71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
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/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2022-09-30 RT-Thread the general porting API for lwp
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* 2023-07-18 Shell New signal arch API arch_thread_signal_enter
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*/
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#ifndef __LWP_ARCH_COMM__
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#define __LWP_ARCH_COMM__
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#include <mm_aspace.h>
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#include <rtthread.h>
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#include <mmu.h>
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/**
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* APIs that must port to all architectures
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*/
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/* syscall handlers */
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void arch_clone_exit(void);
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void arch_fork_exit(void);
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void arch_syscall_exit(void);
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void arch_ret_to_user(void);
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/* ELF relocation */
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#ifdef ARCH_MM_MMU
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struct rt_lwp;
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void arch_elf_reloc(rt_aspace_t aspace, void *text_start, void *rel_dyn_start, size_t rel_dyn_size, void *got_start, size_t got_size, void *dynsym);
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#else
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void arch_elf_reloc(void *text_start, void *rel_dyn_start, size_t rel_dyn_size, void *got_start, size_t got_size, void *dynsym);
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#endif
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/* User entry. enter user program code for the first time */
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void arch_crt_start_umode(void *args, const void *text, void *ustack, void *user_stack);
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void arch_start_umode(void *args, const void *text, void *ustack, void *k_stack);
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/* lwp create and setup */
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int arch_set_thread_context(void (*exit)(void), void *new_thread_stack,
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void *user_stack, void **thread_sp);
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void *arch_get_user_sp(void);
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/* user space setup and control */
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int arch_user_space_init(struct rt_lwp *lwp);
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void arch_user_space_free(struct rt_lwp *lwp);
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void *arch_kernel_mmu_table_get(void);
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void arch_kuser_init(rt_aspace_t aspace, void *vectors);
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int arch_expand_user_stack(void *addr);
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/* thread id register */
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void arch_set_thread_area(void *p);
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void* arch_get_tidr(void);
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void arch_set_tidr(void *p);
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/** entry point of architecture signal handling */
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rt_noreturn void arch_thread_signal_enter(int signo, siginfo_t *psiginfo,
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void *exp_frame, void *entry_uaddr,
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lwp_sigset_t *save_sig_mask);
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void arch_signal_check_erestart(void *eframe, void *ksp);
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void arch_syscall_set_errno(void *eframe, int expected, int code);
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int arch_backtrace_uthread(rt_thread_t thread);
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#endif /* __LWP_ARCH_COMM__ */
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