Changes in Makefile

7b665784 - xtensa: remove unneeded export in boot-elf/Makefile

Sat, 13 Mar 2021 12:23:42 +0000

xtensa: remove unneeded export in boot-elf/MakefileNo one uses these as environment variables.Signed-off-by: Masahiro Yamada Message-Id: <20210313122342.69995-2-masahiroy@kernel.org>Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

c425c546 - xtensa: move CONFIG_CPU_*_ENDIAN defines to Kconfig

Sat, 13 Mar 2021 12:23:41 +0000

xtensa: move CONFIG_CPU_*_ENDIAN defines to KconfigMove the definition of CONFIG_CPU_*_ENDIAN to Kconfig, the best placefor CONFIG options.I slightly simplified the test code. You can use the -P option to suppresslinemarker generation. The grep command is unneeded. $ echo __XTENSA_EB__ | xtensa-linux-gcc -E - # 1 "" # 1 "" # 1 "" # 1 "" 1 $ echo __XTENSA_EB__ | xtensa-linux-gcc -E -P - 1Signed-off-by: Masahiro Yamada Message-Id: <20210313122342.69995-1-masahiroy@kernel.org>Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

3ec8a5b3 - kbuild: do not export LDFLAGS_vmlinux

Wed, 01 Jul 2020 19:29:36 +0000

kbuild: do not export LDFLAGS_vmlinuxWhen you clean the build tree for ARCH=arm, you may see the followingerror message from 'nm' command:$ make -j24 ARCH=arm clean CLEAN arch/arm/crypto CLEAN arch/arm/kernel CLEAN arch/arm/mach-at91 CLEAN arch/arm/mach-omap2 CLEAN arch/arm/vdso CLEAN certs CLEAN lib CLEAN usr CLEAN net/wireless CLEAN drivers/firmware/efi/libstubnm: 'arch/arm/boot/compressed/../../../../vmlinux': No such file/bin/sh: 1: arithmetic expression: expecting primary: " " CLEAN arch/arm/boot/compressed CLEAN drivers/scsi CLEAN drivers/tty/vt CLEAN arch/arm/boot CLEAN vmlinux.symvers modules.builtin modules.builtin.modinfoEven if you rerun the same command, the error message will not beshown despite vmlinux is already gone.To reproduce it, the parallel option -j is needed. Single threadcleaning always executes 'archclean', 'vmlinuxclean' in this order,so vmlinux still exists when arch/arm/boot/compressed/ is cleaned.Looking at arch/arm/boot/compressed/Makefile does not help understandthe reason of the error message. Both KBSS_SZ and LDFLAGS_vmlinux areassigned with '=' operator, hence, they are not expanded unless used.Obviously, 'make clean' does not use them.In fact, the root cause exists in the top Makefile: export LDFLAGS_vmlinuxSince LDFLAGS_vmlinux is an exported variable, LDFLAGS_vmlinux inarch/arm/boot/compressed/Makefile is expanded when scripts/Makefile.cleanhas a command to execute. This is why the error message shows up onlywhen there exist build artifacts in arch/arm/boot/compressed/.Adding 'unexport LDFLAGS_vmlinux' to arch/arm/boot/compressed/Makefilewill fix it as far as ARCH=arm is concerned, but I think the proper fixis to get rid of 'export LDFLAGS_vmlinux' from the top Makefile.LDFLAGS_vmlinux in the top Makefile contains linker flags for the topvmlinux. LDFLAGS_vmlinux in arch/arm/boot/compressed/Makefile is forarch/arm/boot/compressed/vmlinux. They just happen to have the samevariable name, but are used for different purposes. Stop shadowingLDFLAGS_vmlinux.This commit passes LDFLAGS_vmlinux to scripts/link-vmlinux.sh via acommand line parameter instead of via an environment variable. LD andKBUILD_LDFLAGS are exported, but I did the same for consistency. Anyway,they must be included in cmd_link-vmlinux to allow if_changed to detectthe changes in LD or KBUILD_LDFLAGS.The following Makefiles are not affected: arch/arm/boot/compressed/Makefile arch/h8300/boot/compressed/Makefile arch/nios2/boot/compressed/Makefile arch/parisc/boot/compressed/Makefile arch/s390/boot/compressed/Makefile arch/sh/boot/compressed/Makefile arch/sh/boot/romimage/Makefile arch/x86/boot/compressed/MakefileThey use ':=' or '=' to clear the LDFLAGS_vmlinux inherited from thetop Makefile.We need to take a closer look at the impact to unicore32 and xtensa.arch/unicore32/boot/compressed/Makefile only uses '+=' operator forLDFLAGS_vmlinux. So, the decompressor previously inherited the linkerflags from the top Makefile.However, commit 70fac51feaf2 ("unicore32 additional architecture files:boot process") was merged before commit 1f2bfbd00e46 ("kbuild: link ofvmlinux moved to a script"). So, I rather consider this is a bug fix of1f2bfbd00e46.arch/xtensa/boot/boot-elf/Makefile is also affected, but this is alsoconsidered a fix for the same reason. It did not inherit LDFLAGS_vmlinuxwhen commit 4bedea945451 ("[PATCH] xtensa: Architecture support forTensilica Xtensa Part 2") was merged. I deleted $(LDFLAGS_vmlinux),which is now empty.Signed-off-by: Masahiro Yamada Reviewed-by: Nick Desaulniers Tested-by: Nick Desaulniers List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

