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# Nonsensical program used to generate an example DWARF4 and DWARF5 file.
# The generated code is the same, but the DWARF representation is different.
# = hello.h =
extern int m;
extern int baz (int x);
static inline int
frob (int a, int b)
{
int c = a;
if (a > b)
c -= b;
return baz (c);
}
# = hello.c =
#include <stddef.h>
#include "hello.h"
extern int main (int, char **);
int m = 2;
wchar_t foo (wchar_t);
int baz (int x)
{
int r = x;
if (x > m)
r -= m;
r = foo (r);
return r;
}
wchar_t
foo (wchar_t f)
{
if (f < 0)
return main (f, NULL);
return f > 0 ? frob (f - 1, m) : 0;
}
# = world.c =
#include "hello.h"
#include <stdlib.h>
int
calc (const char *word)
{
if (word == 0 || word[0] == '\0')
return 0;
return frob (word[0], m + 42);
}
int
main (int argc, const char **argv)
{
const char *n;
if (argc > 1)
n = argv[0];
else
n = "world";
exit (calc (n));
}
$ gcc -gdwarf-4 -gno-as-loc-support -gno-variable-location-views -O2 -c world.c
$ gcc -gdwarf-4 -gno-as-loc-support -gno-variable-location-views -O2 -c hello.c
$ gcc -o testfile-dwarf-4 hello.o world.o
$ gcc -gdwarf-5 -gno-as-loc-support -gno-variable-location-views -O2 -c world.c
$ gcc -gdwarf-5 -gno-as-loc-support -gno-variable-location-views -O2 -c hello.c
$ gcc -o testfile-dwarf-5 hello.o world.o
$ gcc -gdwarf-4 -gsplit-dwarf -gno-as-loc-support -gno-variable-location-views -O2 -o testfile-world4.o -c world.c
$ gcc -gdwarf-4 -gsplit-dwarf -gno-as-loc-support -gno-variable-location-views -O2 -o testfile-hello4.o -c hello.c
$ gcc -o testfile-splitdwarf-4 testfile-hello4.o testfile-world4.o
$ gcc -gdwarf-5 -gsplit-dwarf -gno-as-loc-support -gno-variable-location-views -O2 -o testfile-world5.o -c world.c
$ gcc -gdwarf-5 -gsplit-dwarf -gno-as-loc-support -gno-variable-location-views -O2 -o testfile-hello5.o -c hello.c
$ gcc -o testfile-splitdwarf-5 testfile-hello5.o testfile-world5.o
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