cosmopolitan/third_party/double-conversion/BUILD.mk
Trung Nguyen 8b33204f37
Add LLVM libcxxabi (#1063)
* third_party: Add libcxxabi

Added libcxxabi from LLVM 17.0.6
The library implements the Itanium C++ exception handling ABI.

* third_party/libcxxabi: Enable __cxa_thread_atexit

Enable `__cxa_thread_atexit` from libcxxabi.
`__cxa_thread_atexit_impl` is still implemented by the cosmo libc.
The original `__cxa_thread_atexit` has been removed.

* third_party/libcxx: Build with exceptions

Build libcxx with exceptions enabled.

- Removed `_LIBCPP_NO_EXCEPTIONS` from `__config`.
- Switched the exception implementation to `libcxxabi`. These two files
are taken from the same `libcxx` version as mentioned in `README.cosmo`.
- Removed `new_handler_fallback` in favor of `libcxxabi` implementation.
- Enable `-fexceptions` and `-frtti` for `libcxx`.
- Removed `THIRD_PARTY_LIBCXX` dependency from `libcxxabi` and
`libunwind`. These libraries do not use any runtime `libcxx` functions,
just headers.

* libc: Remove remaining redundant cxa functions

- `__cxa_pure_virtual` in `libcxxabi` is also a stub similar to the
existing one.
- `__cxa_guard_*` from `libcxxabi` is used instead of the ones from
Android.

Now there should be no more duplicate implementations.
`__cxa_thread_atexit_impl`, `__cxa_atexit`, and related supporting
functions, are still left to other libraries as in `libcxxabi`.

`libcxxabi` is also now added to `cosmopolitan.a` to make up for the
removed functions.

Affected in-tree libraries (`third_party/double-conversion`) have been
updated.
2024-01-08 08:45:10 -08:00

65 lines
2.8 KiB
Makefile

#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
#── vi: set noet ft=make ts=8 sw=8 fenc=utf-8 :vi ────────────────────┘
PKGS += THIRD_PARTY_DOUBLECONVERSION
THIRD_PARTY_DOUBLECONVERSION_ARTIFACTS += THIRD_PARTY_DOUBLECONVERSION_A
THIRD_PARTY_DOUBLECONVERSION = \
$(THIRD_PARTY_DOUBLECONVERSION_A_DEPS) \
$(THIRD_PARTY_DOUBLECONVERSION_A)
THIRD_PARTY_DOUBLECONVERSION_A = \
o/$(MODE)/third_party/double-conversion/libdouble-conversion.a
THIRD_PARTY_DOUBLECONVERSION_A_FILES := $(wildcard third_party/double-conversion/*)
THIRD_PARTY_DOUBLECONVERSION_A_SRCS_C = $(filter %.c,$(THIRD_PARTY_DOUBLECONVERSION_A_FILES))
THIRD_PARTY_DOUBLECONVERSION_A_SRCS_CC = $(filter %.cc,$(THIRD_PARTY_DOUBLECONVERSION_A_FILES))
THIRD_PARTY_DOUBLECONVERSION_A_HDRS = $(filter %.h,$(THIRD_PARTY_DOUBLECONVERSION_A_FILES))
THIRD_PARTY_DOUBLECONVERSION_A_SRCS = \
$(THIRD_PARTY_DOUBLECONVERSION_A_SRCS_C) \
$(THIRD_PARTY_DOUBLECONVERSION_A_SRCS_CC)
THIRD_PARTY_DOUBLECONVERSION_A_OBJS = \
$(THIRD_PARTY_DOUBLECONVERSION_A_SRCS_C:%.c=o/$(MODE)/%.o) \
$(THIRD_PARTY_DOUBLECONVERSION_A_SRCS_CC:%.cc=o/$(MODE)/%.o)
THIRD_PARTY_DOUBLECONVERSION_A_CHECKS = \
$(THIRD_PARTY_DOUBLECONVERSION_A).pkg \
$(THIRD_PARTY_DOUBLECONVERSION_A_HDRS:%=o/$(MODE)/%.okk)
THIRD_PARTY_DOUBLECONVERSION_A_DIRECTDEPS = \
LIBC_INTRIN \
LIBC_STR \
LIBC_TINYMATH \
THIRD_PARTY_LIBCXXABI
THIRD_PARTY_DOUBLECONVERSION_A_DEPS := \
$(call uniq,$(foreach x,$(THIRD_PARTY_DOUBLECONVERSION_A_DIRECTDEPS),$($(x))))
$(THIRD_PARTY_DOUBLECONVERSION_A): \
third_party/double-conversion/ \
$(THIRD_PARTY_DOUBLECONVERSION_A).pkg \
$(THIRD_PARTY_DOUBLECONVERSION_A_OBJS)
$(THIRD_PARTY_DOUBLECONVERSION_A).pkg: \
$(THIRD_PARTY_DOUBLECONVERSION_A_OBJS) \
$(foreach x,$(THIRD_PARTY_DOUBLECONVERSION_A_DIRECTDEPS),$($(x)_A).pkg)
$(THIRD_PARTY_DOUBLECONVERSION_A_OBJS): private \
CXXFLAGS += \
-ffunction-sections \
-fdata-sections
THIRD_PARTY_DOUBLECONVERSION_LIBS = $(foreach x,$(THIRD_PARTY_DOUBLECONVERSION_ARTIFACTS),$($(x)))
THIRD_PARTY_DOUBLECONVERSION_SRCS = $(foreach x,$(THIRD_PARTY_DOUBLECONVERSION_ARTIFACTS),$($(x)_SRCS))
THIRD_PARTY_DOUBLECONVERSION_HDRS = $(foreach x,$(THIRD_PARTY_DOUBLECONVERSION_ARTIFACTS),$($(x)_HDRS))
THIRD_PARTY_DOUBLECONVERSION_CHECKS = $(foreach x,$(THIRD_PARTY_DOUBLECONVERSION_ARTIFACTS),$($(x)_CHECKS))
THIRD_PARTY_DOUBLECONVERSION_OBJS = $(foreach x,$(THIRD_PARTY_DOUBLECONVERSION_ARTIFACTS),$($(x)_OBJS))
$(THIRD_PARTY_DOUBLECONVERSION_A_OBJS): third_party/double-conversion/BUILD.mk
.PHONY: o/$(MODE)/third_party/double-conversion
o/$(MODE)/third_party/double-conversion: \
o/$(MODE)/third_party/double-conversion/test \
$(THIRD_PARTY_DOUBLECONVERSION_CHECKS)