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Aligning .text segments
- From: K Jski <bielsk1 at vt dot edu>
- To: Binutils <binutils at sourceware dot org>
- Date: Tue, 9 Dec 2014 19:11:54 -0500
- Subject: Aligning .text segments
- Authentication-results: sourceware.org; auth=none
this is like a stack overflow question but I need help:
I am trying to align functions for multiple binary files on different
ISAs configuring GOLD with a linker script
(i.e. I have a program with functions foo with size= 0xc9,bar
size=0x18, and a main. Assume .text addr starts at 0x400000000
suppose the original layout of the file is
foo at 0x40000010
bar at 0x400000c9
main in at 0x40000400
so I just would want the following to happen
foo to be aligned at 0x40000050
bar to be aligned at 0x40000100
main stays at 0x40000400
I have an attempt at a linker script (I never worked on linkers in my
life) that I feed gold as an arg "myscript.x". (source below) what
happens when gold produces a binary is that it creates another .text
section and inserts them at the designated addresses. running the
program results in "Killed"
myscript.x
SECTIONS{
.text:
{
. = ALIGN(0x50);
*(.text.foo)
. = ALIGN(0x50);
*(.text.bar)
}
}
(I have tried to use INSERT AFTER .text after the sections declaration
but then it gives a unexpected STRING fatal error)
Sincerely,
C Jelesnianski