mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-06-01 02:02:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Add special errno handling to libcxx

Browse source
This commit is contained in:
Justine Tunney 2024-07-25 01:05:39 -07:00
parent 0f486a13c8
commit 2c4b88753b
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
10 changed files with 235 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

23
third_party/libcxx/system_error.cpp vendored
View file

@ -23,6 +23,10 @@
# include <android/api-level.h>
#endif
#ifdef __COSMOPOLITAN__
#include <fs/error.h>
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
namespace {
@ -35,6 +39,9 @@ string do_strerror_r(int ev);
# if defined(_LIBCPP_MSVCRT_LIKE)
string do_strerror_r(int ev) {
#ifdef __COSMOPOLITAN__
ev = (int)filesystem::detail::__cosmo_errc_to_err(ev);
#endif
char buffer[strerror_buff_size];
if (::strerror_s(buffer, strerror_buff_size, ev) == 0)
return string(buffer);
@ -81,6 +88,9 @@ string do_strerror_r(int ev) {
// Preserve errno around the call. (The C++ standard requires that
// system_error functions not modify errno).
const int old_errno = errno;
#ifdef __COSMOPOLITAN__
ev = filesystem::detail::__cosmo_errc_to_err((errc)ev);
#endif
const char* error_message = handle_strerror_r_return(::strerror_r(ev, buffer, strerror_buff_size), buffer);
// If we didn't get any message, print one now.
if (!error_message[0]) {
@ -129,6 +139,9 @@ public:
const char* __generic_error_category::name() const noexcept { return "generic"; }
string __generic_error_category::message(int ev) const {
#ifdef __COSMOPOLITAN__
ev = filesystem::detail::__cosmo_errc_to_err((errc)ev);
#endif
#ifdef _LIBCPP_ELAST
if (ev > _LIBCPP_ELAST)
return string("unspecified generic_category error");
@ -156,6 +169,9 @@ public:
const char* __system_error_category::name() const noexcept { return "system"; }
string __system_error_category::message(int ev) const {
#ifdef __COSMOPOLITAN__
ev = filesystem::detail::__cosmo_errc_to_err((errc)ev);
#endif
#ifdef _LIBCPP_ELAST
if (ev > _LIBCPP_ELAST)
return string("unspecified system_category error");
@ -164,6 +180,9 @@ string __system_error_category::message(int ev) const {
}
error_condition __system_error_category::default_error_condition(int ev) const noexcept {
#ifdef __COSMOPOLITAN__
ev = filesystem::detail::__cosmo_errc_to_err((errc)ev);
#endif
#ifdef _LIBCPP_ELAST
if (ev > _LIBCPP_ELAST)
return error_condition(ev, system_category());
@ -212,7 +231,11 @@ system_error::~system_error() noexcept {}
void __throw_system_error(int ev, const char* what_arg) {
#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
#ifdef __COSMOPOLITAN__
std::__throw_system_error(error_code((int)filesystem::detail::__cosmo_err_to_errc(ev), system_category()), what_arg);
#else
std::__throw_system_error(error_code(ev, system_category()), what_arg);
#endif
#else
// The above could also handle the no-exception case, but for size, avoid referencing system_category() unnecessarily.
_LIBCPP_VERBOSE_ABORT(