hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
32 lines
1.1 KiB
Lua
Executable File
32 lines
1.1 KiB
Lua
Executable File
#!/usr/bin/env bcc-lua
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--[[
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Copyright 2016 GitHub, Inc
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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]]
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local ffi = require("ffi")
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return function(BPF)
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local b = BPF:new{src_file="bashreadline.c", debug=0}
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b:attach_uprobe{name="/bin/bash", sym="readline", fn_name="printret", retprobe=true}
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local function print_readline(cpu, event)
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print("%-9s %-6d %s" % {os.date("%H:%M:%S"), tonumber(event.pid), ffi.string(event.str)})
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end
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b:get_table("events"):open_perf_buffer(print_readline, "struct { uint64_t pid; char str[80]; }", nil)
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print("%-9s %-6s %s" % {"TIME", "PID", "COMMAND"})
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b:perf_buffer_poll_loop()
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end
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