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only plug in jumping immediates to jump_dest_vaddr paths in stepping; ctrl flow info analysis path stops when it has to read memory or registers

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This commit is contained in:
Ryan Fleury
2024-10-23 11:07:51 -07:00
parent 6d7858d445
commit bcd16a4f29
2 changed files with 11 additions and 1 deletions
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src/dasm_cache/dasm_cache.c
+8 -1
View File
@@ -41,7 +41,14 @@ dasm_inst_from_code(Arena *arena, Arch arch, U64 vaddr, String8 code, DASM_Synta
ZydisDecodedOperand *first_visible_op = (zinst.info.operand_count_visible > 0 ? &zinst.operands[0] : 0);
ZydisDecodedOperand *first_op = (zinst.info.operand_count > 0 ? &zinst.operands[0] : 0);
ZydisDecodedOperand *second_op = (zinst.info.operand_count > 1 ? &zinst.operands[1] : 0);
if(first_visible_op != 0)
if(first_visible_op != 0 &&
(first_visible_op->encoding == ZYDIS_OPERAND_ENCODING_JIMM8 ||
first_visible_op->encoding == ZYDIS_OPERAND_ENCODING_JIMM16 ||
first_visible_op->encoding == ZYDIS_OPERAND_ENCODING_JIMM32 ||
first_visible_op->encoding == ZYDIS_OPERAND_ENCODING_JIMM64 ||
first_visible_op->encoding == ZYDIS_OPERAND_ENCODING_JIMM16_32_64 ||
first_visible_op->encoding == ZYDIS_OPERAND_ENCODING_JIMM32_32_64 ||
first_visible_op->encoding == ZYDIS_OPERAND_ENCODING_JIMM16_32_32))
{
ZydisCalcAbsoluteAddress(&zinst.info, first_visible_op, vaddr, &jump_dest_vaddr);
}
src/task_system/task_system.c
+3
View File
@@ -1,3 +1,6 @@
// Copyright (c) 2024 Epic Games Tools
// Licensed under the MIT license (https://opensource.org/license/mit/)
////////////////////////////////
//~ rjf: Basic Type Functions