diff options
| author | dzwdz | 2024-07-25 22:17:27 +0200 |
|---|---|---|
| committer | dzwdz | 2024-07-25 22:17:27 +0200 |
| commit | 69fd0dd9fda47aa52cccdbef6ca388cea38e693b (patch) | |
| tree | 9e0e80e0380f2f39dea8f3a76ecb629918ff187a /src/libc/intr.s | |
| parent | 24934406d5d39e013e22a9e6f4138c4169460d71 (diff) | |
kernel: pass more information to user on interrupt
This is meant to facilitate a syscall for returning from interrupts, which
will actually work in the general case as opposed to the current hack, which
only works if the interrupt occured during a syscall (which is correct... for
now).
Diffstat (limited to 'src/libc/intr.s')
| -rw-r--r-- | src/libc/intr.s | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/src/libc/intr.s b/src/libc/intr.s index 008387d..dcc61fe 100644 --- a/src/libc/intr.s +++ b/src/libc/intr.s @@ -2,19 +2,12 @@ .global intr_trampoline .type intr_trampoline, @function intr_trampoline: - push %rax - push %rdx + mov %rsp, %rdi /* pass intr_data as the argument */ + and $~0xF, %rsp call *_intr(%rip) - pop %rdx - pop %rax - pop tmprip(%rip) - pop %rsp - jmp *tmprip(%rip) + int3 /* you weren't supposed to return */ .section .bss -tmprip: - .skip 8 - .global _intr _intr: .skip 8 |