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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-01-28 12:10:08 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-02-04 10:06:35 +0100 |
| commit | 022851aba54d32831feaff13deb3d9943e130eee (patch) | |
| tree | c1d6a8404dae393bd147790f6a9cf09c2f327b5a /cpukit/score/cpu/m68k/cpu.c | |
| parent | bsps: Thread-local storage (TLS) for linkcmds (diff) | |
| download | rtems-022851aba54d32831feaff13deb3d9943e130eee.tar.bz2 | |
Add thread-local storage (TLS) support
Tested and implemented on ARM, m68k, PowerPC and SPARC. Other
architectures need more work.
Diffstat (limited to '')
| -rw-r--r-- | cpukit/score/cpu/m68k/cpu.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/cpukit/score/cpu/m68k/cpu.c b/cpukit/score/cpu/m68k/cpu.c index 3776345769..589d099f9d 100644 --- a/cpukit/score/cpu/m68k/cpu.c +++ b/cpukit/score/cpu/m68k/cpu.c @@ -19,6 +19,7 @@ #include <rtems/system.h> #include <rtems/score/isr.h> +#include <rtems/score/tls.h> #if defined( __mcoldfire__ ) && ( M68K_HAS_FPU == 1 ) uint32_t _CPU_cacr_shadow; @@ -181,3 +182,29 @@ void _CPU_Context_restore_fp (Context_Control_fp **fp_context_ptr) _fpCCR = *fp; } #endif + +void _CPU_Context_Initialize( + Context_Control *the_context, + void *stack_area_begin, + size_t stack_area_size, + uint32_t new_level, + void (*entry_point)( void ), + bool is_fp, + void *tls_area +) +{ + uint32_t stack; + + the_context->sr = 0x3000 | (new_level << 8); + stack = (uint32_t)stack_area_begin + stack_area_size - 4; + the_context->a7_msp = (void *)stack; + *(void **)stack = (void *)entry_point; + +#if (defined(__mcoldfire__) && ( M68K_HAS_FPU == 1 )) + the_context->fpu_dis = is_fp ? 0x00 : 0x10; +#endif + + if ( tls_area != NULL ) { + _TLS_TCB_before_tls_block_initialize( tls_area ); + } +} |