Add Windows build support

Add CMake file for Windows build
Enable Windows builds in Travis CI

5 files changed, 420 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
index c639e892..cd3e197c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,7 @@
 *.lo
 *~
 *.pc
+bin
 
 .libs/
 .deps/
diff --git a/.travis.yml b/.travis.yml
index 7bf0f8d0..39f012bc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,16 @@ linux-s390x: &linux-s390x
     - ulimit -c unlimited
     - make check -j32
 
+windows-remote-only: &windows-remote-only
+  os: windows
+  env:
+  - TARGET=x86_64-linux-gnu    HOST=x64
+  - TARGET=arm-linux-gnueabihf HOST=Win32
+  - TARGET=aarch64-linux-gnu   HOST=x64
+  script:
+  - cmake -G "Visual Studio 15 2017" -A ${HOST} -S . -B bin/windows-${HOST}/${TARGET}
+  - cmake --build bin/windows-${HOST}/${TARGET}
+
 script:
 - ./autogen.sh
 - ./configure --target=$TARGET --host=$HOST
@@ -32,3 +42,4 @@ script:
 jobs:
   include:
     - <<: *linux-s390x
+    - <<: *windows-remote-only
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 00000000..782de14b
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,103 @@
+project(libunwind)
+
+cmake_minimum_required(VERSION 3.16.1)
+
+set(PKG_MAJOR "1")
+set(PKG_MINOR "5")
+set(PKG_EXTRA "-rc2")
+set(PACKAGE_STRING "libunwind")
+set(PACKAGE_BUGREPORT "")
+
+
+if ('$ENV{TARGET}' STREQUAL 'x86_64-linux-gnu')
+  set(TARGET_AMD64 1)
+  set(arch x86_64)
+  add_definitions(-D__x86_64__)
+  add_definitions(-D__amd64__)
+  add_definitions(-D__linux__)
+elseif ('$ENV{TARGET}' STREQUAL 'aarch64-linux-gnu')
+  set(TARGET_AARCH64 1)
+  set(arch aarch64)
+  add_definitions(-D__aarch64__)
+  add_definitions(-D__linux__)
+elseif ('$ENV{TARGET}' STREQUAL 'arm-linux-gnueabihf')
+  set(TARGET_ARM 1)
+  set(arch arm)
+  add_definitions(-D__arm__)
+  add_definitions(-D__linux__)
+else ()
+  message(FATAL_ERROR "Unrecognize value in environment variable TARGET")
+endif ()
+
+include(CheckCSourceCompiles)
+include(CheckIncludeFiles)
+
+if ("${CMAKE_GENERATOR}" MATCHES "^Visual Studio.*$")
+  message(VERBOSE "Using generator ${CMAKE_GENERATOR}")
+  # Assume we are using default MSVC compiler
+  add_compile_options(/std:c++latest)
+  add_compile_options(/TC) # compile all files as C
+  add_compile_options(/permissive-)
+
+  # files for cross os compilation
+  include_directories(include/win)
+
+  # Warnings in release builds
+  add_compile_options(-wd4068) # ignore unknown pragma warnings (gcc pragmas)
+  add_compile_options(-wd4146) # minus operator applied to unsigned
+  add_compile_options(-wd4244) # possible loss of data
+  add_compile_options(-wd4267) # possible loss of data
+  add_compile_options(-wd4334) # 32-bit shift implicitly converted to 64 bits
+
+  # Disable warning due to incorrect format specifier in debugging printf via the Debug macro
+  add_compile_options(-wd4311) # pointer truncation from 'unw_word_t *' to 'long'
+  add_compile_options(-wd4475) # 'fprintf' : length modifier 'L' cannot be used
+  add_compile_options(-wd4477) # fprintf argument type
+
+  # Windows builds will only support remote unwind
+  add_definitions(-DUNW_REMOTE_ONLY)
+
+  # Disable security warnings
+  add_definitions(-D_CRT_SECURE_NO_WARNINGS)
+
+  # Our posix abstraction layer will provide these headers
+  set(HAVE_ELF_H 1)
+  set(HAVE_ENDIAN_H 1)
+
+  # Abstraction layer requires defines for UCONTEXT sizes
