| author |  Casey Banner <kcbanner@gmail.com> 2023-04-22 13:12:35-04:00 |
| committer |  GitHub <noreply@github.com> 2023-04-22 17:12:35+00:00 |
| log | c7067ef6e823a0eaa87880e7a4b8bc89c0b31ab2 |
| tree | 33265b9a246e48d1e90667abfc379abd9e8a861b |
| parent | 7e9a76048213a21bd3d20cc4acfd2ffe9b4b06b7 |
| signature | Signed by PGP key 4AEE18F83AFDEB23 |
sema: fix memory corruption caused by resolveStructLayout
2 files changed, 4 insertions(+), 2 deletions(-)
src/Sema.zig+3-1
| ... | @@ -30369,7 +30369,9 @@ fn resolveStructLayout(sema: *Sema, ty: Type) CompileError!void { | ... | @@ -30369,7 +30369,9 @@ fn resolveStructLayout(sema: *Sema, ty: Type) CompileError!void { |
| 30369 | } | 30369 | } |
| 30370 | 30370 | ||
| 30371 | if (struct_obj.layout == .Auto and sema.mod.backendSupportsFeature(.field_reordering)) { | 30371 | if (struct_obj.layout == .Auto and sema.mod.backendSupportsFeature(.field_reordering)) { |
| 30372 | const optimized_order = blk: { | 30372 | const optimized_order = if (struct_obj.owner_decl == sema.owner_decl_index) |
| 30373 | try sema.perm_arena.alloc(u32, struct_obj.fields.count()) | ||
| 30374 | else blk: { | ||
| 30373 | const decl = sema.mod.declPtr(struct_obj.owner_decl); | 30375 | const decl = sema.mod.declPtr(struct_obj.owner_decl); |
| 30374 | var decl_arena = decl.value_arena.?.promote(sema.mod.gpa); | 30376 | var decl_arena = decl.value_arena.?.promote(sema.mod.gpa); |
| 30375 | defer decl.value_arena.?.* = decl_arena.state; | 30377 | defer decl.value_arena.?.* = decl_arena.state; |
src/link/Plan9.zig+1-1
| ... | @@ -1060,7 +1060,7 @@ pub fn getDeclVAddr( | ... | @@ -1060,7 +1060,7 @@ pub fn getDeclVAddr( |
| 1060 | .offset = reloc_info.offset, | 1060 | .offset = reloc_info.offset, |
| 1061 | .addend = reloc_info.addend, | 1061 | .addend = reloc_info.addend, |
| 1062 | }); | 1062 | }); |
| 1063 | return undefined; | 1063 | return 0; |
| 1064 | } | 1064 | } |
| 1065 | 1065 | ||
| 1066 | pub fn getDeclBlock(self: *const Plan9, index: DeclBlock.Index) DeclBlock { | 1066 | pub fn getDeclBlock(self: *const Plan9, index: DeclBlock.Index) DeclBlock { |