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From: "Ben Collver (bencollver AT tilde DOT pink) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: gprof report incomplete
Date: Sun, 31 Jul 2022 22:34:45 -0000 (UTC)
Organization: A noiseless patient Spider
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Message-ID: <slrntee0oh.lbr.bencollver@svadhyaya.localdomain>
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

I am trying to use gprof in DJGPP 2.05.  I wrote a small test program
named hello.c.  On Linux, gprof correctly reports 10 calls to
function helloworld.  With DJGPP, gprof reports an undefined number
of calls to __dpmi_int and nothing else.

I have included the program source and output below [1].

I reviewed the DJGPP FAQ chapter 13 to verify that i ran gprof
correctly.  https://www.delorie.com/djgpp/v2faq/faq13_1.html

I am not sure how to troubleshoot this further.  Any other ideas?

Thanks!
-Ben

[1]
bash-5.1$ cat hello.c
#include <stdio.h>

void helloworld(void) {
    printf("hello world\r\n");
}

int main(int argc, char *argv[]) {
    int i;
    for (i = 0; i < 10; i++) {
        helloworld();
    }
}
bash-5.1$ gcc -pg -o hello hello.c
bash-5.1$ ./hello
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
bash-5.1$ gprof hello|head
Flat profile:

Each sample counts as 0.01 seconds.
 no time accumulated

  %   cumulative   self              self     total           
 time   seconds   seconds    calls  Ts/call  Ts/call  name    
  0.00      0.00     0.00       10     0.00     0.00  helloworld
 %         the percentage of the total running time of the


C:\>gcc --version
gcc.exe (GCC) 7.2.0
...
C:\>gcc -pg -o hello.exe hello.c
C:\>hello.exe
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
C:\>gprof hello.exe | head
Flat profile:

Each sample counts as 0.0555556 seconds.
  %   cumulative   self              self     total
 time   seconds   seconds    calls  Ts/call  Ts/call  name
100.00      0.11     0.11                             __dpmi_int

 %         the percentage of the total running time of the
time       program used by this function.
C:\>