feat: riscv64 linux support

This commit is contained in:
kingfish404 2024-07-14 16:43:25 +08:00 committed by Zihao Yu
parent 0e37b47498
commit a7b830fedd
5 changed files with 52 additions and 29 deletions

View file

@ -11,8 +11,10 @@ struct Context {
uintptr_t ksp;
void *vm_head;
ucontext_t uc;
#ifdef __x86_64__
// skip the red zone of the stack frame, see the amd64 ABI manual for details
uint8_t redzone[128];
#endif
};
#ifdef __x86_64__
@ -21,12 +23,21 @@ struct Context {
#define GPR3 uc.uc_mcontext.gregs[REG_RDX]
#define GPR4 uc.uc_mcontext.gregs[REG_RCX]
#define GPRx uc.uc_mcontext.gregs[REG_RAX]
#elif __aarch64__
#elif defined(__aarch64__)
#define GPR1 uc.uc_mcontext.regs[0]
#define GPR2 uc.uc_mcontext.regs[1]
#define GPR3 uc.uc_mcontext.regs[2]
#define GPR4 uc.uc_mcontext.regs[3]
#define GPRx uc.uc_mcontext.regs[0]
#elif defined(__riscv)
// FIXME: may be wrong
#define GPR1 uc.uc_mcontext.__gregs[REG_A0]
#define GPR2 uc.uc_mcontext.__gregs[REG_A0+1]
#define GPR3 uc.uc_mcontext.__gregs[REG_A0+2]
#define GPR4 uc.uc_mcontext.__gregs[REG_A0+3]
#define GPRx uc.uc_mcontext.__gregs[REG_A0+4]
#else
#error Unsupported architecture
#endif
#undef __USE_GNU