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58 lines
1.5 KiB
58 lines
1.5 KiB
/* |
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* Copyright (c) 2018 Intel Corporation |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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*/ |
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/** |
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* @file |
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* @brief Thread entry |
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* |
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* This file provides the common thread entry function |
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*/ |
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#include <zephyr/kernel.h> |
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#ifdef CONFIG_CURRENT_THREAD_USE_TLS |
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#include <zephyr/random/random.h> |
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Z_THREAD_LOCAL k_tid_t z_tls_current; |
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#endif |
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#ifdef CONFIG_STACK_CANARIES_TLS |
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extern Z_THREAD_LOCAL volatile uintptr_t __stack_chk_guard; |
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#endif /* CONFIG_STACK_CANARIES_TLS */ |
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/* |
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* Common thread entry point function (used by all threads) |
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* |
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* This routine invokes the actual thread entry point function and passes |
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* it three arguments. It also handles graceful termination of the thread |
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* if the entry point function ever returns. |
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* |
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* This routine does not return, and is marked as such so the compiler won't |
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* generate preamble code that is only used by functions that actually return. |
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*/ |
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FUNC_NORETURN void z_thread_entry(k_thread_entry_t entry, |
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void *p1, void *p2, void *p3) |
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{ |
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#ifdef CONFIG_CURRENT_THREAD_USE_TLS |
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z_tls_current = k_sched_current_thread_query(); |
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#endif |
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#ifdef CONFIG_STACK_CANARIES_TLS |
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uintptr_t stack_guard; |
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sys_rand_get((uint8_t *)&stack_guard, sizeof(stack_guard)); |
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__stack_chk_guard = stack_guard; |
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__stack_chk_guard <<= 8; |
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#endif /* CONFIG_STACK_CANARIES */ |
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entry(p1, p2, p3); |
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k_thread_abort(k_current_get()); |
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/* |
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* Compiler can't tell that k_thread_abort() won't return and issues a |
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* warning unless we tell it that control never gets this far. |
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*/ |
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CODE_UNREACHABLE; /* LCOV_EXCL_LINE */ |
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}
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