+  # Fixme these sizes probably need to be consistent with the 
+  add_definitions(-DSIZEOF_UCONTENT=128)
+  add_definitions(-DSIZEOF_SIGINFO=128)
+  
+  # MSVC compiler is currently missing C11 stdalign.h header
+  # Fake it until support is added
+  check_include_files(stdalign.h HAVE_STDALIGN_H)
+  if (NOT HAVE_STDALIGN_H)
+    configure_file(include/win/fakestdalign.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/stdalign.h)
+  endif (NOT HAVE_STDALIGN_H)
+
+  # MSVC compiler is currently missing C11 stdatomic.h header
+  # Fake it until support is added
+  check_include_files(stdatomic.h HAVE_STDATOMIC_H)
+  if (NOT HAVE_STDATOMIC_H)
+    configure_file(include/win/fakestdatomic.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/stdatomic.h)
+  endif (NOT HAVE_STDATOMIC_H)
+  
+  # MSVC compiler is currently missing C11 _Thread_local
+  check_c_source_compiles("void main() { _Thread_local int a; }"  HAVE_THREAD_LOCAL)
+  if (NOT HAVE_THREAD_LOCAL)
+    add_definitions(-D_Thread_local=)
+  endif (NOT HAVE_THREAD_LOCAL)
+else ()
+  message(FATAL_ERROR "This CMake file is currently only designed for building on Visual Studio")
+endif ()
+
+add_definitions(-DHAVE_CONFIG_H)
+
+configure_file(include/config.h.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/include/config.h)
+configure_file(include/libunwind-common.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/libunwind-common.h)
+configure_file(include/libunwind.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/libunwind.h)
+configure_file(include/tdep/libunwind_i.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/tdep/libunwind_i.h)
+
+add_subdirectory(src)
+
diff --git a/include/config.h.cmake.in b/include/config.h.cmake.in
new file mode 100644
index 00000000..fc312ddb
--- /dev/null
+++ b/include/config.h.cmake.in
@@ -0,0 +1,10 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#cmakedefine01 HAVE_ELF_H
+#cmakedefine01 HAVE_ENDIAN_H
+
+#define PACKAGE_STRING "@PACKAGE_STRING@"
+#define PACKAGE_BUGREPORT "@PACKAGE_BUGREPORT@"
+
+#endif // CONFIG_H
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
new file mode 100644
index 00000000..43a61ff1
--- /dev/null
+++ b/src/CMakeLists.txt
@@ -0,0 +1,295 @@
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+# other source files
+include_directories(../include/tdep)
+include_directories(../include)
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/../include/tdep)
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/../include)
+
+if(TARGET_ARM)
+    # Ensure that the remote and local unwind code can reside in the same binary without name clashing
+    add_definitions("-Darm_search_unwind_table=UNW_OBJ(arm_search_unwind_table)")
+    # We compile code with -std=c99 and the asm keyword is not recognized as it is a gnu extension
+    add_definitions(-Dasm=__asm__)
+    # The arm sources include ex_tables.h from include/tdep-arm without going through a redirection
+    # in include/tdep like it works for similar files on other architectures. So we need to add
+    # the include/tdep-arm to include directories
+    include_directories(../include/tdep-arm)
+elseif(TARGET_AARCH64)
+    # We compile code with -std=c99 and the asm keyword is not recognized as it is a gnu extension
+    add_definitions(-Dasm=__asm__)
+endif()
+
+SET(libunwind_ptrace_la_SOURCES
+    ptrace/_UPT_elf.c
+    ptrace/_UPT_accessors.c ptrace/_UPT_access_fpreg.c
