forked from dolphin-emu/dolphin
96 lines
3.1 KiB
Python
96 lines
3.1 KiB
Python
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#!/usr/bin/python
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# This filter replace all occurences of JIT_PPC_${address} by a
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# corresponding function name JIT_PPC_${symbol} as defined by a .map file.
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# TODO, add an option to append the block address (JIT_PPC_${symbol}@${addr})
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# Example 1: guest function profiling (excluding host callees)
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#
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# $ perf record -t $tid
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# $ perf script | sed 's/.*cycles: *[0-9a-f]* *//' |
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# python Tools/symbolicate-ppc.py ~/.dolphin-emu/Maps/${map}.map |
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# rankor -r | head
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# 10.05% JIT_Loop (/tmp/perf-15936.map)
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# 3.73% [unknown] (/tmp/perf-15936.map)
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# 1.91% VideoBackendHardware::Video_GatherPipeBursted (/opt/dolphin-2015-05-06/bin/dolphin-emu)
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# 1.39% JIT_PPC_PSMTXConcat (/tmp/perf-15936.map)
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# 1.00% JIT_PPC_zz_051754c_ (/tmp/perf-15936.map)
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# 0.90% JIT_PPC_zz_051751c_ (/tmp/perf-15936.map)
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# 0.71% JIT_PPC_zz_04339d4_ (/tmp/perf-15936.map)
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# 0.59% JIT_PPC_zz_05173e0_ (/tmp/perf-15936.map)
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# 0.57% JIT_PPC_zz_044141c_ (/tmp/perf-15936.map)
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# 0.54% JIT_PPC_zz_01839cc_ (/tmp/perf-15936.map)
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# Example 2: guest function profiling (including host callees)
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#
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# $ perf record --call-graph dwarf -t $tid
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# $ perf script | stackcollapse-perf.pl | sed 's/^CPU;//' |
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# python Tools/symbolicate-ppc.py ~/.dolphin-emu/Maps/${map}.map |
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# perl -pe 's/^([^; ]*).*? ([0-9]+?)$/\1 \2/' | stackcollapse-recursive.pl |
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# awk '{printf "%s %s\n", $2, $1}' | sort -rn | head
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# 5811 JIT_Loop
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# 2396 [unknown]
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# 577 JIT_PPC_PSMTXConcat
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# 464 JIT_PPC___restore_gpr
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# 396 JIT_PPC_zz_0517514_
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# 313 JIT_PPC_zz_04339d4_
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# 290 JIT_PPC_zz_05173e0_
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# 285 JIT_PPC_zz_01839cc_
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# 277 JIT_PPC_zz_04335ac_
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# 269 JIT_PPC_zz_0420b58_
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import re
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import sys
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stdin = sys.stdin
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stdout = sys.stdout
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class Symbol:
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def __init__(self, start, size, name):
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self.start = start
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self.end = start + size
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self.name = name
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# Read a .map file: this is a line-oriented file containing mapping from
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# the (PowerPC) memory addresses to function names.
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# The format is: "%08x %08x %08x %i %s" (address, size, address, 0, name).
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# They should be already be sorted.
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def read_map(filename):
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reg = re.compile("^([0-9a-f]{8}) ([0-9a-f]{8}) ([0-9a-f]{8}) ([0-9]*) (.*)$")
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res = []
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with open(filename, "r") as f:
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for line in f:
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match = reg.match(line)
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if match:
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start = int(match.group(1), 16)
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size = int(match.group(2), 16)
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name = match.group(5)
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res.append(Symbol(start, size, name))
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return res
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map = read_map(sys.argv[1])
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# Do a binary each in the map file in order to find the symbol:
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def lookup(address):
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i = 0
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j = len(map)
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while(True):
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if (j < i):
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return "JIT_PPC_[unknown]"
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k = round((j + i) // 2)
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if (address < map[k].start):
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j = k - 1
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elif (address >= map[k].end):
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i = k + 1
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else:
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return "JIT_PPC_" + map[k].name
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# Function used to replace given match:
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def replace(match):
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return lookup(int(match.group(1), 16))
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# Process stdin and write to stdout:
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for line in stdin:
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modline = re.sub('JIT_PPC_([0-9a-f]*)', replace, line)
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stdout.write(modline)
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