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LibC: Cleanup pthread code and add some pthread_attr functions

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errno, pthread cleanup and pthread id are now stored in uthread. This
allows using these without TLS
This commit is contained in:
Bananymous
2025-05-31 23:34:26 +03:00
parent 423386a052
commit c957f1ddca
17 changed files with 368 additions and 146 deletions
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11
userspace/libraries/LibC/unistd.cpp
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@@ -34,7 +34,13 @@ extern "C" void _init_libc(char** environ, init_funcs_t init_funcs, init_funcs_t
if (::environ == nullptr)
::environ = environ;
if (syscall(SYS_GET_TLS) == 0)
if (uthread* self = reinterpret_cast<uthread*>(syscall(SYS_GET_TLS)))
{
self->cleanup_stack = nullptr;
self->id = syscall(SYS_PTHREAD_SELF);
self->errno_ = 0;
}
else
{
alignas(uthread) static uint8_t storage[sizeof(uthread) + sizeof(uintptr_t)];
@@ -43,6 +49,9 @@ extern "C" void _init_libc(char** environ, init_funcs_t init_funcs, init_funcs_t
.self = &uthread,
.master_tls_addr = nullptr,
.master_tls_size = 0,
.cleanup_stack = nullptr,
.id = static_cast<pthread_t>(syscall(SYS_PTHREAD_SELF)),
.errno_ = 0,
};
uthread.dtv[0] = 0;