Hi, Jan
I have compiled using CodeSourcery compiler and no compilation errors.
Regards,
Chun Yeow
On 10/13/07, Jan Kiszka <[EMAIL PROTECTED]> wrote:
>
> Hi Chun Yeow,
>
> I just tried to reproduce your issue with RTcfg. As I do not have a
> target to test yet, I tried a synthetic test first, see below. What
> output does compiling that code with your compiler? I tried both with
> some TimeSys toolchain and latest from CodeSourcery. The former fails on
> Gilles' pattern, the latter passes all tests without complaints.
>
> Jan
>
> PS: Will now try to integrate your AT91 driver _really_ soon :) - once
> I have a full build environment (kernel, Xenomai, RTnet) running.
>
> --
>
> typedef unsigned char u8;
> typedef unsigned short u16;
>
> #define __BIG_ENDIAN_BITFIELD
>
> struct rtcfg_frm_head {
> #if defined(__LITTLE_ENDIAN_BITFIELD)
> u8 id:5,
> version:3;
> #elif defined(__BIG_ENDIAN_BITFIELD)
> u8 version:3,
> id:5;
> #else
> #error unsupported byte order
> #endif
> } __attribute__((packed));
>
> struct rtcfg_frm_announce {
> struct rtcfg_frm_head head;
> u8 addr_type;
> u8 addr[0];
> u8 flags;
> u8 burstrate;
> } __attribute__((packed));
>
> struct rtcfg_frm_announce2 {
> struct rtcfg_frm_head head;
> u8 addr_type;
> u8 flags;
> u8 burstrate;
> } __attribute__((packed));
>
> struct rtcfg_frm_stage_1_cfg {
> struct rtcfg_frm_head head;
> u8 addr_type;
> u8 client_addr[0];
> u8 server_addr[0];
> u8 burstrate;
> u16 cfg_len;
> u8 cfg_data[0];
> } __attribute__((packed));
>
> struct rtcfg_frm_stage_1_cfg2 {
> struct rtcfg_frm_head head;
> u8 addr_type;
> u8 burstrate;
> u16 cfg_len;
> } __attribute__((packed));
>
> struct foo {
> struct a {
> char b;
> } /*__attribute__((packed))*/ c;
> char d;
> short e;
> } __attribute__((packed));
>
> struct bar {
> char a;
> } __attribute__((packed));
>
> struct qux {
> struct bar b;
> char c;
> short d;
> } __attribute__((packed));
>
> int main()
> {
> char c[1 - 2 *(sizeof(struct rtcfg_frm_announce) - sizeof(struct
> rtcfg_frm_announce2))];
> char d[1 - 2 *(sizeof(struct rtcfg_frm_stage_1_cfg) -
> sizeof(struct rtcfg_frm_stage_1_cfg2))];
> char e[1 - 2 *(sizeof(struct foo) - sizeof(struct qux))];
>
> c[0] = 0;
> d[0] = 0;
> e[0] = 0;
>
> return 0;
> }
>
>
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