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Added
Link Here
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| 1 |
--- xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc_freebsd.s.orig 2009-09-26 22:23:56.000000000 +0200 |
| 2 |
+++ xpcom/reflect/xptcall/src/md/unix/xptcinvoke_asm_ppc_freebsd.s 2009-09-27 10:01:48.000000000 +0200 |
| 3 |
@@ -0,0 +1,110 @@ |
| 4 |
+# -*- Mode: Asm -*- |
| 5 |
+# |
| 6 |
+# The contents of this file are subject to the Netscape Public |
| 7 |
+# License Version 1.1 (the "License"); you may not use this file |
| 8 |
+# except in compliance with the License. You may obtain a copy of |
| 9 |
+# the License at http://www.mozilla.org/NPL/ |
| 10 |
+# |
| 11 |
+# Software distributed under the License is distributed on an "AS |
| 12 |
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or |
| 13 |
+# implied. See the License for the specific language governing |
| 14 |
+# rights and limitations under the License. |
| 15 |
+# |
| 16 |
+# The Original Code is mozilla.org code. |
| 17 |
+# |
| 18 |
+# The Initial Developer of the Original Code is Netscape |
| 19 |
+# Communications Corporation. Portions created by Netscape are |
| 20 |
+# Copyright (C) 1999 Netscape Communications Corporation. All |
| 21 |
+# Rights Reserved. |
| 22 |
+# |
| 23 |
+# Contributor(s): |
| 24 |
+# Franz.Sirl-kernel@lauterbach.com (Franz Sirl) |
| 25 |
+# beard@netscape.com (Patrick Beard) |
| 26 |
+# waterson@netscape.com (Chris Waterson) |
| 27 |
+# |
| 28 |
+.set r0,0; .set sp,1; .set RTOC,2; .set r3,3; .set r4,4 |
| 29 |
+.set r5,5; .set r6,6; .set r7,7; .set r8,8; .set r9,9 |
| 30 |
+.set r10,10; .set r11,11; .set r12,12; .set r13,13; .set r14,14 |
| 31 |
+.set r15,15; .set r16,16; .set r17,17; .set r18,18; .set r19,19 |
| 32 |
+.set r20,20; .set r21,21; .set r22,22; .set r23,23; .set r24,24 |
| 33 |
+.set r25,25; .set r26,26; .set r27,27; .set r28,28; .set r29,29 |
| 34 |
+.set r30,30; .set r31,31 |
| 35 |
+.set f0,0; .set f1,1; .set f2,2; .set f3,3; .set f4,4 |
| 36 |
+.set f5,5; .set f6,6; .set f7,7; .set f8,8; .set f9,9 |
| 37 |
+.set f10,10; .set f11,11; .set f12,12; .set f13,13; .set f14,14 |
| 38 |
+.set f15,15; .set f16,16; .set f17,17; .set f18,18; .set f19,19 |
| 39 |
+.set f20,20; .set f21,21; .set f22,22; .set f23,23; .set f24,24 |
| 40 |
+.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29 |
| 41 |
+.set f30,30; .set f31,31 |
| 42 |
+ |
| 43 |
+ .section ".text" |
| 44 |
+ .align 2 |
| 45 |
+ .globl NS_InvokeByIndex_P |
| 46 |
+ .type NS_InvokeByIndex_P,@function |
| 47 |
+ |
| 48 |
+# |
| 49 |
+# NS_InvokeByIndex_P(nsISupports* that, PRUint32 methodIndex, |
| 50 |
+# PRUint32 paramCount, nsXPTCVariant* params) |
| 51 |
+# |
| 52 |
+ |
| 53 |
+NS_InvokeByIndex_P: |
| 54 |
+ stwu sp,-32(sp) # setup standard stack frame |
| 55 |
+ mflr r0 # save LR |
| 56 |
+ stw r3,8(sp) # r3 <= that |
| 57 |
+ stw r4,12(sp) # r4 <= methodIndex |
| 58 |
+ stw r30,16(sp) |
| 59 |
+ stw r31,20(sp) |
| 60 |
+ |
| 61 |
+ stw r0,36(sp) # store LR backchain |
| 62 |
+ mr r31,sp |
| 63 |
+ |
| 64 |
+ rlwinm r10,r5,3,0,27 # r10 = (ParamCount * 2 * 4) & ~0x0f |
| 65 |
