зеркало из https://github.com/mozilla/gecko-dev.git
servo: Merge #19607 - hashglobe: Dump the requested aligment if out of memory while allocating a table (from BorisChiou:stylo/crash/out_of_memory_alignment); r=emilio
This is for Bug 1418806 and Bug 1416903. We need not only the requested size but also the requested alignment for debugging. --- - [X] `./mach build -d` does not report any errors - [X] `./mach test-tidy` does not report any errors Source-Repo: https://github.com/servo/servo Source-Revision: 27a443fbaaf3e19fa3a753f68b20a7a7ccc5d199 --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : fa754d106c4d47fd89f89a46df704c85387722bd
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@ -26,17 +26,25 @@ trait Recover<Q: ?Sized> {
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fn replace(&mut self, key: Self::Key) -> Option<Self::Key>;
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}
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#[derive(Debug)]
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pub struct AllocationInfo {
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/// The size we are requesting.
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size: usize,
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/// The alignment we are requesting.
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alignment: usize,
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}
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#[derive(Debug)]
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pub struct FailedAllocationError {
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reason: &'static str,
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/// The size we are allocating, if needed.
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allocation_size: Option<usize>,
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/// The allocation info we are requesting, if needed.
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allocation_info: Option<AllocationInfo>,
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}
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impl FailedAllocationError {
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#[inline]
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pub fn new(reason: &'static str) -> Self {
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Self { reason, allocation_size: None }
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Self { reason, allocation_info: None }
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}
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}
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@ -48,8 +56,10 @@ impl error::Error for FailedAllocationError {
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impl fmt::Display for FailedAllocationError {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self.allocation_size {
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Some(size) => write!(f, "{}, allocation size: {}", self.reason, size),
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match self.allocation_info {
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Some(ref info) => {
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write!(f, "{}, allocation: (size: {}, alignment: {})", self.reason, info.size, info.alignment)
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},
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None => self.reason.fmt(f),
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}
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}
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@ -778,9 +778,10 @@ impl<K, V> RawTable<K, V> {
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let buffer = alloc(size, alignment);
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if buffer.is_null() {
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use AllocationInfo;
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return Err(FailedAllocationError {
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reason: "out of memory when allocating RawTable",
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allocation_size: Some(size),
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allocation_info: Some(AllocationInfo { size, alignment }),
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});
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}
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