Hello,
when compiling this code:
procedure My_int;
pragma Machine_Attribute (My_int, "signal");
pragma Export (C, My_int, "__vector_1");
procedure My_int is begin null; end;
with avr-gcc-4.x I get this warning:
demo_ada.adb:9: warning: `demo_ada__my_int' appears to be a misspelled
signal handler
I do not get this warning with gcc-3.4.x.
IMO, this is caused by the misspelled-signames patch
from Theodore A. Roth:
avr.c:
[...]
{
const char *func_name = IDENTIFIER_POINTER (DECL_NAME (*node));
const char *attr = IDENTIFIER_POINTER (name);
/* If the function has the 'signal' or 'interrupt' attribute, test to
make sure that the name of the function is "__vector_NN" so as to
catch when the user misspells the interrupt vector name. */
if (strncmp (attr, "interrupt", strlen ("interrupt")) == 0)
{
if (strncmp (func_name, "__vector", strlen ("__vector")) != 0)
{
warning (0, "%qs appears to be a misspelled interrupt handler",
func_name);
[...]
Ted's patch is a bit too C specific, because it assumes that the source
code function name is equal the symbol name.
(__vector_1 = __vector_1)
In Ada, the source code function name (demo_ada__my_int) for interrupts is
translated to__vector_xx with the "Pragma Export (..)" statement.
Its not possible to define "__vector_1" as a source code function name.
--
Summary: [4.0/4.1/4.2 Regression] Unfounded warnings from the AVR
backend
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: berndtrog at yahoo dot com
GCC target triplet: avr
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25448
