Hi there,
I maintain a GCC port for a small 16 bit processor called XAP2+. I'm
having problems with strings of wide characters.
I have the following defines, among others:
#define BITS_PER_UNIT 16
...
#define WCHAR_TYPE "int"
#define WCHAR_TYPE_SIZE 16
So, I'm expecting char and wchar_t to both be 16 bits wide. This mostly
works fine. However, when outputing assembler for wide strings, it all
goes wrong. Internally, gcc stores the string as a char*, so a string
literal like this:
L"foo"
Is translated by libcpp into something like this:
"\0f\0o\0o"
The string gets passed around in a STRING_CST and varasm uses
ASM_OUTPUT_ASCII to write some assembler. However, at this point, I need
to do different things depending on whether I'm dealing with wide or
narrow characters (ie, wide characters have two octets packed into 16
bits, and narrow characters are {sign,zero} extended to 16 bits) and
that information seems to have been thrown away.
I have a bodge, which involves looking at the type of the STRING_CST in
varasm, guessing if it's wide and maybe calling a new
assemble_string_wide function.
I'd be interested to hear any comments or suggestions.
I'm working with gcc 4.0.2.
Ned.
