llvm/test/tools/dsymutil/X86/Inputs/call-site-entry.c

   1 /*
   2  * This file is used to test dsymutil support for call site entries
   3  * (DW_TAG_call_site / DW_AT_call_return_pc).
   4  *
   5  * Instructions for regenerating binaries (on Darwin/x86_64):
   6  *
   7  * 1. Copy the source to a top-level directory to work around having absolute
   8  *    paths in the symtab's OSO entries.
   9  *
  10  *    mkdir -p /Inputs/ && cp call-site-entry.c /Inputs && cd /Inputs
  11  *
  12  * 2. Compile with call site info enabled.
  13  *
  14  *    clang -g -O1 -Xclang -disable-llvm-passes call-site-entry.c -c -o call-site-entry.macho.x86_64.o
  15  *    clang call-site-entry.macho.x86_64.o -o call-site-entry.macho.x86_64
  16  *
  17  * 3. Copy the binaries back into the repo's Inputs directory. You'll need
  18  *    -oso-prepend-path=%p to link.
  19  */
  20
  21 __attribute__((optnone)) int f() {}
  22
  23 int main() {
  24   f();
  25 }