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Specify address via parameter

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This allows to decode instructions where the address of the buffer is
not the address of the instruction.
This commit is contained in:
Alexis Engelke
2019-01-14 19:52:03 +01:00
parent 55f6fda583
commit a799024066
3 changed files with 8 additions and 5 deletions
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7
decode.c
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@@ -358,7 +358,8 @@ struct InstrDesc
#define DESC_IMM_BYTE(desc) (((desc)->immediate >> 7) & 1)
int
decode(const uint8_t* buffer, int len, DecodeMode mode, Instr* instr)
decode(const uint8_t* buffer, int len, DecodeMode mode, uintptr_t address,
Instr* instr)
{
const uint8_t* decode_table = NULL;
@@ -453,7 +454,7 @@ decode(const uint8_t* buffer, int len, DecodeMode mode, Instr* instr)
instr->flags = prefixes & 0x7f;
if (mode == DECODE_64)
instr->flags |= INSTR_FLAG_64;
instr->address = (uintptr_t) buffer;
instr->address = address;
uint8_t op_size = 0;
if (desc->gp_size_8)
@@ -630,7 +631,7 @@ decode(const uint8_t* buffer, int len, DecodeMode mode, Instr* instr)
if (imm_control == 4)
{
instr->immediate += (uintptr_t) buffer + off;
instr->immediate += instr->address + off;
}
struct Operand* operand = &instr->operands[DESC_IMM_IDX(desc)];