xref: /llvm-project/lld/test/wasm/export.s (revision dc1a08caeff415712ff8299b21a4c26fced777db)
1# Test in default mode
2# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown -o %t.o %s
3# RUN: not wasm-ld --export=missing -o %t.wasm %t.o 2>&1 | FileCheck -check-prefix=CHECK-ERROR %s
4# RUN: wasm-ld --export=hidden_function -o %t.wasm %t.o
5# RUN: obj2yaml %t.wasm | FileCheck %s
6
7# Now test in Emscripten mode
8# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-emscripten -o %t.o %s
9# RUN: not wasm-ld --export=missing -o %t.wasm %t.o 2>&1 | FileCheck -check-prefix=CHECK-ERROR %s
10# RUN: wasm-ld --export=hidden_function -o %t.wasm %t.o
11# RUN: obj2yaml %t.wasm | FileCheck %s --check-prefixes=CHECK,EMSCRIPTEN
12
13# Not exported by default, but forced via commandline
14  .hidden hidden_function
15  .globl hidden_function
16hidden_function:
17  .functype hidden_function () -> (i32)
18  i32.const 0
19  end_function
20
21# Not exported by default
22  .globl default_function
23default_function:
24  .functype default_function () -> (i32)
25  i32.const 0
26  end_function
27
28# Exported in emscripten mode which treats .no_dead_strip as a signal to export
29  .no_dead_strip used_function
30  .globl used_function
31used_function:
32  .functype used_function () -> (i32)
33  i32.const 0
34  end_function
35
36# Exported by default
37.globl _start
38_start:
39  .functype _start () -> ()
40  end_function
41
42# CHECK-ERROR: error: symbol exported via --export not found: missing
43
44# CHECK-NOT: - Name: default_function
45
46# CHECK:        - Type:            EXPORT
47# CHECK-NEXT:     Exports:
48# CHECK-NEXT:       - Name:            memory
49# CHECK-NEXT:         Kind:            MEMORY
50# CHECK-NEXT:         Index:           0
51# CHECK-NEXT:       - Name:            hidden_function
52# CHECK-NEXT:         Kind:            FUNCTION
53# CHECK-NEXT:         Index:           0
54# EMSCRIPTEN-NEXT:  - Name:            used_function
55# EMSCRIPTEN-NEXT:    Kind:            FUNCTION
56# EMSCRIPTEN-NEXT:    Index:           1
57# CHECK-NEXT:       - Name:            _start
58# CHECK-NEXT:         Kind:            FUNCTION
59# CHECK-NEXT:         Index:           2
60# CHECK-NEXT:   - Type:            CODE
61