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GNU/Linux |
CentOS 5.6 |
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dtrace(1) |
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dtrace − Dtrace compatibile user application static probe generation tool.
dtrace −s file [OPTIONS]
The dtrace command converts probe descriptions defined in file.d into a probe header file via the -h option or a probe description file via the -G option.
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−h |
generate a systemtap header file. |
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−G |
generate a systemtap probe definition object file. |
−o file
is the name of the output file. If the −G option is given then the output file will be called file.o; if the -h option is given then the output file will be called file.h.
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−C |
run the cpp preprocessor on the input file when the −h option is given. |
−I file
give this include path to cpp when the −C option is given.
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−k |
keep temporary files, for example the C language source for the −G option. |
−−types
generate probe argument typedef information when the −h option is given.
Systemtap is source compatible with dtrace user application static probe support. Given a file test.d containing:
provider sdt_probes
{
probe test_0 (int type);
probe test_1 (struct astruct node);
};
struct astruct {int a; int b;};
Then the command "dtrace -s test.d -G" will create the probe definition file test.o and the command "dtrace -s test.d -h" will create the probe header file test.h Subsequently the application can define probes using
#include "test.h"
...
struct astruct s;
...
SDT_PROBES_TEST_0(value);
...
SDT_PROBES_TEST_1(s);
The application is linked with "test.o" when it is built.
stap(1) stappaths(7)
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dtrace(1) | |