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authorSteve Capper <steve.capper@linaro.org>2013-04-10 14:51:12 +0100
committerSteve Capper <steve.capper@linaro.org>2013-09-10 11:55:09 +0100
commit216510ca227db4f084cb348ed11487f68e69a3af (patch)
tree5bb1ea5c51788522c476fed4d298cd92e2618440
parent7649454b6fed355bf53517d5106ae211b533aced (diff)
downloadlibhugetlbfs-216510ca227db4f084cb348ed11487f68e69a3af.tar.gz
Aarch64 support.
This patch adds support for Aarch64. As with ARMv7, We do not add the xBT/xBDT style linker scripts as these have been deprecated in favour of adjusting the page sizes via command line parameter to ld. Signed-off-by: Steve Capper <steve.capper@linaro.org>
-rw-r--r--Makefile7
-rwxr-xr-xld.hugetlbfs2
-rw-r--r--sys-aarch64elf.S34
3 files changed, 42 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 48205af..0e61701 100644
--- a/Makefile
+++ b/Makefile
@@ -57,6 +57,12 @@ TMPLIB32 = lib
ELF32 += armelf_linux_eabi
CUSTOM_LDSCRIPTS = no
else
+ifeq ($(ARCH),aarch64)
+CC64 = gcc
+ELF64 = aarch64elf
+TMPLIB64 = lib64
+CUSTOM_LDSCRIPTS = no
+else
ifeq ($(ARCH),i386)
CC32 = gcc
ELF32 = elf_i386
@@ -100,6 +106,7 @@ endif
endif
endif
endif
+endif
ifdef CC32
OBJDIRS += obj32
diff --git a/ld.hugetlbfs b/ld.hugetlbfs
index d6d12c4..5128aa2 100755
--- a/ld.hugetlbfs
+++ b/ld.hugetlbfs
@@ -91,7 +91,7 @@ case "$EMU" in
elf32ppclinux|elf64ppc) HPAGE_SIZE=$((16*$MB)) SLICE_SIZE=$((256*$MB)) ;;
elf_i386|elf_x86_64) HPAGE_SIZE=$((4*$MB)) SLICE_SIZE=$HPAGE_SIZE ;;
elf_s390|elf64_s390) HPAGE_SIZE=$((1*$MB)) SLICE_SIZE=$HPAGE_SIZE ;;
-armelf_linux_eabi) HPAGE_SIZE=$((2*$MB)) SLICE_SIZE=$HPAGE_SIZE ;;
+armelf_linux_eabi|aarch64elf) HPAGE_SIZE=$((2*MB)) SLICE_SIZE=$HPAGE_SIZE ;;
esac
if [ "$HTLB_ALIGN" == "slice" ]; then
diff --git a/sys-aarch64elf.S b/sys-aarch64elf.S
new file mode 100644
index 0000000..54799d3
--- /dev/null
+++ b/sys-aarch64elf.S
@@ -0,0 +1,34 @@
+/*
+ * libhugetlbfs - Easy use of Linux hugepages
+ * Copyright (C) 2013 Linaro Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * version 2.1 as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+ .text
+
+ .globl direct_syscall
+
+
+direct_syscall:
+ uxtw x8, w0
+ mov x0, x1
+ mov x1, x2
+ mov x2, x3
+ mov x3, x4
+ mov x4, x5
+ mov x5, x6
+ mov x6, x7
+ svc 0x0
+ ret