Author: Remi Meier <[email protected]>
Branch: stmgc-c8
Changeset: r83582:075e0be3c2d2
Date: 2016-04-08 10:55 +0300
http://bitbucket.org/pypy/pypy/changeset/075e0be3c2d2/
Log: make perf map work for "perf top"
diff --git a/rpython/jit/backend/x86/perf_map.py
b/rpython/jit/backend/x86/perf_map.py
--- a/rpython/jit/backend/x86/perf_map.py
+++ b/rpython/jit/backend/x86/perf_map.py
@@ -24,6 +24,7 @@
fprintf(pypy_perf_map_file, "%lx %lx %s\n", start_addr,
end_addr - start_addr, name);
+ fflush(pypy_perf_map_file);
}
"""])
diff --git a/rpython/tool/perf-disassemble.sh b/rpython/tool/perf-disassemble.sh
new file mode 100755
--- /dev/null
+++ b/rpython/tool/perf-disassemble.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+#
+# Using this script instead of objdump enables perf to disassemble
+# and annotate any JIT code (given a symbol file).
+#
+# To run perf without root:
+# kernel.perf_event_paranoid = -1
+# To trace a process without root:
+# kernel.yama.ptrace_scope = 0
+#
+# Example usage:
+# $ dolphin-emu -P /tmp -b -e $game
+# $ perf top -p $(pidof dolphin-emu) --objdump ./Tools/perf-disassemble.sh
+
+flavor=att
+raw=r
+src=
+
+
+[[ "${@: -1}" != /tmp/perf-*.map ]] && { objdump "$@"; exit; }
+
+pid=0
+start=0
+stop=0
+
+for a in "$@"; do
+ case "$a" in
+ /tmp/perf-*.map)
+ pid="${a#/tmp/perf-}"
+ pid="${pid%.map}"
+ shift
+ ;;
+ -M | --no-show-raw | -S | -C | -l | -d)
+ shift
+ ;;
+ --start-address=*)
+ start="${a##--start-address=}"
+ shift
+ ;;
+ --stop-address=*)
+ stop="${a##--stop-address=}"
+ shift
+ ;;
+ -*)
+ echo "Unknown parameter '$1'" >&2
+ exit 1
+ ;;
+ esac
+done
+gdb -q -p $pid -ex "set disassembly $flavor" -ex "disas /$raw$src
$start,$stop" -ex q -batch
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