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https://github.com/RT-Thread/rt-thread.git
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721dfbfe01
- Implemented vDSO functionality for the RISC-V architecture, including the necessary source files and linker scripts. - Introduced a new `vdso_sys.c` file for RISC-V, containing functions to handle time retrieval using the vDSO mechanism. - Created architecture-specific linker scripts (`vdso.lds.S`) for both AArch64 and RISC-V. - Updated the build system to support vDSO compilation for RISC-V, including necessary adjustments in `SConstruct` files. - Refactored existing vDSO code to improve compatibility and maintainability across architectures. - Adjusted the maximum number of PTY devices in the terminal configuration from 64 to 32 for better resource management. - Fixed minor issues in existing code, including correcting the path for the vDSO shared library and ensuring proper function definitions.
39 lines
736 B
C
39 lines
736 B
C
/*
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* Copyright (c) 2006-2024 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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* 2024-07-04 rcitach init ver.
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*/
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#ifndef __ASM_VDSO_H
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#define __ASM_VDSO_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define __VVAR_PAGES 2
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#define VDSO_PAGE_SHIFT 12
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#define VDSO_PAGE_SIZE (1 << VDSO_PAGE_SHIFT)
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#define BIT_MASK(nr) ((1) << (nr))
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#ifndef read_barrier_depends
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#define read_barrier_depends() do { } while (0)
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#endif
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#ifndef smp_read_barrier_depends
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#define smp_read_barrier_depends() read_barrier_depends()
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#endif
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#define VDSO_PATH "../user/build/libvdso.so"
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASM_VDSO_H */
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