Skip to content

U
U-Boot.Mirror

OS / U-Boot.Mirror

通知 1
Star 0
Fork 0
U
U-Boot.Mirror

体验新版 GitCode，发现更多精彩内容 >>

切换分支/标签
  1. 13 3月, 2014 2 次提交
  3. 11 3月, 2014 2 次提交
  5. 07 3月, 2014 5 次提交
    • M
      kbuild: move "checkgcc4" to PowerPC archprepare · d57d60cf
      由 Masahiro Yamada 提交于 
      "checkgcc4" is used only for PowerPC.
Move it to arch/powerpc/config.mk.

To make sure gcc is new enough before beginning build,
run "checkgcc4" during "archprepare".
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
      d57d60cf
    • M
      kbuild: move "checkthumb" to ARM archprepare · 388b2e52
      由 Masahiro Yamada 提交于 
      "checkthumb" makes sense only for ARM architecture.
Move it to arch/arm/config.mk.

To make sure gcc supports THUMB mode before beginning build,
run "checkthumb" during "archprepare".
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
      388b2e52
    • M
      kbuild: improve Kbuild speed · 026f9cf2
      由 Masahiro Yamada 提交于 
      Kbuild brought about many advantages for us but a significant
performance regression was reported by Simon Glass.

After some discussions and analysis, it turned out
its main cause is in $(call cc-option,...).

Historically, U-Boot parses all config.mk
(arch/*/config.mk and board/*/config.mk)
every time descending into subdirectories.
That means cc-options are evaluated over and over again.

$(call cc-option,...) is useful but costly.
So we want to evaluate them only in ./Makefile
and spl/Makefile and export compiler flags.

This commit changes the build system as follows:

  - Modify scripts/Makefile.build to not include config.mk
    Instead, add $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y,
    cppflags-y.

  - Export many variables
    Going forward, Kbuild will not parse config.mk files
    when it descends into subdirectories.
    If we want to set variables in config.mk and use them
    in subdirectories, they must be exported.

    This is the list of variables to get exported:
      PLATFORM_CPPFLAGS
      CPUDIR
      BOARDDIR
      OBJCOPYFLAGS
      LDFLAGS
      LDFLAGS_FINAL
        (used in nand_spl/board/*/*/Makefile)
      CONFIG_STANDALONE_LOAD_ADDR
        (used in examples/standalone/Makefile)
      SYM_PREFIX
        (used in examples/standalone/Makefile)
      RELFLAGS
        (used in examples/standalone/Makefile)

  - Delete CPPFLAGS
    This variable has been replaced with PLATFORM_CPPFLAGS

  - Copy gcclibdir from example/standalone/Makefile
    to arch/sparc/config.mk
    The reference in CONFIG_STANDALONE_LOAD_ADDR must be
    resolved before it is exported.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Reported-by: NSimon Glass <sjg@chromium.org>
Acked-by: NSimon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org> [on Sandbox]
Tested-by: Stephen Warren <swarren@nvidia.com> [on Tegra]
      026f9cf2
    • M
      kbuild: add CONFIG_ prefix to USE_PRIVATE_LIBGCC · cd2e46cb
      由 Masahiro Yamada 提交于 
      Before this commit, USE_PRIVATE_LIBGCC was defined in
arch-specific config.mk and referenced in
arch/$(ARCH)/lib/Makefile.

We are not happy about parsing config.mk again and again.
We have to keep the same behavior with a different way.

By adding "CONFIG_" prefix, this macro appears
in include/autoconf.mk, include/spl-autoconf.mk.
(And treating USE_PRIVATE_LIBGCC as CONFIG macro
is reasonable enough.)

Tegra SoC family defined USE_PRIVATE_LIBGCC as "yes"
in arch/arm/cpu/arm720t/tegra*/config.mk,
whereas did not define it in arch/arm/cpu/armv7/tegra*/config.mk.

It means Tegra enables PRIVATE_LIBGCC only for SPL.
We can describe the same behavior by adding

  #ifdef CONFIG_SPL_BUILD
  # define CONFIG_USE_PRIVATE_LIBGCC
  #endif

to include/configs/tegra-common.h.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: NStephen Warren <swarren@nvidia.com>
      cd2e46cb
    • M
      xilinx: delete meaningless .gitignore files · cbac2a6e
      由 Masahiro Yamada 提交于 
      config.tmp is never generated
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Acked-by: NMichal Simek <michal.simek@xilinx.com>
      cbac2a6e
  7. 05 3月, 2014 8 次提交
  9. 04 3月, 2014 2 次提交
  11. 26 2月, 2014 18 次提交
  13. 25 2月, 2014 1 次提交
  15. 22 2月, 2014 2 次提交