The documentation for GNU gprof 2.16.1, eg. the info page "5.4 The Annotated
Source Listing", gives an example of annotated C source with line-by-line
execution information from basic block counting. From the documentation it is
unclear whether this should work with compilers for other languages, eg. g77,
g95.
If I compile, execute and profile a Fortran program, test.f90 using
g95 -g -pg test.f90
./a.out
gprof -l -A ./a.out
it reports that only the first line of each function has executed.
For example,
29328 -> function ranorm()
real rand
a=0.
do 999 ii=1,16
call random_number(rand)
999 a=rand+a
a = a-8.0
a = a*0.866
ranorm=a
call random_number(rand)
a=rand
return
end
Using
gprof -l -A -x ./a.out
reports that each line of a function has the executions the same number of
times, regardless of loops.
For example,
29328 -> function ranorm()
real rand
29328 -> a=0.
29328 -> do 999 ii=1,16
29328 -> call random_number(rand)
29328 -> 999 a=rand+a
29328 -> a = a-8.0
29328 -> a = a*0.866
29328 -> ranorm=a
29328 -> call random_number(rand)
29328 -> a=rand
return
end
The version of g95 used in these examples is
gcc version 4.0.3 (g95!) May 2 2006
I can post other examples if necessary.
--
Summary: Should gprof -l -A work with languages other than C?
Where is this documented?
Product: binutils
Version: 2.16
Status: NEW
Severity: normal
Priority: P2
Component: gprof
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: paul dot leopardi at usyd dot edu dot au
CC: bug-binutils at gnu dot org
GCC host triplet: i386-redhat-linux
http://sourceware.org/bugzilla/show_bug.cgi?id=2704
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