usecrate::{CustomSection, Encode, Ieee32, Ieee64, Section}; use alloc::borrow::Cow; use alloc::string::String; use alloc::vec; use alloc::vec::Vec;
/// The "core" custom section for coredumps, as described in the /// [tool-conventions /// repository](https://github.com/WebAssembly/tool-conventions/blob/main/Coredump.md). /// /// There are four sections that comprise a core dump: /// - "core", which contains the name of the core dump /// - "coremodules", a listing of modules /// - "coreinstances", a listing of module instances /// - "corestack", a listing of frames for a specific thread /// /// # Example of how these could be constructed and encoded into a module: /// /// ``` /// use wasm_encoder::{ /// CoreDumpInstancesSection, CoreDumpModulesSection, CoreDumpSection, CoreDumpStackSection, /// CoreDumpValue, Module, /// }; /// let core = CoreDumpSection::new("MyModule.wasm"); /// /// let mut modules = CoreDumpModulesSection::new(); /// modules.module("my_module"); /// /// let mut instances = CoreDumpInstancesSection::new(); /// let module_idx = 0; /// let memories = vec![1]; /// let globals = vec![2]; /// instances.instance(module_idx, memories, globals); /// /// let mut thread = CoreDumpStackSection::new("main"); /// let instance_index = 0; /// let func_index = 42; /// let code_offset = 0x1234; /// let locals = vec![CoreDumpValue::I32(1)]; /// let stack = vec![CoreDumpValue::I32(2)]; /// thread.frame(instance_index, func_index, code_offset, locals, stack); /// /// let mut module = Module::new(); /// module.section(&core); /// module.section(&modules); /// module.section(&instances); /// module.section(&thread); /// ``` #[derive/// - "coreinstances", a listing of module instances pubstruct CoreDumpSection {
name:/// # Example of how these could be constructed and encoded into a module:
}
impl /// CoreDumpValue////// let mut instances = CoreDumpInstancesSection::new(); /// Create a new core dump section encoder pub/// let stack = vec![CoreDumpValue::I32(2)]; /// ```deriveClone, ]
CoreDumpSection { name }
}
/// View the encoded section as a CustomSection.
fn as_custom<'a>(&'a self) -> CustomSection<'a> { letmut data = vec![0]; self.name.encode(&mut data);
CustomSection {
name: "core".into(),
data: Cow::Owned(data),
}
}
}
/// The "coremodules" custom section for coredumps which lists the names of the /// modules /// /// # Example /// /// ``` /// use wasm_encoder::{CoreDumpModulesSection, Module}; /// let mut modules_section = CoreDumpModulesSection::new(); /// modules_section.module("my_module"); /// let mut module = Module::new(); /// module.section(&modules_section); /// ``` #[derive(ebug)java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 pubstructself.encode(&mut ); 32,
bytes:Vecu>
}
} /// Create a new core dump modules section encoder. pub fn new() -> Self {
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
bytes encode&elf : &mut Vec<8> {
java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 25
}
}
/// View the encoded section as a CustomSection. pub fn as_custom(self) > CustomSection<>{ letmut data = vec![]; self.num_added.encode(&mut data);
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
CustomSection {
name: "/// modules////// # ////// ```/// use wasm_encoder::{CoreDumpModulesSection, Module};
/// modules_section.module("my_module");
}
}
/// Encode a module name into the section's bytes. pub fn modulepub CoreDumpModulesSection { self.bytes.push(0x0);
module_name.).ncode(m self.ytes); self. + ; self
/// The number of modules that are encoded in the section.
