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2017-01-03MIPS: zboot: Consolidate compiler flag filtering.Ralf Baechle1-1/+1
Al Viro noticed that we were using two different methods to filter out flags from KBUILD_CFLAGS. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reported-by: Al Viro <viro@zeniv.linux.org.uk>
2017-01-03MIPS: Zboot: Don't use $(LINUXINCLUDE) twicePaul Bolle1-2/+2
The make variables KBUILD_CFLAGS and KBUILD_AFLAGS both contain $(LINUXINCLUDE). But the build already picks up $(LINUXINCLUDE) from scripts/Makefile.lib. The net effect is that the (long) list of include directories is used twice. This is harmless but pointless. So stop using $(LINUXINCLUDE) twice. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14622/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-01-03MIPS: zboot: Add "uzImage.bin" targetMaarten ter Huurne1-0/+4
uzImage.bin is vmlinuz.bin wrapped in a legacy U-Boot image. Since the extraction code is inside the image, it does not depend on the boot loader to extract the kernel. Signed-off-by: Maarten ter Huurne <maarten@treewalker.org> Cc: Alban Bedel <albeu@free.fr> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14473/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-13MIPS: ath79: Add zboot debug serial supportAlban Bedel1-0/+5
Reuse the early printk code to support the serial in zboot. We copy early_printk.c instead of referencing it because we need to build a different object file for the normal kernel and zboot. Signed-off-by: Alban Bedel <albeu@free.fr> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Alex Smith <alex.smith@imgtec.com> Cc: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12234/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-04-03MIPS: zboot: Remove copied source files on cleanAlban Bedel1-0/+1
The copied source files must be added to the extra-y list to have them removed on clean. Signed-off-by: Alban Bedel <albeu@free.fr> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Alex Smith <alex.smith@imgtec.com> Cc: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12233/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-04-03MIPS: zboot: Fix the build with XZ compression on older GCC versionsAlban Bedel1-3/+3
Some older GCC version (at least 4.6) emits calls to __bswapsi2() when building the XZ decompressor. The link of the compressed image then fails with the following error: arch/mips/boot/compressed/decompress.o: In function '__fswab32': include/uapi/linux/swab.h:60: undefined reference to '__bswapsi2' Add bswapsi.o to the link to fix the build with these versions. Signed-off-by: Alban Bedel <albeu@free.fr> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Alex Smith <alex.smith@imgtec.com> Cc: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12232/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: zboot: Add support for serial debug using the PROMAlban Bedel1-0/+1
As most platforms implement the PROM serial interface prom_putchar() add a simple bridge to allow re-using this code for zboot. Signed-off-by: Alban Bedel <albeu@free.fr> Cc: Alex Smith <alex.smith@imgtec.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11811/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-24MIPS: zboot: Avoid useless rebuildsAlban Bedel1-6/+8
Add dummy.o to the targets list, and fill targets automatically from $(vmlinuzobjs) to avoid having to maintain two lists. When building with XZ compression copy ashldi3.c to the build directory to use a different object file for the kernel and zboot. Without this the same object file need to be build with different flags which cause a rebuild at every run. Signed-off-by: Alban Bedel <albeu@free.fr> Cc: linux-mips@linux-mips.org Cc: Alex Smith <alex.smith@imgtec.com> Cc: Wu Zhangjin <wuzhangjin@gmail.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11810/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Fix alignment of quiet build output for vmlinuz linkAlex Smith1-1/+1
The "LD vmlinuz" line in the quiet build output is misaligned with the rest of the output. Fix this. Signed-off-by: Alex Smith <alex.smith@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11019/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: Reduce kernel image size for !CONFIG_DEBUG_ZBOOTWu Zhangjin1-1/+2
!CONFIG_DEBUG_ZBOOT doesn't need puts() and puthex(), remove them and the corrospindig strings for !CONFIG_DEBUG_ZBOOT, as a result, it saves about 1280 bytes. [ralf@linux-mips.org: Resolved reject.] Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/1898/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-31MIPS: Allow platforms to specify the decompressor load addressAndrew Bresticker1-2/+4
