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-rw-r--r--meta/recipes-devtools/gcc/gcc-csl-arm/pic-without-sl.patch303
1 files changed, 303 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-csl-arm/pic-without-sl.patch b/meta/recipes-devtools/gcc/gcc-csl-arm/pic-without-sl.patch
new file mode 100644
index 0000000000..9a49794da4
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-csl-arm/pic-without-sl.patch
@@ -0,0 +1,303 @@
1Index: gcc/config/arm/arm-protos.h
2===================================================================
3RCS file: /cvsroot/gcc/gcc/gcc/config/arm/arm-protos.h,v
4retrieving revision 1.60.4.20
5diff -u -r1.60.4.20 arm-protos.h
6--- gcc/config/arm/arm-protos.h 29 Mar 2005 03:00:11 -0000 1.60.4.20
7+++ gcc/config/arm/arm-protos.h 23 Apr 2005 04:41:06 -0000
8@@ -64,6 +64,7 @@
9 extern enum reg_class vfp_secondary_reload_class (enum machine_mode, rtx);
10 extern int tls_symbolic_operand (rtx, enum machine_mode);
11 extern bool arm_tls_operand_p (rtx x);
12+extern bool arm_pc_pic_operand_p (rtx x);
13
14 /* Predicates. */
15 extern int s_register_operand (rtx, enum machine_mode);
16Index: gcc/config/arm/arm.c
17===================================================================
18RCS file: /cvsroot/gcc/gcc/gcc/config/arm/arm.c,v
19retrieving revision 1.303.2.79
20diff -u -r1.303.2.79 arm.c
21--- gcc/config/arm/arm.c 12 Apr 2005 06:17:07 -0000 1.303.2.79
22+++ gcc/config/arm/arm.c 23 Apr 2005 04:41:09 -0000
23@@ -1003,7 +1003,7 @@
24
25 /* If stack checking is disabled, we can use r10 as the PIC register,
26 which keeps r9 available. */
27- if (flag_pic)
28+ if (0 && flag_pic)
29 arm_pic_register = TARGET_APCS_STACK ? 9 : 10;
30
31 if (TARGET_APCS_FLOAT)
32@@ -3120,6 +3120,10 @@
33 rtx
34 legitimize_pic_address (rtx orig, enum machine_mode mode, rtx reg)
35 {
36+ if (GET_CODE (orig) == UNSPEC
37+ && XINT (orig, 1) == UNSPEC_GOTSLOTPC)
38+ abort ();
39+
40 if (GET_CODE (orig) == SYMBOL_REF
41 || GET_CODE (orig) == LABEL_REF)
42 {
43@@ -3149,27 +3153,80 @@
44 else
45 address = reg;
46
47- if (TARGET_ARM)
48- emit_insn (gen_pic_load_addr_arm (address, orig));
49- else
50- emit_insn (gen_pic_load_addr_thumb (address, orig));
51+ if (arm_pic_register != INVALID_REGNUM)
52+ {
53+ /* Using GP-based PIC addressing. */
54+ if (TARGET_ARM)
55+ emit_insn (gen_pic_load_addr_arm (address, orig));
56+ else
57+ emit_insn (gen_pic_load_addr_thumb (address, orig));
58+
59+ if ((GET_CODE (orig) == LABEL_REF
60+ || (GET_CODE (orig) == SYMBOL_REF &&
61+ SYMBOL_REF_LOCAL_P (orig)))
62+ && NEED_GOT_RELOC)
63+ pic_ref = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, address);
64+ else
65+ {
66+ pic_ref = gen_rtx_MEM (Pmode,
67+ gen_rtx_PLUS (Pmode, pic_offset_table_rtx,
68+ address));
69+ RTX_UNCHANGING_P (pic_ref) = 1;
70+ }
71
72- if ((GET_CODE (orig) == LABEL_REF
73- || (GET_CODE (orig) == SYMBOL_REF &&
74- SYMBOL_REF_LOCAL_P (orig)))
75- && NEED_GOT_RELOC)
76- pic_ref = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, address);
77+ current_function_uses_pic_offset_table = 1;
78+ }
79 else
80 {
81- pic_ref = gen_rtx_MEM (Pmode,
82- gen_rtx_PLUS (Pmode, pic_offset_table_rtx,
83- address));
84- RTX_UNCHANGING_P (pic_ref) = 1;
85+ /* Using PC-based PIC addressing. */
86+ rtx label, tmp;
87+ int offset;
88+
