diff options
Diffstat (limited to 'executor')
| -rw-r--r-- | executor/common_kvm_arm64_syzos.h | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/executor/common_kvm_arm64_syzos.h b/executor/common_kvm_arm64_syzos.h index 63b571cb3..70074bfbf 100644 --- a/executor/common_kvm_arm64_syzos.h +++ b/executor/common_kvm_arm64_syzos.h @@ -18,17 +18,21 @@ // Start/end of the guest section. extern char *__start_guest, *__stop_guest; +// Compilers will eagerly try to transform the switch statement in guest_main() +// into a jump table, unless the cases are sparse enough. +// We use prime numbers multiplied by 10 to prevent this behavior. +// Remember these constants must match those in sys/linux/dev_kvm_arm64.txt. typedef enum { - SYZOS_API_UEXIT, - SYZOS_API_CODE, - SYZOS_API_MSR, - SYZOS_API_SMC, - SYZOS_API_HVC, - SYZOS_API_IRQ_SETUP, - SYZOS_API_MEMWRITE, - SYZOS_API_ITS_SETUP, - SYZOS_API_ITS_SEND_CMD, - SYZOS_API_MRS, + SYZOS_API_UEXIT = 0, + SYZOS_API_CODE = 10, + SYZOS_API_MSR = 20, + SYZOS_API_SMC = 30, + SYZOS_API_HVC = 50, + SYZOS_API_IRQ_SETUP = 70, + SYZOS_API_MEMWRITE = 110, + SYZOS_API_ITS_SETUP = 130, + SYZOS_API_ITS_SEND_CMD = 170, + SYZOS_API_MRS = 190, SYZOS_API_STOP, // Must be the last one } syzos_api_id; |