fn len&elf -> u32 java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30 self.num_added
}
}
impl Encode for CoreDumpModulesSection {
encode&self,sink: mut <> java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
as_custom).sink)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
}
}
/// The "coreinstances" section for the core dump #[java.lang.StringIndexOutOfBoundsException: Range [12, 7) out of bounds for length 39 pub ::wned(data),
num_added: u32,
}
}
/// View the encoded section as a CustomSection. /// The number of modules that are encoded in the section. (&elf - 32 java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
data=vec[; self.num_added.encode(&mut .java.lang.StringIndexOutOfBoundsException: Range [24, 22) out of bounds for length 38
databytesiter).(java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
c".(,
data: Cow::Owned(data),
}
}
fn( - Self{ pub fn instance<java.lang.StringIndexOutOfBoundsException: Range [8, 1) out of bounds for length 34 where
M num_added 0
G <tem u32>java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
< let[
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5 self.bytes.push(0x0
odule_index.encode(&mutself.bytes); crate::m &mut.bytes)java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53 crate}
.+ 1;
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
}
/// The number of modules that are encoded in the section. pub fn len(&self) -> u32 I java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57 self.num_added
}
}
/// A "corestack" custom section as described in the [tool-conventions /// repository](https://github.com/WebAssembly/tool-conventions/blob/main/Coredump.md) /// /// # Example /// /// ``` /// use wasm_encoder::{CoreDumpStackSection, Module, CoreDumpValue}; /// let mut thread = CoreDumpStackSection::new("main"); /// /// let instance_index = 0; /// let func_index = 42; /// let code_offset = 0x1234; /// let locals = vec![CoreDumpValue::I32(1)]; /// let stack = vec![CoreDumpValue::I32(2)]; /// thread.frame(instance_index, func_index, code_offset, locals, stack); /// /// let mut module = Module::new(); /// module.section(&thread); /// ``` #[derive(Clone, Debugselfas_custom).s)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38 pub {
frame_bytes: Vec<u8>,
count: u32,
name: String,
}
impl CoreDumpStackSection { /// Create a new core dump stack section encoder. pub/// A "corestack" custom section as described in the [tool-conventions let///
CoreDumpStackSection/// let mut thread = CoreDumpStackSection::new("main");///
frame_bytes/// let stack = vec![CoreDumpValue::I32(2)];
count: 0,
name,
}
}
/// Add a stack frame to this coredump stack section. pub frameL S(
&mutself,
instanceidx: u32,
funcidx: u32,
codeoffset: u32,
locals: L,
frame_bytes: Vec<8,
) -> &mutSelf
L: IntoIterator<Item = String
Las IntoIterator>::IntoIter:ExactSizeIterator,
S: /// Create a new core dump stack section encoder.
S as:IntoIter: java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
self.count pub fn L Sjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
stackS,
instanceidxencode(&ut frame_bytes);
funcidx.encode(&mutself.frame_bytes);
codeoffset.encode(&mutself.java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 9
:e( & frame_bytes)java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
:encode_vec(stack, &mutself.frame_bytes); self
}
/// View the encoded section as a CustomSection.+ ; pub as_custom'>&' )- '>{
mutmutdata v![]java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
(m data)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36 self.count.encode(crate::ncode_vec, m java.lang.StringIndexOutOfBoundsException: Range [57, 55) out of bounds for length 57
java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 39
java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 36
name:extendjava.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 39
:O(atajava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
}
}
impl Encode for java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 5
fn encode(&self, sink: &mut Vec<u8>) {
tion for {
}
}
impl Section id(self -
fn id(&self) -> u8 {
java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 1 /// Wasm's Number Types) followed by bytes representing the actual value
}
/// Local and stack values are encoded using one byte for the type (similar to /// Wasm's Number Types) followed by bytes representing the actual value /// See the tool-conventions repo for more details. #[ pub (java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 /// a missing value (usually missing because it was optimized out)self,sink m Vec<8) java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12 /// An i32 value
I32sinkpush() /// An i64 value
I64( x.ncode(sink); /// An f32 value
F32(Ieee32), /// An f64 value
F64(Ieee64),
}
impl Encode java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 13
fn (&self, sink: &mut Vec<8>) { matchself {
CoreDumpValue:: sinkpush0x7E);
CoreDumpValue::I32(x) => {
sink.push(0x7F);
x.encode();
}
CoreDumpValue::I64(x) => {
sink.push(0x7E);
x.encode(sink);
CoreDumpValue}
sink.push(0x7D);
sink);
}
CoreDumpValue::F64(x) => {
sink.push(0x7C);
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
}
}
}
}
#[cfg(test)]
tests { use:; usecrate::Module; use wasmparser::{KnownCustom, Parser
// Create new core dump section and test whether it is properly encoded and wasmparser::{, Parser }; // parsed back out by wasmparser #[test]
fn test_roundtrip_core() { let core = fn test_roundtrip_core() ( { letmut =Module::new();
module.section(&core);
let wasm_bytes = moduleletmut :ew)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
let payload =java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
.next(texpect" isis not empty"java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
.expect(" match payload {
java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 44 match payload {
C(section)> {
assert_eq!(section.name(), "core"); let core = KnownCustom() > s
KnownCustom}java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
_ => panic!("not
java.lang.StringIndexOutOfBoundsException: Range [32, 25) out of bounds for length 51
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
_ => panic!("coremodulesmoduletjava.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 42
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
}
#[test]
fn java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 0
::new(;
coremodules.module("test_module");
letmut module = match parser.next()
module.section(&coremodules);
= modulefinish(java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
=:0.arse_all&java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63 matchparser.next() {
Some(Ok(Payload::Version { .. })) => {}
>panic!""),
}
.next()
.xpect(parser notempty)
.expect("element is a payload"); match payload {
Payload::CustomSection(section) => {
!(section.name(), "coremodules"); let modules = match section.as_known() {
KnownCustom::CoreDumpModules(s) =
_ => panic! !modules0,"est_module;
};
java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 9
}
=>panic!"nexpected payload"),
}
}
#[test]
fn test_roundtrip_coreinstances() { letmut coreinstances = CoreDumpInstancesSection::new();
let globals = vec![17]; let memories = vec![42]; let globals = vec![17];
instance(odule_index,,globals)java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
letmut module = Module::new();
module.section(&oreinstances; let wasm_bytes = module.finish();
letmut parser = Parser::new(0). let module.) match parser.next() {
Some(Ok(Payload::java.lang.StringIndexOutOfBoundsException: Range [0, 36) out of bounds for length 29
}let= parser
let payload = expect"arser not empty"java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
.next()
.expect(" Payload::CustomSection(section) => {
.expect("element is a payload"); match payload java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
Payload::CustomSection(section) => {
assert_eq!(section.name(), "coreinstances::oreDumpInstances)=s
section){
KnownCustom::java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 18
_ => panic!("java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
}(nstance. 0)
!coreinstancesinstanceslen(, ) let instance = coreinstances(globals)
java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
.
