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Re: 4.0 regression: missing debug info for global variables in C with -O2
On May 30, 2005, at 3:14 PM, Andrew Pinski wrote:
On May 30, 2005, at 2:59 PM, Ulrich Weigand wrote:
Hello,
we've just noticed a quite serious regression in debug info output
in GCC 4.0 over previous releases: when building with -funit-at-a-time
(which is on by default with -O2), *no* debug info for global
variables
appears to be emitted at all.
I could not reproduce it with any of the following examples on
i686-pc-linux-gnu
with dwarf-2:
Never mind, gdb must use something else for variables.
You can reproduce it using:
static int i;
int main(void)
{
i += 3;
i *= 5;
return 0;
}
and readelf and looking for the DW_TAG_variable tag.
Thanks,
Andrew Pinski