use crate::*;
use minidump::format::CONTEXT_ARM;
use minidump::system_info::{Cpu, Os};
use std::collections::HashMap;
use test_assembler::*;
struct TestFixture {
pub raw: CONTEXT_ARM,
pub modules: MinidumpModuleList,
pub system_info: SystemInfo,
pub symbols: HashMap<String, String>,
}
impl TestFixture {
pub fn new() -> TestFixture {
TestFixture {
raw: CONTEXT_ARM::default(),
modules: MinidumpModuleList::from_modules(vec![
MinidumpModule::new(0x40000000, 0x10000, "module1"),
MinidumpModule::new(0x50000000, 0x10000, "module2"),
]),
system_info: SystemInfo {
os: Os::Ios,
os_version: None,
os_build: None,
cpu: Cpu::Arm,
cpu_info: None,
cpu_microcode_version: None,
cpu_count: 1,
},
symbols: HashMap::new(),
}
}
pub async fn walk_stack(&self, stack: Section) -> CallStack {
let context = MinidumpContext {
raw: MinidumpRawContext::Arm(self.raw.clone()),
valid: MinidumpContextValidity::All,
};
let base = stack.start().value().unwrap();
let size = stack.size();
let stack = stack.get_contents().unwrap();
let stack_memory = MinidumpMemory {
desc: Default::default(),
base_address: base,
size,
bytes: &stack,
endian: scroll::LE,
};
let symbolizer = Symbolizer::new(string_symbol_supplier(self.symbols.clone()));
let mut stack = CallStack::with_context(context);
walk_stack(
0,
(),
&mut stack,
Some(UnifiedMemory::Memory(&stack_memory)),
&self.modules,
&self.system_info,
&symbolizer,
)
.await;
stack
}
pub fn add_symbols(&mut self, name: String, symbols: String) {
self.symbols.insert(name, symbols);
}
}
#[tokio::test]
async fn test_simple() {
let mut f = TestFixture::new();
let stack = Section::new();
stack.start().set_const(0x80000000);
f.raw.set_register("pc", 0x4000c020);
f.raw.set_register("fp", 0x80000000);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 1);
let f = &s.frames[0];
let m = f.module.as_ref().unwrap();
assert_eq!(m.code_file(), "module1");
}
#[tokio::test]
async fn test_scan_without_symbols() {
let mut f = TestFixture::new();
let mut stack = Section::new();
stack.start().set_const(0x80000000);
let return_address1 = 0x50000100u32;
let return_address2 = 0x50000900u32;
let frame1_sp = Label::new();
let frame2_sp = Label::new();
stack = stack
.append_repeated(0, 16) .D32(0x40090000) .D32(0x60000000) .D32(return_address1) .mark(&frame1_sp)
.append_repeated(0, 16) .D32(0xF0000000) .D32(0x0000000D)
.D32(return_address2) .mark(&frame2_sp)
.append_repeated(0, 32);
f.raw.set_register("pc", 0x40005510);
f.raw.set_register("fp", 0x00000001);
f.raw
.set_register("sp", stack.start().value().unwrap() as u32);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 3);
{
let frame = &s.frames[0];
assert_eq!(frame.trust, FrameTrust::Context);
assert_eq!(frame.context.valid, MinidumpContextValidity::All);
}
{
let frame = &s.frames[1];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::Scan);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 2);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address1);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame1_sp.value().unwrap() as u32
);
} else {
unreachable!();
}
}
{
let frame = &s.frames[2];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::Scan);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 2);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address2);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame2_sp.value().unwrap() as u32
);
} else {
unreachable!();
}
}
}
#[tokio::test]
async fn test_scan_first_frame() {
let mut f = TestFixture::new();
let mut stack = Section::new();
stack.start().set_const(0x80000000);
let return_address1 = 0x50000100u32;
let return_address2 = 0x50000900u32;
let frame1_sp = Label::new();
let frame2_sp = Label::new();
stack = stack
.append_repeated(0, 16) .D32(0x40090000) .D32(0x60000000) .append_repeated(0, 96) .D32(return_address1) .mark(&frame1_sp)
