lld/test/ELF/deplibs.s

   1 # REQUIRES: x86
   2
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
   4 # RUN: echo ".global foo; foo:" | \
   5 # RUN:   llvm-mc -filetype=obj -triple=x86_64 - -o %tfoo.o
   6 # RUN: rm -rf %t.dir %t.cwd
   7 # RUN: mkdir -p %t.dir
   8
   9 ## Error if dependent libraries cannot be found.
  10 # RUN: not ld.lld %t.o -o /dev/null 2>&1 | FileCheck %s -DOBJ=%t.o --check-prefix MISSING
  11 # MISSING:      error: [[OBJ]]: unable to find library from dependent library specifier: foo.a
  12 # MISSING-NEXT: error: [[OBJ]]: unable to find library from dependent library specifier: bar
  13
  14 ## Can ignore dependent libraries.
  15 # RUN: not ld.lld %t.o -o /dev/null --no-dependent-libraries 2>&1 | FileCheck %s --check-prefix IGNORE
  16 # IGNORE: error: undefined symbol: foo
  17
  18 ## -r links preserve dependent libraries.
  19 # RUN: ld.lld %t.o %t.o -r -o %t-r.o
  20 # RUN: not ld.lld %t-r.o -o /dev/null 2>&1 | sort | FileCheck %s -DOBJ=%t-r.o --check-prefixes MINUSR
  21 # MINUSR:      error: [[OBJ]]: unable to find library from dependent library specifier: bar
  22 # MINUSR-NEXT: error: [[OBJ]]: unable to find library from dependent library specifier: foo.a
  23 # MINUSR-NOT:  unable to find library from dependent library specifier
  24
  25 ## Dependent libraries searched for symbols after libraries on the command line.
  26 # RUN: mkdir -p %t.cwd
  27 # RUN: cd %t.cwd
  28 # RUN: llvm-ar rc %t.dir/foo.a %tfoo.o
  29 # RUN: touch %t.dir/libbar.so
  30 # RUN: cp %t.dir/foo.a %t.cwd/libcmdline.a
  31 # RUN: ld.lld %t.o libcmdline.a -o /dev/null -L %t.dir --trace 2>&1 | \
  32 # RUN:   FileCheck %s -DOBJ=%t.o -DSO=%t.dir --check-prefix CMDLINE \
  33 # RUN:                --implicit-check-not=foo.a --implicit-check-not=libbar.so
  34 # CMDLINE:      [[OBJ]]
  35 # CMDLINE-NEXT: {{^libcmdline\.a}}
  36
  37 ## LLD tries to resolve dependent library specifiers in the following order:
  38 ##   1) The name, prefixed with "lib" and suffixed with ".so" or ".a" in a
  39 ##      library search path. This means that a directive of "foo.a" could lead
  40 ##      to a library named "libfoo.a.a" being linked in.
  41 ##   2) The literal name in a library search path.
  42 ##   3) The literal name in the current working directory.
  43 ## When using library search paths for dependent libraries, LLD follows the same
  44 ## rules as for libraries specified on the command line.
  45 # RUN: cp %t.dir/foo.a %t.cwd/foo.a
  46 # RUN: cp %t.dir/foo.a %t.dir/libfoo.a.a
  47
  48 # RUN: ld.lld %t.o -o /dev/null -L %t.dir --trace 2>&1 | \
  49 # RUN:   FileCheck %s -DOBJ=%t.o -DDIR=%t.dir --check-prefix=LIBA-DIR \
  50 # RUN:                --implicit-check-not=foo.a --implicit-check-not=libbar.so
  51
  52 # LIBA-DIR:      [[OBJ]]
  53 # LIBA-DIR-NEXT: [[DIR]]{{[\\/]}}libfoo.a.a
  54
  55 # RUN: rm %t.dir/libfoo.a.a
  56 # RUN: ld.lld %t.o -o /dev/null -L %t.dir --trace 2>&1 | \
  57 # RUN:   FileCheck %s -DOBJ=%t.o -DDIR=%t.dir --check-prefix=PLAIN-DIR \
  58 # RUN:                --implicit-check-not=foo.a --implicit-check-not=libbar.so
  59
  60 # PLAIN-DIR:      [[OBJ]]
  61 # PLAIN-DIR-NEXT: [[DIR]]{{[\\/]}}foo.a
  62
  63 # RUN: rm %t.dir/foo.a
  64 # RUN: ld.lld %t.o -o /dev/null -L %t.dir --trace 2>&1 | \
  65 # RUN:   FileCheck %s -DOBJ=%t.o -DDIR=%t.dir --check-prefix=CWD \
  66 # RUN:                --implicit-check-not=foo.a --implicit-check-not=libbar.so
  67
  68 # CWD:      [[OBJ]]
  69 # CWD-NEXT: {{^foo\.a}}
  70
  71     call foo
  72 .section ".deplibs","MS",@llvm_dependent_libraries,1
  73     .asciz "foo.a"
  74     ## Show that an unneeded archive must be present but may not be linked in.
  75     .asciz "bar"