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| author | Samuel Williams <samuel.williams@oriontransfer.co.nz> | 2019-06-26 22:02:19 +1200 |
|---|---|---|
| committer | Samuel Williams <samuel.williams@oriontransfer.co.nz> | 2019-06-26 22:02:28 +1200 |
| commit | acb67472c7da459812aa9008cf8cfbedcdddea67 (patch) | |
| tree | 37f361d5b187d9f5fdbd70b67b225841e26d3bfb /coroutine/arm32/Context.S | |
| parent | ba17127e992a4d1fb1fbd58869cbb4f12ff76227 (diff) | |
| download | ruby-acb67472c7da459812aa9008cf8cfbedcdddea67.tar.gz | |
Restore updated implementation of arm32 coroutine code, but prefer ucontext.
Diffstat (limited to 'coroutine/arm32/Context.S')
| -rw-r--r-- | coroutine/arm32/Context.S | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/coroutine/arm32/Context.S b/coroutine/arm32/Context.S index c2b93d0a34..4308e1d1d2 100644 --- a/coroutine/arm32/Context.S +++ b/coroutine/arm32/Context.S @@ -9,6 +9,14 @@ .globl coroutine_transfer coroutine_transfer: - stmia r1!, {r4-r11,sp,lr} - ldmia r0!, {r4-r11,sp,pc} - bx lr + # Save caller state (8 registers + return address) + push {r4-r11,lr} + + # Save caller stack pointer + str sp, [r0] + + # Restore callee stack pointer + ldr sp, [r1] + + # Restore callee state (8 registers program counter) + pop {r4-r11,pc} |