patches/gcc/4.1.1/200-softfloat-fix.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Thu Oct 09 19:17:49 2008 +0000 (2008-10-09)
changeset 914 0b164a321177
parent 1 eeea35fbf182
permissions -rw-r--r--
Remove CT_BROKEN.
Only one component is actually BROKEN (libelf), make it depend on EXPERIMENTAL, but state BROKEN in the prompt.
ltrace (which depends on libelf) is now marked as EXPERIMENTAL, with the reference to the BROKEN libelf in the help entry.

/trunk/docs/overview.txt | 6 0 6 0 ------
/trunk/config/debug/ltrace.in | 7 4 3 0 ++++---
/trunk/config/global/ct-behave.in | 8 0 8 0 --------
/trunk/config/tools/libelf.in | 5 3 2 0 +++--
4 files changed, 7 insertions(+), 19 deletions(-)
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This patch (C) 2007 Yann E. MORIN
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Licensed under GPL v2.
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First hunk of this patch solves compiling uClibc-0.9.28{,.1} :
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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-4.1.1.no-softfloat-fix/gcc/config.gcc gcc-4.1.1/gcc/config.gcc
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--- gcc-4.1.1.no-softfloat-fix/gcc/config.gcc	2007-02-01 21:57:17.000000000 +0100
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+++ gcc-4.1.1/gcc/config.gcc	2007-02-01 22:11:06.000000000 +0100
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@@ -690,7 +690,7 @@
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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-4.1.1.-lfloat/gcc/config/arm/linux-elf.h gcc-4.1.1/gcc/config/arm/linux-elf.h
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--- gcc-4.1.1.-lfloat/gcc/config/arm/linux-elf.h	2007-02-01 21:57:17.000000000 +0100
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+++ gcc-4.1.1/gcc/config/arm/linux-elf.h	2007-02-01 23:00:42.000000000 +0100
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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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 #ifdef USE_UCLIBC
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 #define LINUX_TARGET_INTERPRETER "/lib/ld-uClibc.so.0"