Platforms which use raw zboot images may need to link the image at a fixed address if there is no other way to communicate the load address to the bootloader. Allow the per-platform Kbuild files to specify an optional zboot image load address (zload-y) and fall back to calc_vmlinuz_load_addr if unset. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/9566/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-01-24MIPS: ZBOOT: gather string functions into string.cAntony Pavlov1-2/+2
In the worst case this adds less then 128 bytes of code but on the other hand this makes code organization more clear. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: John Crispin <blogic@openwrt.org> Cc: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6344/
2013-10-29MIPS: ZBOOT: Support LZ4 compression schemeFlorian Fainelli1-0/+1
Add support for the LZ4 compression scheme in the ZBOOT decompression stub, in order to support it we need to: - select the "lz4" compression tool to compress the vmlinux.bin payload - memcpy() is also required for decompress_unlz4.c so we share the implementation between GZIP, XZ and now LZ4 Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Cc: blogic@openwrt.org Cc: james.hogan@imgtec.com Patchwork: https://patchwork.linux-mips.org/patch/5829/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-29MIPS: ZBOOT: Support XZ compression schemeFlorian Fainelli1-0/+5
Add support for the XZ compression scheme in the ZBOOT decompression stub, in order to support it we need to: - select the "xzkern" compression tool to compress the vmlinux.bin payload - link with ashldi3.o for xz_dec_run() to work - memcpy() is also required for decompress_unxz.c so we share the implementation between GZIP and XZ Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Cc: blogic@openwrt.org Cc: james.hogan@imgtec.com Patchwork: https://patchwork.linux-mips.org/patch/5818/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Refactor load/entry address calculationsJames Hogan1-1/+1
The vmlinux load address and entry address is calculated in multiple places: - arch/mips/Makefile defines load-y from CONFIG_PHYSICAL_START (or defined by the platform) and passes it to arch/mips/boot/compressed/Makefile. - arch/mips/boot/compressed/Makefile calculates kernel entry using nm. - arch/mips/lasat/image/Makefile calculates both load and entry address using nm. Lets combine these in the main Makefile and then pass them as Make parameters to each of the three boot image Makefiles (in boot/, boot/compressed, lasat/image/). The boot/ Makefile doesn't currently use them, but will soon need to for U-Boot image targets. The existing load-y definition is used in preference to calculating the load address using nm. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5794/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-01MIPS: Boot: Compressed: Remove -fstack-protector from CFLAGSMarkos Chandras1-0/+2
When building with -fstack-protector, gcc emits the __stack_chk_guard and __stack_chk_fail symbols to check for stack stability. These symbols are defined in vmlinux but the generated vmlinux.bin that is used to create the compressed vmlinuz image has no symbol table so the linker can't find these symbols during the final linking phase. As a result of which, we need either to redefine these symbols just for the compressed image or drop the -fstack-protector option when building the compressed image. This patch implements the latter of two options. Fixes the following linking problem: dbg.c:(.text+0x7c): undefined reference to `__stack_chk_guard' dbg.c:(.text+0x80): undefined reference to `__stack_chk_guard' dbg.c:(.text+0xd4): undefined reference to `__stack_chk_guard' dbg.c:(.text+0xec): undefined reference to `__stack_chk_fail' [ralf@linux-mips.org: I'm applying this before the patch that actually adds stack protector support for MIPS. This means, it will not be possible to trigger above error message with any commit from the tree but rather they are what one would hit without this commit.] Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Markos Chandras <markos.chandras@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/5575/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-02-01MIPS: Whitespace cleanup.Ralf Baechle1-4/+4
Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-23MIPS: Enable vmlinuz for JZ4740Lluís Batlle i Rossell1-0/+4
This patch adds support for building a compressed kernel for the JZ4740 architecture. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Maarten ter Huurne <maarten@treewalker.org> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3563/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linusLinus Torvalds1-1/+1
