patches/gcc/4.4.0/390-arm-softfloat-libgcc.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:43:07 2011 +0200 (2011-07-17)
changeset 2893 a8a65758664f
permissions -rw-r--r--
cc/gcc: do not use the core pass-2 to build the baremetal compiler

In case we build a baremetal compiler, use the standard passes:
- core_cc is used to build the C library;
- as such, it is meant to run on build, not host;
- the final compiler is meant to run on host;

As the current final compiler step can not build a baremetal compiler,
call the core backend from the final step.

NB: Currently, newlib is built during the start_files pass, so we have
to have a core compiler by then... Once we can build the baremetal
compiler from the final cc step, then we can move the newlib build to
the proper step, and then get rid of the core pass-1 static compiler...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
bryanhundven@2201
     1
[PATCH] add the correct symbols to libgcc for uclibc arm softfloat
bryanhundven@2201
     2
bryanhundven@2201
     3
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
bryanhundven@2201
     4
---
bryanhundven@2201
     5
 gcc/config/arm/linux-elf.h |    2 +-
bryanhundven@2201
     6
 gcc/config/arm/t-linux     |    6 +++++-
bryanhundven@2201
     7
 2 files changed, 6 insertions(+), 2 deletions(-)
bryanhundven@2201
     8
bryanhundven@2201
     9
Index: gcc-4.4.0/gcc/config/arm/t-linux
bryanhundven@2201
    10
===================================================================
bryanhundven@2201
    11
--- gcc-4.4.0.orig/gcc/config/arm/t-linux
bryanhundven@2201
    12
+++ gcc-4.4.0/gcc/config/arm/t-linux
bryanhundven@2201
    13
@@ -4,7 +4,11 @@
bryanhundven@2201
    14
 
bryanhundven@2201
    15
 LIB1ASMSRC = arm/lib1funcs.asm
bryanhundven@2201
    16
 LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
bryanhundven@2201
    17
-	_arm_addsubdf3 _arm_addsubsf3
bryanhundven@2201
    18
+	_arm_addsubdf3 _arm_addsubsf3 \
bryanhundven@2201
    19
+	_arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
bryanhundven@2201
    20
+	_arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
bryanhundven@2201
    21
+	_arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
bryanhundven@2201
    22
+	_arm_fixsfsi _arm_fixunssfsi
bryanhundven@2201
    23
 
bryanhundven@2201
    24
 # MULTILIB_OPTIONS = mhard-float/msoft-float
bryanhundven@2201
    25
 # MULTILIB_DIRNAMES = hard-float soft-float
bryanhundven@2201
    26
Index: gcc-4.4.0/gcc/config/arm/linux-elf.h
bryanhundven@2201
    27
===================================================================
bryanhundven@2201
    28
--- gcc-4.4.0.orig/gcc/config/arm/linux-elf.h
bryanhundven@2201
    29
+++ gcc-4.4.0/gcc/config/arm/linux-elf.h
bryanhundven@2201
    30
@@ -60,7 +60,7 @@
bryanhundven@2201
    31
    %{shared:-lc} \
bryanhundven@2201
    32
    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
bryanhundven@2201
    33
 
bryanhundven@2201
    34
-#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
bryanhundven@2201
    35
+#define LIBGCC_SPEC "-lgcc"
bryanhundven@2201
    36
 
bryanhundven@2201
    37
 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
bryanhundven@2201
    38