build libunwind.a from source and link it
Andrew Kelley
parent
5cecb5e479
commit
ba144b366c
224
CMakeLists.txt
224
CMakeLists.txt
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@ -1408,6 +1408,219 @@ set(ZIG_LIBC_FILES
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"glibc/time/time.h"
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)
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set(ZIG_LIBUNWIND_FILES
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"include/__libunwind_config.h"
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"include/libunwind.h"
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"include/mach-o/compact_unwind_encoding.h"
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"include/unwind.h"
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"src/AddressSpace.hpp"
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"src/CompactUnwinder.hpp"
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"src/DwarfInstructions.hpp"
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"src/DwarfParser.hpp"
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"src/EHHeaderParser.hpp"
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"src/RWMutex.hpp"
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"src/Registers.hpp"
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"src/Unwind-EHABI.cpp"
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"src/Unwind-EHABI.h"
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"src/Unwind-seh.cpp"
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"src/Unwind-sjlj.c"
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"src/UnwindCursor.hpp"
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"src/UnwindLevel1-gcc-ext.c"
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"src/UnwindLevel1.c"
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"src/UnwindRegistersRestore.S"
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"src/UnwindRegistersSave.S"
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"src/Unwind_AppleExtras.cpp"
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"src/assembly.h"
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"src/config.h"
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"src/dwarf2.h"
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"src/libunwind.cpp"
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"src/libunwind_ext.h"
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)
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set(ZIG_LIBCXX_FILES
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"include/__bit_reference"
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"include/__bsd_locale_defaults.h"
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"include/__bsd_locale_fallbacks.h"
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"include/__config"
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"include/__config_site.in"
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"include/__debug"
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"include/__errc"
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"include/__functional_03"
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"include/__functional_base"
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"include/__functional_base_03"
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"include/__hash_table"
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"include/__libcpp_version"
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"include/__locale"
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"include/__mutex_base"
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"include/__node_handle"
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"include/__nullptr"
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"include/__split_buffer"
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"include/__sso_allocator"
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"include/__std_stream"
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"include/__string"
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"include/__threading_support"
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"include/__tree"
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"include/__tuple"
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"include/__undef_macros"
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"include/algorithm"
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"include/any"
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"include/array"
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"include/atomic"
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"include/bit"
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"include/bitset"
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"include/cassert"
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"include/ccomplex"
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"include/cctype"
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"include/cerrno"
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"include/cfenv"
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"include/cfloat"
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"include/charconv"
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"include/chrono"
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"include/cinttypes"
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"include/ciso646"
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"include/climits"
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"include/clocale"
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"include/cmath"
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"include/codecvt"
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"include/compare"
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"include/complex"
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"include/complex.h"
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"include/condition_variable"
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"include/csetjmp"
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"include/csignal"
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"include/cstdarg"
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"include/cstdbool"
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"include/cstddef"
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"include/cstdint"
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"include/cstdio"
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"include/cstdlib"
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"include/cstring"
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"include/ctgmath"
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"include/ctime"
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"include/ctype.h"
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"include/cwchar"
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"include/cwctype"
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"include/deque"
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"include/errno.h"
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"include/exception"
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"include/experimental/__config"
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"include/experimental/__memory"
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"include/experimental/algorithm"
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"include/experimental/any"
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"include/experimental/chrono"
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"include/experimental/coroutine"
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"include/experimental/deque"
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"include/experimental/filesystem"
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"include/experimental/forward_list"
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"include/experimental/functional"
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"include/experimental/iterator"
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"include/experimental/list"
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"include/experimental/map"
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"include/experimental/memory_resource"
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"include/experimental/numeric"
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"include/experimental/optional"
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"include/experimental/propagate_const"
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"include/experimental/ratio"
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"include/experimental/regex"
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"include/experimental/set"
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"include/experimental/simd"
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"include/experimental/string"
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"include/experimental/string_view"
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"include/experimental/system_error"
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"include/experimental/tuple"
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"include/experimental/type_traits"
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"include/experimental/unordered_map"
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"include/experimental/unordered_set"
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"include/experimental/utility"
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"include/experimental/vector"
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"include/ext/__hash"
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"include/ext/hash_map"
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"include/ext/hash_set"
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"include/filesystem"
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"include/float.h"
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"include/forward_list"
