libgo patch committed: Fix AIX build

libgo patch committed: Fix AIX build

[Ian Lance Taylor]

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This patch by Clément Chigot fixes the build of libgo on AIX, which
was broken in the update to the Go 1.18 release.  Bootstrapped and ran
Go testsuite on x86_64-unknown-linux-gnu.  Committed to mainline.

Ian

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98a7a7b5275b226932f503cc1dcc21fd9a9f8476
diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 424bbebfeed..5cf2ace711b 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-45fd14ab8baf5e86012a808426f8ef52c1d77943
+34dece725f9f8826f4abe86209112626867bc716
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
diff --git a/libgo/go/internal/syscall/unix/ioctl_aix.go b/libgo/go/internal/syscall/unix/ioctl_aix.go
index af105d6158b..1a768048ba8 100644
--- a/libgo/go/internal/syscall/unix/ioctl_aix.go
+++ b/libgo/go/internal/syscall/unix/ioctl_aix.go
@@ -12,7 +12,7 @@ import (
 //extern __go_ioctl_ptr
 func ioctl(int32, int32, unsafe.Pointer) int32
 
-func Ioctl(fd int, cmd int, args uintptr) (err error) {
+func Ioctl(fd int, cmd int, args unsafe.Pointer) (err error) {
 	if ioctl(int32(fd), int32(cmd), unsafe.Pointer(args)) < 0 {
 		return syscall.GetErrno()
 	}
diff --git a/libgo/go/os/user/listgroups_unix.go b/libgo/go/os/user/listgroups_unix.go
index b3cf839b3ec..af9b544bcbe 100644
--- a/libgo/go/os/user/listgroups_unix.go
+++ b/libgo/go/os/user/listgroups_unix.go
@@ -14,7 +14,6 @@ import (
 	"io"
 	"os"
 	"strconv"
-	"syscall"
 )
 
 const groupFile = "/etc/group"
diff --git a/libgo/go/runtime/malloc.go b/libgo/go/runtime/malloc.go
index e5ab8dedafa..7c019ee42d3 100644
--- a/libgo/go/runtime/malloc.go
+++ b/libgo/go/runtime/malloc.go
@@ -321,7 +321,7 @@ const (
 	//
 	// On other platforms, the user address space is contiguous
 	// and starts at 0, so no offset is necessary.
-	arenaBaseOffset = 0xffff800000000000*goarch.IsAmd64 + 0x0a00000000000000*goos.IsAix
+	arenaBaseOffset = 0xffff800000000000*goarch.IsAmd64 + 0x0a00000000000000*goos.IsAix*goarch.IsPpc64
 	// A typed version of this constant that will make it into DWARF (for viewcore).
 	arenaBaseOffsetUintptr = uintptr(arenaBaseOffset)
 
diff --git a/libgo/go/runtime/os_aix.go b/libgo/go/runtime/os_aix.go
index d43765ab884..943cd2205d1 100644
--- a/libgo/go/runtime/os_aix.go
+++ b/libgo/go/runtime/os_aix.go
@@ -7,7 +7,6 @@
 package runtime
 
 import (
-	"internal/abi"
 	"unsafe"
 )