1# REQUIRES: x86 2# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o 3# RUN: ld.lld -shared %t.o -o %t.so 4 5# RUN: echo '.data; .weak foo; .quad foo' | llvm-mc -filetype=obj -triple=x86_64 - -o %t1.o 6# RUN: echo '.data; .quad foo' | llvm-mc -filetype=obj -triple=x86_64 - -o %t2.o 7# RUN: ld.lld -shared %t2.o -o %t2.so 8 9## If the first undefined reference is weak, the binding changes to 10## STB_WEAK. 11# RUN: ld.lld %t1.o %t.so -o %t 12# RUN: llvm-readelf --dyn-syms %t | FileCheck --check-prefix=WEAK %s 13# RUN: ld.lld %t.so %t1.o -o %t 14# RUN: llvm-readelf --dyn-syms %t | FileCheck --check-prefix=WEAK %s 15 16## The binding remains STB_WEAK if there is no STB_GLOBAL undefined reference. 17# RUN: ld.lld %t1.o %t.so %t1.o -o %t 18# RUN: llvm-readelf --dyn-syms %t | FileCheck --check-prefix=WEAK %s 19# RUN: ld.lld %t.so %t1.o %t1.o -o %t 20# RUN: llvm-readelf --dyn-syms %t | FileCheck --check-prefix=WEAK %s 21 22## The binding changes back to STB_GLOBAL if there is a STB_GLOBAL undefined reference. 23# RUN: ld.lld %t1.o %t.so %t2.o -o %t 24# RUN: llvm-readelf --dyn-syms %t | FileCheck --check-prefix=GLOBAL %s 25# RUN: ld.lld %t2.o %t.so %t1.o -o %t 26# RUN: llvm-readelf --dyn-syms %t | FileCheck --check-prefix=GLOBAL %s 27 28## Check the binding (weak) is not affected by the STB_GLOBAL undefined 29## reference in %t2.so 30# RUN: ld.lld %t1.o %t2.so -o %t 31# RUN: llvm-readelf --dyn-syms %t | FileCheck --check-prefix=WEAK %s 32 33# RUN: ld.lld %t2.so %t1.o -o %t 34# RUN: llvm-readelf --dyn-syms %t | FileCheck --check-prefix=WEAK %s 35 36# WEAK: NOTYPE WEAK DEFAULT UND foo 37# GLOBAL: NOTYPE GLOBAL DEFAULT UND foo 38 39.globl foo 40foo: 41