+    ptrace/_UPT_access_mem.c ptrace/_UPT_access_reg.c
+    ptrace/_UPT_create.c ptrace/_UPT_destroy.c
+    ptrace/_UPT_find_proc_info.c ptrace/_UPT_get_dyn_info_list_addr.c
+    ptrace/_UPT_put_unwind_info.c ptrace/_UPT_get_proc_name.c
+    ptrace/_UPT_reg_offset.c ptrace/_UPT_resume.c
+)
+
+SET(libunwind_coredump_la_SOURCES
+    coredump/_UCD_accessors.c
+    coredump/_UCD_create.c
+    coredump/_UCD_destroy.c
+    coredump/_UCD_access_mem.c
+    coredump/_UCD_elf_map_image.c
+    coredump/_UCD_find_proc_info.c
+    coredump/_UCD_get_proc_name.c
+
+    coredump/_UPT_elf.c
+    coredump/_UPT_access_fpreg.c
+    coredump/_UPT_get_dyn_info_list_addr.c
+    coredump/_UPT_put_unwind_info.c
+    coredump/_UPT_resume.c
+)
+
+# List of arch-independent files needed by generic library (libunwind-$ARCH):
+SET(libunwind_la_SOURCES_generic
+    mi/Gdyn-extract.c mi/Gdyn-remote.c mi/Gfind_dynamic_proc_info.c
+    # The Gget_accessors.c implements the same function as Lget_accessors.c, so
+    # the source is excluded here to prevent name clash
+    #mi/Gget_accessors.c
+    mi/Gget_proc_info_by_ip.c mi/Gget_proc_name.c
+    mi/Gput_dynamic_unwind_info.c mi/Gdestroy_addr_space.c
+    mi/Gget_reg.c mi/Gset_reg.c
+    mi/Gget_fpreg.c mi/Gset_fpreg.c
+    mi/Gset_caching_policy.c
+    mi/Gset_cache_size.c
+)
+
+SET(libunwind_la_SOURCES_os_linux
+    os-linux.c
+)
+
+SET(libunwind_la_SOURCES_os_linux_local
+# Nothing when we don't want to support CXX exceptions
+)
+
+SET(libunwind_la_SOURCES_os_freebsd
+    os-freebsd.c
+)
+
+SET(libunwind_la_SOURCES_os_freebsd_local
+# Nothing
+)
+
+SET(libunwind_la_SOURCES_os_solaris
+    os-solaris.c
+)
+
+SET(libunwind_la_SOURCES_os_solaris_local
+# Nothing
+)
+
+if(UNW_CMAKE_TARGET_LINUX)
+    SET(libunwind_la_SOURCES_os                 ${libunwind_la_SOURCES_os_linux})
+    SET(libunwind_la_SOURCES_os_local           ${libunwind_la_SOURCES_os_linux_local})
+    SET(libunwind_la_SOURCES_x86_os             x86/Gos-linux.c)
+    SET(libunwind_x86_la_SOURCES_os             x86/getcontext-linux.S)
+    SET(libunwind_la_SOURCES_x86_os_local       x86/Los-linux.c)
+    SET(libunwind_la_SOURCES_x86_64_os          x86_64/Gos-linux.c)
+    SET(libunwind_la_SOURCES_x86_64_os_local    x86_64/Los-linux.c)
+    SET(libunwind_la_SOURCES_arm_os             arm/Gos-linux.c)
+    SET(libunwind_la_SOURCES_arm_os_local       arm/Los-linux.c)
+    list(APPEND libunwind_coredump_la_SOURCES   coredump/_UCD_access_reg_linux.c)
+elseif(UNW_CMAKE_TARGET_FREEBSD)
+    SET(libunwind_la_SOURCES_os                 ${libunwind_la_SOURCES_os_freebsd})
+    SET(libunwind_la_SOURCES_os_local           ${libunwind_la_SOURCES_os_freebsd_local})
+    SET(libunwind_la_SOURCES_x86_os             x86/Gos-freebsd.c)
+    SET(libunwind_x86_la_SOURCES_os             x86/getcontext-freebsd.S)
+    SET(libunwind_la_SOURCES_x86_os_local       x86/Los-freebsd.c)
+    SET(libunwind_la_SOURCES_x86_64_os          x86_64/Gos-freebsd.c)
+    SET(libunwind_la_SOURCES_x86_64_os_local    x86_64/Los-freebsd.c)
+    SET(libunwind_la_SOURCES_arm_os             arm/Gos-freebsd.c)
+    SET(libunwind_la_SOURCES_arm_os_local       arm/Los-freebsd.c)
+    list(APPEND libunwind_coredump_la_SOURCES   coredump/_UCD_access_reg_freebsd.c)
+elseif(UNW_CMAKE_HOST_SUNOS)
+    SET(libunwind_la_SOURCES_os                 ${libunwind_la_SOURCES_os_solaris})
+    SET(libunwind_la_SOURCES_os_local           ${libunwind_la_SOURCES_os_solaris_local})
