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linux: stack-area handling with recent Linux kernels

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We moved the stack-area segment 128 MiB behind text and data to comply
with assumptions in the kernel ELF loader.

This commit also reenables static binaries on linux and removes the
unused stack_area.stdlib.ld script.

Fixes #2521
This commit is contained in:
Christian Helmuth
2017-09-18 10:09:40 +02:00
parent ff800af820
commit ddfd3c0d7e
6 changed files with 19 additions and 25 deletions
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13
repos/base-linux/src/ld/stack_area.nostdlib.ld → repos/base-linux/src/ld/stack_area.ld
View File

@ -18,10 +18,17 @@ PHDRS
SECTIONS
{
. = 0x40000000;
_stack_area_start = .;
/*
* Since Linux loads ldso page aligned, we align the stack area after
* The virtual gap between start of text segment (0x0) and stack area
* must be sufficiently large to hold either the entire dynamic linker (text +
* data) or core (0x1000000 + text + data). Note, core-linux includes 80 MiB
* core-local memory in the BSS.
*/
. = 0x8000000; /* 128 MiB */
_stack_area_start = .;
/*
* Since Linux loads ldso page-aligned, we align the stack area after
* loading to a 1 MiB boundary, therefore we reserve one MiB more here.
*/
.stack_area : { . += 0x10100000; } : stack_area

19
repos/base-linux/src/ld/stack_area.stdlib.ld
View File

@ -1,19 +0,0 @@
/*
* \brief Linux-specific linker script additions (STDLIB = yes)
* \author Christian Helmuth
* \date 2010-09-22
*/
/*
* Copyright (C) 2010-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
SECTIONS
{
. = 0x40000000;
_stack_area_start = .;
.stack_area : { . += 0x10000000; }
}