patches/gcc/4.2.0/250-softfloat-fix.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Tue Jul 31 22:27:29 2012 +0200 (2012-07-31)
changeset 3018 7776e8369284
parent 262 30b65aecf7fb
permissions -rw-r--r--
complibs/cloog: create missing m4 dir

Because we now patch configure.in and configure, the Makefile quicks
in a re-build rule as the source files are now more recent than the
bundled generated files, and that fails because the m4 directory
is missing, although on some systems where aclocal is not installed,
the re-build rule does nothing (except a warning).

Always create tht directory.

Reported-by: Per Arnold Blaasmo <per-arnold.blaasmo@atmel.com>
[Also thanks to Thomas De Schampheleire <patrickdepinguin@gmail.com>
for some digging works on this issue]
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