89+ label = gen_label_rtx ();
90+ offset = TARGET_ARM ? 8 : 4;
91+
92+ if (GET_CODE (orig) == LABEL_REF
93+ || (GET_CODE (orig) == SYMBOL_REF && SYMBOL_REF_LOCAL_P (orig)))
94+ {
95+ /* This symbol is defined locally. We don't need a GOT entry. */
96+ tmp = gen_rtx_MINUS (Pmode, gen_rtx_UNSPEC (Pmode, gen_rtvec (1, orig), UNSPEC_PIC_SYM), gen_rtx_PLUS (Pmode,
97+ gen_rtx_LABEL_REF (Pmode, label),
98+ GEN_INT (offset)));
99+
100+ load_tls_operand (tmp, address);
101+
102+ if (TARGET_ARM)
103+ emit_insn (gen_pic_add_dot_plus_eight (address, label));
104+ else
105+ emit_insn (gen_pic_add_dot_plus_four (address, label));
106+ }
107+ else
108+ {
109+ rtx x = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, orig), UNSPEC_GOTSLOTPC);
110+ rtx dummy_label;
111+
112+ dummy_label = gen_label_rtx ();
113+ LABEL_PRESERVE_P (dummy_label) = 1;
114+ LABEL_NUSES (dummy_label) = 1;
115+
116+ tmp = gen_rtx_MINUS (Pmode, x, gen_rtx_PLUS (Pmode,
117+ gen_rtx_LABEL_REF (Pmode, label),
118+ GEN_INT (offset)));
119+
120+ load_tls_operand (tmp, address);
121+
122+ if (TARGET_ARM)
123+ emit_insn (gen_tls_load_dot_plus_eight (address, address, label, dummy_label));
124+ else
125+ emit_insn (gen_tls_load_dot_plus_four (address, address, label, dummy_label));
126+ }
127+
128+ pic_ref = address;
129 }
130
131 insn = emit_move_insn (reg, pic_ref);
132 #endif
133- current_function_uses_pic_offset_table = 1;
134+
135 /* Put a REG_EQUAL note on this insn, so that it can be optimized
136 by loop. */
137 REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EQUAL, orig,
138@@ -3179,11 +3236,17 @@
139 else if (GET_CODE (orig) == CONST)
140 {
141 rtx base, offset;
142+ bool minus = FALSE;
143
144 if (GET_CODE (XEXP (orig, 0)) == PLUS
145 && XEXP (XEXP (orig, 0), 0) == pic_offset_table_rtx)
146 return orig;
147
148+ if (GET_CODE (XEXP (orig, 0)) == MINUS
149+ && GET_CODE (XEXP (XEXP (orig, 0), 0)) == UNSPEC
150+ && XINT (XEXP (XEXP (orig, 0), 0), 1) == UNSPEC_GOTSLOTPC)
151+ return orig;
152+
153 if (GET_CODE (XEXP (orig, 0)) == UNSPEC)
154 return orig;
155
156@@ -3201,6 +3264,13 @@
157 offset = legitimize_pic_address (XEXP (XEXP (orig, 0), 1), Pmode,
158 base == reg ? 0 : reg);
159 }
160+ else if (GET_CODE (XEXP (orig, 0)) == MINUS)
161+ {
162+ minus = TRUE;
163+ base = legitimize_pic_address (XEXP (XEXP (orig, 0), 0), Pmode, reg);
164+ offset = legitimize_pic_address (XEXP (XEXP (orig, 0), 1), Pmode,
165+ base == reg ? 0 : reg);
166+ }
167 else
168 abort ();
169
170@@ -3228,7 +3298,7 @@
171 return reg;
172 }
173
174- return gen_rtx_PLUS (Pmode, base, offset);
175+ return minus ? gen_rtx_MINUS (Pmode, base, offset) : gen_rtx_PLUS (Pmode, base, offset);
176 }
177
178 return orig;
179@@ -3267,7 +3337,7 @@
180 rtx l1, pic_tmp, pic_tmp2, pic_rtx;
181 rtx global_offset_table;
182
183- if (current_function_uses_pic_offset_table == 0 || TARGET_SINGLE_PIC_BASE)
184+ if (current_function_uses_pic_offset_table == 0 || TARGET_SINGLE_PIC_BASE || arm_pic_register == INVALID_REGNUM)
185 return;
186
187 if (!flag_pic)
188@@ -3341,8 +3411,11 @@
189 static int
190 pcrel_constant_p (rtx x)
191 {
192+ if (GET_CODE (x) == CONST)
193+ return pcrel_constant_p (XEXP (x, 0));
194+
195 if (GET_CODE (x) == MINUS)
196- return symbol_mentioned_p (XEXP (x, 0)) && label_mentioned_p (XEXP (x, 1));