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: MIPS: Enable ISA_DMA_API config to fix build failure MIPS: 32-bit: Fix build failure in asm/fcntl.h MIPS: Remove all generated vmlinuz* files on "make clean" MIPS: do_sigaltstack() expects userland pointers MIPS: Fix error values in case of bad_stack MIPS: Sanitize restart logics MIPS: secure_computing, syscall audit: syscall number should in r2, not r0. MIPS: Don't block signals if we'd failed to setup a sigframe
2010-10-18MIPS: Remove all generated vmlinuz* files on "make clean"Wu Zhangjin1-1/+1
[Ralf: I changed the patch to explicitly list all files to be deleted out of paranoia.] Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/1590/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-04MIPS: Calculate VMLINUZ_LOAD_ADDRESS based on the length of vmlinux.binShmulik Ladkani1-1/+1
Fix VMLINUZ_LOAD_ADDRESS calculation to be based on the length of vmlinux.bin, the actual uncompressed kernel binary. Previously it was based on the length of KBUILD_IMAGE (the unstripped ELF vmlinux), which is bigger than vmlinux.bin. As a result, vmlinuz was loaded into a memory address higher then actually needed - a problem for small memory platforms. Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> To: linux-mips@linux-mips.org Cc: alex@digriz.org.uk Cc: manuel.lauss@googlemail.com Cc: sam@ravnborg.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1564/ Acked-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: strip the un-needed sections of vmlinuzWu Zhangjin1-0/+3
This patch use "strip -s" to strip the .symtab and .strtab sections of vmlinuz. Note: This patch is based on http://patchwork.linux-mips.org/patch/1324/ Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1383/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: Clean up the calculation of VMLINUZ_LOAD_ADDRESSWu Zhangjin1-13/+13
We have calculated VMLINUZ_LOAD_ADDRESS in shell, which is indecipherable. This patch rewrites it in C. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> To: linux-mips <linux-mips@linux-mips.org> Cc: Alexander Clouter <alex@digriz.org.uk> Cc: Manuel Lauss <manuel.lauss@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Alexander Clouter <alex@digriz.org.uk> Patchwork: https://patchwork.linux-mips.org/patch/1324/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: Unify the suffix of compressed vmlinux.binWu Zhangjin1-8/+4
The compressed vmlinux.bin is only a temp file so it's ok to use the same suffix .z for them (.gz,.lzo,.lzma...) to remove several lines and simpify the maintenance (no need to add the "suffix_$(xxx) := suffix" line). Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> To: linux-mips <linux-mips@linux-mips.org> Cc: Alexander Clouter <alex@digriz.org.uk> Cc: Manuel Lauss <manuel.lauss@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Patchwork: https://patchwork.linux-mips.org/patch/1323/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
2010-08-05MIPS: Alchemy: remove SOC_AU1X00 in favor of MIPS_ALCHEMYManuel Lauss1-1/+1
Remove the CONFIG_SOC_AU1X00 Kconfig symbol since its job can also be done by MACH_ALCHEMY, now renamed to MIPS_ALCHEMY. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/1461/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: Refactor arch/mips/boot/compressed/MakefileSam Ravnborg1-25/+29
- use hostprogs-y for the elf2ecoff - list all *.o file in targets - renamed obj-y to vmlinuzobjs-y (it was confusing to re-use a kbuild variable) - fix all uses of if_changed/cmd - use kbuild rules to beautify output - update clean-file to clean vmlinuz.* in top-level directory - simplied logic in arch/mips/Makefile for compressed targets The net result is a more kbuild conformant Makefile but readability did not increase. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> To: linux-mips <linux-mips@linux-mips.org> To: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/1304/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Make the debugging of compressed kernel configurableWu Zhangjin1-0/+2
This patch adds a new DEBUG_ZBOOT option to allow the users to enable it to debug the compressed kernel support for a new board and this optoin should be disabled to reduce the kernel image size and speed up the kernel booting procedure when the compressed kernel support is stable. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> To: Ralf Baechle <ralf@linux-mips.org> Cc: Manuel Lauss <manuel.lauss@googlemail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/918/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Alchemy: debug output for compressed kernelsManuel Lauss1-0/+1
