22 Oct, 2012
1 commit
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This patch adds essential components for generation of the contents of
the linker section that is used by the linker-generated array. All of
the contents is held in a separate file, u-boot.lst, which is generated
at runtime just before U-Boot is linked.The purpose of this code is to especially generate the appropriate
boundary symbols around each subsection in the section carrying the
linker-generated arrays. Obviously, the interim linker code for actual
placement of the variables into the section is generated too. The
generated file, u-boot.lst, is included into u-boot.lds via the linker
INCLUDE directive in u-boot.lds .Adjustments are made in the Makefile and spl/Makefile so that the
u-boot.lds and u-boot-spl.lds depend on their respective .lst files.Signed-off-by: Marek Vasut
Cc: Joe Hershberger
Cc: Mike Frysinger
Acked-by: Joe Hershberger
Tested-by: Joe Hershberger
16 Oct, 2012
3 commits
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Add support for running source code checkers on u-boot source, e.g.,
using sparse to aid with typechecking. This comes in especially
handy as SoC vendors mix and match cores and devices with different
endianness, thus here we add CHECK_ENDIAN to the otherwise linux
kernel default CHECKFLAGS.Signed-off-by: Kim Phillips
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Compile drivers/serial/serial.c by default both into SPL and into
non-SPL builds, since CONFIG_SERIAL_MULTI is now the default state.
Also having common/serial.c in by default now, it's pointless to keep
-DCONFIG_SERIAL_MULTI in CPPFLAGS any longer, so remove it as well.Signed-off-by: Marek Vasut
Cc: Marek Vasut
Cc: Tom Rini
Cc: Anatolij Gustschin
Cc: Stefan Roese -
Enable CONFIG_SERIAL_MULTI for all builds of U-Boot. That includes
both SPL builds and non-SPL builds, everything. To avoid poluting
this patch with removal of ifdef-endif constructions containing
CONFIG_SERIAL_MULTI, the CONFIG_SERIAL_MULTI is temporarily added
into CPPFLAGS in config.mk . This will be again removed in following
patch.Signed-off-by: Marek Vasut
Cc: Marek Vasut
Cc: Tom Rini
04 Oct, 2012
1 commit
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Modeled after gcc-version, add function to get binutils version.
Signed-off-by: Allen Martin
Acked-by: Wolfgang Denk
11 Aug, 2012
1 commit
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This patch makes sure that we always use the GNU ld. U-Boot uses certain
construct e.g. OVERLAY which are not implemented in gold therefore it
always needs GNU ld for linking.It works well if default linker in toolchain is GNU ld but in some
cases we can have gold to be the default linker and also ship GNU ld
but not as default in such cases its called $(PREFIX)ld.bfd, with this
patch we make sure that if $(PREFIX)ld.bfd exists than we use that for
our ld.This way it does not matter what the default ld is.
Signed-off-by: Otavio Salvador
Signed-off-by: Khem Raj
Acked-by: Mike Frysinger
07 Jul, 2012
1 commit
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On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. Both images are
created using mkimage (crc etc), so that the ROM bootloader can check
its integrity. Padding needs to be done to the SPL image (with
mkimage header) and not the binary. Otherwise the resulting image
which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
The resulting image containing both U-Boot images is called u-boot.spr.Signed-off-by: Stefan Roese
Cc: Amit Virdi
Cc: Vipin Kumar
15 May, 2012
1 commit
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Added from Linux - commit fde7d9049e55ab85a390be7f415d74c9f62dd0f9
Signed-off-by: Tom Rini
27 Mar, 2012
2 commits
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Acked-by: Mike Frysinger
Signed-off-by: Tom Rini -
Testing for -fstack-usage requires the creation of an output file, which
isn't possible with /dev/null.Signed-off-by: Tom Rini
08 Nov, 2011
1 commit
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Apply memoization to cc-option macro by caching the results of the
gcc calls. This macro is called very often so using cached results
leads to faster compilation times.The old behaviour can be restored by defining the config option
CONFIG_CC_OPT_CACHE_DISABLE=y.Signed-off-by: Daniel Schwierzeck
04 Nov, 2011
1 commit
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U-Boot Makefiles contain a number of tests for compiler features etc.
