Does C2000 compiler 6.1.0 support packed structure?

Make sure you are using the --gcc option.  Supposing this doesn't help ...

Ren You said:

Does anyone know if this feature is available at all?

Yes.  It is available.

Ren You said:

However, it does not work.

Please show an example which doesn't work.  We need to build it ourselves, so please include all the required source, and the exact build options you used.  Please be clear about why it does not work.  

Thanks and regards,

-George

5468.test.zip

Thanks for the reply.  I am pretty sure -gcc is used.  The compiler rejects the __packed__ attribute and reports an error.

I attached a very simple test project.

Ren

// main.c ---

#include <stdio.h>

struct __attribute__((__packed__)) _my_struct
{
char x;
unsigned long y;

unsigned long a:8;
unsigned long b:8;
unsigned long c:8;
unsigned long d:8;
};

/*
* hello.c
*/
int main(void) {
//printf("Hello World!\n");

struct _my_struct t = {0};

t.a = 1;
t.b = 2;
t.c = 3;
t.d = 4;

return 0;
}

Compiled result:

**** Build of configuration Debug for project test ****

"C:\\ti\\ccsv5\\utils\\bin\\gmake" -k all
'Building file: ../hello.c'
'Invoking: C2000 Compiler'
"C:/ti/ccsv5/tools/compiler/c2000_6.1.0/bin/cl2000" -v28 -ml -mt -g --include_path="C:/ti/ccsv5/tools/compiler/c2000_6.1.0/include" --relaxed_ansi --gcc --diag_warning=225 --display_error_number --preproc_with_compile --preproc_dependency="hello.pp" "../hello.c"
"../hello.c", line 3: error #1167: invalid attribute for "struct _my_struct"
"../hello.c", line 20: warning #552-D: variable "t" was set but never used
1 error detected in the compilation of "../hello.c".

>> Compilation failure
gmake: *** [hello.obj] Error 1
gmake: Target `all' not remade because of errors.

**** Build Finished ****