+ addi r0,r10,96 # reserve stack for GPR and FPR register save area r0 = r10 + 96 |
| 66 |
+ lwz r9,0(sp) # r9 = backchain |
| 67 |
+ neg r0,r0 |
| 68 |
+ stwux r9,sp,r0 # reserve stack sapce and save SP backchain |
| 69 |
+ |
| 70 |
+ addi r3,sp,8 # r3 <= args |
| 71 |
+ mr r4,r5 # r4 <= paramCount |
| 72 |
+ mr r5,r6 # r5 <= params |
| 73 |
+ add r6,r3,r10 # r6 <= gpregs ( == args + r10 ) |
| 74 |
+ mr r30,r6 # store in r30 for use later... |
| 75 |
+ addi r7,r6,32 # r7 <= fpregs ( == gpregs + 32 ) |
| 76 |
+ |
| 77 |
+ bl invoke_copy_to_stack@local # (args, paramCount, params, gpregs, fpregs) |
| 78 |
+ |
| 79 |
+ lfd f1,32(r30) # load FP registers with method parameters |
| 80 |
+ lfd f2,40(r30) |
| 81 |
+ lfd f3,48(r30) |
| 82 |
+ lfd f4,56(r30) |
| 83 |
+ lfd f5,64(r30) |
| 84 |
+ lfd f6,72(r30) |
| 85 |
+ lfd f7,80(r30) |
| 86 |
+ lfd f8,88(r30) |
| 87 |
+ |
| 88 |
+ lwz r3,8(r31) # r3 <= that |
| 89 |
+ lwz r4,12(r31) # r4 <= methodIndex |
| 90 |
+ lwz r5,0(r3) # r5 <= vtable ( == *that ) |
| 91 |
+ |
| 92 |
+ slwi r4,r4,2 # convert to offset ( *= 4 ) |
| 93 |
+ lwzx r0,r5,r4 # r0 <= methodpointer ( == vtable + offset ) |
| 94 |
+ |
| 95 |
+ lwz r4,4(r30) # load GP regs with method parameters |
| 96 |
+ lwz r5,8(r30) |
| 97 |
+ lwz r6,12(r30) |
| 98 |
+ lwz r7,16(r30) |
| 99 |
+ lwz r8,20(r30) |
| 100 |
+ lwz r9,24(r30) |
| 101 |
+ lwz r10,28(r30) |
| 102 |
+ |
| 103 |
+ mtlr r0 # copy methodpointer to LR |
| 104 |
+ blrl # call method |
| 105 |
+ |
| 106 |
+ lwz r30,16(r31) # restore r30 & r31 |
| 107 |
+ lwz r31,20(r31) |
| 108 |
+ |
| 109 |
+ lwz r11,0(sp) # clean up the stack |
| 110 |
+ lwz r0,4(r11) |
| 111 |
+ mtlr r0 |
| 112 |
+ mr sp,r11 |
| 113 |
+ blr |
| 114 |
--- xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc_freebsd.cpp.orig 2009-09-26 22:23:56.000000000 +0200 |
| 115 |
+++ xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc_freebsd.cpp 2009-09-27 09:58:59.000000000 +0200 |
| 116 |
@@ -0,0 +1,141 @@ |
| 117 |
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
| 118 |
+/* ***** BEGIN LICENSE BLOCK ***** |
| 119 |
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| 120 |
+ * |
| 121 |
+ * The contents of this file are subject to the Mozilla Public License Version |
| 122 |
+ * 1.1 (the "License"); you may not use this file except in compliance with |
| 123 |
+ * the License. You may obtain a copy of the License at |
| 124 |
+ * http://www.mozilla.org/MPL/ |
| 125 |
+ * |
| 126 |
+ * Software distributed under the License is distributed on an "AS IS" basis, |
| 127 |
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| 128 |
+ * for the specific language governing rights and limitations under the |
| 129 |
+ * License. |
| 130 |
+ * |
| 131 |
+ * The Original Code is mozilla.org code. |
| 132 |
+ * |
| 133 |
+ * The Initial Developer of the Original Code is |
| 134 |
+ * Netscape Communications Corporation. |
| 135 |
+ * Portions created by the Initial Developer are Copyright (C) 1998 |
| 136 |
+ * the Initial Developer. All Rights Reserved. |
| 137 |
+ * |
| 138 |
+ * Contributor(s): |
| 139 |
+ * Franz.Sirl-kernel@lauterbach.com (Franz Sirl) |
| 140 |
+ * beard@netscape.com (Patrick Beard) |
