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LibC/DynamicLoader: Add support for dynamically loaded TLS

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Previously I failed to dlopen if any of the objects contained TLS
section
This commit is contained in:
Bananymous
2026-03-17 20:01:51 +02:00
parent 05b2424fca
commit 1d07d8e08e
5 changed files with 193 additions and 70 deletions
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6
userspace/libraries/LibC/unistd.cpp
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@@ -84,21 +84,23 @@ extern "C" void _init_libc(char** environ, init_funcs_t init_funcs, init_funcs_t
}
else
{
alignas(uthread) static uint8_t storage[sizeof(uthread) + sizeof(uintptr_t)];
alignas(uthread) static uint8_t storage[sizeof(uthread)];
uthread& uthread = *reinterpret_cast<struct uthread*>(storage);
uthread = {
.self = &uthread,
.master_tls_addr = nullptr,
.master_tls_size = 0,
.master_tls_module_count = 1,
.dynamic_tls = nullptr,
.cleanup_stack = nullptr,
.id = static_cast<pthread_t>(syscall(SYS_PTHREAD_SELF)),
.errno_ = 0,
.cancel_type = PTHREAD_CANCEL_DEFERRED,
.cancel_state = PTHREAD_CANCEL_ENABLE,
.canceled = false,
.dtv = { 0 },
};
uthread.dtv[0] = 0;
#if defined(__x86_64__)
syscall(SYS_SET_FSBASE, &uthread);