8824c1af - xtensa: add boot subdirectories build artifacts to 'targets'

Wed, 22 Jul 2020 00:47:07 +0000

xtensa: add boot subdirectories build artifacts to 'targets'Xtensa always rebuilds the following even if nothing in the source codehas been changed. Passing V=2 shows the reason. AS arch/xtensa/boot/boot-elf/bootstrap.o - due to bootstrap.o not in $(targets) LDS arch/xtensa/boot/boot-elf/boot.lds - due to boot.lds not in $(targets)They are built by if_changed(_dep). Add them to 'targets' so .*.cmd filesare included.Signed-off-by: Masahiro Yamada Message-Id: <20200722004707.779601-1-masahiroy@kernel.org>Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

65898b37 - xtensa: move vmlinux.bin[.gz] to boot subdirectory

Wed, 22 Jul 2020 05:20:19 +0000

xtensa: move vmlinux.bin[.gz] to boot subdirectoryvmlinux.bin and vmlinux.bin.gz are always rebuilt in the kernel buildprocess. Add them to 'targets' and move them to the boot subdirectorywhere their rules are. Update make rules that refer to them.Reviewed-by: Masahiro Yamada Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

d503ac53 - kbuild: rename LDFLAGS to KBUILD_LDFLAGS

Thu, 23 Aug 2018 23:20:39 +0000

kbuild: rename LDFLAGS to KBUILD_LDFLAGSCommit a0f97e06a43c ("kbuild: enable 'make CFLAGS=...' to addadditional options to CC") renamed CFLAGS to KBUILD_CFLAGS.Commit 222d394d30e7 ("kbuild: enable 'make AFLAGS=...' to addadditional options to AS") renamed AFLAGS to KBUILD_AFLAGS.Commit 06c5040cdb13 ("kbuild: enable 'make CPPFLAGS=...' to addadditional options to CPP") renamed CPPFLAGS to KBUILD_CPPFLAGS.For some reason, LDFLAGS was not renamed.Using a well-known variable like LDFLAGS may result in accidentaloverride of the variable.Kbuild generally uses KBUILD_ prefixed variables for the internallyappended options, so here is one more conversion to sanitize thenaming convention.I did not touch Makefiles under tools/ since the tools build systemis a different world.Signed-off-by: Masahiro Yamada Acked-by: Kirill A. Shutemov Reviewed-by: Palmer Dabbelt List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