.append_repeated(0, 32) .D32(0xF0000000) .D32(0x0000000D)
.append_repeated(0, 336) .D32(return_address2) .mark(&frame2_sp)
.append_repeated(0, 64);
f.raw.set_register("pc", 0x40005510);
f.raw.set_register("fp", 0x00000001);
f.raw
.set_register("sp", stack.start().value().unwrap() as u32);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 2);
{
let frame = &s.frames[0];
assert_eq!(frame.trust, FrameTrust::Context);
assert_eq!(frame.context.valid, MinidumpContextValidity::All);
}
{
let frame = &s.frames[1];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::Scan);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 2);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address1);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame1_sp.value().unwrap() as u32
);
} else {
unreachable!();
}
}
}
#[tokio::test]
async fn test_invalid_lr() {
let mut f = TestFixture::new();
f.system_info.os = Os::Linux;
let mut stack = Section::new();
stack.start().set_const(0x80000000);
let lr = Label::new();
let return_address1 = 0x50000100u32;
let return_address2 = 0x50000900u32;
let frame1_sp = Label::new();
let frame2_sp = Label::new();
let frame1_fp = Label::new();
let frame2_fp = Label::new();
stack = stack
.append_repeated(0, 32) .mark(&lr) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame1_fp) .D32(&frame2_fp) .D32(return_address1) .mark(&frame1_sp)
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame2_fp)
.D32(0)
.D32(return_address2)
.mark(&frame2_sp);
f.raw.set_register("pc", 0x40005510);
f.raw.set_register("lr", lr.value().unwrap() as u32);
f.raw.set_register("fp", frame1_fp.value().unwrap() as u32);
f.raw
.set_register("sp", stack.start().value().unwrap() as u32);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 3);
{
let frame = &s.frames[0];
assert_eq!(frame.trust, FrameTrust::Context);
assert_eq!(frame.context.valid, MinidumpContextValidity::All);
}
{
let frame = &s.frames[1];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::Scan);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 2);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address1);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame1_sp.value().unwrap() as u32
);
} else {
unreachable!();
}
}
{
let frame = &s.frames[2];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::Scan);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 2);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address2);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame2_sp.value().unwrap() as u32
);
} else {
unreachable!();
}
}
}
#[tokio::test]
async fn test_frame_pointer() {
let mut f = TestFixture::new();
let mut stack = Section::new();
stack.start().set_const(0x80000000);
let return_address1 = 0x50000100u32;
let return_address2 = 0x50000900u32;
let frame1_sp = Label::new();
let frame2_sp = Label::new();
let frame0_fp = Label::new();
let frame1_fp = Label::new();
let frame2_fp = Label::new();
stack = stack
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame0_fp) .D32(&frame1_fp) .D32(return_address1) .mark(&frame1_sp)
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame1_fp)
.D32(&frame2_fp)
.D32(return_address2)
.mark(&frame2_sp)
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame2_fp)
.D32(0)
.D32(0);
f.raw.set_register("pc", 0x40005510);
f.raw.set_register("lr", return_address1);
f.raw.set_register("fp", frame0_fp.value().unwrap() as u32);
f.raw
.set_register("sp", stack.start().value().unwrap() as u32);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 3);
{
let frame = &s.frames[0];
assert_eq!(frame.trust, FrameTrust::Context);
assert_eq!(frame.context.valid, MinidumpContextValidity::All);
}
{
