File: as-needed-weak.s

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (23 lines) | stat: -rw-r--r-- 746 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
# REQUIRES: x86

# RUN: echo '.globl foo; .type foo, @function; foo:' | \
# RUN:   llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %t1.o
# RUN: ld.lld -shared -o %t1.so -soname libfoo %t1.o

# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2.o
# RUN: ld.lld -o %t.exe %t2.o --as-needed %t1.so
# RUN: llvm-readelf -dynamic-table -dyn-symbols %t.exe | FileCheck %s

# CHECK-NOT: libfoo

# CHECK:      Symbol table '.dynsym' contains 2 entries:
# CHECK-NEXT: Num:    Value          Size Type    Bind   Vis     Ndx Name
# CHECK-NEXT:   0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT UND
# CHECK-NEXT:   1: 0000000000000000     0 FUNC    WEAK   DEFAULT UND foo

.globl _start
.weak foo

_start:
  mov $foo, %eax
  callq foo