summaryrefslogtreecommitdiffstats
path: root/meta/packages/gcc/gcc-3.4.6/gcc34-thumb-support.patch
diff options
context:
space:
mode:
Diffstat (limited to 'meta/packages/gcc/gcc-3.4.6/gcc34-thumb-support.patch')
-rw-r--r--meta/packages/gcc/gcc-3.4.6/gcc34-thumb-support.patch156
1 files changed, 0 insertions, 156 deletions
diff --git a/meta/packages/gcc/gcc-3.4.6/gcc34-thumb-support.patch b/meta/packages/gcc/gcc-3.4.6/gcc34-thumb-support.patch
deleted file mode 100644
index a4f156f8db..0000000000
--- a/meta/packages/gcc/gcc-3.4.6/gcc34-thumb-support.patch
+++ /dev/null
@@ -1,156 +0,0 @@
1# This patch contains various fixes for the thumb code handling in GCC 3.4.4
2#
3# Most of these are minor fixes to code which is either missing (Linux thumb
4# div0, thumb clear instruction cache) or uses the wrong return mechanism
5# (libffi)
6#
7# There is also a significant design problem with the _call_via_rx code -
8# it cannot be in a shared library because a call via PLT simply won't
9# work (for _call_via_ip) and is very inefficient anyway.
10#
11# This is fixed in uclibc simply by incorporating the code into crti.S
12# (an extra 30 bytes for the 15 functions) even though not all link units
13# require all the code - there is so little of it. That doesn't work with
14# the crti.asm here because it is linked with libgcc.a which already defines
15# these symbols
16#
17--- gcc-3.4.4/gcc/config/arm/t-linux.orig 2005-08-09 08:55:02.181797492 -0700
18+++ gcc-3.4.4/gcc/config/arm/t-linux 2005-08-09 08:58:22.766419486 -0700
19@@ -7,6 +7,7 @@
20 LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx \
21 _negdf2 _addsubdf3 _muldivdf3 _cmpdf2 _unorddf2 _fixdfsi _fixunsdfsi \
22 _truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \
23+ _call_via_rX \
24 _fixsfsi _fixunssfsi
25
26 # MULTILIB_OPTIONS = mhard-float/msoft-float
27--- gcc-3.4.4/.pc/gcc34-thumb-support.patch/gcc/config/arm/lib1funcs.asm 2004-01-15 08:56:34.000000000 -0800
28+++ gcc-3.4.4/gcc/config/arm/lib1funcs.asm 2005-09-21 21:32:03.376927755 -0700
29@@ -811,13 +811,18 @@
30
31 /* Constants taken from <asm/unistd.h> and <asm/signal.h> */
32 #define SIGFPE 8
33+#if !defined __thumb__
34 #define __NR_SYSCALL_BASE 0x900000
35+#else
36+#define __NR_SYSCALL_BASE 0
37+#endif
38 #define __NR_getpid (__NR_SYSCALL_BASE+ 20)
39 #define __NR_kill (__NR_SYSCALL_BASE+ 37)
40
41 .code 32
42 FUNC_START div0
43
44+#if ! defined __thumb__
45 stmfd sp!, {r1, lr}
46 swi __NR_getpid
47 cmn r0, #1000
48@@ -825,6 +830,28 @@
49 mov r1, #SIGFPE
50 swi __NR_kill
51 RETLDM r1
52+#else
53+ push {r1, r7, lr}
54+ mov r7, #__NR_getpid
55+ swi 0
56+ @ above the compare is with -1000, but the standard syscall
57+ @ macro checks for -1..-125
58+ add r0, #125
59+ bcs 90f
60+ sub r0, #125
61+ mov r1, #SIGFPE
62+ mov r7, #__NR_kill
63+ swi 0
64+90:
65+#if __ARM_ARCH__ > 4
66+ pop {r1, r7, pc}
67+#else
68+ @ on 4T that won't work
69+ pop {r1, r7}
70+ pop {r3}
71+ bx r3
72+#endif
73+#endif
74
75 FUNC_END div0
76
77@@ -845,14 +872,14 @@
78 code here switches to the correct mode before executing the function. */
79
80 .text
81- .align 0
82+ .align 1
83 .force_thumb
84
85 .macro call_via register
86 THUMB_FUNC_START _call_via_\register
87+ .hidden SYM (_call_via_\register)
88
89 bx \register
90- nop
91
92 SIZE (_call_via_\register)
93 .endm
94@@ -903,6 +930,7 @@
95 .code 16
96
97 THUMB_FUNC_START _interwork_call_via_\register
98+ .hidden SYM (_interwork_call_via_\register)
99
100 bx pc
101 nop
102--- gcc-3.4.4/.pc/gcc34-thumb-support.patch/gcc/config/arm/linux-gas.h 2003-06-19 14:47:06.000000000 -0700
103+++ gcc-3.4.4/gcc/config/arm/linux-gas.h 2005-09-20 16:09:55.027862200 -0700
104@@ -56,6 +56,7 @@
105
106 /* Clear the instruction cache from `beg' to `end'. This makes an
107 inline system call to SYS_cacheflush. */
108+#if !defined(__thumb__)
109 #define CLEAR_INSN_CACHE(BEG, END) \
110 { \
111 register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \
112@@ -65,3 +66,18 @@
113 : "=r" (_beg) \
114 : "0" (_beg), "r" (_end), "r" (_flg)); \
115 }
116+#else
117+#define CLEAR_INSN_CACHE(BEG, END) \
118+{ \
119+ register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \
120+ register unsigned long _end __asm ("a2") = (unsigned long) (END); \
121+ register unsigned long _flg __asm ("a3") = 0; \
122+ register unsigned long _swi __asm ("a4") = 0xf0002; \
123+ __asm __volatile ("push {r7}\n" \
124+ " mov r7,a4\n" \
125+ " swi 0 @ sys_cacheflush\n" \
126+ " pop {r7}\n" \
127+ : "=r" (_beg) \
128+ : "0" (_beg), "r" (_end), "r" (_flg), "r" (_swi)); \
129+}
130+#endif
131--- gcc-3.4.4/.pc/gcc34-thumb-support.patch/libffi/src/arm/sysv.S 2003-10-21 12:01:55.000000000 -0700
132+++ gcc-3.4.4/libffi/src/arm/sysv.S 2005-09-20 16:09:55.027862200 -0700
133@@ -41,6 +41,14 @@
134 #define ENTRY(x) .globl CNAME(x); .type CNAME(x),%function; CNAME(x):
135 #endif
136
137+/* Get the correct return instruction */
138+#if defined(__ARM_ARCH_4T__) || defined(__ARM_ARCH_5__) \
139+ || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__)
140+#define RET bx r
141+#else
142+#define RET mov pc,
143+#endif
144+
145 .text
146
147 # a1: ffi_prep_args
148@@ -66,7 +74,7 @@
149
150 # And call
151 mov lr, pc
152- mov pc, ip
153+ RET ip
154
155 # move first 4 parameters in registers
156 ldr a1, [sp, #0]