| 141 |
+ * waterson@netscape.com (Chris Waterson) |
| 142 |
+ * |
| 143 |
+ * Alternatively, the contents of this file may be used under the terms of |
| 144 |
+ * either of the GNU General Public License Version 2 or later (the "GPL"), |
| 145 |
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| 146 |
+ * in which case the provisions of the GPL or the LGPL are applicable instead |
| 147 |
+ * of those above. If you wish to allow use of your version of this file only |
| 148 |
+ * under the terms of either the GPL or the LGPL, and not to allow others to |
| 149 |
+ * use your version of this file under the terms of the MPL, indicate your |
| 150 |
+ * decision by deleting the provisions above and replace them with the notice |
| 151 |
+ * and other provisions required by the GPL or the LGPL. If you do not delete |
| 152 |
+ * the provisions above, a recipient may use your version of this file under |
| 153 |
+ * the terms of any one of the MPL, the GPL or the LGPL. |
| 154 |
+ * |
| 155 |
+ * ***** END LICENSE BLOCK ***** */ |
| 156 |
+ |
| 157 |
+// Platform specific code to invoke XPCOM methods on native objects |
| 158 |
+ |
| 159 |
+// The purpose of NS_InvokeByIndex_P() is to map a platform |
| 160 |
+// indepenpent call to the platform ABI. To do that, |
| 161 |
+// NS_InvokeByIndex_P() has to determine the method to call via vtable |
| 162 |
+// access. The parameters for the method are read from the |
| 163 |
+// nsXPTCVariant* and prepared for th native ABI. For the Linux/PPC |
| 164 |
+// ABI this means that the first 8 integral and floating point |
| 165 |
+// parameters are passed in registers. |
| 166 |
+ |
| 167 |
+#include "xptcprivate.h" |
| 168 |
+ |
| 169 |
+// 8 integral parameters are passed in registers |
| 170 |
+#define GPR_COUNT 8 |
| 171 |
+ |
| 172 |
+// 8 floating point parameters are passed in registers, floats are |
| 173 |
+// promoted to doubles when passed in registers |
| 174 |
+#define FPR_COUNT 8 |
| 175 |
+ |
| 176 |
+extern "C" PRUint32 |
| 177 |
+invoke_count_words(PRUint32 paramCount, nsXPTCVariant* s) |
| 178 |
+{ |
| 179 |
+ return PRUint32(((paramCount * 2) + 3) & ~3); |
| 180 |
+} |
| 181 |
+ |
| 182 |
+extern "C" void |
| 183 |
+invoke_copy_to_stack(PRUint32* d, |
| 184 |
+ PRUint32 paramCount, |
| 185 |
+ nsXPTCVariant* s, |
| 186 |
+ PRUint32* gpregs, |
| 187 |
+ double* fpregs) |
| 188 |
+{ |
| 189 |
+ PRUint32 gpr = 1; // skip one GP reg for 'that' |
| 190 |
+ PRUint32 fpr = 0; |
| 191 |
+ PRUint32 tempu32; |
| 192 |
+ PRUint64 tempu64; |
| 193 |
+ |
| 194 |
+ for(uint32 i = 0; i < paramCount; i++, s++) { |
| 195 |
+ if(s->IsPtrData()) |
| 196 |
+ tempu32 = (PRUint32) s->ptr; |
| 197 |
+ else { |
| 198 |
+ switch(s->type) { |
| 199 |
+ case nsXPTType::T_FLOAT: break; |
| 200 |
+ case nsXPTType::T_DOUBLE: break; |
| 201 |
+ case nsXPTType::T_I8: tempu32 = s->val.i8; break; |
| 202 |
+ case nsXPTType::T_I16: tempu32 = s->val.i16; break; |
| 203 |
+ case nsXPTType::T_I32: tempu32 = s->val.i32; break; |
| 204 |
+ case nsXPTType::T_I64: tempu64 = s->val.i64; break; |
| 205 |
+ case nsXPTType::T_U8: tempu32 = s->val.u8; break; |
| 206 |
