Re: [PATCH 3/5] LoongArch: Support relocation against _GLOBAL_OFFSET_TABLE_

From: Jinyang He
Date: Thu Jul 28 2022 - 07:24:07 EST


On 07/28/2022 06:57 PM, Xi Ruoyao wrote:

On Thu, 2022-07-28 at 17:14 +0800, Jinyang He wrote:
Not sure but maybe re-align is needed here.
Since '{BYTE(0)}' actually use 1byte. _GLOABL_OFFSET_TABLE_ may have
difference with really GOT table entry. Have no machine and without
test... :-(
BYTE(0) is only for preventing the linker from removing the section.
All we want from the linker is a slot for .got in the section table, and
the actual property (including size) will be filled at runtime by
module_frob_arch_sections. The first GOT entry won't be "appended"
after one byte, it is wrote into the start of .got (at runtime).
Thank you for the detail answer which solves a doubt
that bothered me for a long time. I used to define the
'sym' outside of '.sec'. It always failed without align.