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author | 2016-09-16 17:23:26 -0700 | |
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committer | 2016-09-30 14:48:22 -0700 | |
commit | 5a205a32ffccf6e720a2d2b3aee44b16619016a6 (patch) | |
tree | 9ff1460c48ecbcc382405826ff53c5329bd5a9dd /tools/perf/scripts/python/export-to-postgresql.py | |
parent | ARC: entry: make ret_from_system_call local label (diff) | |
download | wireguard-linux-5a205a32ffccf6e720a2d2b3aee44b16619016a6.tar.xz wireguard-linux-5a205a32ffccf6e720a2d2b3aee44b16619016a6.zip |
ARC: dw2 unwind: add infrastructure for adding cfi pseudo ops to asm
1. detect whether binutils supports the cfi pseudo ops
2. define conditional macros to generate the ops
3. define new ENTRY_CFI/END_CFI to annotate hand asm code.
- Needed because we don't want to emit dwarf info in general ENTRY/END
used by lowest level trap/exception/interrutp handlers as unwinder
gets confused trying to unwind out of them. We want unwinder to
instead stop when it hits onfo those routines
- These provide minimal start/end cfi ops assuming routine doesn't
touch stack memory/regs
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
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