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Resolve issues for unit tests on 32 bits #1095

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merged 6 commits into from
Mar 21, 2024
Merged

Resolve issues for unit tests on 32 bits #1095

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c8a0b44
Make raw_memory_freelist 64bits only
qinsoon Mar 21, 2024
12202aa
Debug: Run tests with 1 single test thread
qinsoon Mar 21, 2024
d1a1841
Change the MMAP test address. After the tests, unmap exactly what we
qinsoon Mar 21, 2024
3fe8e54
Revert "Debug: Run tests with 1 single test thread"
qinsoon Mar 21, 2024
d1453cc
Still compile raw_memory_freelist and its tests for 32 bits
qinsoon Mar 21, 2024
266026f
Minor refactoring in tests
qinsoon Mar 21, 2024
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57 changes: 33 additions & 24 deletions src/util/heap/layout/byte_map_mmapper.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -229,16 +229,16 @@ mod tests {
#[test]
fn ensure_mapped_1page() {
serial_test(|| {
let pages = 1;
let start_chunk = ByteMapMmapper::address_to_mmap_chunks_down(FIXED_ADDRESS);
let end_chunk =
ByteMapMmapper::address_to_mmap_chunks_up(FIXED_ADDRESS + pages_to_bytes(pages));
let test_memory_bytes = (end_chunk - start_chunk) * MMAP_CHUNK_BYTES;
with_cleanup(
|| {
let mmapper = ByteMapMmapper::new();
let pages = 1;
mmapper.ensure_mapped(FIXED_ADDRESS, pages).unwrap();

let start_chunk = ByteMapMmapper::address_to_mmap_chunks_down(FIXED_ADDRESS);
let end_chunk = ByteMapMmapper::address_to_mmap_chunks_up(
FIXED_ADDRESS + pages_to_bytes(pages),
);
for chunk in start_chunk..end_chunk {
assert_eq!(
mmapper.mapped[chunk].load(Ordering::Relaxed),
Expand All @@ -247,7 +247,7 @@ mod tests {
}
},
|| {
memory::munmap(FIXED_ADDRESS, MAX_SIZE).unwrap();
memory::munmap(FIXED_ADDRESS, test_memory_bytes).unwrap();
},
)
})
Expand All @@ -256,16 +256,16 @@ mod tests {
#[test]
fn ensure_mapped_1chunk() {
serial_test(|| {
let pages = MMAP_CHUNK_BYTES >> LOG_BYTES_IN_PAGE as usize;
let start_chunk = ByteMapMmapper::address_to_mmap_chunks_down(FIXED_ADDRESS);
let end_chunk =
ByteMapMmapper::address_to_mmap_chunks_up(FIXED_ADDRESS + pages_to_bytes(pages));
let test_memory_bytes = (end_chunk - start_chunk) * MMAP_CHUNK_BYTES;
with_cleanup(
|| {
let mmapper = ByteMapMmapper::new();
let pages = MMAP_CHUNK_BYTES >> LOG_BYTES_IN_PAGE as usize;
mmapper.ensure_mapped(FIXED_ADDRESS, pages).unwrap();

let start_chunk = ByteMapMmapper::address_to_mmap_chunks_down(FIXED_ADDRESS);
let end_chunk = ByteMapMmapper::address_to_mmap_chunks_up(
FIXED_ADDRESS + pages_to_bytes(pages),
);
for chunk in start_chunk..end_chunk {
assert_eq!(
mmapper.mapped[chunk].load(Ordering::Relaxed),
Expand All @@ -274,7 +274,7 @@ mod tests {
}
},
|| {
memory::munmap(FIXED_ADDRESS, MAX_SIZE).unwrap();
memory::munmap(FIXED_ADDRESS, test_memory_bytes).unwrap();
},
)
})
Expand All @@ -283,11 +283,14 @@ mod tests {
#[test]
fn ensure_mapped_more_than_1chunk() {
serial_test(|| {
let pages = (MMAP_CHUNK_BYTES + MMAP_CHUNK_BYTES / 2) >> LOG_BYTES_IN_PAGE as usize;
let start_chunk = ByteMapMmapper::address_to_mmap_chunks_down(FIXED_ADDRESS);
let end_chunk =
ByteMapMmapper::address_to_mmap_chunks_up(FIXED_ADDRESS + pages_to_bytes(pages));
let test_memory_bytes = (end_chunk - start_chunk) * MMAP_CHUNK_BYTES;
with_cleanup(
|| {
let mmapper = ByteMapMmapper::new();
let pages =
(MMAP_CHUNK_BYTES + MMAP_CHUNK_BYTES / 2) >> LOG_BYTES_IN_PAGE as usize;
mmapper.ensure_mapped(FIXED_ADDRESS, pages).unwrap();