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"include/fstream"
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"include/functional"
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"include/future"
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"include/initializer_list"
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"include/inttypes.h"
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"include/iomanip"
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"include/ios"
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"include/iosfwd"
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"include/iostream"
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"include/istream"
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"include/iterator"
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"include/limits"
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"include/limits.h"
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"include/list"
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"include/locale"
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"include/locale.h"
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"include/map"
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"include/math.h"
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"include/memory"
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"include/module.modulemap"
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"include/mutex"
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"include/new"
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"include/numeric"
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"include/optional"
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"include/ostream"
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"include/queue"
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"include/random"
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"include/ratio"
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"include/regex"
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"include/scoped_allocator"
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"include/set"
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"include/setjmp.h"
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"include/shared_mutex"
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"include/span"
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"include/sstream"
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"include/stack"
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"include/stdbool.h"
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"include/stddef.h"
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"include/stdexcept"
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"include/stdint.h"
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"include/stdio.h"
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"include/stdlib.h"
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"include/streambuf"
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"include/string"
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"include/string.h"
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"include/string_view"
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"include/strstream"
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"include/support/android/locale_bionic.h"
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"include/support/fuchsia/xlocale.h"
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"include/support/ibm/limits.h"
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"include/support/ibm/locale_mgmt_aix.h"
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"include/support/ibm/support.h"
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"include/support/ibm/xlocale.h"
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"include/support/musl/xlocale.h"
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"include/support/newlib/xlocale.h"
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"include/support/solaris/floatingpoint.h"
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"include/support/solaris/wchar.h"
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"include/support/solaris/xlocale.h"
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"include/support/win32/limits_msvc_win32.h"
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"include/support/win32/locale_win32.h"
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"include/support/xlocale/__nop_locale_mgmt.h"
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"include/support/xlocale/__posix_l_fallback.h"
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"include/support/xlocale/__strtonum_fallback.h"
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"include/support/xlocale/xlocale.h"
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"include/system_error"
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"include/tgmath.h"
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"include/thread"
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"include/tuple"
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"include/type_traits"
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"include/typeindex"
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"include/typeinfo"
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"include/unordered_map"
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"include/unordered_set"
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"include/utility"
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"include/valarray"
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"include/variant"
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"include/vector"
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"include/version"
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"include/wchar.h"
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"include/wctype.h"
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)
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if(MSVC)
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set(MSVC_DIA_SDK_DIR "$ENV{VSINSTALLDIR}DIA SDK")
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if (IS_DIRECTORY ${MSVC_DIA_SDK_DIR})
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@ -1419,6 +1632,8 @@ endif()
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set(ZIG_LIB_DIR "lib/zig")
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set(C_HEADERS_DEST "${ZIG_LIB_DIR}/include")
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set(LIBC_FILES_DEST "${ZIG_LIB_DIR}/libc")
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set(LIBUNWIND_FILES_DEST "${ZIG_LIB_DIR}/libunwind")
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set(LIBCXX_FILES_DEST "${ZIG_LIB_DIR}/libcxx")
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set(ZIG_STD_DEST "${ZIG_LIB_DIR}/std")
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set(CONFIGURE_OUT_FILE "${CMAKE_BINARY_DIR}/config.h")
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configure_file (
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@ -1527,6 +1742,15 @@ foreach(file ${ZIG_LIBC_FILES})
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install(FILES "${CMAKE_SOURCE_DIR}/libc/${file}" DESTINATION "${file_dir}")
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endforeach()
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foreach(file ${ZIG_LIBUNWIND_FILES})
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get_filename_component(file_dir "${LIBUNWIND_FILES_DEST}/${file}" DIRECTORY)
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install(FILES "${CMAKE_SOURCE_DIR}/libunwind/${file}" DESTINATION "${file_dir}")
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endforeach()
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foreach(file ${ZIG_LIBCXX_FILES})
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get_filename_component(file_dir "${LIBCXX_FILES_DEST}/${file}" DIRECTORY)
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install(FILES "${CMAKE_SOURCE_DIR}/libcxx/${file}" DESTINATION "${file_dir}")
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endforeach()
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install(FILES "${CMAKE_SOURCE_DIR}/src-self-hosted/arg.zig" DESTINATION "${ZIG_STD_DEST}/special/fmt/")
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install(FILES "${CMAKE_SOURCE_DIR}/src-self-hosted/main.zig" DESTINATION "${ZIG_STD_DEST}/special/fmt/")
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@ -8275,7 +8275,8 @@ static Error get_tmp_filename(CodeGen *g, Buf *out, Buf *suffix) {
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return ErrorNone;
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}
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static void gen_c_object(CodeGen *g, Buf *self_exe_path, CFile *c_file) {
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// returns true if it was a cache miss
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static bool gen_c_object(CodeGen *g, Buf *self_exe_path, CFile *c_file) {
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Error err;
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Buf *artifact_dir;
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@ -8346,8 +8347,8 @@ static void gen_c_object(CodeGen *g, Buf *self_exe_path, CFile *c_file) {
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}
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exit(1);
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}
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if (buf_len(&digest) == 0) {
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// cache miss
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bool is_cache_miss = (buf_len(&digest) == 0);
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if (is_cache_miss) {
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// we can't know the digest until we do the C compiler invocation, so we
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// need a tmp filename.
