Implement mmap/msync syscall support with unit and integration coverage

3 files changed, 34 insertions, 0 deletions

diff --git a/internal/generate/classify.go b/internal/generate/classify.go
index c55e46f..b79d49c 100644
--- a/internal/generate/classify.go
+++ b/internal/generate/classify.go
@@ -113,6 +113,8 @@ func classifyNameOnly(name string) (ClassificationResult, bool) {
 		return ClassificationResult{Kind: KindNull}, true
 	case "sys_enter_sync":
 		return ClassificationResult{Kind: KindNull}, true
+	case "sys_enter_msync":
+		return ClassificationResult{Kind: KindNull}, true
 	}
 	if strings.HasPrefix(name, "sys_enter_io_") {
 		return ClassificationResult{Kind: KindNull}, true
diff --git a/internal/generate/classify_test.go b/internal/generate/classify_test.go
index 07c6027..285c8e2 100644
--- a/internal/generate/classify_test.go
+++ b/internal/generate/classify_test.go
@@ -272,6 +272,7 @@ func TestShouldNotIgnore(t *testing.T) {
 	noIgnore := []string{
 		"sys_enter_read", "sys_enter_write", "sys_enter_openat",
 		"sys_enter_close", "sys_enter_rename", "sys_enter_unlink",
+		"sys_enter_msync",
 		"sys_exit_read", "sys_exit_openat",
 	}
 	for _, name := range noIgnore {
@@ -297,6 +298,7 @@ func TestClassifySyscallPairAccepted(t *testing.T) {
 		{"dup3", FormatDup3, FormatExitDup3, KindDup3},
 		{"fcntl", FormatFcntl, FormatExitFcntl, KindFcntl},
 		{"sync", FormatSync, FormatExitSync, KindNull},
+		{"msync", FormatMsync, FormatExitMsync, KindNull},
 		{"syslog", FormatSyslog, FormatExitSyslog, KindNull},
 		{"open_by_handle_at", FormatOpenByHandleAt, FormatExitOpenByHandleAt, KindOpenByHandleAt},
 		{"name_to_handle_at", FormatNameToHandleAt, FormatExitNameToHandleAt, KindPathname},
diff --git a/internal/generate/testdata.go b/internal/generate/testdata.go
index e36a6a1..c03c0d7 100644
--- a/internal/generate/testdata.go
+++ b/internal/generate/testdata.go
@@ -152,6 +152,36 @@ format:
 print fmt: "0x%lx", REC->ret
 `
 
+const FormatMsync = `name: sys_enter_msync
+ID: 1029
+format:
+	field:unsigned short common_type;	offset:0;	size:2;	signed:0;
+	field:unsigned char common_flags;	offset:2;	size:1;	signed:0;
+	field:unsigned char common_preempt_count;	offset:3;	size:1;	signed:0;
+	field:int common_pid;	offset:4;	size:4;	signed:1;
+
+	field:int __syscall_nr;	offset:8;	size:4;	signed:1;
+	field:unsigned long start;	offset:16;	size:8;	signed:0;
+	field:size_t len;	offset:24;	size:8;	signed:0;
+	field:int flags;	offset:32;	size:8;	signed:0;
+
+print fmt: "start: 0x%08lx, len: 0x%08lx, flags: 0x%08lx", ((unsigned long)(REC->start)), ((unsigned long)(REC->len)), ((unsigned long)(REC->flags))
+`
+
+const FormatExitMsync = `name: sys_exit_msync
+ID: 1028
+format:
+	field:unsigned short common_type;	offset:0;	size:2;	signed:0;
+	field:unsigned char common_flags;	offset:2;	size:1;	signed:0;
+	field:unsigned char common_preempt_count;	offset:3;	size:1;	signed:0;
+	field:int common_pid;	offset:4;	size:4;	signed:1;
+
+	field:int __syscall_nr;	offset:8;	size:4;	signed:1;
+	field:long ret;	offset:16;	size:8;	signed:1;
+
+print fmt: "0x%lx", REC->ret
+`
+
 const FormatRename = `name: sys_enter_rename
 ID: 870
 format: