Merge branch 'main' of git.mineau.eu:histausse/androscalpel
This commit is contained in:
Jean-Marie Mineau
commit
1845c9baa8
GPG key ID:
B66AEEDA9B645AD2
5 changed files with 78 additions and 155 deletions
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@ -852,19 +852,20 @@ impl Apk {
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}
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/// Convert an instruction format to an instruction.
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#[allow(clippy::type_complexity)]
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fn instruction_format_to_instruction<F>(
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format: &InsFormat,
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addr: usize,
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insns_ref: &HashMap<usize, &InsFormat>,
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dex: &DexFileReader,
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label_ins: &mut F,
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) -> Result<Option<(instructions::Instruction, HashMap<usize, String>)>>
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) -> Result<Option<(instructions::Instruction, HashMap<usize, Vec<String>>)>>
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where
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F: FnMut(&instructions::Instruction, usize) -> Option<String>,
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{
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use crate::instructions::*;
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use InsFormat::*;
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let mut labels = HashMap::new();
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let mut labels = HashMap::<_, Vec<_>>::new();
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let ins = match format.clone() {
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Format10X { op: 0x00 } => Instruction::Nop {},
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Format12X { op: 0x01, va, vb } => Instruction::Move {
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@ -1037,12 +1038,7 @@ impl Apk {
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addr - (-(a as i64) as usize)
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::Goto { label }
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}
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Format20T { op: 0x29, a } => {
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@ -1055,12 +1051,7 @@ impl Apk {
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addr - (-(a as i64) as usize)
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::Goto { label }
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}
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Format30T { op: 0x2a, a } => {
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@ -1073,12 +1064,7 @@ impl Apk {
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addr - (-(a as i64) as usize)
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::Goto { label }
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}
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Format31T { op: 0x2b, va, b } => {
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@ -1110,15 +1096,7 @@ impl Apk {
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addr - (-(target as i64) as usize)
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!(
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"There is already a label at 0x{dest_addr:08X} with \
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an invalid name"
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);
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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branches.insert(key, label);
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key += 1;
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}
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@ -1164,15 +1142,7 @@ impl Apk {
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addr - (-target as usize)
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!(
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"There is already a label at 0x{dest_addr:08X} with \
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an invalid name"
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);
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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branches.insert(key, label);
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}
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Instruction::Switch { reg: va, branches }
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@ -1257,12 +1227,7 @@ impl Apk {
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addr - (-(c as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfEq {
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a: va,
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b: vb,
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@ -1287,12 +1252,7 @@ impl Apk {
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addr - (-(c as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfNe {
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a: va,
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b: vb,
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@ -1317,12 +1277,7 @@ impl Apk {
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addr - (-(c as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfLt {
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a: va,
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b: vb,
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@ -1347,12 +1302,7 @@ impl Apk {
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addr - (-(c as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfGe {
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a: va,
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b: vb,
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@ -1377,12 +1327,7 @@ impl Apk {
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addr - (-(c as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfGt {
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a: va,
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b: vb,
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@ -1407,12 +1352,7 @@ impl Apk {
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addr - (-(c as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfLe {
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a: va,
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b: vb,
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@ -1432,12 +1372,7 @@ impl Apk {
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addr - (-(b as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfEqZ { a: va, label }
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}
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Format21T { op: 0x39, va, b } => {
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@ -1453,12 +1388,7 @@ impl Apk {
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addr - (-(b as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfNeZ { a: va, label }
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}
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Format21T { op: 0x3a, va, b } => {
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@ -1474,12 +1404,7 @@ impl Apk {
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addr - (-(b as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfLtZ { a: va, label }
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}
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Format21T { op: 0x3b, va, b } => {
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@ -1495,12 +1420,7 @@ impl Apk {
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addr - (-(b as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfGeZ { a: va, label }
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}
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Format21T { op: 0x3c, va, b } => {
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@ -1516,12 +1436,7 @@ impl Apk {
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addr - (-(b as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfGtZ { a: va, label }
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}
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Format21T { op: 0x3d, va, b } => {
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@ -1537,12 +1452,7 @@ impl Apk {
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addr - (-(b as i64)) as usize
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};
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let label = format!("label_{dest_addr:08X}");
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if let Some(old_label) = labels.insert(dest_addr, label.clone()) {
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if old_label != label {
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// TODO: internal error, panic?
