pkg/host: split files into syscalls/features

pkg/host does 2 things: detects supported syscalls and supported features.
There is enough code for each for a separate file.

1 files changed, 0 insertions, 151 deletions

diff --git a/pkg/host/host_linux_test.go b/pkg/host/host_linux_test.go
deleted file mode 100644
index 2064a10e3..000000000
--- a/pkg/host/host_linux_test.go
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright 2015 syzkaller project authors. All rights reserved.
-// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
-
-// +build linux
-
-package host
-
-import (
-	"runtime"
-	"syscall"
-	"testing"
-
-	"github.com/google/syzkaller/prog"
-)
-
-func TestSupportedSyscalls(t *testing.T) {
-	t.Parallel()
-	target, err := prog.GetTarget("linux", runtime.GOARCH)
-	if err != nil {
-		t.Fatal(err)
-	}
-	supp, _, err := DetectSupportedSyscalls(target, "none")
-	if err != nil {
-		t.Skipf("skipping: %v", err)
-	}
-	// These are safe to execute with invalid arguments.
-	safe := []string{
-		"memfd_create",
-		"sendfile",
-		"bpf$MAP_CREATE",
-		"open",
-		"openat",
-		"read",
-		"write",
-		"stat",
-	}
-	for _, name := range safe {
-		c := target.SyscallMap[name]
-		if c == nil {
-			t.Fatalf("can't find syscall '%v'", name)
-		}
-		a := ^uintptr(0) - 4097 // hopefully invalid
-		_, _, err := syscall.Syscall6(uintptr(c.NR), a, a, a, a, a, a)
-		if err == 0 {
-			t.Fatalf("%v did not fail", name)
-		}
-		if ok := err != syscall.ENOSYS; ok != supp[c] {
-			t.Fatalf("syscall %v: perse=%v kallsyms=%v", name, ok, supp[c])
-		}
-	}
-}
-
-func TestKallsymsParse(t *testing.T) {
-	tests := []struct {
-		Arch              string
-		Kallsyms          []byte
-		ParsedSyscalls    []string
-		SupportedSyscalls []string
-	}{
-		{
-			"amd64",
-			[]byte(`
-ffffffff817cdcc0 T __sys_bind
-ffffffff817cdda0 T __x64_sys_bind
-ffffffff817cddc0 T __ia32_sys_bind
-ffffffff817cdde0 T __sys_listen
-ffffffff817cde80 T __x64_sys_listen
-ffffffff817cde90 T __ia32_sys_listen
-ffffffff817cdea0 T __sys_accept4
-ffffffff817ce080 T __x64_sys_accept4
-ffffffff817ce0a0 T __ia32_sys_accept4
-			`),
-			[]string{"bind", "listen", "accept4"},
-			[]string{"bind", "listen", "accept4"},
-		},
-		{
-			"arm64",
-			[]byte(`
-ffff000010a3ddf8 T __sys_bind
-ffff000010a3def8 T __arm64_sys_bind
-ffff000010a3df20 T __sys_listen
-ffff000010a3dfd8 T __arm64_sys_listen
-ffff000010a3e000 T __sys_accept4
-ffff000010a3e1f0 T __arm64_sys_accept4
-			`),
-			[]string{"bind", "listen", "accept4"},
-			[]string{"bind", "listen", "accept4"},
-		},
-		{
-			"ppc64le",
-			[]byte(`
-c0000000011ec810 T __sys_bind
-c0000000011eca10 T sys_bind
-c0000000011eca10 T __se_sys_bind
-c0000000011eca70 T __sys_listen
-c0000000011ecc10 T sys_listen
-c0000000011ecc10 T __se_sys_listen
-c0000000011ecc70 T __sys_accept4
-c0000000011ed050 T sys_accept4
-c0000000011ed050 T __se_sys_accept4
-			`),
-			[]string{"bind", "listen", "accept4"},
-			[]string{"bind", "listen", "accept4"},
-		},
-		{
-			"arm",
-			[]byte(`
-c037c67c T __se_sys_setfsuid
-c037c694 T __sys_setfsgid
-c037c790 T sys_setfsgid
-c037c790 T __se_sys_setfsgid
-c037c7a8 T sys_getpid
-c037c7d0 T sys_gettid
-c037c7f8 T sys_getppid
-			`),
-			[]string{"setfsgid", "getpid", "gettid", "getppid"},
-			[]string{"setfsgid", "getpid", "gettid", "getppid"},
-		},
-		// Test kallsymsRenameMap
-		{
-			"ppc64le",
-			[]byte(`
-c00000000037eb00 T sys_newstat
-			`),
-			[]string{"newstat"},
-			[]string{"stat"},
-		},
-	}
-
-	for _, test := range tests {
-		syscallSet := parseKallsyms(test.Kallsyms, test.Arch)
-		if len(syscallSet) != len(test.ParsedSyscalls) {
-			t.Fatalf("wrong number of parse syscalls, expected: %v, got: %v",
-				len(test.ParsedSyscalls), len(syscallSet))
-		}
-		for _, syscall := range test.ParsedSyscalls {
-			if _, ok := syscallSet[syscall]; !ok {
-				t.Fatalf("syscall %v not found in parsed syscall list", syscall)
-			}
-		}
-		for _, syscall := range test.SupportedSyscalls {
-			if newname := kallsymsRenameMap[syscall]; newname != "" {
-				syscall = newname
-			}
-
-			if _, ok := syscallSet[syscall]; !ok {
-				t.Fatalf("syscall %v not found in supported syscall list", syscall)
-			}
-		}
-	}
-}