3237f28188
Newest libunwind does support ARM64, and perf is able to utilize it also. This patch enables the perf test dwarf unwind for arm64. Test result: # ./perf test unwind 25: Test dwarf unwind : Ok Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Link: http://lkml.kernel.org/r/1427461681-72971-1-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
46 lines
694 B
ArmAsm
46 lines
694 B
ArmAsm
#include <linux/linkage.h>
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.text
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.type perf_regs_load,%function
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#define STR_REG(r) str x##r, [x0, 8 * r]
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#define LDR_REG(r) ldr x##r, [x0, 8 * r]
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#define SP (8 * 31)
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#define PC (8 * 32)
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ENTRY(perf_regs_load)
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STR_REG(0)
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STR_REG(1)
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STR_REG(2)
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STR_REG(3)
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STR_REG(4)
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STR_REG(5)
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STR_REG(6)
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STR_REG(7)
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STR_REG(8)
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STR_REG(9)
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STR_REG(10)
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STR_REG(11)
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STR_REG(12)
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STR_REG(13)
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STR_REG(14)
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STR_REG(15)
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STR_REG(16)
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STR_REG(17)
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STR_REG(18)
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STR_REG(19)
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STR_REG(20)
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STR_REG(21)
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STR_REG(22)
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STR_REG(23)
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STR_REG(24)
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STR_REG(25)
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STR_REG(26)
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STR_REG(27)
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STR_REG(28)
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STR_REG(29)
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STR_REG(30)
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mov x1, sp
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str x1, [x0, #SP]
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str x30, [x0, #PC]
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LDR_REG(1)
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ret
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ENDPROC(perf_regs_load)
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