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comparison lld/MachO/Arch/X86_64.cpp @ 252:1f2b6ac9f198 llvm-original

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LLVM16-1
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Fri, 18 Aug 2023 09:04:13 +0900
parents c4bab56944e8
children
comparison
equal deleted inserted replaced
237:c80f45b162ad 252:1f2b6ac9f198
229 assert(r.type == X86_64_RELOC_BRANCH); 229 assert(r.type == X86_64_RELOC_BRANCH);
230 230
231 if (config->outputType == MH_OBJECT) 231 if (config->outputType == MH_OBJECT)
232 return; 232 return;
233 233
234 if (sym->getName().startswith("___dtrace_probe")) { 234 if (sym->getName().starts_with("___dtrace_probe")) {
235 // change call site to a NOP 235 // change call site to a NOP
236 loc[-1] = 0x90; 236 loc[-1] = 0x90;
237 write32le(loc, 0x00401F0F); 237 write32le(loc, 0x00401F0F);
238 } else if (sym->getName().startswith("___dtrace_isenabled")) { 238 } else if (sym->getName().starts_with("___dtrace_isenabled")) {
239 // change call site to a clear eax 239 // change call site to a clear eax
240 loc[-1] = 0x33; 240 loc[-1] = 0x33;
241 write32le(loc, 0x909090C0); 241 write32le(loc, 0x909090C0);
242 } else { 242 } else {
243 error("Unrecognized dtrace symbol prefix: " + toString(*sym)); 243 error("Unrecognized dtrace symbol prefix: " + toString(*sym));