[Bug target/102296] ELF symbol sizes for variable-length objects are broken (solaris)

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102296

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Oh the problem is not DECL_SIZE vs TYPE_SIZE  (sorry about that) but rather:
sol2.h:
          size = int_size_in_bytes (TREE_TYPE (DECL));          \
          ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size);         \


vs elfos.h:
          size = tree_to_uhwi (DECL_SIZE_UNIT (DECL));                  \
          ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size);                 \


I just did a cross to x86_64-solaris2.12 and got:
        .type   b, @object
        .size   b, 4

While on x86_64-linux-gnu I get:
        .type   b, @object
        .size   b, 24

Notice the 4 vs 24.

Replacing the size calucation from elfos.h to sol2.h and we get the 24 now.