+ case nsXPTType::T_U16: tempu32 = s->val.u16; break; |
| 207 |
+ case nsXPTType::T_U32: tempu32 = s->val.u32; break; |
| 208 |
+ case nsXPTType::T_U64: tempu64 = s->val.u64; break; |
| 209 |
+ case nsXPTType::T_BOOL: tempu32 = s->val.b; break; |
| 210 |
+ case nsXPTType::T_CHAR: tempu32 = s->val.c; break; |
| 211 |
+ case nsXPTType::T_WCHAR: tempu32 = s->val.wc; break; |
| 212 |
+ default: tempu32 = (PRUint32) s->val.p; break; |
| 213 |
+ } |
| 214 |
+ } |
| 215 |
+ |
| 216 |
+ if (!s->IsPtrData() && s->type == nsXPTType::T_DOUBLE) { |
| 217 |
+ if (fpr < FPR_COUNT) |
| 218 |
+ fpregs[fpr++] = s->val.d; |
| 219 |
+ else { |
| 220 |
+ if ((PRUint32) d & 4) d++; // doubles are 8-byte aligned on stack |
| 221 |
+ *((double*) d) = s->val.d; |
| 222 |
+ d += 2; |
| 223 |
+ } |
| 224 |
+ } |
| 225 |
+ else if (!s->IsPtrData() && s->type == nsXPTType::T_FLOAT) { |
| 226 |
+ if (fpr < FPR_COUNT) |
| 227 |
+ fpregs[fpr++] = s->val.f; // if passed in registers, floats are promoted to doubles |
| 228 |
+ else |
| 229 |
+ *((float*) d++) = s->val.f; |
| 230 |
+ } |
| 231 |
+ else if (!s->IsPtrData() && (s->type == nsXPTType::T_I64 |
| 232 |
+ || s->type == nsXPTType::T_U64)) { |
| 233 |
+ if ((gpr + 1) < GPR_COUNT) { |
| 234 |
+ if (gpr & 1) gpr++; // longlongs are aligned in odd/even register pairs, eg. r5/r6 |
| 235 |
+ *((PRUint64*) &gpregs[gpr]) = tempu64; |
| 236 |
+ gpr += 2; |
| 237 |
+ } |
| 238 |
+ else { |
| 239 |
+ if ((PRUint32) d & 4) d++; // longlongs are 8-byte aligned on stack |
| 240 |
+ *((PRUint64*) d) = tempu64; |
| 241 |
+ d += 2; |
| 242 |
+ } |
| 243 |
+ } |
| 244 |
+ else { |
| 245 |
+ if (gpr < GPR_COUNT) |
| 246 |
+ gpregs[gpr++] = tempu32; |
| 247 |
+ else |
| 248 |
+ *d++ = tempu32; |
| 249 |
+ } |
| 250 |
+ |
| 251 |
+ } |
| 252 |
+} |
| 253 |
+ |
| 254 |
+extern "C" |
| 255 |
+EXPORT_XPCOM_API(nsresult) |
| 256 |
+NS_InvokeByIndex_P(nsISupports* that, PRUint32 methodIndex, |
| 257 |
+ PRUint32 paramCount, nsXPTCVariant* params); |
| 258 |
--- xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc_freebsd.s.orig 2009-09-26 22:23:56.000000000 +0200 |
| 259 |
+++ xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc_freebsd.s 2009-09-26 22:23:56.000000000 +0200 |
| 260 |
@@ -0,0 +1,89 @@ |
| 261 |
+# -*- Mode: Asm -*- |
| 262 |
+# |
| 263 |
+# The contents of this file are subject to the Netscape Public |
| 264 |
+# License Version 1.1 (the "License"); you may not use this file |
| 265 |
+# except in compliance with the License. You may obtain a copy of |
| 266 |
+# the License at http://www.mozilla.org/NPL/ |
| 267 |
+# |
| 268 |
+# Software distributed under the License is distributed on an "AS |
| 269 |
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or |
| 270 |
+# implied. See the License for the specific language governing |
| 271 |
+# rights and limitations under the License. |
| 272 |
+# |
| 273 |
+# The Original Code is mozilla.org code. |
| 274 |
+# |
| 275 |
+# The Initial Developer of the Original Code is Netscape |
| 276 |
+# Communications Corporation. Portions created by Netscape are |
| 277 |
+# Copyright (C) 1999 Netscape Communications Corporation. All |
| 278 |
+# Rights Reserved. |
| 279 |
