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Starting with version 2.24.51.20140728 MIPS binutils complain loudly
about mixing soft-float and hard-float object files, leading to this
build failure since GCC is invoked with "-msoft-float" on MIPS:
{standard input}: Warning: .gnu_attribute 4,3 requires `softfloat'
LD arch/mips/alchemy/common/built-in.o
mipsel-softfloat-linux-gnu-ld: Warning: arch/mips/alchemy/common/built-in.o
uses -msoft-float (set by arch/mips/alchemy/common/prom.o),
arch/mips/alchemy/common/sleeper.o uses -mhard-float
To fix this, we detect if GAS is new enough to support "-msoft-float" command
option, and if it does, we can let GCC pass it to GAS; but then we also need
to sprinkle the files which make use of floating point registers with the
necessary ".set hardfloat" directives.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Matthew Fortune <Matthew.Fortune@imgtec.com>
Cc: Markos Chandras <Markos.Chandras@imgtec.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/8355/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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|---|---|---|
| .. | ||
| cp1emu.c | ||
| dp_add.c | ||
| dp_cmp.c | ||
| dp_div.c | ||
| dp_fint.c | ||
| dp_flong.c | ||
| dp_fsp.c | ||
| dp_mul.c | ||
| dp_simple.c | ||
| dp_sqrt.c | ||
| dp_sub.c | ||
| dp_tint.c | ||
| dp_tlong.c | ||
| dsemul.c | ||
| ieee754.c | ||
| ieee754.h | ||
| ieee754d.c | ||
| ieee754dp.c | ||
| ieee754dp.h | ||
| ieee754int.h | ||
| ieee754sp.c | ||
| ieee754sp.h | ||
| Makefile | ||
| me-debugfs.c | ||
| sp_add.c | ||
| sp_cmp.c | ||
| sp_div.c | ||
| sp_fdp.c | ||
| sp_fint.c | ||
| sp_flong.c | ||
| sp_mul.c | ||
| sp_simple.c | ||
| sp_sqrt.c | ||
| sp_sub.c | ||
| sp_tint.c | ||
| sp_tlong.c | ||