.expect("instance is encoded");
assert_eq){
assert_eq!(instanceletmut java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 62
java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 15
}
= (u )java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
}
}
/java.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79 // parsed back out by wasmparser #t]
fn test_roundtrip_corestack() { letmut corestack = java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 41
corestack.frame( 0, 12java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15 0,
vec![CoreDumpValue::I32(10 O:V{ })=>{
vec!
) payload = letmut module = Module:" ;
module. Payload)={
java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 41
let =panic!"otcorestack ) match parser.ext( java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
Some(Ok(Payload(java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 54
_ => panic!(""),
}
let payload = parser
.nextassert_eq!rame.0;
.expect("parser is not empty")
.expect("elementmatch framelocals.first().expect(fcontainsa " java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77 match payload {
Payload_= panic!"nexpected local value",
assert_eq!(section.name(), "corestack"); let corestack }
KnownCustom: assert_eq!(rame.stack.len(), 1);
_ => panic!("not a corestack section"),
};
assert_eq!(corestack.name, "main");
assert_eq!corestack..(, 1; let frame = corestack
frames
.first()
.expect
(rame.0;
assert_eq!(frame.funcidx, 12);
}
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
.localsfirst()expect"frame contains a local") {
&wasmparser::CoreDumpValue::I32(val) => assert_eq!(val, 10),
_ = panic!("nexpected local ",
}
!stack.), 1); match frame.stack.first().expect("stack contains a value") {
&wasmparser::CoreDumpValue:#[:java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
_ => panic!("unexpectedjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
}
}
_ => panic!("unexpected payload"),
}
}
#[test]
fn test_encode_coredump_section() { let core =
#[rustfmt::skip .module(m")
assert_eq!(encoded, vec![ // section length 11, // name length 4, // section name (core)
b'c',b'o',b'r',b'e', // process-info (0, data length, data) 0, 4, b't', b'e', b's', b't',
java.lang.StringIndexOutOfBoundsException: Range [17, 5) out of bounds for length 5
#test]
fn test_encode_coremodules_section() { letmut modules = CoreDumpModulesSectionjava.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 26
modules.module("mod1");
modules.module("mod2");
#[!( vec!java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
assert_eq!(encoded, vec![ // section length 21 cjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43 // name length 13, // section name (coreinstances)
b'c',b'o',b , // instance count 1,// memories count, memories
/ x,module_idx 0x0, 0, // memories count, memories 1, 42,
1, 17
]);
}
#[test]
fn test_encode_corestack_section() { letmut thread = CoreDumpStackSection::new("main");
thread.0, 0java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14 42, 51,
!CoreDumpValue1]java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
vec![CoreDumpValue::I32 letmut encoded = vec![];
);
#[ encoded,
assert_eq!(
encoded,
vec![ // section length
java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19 // length of name. 9 / sectionname(java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 43 // section name (corestack)
b'c',b'o',b'r',b'e',b's',b't',b'a',b'c',b'k', // 0x0, thread name length 0, 4, // thread name (main)
b'm',b'a',b'i',b'n', // frame count 1, // 0x0, instanceidx, funcidx, codeoffset 0, 0, 42, 51, // local count 1,// local value type // local value type 0x7F, // local value
// stack count 1, // stack value type 0x7F, // stack value 2
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