 +13739,11 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     "n32") GOARCH=mips64p32 ;;
     "n64") GOARCH=mips64 ;;
     esac
-    case "$mips_abi" in
-    "o32" | "n32")
-        GOARCH_FAMILY=MIPS
-	GOARCH_MINFRAMESIZE=4
-        ;;
-    "n64")
-        GOARCH_FAMILY=MIPS64
-	GOARCH_MINFRAMESIZE=8
-        ;;
-    esac
     case "${host}" in
     mips*el-*-*)
         GOARCH="${GOARCH}le"
         ;;
-    *)
-	GOARCH_BIGENDIAN=true
-        ;;
     esac
-    GOARCH_CACHELINESIZE=32
-    GOARCH_PHYSPAGESIZE=16384
-    GOARCH_PCQUANTUM=4
     ;;
   rs6000*-*-* | powerpc*-*-*)
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -13799,12 +13755,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
   GOARCH=ppc
-GOARCH_FAMILY=PPC
-GOARCH_BIGENDIAN=true
-
 else
 
-GOARCH_FAMILY=PPC64
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -13814,18 +13766,12 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
   GOARCH=ppc64le
-
 else
   GOARCH=ppc64
-GOARCH_BIGENDIAN=true
-
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-    GOARCH_PHYSPAGESIZE=65536
-    GOARCH_PCQUANTUM=4
-    GOARCH_MINFRAMESIZE=32
     ;;
   s390*-*-*)
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -13837,49 +13783,16 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
   GOARCH=s390
-GOARCH_FAMILY=S390
-GOARCH_MINFRAMESIZE=4
-
 else
   GOARCH=s390x
-GOARCH_FAMILY=S390X
-GOARCH_MINFRAMESIZE=8
-
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-    GOARCH_BIGENDIAN=true
-    GOARCH_CACHELINESIZE=256
-    GOARCH_PCQUANTUM=2
     ;;
-  sh3eb*-*-*)
+  sh3eb*-*-* | sh4eb*-*-*)
     GOARCH=shbe
-    GOARCH_FAMILY=SH
-    GOARCH_BIGENDIAN=true
-    GOARCH_CACHELINESIZE=16
-    GOARCH_PCQUANTUM=2
-    GOARCH_MINFRAMESIZE=4
     ;;
-  sh3*-*-*)
+  sh3*-*-* | sh4*-*-*)
     GOARCH=sh
-    GOARCH_FAMILY=SH
-    GOARCH_CACHELINESIZE=16
-    GOARCH_PCQUANTUM=2
-    GOARCH_MINFRAMESIZE=4
-    ;;
-  sh4eb*-*-*)
-    GOARCH=shbe
-    GOARCH_FAMILY=SH
-    GOARCH_BIGENDIAN=true
-    GOARCH_CACHELINESIZE=32
-    GOARCH_PCQUANTUM=2
-    GOARCH_MINFRAMESIZE=4
-    ;;
-  sh4*-*-*)
-    GOARCH=sh
-    GOARCH_FAMILY=SH
-    GOARCH_CACHELINESIZE=32
-    GOARCH_PCQUANTUM=2
-    GOARCH_MINFRAMESIZE=4
     ;;
   sparc*-*-*)
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -13891,31 +13804,16 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
   GOARCH=sparc
-GOARCH_FAMILY=SPARC
-
 else
   GOARCH=sparc64
-GOARCH_FAMILY=SPARC64
-
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-    GOARCH_BIGENDIAN=true
-    GOARCH_PHYSPAGESIZE=8192
-    GOARCH_PCQUANTUM=4
     ;;
 esac
 
 
 
 
-
-
-
-
-
-
-
-
 GO_LIBCALL_OS_FILE=
 GO_LIBCALL_OS_ARCH_FILE=
 GO_SYSCALL_OS_FILE=