let start_chunk = ByteMapMmapper::address_to_mmap_chunks_down(FIXED_ADDRESS);
Expand All @@ -303,7 +306,7 @@ mod tests {
}
},
|| {
memory::munmap(FIXED_ADDRESS, MAX_SIZE).unwrap();
memory::munmap(FIXED_ADDRESS, test_memory_bytes).unwrap();
},
)
})
Expand All @@ -312,17 +315,20 @@ mod tests {
#[test]
fn protect() {
serial_test(|| {
let test_memory_bytes = MMAP_CHUNK_BYTES * 2;
let test_memory_pages = test_memory_bytes >> LOG_BYTES_IN_PAGE;
let protect_memory_bytes = MMAP_CHUNK_BYTES;
let protect_memory_pages = protect_memory_bytes >> LOG_BYTES_IN_PAGE;
with_cleanup(
|| {
// map 2 chunks
let mmapper = ByteMapMmapper::new();
let pages_per_chunk = MMAP_CHUNK_BYTES >> LOG_BYTES_IN_PAGE as usize;
mmapper
.ensure_mapped(FIXED_ADDRESS, pages_per_chunk * 2)
.ensure_mapped(FIXED_ADDRESS, test_memory_pages)
.unwrap();

// protect 1 chunk
mmapper.protect(FIXED_ADDRESS, pages_per_chunk);
mmapper.protect(FIXED_ADDRESS, protect_memory_pages);

let chunk = ByteMapMmapper::address_to_mmap_chunks_down(FIXED_ADDRESS);
assert_eq!(
Expand All @@ -335,7 +341,7 @@ mod tests {
);
},
|| {
memory::munmap(FIXED_ADDRESS, MAX_SIZE).unwrap();
memory::munmap(FIXED_ADDRESS, test_memory_bytes).unwrap();
},
)
})
Expand All @@ -344,17 +350,20 @@ mod tests {
#[test]
fn ensure_mapped_on_protected_chunks() {
serial_test(|| {
let test_memory_bytes = MMAP_CHUNK_BYTES * 2;
let test_memory_pages = test_memory_bytes >> LOG_BYTES_IN_PAGE;
let protect_memory_pages_1 = MMAP_CHUNK_BYTES >> LOG_BYTES_IN_PAGE; // protect one chunk in the first protect
let protect_memory_pages_2 = test_memory_pages; // protect both chunks in the second protect
with_cleanup(
|| {
// map 2 chunks
let mmapper = ByteMapMmapper::new();
let pages_per_chunk = MMAP_CHUNK_BYTES >> LOG_BYTES_IN_PAGE as usize;
mmapper
.ensure_mapped(FIXED_ADDRESS, pages_per_chunk * 2)
.ensure_mapped(FIXED_ADDRESS, test_memory_pages)
.unwrap();

// protect 1 chunk
mmapper.protect(FIXED_ADDRESS, pages_per_chunk);
mmapper.protect(FIXED_ADDRESS, protect_memory_pages_1);

let chunk = ByteMapMmapper::address_to_mmap_chunks_down(FIXED_ADDRESS);
assert_eq!(
Expand All @@ -368,7 +377,7 @@ mod tests {

// ensure mapped - this will unprotect the previously protected chunk
mmapper
.ensure_mapped(FIXED_ADDRESS, pages_per_chunk * 2)
.ensure_mapped(FIXED_ADDRESS, protect_memory_pages_2)
.unwrap();
assert_eq!(
mmapper.mapped[chunk].load(Ordering::Relaxed),
Expand All @@ -380,7 +389,7 @@ mod tests {
);
},
|| {
memory::munmap(FIXED_ADDRESS, MAX_SIZE).unwrap();
memory::munmap(FIXED_ADDRESS, test_memory_bytes).unwrap();
},
)
})
Expand Down
4 changes: 2 additions & 2 deletions src/util/test_util/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -46,10 +46,10 @@ mod test {
}
}

// Test with an address that works for 32bits.
// Test with an address that works for 32bits. The address is chosen empirically.
#[cfg(target_os = "linux")]
const TEST_ADDRESS: Address =
crate::util::conversions::chunk_align_down(unsafe { Address::from_usize(0x6000_0000) });
crate::util::conversions::chunk_align_down(unsafe { Address::from_usize(0x7000_0000) });
#[cfg(target_os = "macos")]
const TEST_ADDRESS: Address =
crate::util::conversions::chunk_align_down(unsafe { Address::from_usize(0x2_0000_0000) });
Expand Down
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