License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 15:07:57 +01:00
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// SPDX-License-Identifier: GPL-2.0
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2005-04-17 00:20:36 +02:00
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/*
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* arch/alpha/boot/bootpz.c
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*
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* Copyright (C) 1997 Jay Estabrook
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*
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* This file is used for creating a compressed BOOTP file for the
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* Linux/AXP kernel
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*
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* based significantly on the arch/alpha/boot/main.c of Linus Torvalds
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* and the decompression code from MILO.
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*/
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#include <linux/kernel.h>
|
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 09:04:11 +01:00
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#include <linux/slab.h>
|
2005-04-17 00:20:36 +02:00
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#include <linux/string.h>
|
2009-10-18 00:52:28 +02:00
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#include <generated/utsrelease.h>
|
2005-04-17 00:20:36 +02:00
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#include <linux/mm.h>
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#include <asm/console.h>
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#include <asm/hwrpb.h>
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#include <asm/pgtable.h>
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#include <asm/io.h>
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#include <stdarg.h>
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#include "kzsize.h"
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/* FIXME FIXME FIXME */
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#define MALLOC_AREA_SIZE 0x200000 /* 2MB for now */
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/* FIXME FIXME FIXME */
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/*
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WARNING NOTE
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It is very possible that turning on additional messages may cause
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kernel image corruption due to stack usage to do the printing.
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*/
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#undef DEBUG_CHECK_RANGE
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#undef DEBUG_ADDRESSES
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#undef DEBUG_LAST_STEPS
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extern unsigned long switch_to_osf_pal(unsigned long nr,
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struct pcb_struct * pcb_va, struct pcb_struct * pcb_pa,
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unsigned long *vptb);
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extern int decompress_kernel(void* destination, void *source,
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size_t ksize, size_t kzsize);
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extern void move_stack(unsigned long new_stack);
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struct hwrpb_struct *hwrpb = INIT_HWRPB;
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static struct pcb_struct pcb_va[1];
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/*
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* Find a physical address of a virtual object..
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*
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* This is easy using the virtual page table address.
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*/
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#define VPTB ((unsigned long *) 0x200000000)
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static inline unsigned long
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find_pa(unsigned long address)
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{
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unsigned long result;
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result = VPTB[address >> 13];
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result >>= 32;
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result <<= 13;
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result |= address & 0x1fff;
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return result;
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}
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int
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check_range(unsigned long vstart, unsigned long vend,
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unsigned long kstart, unsigned long kend)
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{
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unsigned long vaddr, kaddr;
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#ifdef DEBUG_CHECK_RANGE
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srm_printk("check_range: V[0x%lx:0x%lx] K[0x%lx:0x%lx]\n",
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vstart, vend, kstart, kend);
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#endif
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/* do some range checking for detecting an overlap... */
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for (vaddr = vstart; vaddr <= vend; vaddr += PAGE_SIZE)
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{
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kaddr = (find_pa(vaddr) | PAGE_OFFSET);
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if (kaddr >= kstart && kaddr <= kend)
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{
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#ifdef DEBUG_CHECK_RANGE
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srm_printk("OVERLAP: vaddr 0x%lx kaddr 0x%lx"
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" [0x%lx:0x%lx]\n",
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vaddr, kaddr, kstart, kend);
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#endif
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return 1;
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}
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}
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return 0;
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}
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/*
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* This function moves into OSF/1 pal-code, and has a temporary
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* PCB for that. The kernel proper should replace this PCB with
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* the real one as soon as possible.
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*
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* The page table muckery in here depends on the fact that the boot
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* code has the L1 page table identity-map itself in the second PTE
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* in the L1 page table. Thus the L1-page is virtually addressable
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* itself (through three levels) at virtual address 0x200802000.
