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-rw-r--r--meta/recipes-graphics/xorg-xserver/xserver-xf86-lite/revert_make_sys_c_use_unaligned_access_functions.patch256
1 files changed, 256 insertions, 0 deletions
diff --git a/meta/recipes-graphics/xorg-xserver/xserver-xf86-lite/revert_make_sys_c_use_unaligned_access_functions.patch b/meta/recipes-graphics/xorg-xserver/xserver-xf86-lite/revert_make_sys_c_use_unaligned_access_functions.patch
new file mode 100644
index 0000000000..235b55153a
--- /dev/null
+++ b/meta/recipes-graphics/xorg-xserver/xserver-xf86-lite/revert_make_sys_c_use_unaligned_access_functions.patch
@@ -0,0 +1,256 @@
1From 74ab27f64a747ee45810f99cdc6e29b82cf8035e Mon Sep 17 00:00:00 2001
2From: Tiago Vignatti <tiago.vignatti@nokia.com>
3Date: Mon, 28 Dec 2009 16:00:28 +0000
4Subject: Revert "Make sys.c use unaligned access functions provided in compiler."
5
6This reverts commit da923d0bc15e99a8ed1986bd6f5df37f7af7284b.
7
8Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
9Signed-off-by: Keith Packard <keithp@keithp.com>
10---
11diff --git a/hw/xfree86/x86emu/Makefile.am b/hw/xfree86/x86emu/Makefile.am
12index e7368f5..df96977 100644
13--- a/hw/xfree86/x86emu/Makefile.am
14+++ b/hw/xfree86/x86emu/Makefile.am
15@@ -11,7 +11,7 @@ libx86emu_la_SOURCES = debug.c \
16 sys.c \
17 x86emu.h
18
19-INCLUDES = $(XORG_INCS)
20+INCLUDES =
21
22 AM_CFLAGS = $(DIX_CFLAGS) $(XORG_CFLAGS)
23
24diff --git a/hw/xfree86/x86emu/sys.c b/hw/xfree86/x86emu/sys.c
25index 2ebf6f1..e15fb09 100644
26--- a/hw/xfree86/x86emu/sys.c
27+++ b/hw/xfree86/x86emu/sys.c
28@@ -48,13 +48,168 @@
29 #ifndef NO_SYS_HEADERS
30 #include <string.h>
31 #endif
32-#include "compiler.h" /* for unaligned access functions */
33 /*------------------------- Global Variables ------------------------------*/
34
35 X86EMU_sysEnv _X86EMU_env; /* Global emulator machine state */
36 X86EMU_intrFuncs _X86EMU_intrTab[256];
37
38 /*----------------------------- Implementation ----------------------------*/
39+#if defined(__alpha__) || defined(__alpha)
40+/* to cope with broken egcs-1.1.2 :-(((( */
41+
42+#define ALPHA_UALOADS
43+/*
44+ * inline functions to do unaligned accesses
45+ * from linux/include/asm-alpha/unaligned.h
46+ */
47+
48+/*
49+ * EGCS 1.1 knows about arbitrary unaligned loads. Define some
50+ * packed structures to talk about such things with.
51+ */
52+
53+#if defined(__GNUC__)
54+struct __una_u64 { unsigned long x __attribute__((packed)); };
55+struct __una_u32 { unsigned int x __attribute__((packed)); };
56+struct __una_u16 { unsigned short x __attribute__((packed)); };
57+#endif
58+
59+static __inline__ unsigned long ldq_u(unsigned long * r11)
60+{
61+#if defined(__GNUC__)
62+ const struct __una_u64 *ptr = (const struct __una_u64 *) r11;
63+ return ptr->x;
64+#else
65+ unsigned long r1,r2;
66+ __asm__("ldq_u %0,%3\n\t"
67+ "ldq_u %1,%4\n\t"
68+ "extql %0,%2,%0\n\t"
69+ "extqh %1,%2,%1"
70+ :"=&r" (r1), "=&r" (r2)
71+ :"r" (r11),
72+ "m" (*r11),
73+ "m" (*(const unsigned long *)(7+(char *) r11)));
74+ return r1 | r2;
75+#endif
76+}
77+
78+static __inline__ unsigned long ldl_u(unsigned int * r11)
79+{
80+#if defined(__GNUC__)
81+ const struct __una_u32 *ptr = (const struct __una_u32 *) r11;
82+ return ptr->x;
83+#else
84+ unsigned long r1,r2;
85+ __asm__("ldq_u %0,%3\n\t"
86+ "ldq_u %1,%4\n\t"
87+ "extll %0,%2,%0\n\t"
88+ "extlh %1,%2,%1"
89+ :"=&r" (r1), "=&r" (r2)
90+ :"r" (r11),
91+ "m" (*r11),
92+ "m" (*(const unsigned long *)(3+(char *) r11)));
93+ return r1 | r2;
94+#endif
95+}
96+
97+static __inline__ unsigned long ldw_u(unsigned short * r11)
98+{
99+#if defined(__GNUC__)
100+ const struct __una_u16 *ptr = (const struct __una_u16 *) r11;
101+ return ptr->x;
102+#else
103+ unsigned long r1,r2;
104+ __asm__("ldq_u %0,%3\n\t"
105+ "ldq_u %1,%4\n\t"
106+ "extwl %0,%2,%0\n\t"
