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authorManuel Novoa III <mjn3@codepoet.org>2003-11-01 05:34:41 +0000
committerManuel Novoa III <mjn3@codepoet.org>2003-11-01 05:34:41 +0000
commitd632d42b34888f169a9394f2c5ce64ccca75a5cb (patch)
tree34a6836f3c2c2623dbee1731f96498d17476f5dd /sources/i386-gcc-soft-float.patch
parentb5f7712c837fd770bed24b1a904715b5fd057b78 (diff)
downloadbuildroot-novena-d632d42b34888f169a9394f2c5ce64ccca75a5cb.tar.gz
buildroot-novena-d632d42b34888f169a9394f2c5ce64ccca75a5cb.zip
Enable building soft float buildroot for gcc 3.3. Currently works for
i386 (limited to 64 bit long double... same as double), arm (libfloat), mips, and mipsel. Enable cross compiling a native gcc 3.3 toolchain to run on the target. Misc rootfs cleanups... strip some things that weren't, eliminate duplicate libs, move openssl shared libs out of /lib, reduce size of libssl.so by dynamicly linking with libcrypto.so, fix dropbear compile on mips.
Diffstat (limited to 'sources/i386-gcc-soft-float.patch')
-rw-r--r--sources/i386-gcc-soft-float.patch61
1 files changed, 61 insertions, 0 deletions
diff --git a/sources/i386-gcc-soft-float.patch b/sources/i386-gcc-soft-float.patch
new file mode 100644
index 000000000..805d9bf3e
--- /dev/null
+++ b/sources/i386-gcc-soft-float.patch
@@ -0,0 +1,61 @@
+diff -urN gcc-3.3.2-orig/gcc/config/i386/i386.h gcc-3.3.2/gcc/config/i386/i386.h
+--- gcc-3.3.2-orig/gcc/config/i386/i386.h 2003-06-25 16:18:31.000000000 -0500
++++ gcc-3.3.2/gcc/config/i386/i386.h 2003-10-22 01:46:57.000000000 -0500
+@@ -653,6 +653,7 @@
+ /* Define for XFmode or TFmode extended real floating point support.
+ The XFmode is specified by i386 ABI, while TFmode may be faster
+ due to alignment and simplifications in the address calculations. */
++#if 0
+ #define LONG_DOUBLE_TYPE_SIZE (TARGET_128BIT_LONG_DOUBLE ? 128 : 96)
+ #define MAX_LONG_DOUBLE_TYPE_SIZE 128
+ #ifdef __x86_64__
+@@ -660,6 +661,17 @@
+ #else
+ #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 96
+ #endif
++#else
++ /* Set up for x86 soft float with 64-bit long doubles, since that's
++ * all the soft float emulation supports. */
++#define LONG_DOUBLE_TYPE_SIZE (TARGET_128BIT_LONG_DOUBLE ? 128 : (TARGET_80387 ? 96 : 64))
++#define MAX_LONG_DOUBLE_TYPE_SIZE 128
++#ifdef __x86_64__
++#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
++#else
++#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE (TARGET_80387 ? 96 : 64)
++#endif
++#endif
+
+ /* Set the value of FLT_EVAL_METHOD in float.h. When using only the
+ FPU, assume that the fpcw is set to extended precision; when using
+diff -urN gcc-3.3.2-orig/gcc/config/t-linux gcc-3.3.2/gcc/config/t-linux
+--- gcc-3.3.2-orig/gcc/config/t-linux 2003-06-04 11:56:11.000000000 -0500
++++ gcc-3.3.2/gcc/config/t-linux 2003-10-22 01:46:39.000000000 -0500
+@@ -14,3 +14,28 @@
+ LIB2ADDEH = $(srcdir)/unwind-dw2.c $(srcdir)/unwind-dw2-fde-glibc.c \
+ $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
+ LIB2ADDEHDEP = unwind.inc unwind-dw2-fde.h unwind-dw2-fde.c
++
++##############################################
++# We want fine grained libraries, so use the new code to build the
++# floating point emulation libraries.
++FPBIT = fp-bit.c
++DPBIT = dp-bit.c
++
++#LIB2FUNCS_EXTRA = xp-bit.c
++
++dp-bit.c: $(srcdir)/config/fp-bit.c
++ echo '#ifdef __LITTLE_ENDIAN__' > dp-bit.c
++ echo '#define FLOAT_BIT_ORDER_MISMATCH' >>dp-bit.c
++ echo '#endif' >> dp-bit.c
++ cat $(srcdir)/config/fp-bit.c >> dp-bit.c
++
++fp-bit.c: $(srcdir)/config/fp-bit.c
++ echo '#define FLOAT' > fp-bit.c
++ echo '#ifdef __LITTLE_ENDIAN__' >> fp-bit.c
++ echo '#define FLOAT_BIT_ORDER_MISMATCH' >>fp-bit.c
++ echo '#endif' >> fp-bit.c
++ cat $(srcdir)/config/fp-bit.c >> fp-bit.c
++
++#MULTILIB_OPTIONS = msoft-float
++#MULTILIB_DIRNAMES = soft-float
++