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bail!("There is already a label at 0x{dest_addr:08X} with an invalid name");
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}
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}
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labels.entry(dest_addr).or_default().push(label.clone());
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Instruction::IfLeZ { a: va, label }
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}
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Format23X {
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@ -2666,7 +2576,7 @@ impl Apk {
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.with_context(|| anyhow!("Invalid instruction {ins:?} found at {addr}: {format:?}"))?;
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if let Some(label) = label_ins(&ins, addr) {
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//let label = format!("label_{addr:08X}");
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labels.insert(addr, label);
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labels.entry(addr).or_default().push(label);
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}
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Ok(Some((ins, labels)))
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@ -2705,7 +2615,7 @@ impl Apk {
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} else {
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(DebugInfo::EndOfData, None)
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};
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let mut labels: HashMap<usize, String> = HashMap::new();
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let mut labels: HashMap<usize, Vec<String>> = HashMap::new();
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let mut tries = HashMap::new();
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for TryItem {
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start_addr,
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@ -2725,12 +2635,7 @@ impl Apk {
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.get_handler_at_offset(handler_off)?;
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let default_handler = if let Some(Uleb128(addr)) = *catch_all_addr {
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let label = format!("label_{addr:08X}");
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if let Some(label_) = labels.insert(addr as usize, label.clone()) {
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if label_ != label {
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// TODO: that's an internal error
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bail!("Label collision at 0x{addr:08X}: {label_} and {label}");
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}
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}
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labels.entry(addr as usize).or_default().push(label.clone());
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Some(label)
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} else {
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None
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@ -2742,22 +2647,15 @@ impl Apk {
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} in handlers.iter().cloned()
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{
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let label = format!("label_{addr:08X}");
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if let Some(label_) = labels.insert(addr as usize, label.clone()) {
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if label_ != label {
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// TODO: that's an internal error
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bail!("Label collision at 0x{addr:08X}: {label_} and {label}");
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}
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}
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labels.entry(addr as usize).or_default().push(label.clone());
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handlers_.push((Self::get_id_type_from_idx(type_idx as usize, dex)?, label))
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}
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let dest_addr = start_addr + insn_count as u32;
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let end_label = format!("label_{dest_addr:08X}");
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if let Some(label_) = labels.insert(dest_addr as usize, end_label.clone()) {
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if label_ != end_label {
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// TODO: that's an internal error
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bail!("Label collision at 0x{dest_addr:08X}: {label_} and {end_label}");
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}
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}
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labels
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.entry(dest_addr as usize)
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.or_default()
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.push(end_label.clone());
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let try_ = Instruction::Try {
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end_label,
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handlers: handlers_,
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@ -2789,17 +2687,11 @@ impl Apk {
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)? {
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instructions.push((addr, ins));
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addr += ins_f.size() / 2;
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for (key, val) in &ins_labels {
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if let Some(val_) = ins_labels.get(key) {
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if val_ != val {
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// TODO: internal error, panic?