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*/
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#define L1 ((unsigned long *) 0x200802000)
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void
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pal_init(void)
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{
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unsigned long i, rev;
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struct percpu_struct * percpu;
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struct pcb_struct * pcb_pa;
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/* Create the dummy PCB. */
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pcb_va->ksp = 0;
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pcb_va->usp = 0;
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pcb_va->ptbr = L1[1] >> 32;
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pcb_va->asn = 0;
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pcb_va->pcc = 0;
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pcb_va->unique = 0;
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pcb_va->flags = 1;
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pcb_va->res1 = 0;
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pcb_va->res2 = 0;
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pcb_pa = (struct pcb_struct *)find_pa((unsigned long)pcb_va);
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/*
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* a0 = 2 (OSF)
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* a1 = return address, but we give the asm the vaddr of the PCB
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* a2 = physical addr of PCB
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* a3 = new virtual page table pointer
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* a4 = KSP (but the asm sets it)
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*/
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srm_printk("Switching to OSF PAL-code... ");
|
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i = switch_to_osf_pal(2, pcb_va, pcb_pa, VPTB);
|
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|
if (i) {
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|
srm_printk("failed, code %ld\n", i);
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__halt();
|
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|
}
|
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percpu = (struct percpu_struct *)
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(INIT_HWRPB->processor_offset + (unsigned long) INIT_HWRPB);
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rev = percpu->pal_revision = percpu->palcode_avail[2];
|
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srm_printk("OK (rev %lx)\n", rev);
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tbia(); /* do it directly in case we are SMP */
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}
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/*
|
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* Start the kernel.
|
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*/
|
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static inline void
|
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|
runkernel(void)
|
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{
|
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|
|
__asm__ __volatile__(
|
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|
"bis %0,%0,$27\n\t"
|
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"jmp ($27)"
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: /* no outputs: it doesn't even return */
|
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: "r" (START_ADDR));
|
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}
|
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/* Must record the SP (it is virtual) on entry, so we can make sure
|
|
|
|
not to overwrite it during movement or decompression. */
|
|
|
|
unsigned long SP_on_entry;
|
|
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/* Calculate the kernel image address based on the end of the BOOTP
|
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|
bootstrapper (ie this program).
|
|
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|
*/
|
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|
extern char _end;
|
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|
#define KERNEL_ORIGIN \
|
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|
|
((((unsigned long)&_end) + 511) & ~511)
|
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|
|
|
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|
|
/* Round address to next higher page boundary. */
|
|
|
|
#define NEXT_PAGE(a) (((a) | (PAGE_SIZE - 1)) + 1)
|
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|
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|
|
|
|
#ifdef INITRD_IMAGE_SIZE
|
|
|
|
# define REAL_INITRD_SIZE INITRD_IMAGE_SIZE
|
|
|
|
#else
|
|
|
|
# define REAL_INITRD_SIZE 0
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* Defines from include/asm-alpha/system.h
|
|
|
|
|
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|
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BOOT_ADDR Virtual address at which the consoles loads
|
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|
|
the BOOTP image.
|
|
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|
|
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KERNEL_START KSEG address at which the kernel is built to run,
|
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|
which includes some initial data pages before the
|
|
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|
code.
|
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START_ADDR KSEG address of the entry point of kernel code.
|
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ZERO_PGE KSEG address of page full of zeroes, but
|
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|
upon entry to kerne cvan be expected
|
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|
to hold the parameter list and possible
|
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INTRD information.
|
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These are used in the local defines below.
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
/* Virtual addresses for the BOOTP image. Note that this includes the
|
|
|
|
bootstrapper code as well as the compressed kernel image, and
|
|
|
|
possibly the INITRD image.
|
|
|
|
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|
Oh, and do NOT forget the STACK, which appears to be placed virtually
|
|
|
|
beyond the end of the loaded image.
|
|
|
|
*/
|
|
|
|
#define V_BOOT_IMAGE_START BOOT_ADDR
|
|
|
|
#define V_BOOT_IMAGE_END SP_on_entry
|
|
|
|
|
|
|
|
/* Virtual addresses for just the bootstrapper part of the BOOTP image. */
|
|
|
|
#define V_BOOTSTRAPPER_START BOOT_ADDR
|
|
|
|
#define V_BOOTSTRAPPER_END KERNEL_ORIGIN
|
|
|
|
|
|
|
|
/* Virtual addresses for just the data part of the BOOTP
|
|
|
|
image. This may also include the INITRD image, but always
|
|
|
|
includes the STACK.
|
|
|
|
*/
|
|
|
|
#define V_DATA_START KERNEL_ORIGIN
|
|
|
|
#define V_INITRD_START (KERNEL_ORIGIN + KERNEL_Z_SIZE)
|
|
|
|
#define V_INTRD_END (V_INITRD_START + REAL_INITRD_SIZE)
|
|
|
|
#define V_DATA_END V_BOOT_IMAGE_END
|
|
|
|
|
|
|
|
/* KSEG addresses for the uncompressed kernel.
