test: Add first full integration tests

.builds/llvm13-x86_64-debian.yml

@@ -5,6 +5,8 @@ packages:
   - llvm-13-dev
   - libssl-dev
   - pkg-config
+  - clang
+  - lld
 sources:
   - https://git.sr.ht/~aengelke/instrew
 tasks:

.builds/llvm15-x86_64-debian.yml

@@ -5,6 +5,8 @@ packages:
   - llvm-15-dev
   - libssl-dev
   - pkg-config
+  - clang
+  - lld
 sources:
   - https://git.sr.ht/~aengelke/instrew
 tasks:

meson.build

@@ -63,3 +63,4 @@ subdir('tool-api')
 subdir('server')
 
 subdir('tools-simple')
+subdir('test')

server/meson.build

@@ -19,8 +19,8 @@ client_bytes = custom_target('hex-client', output: 'client.inc', input: client,
                              capture: true,
                              command: [python3, '-c', pytobytes, '@INPUT@'])
 
-executable('instrew', sources, client_bytes,
-           include_directories: include_directories('.', '../shared'),
-           dependencies: [librellume, fadec, frvdec, farmdec, libllvm, libcrypto, instrew_api],
-           link_args: ['-ldl'],
-           install: true)
+instrew = executable('instrew', sources, client_bytes,
+                     include_directories: include_directories('.', '../shared'),
+                     dependencies: [librellume, fadec, frvdec, farmdec, libllvm, libcrypto, instrew_api],
+                     link_args: ['-ldl'],
+                     install: true)

test/aarch64/exit.S

@@ -0,0 +1,7 @@
+    .text
+    .global _start
+_start:
+    mov x0, #0
+    mov x8, #94
+    svc #0
+    udf #0

test/aarch64/meson.build

@@ -0,0 +1,5 @@
+
+triple = 'aarch64-linux-gnu'
+cases = [
+  {'name': 'exit', 'src': files('exit.S')},
+]

test/meson.build

@@ -0,0 +1,28 @@
+
+clang = find_program('clang', native: true, required: false, disabler: true)
+if not clang.found()
+  warning('unable to find clang; disabling tests')
+endif
+
+foreach arch : ['aarch64', 'x86_64']
+  subdir(arch)
+
+  testcc = [clang, '--target=@0@'.format(triple), '-nostdlib', '-static', '-fuse-ld=lld']
+  testrun = run_command(testcc + ['-o', '/dev/null', files('empty.s')], check: false)
+  if testrun.returncode() != 0
+    warning('defunctional @0@ Clang/LLD; disabling tests'.format(arch))
+    continue
+  endif
+
+  foreach case : cases
+    name = '@0@-@1@'.format(arch, case.get('name'))
+    exec = custom_target(name,
+                         input: case.get('src'),
+                         output: name,
+                         depfile: name + '.d',
+                         command: testcc + ['-MD', '-MF', '@DEPFILE@', '-o', '@OUTPUT@', '@INPUT@'] + case.get('compile_args', []))
+    test(name, instrew, suite: [arch],
+         args: case.get('instrew_args', []) + [exec] + case.get('args', []),
+         should_fail: case.get('should_fail', false))
+  endforeach
+endforeach

test/x86_64/call-pop.S

@@ -0,0 +1,14 @@
+    .intel_syntax noprefix
+    .text
+    .global _start
+_start:
+    mov eax, 0x1000000
+1:  call 2f
+2:  pop rcx
+    sub eax, 1
+    jnz 1b
+
+    xor edi, edi
+    mov eax, 231
+    syscall
+    ud2

test/x86_64/exit.S

@@ -0,0 +1,8 @@
+    .intel_syntax noprefix
+    .text
+    .global _start
+_start:
+    xor edi, edi
+    mov eax, 231
+    syscall
+    ud2

test/x86_64/meson.build

@@ -0,0 +1,6 @@
+triple = 'x86_64-linux-gnu'
+cases = [
+  {'name': 'exit', 'src': files('exit.S')},
+  {'name': 'call-pop', 'src': files('call-pop.S')},
+  {'name': 'nowrite', 'src': files('nowrite.S'), 'should_fail': true},
+]

test/x86_64/nowrite.S

@@ -0,0 +1,13 @@
+    .intel_syntax noprefix
+    .text
+    .global _start
+_start:
+    mov byte ptr [rip + data], 0
+    // should not be reached
+    xor edi, edi
+    mov eax, 231
+    syscall
+
+    .rodata
+data:
+    .byte 0xff