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bail!("Label collision at 0x{key:08X}: {val_} and {val}");
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for (addr, mut label_l) in ins_labels.into_iter() {
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labels.entry(addr).or_default().append(&mut label_l);
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}
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}
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}
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labels.extend(ins_labels);
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}
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}
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let mut insns = vec![];
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for (addr, ins) in instructions {
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while current_debug_info != DebugInfo::EndOfData
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@ -2852,9 +2744,11 @@ impl Apk {
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if let Some(try_) = tries.remove(&addr) {
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insns.push(try_);
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}
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if let Some(label) = labels.remove(&addr) {
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if let Some(label_l) = labels.remove(&addr) {
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for label in label_l.into_iter() {
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insns.push(Instruction::Label { name: label });
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}
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}
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insns.push(ins);
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}
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// notice: addr is not the same as the one in the loop, this one is computed previously
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@ -2862,9 +2756,11 @@ impl Apk {
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if let Some(try_) = tries.remove(&addr) {
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insns.push(try_);
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}
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if let Some(label) = labels.remove(&addr) {
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if let Some(label_l) = labels.remove(&addr) {
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for label in label_l.into_iter() {
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insns.push(Instruction::Label { name: label });
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}
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}
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if !labels.is_empty() {
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bail!("Could not put all label as instructions (label out of insns?)");
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}
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|
|
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|||
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|
@ -26,6 +26,12 @@ pub struct MethodCFG<'a> {
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pub nodes: Vec<MethodCFGNode<'a>>,
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}
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impl Method {
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pub fn get_cfg(&self) -> Result<MethodCFG> {
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MethodCFG::new(self)
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}
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}
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|
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impl<'a> MethodCFG<'a> {
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pub fn new(method: &'a Method) -> Result<Self> {
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let insns: &'a [Instruction] = if let Some(code) = method.code.as_ref() {
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|
|
@ -153,7 +159,6 @@ impl<'a> MethodCFG<'a> {
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last_labels.push(name.clone());
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} else {
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nodes_next_label.push(vec![]);
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last_labels.push(name.clone());
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nodes.push(MethodCFGNode {
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code_block: &insns[start_last_block..i],
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labels: last_labels,
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|
|
@ -161,7 +166,7 @@ impl<'a> MethodCFG<'a> {
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prev_nodes: vec![],
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});
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start_last_block = i;
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last_labels = vec![];
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last_labels = vec![name.clone()];
