Added David Daney to CC.
On 9.6.2013 04:33, Daniel Tang wrote:
> The pointer passed to the _r() macro does not always match the type
> of the function that it is aliasing and raises several of the following
> warnings at compile time:
>
> warning: passing argument 1 of ‘r8’ from incompatible pointer type
In what environment (arch, compiler, glibc) are you seeing this?
Michal
> Fixed by casting the pointers to (void *) so they work with both the
> 32bit and 64bit code.
>
> Signed-off-by: Daniel Tang <dt.tangr@xxxxxxxxx>
> ---
> scripts/sortextable.h | 29 +++++++++++++++--------------
> 1 file changed, 15 insertions(+), 14 deletions(-)
>
> diff --git a/scripts/sortextable.h b/scripts/sortextable.h
> index f5eb43d..0a38fbd 100644
> --- a/scripts/sortextable.h
> +++ b/scripts/sortextable.h
> @@ -110,9 +110,9 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
> int i;
> int idx;
>
> - shdr = (Elf_Shdr *)((char *)ehdr + _r(&ehdr->e_shoff));
> + shdr = (Elf_Shdr *)((char *)ehdr + _r((void *)&ehdr->e_shoff));
> shstrtab_sec = shdr + r2(&ehdr->e_shstrndx);
> - secstrtab = (const char *)ehdr + _r(&shstrtab_sec->sh_offset);
> + secstrtab = (const char *)ehdr + _r((void *)&shstrtab_sec->sh_offset);
> for (i = 0; i < r2(&ehdr->e_shnum); i++) {
> idx = r(&shdr[i].sh_name);
> if (strcmp(secstrtab + idx, "__ex_table") == 0) {
> @@ -122,8 +122,8 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
> if ((r(&shdr[i].sh_type) == SHT_REL ||
> r(&shdr[i].sh_type) == SHT_RELA) &&
> r(&shdr[i].sh_info) == extab_index) {
> - relocs = (void *)ehdr + _r(&shdr[i].sh_offset);
> - relocs_size = _r(&shdr[i].sh_size);
> + relocs = (void *)ehdr + _r((void *)&shdr[i].sh_offset);
> + relocs_size = _r((void *)&shdr[i].sh_size);
> }
> if (strcmp(secstrtab + idx, ".symtab") == 0)
> symtab_sec = shdr + i;
> @@ -142,14 +142,14 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
> fprintf(stderr, "no __ex_table in file: %s\n", fname);
> fail_file();
> }
> - strtab = (const char *)ehdr + _r(&strtab_sec->sh_offset);
> + strtab = (const char *)ehdr + _r((void *)&strtab_sec->sh_offset);
>
> - extab_image = (void *)ehdr + _r(&extab_sec->sh_offset);
> + extab_image = (void *)ehdr + _r((void *)&extab_sec->sh_offset);
>
> if (custom_sort) {
> - custom_sort(extab_image, _r(&extab_sec->sh_size));
> + custom_sort(extab_image, _r((void *)&extab_sec->sh_size));
> } else {
> - int num_entries = _r(&extab_sec->sh_size) / extable_ent_size;
> + int num_entries = _r((void *)&extab_sec->sh_size) / extable_ent_size;
> qsort(extab_image, num_entries,
> extable_ent_size, compare_extable);
> }
> @@ -159,12 +159,13 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
>
> /* find main_extable_sort_needed */
> sort_needed_sym = NULL;
> - for (i = 0; i < _r(&symtab_sec->sh_size) / sizeof(Elf_Sym); i++) {
> - sym = (void *)ehdr + _r(&symtab_sec->sh_offset);
> + for (i = 0; i < _r((void *)&symtab_sec->sh_size) / sizeof(Elf_Sym); i++)
> + {
> + sym = (void *)ehdr + _r((void *)&symtab_sec->sh_offset);
> sym += i;
> if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
> continue;
> - idx = r(&sym->st_name);
> + idx = r((void *)&sym->st_name);
> if (strcmp(strtab + idx, "main_extable_sort_needed") == 0) {
> sort_needed_sym = sym;
> break;
> @@ -178,9 +179,9 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
> }
> sort_needed_sec = &shdr[r2(&sort_needed_sym->st_shndx)];
> sort_done_location = (void *)ehdr +
> - _r(&sort_needed_sec->sh_offset) +
> - _r(&sort_needed_sym->st_value) -
> - _r(&sort_needed_sec->sh_addr);
> + _r((void *)&sort_needed_sec->sh_offset) +
> + _r((void *)&sort_needed_sym->st_value) -
> + _r((void *)&sort_needed_sec->sh_addr);
>
> #if 0
> printf("sort done marker at %lx\n",
>
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