let frame = &s.frames[1];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::FramePointer);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 3);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address1);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame1_sp.value().unwrap() as u32
);
assert_eq!(
ctx.get_register("fp", valid).unwrap(),
frame1_fp.value().unwrap() as u32
);
} else {
unreachable!();
}
}
{
let frame = &s.frames[2];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::FramePointer);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 3);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address2);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame2_sp.value().unwrap() as u32
);
assert_eq!(
ctx.get_register("fp", valid).unwrap(),
frame2_fp.value().unwrap() as u32
);
} else {
unreachable!();
}
}
}
#[tokio::test]
async fn test_frame_pointer_stackless_leaf() {
let mut f = TestFixture::new();
let mut stack = Section::new();
stack.start().set_const(0x80000000);
let return_address1 = 0x50000100u32;
let return_address2 = 0x50000900u32;
let frame1_sp = Label::new();
let frame2_sp = Label::new();
let frame1_fp = Label::new();
let frame2_fp = Label::new();
stack = stack
.mark(&frame1_sp)
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame1_fp)
.D32(&frame2_fp)
.D32(return_address2)
.mark(&frame2_sp)
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame2_fp)
.D32(0)
.D32(0);
f.raw.set_register("pc", 0x40005510);
f.raw.set_register("lr", return_address1); f.raw.set_register("fp", frame1_fp.value().unwrap() as u32);
f.raw
.set_register("sp", stack.start().value().unwrap() as u32);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 2);
{
let frame = &s.frames[0];
assert_eq!(frame.trust, FrameTrust::Context);
assert_eq!(frame.context.valid, MinidumpContextValidity::All);
}
{
let frame = &s.frames[1];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::FramePointer);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 3);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address2);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame2_sp.value().unwrap() as u32
);
assert_eq!(
ctx.get_register("fp", valid).unwrap(),
frame2_fp.value().unwrap() as u32
);
} else {
unreachable!();
}
}
}
#[tokio::test]
async fn test_frame_pointer_stackful_leaf() {
let mut f = TestFixture::new();
let mut stack = Section::new();
stack.start().set_const(0x80000000);
let return_address1 = 0x50000100u32;
let return_address2 = 0x50000900u32;
let frame1_sp = Label::new();
let frame2_sp = Label::new();
let frame1_fp = Label::new();
let frame2_fp = Label::new();
stack = stack
.append_repeated(0, 64) .D64(0x0000000D) .D64(0xF0000000) .mark(&frame1_sp)
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame1_fp)
.D32(&frame2_fp)
.D32(return_address2)
.mark(&frame2_sp)
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame2_fp)
.D32(0)
.D32(0);
f.raw.set_register("pc", 0x40005510);
f.raw.set_register("lr", return_address1); f.raw.set_register("fp", frame1_fp.value().unwrap() as u32);
f.raw
.set_register("sp", stack.start().value().unwrap() as u32);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 2);
{
let frame = &s.frames[0];
assert_eq!(frame.trust, FrameTrust::Context);
assert_eq!(frame.context.valid, MinidumpContextValidity::All);
}
{
let frame = &s.frames[1];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::FramePointer);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 3);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address2);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame2_sp.value().unwrap() as u32
);
assert_eq!(
ctx.get_register("fp", valid).unwrap(),
frame2_fp.value().unwrap() as u32
);
} else {
unreachable!();
}
}
}
#[tokio::test]
async fn test_frame_pointer_infinite_equality() {
let mut f = TestFixture::new();
let mut stack = Section::new();
stack.start().set_const(0x80000000);
let return_address1 = 0x50000100u32;
