patches/gcc/4.2.1/250-softfloat-fix.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Thu Dec 27 12:45:22 2012 +0100 (2012-12-27)
changeset 3152 b286c7993be5
parent 313 2f223aafc7cb
permissions -rw-r--r--
scripts/addToolsVersion: properly handle .in vs. .in.2

While most components have their version in the .in file, some
have it in the .in.2 (eg. elf2flt).

Currently, to handle this case, we indiscriminately munge both files,
but this is wrong: in the elf2flt case, if we add a binutils version,
we do not want it to be added to elf2flt, and conversely.

So, for each tool, we need to explicitly know what file to munge.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
     1 This patch (C) 2007 Yann E. MORIN
     2 Licensed under GPL v2.
     3 
     4 First hunk of this patch solves compiling uClibc:
     5 
     6 make[1]: Entering directory `/home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/build-libc'
     7   LD libuClibc-0.9.29.so
     8 libc/libc_so.a(difftime.os): In function `difftime':
     9 difftime.c:(.text+0x8): undefined reference to `__floatsidf'
    10 difftime.c:(.text+0x2c): undefined reference to `__subdf3'
    11 libc/libc_so.a(_fpmaxtostr.os): In function `_fpmaxtostr':
    12 _fpmaxtostr.c:(.text+0xd4): undefined reference to `__nedf2'
    13 _fpmaxtostr.c:(.text+0xf8): undefined reference to `__eqdf2'
    14 _fpmaxtostr.c:(.text+0x114): undefined reference to `__divdf3'
    15 _fpmaxtostr.c:(.text+0x120): undefined reference to `__ltdf2'
    16 _fpmaxtostr.c:(.text+0x1c4): undefined reference to `__muldf3'
    17 _fpmaxtostr.c:(.text+0x388): undefined reference to `__gedf2'
    18 _fpmaxtostr.c:(.text+0x430): undefined reference to `__adddf3'
    19 libc/libc_so.a(__psfs_do_numeric.os): In function `__psfs_do_numeric':
    20 __psfs_do_numeric.c:(.text+0x520): undefined reference to `__truncdfsf2'
    21 libc/libc_so.a(strtof.os): In function `strtof':
    22 strtof.c:(.text+0x1c): undefined reference to `__extendsfdf2'
    23 /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):
    24 In function `__fixunsdfsi':
    25 libgcc2.c:(.text+0x34): undefined reference to `__fixdfsi'
    26 make[2]: *** [lib/libc.so] Error 1
    27 make[1]: *** [lib/libc.so.0] Error 2
    28 make[1]: Leaving directory `/home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/build-libc'
    29 make: *** [/home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/build-libc/lib/libc.a]
    30 Error 2
    31 
    32 The second hunk fixes building final gcc because soft-float implies using -lfloat (which we don't have).
    33 
    34 
    35 diff -dur gcc-4.2.0.orig/gcc/config.gcc gcc-4.2.0/gcc/config.gcc
    36 --- gcc-4.2.0.orig/gcc/config.gcc	2007-07-15 11:24:18.000000000 +0200
    37 +++ gcc-4.2.0/gcc/config.gcc	2007-07-15 11:26:02.000000000 +0200
    38 @@ -721,7 +721,7 @@
    39  	    default_use_cxa_atexit=yes
    40  	    ;;
    41  	*)
    42 -	    tmake_file="$tmake_file arm/t-linux"
    43 +	    tmake_file="$tmake_file arm/t-linux arm/t-arm-elf"
    44  	    ;;
    45  	esac
    46  	tm_file="$tm_file arm/aout.h arm/arm.h"
    47 diff -dur gcc-4.2.0.orig/gcc/config/arm/linux-elf.h gcc-4.2.0/gcc/config/arm/linux-elf.h
    48 --- gcc-4.2.0.orig/gcc/config/arm/linux-elf.h	2007-07-15 11:24:18.000000000 +0200
    49 +++ gcc-4.2.0/gcc/config/arm/linux-elf.h	2007-07-15 11:26:02.000000000 +0200
    50 @@ -63,7 +63,7 @@
    51     %{shared:-lc} \
    52     %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
    53  
    54 -#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
    55 +#define LIBGCC_SPEC "-lgcc"
    56  
    57  #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
    58