197+ return (((GET_CODE (XEXP (x, 0)) == UNSPEC && XINT (XEXP (x, 0), 1) == UNSPEC_PIC_SYM)) || symbol_mentioned_p (XEXP (x, 0))) && label_mentioned_p (XEXP (x, 1));
198
199 if (GET_CODE (x) == UNSPEC
200 && XINT (x, 1) == UNSPEC_TLS
201@@ -3946,12 +4019,32 @@
202 return SYMBOL_REF_TLS_MODEL (op);
203 }
204
205+bool
206+arm_pc_pic_operand_p (rtx op)
207+{
208+ if (GET_CODE (op) == CONST
209+ && GET_CODE (XEXP (op, 0)) == MINUS
210+ && GET_CODE (XEXP (XEXP (op, 0), 0)) == UNSPEC
211+ && XINT (XEXP (XEXP (op, 0), 0), 1) == UNSPEC_GOTSLOTPC)
212+ return 1;
213+
214+ if (GET_CODE (op) == CONST
215+ && GET_CODE (XEXP (op, 0)) == MINUS
216+ && GET_CODE (XEXP (XEXP (op, 0), 0)) == UNSPEC
217+ && XINT (XEXP (XEXP (op, 0), 0), 1) == UNSPEC_PIC_SYM)
218+ return 1;
219+
220+ return 0;
221+}
222+
223 /* Valid input to a move instruction. */
224 int
225 move_input_operand (rtx op, enum machine_mode mode)
226 {
227 if (tls_symbolic_operand (op, mode))
228 return 0;
229+ if (pcrel_constant_p (op))
230+ return 1;
231 return general_operand (op, mode);
232 }
233
234@@ -15634,11 +15727,34 @@
235 return TRUE;
236 }
237
238+static bool
239+arm_emit_got_decoration (FILE *fp, rtx x)
240+{
241+ rtx val;
242+
243+ val = XVECEXP (x, 0, 0);
244+
245+ fputs ("_gotslotpc_(", fp);
246+
247+ output_addr_const (fp, val);
248+
249+ fputc (')', fp);
250+
251+ return TRUE;
252+}
253+
254 bool
255 arm_output_addr_const_extra (FILE *fp, rtx x)
256 {
257 if (GET_CODE (x) == UNSPEC && XINT (x, 1) == UNSPEC_TLS)
258 return arm_emit_tls_decoration (fp, x);
259+ else if (GET_CODE (x) == UNSPEC && XINT (x, 1) == UNSPEC_GOTSLOTPC)
260+ return arm_emit_got_decoration (fp, x);
261+ else if (GET_CODE (x) == UNSPEC && XINT (x, 1) == UNSPEC_PIC_SYM)
262+ {
263+ output_addr_const (fp, XVECEXP (x, 0, 0));
264+ return TRUE;
265+ }
266 else if (GET_CODE (x) == CONST_VECTOR)
267 return arm_emit_vector_const (fp, x);
268
269Index: gcc/config/arm/arm.md
270===================================================================
271RCS file: /cvsroot/gcc/gcc/gcc/config/arm/arm.md,v
272retrieving revision 1.145.2.31
273diff -u -r1.145.2.31 arm.md
274--- gcc/config/arm/arm.md 28 Mar 2005 19:04:37 -0000 1.145.2.31
275+++ gcc/config/arm/arm.md 23 Apr 2005 04:41:11 -0000
276@@ -88,6 +88,7 @@
277 (UNSPEC_WMADDS 18) ; Used by the intrinsic form of the iWMMXt WMADDS instruction.
278 (UNSPEC_WMADDU 19) ; Used by the intrinsic form of the iWMMXt WMADDU instruction.
279 (UNSPEC_TLS 20) ; A symbol that has been treated properly for TLS usage.
280+ (UNSPEC_GOTSLOTPC 21)
281 ]
282 )
283
284@@ -4179,7 +4180,8 @@
285 && (CONSTANT_P (operands[1])
286 || symbol_mentioned_p (operands[1])
287 || label_mentioned_p (operands[1]))
288- && ! tls_mentioned_p (operands[1]))
289+ && ! tls_mentioned_p (operands[1])
290+ && ! arm_pc_pic_operand_p (operands[1]))
291 operands[1] = legitimize_pic_address (operands[1], SImode,
292 (no_new_pseudos ? operands[0] : 0));
293 }
294@@ -4412,7 +4414,8 @@
295 (mem:SI (unspec:SI [(plus:SI (match_dup 0)
296 (const (plus:SI (pc) (const_int 8))))]
297 UNSPEC_PIC_BASE)))
298- (use (label_ref (match_operand 1 "" "")))])]
299+ (use (label_ref (match_operand 1 "" "")))
300+ (use (label_ref (match_operand 1 "" "")))])]
301 ""
302 )
303
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-04-27 11:33:02 +0000