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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/arm/cpu_asm.S | |
| 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 'cpukit/score/cpu/arm/cpu_asm.S')
| -rw-r--r-- | cpukit/score/cpu/arm/cpu_asm.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/cpukit/score/cpu/arm/cpu_asm.S b/cpukit/score/cpu/arm/cpu_asm.S index 7fb4062d50..1771ddd661 100644 --- a/cpukit/score/cpu/arm/cpu_asm.S +++ b/cpukit/score/cpu/arm/cpu_asm.S @@ -62,12 +62,22 @@ DEFINE_FUNCTION_ARM(_CPU_Context_switch) vstm r3, {d8-d15} #endif +#ifdef ARM_MULTILIB_HAS_THREAD_ID_REGISTER + mrc p15, 0, r3, c13, c0, 3 + str r3, [r0, #ARM_CONTEXT_CONTROL_THREAD_ID_OFFSET] +#endif + /* Start restoring context */ _restore: #ifdef ARM_MULTILIB_HAS_LOAD_STORE_EXCLUSIVE clrex #endif +#ifdef ARM_MULTILIB_HAS_THREAD_ID_REGISTER + ldr r3, [r1, #ARM_CONTEXT_CONTROL_THREAD_ID_OFFSET] + mcr p15, 0, r3, c13, c0, 3 +#endif + #ifdef ARM_MULTILIB_VFP_D32 add r3, r1, #ARM_CONTEXT_CONTROL_D8_OFFSET vldm r3, {d8-d15} |