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Make some fixes for libcxx

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This change figures out some of the build configuration issues we've
been having with libcxx. The c++ span header is added. Per a Discord
discussion we're now turning off `-g` for the default build mode, so
consider using `make MODE=dbg` or `make MODE=zero` for GDB debugging
which works much better than `MODE=` ever has. Note that the default
build mode has always had very good function call / system call logs
plus you can still use ShowCrashReports() for backtrace. Making this
change ensures cosmocc will better conform to FOSS norms. Lastly the
LoadZipArgs() API has been added to cosmopolitan.a and <cosmo.h>.
This commit is contained in:
Justine Tunney 2023-07-07 19:25:13 -07:00
parent 3a8579252d
commit a092fda388
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18 changed files with 636 additions and 29 deletions
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8
third_party/libcxx/__config vendored
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@ -17,6 +17,7 @@
#define _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS
#define _LIBCPP_HAS_TRIVIAL_MUTEX_DESTRUCTION
#define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE
#define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR
#if defined(_MSC_VER) && !defined(__clang__)
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
@ -268,7 +269,7 @@
#endif
#if !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN)
#include "libc/isystem/endian.h"
#include "libc/sysv/consts/endian.h"
# if __BYTE_ORDER == __LITTLE_ENDIAN
# define _LIBCPP_LITTLE_ENDIAN
# elif __BYTE_ORDER == __BIG_ENDIAN
@ -662,10 +663,13 @@ typedef __char32_t char32_t;
#if __has_attribute(exclude_from_explicit_instantiation)
# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION __attribute__ ((__exclude_from_explicit_instantiation__))
#else
// TODO(jart): Why is this so horrible broken with GCC?
// Many definitions end up with always_inline but not inline.
//
// Try to approximate the effect of exclude_from_explicit_instantiation
// (which is that entities are not assumed to be provided by explicit
// template instantiations in the dylib) by always inlining those entities.
# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION _LIBCPP_ALWAYS_INLINE
# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION // _LIBCPP_ALWAYS_INLINE
#endif
#ifndef _LIBCPP_HIDE_FROM_ABI_PER_TU