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| author | Maxim Kuvyrkov <maxim@codesourcery.com> | 2009-12-07 00:24:27 -0800 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2010-02-27 18:31:19 +0100 |
| commit | 9674cdc74d63f346870943ef966a034f8c71ee57 (patch) | |
| tree | c590640335983c5b1a7f5c9589478bf90fb68d03 /arch/m68k/include | |
| parent | f54bcdc2b81558a2b7e624cfeb4992422d9265f9 (diff) | |
| download | kernel_samsung_smdk4412-9674cdc74d63f346870943ef966a034f8c71ee57.zip kernel_samsung_smdk4412-9674cdc74d63f346870943ef966a034f8c71ee57.tar.gz kernel_samsung_smdk4412-9674cdc74d63f346870943ef966a034f8c71ee57.tar.bz2 | |
m68k: Add NPTL support
This patch adds several syscalls, that provide necessary
functionality to support NPTL on m68k/ColdFire.
The syscalls are get_thread_area, set_thread_area, atomic_cmpxchg_32 and
atomic_barrier.
The cmpxchg syscall is required for ColdFire as it doesn't support 'cas'
instruction.
Also a ptrace call PTRACE_GET_THREAD_AREA is added to allow debugger to
inspect the TLS storage.
Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/include')
| -rw-r--r-- | arch/m68k/include/asm/ptrace.h | 2 | ||||
| -rw-r--r-- | arch/m68k/include/asm/thread_info_mm.h | 1 | ||||
| -rw-r--r-- | arch/m68k/include/asm/unistd.h | 6 |
3 files changed, 8 insertions, 1 deletions
diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h index ee4011c..21605c7 100644 --- a/arch/m68k/include/asm/ptrace.h +++ b/arch/m68k/include/asm/ptrace.h @@ -71,6 +71,8 @@ struct switch_stack { #define PTRACE_GETFPREGS 14 #define PTRACE_SETFPREGS 15 +#define PTRACE_GET_THREAD_AREA 25 + #define PTRACE_SINGLEBLOCK 33 /* resume execution until next branch */ #ifdef __KERNEL__ diff --git a/arch/m68k/include/asm/thread_info_mm.h b/arch/m68k/include/asm/thread_info_mm.h index 167e518..67266c6 100644 --- a/arch/m68k/include/asm/thread_info_mm.h +++ b/arch/m68k/include/asm/thread_info_mm.h @@ -16,6 +16,7 @@ struct thread_info { struct exec_domain *exec_domain; /* execution domain */ int preempt_count; /* 0 => preemptable, <0 => BUG */ __u32 cpu; /* should always be 0 on m68k */ + unsigned long tp_value; /* thread pointer */ struct restart_block restart_block; }; #endif /* __ASSEMBLY__ */ diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h index 48b87f5..d72a71d 100644 --- a/arch/m68k/include/asm/unistd.h +++ b/arch/m68k/include/asm/unistd.h @@ -336,10 +336,14 @@ #define __NR_pwritev 330 #define __NR_rt_tgsigqueueinfo 331 #define __NR_perf_event_open 332 +#define __NR_get_thread_area 333 +#define __NR_set_thread_area 334 +#define __NR_atomic_cmpxchg_32 335 +#define __NR_atomic_barrier 336 #ifdef __KERNEL__ -#define NR_syscalls 333 +#define NR_syscalls 337 #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR |