1 files changed, 14 insertions, 3 deletions
diff --git a/lib/std/elf.zig b/lib/std/elf.zig
index 751f82a9ea..9f30a36148 100644
--- a/lib/std/elf.zig
+++ b/lib/std/elf.zig
@@ -706,13 +706,13 @@ pub const Elf64_Shdr = extern struct {
     sh_entsize: Elf64_Xword,
 };
 pub const Elf32_Chdr = extern struct {
-    ch_type: Elf32_Word,
+    ch_type: COMPRESS,
     ch_size: Elf32_Word,
     ch_addralign: Elf32_Word,
 };
 pub const Elf64_Chdr = extern struct {
-    ch_type: Elf64_Word,
-    ch_reserved: Elf64_Word,
+    ch_type: COMPRESS,
+    ch_reserved: Elf64_Word = 0,
     ch_size: Elf64_Xword,
     ch_addralign: Elf64_Xword,
 };
@@ -1730,6 +1730,17 @@ pub const SHN_COMMON = 0xfff2;
 /// End of reserved indices
 pub const SHN_HIRESERVE = 0xffff;
 
+// Legal values for ch_type (compression algorithm).
+pub const COMPRESS = enum(u32) {
+    ZLIB = 1,
+    ZSTD = 2,
+    LOOS = 0x60000000,
+    HIOS = 0x6fffffff,
+    LOPROC = 0x70000000,
+    HIPROC = 0x7fffffff,
+    _,
+};
+
 /// AMD x86-64 relocations.
 /// No reloc
 pub const R_X86_64_NONE = 0;