gprofto suppress the printing of statically declared (private) functions. (These are functions whose names are not listed as global, and which are not visible outside the file/function/block where they were defined.) Time spent in these functions, calls to/from them, etc., will all be attributed to the function that was loaded directly before it in the executable file. This option affects both the flat profile and the call graph.
gprofto ignore symbols which are not known to be functions. This option will give more accurate profile data on systems where it is supported (Solaris and HPUX for example).
gcccompiler. Newer versions of
gccare designed to work with the
If the program was compiled with basic-block counting enabled,
this option will also identify how many times each line of
code was executed.
While line-by-line profiling can help isolate where in a large function
a program is spending its time, it also significantly increases
the running time of
gprof, and magnifies statistical
See Statistical Sampling Error.
gprof, in its call graph analysis, to only propagate times for symbols matching symspec.
gprof, in its call graph analysis, not to propagate times for symbols matching symspec.
gprofto read an external symbol table file, such as /proc/kallsyms, rather than read the symbol table from the given object file (the default is
a.out). This is useful for profiling kernel modules.
gprofwill mention all functions in the flat profile, even those that were never called, and that had no time spent in them. This is useful in conjunction with the `-c' option for discovering which routines were never called.