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, 29 insertions, 122 deletions

diff --git a/libgo/configure.ac b/libgo/configure.ac
index 1077c9e114d..c497e78c31a 100644
--- a/libgo/configure.ac
+++ b/libgo/configure.ac
@@ -207,46 +207,41 @@ AC_SUBST(USE_DEJAGNU)
 # 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 ${host} in
       arm*b*-*-*)
 	GOARCH=armbe
-        GOARCH_BIGENDIAN=true
 	;;
     esac
     ;;
@@ -257,29 +252,14 @@ changequote([,])dnl
 #ifdef __x86_64__
 #error 64-bit
 #endif],
-[GOARCH=386
-GOARCH_FAMILY=I386
-GOARCH_INT64ALIGN=4
-GOARCH_HUGEPAGESIZE="1 << 21"
-],
-[GOARCH=amd64
-GOARCH_FAMILY=AMD64
-GOARCH_HUGEPAGESIZE="1 << 21"
-])
+[GOARCH=386],
+[GOARCH=amd64])
     ;;
   ia64-*-*)
     GOARCH=ia64
-    GOARCH_FAMILY=IA64
-    GOARCH_CACHELINESIZE=128
-    GOARCH_PHYSPAGESIZE=65536
     ;;
   m68k*-*-*)
     GOARCH=m68k
-    GOARCH_FAMILY=M68K
-    GOARCH_BIGENDIAN=true
-    GOARCH_CACHELINESIZE=16
-    GOARCH_PCQUANTUM=4
-    GOARCH_INT64ALIGN=2
     ;;
   mips*-*-*)
     AC_COMPILE_IFELSE([
@@ -304,123 +284,50 @@ GOARCH_HUGEPAGESIZE="1 << 21"
     "n32") GOARCH=mips64p32 ;;
     "n64") GOARCH=mips64 ;;
     esac
-    case "$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*-*-*)
     AC_COMPILE_IFELSE([
 #ifdef _ARCH_PPC64
 #error 64-bit
 #endif],
-[GOARCH=ppc
-GOARCH_FAMILY=PPC
-GOARCH_BIGENDIAN=true
-],
+[GOARCH=ppc],
     [
-GOARCH_FAMILY=PPC64
 AC_COMPILE_IFELSE([
 #if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__)
 #error 64be
 #endif],
-[GOARCH=ppc64le
-],
-[GOARCH=ppc64
-GOARCH_BIGENDIAN=true
-])])
-    GOARCH_PHYSPAGESIZE=65536
-    GOARCH_PCQUANTUM=4
-    GOARCH_MINFRAMESIZE=32
+[GOARCH=ppc64le],
+[GOARCH=ppc64])])
     ;;
   s390*-*-*)
     AC_COMPILE_IFELSE([
 #if defined(__s390x__)
 #error 64-bit
 #endif],
-[GOARCH=s390
-GOARCH_FAMILY=S390
-GOARCH_MINFRAMESIZE=4
-], [GOARCH=s390x
-GOARCH_FAMILY=S390X
-GOARCH_MINFRAMESIZE=8
-])
-    GOARCH_BIGENDIAN=true
-    GOARCH_CACHELINESIZE=256
-    GOARCH_PCQUANTUM=2
-    ;;
-  sh3eb*-*-*)
-    GOARCH=shbe
-    GOARCH_FAMILY=SH
-    GOARCH_BIGENDIAN=true
-    GOARCH_CACHELINESIZE=16
-    GOARCH_PCQUANTUM=2
-    GOARCH_MINFRAMESIZE=4
+[GOARCH=s390],
+[GOARCH=s390x])
     ;;
-  sh3*-*-*)
-    GOARCH=sh
-    GOARCH_FAMILY=SH
-    GOARCH_CACHELINESIZE=16
-    GOARCH_PCQUANTUM=2
-    GOARCH_MINFRAMESIZE=4
-    ;;
-  sh4eb*-*-*)
+  sh3eb*-*-* | sh4eb*-*-*)
     GOARCH=shbe
-    GOARCH_FAMILY=SH
-    GOARCH_BIGENDIAN=true
-    GOARCH_CACHELINESIZE=32
-    GOARCH_PCQUANTUM=2
-    GOARCH_MINFRAMESIZE=4
     ;;
-  sh4*-*-*)
+  sh3*-*-* | sh4*-*-*)
     GOARCH=sh
-    GOARCH_FAMILY=SH
-    GOARCH_CACHELINESIZE=32
-    GOARCH_PCQUANTUM=2
-    GOARCH_MINFRAMESIZE=4
     ;;
   sparc*-*-*)
     AC_COMPILE_IFELSE([
 #if defined(__sparcv9) || defined(__arch64__)
 #error 64-bit
 #endif],
-[GOARCH=sparc
-GOARCH_FAMILY=SPARC
-],
-[GOARCH=sparc64
-GOARCH_FAMILY=SPARC64
-])
-    GOARCH_BIGENDIAN=true
-    GOARCH_PHYSPAGESIZE=8192
-    GOARCH_PCQUANTUM=4
+[GOARCH=sparc],
+[GOARCH=sparc64])
     ;;
 esac
 AC_SUBST(GOARCH)
-AC_SUBST(GOARCH_FAMILY)
-AC_SUBST(GOARCH_BIGENDIAN)
-AC_SUBST(GOARCH_CACHELINESIZE)
-AC_SUBST(GOARCH_PHYSPAGESIZE)
-AC_SUBST(GOARCH_PCQUANTUM)
-AC_SUBST(GOARCH_INT64ALIGN)
-AC_SUBST(GOARCH_HUGEPAGESIZE)
-AC_SUBST(GOARCH_MINFRAMESIZE)
 AC_SUBST(ALLGOARCH)
 AC_SUBST(ALLGOARCHFAMILY)