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* [gcc r13-3571] Libvtv: Add loongarch support.
@ 2022-10-31 9:35 LuluCheng
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From: LuluCheng @ 2022-10-31 9:35 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:27b9e1158b3e819ba77367b6b0d6161186b0ca7f
commit r13-3571-g27b9e1158b3e819ba77367b6b0d6161186b0ca7f
Author: Lulu Cheng <chenglulu@loongson.cn>
Date: Tue Sep 27 15:28:43 2022 +0800
Libvtv: Add loongarch support.
The loongarch64 specification permits page sizes of 4KiB, 16KiB and 64KiB,
but only 16KiB pages are supported for now.
Co-Authored-By: qijingwen <qijingwen@loongson.cn>
include/ChangeLog:
* vtv-change-permission.h (defined): Determines whether the macro
__loongarch_lp64 is defined
(VTV_PAGE_SIZE): Set VTV_PAGE_SIZE to 16KiB for loongarch64.
libvtv/ChangeLog:
* configure.tgt: Add loongarch support.
Diff:
---
include/vtv-change-permission.h | 4 ++++
libvtv/configure.tgt | 3 +++
2 files changed, 7 insertions(+)
diff --git a/include/vtv-change-permission.h b/include/vtv-change-permission.h
index 70bdad92bca..e7b9294a081 100644
--- a/include/vtv-change-permission.h
+++ b/include/vtv-change-permission.h
@@ -48,6 +48,10 @@ extern void __VLTChangePermission (int);
#else
#if defined(__sun__) && defined(__svr4__) && defined(__sparc__)
#define VTV_PAGE_SIZE 8192
+#elif defined(__loongarch_lp64)
+/* The page size is configurable by the kernel to be 4, 16 or 64 KiB.
+ For now, only the default page size of 16KiB is supported. */
+#define VTV_PAGE_SIZE 16384
#else
#define VTV_PAGE_SIZE 4096
#endif
diff --git a/libvtv/configure.tgt b/libvtv/configure.tgt
index aa2a3f675b8..6cdd1e97ab1 100644
--- a/libvtv/configure.tgt
+++ b/libvtv/configure.tgt
@@ -50,6 +50,9 @@ case "${target}" in
;;
x86_64-*-darwin[1]* | i?86-*-darwin[1]*)
;;
+ loongarch*-*-linux*)
+ VTV_SUPPORTED=yes
+ ;;
*)
;;
esac
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