lld/test/ELF/unresolved-symbols.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/unresolved-symbols.s -o %t2.o
   4 # RUN: ld.lld -shared %t2.o -o %t.so
   5
   6 ## Check that %t2.o contains undefined symbol undef.
   7 # RUN: not ld.lld %t1.o %t2.o -o /dev/null 2>&1 | \
   8 # RUN:   FileCheck -check-prefix=UNDCHECK %s
   9 # UNDCHECK: error: undefined symbol: undef
  10 # UNDCHECK: >>> referenced by {{.*}}2.o:(.text+0x1)
  11
  12 ## Error out if unknown option value was set.
  13 # RUN: not ld.lld %t1.o %t2.o -o /dev/null --unresolved-symbols=xxx 2>&1 | \
  14 # RUN:   FileCheck -check-prefix=ERR1 %s
  15 # ERR1: unknown --unresolved-symbols value: xxx
  16 ## Check alias.
  17 # RUN: not ld.lld %t1.o %t2.o -o /dev/null --unresolved-symbols xxx 2>&1 | \
  18 # RUN:   FileCheck -check-prefix=ERR1 %s
  19
  20 ## Ignore all should not produce error for symbols from object except
  21 ## case when --no-undefined specified.
  22 # RUN: ld.lld %t2.o -o %t1_1 --unresolved-symbols=ignore-all
  23 # RUN: llvm-readobj %t1_1 > /dev/null 2>&1
  24 # RUN: not ld.lld %t2.o -o /dev/null --unresolved-symbols=ignore-all --no-undefined 2>&1 | \
  25 # RUN:   FileCheck -check-prefix=ERRUND %s
  26 # ERRUND: error: undefined symbol: undef
  27 # ERRUND: >>> referenced by {{.*}}:(.text+0x1)
  28
  29 ## Also ignore all should not produce error for symbols from DSOs.
  30 # RUN: ld.lld %t1.o %t.so -o %t1_3 --allow-shlib-undefined --unresolved-symbols=ignore-all
  31 # RUN: llvm-readobj %t1_3 > /dev/null 2>&1
  32
  33 ## Ignoring undefines in objects should not produce error for symbol from object.
  34 # RUN: ld.lld %t1.o %t2.o -o %t2 --unresolved-symbols=ignore-in-object-files
  35 # RUN: llvm-readobj %t2 > /dev/null 2>&1
  36 ## --unresolved-symbols overrides a previous --allow-shlib-undefined.
  37 # RUN: not ld.lld %t1.o %t.so -o /dev/null --allow-shlib-undefined --unresolved-symbols=ignore-in-object-files 2>&1 | FileCheck %s --check-prefix=SHLIB
  38
  39 # SHLIB: error: undefined reference: undef
  40
  41 ## Ignoring undefines in shared should produce error for symbol from object.
  42 # RUN: not ld.lld %t2.o -o /dev/null --unresolved-symbols=ignore-in-shared-libs 2>&1 | \
  43 # RUN:   FileCheck -check-prefix=ERRUND %s
  44 ## And should not produce errors for symbols from DSO.
  45 # RUN: ld.lld %t1.o %t.so -o %t3_1 --allow-shlib-undefined --unresolved-symbols=ignore-in-shared-libs
  46 # RUN: llvm-readobj %t3_1 > /dev/null 2>&1
  47
  48 ## Ignoring undefines in shared libs should not produce error for symbol from object
  49 ## if we are linking DSO.
  50 # RUN: ld.lld -shared %t1.o -o %t4 --unresolved-symbols=ignore-in-shared-libs
  51 # RUN: llvm-readobj %t4 > /dev/null 2>&1
  52
  53 ## Do not report undefines if linking relocatable.
  54 # RUN: ld.lld -r %t1.o %t2.o -o %t5 --unresolved-symbols=report-all
  55 # RUN: llvm-readobj %t5 > /dev/null 2>&1
  56
  57 ## report-all is the default when linking an executable. Check that we report
  58 ## unresolved undefines from both DSO and regular object files.
  59 # RUN: not ld.lld -shared %t1.o %t.so -o /dev/null --unresolved-symbols=report-all 2>&1 | FileCheck %s --check-prefix=SHLIB
  60 # RUN: ld.lld -shared %t1.o %t.so -o %t6_1
  61 # RUN: llvm-readobj %t6_1 > /dev/null 2>&1
  62 # RUN: not ld.lld %t2.o -o /dev/null --unresolved-symbols=report-all 2>&1 | \
  63 # RUN:   FileCheck -check-prefix=ERRUND %s
  64 # RUN: not ld.lld %t2.o -o /dev/null 2>&1 | FileCheck -check-prefix=ERRUND %s
  65
  66 .globl _start
  67 _start: