diff options
Diffstat (limited to 'cpukit/score/cpu/no_cpu/include')
-rw-r--r-- | cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h | 3 | ||||
-rw-r--r-- | cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h | 36 |
2 files changed, 37 insertions, 2 deletions
diff --git a/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h b/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h index 962fc486fc..9ef6f43eb9 100644 --- a/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h +++ b/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h @@ -554,7 +554,8 @@ extern Context_Control_fp _CPU_Null_fp_context; * @addtogroup RTEMSScoreCPUExampleContext * * Should be large enough to run all RTEMS tests. This ensures - * that a "reasonable" small application should not have any problems. + * that a "reasonable" small application should not have any problems. The + * size shall be a power of two. * * Port Specific Information: * diff --git a/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h index d5082383e8..61f1ab7ba5 100644 --- a/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h +++ b/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h @@ -7,7 +7,7 @@ */ /* - * Copyright (c) 2013, 2016 embedded brains GmbH + * Copyright (C) 2013, 2016 embedded brains GmbH & Co. KG * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -54,6 +54,24 @@ */ #define CPU_PER_CPU_CONTROL_SIZE 0 +/** + * @brief Defines the thread-local storage (TLS) variant. + * + * Use one of the following values: + * + * 10: The architecture uses Variant I and the TLS offsets emitted by the + * linker neglect the TCB (examples: nios2, m68k, microblaze, powerpc, + * riscv). The thread pointer directly references the thread-local data + * area. + * + * 11: The architecture uses Variant I and the TLS offsets emitted by the + * linker take the TCB into account (examples: arm, aarch64). + * The thread pointer references the TCB. + * + * 20: The architecture uses Variant II (examples: i386, sparc). + */ +#define CPU_THREAD_LOCAL_STORAGE_VARIANT 10 + #ifndef ASM #ifdef __cplusplus @@ -183,6 +201,22 @@ static inline void _CPU_Use_thread_local_storage( (void) context; } +/** + * @brief Gets the thread pointer of the context. + * + * The thread pointer is used to get the address of thread-local storage + * objects associated with a thread. + * + * @param context is the processor context containing the thread pointer. + */ +static inline void *_CPU_Get_TLS_thread_pointer( + const Context_Control *context +) +{ + (void) context; + return NULL; +} + #ifdef __cplusplus } #endif |