let return_address2 = 0x50000900u32;
let frame1_sp = Label::new();
let frame2_sp = Label::new();
let frame0_fp = Label::new();
let frame1_fp = Label::new();
let frame2_fp = Label::new();
stack = stack
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame0_fp) .D32(&frame0_fp) .D32(return_address1) .mark(&frame1_sp)
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame1_fp)
.D32(&frame2_fp)
.D32(return_address2)
.mark(&frame2_sp)
.append_repeated(0, 32) .D32(0x0000000D) .D32(0xF0000000) .mark(&frame2_fp)
.D32(0)
.D32(0);
f.raw.set_register("pc", 0x40005510);
f.raw.set_register("lr", return_address1);
f.raw.set_register("fp", frame0_fp.value().unwrap() as u32);
f.raw
.set_register("sp", stack.start().value().unwrap() as u32);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 2);
{
let frame = &s.frames[0];
assert_eq!(frame.trust, FrameTrust::Context);
assert_eq!(frame.context.valid, MinidumpContextValidity::All);
}
{
let frame = &s.frames[1];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::FramePointer);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 3);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address1);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame1_sp.value().unwrap() as u32
);
assert_eq!(
ctx.get_register("fp", valid).unwrap(),
frame0_fp.value().unwrap() as u32
);
} else {
unreachable!();
}
}
}
const CALLEE_SAVE_REGS: &[&str] = &["pc", "sp", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "fp"];
fn init_cfi_state() -> (TestFixture, Section, CONTEXT_ARM, MinidumpContextValidity) {
let mut f = TestFixture::new();
let symbols = [
"FUNC 4000 1000 10 enchiridion\n",
"STACK CFI INIT 4000 100 .cfa: sp .ra: lr\n",
"STACK CFI 4001 .cfa: sp 12 + r4: .cfa 12 - ^",
" r11: .cfa 8 - ^ .ra: .cfa 4 - ^\n",
"STACK CFI 4002 r4: r0 r5: r1 r6: r2 r7: r3\n",
"STACK CFI 4003 .cfa: sp 16 + r1: .cfa 16 - ^",
" r4: r4 r5: r5 r6: r6 r7: r7\n",
"STACK CFI 4005 .cfa: sp 12 + r1: .cfa 12 - ^",
" r11: .cfa 4 - ^ .ra: .cfa ^ sp: .cfa 4 +\n",
"STACK CFI 4006 .cfa: sp 16 + pc: .cfa 16 - ^\n",
"FUNC 5000 1000 10 epictetus\n",
"STACK CFI INIT 5000 1000 .cfa: 0 .ra: 0\n",
"FUNC 6000 1000 20 palinal\n",
"STACK CFI INIT 6000 1000 .cfa: sp 4 - .ra: lr\n",
"FUNC 7000 1000 20 rhetorical\n",
"STACK CFI INIT 7000 1000 .cfa: moot .ra: ambiguous\n",
];
f.add_symbols(String::from("module1"), symbols.concat());
f.raw.set_register("pc", 0x40005510);
f.raw.set_register("sp", 0x80000000);
f.raw.set_register("fp", 0x8112e110);
f.raw.iregs[4] = 0xb5d55e68;
f.raw.iregs[5] = 0xebd134f3;
f.raw.iregs[6] = 0xa31e74bc;
f.raw.iregs[7] = 0x2dcb16b3;
f.raw.iregs[8] = 0x2ada2137;
f.raw.iregs[9] = 0xbbbb557d;
f.raw.iregs[10] = 0x48bf8ca7;
let raw_valid = MinidumpContextValidity::All;
let expected = f.raw.clone();
let expected_regs = CALLEE_SAVE_REGS;
let expected_valid = MinidumpContextValidity::Some(expected_regs.iter().copied().collect());
let stack = Section::new();
stack
.start()
.set_const(f.raw.get_register("sp", &raw_valid).unwrap() as u64);
(f, stack, expected, expected_valid)
}
async fn check_cfi(
f: TestFixture,
stack: Section,
expected: CONTEXT_ARM,
expected_valid: MinidumpContextValidity,
) {
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 2);
{
let frame = &s.frames[0];
assert_eq!(frame.trust, FrameTrust::Context);
assert_eq!(frame.context.valid, MinidumpContextValidity::All);
}
{
if let MinidumpContextValidity::Some(ref expected_regs) = expected_valid {
let frame = &s.frames[1];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::CallFrameInfo);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), expected_regs.len());
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
for reg in expected_regs {
assert_eq!(
ctx.get_register(reg, valid),
expected.get_register(reg, &expected_valid),
"{reg} registers didn't match!"
