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Issue 2051043002: Implement Wasm GrowMemory opcode as a wasm runtime call (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Ben's review, fix includes Created 4 years, 6 months ago
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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. 1 // Copyright (c) 1994-2006 Sun Microsystems Inc.
2 // All Rights Reserved. 2 // All Rights Reserved.
3 // 3 //
4 // Redistribution and use in source and binary forms, with or without 4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions 5 // modification, are permitted provided that the following conditions
6 // are met: 6 // are met:
7 // 7 //
8 // - Redistributions of source code must retain the above copyright notice, 8 // - Redistributions of source code must retain the above copyright notice,
9 // this list of conditions and the following disclaimer. 9 // this list of conditions and the following disclaimer.
10 // 10 //
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196 return Memory::uint32_at(pc_); 196 return Memory::uint32_at(pc_);
197 } 197 }
198 198
199 void RelocInfo::update_wasm_memory_reference( 199 void RelocInfo::update_wasm_memory_reference(
200 Address old_base, Address new_base, uint32_t old_size, uint32_t new_size, 200 Address old_base, Address new_base, uint32_t old_size, uint32_t new_size,
201 ICacheFlushMode icache_flush_mode) { 201 ICacheFlushMode icache_flush_mode) {
202 DCHECK(IsWasmMemoryReference(rmode_) || IsWasmMemorySizeReference(rmode_)); 202 DCHECK(IsWasmMemoryReference(rmode_) || IsWasmMemorySizeReference(rmode_));
203 if (IsWasmMemoryReference(rmode_)) { 203 if (IsWasmMemoryReference(rmode_)) {
204 Address updated_reference; 204 Address updated_reference;
205 DCHECK(old_base <= wasm_memory_reference() && 205 DCHECK(old_base <= wasm_memory_reference() &&
206 wasm_memory_reference() < old_base + old_size); 206 wasm_memory_reference() <= old_base + old_size);
207 updated_reference = new_base + (wasm_memory_reference() - old_base); 207 updated_reference = new_base + (wasm_memory_reference() - old_base);
208 DCHECK(new_base <= updated_reference && 208 DCHECK(new_base <= updated_reference &&
209 updated_reference < new_base + new_size); 209 updated_reference < new_base + new_size);
210 Memory::Address_at(pc_) = updated_reference; 210 Memory::Address_at(pc_) = updated_reference;
211 } else if (IsWasmMemorySizeReference(rmode_)) { 211 } else if (IsWasmMemorySizeReference(rmode_)) {
212 uint32_t updated_size_reference; 212 uint32_t updated_size_reference;
213 DCHECK(wasm_memory_size_reference() <= old_size); 213 DCHECK(wasm_memory_size_reference() <= old_size);
214 updated_size_reference = 214 updated_size_reference =
215 new_size + (wasm_memory_size_reference() - old_size); 215 new_size + (wasm_memory_size_reference() - old_size);
216 DCHECK(updated_size_reference <= new_size); 216 DCHECK(updated_size_reference <= new_size);
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3088 fflush(coverage_log); 3088 fflush(coverage_log);
3089 } 3089 }
3090 } 3090 }
3091 3091
3092 #endif 3092 #endif
3093 3093
3094 } // namespace internal 3094 } // namespace internal
3095 } // namespace v8 3095 } // namespace v8
3096 3096
3097 #endif // V8_TARGET_ARCH_IA32 3097 #endif // V8_TARGET_ARCH_IA32
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