| 1 | Submitted By: Andrew Bradford <bradfa@gmail.com> |
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| 2 | Date: 2011-04-05 |
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| 3 | Initial Package Version: 4.6.0 |
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| 4 | Upstream Status: From Buildroot Team |
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| 5 | Origin: http://git.buildroot.net/buildroot/tree/toolchain/gcc/4.5.2/810-arm-softfloat-libgcc.patch |
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| 6 | Description: This patch configures GCC to produce the required asm functions |
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| 7 | to enable soft floating point operation in libgcc for ARM systems |
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| 8 | using uClibc. GCC will use the file gcc/config/arm/ieee754-df.S |
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| 9 | where these routines are stored. This doesn't happen by default, |
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| 10 | thus requiring this patch. |
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| 11 | |
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| 12 | Modified from the Buildroot team's original as it wouldn't apply |
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| 13 | cleanly to GCC-4.6.0. Content is the same but with different |
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| 14 | offsets. |
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| 15 | |
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| 16 | diff -Naur gcc-4.6.0.orig/gcc/config/arm/linux-elf.h gcc-4.6.0/gcc/config/arm/li |
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| 17 | nux-elf.h |
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| 18 | --- gcc-4.6.0.orig/gcc/config/arm/linux-elf.h 2011-04-05 05:58:33.000000000 -0 |
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| 19 | 400 |
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| 20 | +++ gcc-4.6.0/gcc/config/arm/linux-elf.h 2011-04-05 05:59:28.000000000 -0 |
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| 21 | 400 |
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| 22 | @@ -60,7 +60,7 @@ |
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| 23 | %{shared:-lc} \ |
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| 24 | %{!shared:%{profile:-lc_p}%{!profile:-lc}}" |
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| 25 | |
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| 26 | -#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc" |
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| 27 | +#define LIBGCC_SPEC "-lgcc" |
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| 28 | |
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| 29 | #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2" |
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| 30 | |
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| 31 | diff -Naur gcc-4.6.0.orig/gcc/config/arm/t-linux gcc-4.6.0/gcc/config/arm/t-linux |
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| 32 | --- gcc-4.6.0.orig/gcc/config/arm/t-linux 2011-04-05 05:58:33.000000000 -0400 |
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| 33 | +++ gcc-4.6.0/gcc/config/arm/t-linux 2011-04-05 06:03:12.000000000 -0400 |
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| 34 | @@ -23,7 +23,11 @@ |
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| 35 | |
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| 36 | LIB1ASMSRC = arm/lib1funcs.asm |
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| 37 | LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \ |
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| 38 | - _arm_addsubdf3 _arm_addsubsf3 |
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| 39 | + _arm_addsubdf3 _arm_addsubsf3 \ |
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| 40 | + _arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \ |
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| 41 | + _arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \ |
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| 42 | + _arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \ |
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| 43 | + _arm_fixsfsi _arm_fixunssfsi |
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| 44 | |
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| 45 | # MULTILIB_OPTIONS = mhard-float/msoft-float |
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| 46 | # MULTILIB_DIRNAMES = hard-float soft-float |
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