|
|
|
|
|
|
|
|
Note that the end address includes workspace for the decompression.
|
|
|
|
Note also that the DATA_START address is ZERO_PGE, to which we write
|
|
|
|
just before jumping to the kernel image at START_ADDR.
|
|
|
|
*/
|
|
|
|
#define K_KERNEL_DATA_START ZERO_PGE
|
|
|
|
#define K_KERNEL_IMAGE_START START_ADDR
|
|
|
|
#define K_KERNEL_IMAGE_END (START_ADDR + KERNEL_SIZE)
|
|
|
|
|
|
|
|
/* Define to where we may have to decompress the kernel image, before
|
|
|
|
we move it to the final position, in case of overlap. This will be
|
|
|
|
above the final position of the kernel.
|
|
|
|
|
|
|
|
Regardless of overlap, we move the INITRD image to the end of this
|
|
|
|
copy area, because there needs to be a buffer area after the kernel
|
|
|
|
for "bootmem" anyway.
|
|
|
|
*/
|
|
|
|
#define K_COPY_IMAGE_START NEXT_PAGE(K_KERNEL_IMAGE_END)
|
|
|
|
/* Reserve one page below INITRD for the new stack. */
|
|
|
|
#define K_INITRD_START \
|
|
|
|
NEXT_PAGE(K_COPY_IMAGE_START + KERNEL_SIZE + PAGE_SIZE)
|
|
|
|
#define K_COPY_IMAGE_END \
|
|
|
|
(K_INITRD_START + REAL_INITRD_SIZE + MALLOC_AREA_SIZE)
|
|
|
|
#define K_COPY_IMAGE_SIZE \
|
|
|
|
NEXT_PAGE(K_COPY_IMAGE_END - K_COPY_IMAGE_START)
|
|
|
|
|
|
|
|
void
|
|
|
|
start_kernel(void)
|
|
|
|
{
|
|
|
|
int must_move = 0;
|
|
|
|
|
|
|
|
/* Initialize these for the decompression-in-place situation,
|
|
|
|
which is the smallest amount of work and most likely to
|
|
|
|
occur when using the normal START_ADDR of the kernel
|
|
|
|
(currently set to 16MB, to clear all console code.
|
|
|
|
*/
|
|
|
|
unsigned long uncompressed_image_start = K_KERNEL_IMAGE_START;
|
|
|
|
unsigned long uncompressed_image_end = K_KERNEL_IMAGE_END;
|
|
|
|
|
|
|
|
unsigned long initrd_image_start = K_INITRD_START;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Note that this crufty stuff with static and envval
|
|
|
|
* and envbuf is because:
|
|
|
|
*
|
|
|
|
* 1. Frequently, the stack is short, and we don't want to overrun;
|
|
|
|
* 2. Frequently the stack is where we are going to copy the kernel to;
|
|
|
|
* 3. A certain SRM console required the GET_ENV output to stack.
|
|
|
|
* ??? A comment in the aboot sources indicates that the GET_ENV
|
|
|
|
* destination must be quadword aligned. Might this explain the
|
|
|
|
* behaviour, rather than requiring output to the stack, which
|
|
|
|
* seems rather far-fetched.