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Buf *out_obj_path = buf_alloc();
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@ -8428,10 +8429,12 @@ static void gen_c_object(CodeGen *g, Buf *self_exe_path, CFile *c_file) {
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}
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break;
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case BuildModeFastRelease:
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args.append("-DNDEBUG");
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args.append("-O2");
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args.append("-fno-stack-protector");
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break;
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case BuildModeSmallRelease:
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args.append("-DNDEBUG");
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args.append("-Os");
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args.append("-fno-stack-protector");
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break;
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@ -8504,13 +8507,17 @@ static void gen_c_object(CodeGen *g, Buf *self_exe_path, CFile *c_file) {
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g->link_objects.append(o_final_path);
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g->caches_to_release.append(cache_hash);
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return is_cache_miss;
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}
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static void gen_c_objects(CodeGen *g) {
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// returns true if we had any cache misses
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static bool gen_c_objects(CodeGen *g) {
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Error err;
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bool any_cache_misses = false;
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if (g->c_source_files.length == 0)
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return;
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return any_cache_misses;
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Buf *self_exe_path = buf_alloc();
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if ((err = os_self_exe_path(self_exe_path))) {
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@ -8522,8 +8529,10 @@ static void gen_c_objects(CodeGen *g) {
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for (size_t c_file_i = 0; c_file_i < g->c_source_files.length; c_file_i += 1) {
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CFile *c_file = g->c_source_files.at(c_file_i);
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gen_c_object(g, self_exe_path, c_file);
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bool is_cache_miss = gen_c_object(g, self_exe_path, c_file);
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any_cache_misses = any_cache_misses || is_cache_miss;
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}
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return any_cache_misses;
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}
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void codegen_add_object(CodeGen *g, Buf *object_path) {
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@ -9020,7 +9029,8 @@ static void add_cache_pkg(CodeGen *g, CacheHash *ch, ZigPackage *pkg) {
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}
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// Called before init()
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static Error check_cache(CodeGen *g, Buf *manifest_dir, Buf *digest) {
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// is_cache_hit takes into account gen_c_objects
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static Error check_cache(CodeGen *g, Buf *manifest_dir, Buf *digest, bool *c_objects_generated) {
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Error err;
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Buf *compiler_id;
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@ -9081,7 +9091,7 @@ static Error check_cache(CodeGen *g, Buf *manifest_dir, Buf *digest) {
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}
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cache_buf(ch, g->dynamic_linker_path);
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gen_c_objects(g);
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*c_objects_generated = gen_c_objects(g);
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buf_resize(digest, 0);
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if ((err = cache_hit(ch, digest)))
