sandboxed-api/sandboxed_api/bazel/external/libunwind.BUILD

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# Copyright 2019 Google LLC. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
LIBUNWIND_COPTS = [
"-DHAVE_CONFIG_H",
"-D_GNU_SOURCE",
"-Iexternal/org_gnu_libunwind/include",
"-Iexternal/org_gnu_libunwind/include/tdep",
"-Iexternal/org_gnu_libunwind/src",
]
filegroup(
name = "internal_headers",
srcs = [
"include/compiler.h",
"include/config.h",
"include/dwarf.h",
"include/dwarf-eh.h",
"include/dwarf_i.h",
"include/libunwind.h",
"include/libunwind-common.h",
"include/libunwind-coredump.h",
"include/libunwind-dynamic.h",
"include/libunwind-ptrace.h",
"include/libunwind-x86_64.h",
"include/libunwind_i.h",
"include/mempool.h",
"include/remote.h",
"include/tdep-x86_64/dwarf-config.h",
"include/tdep-x86_64/libunwind_i.h",
"include/tdep/dwarf-config.h",
"include/tdep/libunwind_i.h",
"include/unwind.h",
"src/elf32.h",
"src/elf64.h",
"src/elfxx.h",
"src/os-linux.h",
"src/x86_64/init.h",
"src/x86_64/offsets.h",
"src/x86_64/ucontext_i.h",
"src/x86_64/unwind_i.h",
],
)
# Header-only library for included source files.
cc_library(
name = "included_sources",
srcs = [
"src/elf64.h",
"src/elfxx.h",
],
hdrs = [
"src/elfxx.c", # Included by elf32.c/elf64.c
],
)
filegroup(
name = "sources_common",
srcs = [
"src/dwarf/Gexpr.c",
"src/dwarf/Gfde.c",
"src/dwarf/Gfind_proc_info-lsb.c",
"src/dwarf/Gfind_unwind_table.c",
"src/dwarf/Gparser.c",
"src/dwarf/Gpe.c",
"src/dwarf/Gstep.c",
"src/dwarf/global.c",
"src/mi/Gdestroy_addr_space.c",
"src/mi/Gdyn-extract.c",
"src/mi/Gfind_dynamic_proc_info.c",
"src/mi/Gget_accessors.c",
"src/mi/Gget_proc_name.c",
"src/mi/Gget_reg.c",
"src/mi/Gput_dynamic_unwind_info.c",
"src/mi/flush_cache.c",
"src/mi/init.c",
"src/mi/mempool.c",
"src/os-linux.c",
"src/x86_64/Gcreate_addr_space.c",
"src/x86_64/Gglobal.c",
"src/x86_64/Ginit.c",
"src/x86_64/Gos-linux.c",
"src/x86_64/Gregs.c",
"src/x86_64/Gresume.c",
"src/x86_64/Gstash_frame.c",
"src/x86_64/Gstep.c",
"src/x86_64/is_fpreg.c",
"src/x86_64/setcontext.S",
":internal_headers",
],
)
filegroup(
name = "sources_ptrace",
srcs = ["src/x86_64/Ginit_remote.c"],
)
[cc_library(
name = "unwind-ptrace" + ("-wrapped" if do_wrap else ""),
srcs = [
"src/mi/Gdyn-remote.c",
"src/ptrace/_UPT_access_fpreg.c",
"src/ptrace/_UPT_access_mem.c",
"src/ptrace/_UPT_access_reg.c",
"src/ptrace/_UPT_accessors.c",
"src/ptrace/_UPT_create.c",
"src/ptrace/_UPT_destroy.c",
"src/ptrace/_UPT_elf.c",
"src/ptrace/_UPT_find_proc_info.c",
"src/ptrace/_UPT_get_dyn_info_list_addr.c",
"src/ptrace/_UPT_get_proc_name.c",
"src/ptrace/_UPT_internal.h",
"src/ptrace/_UPT_put_unwind_info.c",
"src/ptrace/_UPT_reg_offset.c",
"src/ptrace/_UPT_resume.c",
":internal_headers",
":sources_common",
":sources_ptrace",
],
hdrs = [
"include/config.h",
"include/libunwind.h",
],
copts = LIBUNWIND_COPTS + [
# Assume our inferior doesn't have frame pointers, regardless of
# whether we ourselves do or not.
"-DNO_FRAME_POINTER",
"-fno-common",
# Ignore warning in src/ptrace/_UPT_get_dyn_info_list_addr.c
"-Wno-cpp",
] + (
["-D{symbol}={symbol}_wrapped".format(symbol = symbol) for symbol in [
"ptrace",
"_UPT_create",
"_UPT_accessors",
"_UPT_destroy",
"_Ux86_64_create_addr_space",
"_Ux86_64_destroy_addr_space",
"_Ux86_64_init_remote",
"_Ux86_64_step",
"_Ux86_64_get_proc_name",
"_Ux86_64_get_reg",
]] if do_wrap else []
),
visibility = ["//visibility:public"],
deps = [":included_sources"],
# This forces a link failure in any target that depends on both
# unwind-ptrace and unwind-ptrace-wrapped.
alwayslink = 1,
) for do_wrap in [
True,
False,
]]