compiler-rt/test/profile/Linux/binary-id-offset.c

   1 // REQUIRES: linux, lld-available
   2 //
   3 // Make sure the build-id can be found in both EXEC and DYN (PIE) files,
   4 // even when the note has been loaded at an offset address in memory.
   5 // (The DYN case would also apply to libraries, not explicitly tested here.)
   6
   7 // DEFINE: %{cflags} =
   8 // DEFINE: %{check} = (                                                           \
   9 // DEFINE:     %clang_profgen -fuse-ld=lld -Wl,--build-id -o %t %s %{cflags}   && \
  10 // DEFINE:     env LLVM_PROFILE_FILE=%t.profraw %run %t                        && \
  11 // DEFINE:     llvm-readelf --notes %t                                         && \
  12 // DEFINE:     llvm-profdata show --binary-ids %t.profraw                         \
  13 // DEFINE:   ) | FileCheck %s
  14
  15 // REDEFINE: %{cflags} = -no-pie
  16 // RUN: %{check}
  17
  18 // REDEFINE: %{cflags} = -pie -fPIE
  19 // RUN: %{check}
  20
  21 // Moving the note after .bss also gives it extra LOAD segment padding,
  22 // making its memory offset different than its file offset.
  23 // RUN: echo "SECTIONS { .note.gnu.build-id : {} } INSERT AFTER .bss;" >%t.script
  24
  25 // REDEFINE: %{cflags} = -no-pie -Wl,--script=%t.script
  26 // RUN: %{check}
  27
  28 // REDEFINE: %{cflags} = -pie -fPIE -Wl,--script=%t.script
  29 // RUN: %{check}
  30
  31 // CHECK-LABEL{LITERAL}: .note.gnu.build-id
  32 // CHECK: Build ID: [[ID:[0-9a-f]+]]
  33
  34 // CHECK-LABEL{LITERAL}: Instrumentation level: Front-end
  35 // CHECK-LABEL{LITERAL}: Binary IDs:
  36 // CHECK-NEXT: [[ID]]
  37
  38 int main() { return 0; }