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}
|
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}
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Instruction::ReturnVoid {}
|
||||
|
|
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|||
|
|
@ -55,6 +55,10 @@ impl MethodCFG<'_> {
|
|||
}
|
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// Initialize the entry block from function signature:
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||||
let mut i = (code.registers_size - code.ins_size) as usize;
|
||||
if !self.method.is_static {
|
||||
end_block_reg_tys[0][i] = RegType::Object; // 'this'
|
||||
i += 1;
|
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}
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||||
for arg in &self.method.descriptor.proto.get_parameters() {
|
||||
if arg.is_class() || arg.is_array() {
|
||||
end_block_reg_tys[0][i] = RegType::Object;
|
||||
|
|
@ -69,11 +73,11 @@ impl MethodCFG<'_> {
|
|||
i += 1;
|
||||
}
|
||||
}
|
||||
|
||||
let mut changed = true;
|
||||
while changed {
|
||||
let mut new_end_block_reg_tys = vec![];
|
||||
for node in &self.nodes {
|
||||
// The first node is empty and depend on the function signature, it must not change
|
||||
let mut new_end_block_reg_tys = vec![end_block_reg_tys[0].clone()];
|
||||
for node in self.nodes.iter().skip(1) {
|
||||
new_end_block_reg_tys.push(transform_reg_ty(
|
||||
&merge_input(node, nb_reg, &end_block_reg_tys),
|
||||
node,
|
||||
|
|
@ -106,6 +110,7 @@ impl MethodCFG<'_> {
|
|||
);
|
||||
dot_string += " style=\"dashed\";\n";
|
||||
dot_string += " color=\"black\";\n";
|
||||
dot_string += " rankdir=\"TB\";\n";
|
||||
dot_string += &format!(
|
||||
" label=\"Register Types{}\";\n",
|
||||
self.method.descriptor.__str__()
|
||||
|
|
|
|||
|
|
@ -503,9 +503,14 @@ impl DexWriter {
|
|||
// for context
|
||||
}
|
||||
Instruction::Goto { label } => {
|
||||
let (min_addr, max_addr) = label_min_max_addrs
|
||||
.get(label)
|
||||
.ok_or(anyhow!("Label {label} not found in label estimation map"))?;
|
||||
let (min_addr, max_addr) = label_min_max_addrs.get(label).ok_or(anyhow!(
|
||||
"Label {label} not found in label estimation map but used in Goto instruction. Known labels are [{}].",
|
||||
label_min_max_addrs
|
||||
.keys()
|
||||
.map(|string| string.as_str())
|
||||
.collect::<Vec<_>>()
|
||||
.join(", ")
|
||||
))?;
|
||||
let size = Instruction::goto_size_from_branch_offset_interval(
|
||||
addr, *min_addr, *max_addr,
|
||||
)?;
|
||||
|
|
@ -820,7 +825,7 @@ impl DexWriter {
|
|||
format!(
|
||||
"Failed to convert instruction {} (found in code of {}) to raw instruction",
|
||||
ins.__repr__(),
|
||||
method_id.__repr__()
|
||||
method_id.__str__()
|
||||
)
|
||||
})?;
|
||||
addr += ins.size() / 2;
|
||||
|
|
@ -948,7 +953,8 @@ impl DexWriter {
|
|||
// No if let because ownership gunfooterie
|
||||
let code_off = if class.direct_methods.get(id).unwrap().code.is_some() {
|
||||
let code_off = self.section_manager.get_aligned_size(Section::CodeItem);
|
||||
self.insert_code_item(id.clone(), true)?;
|
||||
self.insert_code_item(id.clone(), true)
|
||||
.with_context(|| format!("Failed to serialize code of {}", id.__str__()))?;
|
||||
Uleb128(code_off + 1)
|
||||
} else {
|
||||
Uleb128(0)
|
||||
|
|
@ -983,7 +989,8 @@ impl DexWriter {
|
|||
// No if let because ownership gunfooterie
|
||||
let code_off = if class.virtual_methods.get(id).unwrap().code.is_some() {
|
||||
let code_off = self.section_manager.get_aligned_size(Section::CodeItem);
|
||||
self.insert_code_item(id.clone(), false)?;
|
||||
self.insert_code_item(id.clone(), false)
|
||||
.with_context(|| format!("Failed to serialize code of {}", id.__str__()))?;
|
||||
Uleb128(code_off + 1)
|
||||
} else {
|
||||
Uleb128(0)
|
||||
|
|
|
|||
|
|
@ -1978,8 +1978,13 @@ macro_rules! sanity_check_22b_or_22s {
|
|||
macro_rules! raw_ins_if {
|
||||
($ins_op:tt, $label_addrs:ident, $label:ident, $addr:ident, $r1:ident, $r2:ident) => {{
|
||||
let label_addr = $label_addrs.get($label).ok_or(anyhow!(
|
||||
"Label {} not found in code, but found `if` with this label",
|
||||
"Label {} not found in code, but found `if` with this label. Known labels are [{}].",
|
||||
$label,
|
||||
$label_addrs
|
||||
.keys()
|
||||
.map(|string| string.as_str())
|
||||
.collect::<Vec<_>>()
|
||||
.join(", ")
|
||||
))?;
|
||||
let branch_offset = *label_addr as i32 - $addr as i32;
|
||||
if branch_offset > i16::MAX as i32 || branch_offset < i16::MIN as i32 {
|
||||
|
|
@ -1997,8 +2002,13 @@ macro_rules! raw_ins_if {
|
|||
macro_rules! raw_ins_ifz {
|
||||
($ins_op:tt, $label_addrs:ident, $label:ident, $addr:ident, $r1:ident) => {{
|
||||
let label_addr = $label_addrs.get($label).ok_or(anyhow!(
|
||||
"Label {} not found in code, but found `if` with this label",
|
||||
"Label {} not found in code, but found `if` with this label. Known labels are [{}].",
|
||||
$label,
|
||||
$label_addrs
|
||||
.keys()
|
||||
.map(|string| string.as_str())
|
||||
.collect::<Vec<_>>()
|
||||
.join(", ")
|
||||
))?;
|
||||
let branch_offset = *label_addr as i32 - $addr as i32;
|
||||
if branch_offset > i16::MAX as i32 || branch_offset < i16::MIN as i32 {
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue