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| H A D | Makefile | diff 2331d1a6 Sun Oct 11 15:22:58 MDT 2009 Sam Ravnborg <sam@ravnborg.org> kbuild: revert "save ARCH & CROSS_COMPILE ..." Revert commit 575543347b5baed0ca927cb90ba8807396fe9cc9 It caused following issues: - On architectures where ARCH= setting is used to select between 32 and 64 bit this was no longer possible without "make mrproper" - If ARCH was changed then kbuild refused to run "make mrproper" because ARCH had changed - When CROSS_COMPILE was changed people were asked to run "make mrproper" but kbuild refused to run "make mrproper" because CROSS_COMPILE changed. - Spaces in CROSS_COMPILE was not 'supported' - If an non-existing ARCH= was used kbuild could get stuck Lessons learned: . Despite being simple and straghtforward people uses very different approaches when building the kernel. . CROSS_COMPILE is sometimes used for ccache despite cache being only a CC frontend so one would have expected CC to be used for this purpose. . And obviously this was not tested widely enough. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> diff 2331d1a6 Sun Oct 11 15:22:58 MDT 2009 Sam Ravnborg <sam@ravnborg.org> kbuild: revert "save ARCH & CROSS_COMPILE ..." Revert commit 575543347b5baed0ca927cb90ba8807396fe9cc9 It caused following issues: - On architectures where ARCH= setting is used to select between 32 and 64 bit this was no longer possible without "make mrproper" - If ARCH was changed then kbuild refused to run "make mrproper" because ARCH had changed - When CROSS_COMPILE was changed people were asked to run "make mrproper" but kbuild refused to run "make mrproper" because CROSS_COMPILE changed. - Spaces in CROSS_COMPILE was not 'supported' - If an non-existing ARCH= was used kbuild could get stuck Lessons learned: . Despite being simple and straghtforward people uses very different approaches when building the kernel. . CROSS_COMPILE is sometimes used for ccache despite cache being only a CC frontend so one would have expected CC to be used for this purpose. . And obviously this was not tested widely enough. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> diff 2331d1a6 Sun Oct 11 15:22:58 MDT 2009 Sam Ravnborg <sam@ravnborg.org> kbuild: revert "save ARCH & CROSS_COMPILE ..." Revert commit 575543347b5baed0ca927cb90ba8807396fe9cc9 It caused following issues: - On architectures where ARCH= setting is used to select between 32 and 64 bit this was no longer possible without "make mrproper" - If ARCH was changed then kbuild refused to run "make mrproper" because ARCH had changed - When CROSS_COMPILE was changed people were asked to run "make mrproper" but kbuild refused to run "make mrproper" because CROSS_COMPILE changed. - Spaces in CROSS_COMPILE was not 'supported' - If an non-existing ARCH= was used kbuild could get stuck Lessons learned: . Despite being simple and straghtforward people uses very different approaches when building the kernel. . CROSS_COMPILE is sometimes used for ccache despite cache being only a CC frontend so one would have expected CC to be used for this purpose. . And obviously this was not tested widely enough. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> diff 2331d1a6 Sun Oct 11 15:22:58 MDT 2009 Sam Ravnborg <sam@ravnborg.org> kbuild: revert "save ARCH & CROSS_COMPILE ..." Revert commit 575543347b5baed0ca927cb90ba8807396fe9cc9 It caused following issues: - On architectures where ARCH= setting is used to select between 32 and 64 bit this was no longer possible without "make mrproper" - If ARCH was changed then kbuild refused to run "make mrproper" because ARCH had changed - When CROSS_COMPILE was changed people were asked to run "make mrproper" but kbuild refused to run "make mrproper" because CROSS_COMPILE changed. - Spaces in CROSS_COMPILE was not 'supported' - If an non-existing ARCH= was used kbuild could get stuck Lessons learned: . Despite being simple and straghtforward people uses very different approaches when building the kernel. . CROSS_COMPILE is sometimes used for ccache despite cache being only a CC frontend so one would have expected CC to be used for this purpose. . And obviously this was not tested widely enough. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> |
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