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@ -9188,11 +9198,12 @@ void codegen_build_and_link(CodeGen *g) {
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Buf *artifact_dir = buf_alloc();
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Buf digest = BUF_INIT;
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bool any_c_objects_generated;
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if (g->enable_cache) {
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Buf *manifest_dir = buf_alloc();
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os_path_join(g->cache_dir, buf_create_from_str("build"), manifest_dir);
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if ((err = check_cache(g, manifest_dir, &digest))) {
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if ((err = check_cache(g, manifest_dir, &digest, &any_c_objects_generated))) {
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if (err == ErrorCacheUnavailable) {
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// message already printed
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} else {
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@ -9204,24 +9215,28 @@ void codegen_build_and_link(CodeGen *g) {
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os_path_join(g->cache_dir, buf_create_from_str("artifact"), artifact_dir);
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} else {
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// There is a call to this in check_cache
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gen_c_objects(g);
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any_c_objects_generated = gen_c_objects(g);
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}
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if (g->enable_cache && buf_len(&digest) != 0) {
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if (g->enable_cache && buf_len(&digest) != 0 && !any_c_objects_generated) {
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os_path_join(artifact_dir, &digest, &g->artifact_dir);
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resolve_out_paths(g);
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} else {
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init(g);
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if (need_llvm_module(g)) {
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init(g);
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codegen_add_time_event(g, "Semantic Analysis");
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codegen_add_time_event(g, "Semantic Analysis");
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gen_global_asm(g);
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gen_root_source(g);
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gen_global_asm(g);
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gen_root_source(g);
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}
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if (g->enable_cache) {
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if ((err = cache_final(&g->cache_hash, &digest))) {
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fprintf(stderr, "Unable to finalize cache hash: %s\n", err_str(err));
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exit(1);
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if (buf_len(&digest) == 0) {
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if ((err = cache_final(&g->cache_hash, &digest))) {
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fprintf(stderr, "Unable to finalize cache hash: %s\n", err_str(err));
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exit(1);
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}
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}
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os_path_join(artifact_dir, &digest, &g->artifact_dir);
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} else {
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@ -9233,9 +9248,9 @@ void codegen_build_and_link(CodeGen *g) {
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}
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resolve_out_paths(g);
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codegen_add_time_event(g, "Code Generation");
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if (need_llvm_module(g)) {
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codegen_add_time_event(g, "Code Generation");
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do_code_gen(g);
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codegen_add_time_event(g, "LLVM Emit Output");
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zig_llvm_emit_output(g);
