1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
3# RUN: ld.lld -shared %t2.o -o %t2.so
4# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
5# RUN: ld.lld --gc-sections --export-dynamic-symbol foo -o %t %t.o --as-needed %t2.so
6# RUN: llvm-readobj --dynamic-table --dyn-symbols %t | FileCheck %s
7
8# This test the property that we have a needed line for every undefined.
9# It would also be OK to drop bar2 and the need for the .so
10
11# CHECK:      DynamicSymbols [
12# CHECK-NEXT:   Symbol {
13# CHECK-NEXT:     Name:
14# CHECK-NEXT:     Value:
15# CHECK-NEXT:     Size:
16# CHECK-NEXT:     Binding: Local
17# CHECK-NEXT:     Type:
18# CHECK-NEXT:     Other:
19# CHECK-NEXT:     Section: Undefined (0x0)
20# CHECK-NEXT:   }
21# CHECK-NEXT:   Symbol {
22# CHECK-NEXT:     Name: bar
23# CHECK-NEXT:     Value:
24# CHECK-NEXT:     Size:
25# CHECK-NEXT:     Binding: Global
26# CHECK-NEXT:     Type:
27# CHECK-NEXT:     Other:
28# CHECK-NEXT:     Section: .text
29# CHECK-NEXT:   }
30# CHECK-NEXT:   Symbol {
31# CHECK-NEXT:     Name: bar2
32# CHECK-NEXT:     Value:
33# CHECK-NEXT:     Size:
34# CHECK-NEXT:     Binding: Global
35# CHECK-NEXT:     Type:
36# CHECK-NEXT:     Other:
37# CHECK-NEXT:     Section: Undefined
38# CHECK-NEXT:   }
39# CHECK-NEXT:   Symbol {
40# CHECK-NEXT:     Name: foo
41# CHECK-NEXT:     Value:
42# CHECK-NEXT:     Size:
43# CHECK-NEXT:     Binding: Global
44# CHECK-NEXT:     Type:
45# CHECK-NEXT:     Other:
46# CHECK-NEXT:     Section: .text
47# CHECK-NEXT:   }
48# CHECK-NEXT: ]
49
50# CHECK: NEEDED SharedLibrary ({{.*}}.so)
51
52.section .text.foo, "ax"
53.globl foo
54foo:
55call bar
56
57.section .text.bar, "ax"
58.globl bar
59bar:
60ret
61
62.section .text._start, "ax"
63.globl _start
64_start:
65ret
66
67.section .text.unused, "ax"
68call bar2
69