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scripts/checkstack.pl: fix no space expression between sp and offset
When I use older version aarch64 objdump (2.24) to disassemble aarch64 vmlinux, I get the result like below. There is no space between sp and offset. ffff800008010000 <dw_apb_ictl_handle_irq>: ffff800008010000: d503233f hint #0x19 ffff800008010004: a9bc7bfd stp x29, x30, [sp,#-64]! ffff800008010008: 90011e60 adrp x0, ffff80000a3dc000 <num_ictlrs> ffff80000801000c: 910003fd mov x29, sp ffff800008010010: a9025bf5 stp x21, x22, [sp,#32] When I use newer version aarch64 objdump (2.35), I get the result like below. There is a space between sp and offset. ffff800008010000 <dw_apb_ictl_handle_irq>: ffff800008010000: d503233f paciasp ffff800008010004: a9bc7bfd stp x29, x30, [sp, #-64]! ffff800008010008: 90011e60 adrp x0, ffff80000a3dc000 <num_ictlrs> ffff80000801000c: 910003fd mov x29, sp ffff800008010010: a9025bf5 stp x21, x22, [sp, #32] Add no space support of regular expression for old version objdump. Link: https://lkml.kernel.org/r/20231220073629.2658-1-Kuan-Ying.Lee@mediatek.com Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com> Cc: Casper Li <casper.li@mediatek.com> Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Cc: Chinwen Chang <chinwen.chang@mediatek.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Qun-Wei Lin <qun-wei.lin@mediatek.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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