load("@fbcode_macros//build_defs:config.bzl", "config")
load("@fbcode_macros//build_defs:cpp_library.bzl", "cpp_library")
load("@fbcode_macros//build_defs:cpp_unittest.bzl", "cpp_unittest")
load("@fbcode_macros//build_defs:custom_unittest.bzl", "custom_unittest")
load("@fbsource//tools/build_defs/buck2:is_buck2.bzl", "is_buck2")
SPLIT_DWARF_FLAGS = {
"none": ["-gno-split-dwarf"],
"single_inlining": ["-gsplit-dwarf=single", "-fsplit-dwarf-inlining"],
"single_no_inlining": ["-gsplit-dwarf=single", "-fno-split-dwarf-inlining"],
"split_no_inlining": ["-gsplit-dwarf=split", "-fno-split-dwarf-inlining"],
}
def _dwarf_size_flag(size):
if size == 32:
return []
else:
return ["-gdwarf{}".format(size)]
def customized_unittest(
available_dwarf_versions = [],
avilable_split_dwarf_keys = [],
available_dwarf_sizes = [],
extra_compiler_flags = [],
custom_suffix = ""):
# Testing different combinations of the following options:
# 1. Dwarf4 or Dwarf5.
# 2. Dwarf32 or Dwarf 64.
# 3. Split dwarf options.
# 4. Use aaranges or not.
for dwarf_version in available_dwarf_versions:
for dwarf_size in available_dwarf_sizes:
for split_dwarf_option in avilable_split_dwarf_keys:
# buck2 doesn't support split version yet.
if split_dwarf_option == "none" or split_dwarf_option == "single_inlining" or not is_buck2():
for use_aaranges in [False, True]:
cpp_library(
name = "symbolizer_test_utils_" + dwarf_version +
("_dwarf{}".format(dwarf_size)) +
("" if split_dwarf_option == "none" else "_" + split_dwarf_option) +
("_aaranges" if use_aaranges else "_noaaranges") + custom_suffix,
srcs = ["SymbolizerTestUtils.cpp"],
headers = [
"SymbolizerTestUtils.h",
"SymbolizerTestUtils-inl.h",
],
# Tests rely on this library having full debug info, so use `-g` to override
# the platform default, and use `--emit-relocs` to prevent `--strip-debug-*`
# flags from dropping debug info.
compiler_flags = ["-g"] +
(["-gdwarf-5"] if dwarf_version == "dwarf5" else ["-gdwarf-4"]) +
(_dwarf_size_flag(dwarf_size)) +
SPLIT_DWARF_FLAGS[split_dwarf_option] +
(["-gdwarf-aranges"] if use_aaranges else []) +
extra_compiler_flags,
modular_headers = False,
private_linker_flags = [
"--emit-relocs", # makes linker ignore `--strip-debug-*` flags
],
)
cpp_unittest(
name = "symbolizer_test_" + dwarf_version +
("_dwarf{}".format(dwarf_size)) +
("" if split_dwarf_option == "none" else "_" + split_dwarf_option) +
("_aaranges" if use_aaranges else "_noaaranges") + custom_suffix,
srcs = ["SymbolizerTest.cpp"],
supports_static_listing = True,
tags = ["dwp"] if split_dwarf_option == "single_inlining" and use_aaranges else [],
# This tests requires full debug info, so use `-g` to override the platform
# default, and use `--emit-relocs` to prevent `--strip-debug-*` flags from
# dropping debug info.
compiler_flags = ["-g"] +
(["-gdwarf-5"] if dwarf_version == "dwarf5" else ["-gdwarf-4"]) +
(_dwarf_size_flag(dwarf_size)) +
SPLIT_DWARF_FLAGS[split_dwarf_option] +
(["-gdwarf-aranges"] if use_aaranges else []) + extra_compiler_flags,
linker_flags = [
"--emit-relocs", # makes linker ignore `--strip-debug-*` flags
],
deps = [
":symbolizer_test_utils_" + dwarf_version +
("_dwarf{}".format(dwarf_size)) +
("" if split_dwarf_option == "none" else "_" + split_dwarf_option) +
("_aaranges" if use_aaranges else "_noaaranges"), # @manual
"//folly:demangle",
"//folly:range",
"//folly:scope_guard",
"//folly:string",
"//folly/experimental/symbolizer:elf_cache",
"//folly/experimental/symbolizer:symbolized_frame",
"//folly/experimental/symbolizer:symbolizer",
"//folly/experimental/symbolizer/detail:debug",
"//folly/portability:filesystem",
"//folly/portability:gtest",
"//folly/portability:unistd",
"//folly/synchronization:baton",
"//folly/test:test_utils",
],
external_deps = [
"glog",
],
)
def validate_folly_symbolizer(name, binary):
custom_unittest(
name = name,
command = [
"$(exe //folly/debugging/symbolizer/test:compare-addr2line.sh)",
"$(location //folly/debugging/symbolizer/tool:folly-addr2line)",
"$(location //third-party-buck/platform010/build/llvm-fb/15:bin/llvm-addr2line)",
"$(location {})".format(binary),
],
type = "simple",
)
def validate_symbolizer_dwp(name, binary):
# Only test in opt mode.
# In dev mode, the test still depends on the shared libraries except
# binary + dwp file.
if config.get_build_mode().startswith("opt"):
custom_unittest(
name = name,
command = [
"$(exe //folly/debugging/symbolizer/test:symbolizer_dwp_compability.sh)",
"$(location {})".format(binary),
"$(location {}[dwp])".format(binary),
config.get_build_mode(),
],
type = "simple",
)
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