+# |
| 280 |
+# Contributor(s): |
| 281 |
+# Franz.Sirl-kernel@lauterbach.com (Franz Sirl) |
| 282 |
+# beard@netscape.com (Patrick Beard) |
| 283 |
+# waterson@netscape.com (Chris Waterson) |
| 284 |
+# |
| 285 |
+ |
| 286 |
+.set r0,0; .set sp,1; .set RTOC,2; .set r3,3; .set r4,4 |
| 287 |
+.set r5,5; .set r6,6; .set r7,7; .set r8,8; .set r9,9 |
| 288 |
+.set r10,10; .set r11,11; .set r12,12; .set r13,13; .set r14,14 |
| 289 |
+.set r15,15; .set r16,16; .set r17,17; .set r18,18; .set r19,19 |
| 290 |
+.set r20,20; .set r21,21; .set r22,22; .set r23,23; .set r24,24 |
| 291 |
+.set r25,25; .set r26,26; .set r27,27; .set r28,28; .set r29,29 |
| 292 |
+.set r30,30; .set r31,31 |
| 293 |
+.set f0,0; .set f1,1; .set f2,2; .set f3,3; .set f4,4 |
| 294 |
+.set f5,5; .set f6,6; .set f7,7; .set f8,8; .set f9,9 |
| 295 |
+.set f10,10; .set f11,11; .set f12,12; .set f13,13; .set f14,14 |
| 296 |
+.set f15,15; .set f16,16; .set f17,17; .set f18,18; .set f19,19 |
| 297 |
+.set f20,20; .set f21,21; .set f22,22; .set f23,23; .set f24,24 |
| 298 |
+.set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29 |
| 299 |
+.set f30,30; .set f31,31 |
| 300 |
+ |
| 301 |
+ .section ".text" |
| 302 |
+ .align 2 |
| 303 |
+ .globl SharedStub |
| 304 |
+ .type SharedStub,@function |
| 305 |
+ |
| 306 |
+SharedStub: |
| 307 |
+ stwu sp,-112(sp) # room for |
| 308 |
+ # linkage (8), |
| 309 |
+ # gprData (32), |
| 310 |
+ # fprData (64), |
| 311 |
+ # stack alignment(8) |
| 312 |
+ mflr r0 |
| 313 |
+ stw r0,116(sp) # save LR backchain |
| 314 |
+ |
| 315 |
+ stw r4,12(sp) # save GP registers |
| 316 |
+ stw r5,16(sp) # (n.b. that we don't save r3 |
| 317 |
+ stw r6,20(sp) # because PrepareAndDispatch() is savvy) |
| 318 |
+ stw r7,24(sp) |
| 319 |
+ stw r8,28(sp) |
| 320 |
+ stw r9,32(sp) |
| 321 |
+ stw r10,36(sp) |
| 322 |
+ |
| 323 |
+ stfd f1,40(sp) # save FP registers |
| 324 |
+ stfd f2,48(sp) |
| 325 |
+ stfd f3,56(sp) |
| 326 |
+ stfd f4,64(sp) |
| 327 |
+ stfd f5,72(sp) |
| 328 |
+ stfd f6,80(sp) |
| 329 |
+ stfd f7,88(sp) |
| 330 |
+ stfd f8,96(sp) |
| 331 |
+ |
| 332 |
+ # r3 has the 'self' pointer already |
| 333 |
+ |
| 334 |
+ mr r4,r11 # r4 <= methodIndex selector, passed |
| 335 |
+ # via r11 in the nsXPTCStubBase::StubXX() call |
| 336 |
+ |
| 337 |
+ addi r5,sp,120 # r5 <= pointer to callers args area, |
| 338 |
+ # beyond r3-r10/f1-f8 mapped range |
| 339 |
+ |
| 340 |
+ addi r6,sp,8 # r6 <= gprData |
| 341 |
+ addi r7,sp,40 # r7 <= fprData |
| 342 |
+ |
| 343 |
+ bl PrepareAndDispatch@local # Go! |
| 344 |
+ |
| 345 |
+ lwz r0,116(sp) # restore LR |
| 346 |
+ mtlr r0 |
| 347 |
+ la sp,112(sp) # clean up the stack |
| 348 |
+ blr |
| 349 |
+ |
| 350 |
--- xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc_freebsd.cpp.orig 2009-09-26 22:23:56.000000000 +0200 |
| 351 |
+++ xpcom/reflect/xptcall/src/md/unix/xptcstubs_ppc_freebsd.cpp 2009-09-26 22:43:57.000000000 +0200 |
| 352 |
@@ -0,0 +1,228 @@ |
| 353 |
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
| 354 |
+/* ***** BEGIN LICENSE BLOCK ***** |
| 355 |
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| 356 |
+ * |
| 357 |