Hook up the compressed debug output for all Alchemy systems supported by current kernel codebase. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Cc: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/879/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Cleanup the Makefile of compressed kernel supportWu Zhangjin1-3/+3
This patch removes a useless "\" (line break) and tunes the format of a long line. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/869/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Loongson: Change the Email address of Wu ZhangjinWu Zhangjin1-1/+1
Currently wuzj@lemote.com is not usable; change it to wuzhangjin@gmail.com. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: yanh@lemote.com Cc: huhb@lemote.com Cc: zhangfx@lemote.com Patchwork: http://patchwork.linux-mips.org/patch/829/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-01-28MIPS: Fix vmlinuz build for 32bit-only math shellsAlexander Clouter1-2/+5
POSIX requires $((<expression>)) arithmetic in sh only to have long arithmetic so on 32-bit sh binaries might do only 32-bit arithmetic but the arithmetic done in arch/mips/boot/compressed/Makefile needs 64-bit. I play with the AR7 platform, so VMLINUX_LOAD_ADDRESS is 0xffffffff94100000, and for an example 4MiB kernel VMLINUZ_LOAD_ADDRESS is made out to be: ---- alex@berk:~$ bash -c 'printf "%x\n" $((0xffffffff94100000 + 0x400000))' ffffffff94500000 alex@berk:~$ dash -c 'printf "%x\n" $((0xffffffff94100000 + 0x400000))' 80000000003fffff ---- The former is obviously correct whilst the later breaks things royally. Fortunately working with only the lower 32bit's works for both bash and dash: ---- $ bash -c 'printf "%x\n" $((0x94100000 + 0x400000))' 94500000 $ dash -c 'printf "%x\n" $((0x94100000 + 0x400000))' 94500000 ---- So, we can split the original 64bit string to two parts, and only calculate the low 32bit part, which is big enough (1GiB kernel sizes anyone?) for a normal Linux kernel image file, now, we calculate the VMLINUZ_LOAD_ADDRESS like this: 1. if present, append top 32bit of VMLINUX_LOAD_ADDRESS" as a prefix 2. get the sum of the low 32bit of VMLINUX_LOAD_ADDRESS + VMLINUX_SIZE This patch fixes vmlinuz kernel builds on systems where only a 32bit-only math shell is available. Patch Changelog: Version 2 - simplified method by using 'expr' for 'substr' and making it work with dash once again Version 1 - Revert the removals of '-n "$(VMLINUX_SIZE)"' to avoid the error of "make clean" - Consider more cases of the VMLINUX_LOAD_ADDRESS Version 0 - initial release Signed-off-by: Alexander Clouter <alex@digriz.org.uk> Acked-by: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/861/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-01-28MIPS: Add support of LZO-compressed kernelsWu Zhangjin1-0/+2
The necessary changes to the x86 Kconfig and boot/compressed to allow the use of this new compression method. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Patchwork: http://patchwork.linux-mips.org/patch/857/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-01-12MIPS: Cleanup and Fixup of compressed kernel supportWu Zhangjin1-6/+3
o Remove the .initrd section. The initrd section was already handled when vmlinux was linked. o Discard .MIPS.options, .options, .pdr, .reginfo, .comment and .note sections. If .MIPS.options is not removed, kernels compiled with gcc 3.4.6 will not boot. o Clean up the file format. o Remove several other unneeded sections. Tested with GCC 3.4.6 and 4.4.1 with and without initrd. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/785/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-12-17MIPS: Add support for GZIP / BZIP2 / LZMA compressed kernel imagesWu Zhangjin1-0/+100
This patch helps to generate smaller kernel images for linux-MIPS, Here is the effect when using lzma: $ ls -sh vmlinux 7.1M vmlinux $ ls -sh vmlinuz 1.5M vmlinuz Have tested the 32bit kernel on Qemu/Malta and 64bit kernel on FuLoong Mini PC. both of them work well. and also, tested by Alexander Clouter on an AR7 based Linksys WAG54Gv2, and by Manuel Lauss on an Alchemy board. This -v2 version incorporate the feedback from Ralf, and add the following changes: 1. add .ecoff, .bin, .erec format support 2. only enable it and the debug source code for the machines we tested 3. a dozen of fixups and cleanups and if you want to enable it for your board, please try to select SYS_SUPPORTS_ZBOOT for it, and if the board have an 16550 compatible uart, you can select SYS_SUPPORTS_ZBOOT_UART16550 directly. and then sending the relative patches to Ralf. Tested-by: Manuel Lauss <manuel.lauss@googlemail.com> Tested-by: Alexander Clouter <alex@digriz.org.uk> Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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