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Fiber support: clobber the registers we want restored on a context switch.
author Christian Kamm <kamm incasoftware de>
date Fri, 03 Oct 2008 09:11:41 +0200
parents c2a342b5d8e5
children 307ae566885f
comparison
equal deleted inserted replaced
640:c2a342b5d8e5 641:d9927f20758b
119 - 119 -
120 +extern(C) int printf(char*, ...); 120 +extern(C) int printf(char*, ...);
121 //////////////////////////////////////////////////////////////////////////////// 121 ////////////////////////////////////////////////////////////////////////////////
122 // Fiber Entry Point and Context Switch 122 // Fiber Entry Point and Context Switch
123 //////////////////////////////////////////////////////////////////////////////// 123 ////////////////////////////////////////////////////////////////////////////////
124 @@ -2450,6 +2484,17 @@ 124 @@ -2450,6 +2484,22 @@
125 ret; 125 ret;
126 } 126 }
127 } 127 }
128 + else version( LLVM_AsmX86_Posix ) 128 + else version( LLVM_AsmX86_Posix )
129 + { 129 + {
130 + asm 130 + asm
131 + { 131 + {
132 + // clobber registers to save
133 + inc EBX;
134 + inc ESI;
135 + inc EDI;
136 +
132 + // store oldp again with more accurate address 137 + // store oldp again with more accurate address
133 + mov EAX, oldp; 138 + mov EAX, oldp;
134 + mov [EAX], ESP; 139 + mov [EAX], ESP;
135 + // load newp to begin context switch 140 + // load newp to begin context switch
136 + mov ESP, newp; 141 + mov ESP, newp;
137 + } 142 + }
138 + } 143 + }
139 else static if( is( ucontext_t ) ) 144 else static if( is( ucontext_t ) )
140 { 145 {
141 Fiber cfib = Fiber.getThis(); 146 Fiber cfib = Fiber.getThis();
142 @@ -3115,6 +3160,13 @@ 147 @@ -3115,6 +3165,16 @@
143 push( 0x00000000 ); // ESI 148 push( 0x00000000 ); // ESI
144 push( 0x00000000 ); // EDI 149 push( 0x00000000 ); // EDI
145 } 150 }
146 + else version( LLVM_AsmX86_Posix ) 151 + else version( LLVM_AsmX86_Posix )
147 + { 152 + {
148 + push( cast(size_t) &fiber_entryPoint ); // EIP 153 + push( cast(size_t) &fiber_entryPoint ); // EIP
149 + push( 0x00000000 ); // EBP
150 + push( 0x00000000 ); // newp 154 + push( 0x00000000 ); // newp
151 + push( 0x00000000 ); // oldp 155 + push( 0x00000000 ); // oldp
156 + push( 0x00000000 ); // EBP
157 + push( 0x00000000 ); // EBX
158 + push( 0x00000000 ); // ESI
159 + push( 0x00000000 ); // EDI
152 + } 160 + }
153 else version( AsmPPC_Posix ) 161 else version( AsmPPC_Posix )
154 { 162 {
155 version( StackGrowsDown ) 163 version( StackGrowsDown )
156 Index: lib/unittest.sh 164 Index: lib/unittest.sh