which so far are executed again and again. On some architectures
(especially ARM) this results in a large number of calls to gcc.This patch makes sure to run such tests only once, thus largely
reducing the number of "execve" system calls.Example: number of "execve" system calls for building the "P2020DS"
(Power Architecture) and "qong" (ARM) boards, measured as:
-> strace -f -e trace=execve -o /tmp/foo ./MAKEALL
-> grep execve /tmp/foo | wc -lBefore: After: Reduction:
==================================
P2020DS 20555 15205 -26%
qong 31692 14490 -54%As a result, built times are significantly reduced, typically by
30...50%.Signed-off-by: Wolfgang Denk
Cc: Andy Fleming
Cc: Kumar Gala
Cc: Albert Aribaud
cc: Graeme Russ
cc: Mike Frysinger
Tested-by: Graeme Russ
Tested-by: Matthias Weisser
Tested-by: Sanjeev Premi
Tested-by: Simon Glass
Tested-by: Macpaul Lin
Acked-by: Mike Frysinger
27 Oct, 2011
1 commit
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This new option allows U-Boot to embed a binary device tree into its image
to allow run-time control of peripherals. This device tree is for U-Boot's
own use and is not necessarily the same one as is passed to the kernel.The device tree compiler output should be placed in the $(obj)
rooted tree. Since $(OBJCOPY) insists on adding the path to the
generated symbol names, to ensure consistency it should be
invoked from the directory where the .dtb file is located and
given the input file name without the path.This commit contains my entry for the ugliest Makefile / shell interaction
competition.Signed-off-by: Simon Glass
22 Oct, 2011
1 commit
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People keep adding new code that still uses $(AR) instead of
$(cmd_link_o_target), so turn it into a build time error.We still use $(AR) locally, but we don't use $(ARFLAGS).
Signed-off-by: Mike Frysinger
18 Oct, 2011
1 commit
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The dependency rules are currently done in a shell 'for' loop. This does not
permit Makefile variables to adjust preprocessor flags as is done with normal
compile flags, using the CFLAGS_path/file.o syntax.This change moves the dependency generation into the Makefile itself, and
permits a CPPFLAGS_path/file.o to adjust preprocessor flags on a file or
directory basis.The CPPFLAGS_... variable is also folded into CFLAGS during the build.
Signed-off-by: Simon Glass
26 Jul, 2011
2 commits
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Some toolchains enable security warning flags by default, but these don't
really make sense in the u-boot world. Such as forcing changes like:
-printf(foo);
+printf("%s", foo);So disable the flags when the compiler supports them. Linux has already
merged a similar change in their build system.Signed-off-by: Mike Frysinger
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Signed-off-by: Aneesh V
Signed-off-by: Daniel Schwierzeck
23 Jun, 2011
1 commit
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LDSCRIPT is used only from the top-level Makefile and only when the
system is configured so we can move LDSCRIPT and CONFIG_SYS_LDSCRIPT
related logic into the top level Makefile and under configured condition
to avoid errors when building tools from unconfigured tree.Signed-off-by: Ilya Yanok
Acked-by: Mike Frysinger
30 Apr, 2011
1 commit
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Currently, some linker scripts are found by common code in config.mk.
Some are found using CONFIG_SYS_LDSCRIPT, but the code for that is
sometimes in arch config.mk and sometimes in board config.mk. Some
are found using an arch-specific rule for looking in CPUDIR, etc.Further, the powerpc config.mk rule relied on CONFIG_NAND_SPL
when it really wanted CONFIG_NAND_U_BOOT -- which covered up the fact
that not all NAND_U_BOOT builds actually wanted CPUDIR/u-boot-nand.lds.Replace all of this -- except for a handful of boards that are actually
selecting a linker script in a unique way -- with centralized ldscript
finding.If board code specifies LDSCRIPT, that will be used.
