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| author | Ruslan Bukin <br@FreeBSD.org> | 2016-02-17 13:49:38 +0000 |
|---|---|---|
| committer | Ruslan Bukin <br@FreeBSD.org> | 2016-02-17 13:49:38 +0000 |
| commit | 6cb16b7e7a668b8f0bfd27f51dba9005d42f0ca1 (patch) | |
| tree | 990742fc3ce3b9b62c794b782dc915a4ad62b14e /sys/riscv | |
| parent | 486ff49853b412f9da2fe944fd88e87ccd7d88eb (diff) | |
| download | src-6cb16b7e7a668b8f0bfd27f51dba9005d42f0ca1.tar.gz src-6cb16b7e7a668b8f0bfd27f51dba9005d42f0ca1.zip | |
Add the implementation of savectx().
Notes
Notes:
svn path=/head/; revision=295698
Diffstat (limited to 'sys/riscv')
| -rw-r--r-- | sys/riscv/riscv/swtch.S | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/sys/riscv/riscv/swtch.S b/sys/riscv/riscv/swtch.S index 413e666fa0d8..1a9092f26cdf 100644 --- a/sys/riscv/riscv/swtch.S +++ b/sys/riscv/riscv/swtch.S @@ -256,8 +256,27 @@ ENTRY(fork_trampoline) END(fork_trampoline) ENTRY(savectx) - la a0, .Lsavectx_panic_str - call panic -.Lsavectx_panic_str: - .asciz "savectx_panic: %p\0" + /* Store ra, sp and the callee-saved registers */ + sd ra, (PCB_RA)(a0) + sd sp, (PCB_SP)(a0) + + /* s[0-11] */ + sd s0, (PCB_S + 0 * 8)(a0) + sd s1, (PCB_S + 1 * 8)(a0) + sd s2, (PCB_S + 2 * 8)(a0) + sd s3, (PCB_S + 3 * 8)(a0) + sd s4, (PCB_S + 4 * 8)(a0) + sd s5, (PCB_S + 5 * 8)(a0) + sd s6, (PCB_S + 6 * 8)(a0) + sd s7, (PCB_S + 7 * 8)(a0) + sd s8, (PCB_S + 8 * 8)(a0) + sd s9, (PCB_S + 9 * 8)(a0) + sd s10, (PCB_S + 10 * 8)(a0) + sd s11, (PCB_S + 11 * 8)(a0) + + /* Store the VFP registers */ +#ifdef VFP + /* TODO */ +#endif + ret END(savectx) |