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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /library/backtrace/src/symbolize/gimli/mmap_fake.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/backtrace/src/symbolize/gimli/mmap_fake.rs')
-rw-r--r--library/backtrace/src/symbolize/gimli/mmap_fake.rs25
1 files changed, 25 insertions, 0 deletions
diff --git a/library/backtrace/src/symbolize/gimli/mmap_fake.rs b/library/backtrace/src/symbolize/gimli/mmap_fake.rs
new file mode 100644
index 000000000..ce5096415
--- /dev/null
+++ b/library/backtrace/src/symbolize/gimli/mmap_fake.rs
@@ -0,0 +1,25 @@
+use super::{mystd::io::Read, File};
+use alloc::vec::Vec;
+use core::ops::Deref;
+
+pub struct Mmap {
+ vec: Vec<u8>,
+}
+
+impl Mmap {
+ pub unsafe fn map(mut file: &File, len: usize) -> Option<Mmap> {
+ let mut mmap = Mmap {
+ vec: Vec::with_capacity(len),
+ };
+ file.read_to_end(&mut mmap.vec).ok()?;
+ Some(mmap)
+ }
+}
+
+impl Deref for Mmap {
+ type Target = [u8];
+
+ fn deref(&self) -> &[u8] {
+ &self.vec[..]
+ }
+}