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| author | Alex Rønne Petersen <alex@alexrp.com> | 2024-07-24 17:36:34 +0200 |
|---|---|---|
| committer | Alex Rønne Petersen <alex@alexrp.com> | 2024-07-24 21:56:54 +0200 |
| commit | ce81525f3f3057e4239332b2152bf60f75c5f52a (patch) | |
| tree | a7e5852b3ea78c86bf38cfffd13ff21e04121f61 /lib | |
| parent | 52653ec82bcc8e10fee9b6d9997b2de41a22a93a (diff) | |
| download | zig-ce81525f3f3057e4239332b2152bf60f75c5f52a.tar.gz zig-ce81525f3f3057e4239332b2152bf60f75c5f52a.zip | |
start: Align the stack on s390x just in case.
The kernel does this as required, but we cannot trust dynamic linkers to do it.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/std/start.zig | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/std/start.zig b/lib/std/start.zig index 015f2c077f..437498d1d8 100644 --- a/lib/std/start.zig +++ b/lib/std/start.zig @@ -373,8 +373,9 @@ fn _start() callconv(.Naked) noreturn { , .s390x => // Set up the stack frame (register save area and cleared back-chain slot). - // Note: Stack pointer is guaranteed by ABI to be 8-byte aligned as required. \\ lgr %r2, %r15 + \\ lghi %r0, -16 + \\ ngr %r15, %r0 \\ aghi %r15, -160 \\ lghi %r0, 0 \\ stg %r0, 0(%r15) |