File: weak-shared-gc.s

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (21 lines) | stat: -rw-r--r-- 735 bytes parent folder | download | duplicates (21) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
# RUN: echo -e '.globl __cxa_finalize\n__cxa_finalize:' | \
# RUN:   llvm-mc -filetype=obj -triple=x86_64-pc-linux - -o %t2.o
# RUN: ld.lld %t2.o -o %t2.so -shared
# RUN: ld.lld %t1.o --as-needed --gc-sections %t2.so -o %t
# RUN: llvm-readelf -d --dyn-syms %t | FileCheck %s

# The crt files on linux have a weak reference to __cxa_finalize. It
# is important that a weak undefined reference is produced. Like
# other weak undefined references, the shared library is not marked as
# needed.

# CHECK-NOT: NEEDED
# CHECK: WEAK   DEFAULT UND __cxa_finalize
# CHECK-NOT: NEEDED

        .global _start
_start:
	.weak	__cxa_finalize
	call	__cxa_finalize@PLT