107+ "extwh %1,%2,%1"
108+ :"=&r" (r1), "=&r" (r2)
109+ :"r" (r11),
110+ "m" (*r11),
111+ "m" (*(const unsigned long *)(1+(char *) r11)));
112+ return r1 | r2;
113+#endif
114+}
115+
116+/*
117+ * Elemental unaligned stores
118+ */
119+
120+static __inline__ void stq_u(unsigned long r5, unsigned long * r11)
121+{
122+#if defined(__GNUC__)
123+ struct __una_u64 *ptr = (struct __una_u64 *) r11;
124+ ptr->x = r5;
125+#else
126+ unsigned long r1,r2,r3,r4;
127+
128+ __asm__("ldq_u %3,%1\n\t"
129+ "ldq_u %2,%0\n\t"
130+ "insqh %6,%7,%5\n\t"
131+ "insql %6,%7,%4\n\t"
132+ "mskqh %3,%7,%3\n\t"
133+ "mskql %2,%7,%2\n\t"
134+ "bis %3,%5,%3\n\t"
135+ "bis %2,%4,%2\n\t"
136+ "stq_u %3,%1\n\t"
137+ "stq_u %2,%0"
138+ :"=m" (*r11),
139+ "=m" (*(unsigned long *)(7+(char *) r11)),
140+ "=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4)
141+ :"r" (r5), "r" (r11));
142+#endif
143+}
144+
145+static __inline__ void stl_u(unsigned long r5, unsigned int * r11)
146+{
147+#if defined(__GNUC__)
148+ struct __una_u32 *ptr = (struct __una_u32 *) r11;
149+ ptr->x = r5;
150+#else
151+ unsigned long r1,r2,r3,r4;
152+
153+ __asm__("ldq_u %3,%1\n\t"
154+ "ldq_u %2,%0\n\t"
155+ "inslh %6,%7,%5\n\t"
156+ "insll %6,%7,%4\n\t"
157+ "msklh %3,%7,%3\n\t"
158+ "mskll %2,%7,%2\n\t"
159+ "bis %3,%5,%3\n\t"
160+ "bis %2,%4,%2\n\t"
161+ "stq_u %3,%1\n\t"
162+ "stq_u %2,%0"
163+ :"=m" (*r11),
164+ "=m" (*(unsigned long *)(3+(char *) r11)),
165+ "=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4)
166+ :"r" (r5), "r" (r11));
167+#endif
168+}
169+
170+static __inline__ void stw_u(unsigned long r5, unsigned short * r11)
171+{
172+#if defined(__GNUC__)
173+ struct __una_u16 *ptr = (struct __una_u16 *) r11;
174+ ptr->x = r5;
175+#else
176+ unsigned long r1,r2,r3,r4;
177+
178+ __asm__("ldq_u %3,%1\n\t"
179+ "ldq_u %2,%0\n\t"
180+ "inswh %6,%7,%5\n\t"
181+ "inswl %6,%7,%4\n\t"
182+ "mskwh %3,%7,%3\n\t"
183+ "mskwl %2,%7,%2\n\t"
184+ "bis %3,%5,%3\n\t"
185+ "bis %2,%4,%2\n\t"
186+ "stq_u %3,%1\n\t"
187+ "stq_u %2,%0"
188+ :"=m" (*r11),
189+ "=m" (*(unsigned long *)(1+(char *) r11)),
190+ "=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4)
191+ :"r" (r5), "r" (r11));
192+#endif
193+}
194+#endif
195
196 /****************************************************************************
197 PARAMETERS:
198@@ -107,7 +262,13 @@ u16 X86API rdw(
199 }
200 else
201 #endif
202+#if defined(ALPHA_UALOADS)
203 val = ldw_u((u16*)(M.mem_base + addr));
204+#elif defined(IA64_UALOADS)
205+ val = uldw((u16*)(M.mem_base + addr));
206+#else
207+ val = *(u16*)(M.mem_base + addr);
208+#endif
209 DB( if (DEBUG_MEM_TRACE())
210 printk("%#08x 2 -> %#x\n", addr, val);)
211 return val;
212@@ -140,7 +301,13 @@ u32 X86API rdl(
213 }
214 else
215 #endif
216+#if defined(ALPHA_UALOADS)
217 val = ldl_u((u32*)(M.mem_base + addr));
218+#elif defined(IA64_UALOADS)
219+ val = uldl((u32*)(M.mem_base + addr));
220+#else
221+ val = *(u32*)(M.mem_base + addr);
222+#endif
223 DB( if (DEBUG_MEM_TRACE())
224 printk("%#08x 4 -> %#x\n", addr, val);)
225 return val;
226@@ -192,7 +359,13 @@ DB( if (DEBUG_MEM_TRACE())
227 }
228 else
229 #endif
230+#if defined(ALPHA_UALOADS)
231 stw_u(val,(u16*)(M.mem_base + addr));
232+#elif defined(IA64_UALOADS)
233+ ustw(val,(u16*)(M.mem_base + addr));
234+#else
235+ *(u16*)(M.mem_base + addr) = val;
236+#endif
237 }
238
239 /****************************************************************************
240@@ -222,7 +395,13 @@ DB( if (DEBUG_MEM_TRACE())
241 }
242 else
243 #endif
244+#if defined(ALPHA_UALOADS)
245 stl_u(val,(u32*)(M.mem_base + addr));
246+#elif defined(IA64_UALOADS)
247+ ustl(val,(u32*)(M.mem_base + addr));
248+#else
249+ *(u32*)(M.mem_base + addr) = val;
250+#endif
251 }
252
253 /****************************************************************************
254--
255cgit v0.8.3-6-g21f6
256