Otherwise, if CONFIG_SYS_LDSCRIPT is specified, that will be used.If neither of these are specified, then the central config.mk will
check for the existence of the following, in order:$(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds (only if CONFIG_NAND_U_BOOT)
$(TOPDIR)/$(CPUDIR)/u-boot-nand.lds (only if CONFIG_NAND_U_BOOT)
$(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
$(TOPDIR)/$(CPUDIR)/u-boot.ldsSome boards (sc3, cm5200, munices) provided their own u-boot.lds that
were dead code, because they were overridden by a CPUDIR u-boot.lds under
the old powerpc rules. These boards' own u-boot.lds have bitrotted and
no longer work -- these lds files have been removed.Signed-off-by: Scott Wood
Tested-by: Graeme Russ
23 Mar, 2011
1 commit
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commit 8aba9dceebb14144e07d19593111ee3a999c37fc
Divides variable of linker flags to LDFLAGS-u-boot and LDFLAGSbreaks the usage of --gc-section to build nand_spl. We still need linker option
--gc-section for every uboot image, not only the main one. LDFLAGS_FINAL passes
the --gc-sections to each uboot image.To get the proper linker flags, we use LDFLAGS and LDFLAGS_FINAL to replace
PLATFORM_LDFLAGS in the Makefile of each nand_spl board.Signed-off-by: Scott Wood
Signed-off-by: Haiying Wang
22 Mar, 2011
1 commit
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Seems to me that the top level config.mk should include
the auto generated include/config.mk so that all Makefile's
pickup those definitions.Signed-off-by: Joakim Tjernlund
26 Jan, 2011
1 commit
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Linker needs to use the proper endian/bfd flags even when doing partial linking.
LDFLAGS_u-boot sets linker option which is called it when U-boot is built
(u-boot final).
LDFLAGS sets necessary option by partial linking (use in cmd_link_o_target).CC: Mike Frysinger
Signed-off-by: Nobuhiro Iwamatsu
18 Dec, 2010
1 commit
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Multiple rules are using the expanded AFLAGS/CFLAGS settings and some are
getting so long that the rules need to be line wrapped. So unify them in
one variable, use that variable in the rule, and then unwrap things. This
makes the actual `make` output nicer as it doesn't have line continuations
in it anymore.Signed-off-by: Mike Frysinger
28 Nov, 2010
1 commit
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Signed-off-by: Wolfgang Denk
18 Nov, 2010
1 commit
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Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils. As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.The name of each former library archive is preserved except for
extensions which change from ".a" to ".o". This commit updates
references accordingly where needed, in particular in some linker
scripts.This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols. Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.Signed-off-by: Sebastien Carlier
19 Oct, 2010
1 commit
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The change is currently needed to be able to remove the board
configuration scripting from the top level Makefile and replace it by
a simple, table driven script.Moving this configuration setting into the "CONFIG_*" name space is
also desirable because it is needed if we ever should move forward to
a Kconfig driven configuration system.Signed-off-by: Wolfgang Denk
09 Aug, 2010
1 commit
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Simply trying to include a basic header file like stdlib.h on OS X 10.5
and then building with -traditional-cpp fails with lots of errors like:
In file included from /usr/include/stdlib.h:63,
from test.c:3:
/usr/include/available.h:85: error: stray '#' in program
/usr/include/available.h:85: error: syntax error before numeric constant
/usr/include/available.h:86: error: stray '#' in programIn the past, I hadn't noticed because the old logic for these flags were
restricted to Darwin running on PowerPC systems while I'm running on an
Intel system. But after some recent clean ups and changes, the flag was
being applied to all Darwin systems and my host tools broke.Signed-off-by: Mike Frysinger
28 May, 2010
1 commit
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The nios-32 arch is obsolete and broken. So it is removed.
