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| author | Himbeer <himbeer@disroot.org> | 2024-06-15 21:13:22 +0200 |
|---|---|---|
| committer | Himbeer <himbeer@disroot.org> | 2024-06-15 21:13:22 +0200 |
| commit | ae5d317408315ac631351b265a79924c281368a9 (patch) | |
| tree | 2bd625c55e812445717fc7082d3ee3a9bf51d8f4 /src | |
| parent | f13549ebe9688eb653c2e57f2b2f42b019eb1278 (diff) | |
interrupts: Restore global pointer before entering handleTrap
Diffstat (limited to 'src')
| -rw-r--r-- | src/lib/interrupts.zig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/lib/interrupts.zig b/src/lib/interrupts.zig index ebb6e9a..a91e079 100644 --- a/src/lib/interrupts.zig +++ b/src/lib/interrupts.zig @@ -93,6 +93,7 @@ export fn handleTrap(epc: usize, tval: usize, cause_bits: usize, frame: *trap.Fr const w = console.writer(); const status = instructions.sstatus.read(); + const cause: Cause = @bitCast(cause_bits); if (cause.isAsync()) { @@ -226,10 +227,16 @@ export fn supervisorTrapVector() align(4) callconv(.Naked) noreturn { \\ \\ csrw sscratch, t5 \\ + \\ .option push + \\ .option norelax + \\ la gp, _global_pointer + \\ .option pop + \\ \\ csrr a0, sepc \\ csrr a1, stval \\ csrr a2, scause \\ mv a3, t5 + \\ \\ la sp, _stvec_stack_end \\ call handleTrap \\ |