Hi!
On Mon, Aug 24, 2020 at 03:53:44PM +0800, HAO CHEN GUI wrote:
> abs_jump_table = (!CASE_VECTOR_PC_RELATIVE
> &&
> !targetm.asm_out.generate_pic_addr_diff_vec ()) ? 1 : 0;
x = y ? 1 : 0;
is the same as
x = y;
if y is already only 0 or 1, and ot
Hi,
I revised the patch according to the advice. The attachment is the
revised change log and diff file. Thanks a lot.
Now it first judges if it's absolute jump table or not. Then decide if
the relocation is needed.
abs_jump_table = (!CASE_VECTOR_PC_RELATIVE
Hi!
On Mon, Aug 17, 2020 at 10:28:31AM +0800, HAO CHEN GUI wrote:
> >For the reloc, my understanding is the jump table needs to be
> >relocated if it's a non-relative jump table and PIC flag is set at the
> >same time.
Yes, I did say the *existing* code seems sub-optimal, too :-)
> >According
Segher,
Please ignore the attachments in my last email. My editor cached the old
things. Now they should be correct. Sorry for that.
On 17/8/2020 上午 10:20, HAO CHEN GUI wrote:
Segher,
Seems I sent the wrong diff file. Now the attachments should be
correct ones. Sorry for that.
For the r
Segher,
Seems I sent the wrong diff file. Now the attachments should be correct
ones. Sorry for that.
For the reloc, my understanding is the jump table needs to be relocated
if it's a non-relative jump table and PIC flag is set at the same time.
//stmt.c
if (CASE_VECTOR_PC_RELATIVE
Hi!
On Fri, Aug 14, 2020 at 03:20:03PM +0800, HAO CHEN GUI wrote:
> section *
> select_jump_table_section (tree decl)
> {
> int reloc;
> bool section_reloc;
>
> reloc = (! CASE_VECTOR_PC_RELATIVE && flag_pic &&
> ! targetm.asm_out.generate_pic_addr_diff_vec ()) ? 1 :
> 0;
(Mode
Hi,
This patch adds a section selection for jump tables. The jump tables can
be put into read-only data section or relocation read-only data section
by the relocation flags. When the PIC flag is set and jump table is
non-relative, the jump table is put into relocation read-only section.
sect
Hi,
This patch adds a section selection for jump tables. The jump tables can
be put into read-only data section or relocation read-only data section
by the relocation flags. When the PIC flag is set and jump table is
non-relative, the jump table is put into relocation read-only section.
sect