+    SET(libunwind_la_SOURCES_x86_64_os          x86_64/Gos-solaris.c)
+    SET(libunwind_la_SOURCES_x86_64_os_local    x86_64/Los-solaris.c)
+endif()
+
+# List of arch-independent files needed by both local-only and generic
+# libraries:
+SET(libunwind_la_SOURCES_common
+    ${libunwind_la_SOURCES_os}
+    mi/init.c mi/flush_cache.c mi/mempool.c mi/strerror.c
+)
+
+SET(libunwind_la_SOURCES_local_unwind
+# Nothing when we don't want to support CXX exceptions
+)
+
+# List of arch-independent files needed by local-only library (libunwind):
+SET(libunwind_la_SOURCES_local_nounwind
+    ${libunwind_la_SOURCES_os_local}
+    mi/backtrace.c
+    mi/dyn-cancel.c mi/dyn-info-list.c mi/dyn-register.c
+    mi/Ldyn-extract.c mi/Lfind_dynamic_proc_info.c
+    mi/Lget_accessors.c
+    mi/Lget_proc_info_by_ip.c mi/Lget_proc_name.c
+    mi/Lput_dynamic_unwind_info.c mi/Ldestroy_addr_space.c
+    mi/Lget_reg.c   mi/Lset_reg.c
+    mi/Lget_fpreg.c mi/Lset_fpreg.c
+    mi/Lset_caching_policy.c
+    mi/Lset_cache_size.c
+)
+
+SET(libunwind_la_SOURCES_local
+    ${libunwind_la_SOURCES_local_nounwind}
+    ${libunwind_la_SOURCES_local_unwind}
+)
+
+SET(libunwind_dwarf_common_la_SOURCES
+    dwarf/global.c
+)
+
+SET(libunwind_dwarf_local_la_SOURCES
+    dwarf/Lexpr.c dwarf/Lfde.c dwarf/Lparser.c dwarf/Lpe.c
+    dwarf/Lfind_proc_info-lsb.c
+    dwarf/Lfind_unwind_table.c
+)
+
+SET(libunwind_dwarf_generic_la_SOURCES
+    dwarf/Gexpr.c dwarf/Gfde.c dwarf/Gparser.c dwarf/Gpe.c
+    dwarf/Gfind_proc_info-lsb.c
+    dwarf/Gfind_unwind_table.c
+)
+
+SET(libunwind_elf32_la_SOURCES
+    elf32.c
+)
+
+SET(libunwind_elf64_la_SOURCES
+    elf64.c
+)
+SET(libunwind_elfxx_la_SOURCES
+    elfxx.c
+)
+
+# The list of files that go into libunwind and libunwind-aarch64:
+SET(libunwind_la_SOURCES_aarch64_common
+    ${libunwind_la_SOURCES_common}
+    aarch64/is_fpreg.c
+    aarch64/regname.c
+)
+
+# The list of files that go into libunwind:
+SET(libunwind_la_SOURCES_aarch64
+    ${libunwind_la_SOURCES_aarch64_common}
+    ${libunwind_la_SOURCES_local}
+    aarch64/Lapply_reg_state.c aarch64/Lreg_states_iterate.c
+    aarch64/Lcreate_addr_space.c aarch64/Lget_proc_info.c
+    aarch64/Lget_save_loc.c aarch64/Lglobal.c aarch64/Linit.c
+    aarch64/Linit_local.c aarch64/Linit_remote.c
+    aarch64/Lis_signal_frame.c aarch64/Lregs.c aarch64/Lresume.c
+    aarch64/Lstash_frame.c aarch64/Lstep.c aarch64/Ltrace.c
+    aarch64/getcontext.S
+)
+
+SET(libunwind_aarch64_la_SOURCES_aarch64
+    ${libunwind_la_SOURCES_aarch64_common}
+    ${libunwind_la_SOURCES_generic}
+    aarch64/Gapply_reg_state.c aarch64/Greg_states_iterate.c
+    aarch64/Gcreate_addr_space.c aarch64/Gget_proc_info.c
+    aarch64/Gget_save_loc.c aarch64/Gglobal.c aarch64/Ginit.c
+    aarch64/Ginit_local.c aarch64/Ginit_remote.c
+    aarch64/Gis_signal_frame.c aarch64/Gregs.c aarch64/Gresume.c
+    aarch64/Gstash_frame.c aarch64/Gstep.c aarch64/Gtrace.c
+)
+
+# The list of files that go into libunwind and libunwind-arm:
+SET(libunwind_la_SOURCES_arm_common
+    ${libunwind_la_SOURCES_common}
+    arm/is_fpreg.c arm/regname.c
+)
+
+# The list of files that go into libunwind:
+SET(libunwind_la_SOURCES_arm
+    ${libunwind_la_SOURCES_arm_common}
+    ${libunwind_la_SOURCES_arm_os_local}
+    ${libunwind_la_SOURCES_local}
+    arm/getcontext.S
+    arm/Lapply_reg_state.c arm/Lreg_states_iterate.c