);
}
return;
}
}
}
unreachable!();
}
#[tokio::test]
async fn test_cfi_at_4000() {
let (mut f, mut stack, expected, expected_valid) = init_cfi_state();
stack = stack.append_repeated(0, 120);
f.raw.set_register("pc", 0x40004000);
f.raw.set_register("lr", 0x40005510);
check_cfi(f, stack, expected, expected_valid).await;
}
#[tokio::test]
async fn test_cfi_at_4001() {
let (mut f, mut stack, mut expected, expected_valid) = init_cfi_state();
let frame1_sp = Label::new();
stack = stack
.D32(0xb5d55e68) .D32(0x8112e110) .D32(0x40005510) .mark(&frame1_sp)
.append_repeated(0, 120);
expected.set_register("sp", frame1_sp.value().unwrap() as u32);
f.raw.set_register("pc", 0x40004001);
f.raw.iregs[4] = 0x635adc9f;
f.raw.set_register("fp", 0xbe145fc4);
check_cfi(f, stack, expected, expected_valid).await;
}
#[tokio::test]
async fn test_cfi_at_4002() {
let (mut f, mut stack, mut expected, expected_valid) = init_cfi_state();
let frame1_sp = Label::new();
stack = stack
.D32(0xfb81ff3d) .D32(0x8112e110) .D32(0x40005510) .mark(&frame1_sp)
.append_repeated(0, 120);
expected.set_register("sp", frame1_sp.value().unwrap() as u32);
f.raw.set_register("pc", 0x40004002);
f.raw.iregs[0] = 0xb5d55e68; f.raw.iregs[1] = 0xebd134f3; f.raw.iregs[2] = 0xa31e74bc; f.raw.iregs[3] = 0x2dcb16b3; f.raw.iregs[4] = 0xfdd35466; f.raw.iregs[5] = 0xf18c946c; f.raw.iregs[6] = 0xac2079e8; f.raw.iregs[7] = 0xa449829f; f.raw.set_register("fp", 0xbe145fc4);
check_cfi(f, stack, expected, expected_valid).await;
}
#[tokio::test]
async fn test_cfi_at_4003() {
let (mut f, mut stack, mut expected, mut expected_valid) = init_cfi_state();
let frame1_sp = Label::new();
stack = stack
.D32(0x48c8dd5a) .D32(0xcb78040e) .D32(0x8112e110) .D32(0x40005510) .mark(&frame1_sp)
.append_repeated(0, 120);
expected.set_register("sp", frame1_sp.value().unwrap() as u32);
expected.iregs[1] = 0x48c8dd5a;
if let MinidumpContextValidity::Some(ref mut which) = expected_valid {
which.insert("r1");
} else {
unreachable!();
}
f.raw.set_register("pc", 0x40004003);
f.raw.iregs[1] = 0xfb756319;
check_cfi(f, stack, expected, expected_valid).await;
}
#[tokio::test]
async fn test_cfi_at_4004() {
let (mut f, mut stack, mut expected, mut expected_valid) = init_cfi_state();
let frame1_sp = Label::new();
stack = stack
.D32(0x48c8dd5a) .D32(0xcb78040e) .D32(0x8112e110) .D32(0x40005510) .mark(&frame1_sp)
.append_repeated(0, 120);
expected.set_register("sp", frame1_sp.value().unwrap() as u32);
expected.iregs[1] = 0x48c8dd5a;
if let MinidumpContextValidity::Some(ref mut which) = expected_valid {
which.insert("r1");
} else {
unreachable!();
}
f.raw.set_register("pc", 0x40004004);
f.raw.iregs[1] = 0xfb756319;
check_cfi(f, stack, expected, expected_valid).await;
}
#[tokio::test]
async fn test_cfi_at_4005() {
let (mut f, mut stack, mut expected, mut expected_valid) = init_cfi_state();
let frame1_sp = Label::new();
stack = stack
.D32(0x48c8dd5a) .D32(0xf013f841) .D32(0x8112e110) .D32(0x40005510) .mark(&frame1_sp)
.append_repeated(0, 120);
expected.set_register("sp", frame1_sp.value().unwrap() as u32);
expected.iregs[1] = 0x48c8dd5a;
if let MinidumpContextValidity::Some(ref mut which) = expected_valid {
which.insert("r1");
} else {
unreachable!();
}
f.raw.set_register("pc", 0x40004005);
f.raw.iregs[1] = 0xfb756319;
check_cfi(f, stack, expected, expected_valid).await;
}
#[tokio::test]
async fn test_cfi_at_4006() {
let (mut f, mut stack, mut expected, mut expected_valid) = init_cfi_state();
let frame1_sp = Label::new();
stack = stack
.D32(0x40005510) .D32(0x48c8dd5a) .D32(0xf013f841) .D32(0x8112e110) .D32(0xf8d15783) .mark(&frame1_sp)
.append_repeated(0, 120);
expected.set_register("sp", frame1_sp.value().unwrap() as u32);
expected.iregs[1] = 0x48c8dd5a;
if let MinidumpContextValidity::Some(ref mut which) = expected_valid {
which.insert("r1");
} else {
unreachable!();
}
f.raw.set_register("pc", 0x40004006);
f.raw.iregs[1] = 0xfb756319;
