add loongarch64 support (driver)

Signed-off-by: yzewei <[email protected]>
falcosecurity · Apr 18, 2024 · e5328b9 · e5328b9
1 parent 6792229
commit e5328b9
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Showing 15 changed files with 1,000 additions and 19 deletions.
diff --git a/cmake/modules/protobuf.cmake b/cmake/modules/protobuf.cmake
@@ -47,8 +47,8 @@ else()
 		ExternalProject_Add(protobuf
 			PREFIX "${PROJECT_BINARY_DIR}/protobuf-prefix"
 			DEPENDS zlib
-			URL "https://github.com/protocolbuffers/protobuf/releases/download/v3.17.3/protobuf-cpp-3.17.3.tar.gz"
-			URL_HASH "SHA256=51cec99f108b83422b7af1170afd7aeb2dd77d2bcbb7b6bad1f92509e9ccf8cb"
+			URL "https://github.com/protocolbuffers/protobuf/releases/download/v3.20.3/protobuf-cpp-3.20.3.tar.gz"
+			URL_HASH "SHA256=e51cc8fc496f893e2a48beb417730ab6cbcb251142ad8b2cd1951faa5c76fe3d"
 			# TODO what if using system zlib?
 			CONFIGURE_COMMAND CPPFLAGS=-I${ZLIB_INCLUDE} LDFLAGS=-L${ZLIB_SRC} ./configure --with-zlib ${PROTOBUF_CONFIGURE_FLAGS} --prefix=${PROTOBUF_INSTALL_DIR}
 			BUILD_COMMAND make

diff --git a/driver/CMakeLists.txt b/driver/CMakeLists.txt
@@ -14,7 +14,8 @@ if((NOT TARGET_ARCH STREQUAL "x86_64") AND
    (NOT TARGET_ARCH STREQUAL "aarch64") AND
    (NOT TARGET_ARCH STREQUAL "s390x") AND
    (NOT TARGET_ARCH STREQUAL "riscv64") AND
-   (NOT TARGET_ARCH STREQUAL "ppc64le"))
+   (NOT TARGET_ARCH STREQUAL "ppc64le") AND
+   (NOT TARGET_ARCH STREQUAL "loongarch64"))
 	message(WARNING "Target architecture not officially supported by our drivers!")
 else()
 	# Load current kernel version
@@ -28,6 +29,8 @@ else()
 	set(kmod_min_kver_map_s390x 2.6)
 	set(kmod_min_kver_map_riscv64 5.0)
 	set(kmod_min_kver_map_ppc64le 2.6)
+	set(kmod_min_kver_map_loongarch64 5.10)
+
 	if (LINUX_KERNEL_VERSION VERSION_LESS ${kmod_min_kver_map_${TARGET_ARCH}})
 		message(WARNING "[KMOD] To run this driver you need a Linux kernel version >= ${kmod_min_kver_map_${TARGET_ARCH}} but actual kernel version is: ${UNAME_RESULT}")
 	endif()

diff --git a/driver/feature_gates.h b/driver/feature_gates.h
@@ -61,7 +61,7 @@ or GPL2.txt for full copies of the license.
  * been introduced in the following kernel release:
  * https://github.com/torvalds/linux/commit/0a16b6075843325dc402edf80c1662838b929aff
  */
-#if defined(CONFIG_ARM64) || defined(CONFIG_S390) || defined(CONFIG_RISCV)
+#if defined(CONFIG_ARM64) || defined(CONFIG_S390) || defined(CONFIG_RISCV) || defined(CONFIG_LOONGARCH)
 	#define CAPTURE_SCHED_PROC_FORK 
 #endif
 
@@ -156,7 +156,7 @@ or GPL2.txt for full copies of the license.
 // CAPTURE_SCHED_PROC_FORK 
 ///////////////////////////////
 
-#if defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_s390) || defined(__TARGET_ARCH_riscv)
+#if defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_s390) || defined(__TARGET_ARCH_riscv) || defined(__TARGET_ARCH_loongarch64)
 	#define CAPTURE_SCHED_PROC_FORK 
 #endif
 
@@ -178,7 +178,7 @@ or GPL2.txt for full copies of the license.
 // CAPTURE_64BIT_ARGS_SINGLE_REGISTER 
 ///////////////////////////////
 
-#if defined(__x86_64__) || defined(__aarch64__)
+#if defined(__x86_64__) || defined(__aarch64__) || defined(__loongarch64)
 	#define CAPTURE_64BIT_ARGS_SINGLE_REGISTER
 #endif 
 
@@ -206,7 +206,7 @@ or GPL2.txt for full copies of the license.
 // CAPTURE_SCHED_PROC_FORK 
 ///////////////////////////////
 
-#if defined(__aarch64__) || defined(__s390x__) || defined(__riscv)
+#if defined(__aarch64__) || defined(__s390x__) || defined(__riscv) || defined(__loongarch64)
 	#define CAPTURE_SCHED_PROC_FORK 
 #endif
 

diff --git a/driver/ppm.h b/driver/ppm.h
@@ -80,6 +80,8 @@ long ppm_strncpy_from_user(char *to, const char __user *from, unsigned long n);
   #define SYSCALL_TABLE_ID0 0
 #elif defined CONFIG_RISCV
   #define SYSCALL_TABLE_ID0 0
+#elif defined CONFIG_LOONGARCH
+  #define SYSCALL_TABLE_ID0 0
 #endif
 
 extern const struct syscall_evt_pair g_syscall_table[];