Hi,
Is GCC + gprof supposed to handle nested functions?
It looks like they are not properly reported.
The original problem was on Ada code with nested
functions. This is with HEAD and GNU gprof 2.15.91.0.2
on a SuSE 9.2 system.
Thanks in advance,
Laurent
$ cat cn.c
#define N 10000000
static int sum=0;
void p1(void) {
int i;
for(i=1;i<=N;i++) sum+=(i+1)/i;
}
void p2(void) {
int f2(int x) {
return x;
}
int i;
for(i=1;i<=2*N;i++) sum+=f2(i+1)/i;
}
void p3(void) {
int i;
for(i=1;i<=3*N;i++) sum+=(i+1)/i;
}
int main(void) {
p1();
p2();
p3();
return 0;
}
$ gcc -pg -g cn.c
$ ./a.out
$ gprof ./a.out
[...]
Flat profile:
% cumulative self self total
time seconds seconds calls s/call s/call name
49.49 8.70 8.70 1 8.70 8.70 p3
34.13 14.70 6.00 1 6.00 6.00 p2
16.38 17.58 2.88 1 2.88 2.88 p1
[...]
index % time self children called name
<spontaneous>
[1] 100.0 0.00 17.58 main [1]
8.70 0.00 1/1 p3 [2]
6.00 0.00 1/1 p2 [3]
2.88 0.00 1/1 p1 [4]
-----------------------------------------------
8.70 0.00 1/1 main [1]
[2] 49.5 8.70 0.00 1 p3 [2]
-----------------------------------------------
20000000 p2 [3]
6.00 0.00 1/1 main [1]
[3] 34.1 6.00 0.00 1+20000000 p2 [3]
20000000 p2 [3]
-----------------------------------------------
2.88 0.00 1/1 main [1]
[4] 16.4 2.88 0.00 1 p1 [4]
-----------------------------------------------
