HI !
while working on tracepoint implementation I tried turning on
architecture code tracing with:
/* Non-zero if we want to trace architecture code. */
#ifndef GDBARCH_DEBUG
#define GDBARCH_DEBUG 3
#endif
int gdbarch_debug = GDBARCH_DEBUG;
which compiles ok - but on execution of the so compiled gdb it crashes with
...
gdbarch_dump: DECR_PC_AFTER_BREAK # (gdbarch_decr_pc_after_break
(current_gdbarch))
gdbarch.c:1868: internal-error: gdbarch_addr_bit: Assertion `gdbarch != NULL'
failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n)
Create a core file of GDB? (y or n) y
Aborted
no core file is generated - and obviously gdb is not functioining - the
like reported as offending does not seem to be the direct cause of the
problem as it is not enabled by GDBARCH_DEBUG > 0
int
gdbarch_addr_bit (struct gdbarch *gdbarch)
{
gdb_assert (gdbarch != NULL);
/* Check variable changed from pre-default. */
gdb_assert (gdbarch->addr_bit != 0);
if (gdbarch_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "gdbarch_addr_bit called\n");
return gdbarch->addr_bit;
}
if I can provide any further infos let me know - to reproduce the problem
simply set #define GDBARCH_DEBUG 3 in gdb/gdbarch.c .
thx !
hofrat
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