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RENESAS TOOL NEWS on March 16, 2005: RSO-HEW_1-050316D
A Note on Using
the High-performance Embedded Workshop
--On Debugging ELF/DWARF2-Formatted Load Modules--
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Please take note of the following problem in using the High-performance
Embedded Workshop, an integrated development environment:
- On debugging ELF/DWARF2-formatted load modules
- Versions Concerned
High-performance Embedded Workshop V.2.1 through V.4.00.00
To check for the version number of your High-performance Embedded
Workshop, open the Help menu and select the About High-performance
Embedded Workshop command.
- Description
Debugging load modules created in the ELF/DWARF2 format may cause
the High-performance Embedded Workshop to terminate abnormally.
- 2.1 Conditions
- This problem occurs if the following problems are all satisfied:
| (1) |
A class- or structure-type variable is defined which has
union-type objects without names as its members. |
| (2) |
The variable in (1) is displayed in the Watch or Local window. |
| (3) |
(2)Then the variable in (1) is expanded to display* in the same window.
* To expand a variable to display is to display its members. |
Example:
-------------------------------------
struct Str3 {
long total;
union {
int i;
char c;
};
} gObj;
-------------------------------------
In the above example, the High-performance Embedded Workshop terminates
abnormally when the "gObj" variable is expanded to display.
- Workaround
This problem can be circumvented in either of the following ways:
| (1) | In the case shown in the above example, enter union-type members
without names into the Watch window such a manner as "gObj.i" or "gObj.c" |
| (2) | Define union-type members without names by giving variable names
as shown in the example below. |
Example:
-------------------------------------
struct Str3 {
long total;
union {
int i;
char c;
} m_Uni; /* Define by giving a variable name */
} gObj;
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- Schedule of Fixing the Problem
We plan to fix this problem in the next release of the product.
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