1. Products and Versions Concerned
(1) The C compiler package for the R32C series
V.1.01 Release 00
(2) The C compiler package for the M32C series, M3T-NC308WA (NOTE 1)
V.5.00 Release 1 through V.5.41 Release 01
(3) The C compiler package for the M16C series, M3T-NC30WA (NOTE 2)
V.5.00 Release 1 through V.5.44 Release 00
NOTES:
1. The M32C series is the generic name of the M32C/80 and M16C/80
series.
2. The M16C series is the generic name of the M16C/60, /30, /20, /10,
/Tiny, and R8C/Tiny series.
2. Description
If a build is performed of the file that contains a static function
having a static variable within it with the optimizing option
-Ostatic_to_inline being selected, the utility SNI Generator, executed
after creating an absolute module file .x30, may be terminated
abnormally.
As a result, you are unable to utilize the stack analyzing tool, Call
Walker, that uses stack information generated by SNI Generator and the
Ecx Map tool that refers to mapping information.
2.1 Conditions
This problem occurs if the following conditions are all satisfied:
(1) A static function having a static variable within it is defined.
(2) The -finfo option is selected to invoke the compile driver.
(3) The -Ostatic_to_inline optimizing option is selected.
(4) When the C compiler package for the M32C series or the M16C series
is running, any one or more of the optimizing options -O1, -O2,
-O3, -O4, and -O5 are selected.
2.2 Example
------------------------------------------------------------------------
int xxx;
static void func( int a )
{
static int xxx;
xxx += a;
}
void main( void )
{
func(1);
}
------------------------------------------------------------------------
3. Workarounds
Avoid this problem in either of the following ways:
(1) Do not select -Ostatic_to_inline.
(2) Do not select -finfo.
NOTICE: When -finfo not selected, Call Walker and Ecx Map do not
operate.
(3) Do not define any static function having a static variable within it.
4. Schedule of Fixing the Problem
We plan to fix this problem in the next release of the products.