+ * The contents of this file are subject to the Mozilla Public License Version |
| 358 |
+ * 1.1 (the "License"); you may not use this file except in compliance with |
| 359 |
+ * the License. You may obtain a copy of the License at |
| 360 |
+ * http://www.mozilla.org/MPL/ |
| 361 |
+ * |
| 362 |
+ * Software distributed under the License is distributed on an "AS IS" basis, |
| 363 |
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| 364 |
+ * for the specific language governing rights and limitations under the |
| 365 |
+ * License. |
| 366 |
+ * |
| 367 |
+ * The Original Code is mozilla.org code. |
| 368 |
+ * |
| 369 |
+ * The Initial Developer of the Original Code is |
| 370 |
+ * Netscape Communications Corporation. |
| 371 |
+ * Portions created by the Initial Developer are Copyright (C) 1999 |
| 372 |
+ * the Initial Developer. All Rights Reserved. |
| 373 |
+ * |
| 374 |
+ * Contributor(s): |
| 375 |
+ * Franz.Sirl-kernel@lauterbach.com (Franz Sirl) |
| 376 |
+ * beard@netscape.com (Patrick Beard) |
| 377 |
+ * waterson@netscape.com (Chris Waterson) |
| 378 |
+ * |
| 379 |
+ * Alternatively, the contents of this file may be used under the terms of |
| 380 |
+ * either of the GNU General Public License Version 2 or later (the "GPL"), |
| 381 |
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| 382 |
+ * in which case the provisions of the GPL or the LGPL are applicable instead |
| 383 |
+ * of those above. If you wish to allow use of your version of this file only |
| 384 |
+ * under the terms of either the GPL or the LGPL, and not to allow others to |
| 385 |
+ * use your version of this file under the terms of the MPL, indicate your |
| 386 |
+ * decision by deleting the provisions above and replace them with the notice |
| 387 |
+ * and other provisions required by the GPL or the LGPL. If you do not delete |
| 388 |
+ * the provisions above, a recipient may use your version of this file under |
| 389 |
+ * the terms of any one of the MPL, the GPL or the LGPL. |
| 390 |
+ * |
| 391 |
+ * ***** END LICENSE BLOCK ***** */ |
| 392 |
+ |
| 393 |
+// Implement shared vtbl methods. |
| 394 |
+ |
| 395 |
+#include "xptcprivate.h" |
| 396 |
+#include "xptiprivate.h" |
| 397 |
+ |
| 398 |
+// The PPC/SYSV ABI passes the first 8 integral |
| 399 |
+// parameters and the first 8 floating point parameters in registers |
| 400 |
+// (r3-r10 and f1-f8), no stack space is allocated for these by the |
| 401 |
+// caller. The rest of the parameters are passed in the callers stack |
| 402 |
+// area. The stack pointer has to retain 16-byte alignment, longlongs |
| 403 |
+// and doubles are aligned on 8-byte boundaries. |
| 404 |
+ |
| 405 |
+#define PARAM_BUFFER_COUNT 16 |
| 406 |
+#define GPR_COUNT 8 |
| 407 |
+#define FPR_COUNT 8 |
| 408 |
+ |
| 409 |
+// PrepareAndDispatch() is called by SharedStub() and calls the actual method. |
| 410 |
+// |
| 411 |
+// - 'args[]' contains the arguments passed on stack |
| 412 |
+// - 'gprData[]' contains the arguments passed in integer registers |
| 413 |
+// - 'fprData[]' contains the arguments passed in floating point registers |
| 414 |
+// |
| 415 |
+// The parameters are mapped into an array of type 'nsXPTCMiniVariant' |
