bolt/test/AArch64/tls.c

   1 // Test checks that BOLT can process binaries with TLS relocations
   2
   3 __thread struct str {
   4   int a;
   5   int b;
   6 } tbssstruct = {}, tdatastruct = {4, 2};
   7
   8 extern __thread struct str extstruct;
   9
  10 extern void processAddr(volatile void *);
  11
  12 int main() {
  13   // R_AARCH64_TLSDESC_ADR_PAGE21 and R_AARCH64_TLSDESC_LD64_LO12_NC are
  14   // produced for pie binaries in all cases below.
  15
  16   // The R_TLSLE_ADD_TPREL_HI12 and R_TLSLE_ADD_TPREL_LO12_NC for
  17   // relocations in .tbss and .tdata
  18   processAddr(&tbssstruct.b);
  19   processAddr(&tdatastruct.b);
  20
  21   // The R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 and
  22   // R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC relocations
  23   processAddr(&extstruct.b);
  24 }
  25
  26 // REQUIRES: system-linux
  27 // RUN: %clang %cflags -no-pie %s -o %t.exe -Wl,-q \
  28 // RUN:   -Wl,--unresolved-symbols=ignore-all \
  29 // RUN:   -fuse-ld=lld \
  30 // RUN:   -nostdlib
  31 // RUN: llvm-bolt %t.exe -o %t.bolt
  32 // RUN: %clang %cflags -fPIC -pie %s -o %t_pie.exe -Wl,-q \
  33 // RUN:   -Wl,--unresolved-symbols=ignore-all \
  34 // RUN:   -target aarch64-linux -fuse-ld=lld \
  35 // RUN:   -nostdlib
  36 // RUN: llvm-bolt %t_pie.exe -o %t.bolt