path: root/post/lib_powerpc
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* PPC: fix "Warning: FOO uses hard float, BAR uses soft float".Wolfgang Denk2011-12-232-2/+156
| | | | | | | | | | | | | | | | | | | | | | | | | | | It appears that with recent versions of GCC the explicit "-mhard-float" command line option takes precedence over the ``asm(".gnu_attribute 4, 2");'' in the source file, so this no longer helps to avoid the warnings we get when linking code that uses FP instructions with other code that was built using soft-float. We can remove the ".gnu_attribute" (which appears to carry no other information, at least so far) from the object files, but we also have to make sure we don't pull in the __gcc_qsub() and __gcc_qmul() functions from the standard libgcc, as these would again "infect" our linking. We copy this code from: gcc-4.2.2/gcc/config/rs6000/darwin-ldouble.c This old version was chosen because it was still available under a compatible license (GCC v2+). The file was stripped down to the needed parts, and reformatted so it passes checkpatch with only one warning (do not add new typedefs). Signed-off-by: Wolfgang Denk <> Cc: Kumar Gala <> Cc: Stefan Roese <> Cc: Andy Fleming <> Cc: Kim Phillips <> Tested-by: Stefan Roese <> Tested-by: Anatolij Gustschin <>
* 20001122-1.c: Fix GCC 4.6 build warningStefan Roese2011-11-161-2/+1
| | | | | | | | Fix: 20001122-1.c: In function 'fpu_post_test_math1': 20001122-1.c:37:22: warning: variable 'p' set but not used [-Wunused-but-set-variable] Signed-off-by: Stefan Roese <>
* post: use ARRAY_SIZEMike Frysinger2011-07-2617-38/+20
| | | | | | | We've got a handy dandy macro already for calculating the number of elements in an array, so use it. Signed-off-by: Mike Frysinger <>
* powerpc: Fix FPU post related link warningsKumar Gala2011-01-258-16/+16
| | | | | | | | | | | | | | | | | | | | | | If we built POST on PPC's that didn't enable CONFIG_SYS_POST_FPU we'd get the following warning with newer toolchains: powerpc-linux-gnu-ld: Warning: lib_powerpc/fpu/libpostpowerpcfpu.o uses hard float, libpost.o uses soft float We actually worked around this sometime ago with the following commit: commit ce82ff05388b5ddafdf6082ef0776cce72c40b1c Author: Yuri Tikhonov <> Date: Sat Dec 20 14:54:21 2008 +0300 FPU POST: fix warnings when building with 2.18 binutils However, this only took into effect if CONFIG_SYS_POST_FPU was enabled. We can simply move the GNU_FPOST_ATTR out of the CONFIG_SYS_POST_FPU ifdef block to address the issue. Signed-off-by: Kumar Gala <>
* Switch from archive libraries to partial linkingSebastien Carlier2010-11-172-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 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 <>
* Move arch/ppc to arch/powerpcStefan Roese2010-04-2132-0/+4844
As discussed on the list, move "arch/ppc" to "arch/powerpc" to better match the Linux directory structure. Please note that this patch also changes the "ppc" target in MAKEALL to "powerpc" to match this new infrastructure. But "ppc" is kept as an alias for now, to not break compatibility with scripts using this name. Signed-off-by: Stefan Roese <> Acked-by: Wolfgang Denk <> Acked-by: Detlev Zundel <> Acked-by: Kim Phillips <> Cc: Peter Tyser <> Cc: Anatolij Gustschin <>
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