| 416 |
+// and then the method gets called. |
| 417 |
+ |
| 418 |
+extern "C" nsresult |
| 419 |
+PrepareAndDispatch(nsXPTCStubBase* self, |
| 420 |
+ PRUint32 methodIndex, |
| 421 |
+ PRUint32* args, |
| 422 |
+ PRUint32 *gprData, |
| 423 |
+ double *fprData) |
| 424 |
+{ |
| 425 |
+ nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT]; |
| 426 |
+ nsXPTCMiniVariant* dispatchParams = NULL; |
| 427 |
+ const nsXPTMethodInfo* info = NULL; |
| 428 |
+ PRUint32 paramCount; |
| 429 |
+ PRUint32 i; |
| 430 |
+ nsresult result = NS_ERROR_FAILURE; |
| 431 |
+ |
| 432 |
+ NS_ASSERTION(self,"no self"); |
| 433 |
+ |
| 434 |
+ self->mEntry->GetMethodInfo(PRUint16(methodIndex), &info); |
| 435 |
+ NS_ASSERTION(info,"no method info"); |
| 436 |
+ if (! info) |
| 437 |
+ return NS_ERROR_UNEXPECTED; |
| 438 |
+ |
| 439 |
+ paramCount = info->GetParamCount(); |
| 440 |
+ |
| 441 |
+ // setup variant array pointer |
| 442 |
+ if(paramCount > PARAM_BUFFER_COUNT) |
| 443 |
+ dispatchParams = new nsXPTCMiniVariant[paramCount]; |
| 444 |
+ else |
| 445 |
+ dispatchParams = paramBuffer; |
| 446 |
+ |
| 447 |
+ NS_ASSERTION(dispatchParams,"no place for params"); |
| 448 |
+ if (! dispatchParams) |
| 449 |
+ return NS_ERROR_OUT_OF_MEMORY; |
| 450 |
+ |
| 451 |
+ PRUint32* ap = args; |
| 452 |
+ PRUint32 gpr = 1; // skip one GPR register |
| 453 |
+ PRUint32 fpr = 0; |
| 454 |
+ PRUint32 tempu32; |
| 455 |
+ PRUint64 tempu64; |
| 456 |
+ |
| 457 |
+ for(i = 0; i < paramCount; i++) { |
| 458 |
+ const nsXPTParamInfo& param = info->GetParam(i); |
| 459 |
+ const nsXPTType& type = param.GetType(); |
| 460 |
+ nsXPTCMiniVariant* dp = &dispatchParams[i]; |
| 461 |
+ |
| 462 |
+ if (!param.IsOut() && type == nsXPTType::T_DOUBLE) { |
| 463 |
+ if (fpr < FPR_COUNT) |
| 464 |
+ dp->val.d = fprData[fpr++]; |
| 465 |
+ else { |
| 466 |
+ if ((PRUint32) ap & 4) ap++; // doubles are 8-byte aligned on stack |
| 467 |
+ dp->val.d = *(double*) ap; |
| 468 |
+ ap += 2; |
| 469 |
+ } |
| 470 |
+ continue; |
| 471 |
+ } |
| 472 |
+ else if (!param.IsOut() && type == nsXPTType::T_FLOAT) { |
| 473 |
+ if (fpr < FPR_COUNT) |
| 474 |
+ dp->val.f = (float) fprData[fpr++]; // in registers floats are passed as doubles |
| 475 |
+ else |
| 476 |
+ dp->val.f = *(float*) ap++; |
| 477 |
+ continue; |
| 478 |
+ } |
| 479 |
+ else if (!param.IsOut() && (type == nsXPTType::T_I64 |
| 480 |
+ || type == nsXPTType::T_U64)) { |
| 481 |
+ if (gpr & 1) gpr++; // longlongs are aligned in odd/even register pairs, eg. r5/r6 |
| 482 |
+ if ((gpr + 1) < GPR_COUNT) { |
| 483 |
+ tempu64 = *(PRUint64*) &gprData[gpr]; |
| 484 |
+ gpr += 2; |
| 485 |
+ } |
| 486 |
+ else { |
| 487 |
+ if ((PRUint32) ap & 4) ap++; // longlongs are 8-byte aligned on stack |
| 488 |
+ tempu64 = *(PRUint64*) ap; |
| 489 |
+ ap += 2; |
| 490 |
+ } |
| 491 |
+ } |
| 492 |
+ else { |
| 493 |
+ if (gpr < GPR_COUNT) |
| 494 |
+ tempu32 = gprData[gpr++]; |
| 495 |
+ else |
| 496 |
+ tempu32 = *ap++; |
| 497 |
+ } |
| 498 |
+ |
| 499 |
+ if(param.IsOut() || !type.IsArithmetic()) { |
| 500 |
+ dp->val.p = (void*) tempu32; |
| 501 |
+ continue; |
| 502 |
+ } |
| 503 |