|
|
|
|
*/
|
|
|
|
static long nbytes;
|
|
|
|
static char envval[256] __attribute__((aligned(8)));
|
|
|
|
register unsigned long asm_sp asm("30");
|
|
|
|
|
|
|
|
SP_on_entry = asm_sp;
|
|
|
|
|
|
|
|
srm_printk("Linux/Alpha BOOTPZ Loader for Linux " UTS_RELEASE "\n");
|
|
|
|
|
|
|
|
/* Validity check the HWRPB. */
|
|
|
|
if (INIT_HWRPB->pagesize != 8192) {
|
|
|
|
srm_printk("Expected 8kB pages, got %ldkB\n",
|
|
|
|
INIT_HWRPB->pagesize >> 10);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (INIT_HWRPB->vptb != (unsigned long) VPTB) {
|
|
|
|
srm_printk("Expected vptb at %p, got %p\n",
|
|
|
|
VPTB, (void *)INIT_HWRPB->vptb);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* PALcode (re)initialization. */
|
|
|
|
pal_init();
|
|
|
|
|
|
|
|
/* Get the parameter list from the console environment variable. */
|
|
|
|
nbytes = callback_getenv(ENV_BOOTED_OSFLAGS, envval, sizeof(envval));
|
|
|
|
if (nbytes < 0 || nbytes >= sizeof(envval)) {
|
|
|
|
nbytes = 0;
|
|
|
|
}
|
|
|
|
envval[nbytes] = '\0';
|
|
|
|
|
|
|
|
#ifdef DEBUG_ADDRESSES
|
|
|
|
srm_printk("START_ADDR 0x%lx\n", START_ADDR);
|
|
|
|
srm_printk("KERNEL_ORIGIN 0x%lx\n", KERNEL_ORIGIN);
|
|
|
|
srm_printk("KERNEL_SIZE 0x%x\n", KERNEL_SIZE);
|
|
|
|
srm_printk("KERNEL_Z_SIZE 0x%x\n", KERNEL_Z_SIZE);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* Since all the SRM consoles load the BOOTP image at virtual
|
|
|
|
* 0x20000000, we have to ensure that the physical memory
|
|
|
|
* pages occupied by that image do NOT overlap the physical
|
|
|
|
* address range where the kernel wants to be run. This
|
|
|
|
* causes real problems when attempting to cdecompress the
|
|
|
|
* former into the latter... :-(
|
|
|
|
*
|
|
|
|
* So, we may have to decompress/move the kernel/INITRD image
|
|
|
|
* virtual-to-physical someplace else first before moving
|
|
|
|
* kernel /INITRD to their final resting places... ;-}
|
|
|
|
*
|
|
|
|
* Sigh...
|
|
|
|
*/
|
|
|
|
|
|
|
|
/* First, check to see if the range of addresses occupied by
|
|
|
|
the bootstrapper part of the BOOTP image include any of the
|
|
|
|
physical pages into which the kernel will be placed for
|
|
|
|
execution.
|
|
|
|
|
|
|
|
We only need check on the final kernel image range, since we
|
|
|
|
will put the INITRD someplace that we can be sure is not
|
|
|
|
in conflict.
|
|
|
|
*/
|
|
|
|
if (check_range(V_BOOTSTRAPPER_START, V_BOOTSTRAPPER_END,
|
|
|
|
K_KERNEL_DATA_START, K_KERNEL_IMAGE_END))
|
|
|
|
{
|
|
|
|
srm_printk("FATAL ERROR: overlap of bootstrapper code\n");
|
|
|
|
__halt();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Next, check to see if the range of addresses occupied by
|
|
|
|
the compressed kernel/INITRD/stack portion of the BOOTP
|
|
|
|
image include any of the physical pages into which the
|
|
|
|
decompressed kernel or the INITRD will be placed for
|
|
|
|
execution.
|
|
|
|
*/
|
|
|
|
if (check_range(V_DATA_START, V_DATA_END,
|
|
|
|
K_KERNEL_IMAGE_START, K_COPY_IMAGE_END))
|
|
|
|
{
|
|
|
|
#ifdef DEBUG_ADDRESSES
|
|
|
|
srm_printk("OVERLAP: cannot decompress in place\n");
|
|
|
|
#endif
|
|
|
|
uncompressed_image_start = K_COPY_IMAGE_START;
|
|
|
|
uncompressed_image_end = K_COPY_IMAGE_END;
|
|
|
|
must_move = 1;
|
|
|
|
|
|
|
|
/* Finally, check to see if the range of addresses
|
|
|
|
occupied by the compressed kernel/INITRD part of
|
|
|
|
the BOOTP image include any of the physical pages
|
|
|
|
into which that part is to be copied for
|
|
|
|
decompression.