Signed-off-by: Thomas Chou
27 May, 2010
1 commit
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Compiling tools subdirectory on Mac OS X 10.6 (Snow Leopard) complains about
wrong syntax in system includes.In file included from /usr/include/stdio.h:444,
from ../source/u-boot/include/compiler.h:26,
from ../source/u-boot/lib/crc32.c:15:
/usr/include/secure/_stdio.h:46: error: syntax error in macro parameter listThis can be fixed by reverting the workaround for prior OS X releases in
config.mk conditionally for OS X 10.6+.Signed-off-by: Andreas Bießmann
Acked-by: Mike Frysinger
13 Apr, 2010
4 commits
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Signed-off-by: Peter Tyser
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Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk
This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.Signed-off-by: Peter Tyser
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Previously, a specific file or directory could be compiled with custom
CFLAGS by adding a Makefile variable such as:
CFLAGS_dlmalloc.o =
or
CFLAGS_lib =This method breaks down once multiple files or directories share the
same path. Eg FLAGS_fileA = would incorrectly result in
both dir1/fileA.c and dir2/fileA.c being compiled with .This change allows finer grained control which we need once we move
lib_$ARCH to arch/$ARCH/lib/ and lib_generic/ to lib/. Without this
change all lib/ directories would share the same custom CFLAGS.Signed-off-by: Peter Tyser
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The CPUDIR variable points to the location of a target's CPU directory.
Currently, it is set to cpu/$CPU. However, using $CPUDIR will allow for
more flexibility in the future. It lays the groundwork for reorganizing
U-Boot's directory structure to support a layout such as:arch/$ARCH/cpu/$CPU/* (architecture with multiple CPU types)
arch/$ARCH/cpu/* (architecture with one CPU type)Signed-off-by: Peter Tyser
03 Dec, 2009
1 commit
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Currently, some of the tools instead set CC to be HOSTCC in order to re-use
some pattern rules -- but this fails when the user overrides CC on the make
command line. Also, the HOSTCFLAGS in tools/Makefile are currently not
being used because config.mk overwrites them.This patch adds static pattern rules for files that have been requested to
be built with the native compiler using $(HOSTSRCS) and $(HOSTOBJS), and
converts the tools to use them.It restores easylogo to using the host compiler, which was broken by commit
38d299c2db81bd889c601b5dfc12c4e83ef83333 (if this was an intentional change,
please let me know -- but it seems to be a build tool).It restores -pedantic and the special flags for darwin and cygwin that were
requested in tools/makefile (but keeps the flags added by config.mk) --
hopefully someone can test this on those platforms. It no longer
conditionalizes -pedantic on not being darwin; it wasn't clear that that was
intentional, and unless there's a real problem it's just inviting people to
contribute non-pedantic patches to those files (I'm not a fan of -pedantic
personally, but if it's on for one platform it should be on for all).HOST_LDFLAGS is renamed HOSTLDFLAGS for consistency with the previous
HOST_CFLAGS to HOSTCFLAGS rename. A new HOSTCFLAGS_NOPED is made available
for those files which currently cannot be built with -pedantic, and replaces
the old FIT_CFLAGS.imls now uses the cross compiler properly, rather than by trying to
reconstruct CC using the typoed $(CROSS_COMPILER).envcrc.c is now dependency-processed unconditionally -- previously it would
be built without being on (HOST)SRCS if CONFIG_ENV_IS_EMBEDDED was not
selected.Signed-off-by: Scott Wood
10 Sep, 2009
1 commit
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Some board ports place TEXT_BASE at a location that would cause the
RESET_VECTOR_ADDRESS not to be at 0xfffffffc when we link. By default
we assume RESET_VECTOR_ADDRESS will be 0xfffffffc if the board doesn't
explicitly set it.Signed-off-by: Kumar Gala
Acked-by: Wolfgang Denk
24 Aug, 2009
1 commit
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Start a common header file for common linker script code (such as
