diff options
Diffstat (limited to 'executor')
| -rw-r--r-- | executor/common_kvm_amd64_syzos.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/executor/common_kvm_amd64_syzos.h b/executor/common_kvm_amd64_syzos.h index 706396d1a..787b982de 100644 --- a/executor/common_kvm_amd64_syzos.h +++ b/executor/common_kvm_amd64_syzos.h @@ -18,10 +18,14 @@ // 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_amd64.txt. typedef enum { - SYZOS_API_UEXIT, - SYZOS_API_CODE, - SYZOS_API_CPUID, + SYZOS_API_UEXIT = 0, + SYZOS_API_CODE = 10, + SYZOS_API_CPUID = 20, SYZOS_API_STOP, // Must be the last one } syzos_api_id; |