9a736fcb - xtensa: clean up bootable image build targets

Sun, 25 Dec 2016 12:58:57 +0000

xtensa: clean up bootable image build targetsCurrently xtensa uses 'zImage' as a synonym of 'all', but in fact xtensasupports three targets: 'Image' (ELF image with reset vector), 'zImage'(compressed redboot image) and 'uImage' (U-Boot image).Provide separate 'Image', 'zImage' and 'uImage' make targets that onlybuild corresponding image type. Make 'all' build all images appropriatefor a platform.Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

e85e335f - xtensa: add MMU v3 support

Mon, 03 Dec 2012 11:01:43 +0000

xtensa: add MMU v3 supportMMUv3 comes out of reset with identity vaddr -> paddr mapping in the TLBway 6:Way 6 (512 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0x00000000 0x00000000 0x01 0x03 RWX Bypass 0x20000000 0x20000000 0x01 0x03 RWX Bypass 0x40000000 0x40000000 0x01 0x03 RWX Bypass 0x60000000 0x60000000 0x01 0x03 RWX Bypass 0x80000000 0x80000000 0x01 0x03 RWX Bypass 0xa0000000 0xa0000000 0x01 0x03 RWX Bypass 0xc0000000 0xc0000000 0x01 0x03 RWX Bypass 0xe0000000 0xe0000000 0x01 0x03 RWX BypassThis patch adds remapping code at the reset vector or at the kernel_start (depending on CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX) thatreconfigures MMUv3 as MMUv2:Way 5 (128 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0xd0000000 0x00000000 0x01 0x07 RWX WB 0xd8000000 0x00000000 0x01 0x03 RWX BypassWay 6 (256 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0xe0000000 0xf0000000 0x01 0x07 RWX WB 0xf0000000 0xf0000000 0x01 0x03 RWX BypassSigned-off-by: Max Filippov Signed-off-by: Chris Zankel List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

3f5ec298 - xtensa: clean up boot make rules

Mon, 05 Nov 2012 05:10:00 +0000

xtensa: clean up boot make rules- remove duplicate rules for binary and packed image- use predefined macros for ld/objcopy/gzip- remove build-id section from bootable elf imageSigned-off-by: Max Filippov Signed-off-by: Chris Zankel List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

9ad79b58 - xtensa: drop CONFIG_EMBEDDED_RAMDISK

Mon, 17 Sep 2012 01:44:50 +0000

xtensa: drop CONFIG_EMBEDDED_RAMDISKRemove Kconfig entries, boot subdirectory, dependencies from otherboot-* Makefiles, and sections from ld scripts.Remove stale redboot code that used to pass initrd addresses in a3 anda4 to _start.Signed-off-by: Max Filippov Signed-off-by: Chris Zankel List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

7c94fe4a - xtensa: fix parallel make

Mon, 17 Sep 2012 01:44:49 +0000

xtensa: fix parallel makeMake vmlinux.tmp and vmlinux.tmp.gz separate build targets, avoidremoving vmlinux.tmp during vmlinux.tmp.gz build.Signed-off-by: Max Filippov Signed-off-by: Chris Zankel List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

bdd362ff - [XTENSA] Fix makefile to work with binutils-2.18.

Sat, 02 Feb 2008 00:56:32 +0000

[XTENSA] Fix makefile to work with binutils-2.18.When building with binutils-2.18, vmlinux includes .note.gnu.build-idsections that need to be stripped out when building the binary image.The old .xt.insn sections haven't been used for a long time, so don'tbother stripping them.Signed-off-by: Bob Wilson Signed-off-by: Chris Zankel List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

36dffadb - [XTENSA] Use preprocessor to generate the linker script for the ELF boot image

Tue, 12 Feb 2008 21:14:17 +0000

[XTENSA] Use preprocessor to generate the linker script for the ELF boot imageSigned-off-by: Marc Gauthier Signed-off-by: Chris Zankel List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

e7d163f7 - [PATCH] xtensa: Removed local copy of zlib and fixed O= support

Thu, 30 Jun 2005 09:58:59 +0000

[PATCH] xtensa: Removed local copy of zlib and fixed O= supportRemoved an unnecessary local copy of zlib (sorry for the add'l traffic).Fixed 'O=' support (thanks to Jan Dittmer for pointing it out). Some minorclean-ups in the make files.Signed-off-by: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile

4bedea94 - [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 2

Fri, 24 Jun 2005 05:01:12 +0000

[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 2The attached patches provides part 2 of an architecture implementation for theTensilica Xtensa CPU series.Signed-off-by: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/xtensa/boot/boot-elf/Makefile