| #ifndef _BPF_JIT_H | |
| #define _BPF_JIT_H | |
| /* Conventions: | |
| * %g1 : temporary | |
| * %g2 : Secondary temporary used by SKB data helper stubs. | |
| * %o0 : pointer to skb (first argument given to JIT function) | |
| * %o1 : BPF A accumulator | |
| * %o2 : BPF X accumulator | |
| * %o3 : Holds saved %o7 so we can call helper functions without needing | |
| * to allocate a register window. | |
| * %o4 : skb->data | |
| * %o5 : skb->len - skb->data_len | |
| */ | |
| #ifndef __ASSEMBLER__ | |
| #define G0 0x00 | |
| #define G1 0x01 | |
| #define G3 0x03 | |
| #define G6 0x06 | |
| #define O0 0x08 | |
| #define O1 0x09 | |
| #define O2 0x0a | |
| #define O3 0x0b | |
| #define O4 0x0c | |
| #define O5 0x0d | |
| #define SP 0x0e | |
| #define O7 0x0f | |
| #define FP 0x1e | |
| #define r_SKB O0 | |
| #define r_A O1 | |
| #define r_X O2 | |
| #define r_saved_O7 O3 | |
| #define r_HEADLEN O4 | |
| #define r_SKB_DATA O5 | |
| #define r_TMP G1 | |
| #define r_TMP2 G2 | |
| #define r_OFF G3 | |
| #else | |
| #define r_SKB %o0 | |
| #define r_A %o1 | |
| #define r_X %o2 | |
| #define r_saved_O7 %o3 | |
| #define r_HEADLEN %o4 | |
| #define r_SKB_DATA %o5 | |
| #define r_TMP %g1 | |
| #define r_TMP2 %g2 | |
| #define r_OFF %g3 | |
| #endif | |
| #endif /* _BPF_JIT_H */ |