|
|
|
|
*/
|
|
|
|
while (check_range(V_DATA_START, V_DATA_END,
|
|
|
|
uncompressed_image_start,
|
|
|
|
uncompressed_image_end))
|
|
|
|
{
|
|
|
|
#if 0
|
|
|
|
uncompressed_image_start += K_COPY_IMAGE_SIZE;
|
|
|
|
uncompressed_image_end += K_COPY_IMAGE_SIZE;
|
|
|
|
initrd_image_start += K_COPY_IMAGE_SIZE;
|
|
|
|
#else
|
|
|
|
/* Keep as close as possible to end of BOOTP image. */
|
|
|
|
uncompressed_image_start += PAGE_SIZE;
|
|
|
|
uncompressed_image_end += PAGE_SIZE;
|
|
|
|
initrd_image_start += PAGE_SIZE;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
srm_printk("Starting to load the kernel with args '%s'\n", envval);
|
|
|
|
|
|
|
|
#ifdef DEBUG_ADDRESSES
|
|
|
|
srm_printk("Decompressing the kernel...\n"
|
|
|
|
"...from 0x%lx to 0x%lx size 0x%x\n",
|
|
|
|
V_DATA_START,
|
|
|
|
uncompressed_image_start,
|
|
|
|
KERNEL_SIZE);
|
|
|
|
#endif
|
|
|
|
decompress_kernel((void *)uncompressed_image_start,
|
|
|
|
(void *)V_DATA_START,
|
|
|
|
KERNEL_SIZE, KERNEL_Z_SIZE);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Now, move things to their final positions, if/as required.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifdef INITRD_IMAGE_SIZE
|
|
|
|
|
|
|
|
/* First, we always move the INITRD image, if present. */
|
|
|
|
#ifdef DEBUG_ADDRESSES
|
|
|
|
srm_printk("Moving the INITRD image...\n"
|
|
|
|
" from 0x%lx to 0x%lx size 0x%x\n",
|
|
|
|
V_INITRD_START,
|
|
|
|
initrd_image_start,
|
|
|
|
INITRD_IMAGE_SIZE);
|
|
|
|
#endif
|
|
|
|
memcpy((void *)initrd_image_start, (void *)V_INITRD_START,
|
|
|
|
INITRD_IMAGE_SIZE);
|
|
|
|
|
|
|
|
#endif /* INITRD_IMAGE_SIZE */
|
|
|
|
|
|
|
|
/* Next, we may have to move the uncompressed kernel to the
|
|
|
|
final destination.
|
|
|
|
*/
|
|
|
|
if (must_move) {
|
|
|
|
#ifdef DEBUG_ADDRESSES
|
|
|
|
srm_printk("Moving the uncompressed kernel...\n"
|
|
|
|
"...from 0x%lx to 0x%lx size 0x%x\n",
|
|
|
|
uncompressed_image_start,
|
|
|
|
K_KERNEL_IMAGE_START,
|
|
|
|
(unsigned)KERNEL_SIZE);
|
|
|
|
#endif
|
|
|
|
/*
|
|
|
|
* Move the stack to a safe place to ensure it won't be
|
|
|
|
* overwritten by kernel image.
|
|
|
|
*/
|
|
|
|
move_stack(initrd_image_start - PAGE_SIZE);
|
|
|
|
|
|
|
|
memcpy((void *)K_KERNEL_IMAGE_START,
|
|
|
|
(void *)uncompressed_image_start, KERNEL_SIZE);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Clear the zero page, then move the argument list in. */
|
|
|
|
#ifdef DEBUG_LAST_STEPS
|
|
|
|
srm_printk("Preparing ZERO_PGE...\n");
|
|
|
|
#endif
|
|
|
|
memset((char*)ZERO_PGE, 0, PAGE_SIZE);
|
|
|
|
strcpy((char*)ZERO_PGE, envval);
|
|
|
|
|
|
|
|
#ifdef INITRD_IMAGE_SIZE
|
|
|
|
|
|
|
|
#ifdef DEBUG_LAST_STEPS
|
|
|
|
srm_printk("Preparing INITRD info...\n");
|
|
|
|
#endif
|
|
|
|
/* Finally, set the INITRD paramenters for the kernel. */
|
|
|
|
((long *)(ZERO_PGE+256))[0] = initrd_image_start;
|
|
|
|
((long *)(ZERO_PGE+256))[1] = INITRD_IMAGE_SIZE;
|
|
|
|
|
|
|
|
#endif /* INITRD_IMAGE_SIZE */
|
|
|
|
|
|
|
|
#ifdef DEBUG_LAST_STEPS
|
|
|
|
srm_printk("Doing 'runkernel()'...\n");
|
|
|
|
#endif
|
|
|
|
runkernel();
|
|
|
|
}
|
2007-05-06 23:50:37 +02:00
|
|
|
|
|
|
|
/* dummy function, should never be called. */
|
|
|
|
void *__kmalloc(size_t size, gfp_t flags)
|
|
|
|
{
|
|
|
|
return (void *)NULL;
|
|
|
|
}
|