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@ -10,6 +10,7 @@ static Buf saved_lib_dir = BUF_INIT;
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static Buf saved_special_dir = BUF_INIT;
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static Buf saved_std_dir = BUF_INIT;
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static Buf saved_dynamic_linker_path = BUF_INIT;
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static bool searched_for_dyn_linker = false;
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Buf *get_stage1_cache_path(void) {
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if (saved_stage1_path.list.length != 0) {
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@ -24,6 +25,35 @@ Buf *get_stage1_cache_path(void) {
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return &saved_stage1_path;
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}
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static void detect_dynamic_linker(Buf *lib_path) {
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#if defined(ZIG_OS_LINUX) && defined(ZIG_ARCH_X86_64)
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if (buf_ends_with_str(lib_path, "ld-linux-x86-64.so.2")) {
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buf_init_from_buf(&saved_dynamic_linker_path, lib_path);
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} else if (buf_ends_with_str(lib_path, "ld-musl-x86-64.so.1")) {
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buf_init_from_buf(&saved_dynamic_linker_path, lib_path);
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}
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#endif
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}
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Buf *get_self_dynamic_linker_path(void) {
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for (;;) {
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if (saved_dynamic_linker_path.list.length != 0) {
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return &saved_dynamic_linker_path;
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}
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if (searched_for_dyn_linker)
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return nullptr;
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ZigList<Buf *> lib_paths = {};
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Error err;
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if ((err = os_self_exe_shared_libs(lib_paths)))
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return nullptr;
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for (size_t i = 0; i < lib_paths.length; i += 1) {
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Buf *lib_path = lib_paths.at(i);
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detect_dynamic_linker(lib_path);
|
||||
}
|
||||
searched_for_dyn_linker = true;
|
||||
}
|
||||
}
|
||||
|
||||
Error get_compiler_id(Buf **result) {
|
||||
if (saved_compiler_id.list.length != 0) {
|
||||
*result = &saved_compiler_id;
|
||||
|
|
@ -57,15 +87,9 @@ Error get_compiler_id(Buf **result) {
|
|||
return err;
|
||||
for (size_t i = 0; i < lib_paths.length; i += 1) {
|
||||
Buf *lib_path = lib_paths.at(i);
|
||||
detect_dynamic_linker(lib_path);
|
||||
if ((err = cache_add_file(ch, lib_path)))
|
||||
return err;
|
||||
#if defined(ZIG_OS_LINUX) && defined(ZIG_ARCH_X86_64)
|
||||
if (buf_ends_with_str(lib_path, "ld-linux-x86-64.so.2")) {
|
||||
buf_init_from_buf(&saved_dynamic_linker_path, lib_path);
|
||||
} else if (buf_ends_with_str(lib_path, "ld-musl-x86-64.so.1")) {
|
||||
buf_init_from_buf(&saved_dynamic_linker_path, lib_path);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
if ((err = cache_final(ch, &saved_compiler_id)))
|
||||
return err;
|
||||
|
|
@ -76,12 +100,6 @@ Error get_compiler_id(Buf **result) {
|
|||
return ErrorNone;
|
||||
}
|
||||
|
||||
Buf *get_self_dynamic_linker_path(void) {
|
||||
Buf *dontcare;
|
||||
(void)get_compiler_id(&dontcare); // for the side-effects of caching the dynamic linker path
|
||||
return (saved_dynamic_linker_path.list.length == 0) ? nullptr : &saved_dynamic_linker_path;
|
||||
}
|
||||
|
||||
static bool test_zig_install_prefix(Buf *test_path, Buf *out_zig_lib_dir) {
|
||||
Buf lib_buf = BUF_INIT;
|
||||
buf_init_from_str(&lib_buf, "lib");
|
||||
|
|
|
|||
88
src/link.cpp
88
src/link.cpp
|
|
@ -62,14 +62,22 @@ static const char *build_libc_object(CodeGen *parent_gen, const char *name, CFil
|
|||
return buf_ptr(&child_gen->output_file_path);
|
||||
}
|
||||
|
||||
static const char *path_from_libc(CodeGen *g, const char *subpath) {
|
||||
Buf *libc_dir = buf_alloc();
|
||||
os_path_join(g->zig_lib_dir, buf_create_from_str("libc"), libc_dir);
|
||||