check_cfi(f, stack, expected, expected_valid).await;
}
#[tokio::test]
async fn test_cfi_reject_backwards() {
let (mut f, mut stack, _expected, _expected_valid) = init_cfi_state();
stack = stack.append_repeated(0, 120);
f.raw.set_register("pc", 0x40006000);
f.raw.set_register("sp", 0x80000000);
f.raw.set_register("lr", 0x40005510);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 1);
}
#[tokio::test]
async fn test_cfi_reject_bad_exprs() {
let (mut f, mut stack, _expected, _expected_valid) = init_cfi_state();
stack = stack.append_repeated(0, 120);
f.raw.set_register("pc", 0x40007000);
f.raw.set_register("sp", 0x80000000);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 1);
}
#[tokio::test]
async fn test_frame_pointer_overflow() {
type Pointer = u32;
let stack_max: Pointer = Pointer::MAX;
let stack_size: Pointer = 1000;
let bad_frame_ptr: Pointer = stack_max;
let mut f = TestFixture::new();
let mut stack = Section::new();
let stack_start: Pointer = stack_max - stack_size;
stack.start().set_const(stack_start as u64);
stack = stack
.append_repeated(0, stack_size as usize);
f.raw.set_register("pc", 0x7a100000);
f.raw.set_register("fp", bad_frame_ptr);
f.raw
.set_register("sp", stack.start().value().unwrap() as Pointer);
f.raw.set_register("lr", 0x7b302000);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 1);
}
#[tokio::test]
async fn test_frame_pointer_overflow_nonsense_32bit_stack() {
type Pointer = u32;
let pointer_size: u64 = std::mem::size_of::<Pointer>() as u64;
let stack_max: u64 = Pointer::MAX as u64 + pointer_size * 2;
let stack_size: u64 = 1000;
let bad_frame_ptr: u64 = Pointer::MAX as u64 - pointer_size;
let mut f = TestFixture::new();
let mut stack = Section::new();
let stack_start: u64 = stack_max - stack_size;
stack.start().set_const(stack_start);
stack = stack
.append_repeated(0, 1000);
f.raw.set_register("pc", 0x7a100000);
f.raw.set_register("fp", bad_frame_ptr as u32);
f.raw
.set_register("sp", stack.start().value().unwrap() as Pointer);
f.raw.set_register("lr", 0x7b302000);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 1);
}
#[tokio::test]
async fn test_frame_pointer_barely_no_overflow() {
let mut f = TestFixture::new();
let mut stack = Section::new();
type Pointer = u32;
let stack_max: Pointer = Pointer::MAX;
let pointer_size: Pointer = std::mem::size_of::<Pointer>() as Pointer;
let stack_size: Pointer = pointer_size * 3;
let stack_start: Pointer = stack_max - stack_size;
let return_address: Pointer = 0x7b302000;
stack.start().set_const(stack_start as u64);
let frame0_fp = Label::new();
let frame1_sp = Label::new();
let frame1_fp = Label::new();
stack = stack
.mark(&frame0_fp)
.D32(&frame1_fp) .D32(return_address) .mark(&frame1_sp)
.mark(&frame1_fp) .D32(0);
f.raw.set_register("pc", 0x7a100000);
f.raw
.set_register("fp", frame0_fp.value().unwrap() as Pointer);
f.raw
.set_register("sp", stack.start().value().unwrap() as Pointer);
f.raw.set_register("lr", return_address);
let s = f.walk_stack(stack).await;
assert_eq!(s.frames.len(), 2);
{
let frame = &s.frames[0];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::Context);
assert_eq!(frame.context.valid, MinidumpContextValidity::All);
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(
ctx.get_register("fp", valid).unwrap(),
frame0_fp.value().unwrap() as Pointer
);
} else {
unreachable!();
}
}
{
let frame = &s.frames[1];
let valid = &frame.context.valid;
assert_eq!(frame.trust, FrameTrust::FramePointer);
if let MinidumpContextValidity::Some(ref which) = valid {
assert_eq!(which.len(), 3);
} else {
unreachable!();
}
if let MinidumpRawContext::Arm(ctx) = &frame.context.raw {
assert_eq!(ctx.get_register("pc", valid).unwrap(), return_address);
assert_eq!(
ctx.get_register("sp", valid).unwrap(),
frame1_sp.value().unwrap() as Pointer
);
assert_eq!(
ctx.get_register("fp", valid).unwrap(),
frame1_fp.value().unwrap() as Pointer
);
} else {
unreachable!();
}
}
}