1 files changed, 156 insertions, 0 deletions

diff --git a/meta/packages/gcc/gcc-3.4.4/gcc34-thumb-support.patch b/meta/packages/gcc/gcc-3.4.4/gcc34-thumb-support.patch
new file mode 100644
index 0000000000..a4f156f8db
--- /dev/null
+++ b/meta/packages/gcc/gcc-3.4.4/gcc34-thumb-support.patch
@@ -0,0 +1,156 @@
+# This patch contains various fixes for the thumb code handling in GCC 3.4.4
+#
+# Most of these are minor fixes to code which is either missing (Linux thumb
+# div0, thumb clear instruction cache) or uses the wrong return mechanism
+# (libffi)
+#
+# There is also a significant design problem with the _call_via_rx code -
+# it cannot be in a shared library because a call via PLT simply won't
+# work (for _call_via_ip) and is very inefficient anyway.
+#
+# This is fixed in uclibc simply by incorporating the code into crti.S
+# (an extra 30 bytes for the 15 functions) even though not all link units
+# require all the code - there is so little of it.  That doesn't work with
+# the crti.asm here because it is linked with libgcc.a which already defines
+# these symbols
+#
+--- gcc-3.4.4/gcc/config/arm/t-linux.orig       2005-08-09 08:55:02.181797492 -0700
++++ gcc-3.4.4/gcc/config/arm/t-linux    2005-08-09 08:58:22.766419486 -0700
+@@ -7,6 +7,7 @@
+ LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx \
+        _negdf2 _addsubdf3 _muldivdf3 _cmpdf2 _unorddf2 _fixdfsi _fixunsdfsi \
+        _truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \
++       _call_via_rX \
+        _fixsfsi _fixunssfsi
+ 
+ # MULTILIB_OPTIONS = mhard-float/msoft-float
+--- gcc-3.4.4/.pc/gcc34-thumb-support.patch/gcc/config/arm/lib1funcs.asm        2004-01-15 08:56:34.000000000 -0800
++++ gcc-3.4.4/gcc/config/arm/lib1funcs.asm      2005-09-21 21:32:03.376927755 -0700
+@@ -811,13 +811,18 @@
+ 
+ /* Constants taken from <asm/unistd.h> and <asm/signal.h> */
+ #define SIGFPE 8
++#if !defined __thumb__
+ #define __NR_SYSCALL_BASE      0x900000
++#else
++#define __NR_SYSCALL_BASE      0
++#endif
+ #define __NR_getpid                    (__NR_SYSCALL_BASE+ 20)
+ #define __NR_kill                      (__NR_SYSCALL_BASE+ 37)
+ 
+        .code   32
+        FUNC_START div0
+ 
++#if ! defined __thumb__
+        stmfd   sp!, {r1, lr}
+        swi     __NR_getpid
+        cmn     r0, #1000
+@@ -825,6 +830,28 @@
+        mov     r1, #SIGFPE
+        swi     __NR_kill
+        RETLDM  r1
++#else
++       push    {r1, r7, lr}
++       mov     r7, #__NR_getpid
++       swi     0
++       @ above the compare is with -1000, but the standard syscall
++       @ macro checks for -1..-125
++       add     r0, #125
++       bcs     90f
++       sub     r0, #125
++       mov     r1, #SIGFPE
++       mov     r7, #__NR_kill
++       swi     0
++90:    
++#if __ARM_ARCH__ > 4
++       pop     {r1, r7, pc}
++#else
++       @ on 4T that won't work
++       pop     {r1, r7}
++       pop     {r3}
++       bx      r3
++#endif
++#endif
+ 
+        FUNC_END div0
+        
+@@ -845,14 +872,14 @@
+    code here switches to the correct mode before executing the function.  */
+        
+        .text
+-       .align 0
++       .align 1
+         .force_thumb
+ 
+ .macro call_via register
+        THUMB_FUNC_START _call_via_\register
++       .hidden SYM (_call_via_\register)
+ 
+        bx      \register
+-       nop
+ 
+        SIZE    (_call_via_\register)
+ .endm
+@@ -903,6 +930,7 @@
+        .code   16
+ 
+        THUMB_FUNC_START _interwork_call_via_\register
++       .hidden SYM (_interwork_call_via_\register)
+ 
+        bx      pc
+        nop
+--- gcc-3.4.4/.pc/gcc34-thumb-support.patch/gcc/config/arm/linux-gas.h  2003-06-19 14:47:06.000000000 -0700
++++ gcc-3.4.4/gcc/config/arm/linux-gas.h        2005-09-20 16:09:55.027862200 -0700
+@@ -56,6 +56,7 @@
+ 
+ /* Clear the instruction cache from `beg' to `end'.  This makes an
+    inline system call to SYS_cacheflush.  */
++#if !defined(__thumb__)
+ #define CLEAR_INSN_CACHE(BEG, END)                                     \
+ {                                                                      \
+   register unsigned long _beg __asm ("a1") = (unsigned long) (BEG);    \
+@@ -65,3 +66,18 @@
+                    : "=r" (_beg)                                       \
+                    : "0" (_beg), "r" (_end), "r" (_flg));              \
+ }
++#else
++#define CLEAR_INSN_CACHE(BEG, END)                                     \
++{                                                                      \
++  register unsigned long _beg __asm ("a1") = (unsigned long) (BEG);    \
++  register unsigned long _end __asm ("a2") = (unsigned long) (END);    \
++  register unsigned long _flg __asm ("a3") = 0;                                \
++  register unsigned long _swi __asm ("a4") = 0xf0002;                  \
++  __asm __volatile ("push      {r7}\n"                                 \
++               "       mov     r7,a4\n"                                \
++               "       swi     0       @ sys_cacheflush\n"             \
++               "       pop     {r7}\n"                                 \
++                   : "=r" (_beg)                                       \
++                   : "0" (_beg), "r" (_end), "r" (_flg), "r" (_swi));  \
++}
++#endif
+--- gcc-3.4.4/.pc/gcc34-thumb-support.patch/libffi/src/arm/sysv.S       2003-10-21 12:01:55.000000000 -0700
++++ gcc-3.4.4/libffi/src/arm/sysv.S     2005-09-20 16:09:55.027862200 -0700
+@@ -41,6 +41,14 @@
+ #define ENTRY(x) .globl CNAME(x); .type CNAME(x),%function; CNAME(x):
+ #endif
+        
++/* Get the correct return instruction */
++#if defined(__ARM_ARCH_4T__) || defined(__ARM_ARCH_5__) \
++       || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__)
++#define RET bx r
++#else
++#define RET mov pc,
++#endif
++
+ .text
+ 
+        # a1:   ffi_prep_args
+@@ -66,7 +74,7 @@
+ 
+        # And call
+        mov   lr, pc
+-       mov   pc, ip
++       RET   ip
+ 
+        # move first 4 parameters in registers
+        ldr   a1, [sp, #0]