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vmemu
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fixed a bug... vip_begin needs to be VIP... and also the absolute

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branch was decrypting the second branch... 1 instead of 0
merge-requests/8/merge
_xeroxz 3 years ago
parent 044e966d23
commit 2a68838755
1 changed files with 4 additions and 4 deletions
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8
src/vmemu_t.cpp
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@ -77,7 +77,7 @@ namespace vm
} }
// trace the first block given the vm enter... // trace the first block given the vm enter...
code_block_data_t code_block{ { rip }, nullptr, nullptr }; code_block_data_t code_block{ {}, nullptr, nullptr };
cc_block = &code_block; cc_block = &code_block;
std::printf( "> beginning execution at = 0x%p\n", rip ); std::printf( "> beginning execution at = 0x%p\n", rip );
@ -110,7 +110,7 @@ namespace vm
( _code_block.code_block.jcc.block_addr[ 1 ] - g_vm_ctx->module_base ) + g_vm_ctx->image_base; ( _code_block.code_block.jcc.block_addr[ 1 ] - g_vm_ctx->module_base ) + g_vm_ctx->image_base;
// setup object globals so that the tracing will work... // setup object globals so that the tracing will work...
code_block_data_t branch_block{ { _code_block.cpu_ctx->rip }, nullptr, nullptr }; code_block_data_t branch_block{ {}, nullptr, nullptr };
cc_block = &branch_block; cc_block = &branch_block;
g_vm_ctx = _code_block.g_vm_ctx.get(); g_vm_ctx = _code_block.g_vm_ctx.get();
@ -163,10 +163,10 @@ namespace vm
std::uintptr_t rbp = 0ull; std::uintptr_t rbp = 0ull;
std::uint32_t branch_rva = std::uint32_t branch_rva =
( _code_block.code_block.jcc.block_addr[ 1 ] - g_vm_ctx->module_base ) + g_vm_ctx->image_base; ( _code_block.code_block.jcc.block_addr[ 0 ] - g_vm_ctx->module_base ) + g_vm_ctx->image_base;
// setup object globals so that the tracing will work... // setup object globals so that the tracing will work...
code_block_data_t branch_block{ { _code_block.cpu_ctx->rip }, nullptr, nullptr }; code_block_data_t branch_block{ {}, nullptr, nullptr };
cc_block = &branch_block; cc_block = &branch_block;
g_vm_ctx = _code_block.g_vm_ctx.get(); g_vm_ctx = _code_block.g_vm_ctx.get();

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