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LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
pfm_strerror - return constant string describing error code
#include <perfmon/pfmlib.h> const char *pfm_strerror(int code);
This function returns a string which describes the libpfm error value in code. The string returned by the call is read-only. The function must only be used with libpfm calls documented to return specific error codes. The value -1 is not considered a specific error code. Strings and pfm_pmu_t return values cannot be used with this function. Typically NULL is returned in case of error for string values, and PFM_PMU_NONE is returned for pfm_pmu_t values. The function is also not designed to handle OS system call errors, i.e., errno values.
The function returns a pointer to the constant string describing the error code. The string is in English. If code is invalid then a default error message is returned.
If the error code is invalid, then the function returns a pointer to a string which says "unknown error code".
Stephane Eranian <[email protected]>
This page is part of the perfmon2 (a performance monitoring
library) project. Information about the project can be found at
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[email protected]. This page was obtained
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⟨git://git.code.sf.net/p/perfmon2/libpfm4 perfmon2-libpfm4⟩ on
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September, 2009 LIBPFM(3)