demos/CMakeLists.txt

# Use C++11 without extensions
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_EXTENSIONS off)

# Enable at least some optimization in all builds. The Ret2Spec demo, in
# particular, will segfault if built without optimizations.
# TODO(https://git.io/JecmX): Fix the crash in Ret2Spec
add_compile_options(-O2)

# Disable run-time code checking on MSVC. It's enabled by default in CMake's
# debug build settings, but it's incompatible with optimizations.
string(REPLACE "/RTC1" "" CMAKE_CXX_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_DEBUG})

# When targeting x86, we need to opt in to SSE2 instructions like
# clflush, mfence, lfence.
if((${CMAKE_SYSTEM_PROCESSOR} MATCHES "^(i.86)$") AND
   (${CMAKE_C_COMPILER_ID} MATCHES "^(Clang)|(GNU)$"))
  add_compile_options(-msse2)
endif()

# Support library
add_library(safeside cache_sidechannel.cc instr.cc utils.cc)

# Spectre V1 PHT -- bounds check bypass
add_executable(spectre_v1 spectre_v1.cc)
target_link_libraries(spectre_v1 safeside)

# Spectre V1 BTB SA -- mistraining BTB in the same address space
add_executable(spectre_v1_btb_sa spectre_v1_btb_sa.cc)
target_link_libraries(spectre_v1_btb_sa safeside)

# Spectre V4 -- speculative store bypass
add_executable(spectre_v4 spectre_v4.cc)
target_link_libraries(spectre_v4 safeside)

# Cyclic Ret2Spec -- rewriting the RSB
add_executable(ret2spec_cyclic ret2spec_cyclic.cc)
target_link_libraries(ret2spec_cyclic safeside)

if(${CMAKE_SYSTEM_NAME} MATCHES "^(Linux)$")
  # Spectre V1 BTB CA - mistraining BTB from another address space
  add_executable(spectre_v1_btb_ca spectre_v1_btb_ca.cc)
  target_link_libraries(spectre_v1_btb_ca safeside)
endif()

if((${CMAKE_SYSTEM_NAME} MATCHES "^(Linux)|(Darwin)$") AND
   (${CMAKE_SYSTEM_PROCESSOR} MATCHES "^(i.86)|(x86_64)|(aarch64)$"))
  # Ret2Spec -- speculative execution using return stack buffers
  add_executable(ret2spec ret2spec.cc)
  target_compile_options(ret2spec PRIVATE -fomit-frame-pointer)
  target_link_libraries(ret2spec safeside)
endif()

if((${CMAKE_SYSTEM_NAME} MATCHES "^(Linux)$") AND
   (${CMAKE_SYSTEM_PROCESSOR} MATCHES "^(i.86)|(x86_64)|(ppc64le)$"))
  # Spectre V3 / Meltdown
  add_executable(meltdown meltdown.cc)
  target_link_libraries(meltdown safeside)

  # L1 terminal fault -- Foreshadow OS -- Meltdown P
  add_executable(l1tf l1tf.cc)
  target_link_libraries(l1tf safeside)
endif()

if((${CMAKE_SYSTEM_NAME} MATCHES "^(Linux)$") AND
   (${CMAKE_SYSTEM_PROCESSOR} MATCHES "^(aarch64)$"))
  # Speculation over ERET, HVC and SMC instructions
  add_executable(eret_hvc_smc_wrapper eret_hvc_smc_wrapper.cc)
  target_link_libraries(eret_hvc_smc_wrapper safeside)

  # Speculation over syscall
  add_executable(speculation_over_syscall speculation_over_syscall.cc)
  target_link_libraries(speculation_over_syscall safeside)

  # Meltdown UD -- speculation over an undefined instruction
  add_executable(meltdown_ud meltdown_ud.cc)
  target_link_libraries(meltdown_ud safeside)
endif()

if((${CMAKE_SYSTEM_NAME} MATCHES "^(Linux)|(Darwin)$") AND
   (${CMAKE_SYSTEM_PROCESSOR} MATCHES "^(i.86)$"))
   # Meltdown BR - speculation over the ia32 bounds check instruction
  add_executable(meltdown_br meltdown_br.cc)
  target_link_libraries(meltdown_br safeside)
endif()

if((${CMAKE_SYSTEM_NAME} MATCHES "^(Linux)$") AND
   (${CMAKE_SYSTEM_PROCESSOR} MATCHES "^(i.86)$"))
  # Meltdown SS -- speculative reading from non present segments and outside of
  # segment limits
  add_executable(meltdown_ss meltdown_ss.cc)
  target_link_libraries(meltdown_ss safeside)
endif()

if((${CMAKE_SYSTEM_NAME} MATCHES "^(Linux)|(Darwin)$") AND
   (${CMAKE_SYSTEM_PROCESSOR} MATCHES "^(i.86)$"))
  # Meltdown OF -- speculative fetching from an overflowing address after an
  # INTO check
  add_executable(meltdown_of meltdown_of.cc)
  target_link_libraries(meltdown_of safeside)
endif()

if((${CMAKE_SYSTEM_NAME} MATCHES "^(Linux)$") AND
   (${CMAKE_SYSTEM_PROCESSOR} MATCHES "^(i.86)|(x86_64)$"))
  # Speculation over hardware breakpoint trap
  add_executable(speculation_over_hw_breakpoint speculation_over_hw_breakpoint.cc)
  target_link_libraries(speculation_over_hw_breakpoint safeside)

  # Meltdown AC -- speculative fetching of unaligned data
  add_executable(meltdown_ac meltdown_ac.cc)
  target_link_libraries(meltdown_ac safeside)

  # Meltdown DE -- speculative computation with division by zero remainder
  add_executable(meltdown_de meltdown_de.cc)
  target_link_libraries(meltdown_de safeside)
endif()