workarounds for older linkers) rather than doing this in the build system.As fallout, we no longer execute the linker every time config.mk is
included by a build file (which can easily be 70+ times), but rather only
execute it once.This also fixes a bug in the major version checking by creating a macro to
easily compare versions and keep people from making the same common
mistake (forgetting to check major and minor together).Signed-off-by: Mike Frysinger
22 Aug, 2009
2 commits
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Commit f62fb99941c6 fixed handling of all rodata sections by using a
wildcard combined with calls to ld's builtin functions SORT_BY_ALIGNMENT()
and SORT_BY_NAME(). Unfortunately these functions were only
introduced with biunutils version 2.16, so the modification broke
building with all tool chains using older binutils.This patch makes it work again. This is done by omitting the use of
these functions for such old tool chains. This will result in
slightly larger target binaries, as the rodata sections are no longer
in optimal order alignment-wise which reauls in unused gaps, but the
effect was found to be insignificant - especially compared to the fact
that you cannot build U-Boot at all in the current state.As ld seems to have no support for conditionals we run the linker
script through the C preprocessor which can be easily used to remove
the unwanted function calls.Note that the C preprocessor must be run with the "-ansi" (or a
"-std=") option to make sure all the system-specific predefined
macros outside the reserved namespace are suppressed. Otherise, cpp
might for example substitute "powerpc" to "1", thus corrupting for
example "OUTPUT_ARCH(powerpc)" etc.Signed-off-by: Wolfgang Denk
Cc: Mike Frysinger -
For some time there have been repeated reports about build problems
with some ARM (cross) tool chains. Especially issues about
(in)compatibility with the tool chain provided runtime support
library libgcc.a caused to add and support a private implementation
of such runtime support code in U-Boot. A closer look at the code
indicated that some of these issues are actually home-made. This
patch attempts to clean up some of the most obvious problems and make
building of U-Boot with different tool chains easier:- Even though all ARM systems basicy used the same compiler options
to select a specific ABI from the tool chain, the code for this was
distributed over all cpu/*/config.mk files. We move this one level
up into lib_arm/config.mk instead.- So far, we only checked if "-mapcs-32" was supported by the tool
chain; if yes, this was used, if not, "-mabi=apcs-gnu" was
selected, no matter if the tool chain actually understood this
option. There was no support for EABI conformant tool chains.
This patch implements the following logic:1) If the tool chain supports
"-mabi=aapcs-linux -mno-thumb-interwork"
we use these options (EABI conformant tool chain).
2) Otherwise, we check first if
"-mapcs-32"
is supported, and then check for
"-mabi=apcs-gnu"
If one test succeeds, we use the first found option.
3) In case 2), we also test if "-mno-thumb-interwork", and use
this if the test succeeds. [For "-mabi=aapcs-linux" we set
"-mno-thumb-interwork" mandatorily.]This way we use a similar logic for the compile options as the
Linux kernel does.- Some EABI conformant tool chains cause external references to
utility functions like raise(); such functions are provided in the
new file lib_arm/eabi_compat.cNote that lib_arm/config.mk gets parsed several times, so we must
make sure to add eabi_compat.o only once to the linker list.Signed-off-by: Wolfgang Denk
Cc: Jean-Christophe PLAGNIOL-VILLARD
Cc: Dirk Behme
Cc: Magnus Lilja
Cc: Tom Rix
Cc: Prafulla Wadaskar
Acked-by: Sergey Kubushyn
Tested-by: Magnus Lilja
Tested-by: Andrzej Wolski
Tested-by: Gaye Abdoulaye Walsimou
Tested-by: Tom Rix
Tested-by: Jean-Christophe PLAGNIOL-VILLARD
21 Jul, 2009
1 commit
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This cleans up U-Boot's toplevel directory a bit and makes the
architecture 'config.mk' file naming and location similar to board
and cpu 'config.mk' filesSigned-off-by: Peter Tyser
20 Jul, 2009
1 commit
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This variable is not unused anywhere.
Signed-off-by: Shinya Kuribayashi
