diff options
Diffstat (limited to 'meta/packages/gcc/gcc-3.4.4/gcc34-thumb-support.patch')
| -rw-r--r-- | meta/packages/gcc/gcc-3.4.4/gcc34-thumb-support.patch | 156 |
1 files changed, 0 insertions, 156 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 deleted file mode 100644 index a4f156f8d..000000000 --- a/meta/packages/gcc/gcc-3.4.4/gcc34-thumb-support.patch +++ /dev/null @@ -1,156 +0,0 @@ -# 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] |