crosstool-ng/patches/gcc/4.2.2/801-softfloat-fix.patch
Yann E. MORIN" 8f48d45018 Robert P. J. DAY says:
apparently, the patchset for gcc 4.2.1 applies properly to the
source for gcc 4.2.2 and gcc 4.2.3.  so, if you want, you can simply
add support for those last two just by augmenting menuconfig and
adding a couple symlinks for those two directories.  seems like a
cheap way to add a couple new versions.
2008-02-17 22:08:06 +00:00

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2.7 KiB
Diff

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