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yann@136
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This patch (C) 2007 Yann E. MORIN
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Licensed under GPL v2.
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yann@262
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First hunk of this patch solves compiling uClibc:
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make[1]: Entering directory `/home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/build-libc'
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LD libuClibc-0.9.29.so
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libc/libc_so.a(difftime.os): In function `difftime':
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difftime.c:(.text+0x8): undefined reference to `__floatsidf'
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difftime.c:(.text+0x2c): undefined reference to `__subdf3'
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libc/libc_so.a(_fpmaxtostr.os): In function `_fpmaxtostr':
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_fpmaxtostr.c:(.text+0xd4): undefined reference to `__nedf2'
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_fpmaxtostr.c:(.text+0xf8): undefined reference to `__eqdf2'
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_fpmaxtostr.c:(.text+0x114): undefined reference to `__divdf3'
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_fpmaxtostr.c:(.text+0x120): undefined reference to `__ltdf2'
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_fpmaxtostr.c:(.text+0x1c4): undefined reference to `__muldf3'
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_fpmaxtostr.c:(.text+0x388): undefined reference to `__gedf2'
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_fpmaxtostr.c:(.text+0x430): undefined reference to `__adddf3'
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libc/libc_so.a(__psfs_do_numeric.os): In function `__psfs_do_numeric':
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__psfs_do_numeric.c:(.text+0x520): undefined reference to `__truncdfsf2'
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libc/libc_so.a(strtof.os): In function `strtof':
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strtof.c:(.text+0x1c): undefined reference to `__extendsfdf2'
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/home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/cc_core_prefix/lib/gcc/arm-linux-uclibc/4.1.1/libgcc.a(_fixunsdfsi.o):
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In function `__fixunsdfsi':
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libgcc2.c:(.text+0x34): undefined reference to `__fixdfsi'
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make[2]: *** [lib/libc.so] Error 1
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make[1]: *** [lib/libc.so.0] Error 2
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make[1]: Leaving directory `/home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/build-libc'
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make: *** [/home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/build-libc/lib/libc.a]
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Error 2
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The second hunk fixes building final gcc because soft-float implies using -lfloat (which we don't have).
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diff -dur gcc-4.2.0.orig/gcc/config.gcc gcc-4.2.0/gcc/config.gcc
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--- gcc-4.2.0.orig/gcc/config.gcc 2007-07-15 11:24:18.000000000 +0200
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+++ gcc-4.2.0/gcc/config.gcc 2007-07-15 11:26:02.000000000 +0200
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@@ -721,7 +721,7 @@
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default_use_cxa_atexit=yes
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;;
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*)
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- tmake_file="$tmake_file arm/t-linux"
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+ tmake_file="$tmake_file arm/t-linux arm/t-arm-elf"
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;;
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esac
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tm_file="$tm_file arm/aout.h arm/arm.h"
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diff -dur gcc-4.2.0.orig/gcc/config/arm/linux-elf.h gcc-4.2.0/gcc/config/arm/linux-elf.h
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--- gcc-4.2.0.orig/gcc/config/arm/linux-elf.h 2007-07-15 11:24:18.000000000 +0200
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+++ gcc-4.2.0/gcc/config/arm/linux-elf.h 2007-07-15 11:26:02.000000000 +0200
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@@ -63,7 +63,7 @@
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%{shared:-lc} \
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%{!shared:%{profile:-lc_p}%{!profile:-lc}}"
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-#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
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+#define LIBGCC_SPEC "-lgcc"
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#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
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