+ |
| 504 |
+ switch(type) { |
| 505 |
+ case nsXPTType::T_I8: dp->val.i8 = (PRInt8) tempu32; break; |
| 506 |
+ case nsXPTType::T_I16: dp->val.i16 = (PRInt16) tempu32; break; |
| 507 |
+ case nsXPTType::T_I32: dp->val.i32 = (PRInt32) tempu32; break; |
| 508 |
+ case nsXPTType::T_I64: dp->val.i64 = (PRInt64) tempu64; break; |
| 509 |
+ case nsXPTType::T_U8: dp->val.u8 = (PRUint8) tempu32; break; |
| 510 |
+ case nsXPTType::T_U16: dp->val.u16 = (PRUint16) tempu32; break; |
| 511 |
+ case nsXPTType::T_U32: dp->val.u32 = (PRUint32) tempu32; break; |
| 512 |
+ case nsXPTType::T_U64: dp->val.u64 = (PRUint64) tempu64; break; |
| 513 |
+ case nsXPTType::T_BOOL: dp->val.b = (PRBool) tempu32; break; |
| 514 |
+ case nsXPTType::T_CHAR: dp->val.c = (char) tempu32; break; |
| 515 |
+ case nsXPTType::T_WCHAR: dp->val.wc = (wchar_t) tempu32; break; |
| 516 |
+ |
| 517 |
+ default: |
| 518 |
+ NS_ASSERTION(0, "bad type"); |
| 519 |
+ break; |
| 520 |
+ } |
| 521 |
+ } |
| 522 |
+ |
| 523 |
+ result = self->mOuter->CallMethod((PRUint16)methodIndex, |
| 524 |
+ info, |
| 525 |
+ dispatchParams); |
| 526 |
+ |
| 527 |
+ if (dispatchParams != paramBuffer) |
| 528 |
+ delete [] dispatchParams; |
| 529 |
+ |
| 530 |
+ return result; |
| 531 |
+ |
| 532 |
+} |
| 533 |
+ |
| 534 |
+// Load r11 with the constant 'n' and branch to SharedStub(). |
| 535 |
+ |
| 536 |
+// As G++3 ABI contains the length of the functionname in the mangled |
| 537 |
+// name, it is difficult to get a generic assembler mechanism like |
| 538 |
+// in the G++ 2.95 case. |
| 539 |
+// Create names would be like: |
| 540 |
+// _ZN14nsXPTCStubBase5Stub1Ev |
| 541 |
+// _ZN14nsXPTCStubBase6Stub12Ev |
| 542 |
+// _ZN14nsXPTCStubBase7Stub123Ev |
| 543 |
+// _ZN14nsXPTCStubBase8Stub1234Ev |
| 544 |
+// etc. |
| 545 |
+// Use assembler directives to get the names right... |
| 546 |
+ |
| 547 |
+# define STUB_ENTRY(n) \ |
| 548 |
+__asm__ ( \ |
| 549 |
+ ".align 2 \n\t" \ |
| 550 |
+ ".if "#n" < 10 \n\t" \ |
| 551 |
+ ".globl _ZN14nsXPTCStubBase5Stub"#n"Ev \n\t" \ |
| 552 |
+ ".type _ZN14nsXPTCStubBase5Stub"#n"Ev,@function \n\n" \ |
| 553 |
+"_ZN14nsXPTCStubBase5Stub"#n"Ev: \n\t" \ |
| 554 |
+ \ |
| 555 |
+ ".elseif "#n" < 100 \n\t" \ |
| 556 |
+ ".globl _ZN14nsXPTCStubBase6Stub"#n"Ev \n\t" \ |
| 557 |
+ ".type _ZN14nsXPTCStubBase6Stub"#n"Ev,@function \n\n" \ |
| 558 |
+"_ZN14nsXPTCStubBase6Stub"#n"Ev: \n\t" \ |
| 559 |
+ \ |
| 560 |
+ ".elseif "#n" < 1000 \n\t" \ |
| 561 |
+ ".globl _ZN14nsXPTCStubBase7Stub"#n"Ev \n\t" \ |
| 562 |
+ ".type _ZN14nsXPTCStubBase7Stub"#n"Ev,@function \n\n" \ |
| 563 |
+"_ZN14nsXPTCStubBase7Stub"#n"Ev: \n\t" \ |
| 564 |
+ \ |
| 565 |
+ ".else \n\t" \ |
| 566 |
+ ".err \"stub number "#n" >= 1000 not yet supported\"\n" \ |
| 567 |
+ ".endif \n\t" \ |
| 568 |
+ \ |
| 569 |
+ "li 11,"#n" \n\t" \ |
| 570 |
+ "b SharedStub@local \n" \ |
| 571 |
+); |
| 572 |
+ |
| 573 |
+#define SENTINEL_ENTRY(n) \ |
| 574 |
+nsresult nsXPTCStubBase::Sentinel##n() \ |
| 575 |
+{ \ |
| 576 |
+ NS_ASSERTION(0,"nsXPTCStubBase::Sentinel called"); \ |
| 577 |
+ return NS_ERROR_NOT_IMPLEMENTED; \ |
| 578 |
+} |
| 579 |
+ |
| 580 |
+#include "xptcstubsdef.inc" |