static const char *path_from_zig_lib(CodeGen *g, const char *dir, const char *subpath) {
|
||||
Buf *dir1 = buf_alloc();
|
||||
os_path_join(g->zig_lib_dir, buf_create_from_str(dir), dir1);
|
||||
Buf *result = buf_alloc();
|
||||
os_path_join(libc_dir, buf_create_from_str(subpath), result);
|
||||
os_path_join(dir1, buf_create_from_str(subpath), result);
|
||||
return buf_ptr(result);
|
||||
}
|
||||
|
||||
static const char *path_from_libc(CodeGen *g, const char *subpath) {
|
||||
return path_from_zig_lib(g, "libc", subpath);
|
||||
}
|
||||
|
||||
static const char *path_from_libunwind(CodeGen *g, const char *subpath) {
|
||||
return path_from_zig_lib(g, "libunwind", subpath);
|
||||
}
|
||||
|
||||
static const char *build_dummy_so(CodeGen *parent, const char *name, size_t major_version) {
|
||||
Buf *glibc_dummy_root_src = buf_sprintf("%s" OS_SEP "libc" OS_SEP "dummy" OS_SEP "%s.zig",
|
||||
buf_ptr(parent->zig_lib_dir), name);
|
||||
|
|
@ -81,6 +89,70 @@ static const char *build_dummy_so(CodeGen *parent, const char *name, size_t majo
|
|||
return buf_ptr(&child_gen->output_file_path);
|
||||
}
|
||||
|
||||
static const char *build_libunwind(CodeGen *parent) {
|
||||
CodeGen *child_gen = create_child_codegen(parent, nullptr, OutTypeLib, nullptr);
|
||||
codegen_set_out_name(child_gen, buf_create_from_str("unwind"));
|
||||
child_gen->is_static = true;
|
||||
LinkLib *new_link_lib = codegen_add_link_lib(child_gen, buf_create_from_str("c"));
|
||||
new_link_lib->provided_explicitly = false;
|
||||
enum SrcKind {
|
||||
SrcCpp,
|
||||
SrcC,
|
||||
SrcAsm,
|
||||
};
|
||||
static const struct {
|
||||
const char *path;
|
||||
SrcKind kind;
|
||||
} unwind_src[] = {
|
||||
{"src" OS_SEP "libunwind.cpp", SrcCpp},
|
||||
{"src" OS_SEP "Unwind-EHABI.cpp", SrcCpp},
|
||||
{"src" OS_SEP "Unwind-seh.cpp", SrcCpp},
|
||||
|
||||
{"src" OS_SEP "UnwindLevel1.c", SrcC},
|
||||
{"src" OS_SEP "UnwindLevel1-gcc-ext.c", SrcC},
|
||||
{"src" OS_SEP "Unwind-sjlj.c", SrcC},
|
||||
|
||||
{"src" OS_SEP "UnwindRegistersRestore.S", SrcAsm},
|
||||
{"src" OS_SEP "UnwindRegistersSave.S", SrcAsm},
|
||||
};
|
||||
ZigList<CFile *> c_source_files = {0};
|
||||
for (size_t i = 0; i < array_length(unwind_src); i += 1) {
|
||||
CFile *c_file = allocate<CFile>(1);
|
||||
c_file->source_path = path_from_libunwind(parent, unwind_src[i].path);
|
||||
switch (unwind_src[i].kind) {
|
||||
case SrcC:
|
||||
c_file->args.append("-std=c99");
|
||||
break;
|
||||
case SrcCpp:
|
||||
c_file->args.append("-fno-rtti");
|
||||
c_file->args.append("-I");
|
||||
c_file->args.append(path_from_zig_lib(parent, "libcxx", "include"));
|
||||
break;
|
||||
case SrcAsm:
|
||||
break;
|
||||
}
|
||||
c_file->args.append("-I");
|
||||
c_file->args.append(path_from_libunwind(parent, "include"));
|
||||
c_file->args.append("-fPIC");
|
||||
c_file->args.append("-D_LIBUNWIND_DISABLE_VISIBILITY_ANNOTATIONS");
|
||||
if (parent->zig_target->is_native) {
|
||||
c_file->args.append("-D_LIBUNWIND_IS_NATIVE_ONLY");
|
||||
}
|
||||
if (parent->build_mode == BuildModeDebug) {
|
||||
c_file->args.append("-D_DEBUG");
|
||||
} else {
|
||||
c_file->args.append("-NDEBUG");
|
||||
}
|
||||
if (parent->is_single_threaded) {
|
||||
c_file->args.append("-D_LIBUNWIND_HAS_NO_THREADS");
|
||||
}
|
||||
c_source_files.append(c_file);
|
||||
}
|
||||
child_gen->c_source_files = c_source_files;
|
||||
codegen_build_and_link(child_gen);
|
||||
return buf_ptr(&child_gen->output_file_path);
|
||||
}
|
||||
|
||||
static const char *get_libc_crt_file(CodeGen *parent, const char *file) {
|
||||
if (parent->libc == nullptr && target_is_glibc(parent)) {
|
||||
if (strcmp(file, "crti.o") == 0) {
|
||||
|
|
@ -611,6 +683,7 @@ static void construct_linker_job_elf(LinkJob *lj) {
|
|||
lj->args.append("-lgcc_s");
|
||||
lj->args.append("--no-as-needed");
|
||||
} else if (target_is_glibc(g)) {
|
||||
lj->args.append(build_libunwind(g));
|
||||
lj->args.append(get_libc_crt_file(g, "libc.so.6")); // this is our dummy so file
|
||||
lj->args.append(get_libc_crt_file(g, "libc_nonshared.a"));
|
||||
} else {
|
||||
|
|
@ -1192,6 +1265,13 @@ void codegen_link(CodeGen *g) {
|
|||
}
|
||||
ZigLLVM_OSType os_type = get_llvm_os_type(g->zig_target->os);
|
||||
codegen_add_time_event(g, "LLVM Link");
|
||||
if (g->verbose_link) {
|
||||
fprintf(stderr, "ar rcs %s", buf_ptr(&g->output_file_path));
|
||||
for (size_t i = 0; i < g->link_objects.length; i += 1) {
|
||||
fprintf(stderr, " %s", (const char *)buf_ptr(g->link_objects.at(i)));
|
||||
}
|
||||
fprintf(stderr, "\n");
|
||||
}
|
||||
if (ZigLLVMWriteArchive(buf_ptr(&g->output_file_path), file_names.items, file_names.length, os_type)) {
|
||||
fprintf(stderr, "Unable to write archive '%s'\n", buf_ptr(&g->output_file_path));
|
||||
exit(1);
|
||||
|
|
|
|||
Loading…
Reference in New Issue