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| author |   Behan Webster <behanw@converseincode.com> | 2014-08-27 05:29:32 +0100 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2014-09-08 14:39:19 +0100 |
| commit | 2128df143d840a20e12818290eb6e40b95cc4ac0 (patch) | |
| tree | a77a57b12cb6ead88811e9125621c34114945a4d | |
| parent | arm64: LLVMLinux: Calculate current_thread_info from current_stack_pointer (diff) | |
| download | linux-dev-2128df143d840a20e12818290eb6e40b95cc4ac0.tar.xz linux-dev-2128df143d840a20e12818290eb6e40b95cc4ac0.zip | |
arm64: LLVMLinux: Use current_stack_pointer in kernel/traps.c
Use the global current_stack_pointer to get the value of the stack pointer.
This change supports being able to compile the kernel with both gcc and clang.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Olof Johansson <olof@lixom.net>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
| -rw-r--r-- | arch/arm64/kernel/traps.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 02cd3f023e9a..de1b085e7963 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -132,7 +132,6 @@ static void dump_instr(const char *lvl, struct pt_regs *regs) static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) { struct stackframe frame; - const register unsigned long current_sp asm ("sp"); pr_debug("%s(regs = %p tsk = %p)\n", __func__, regs, tsk); @@ -145,7 +144,7 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) frame.pc = regs->pc; } else if (tsk == current) { frame.fp = (unsigned long)__builtin_frame_address(0); - frame.sp = current_sp; + frame.sp = current_stack_pointer; frame.pc = (unsigned long)dump_backtrace; } else { /* |