+    arm/Lcreate_addr_space.c arm/Lget_proc_info.c arm/Lget_save_loc.c
+    arm/Lglobal.c arm/Linit.c arm/Linit_local.c arm/Linit_remote.c
+    arm/Lregs.c arm/Lresume.c arm/Lstep.c
+    arm/Lex_tables.c arm/Lstash_frame.c arm/Ltrace.c
+)
+
+# The list of files that go into libunwind-arm:
+SET(libunwind_arm_la_SOURCES_arm
+    ${libunwind_la_SOURCES_arm_common}
+    ${libunwind_la_SOURCES_arm_os}
+    ${libunwind_la_SOURCES_generic}
+    arm/Gapply_reg_state.c arm/Greg_states_iterate.c
+    arm/Gcreate_addr_space.c arm/Gget_proc_info.c arm/Gget_save_loc.c
+    arm/Gglobal.c arm/Ginit.c arm/Ginit_local.c arm/Ginit_remote.c
+    arm/Gregs.c arm/Gresume.c arm/Gstep.c
+    arm/Gex_tables.c arm/Gstash_frame.c arm/Gtrace.c
+)
+
+# The list of files that go both into libunwind and libunwind-x86_64:
+SET(libunwind_la_SOURCES_x86_64_common
+    ${libunwind_la_SOURCES_common}
+    x86_64/is_fpreg.c x86_64/regname.c
+)
+
+# The list of files that go into libunwind:
+SET(libunwind_la_SOURCES_x86_64
+    ${libunwind_la_SOURCES_x86_64_common}
+    ${libunwind_la_SOURCES_x86_64_os_local}
+    ${libunwind_la_SOURCES_local}
+    x86_64/setcontext.S
+    x86_64/Lapply_reg_state.c x86_64/Lreg_states_iterate.c
+    x86_64/Lcreate_addr_space.c x86_64/Lget_save_loc.c x86_64/Lglobal.c
+    x86_64/Linit.c x86_64/Linit_local.c x86_64/Linit_remote.c
+    x86_64/Lget_proc_info.c x86_64/Lregs.c x86_64/Lresume.c
+    x86_64/Lstash_frame.c x86_64/Lstep.c x86_64/Ltrace.c x86_64/getcontext.S
+)
+
+# The list of files that go into libunwind-x86_64:
+SET(libunwind_x86_64_la_SOURCES_x86_64
+    ${libunwind_la_SOURCES_x86_64_common}
+    ${libunwind_la_SOURCES_x86_64_os}
+    ${libunwind_la_SOURCES_generic}
+    x86_64/Gapply_reg_state.c x86_64/Greg_states_iterate.c
+    x86_64/Gcreate_addr_space.c x86_64/Gget_save_loc.c x86_64/Gglobal.c
+    x86_64/Ginit.c x86_64/Ginit_local.c x86_64/Ginit_remote.c
+    x86_64/Gget_proc_info.c x86_64/Gregs.c x86_64/Gresume.c
+    x86_64/Gstash_frame.c x86_64/Gstep.c x86_64/Gtrace.c
+)
+
+if(TARGET_AARCH64)
+    SET(libunwind_la_SOURCES                    ${libunwind_la_SOURCES_aarch64})
+    SET(libunwind_remote_la_SOURCES             ${libunwind_aarch64_la_SOURCES_aarch64})
+    SET(libunwind_elf_la_SOURCES                ${libunwind_elf64_la_SOURCES})
+    list(APPEND libunwind_setjmp_la_SOURCES     aarch64/siglongjmp.S)
+elseif(TARGET_ARM)
+    SET(libunwind_la_SOURCES                    ${libunwind_la_SOURCES_arm})
+    SET(libunwind_remote_la_SOURCES             ${libunwind_arm_la_SOURCES_arm})
+    SET(libunwind_elf_la_SOURCES                ${libunwind_elf32_la_SOURCES})
+    list(APPEND libunwind_setjmp_la_SOURCES     arm/siglongjmp.S)
+elseif(TARGET_AMD64)
+    SET(libunwind_la_SOURCES                    ${libunwind_la_SOURCES_x86_64})
+    SET(libunwind_remote_la_SOURCES             ${libunwind_x86_64_la_SOURCES_x86_64})
+    SET(libunwind_elf_la_SOURCES                ${libunwind_elf64_la_SOURCES})
+    list(APPEND libunwind_setjmp_la_SOURCES     x86_64/longjmp.S x86_64/siglongjmp.SA)
+endif()
+
+add_library(libunwind
+  OBJECT
+  win/pal-single-threaded.c
+  # ${libunwind_la_SOURCES}  Local...
+  ${libunwind_remote_la_SOURCES}
+    # Commented out above for LOCAL + REMOTE runtime build
+    mi/Gget_accessors.c
+  # ${libunwind_dwarf_local_la_SOURCES}
+  ${libunwind_dwarf_common_la_SOURCES}
+  ${libunwind_dwarf_generic_la_SOURCES}
+  ${libunwind_elf_la_SOURCES}
+)