mirrors/Odin
1
0
Fork 0
mirror of https://github.com/odin-lang/Odin.git synced 2026-04-18 12:30:28 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #5491 from Feoramund/buddy-2

Browse Source 
Fix Linux-specific optimized test failure
This commit is contained in:
Jeroen van Rijn
2025-07-22 17:01:13 +02:00
committed by GitHub
parent 19a075211f a0efdf26a6
commit 315cd51f76
2 changed files with 13 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
core/mem/allocators.odin
View File

@@ -2223,6 +2223,9 @@ Initialize a buddy allocator.
This procedure initializes the buddy allocator `b` with a backing buffer `data`
and block alignment specified by `alignment`.
`alignment` may be any power of two, but the backing buffer must be aligned to
at least `size_of(Buddy_Block)`.
*/
buddy_allocator_init :: proc(b: ^Buddy_Allocator, data: []byte, alignment: uint, loc := #caller_location) {
assert(data != nil)
@@ -2233,7 +2236,7 @@ buddy_allocator_init :: proc(b: ^Buddy_Allocator, data: []byte, alignment: uint,
alignment = size_of(Buddy_Block)
}
ptr := raw_data(data)
assert(uintptr(ptr) % uintptr(alignment) == 0, "data is not aligned to minimum alignment", loc)
assert(uintptr(ptr) % uintptr(alignment) == 0, "The data is not aligned to the minimum alignment, which must be at least `size_of(Buddy_Block)`.", loc)
b.head = (^Buddy_Block)(ptr)
b.head.size = len(data)
b.head.is_free = true

13
tests/core/mem/test_core_mem.odin
View File

@@ -282,13 +282,18 @@ test_dynamic_arena :: proc(t: ^testing.T) {
@test
test_buddy :: proc(t: ^testing.T) {
N :: 4096
N :: 8192
buf: [N]u8
base := &buf[0]
address := mem.align_forward(base, size_of(mem.Buddy_Block))
delta := uintptr(address) - uintptr(base)
ba: mem.Buddy_Allocator
mem.buddy_allocator_init(&ba, buf[:], align_of(u8))
basic_sanity_test(t, mem.buddy_allocator(&ba), N / 8)
basic_sanity_test(t, mem.buddy_allocator(&ba), N / 8)
mem.buddy_allocator_init(&ba, buf[delta:delta+N/2], size_of(mem.Buddy_Block))
basic_sanity_test(t, mem.buddy_allocator(&ba), N / 16)
basic_sanity_test(t, mem.buddy_allocator(&ba), N / 16)
}
@test