v1 - > v2:
1. When the macro __loongarch_lp64 is defined, the VTV_PAGE_SIZE is set to 64K.
2. In the vtv_malloc.cc file __vtv_malloc_init function, it does not check
whether VTV_PAGE_SIZE is equal to the system page size, if the macro
__loongarch_lp64 is defined.
All regression tests of libvtv passed.
=== libvtv Summary ===
# of expected passes 176
But I haven't tested the performance yet.
-----------------------------------
Co-Authored-By: qijingwen <qijing...@loongson.cn>
include/ChangeLog:
* vtv-change-permission.h (defined):
(VTV_PAGE_SIZE): Under the loongarch64 architecture,
set VTV_PAGE_SIZE to 64K.
libvtv/ChangeLog:
* configure.tgt: Add loongarch support.
* vtv_malloc.cc (defined): If macro __loongarch_lp64 is
defined, then don't check whether VTV_PAGE_SIZE is the
same as the system page size.
---
include/vtv-change-permission.h | 4 ++++
libvtv/configure.tgt | 3 +++
libvtv/vtv_malloc.cc | 5 +++++
3 files changed, 12 insertions(+)
diff --git a/include/vtv-change-permission.h b/include/vtv-change-permission.h
index 70bdad92bca..64e419c29d5 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
+/* LoongArch architecture 64-bit system supports 4k,16k and 64k
+ page size, which is set to the maximum value here. */
+#elif defined(__loongarch_lp64)
+#define VTV_PAGE_SIZE 65536
#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
diff --git a/libvtv/vtv_malloc.cc b/libvtv/vtv_malloc.cc
index 67c5de6d4e9..45804b8d7f8 100644
--- a/libvtv/vtv_malloc.cc
+++ b/libvtv/vtv_malloc.cc
@@ -212,6 +212,11 @@ __vtv_malloc_init (void)
#if defined (__CYGWIN__) || defined (__MINGW32__)
if (VTV_PAGE_SIZE != sysconf_SC_PAGE_SIZE())
+#elif defined (__loongarch_lp64)
+ /* I think that under the LoongArch 64-bit system, VTV_PAGE_SIZE is set
+ to the maximum value of 64K supported by the system, so there is no
+ need to judge here. */
+ if (false)
#else
if (VTV_PAGE_SIZE != sysconf (_SC_PAGE_SIZE))
#endif
--
2.31.1
