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arm64/stacktrace: Export save_stack_trace_regs()

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The ARM64 implements the save_stack_trace_regs function, but it is
unusable for any diagnostic tooling compiled as a kernel module due
the missing EXPORT_SYMBOL_GPL for the function.  Export
save_stack_trace_regs() to align with other architectures such as
s390, openrisc, and powerpc. This is similar to the ARM64 export of
save_stack_trace_tsk() added in git commit e27c7fa015.

Signed-off-by: William Cohen <wcohen@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
William Cohen 2019-03-01 15:00:41 -05:00 committed by Catalin Marinas
parent 3dbcea54b3
commit c82fd1e6bd
1 changed files with 1 additions and 0 deletions
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arch/arm64/kernel/stacktrace.c
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@ -143,6 +143,7 @@ void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace)
if (trace->nr_entries < trace->max_entries)
trace->entries[trace->nr_entries++] = ULONG_MAX;
}
EXPORT_SYMBOL_GPL(save_stack_trace_regs);
static noinline void __save_stack_trace(struct task_struct *tsk,
struct stack_trace *trace, unsigned int nosched)