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SubjectRe: Subtleties of __attribute__((packed))
On Wed, Dec 06, Phil Endecott wrote:

>
> To see a difference with your example structs you need to compare these two:
>
> struct wibble1 {
> char c;
> struct bar1 b1;
> };
>
> struct wibble2 {
> char c;
> struct bar2 b2;
> };
>
> struct wibble1 w1 = { 1, { 2, {3,4,5} } };
> struct wibble2 w2 = { 1, { 2, {3,4,5} } };
>
> Can you try that with your compilers? I get:
>

As I expected, I get:

.file "packed2a.c"
.globl w1
.data
.align 2
.type w1, @object
.size w1, 14
w1:
.byte 1
.byte 2
.4byte 3
.byte 4
.zero 3
.4byte 5
.globl w2
.align 2
.type w2, @object
.size w2, 14
w2:
.byte 1
.byte 2
.4byte 3
.byte 4
.zero 3
.4byte 5
.ident "GCC: (GNU) 4.1.2 20060531 (prerelease) (SUSE Linux)"
.section .note.GNU-stack,"",@progbits
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