Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <sys/ucontext.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define __FRAME_OFFSETS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <asm/ptrace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <sysdep/ptrace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) void get_regs_from_mc(struct uml_pt_regs *regs, mcontext_t *mc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #ifdef __i386__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define COPY2(X,Y) regs->gp[X] = mc->gregs[REG_##Y]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define COPY(X) regs->gp[X] = mc->gregs[REG_##X]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define COPY_SEG(X) regs->gp[X] = mc->gregs[REG_##X] & 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define COPY_SEG_CPL3(X) regs->gp[X] = (mc->gregs[REG_##X] & 0xffff) | 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	COPY_SEG(GS); COPY_SEG(FS); COPY_SEG(ES); COPY_SEG(DS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	COPY(EDI); COPY(ESI); COPY(EBP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	COPY2(UESP, ESP); /* sic */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	COPY(EBX); COPY(EDX); COPY(ECX); COPY(EAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	COPY(EIP); COPY_SEG_CPL3(CS); COPY(EFL); COPY_SEG_CPL3(SS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define COPY2(X,Y) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##Y]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define COPY(X) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##X]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	COPY(R8); COPY(R9); COPY(R10); COPY(R11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	COPY(R12); COPY(R13); COPY(R14); COPY(R15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	COPY(RDI); COPY(RSI); COPY(RBP); COPY(RBX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	COPY(RDX); COPY(RAX); COPY(RCX); COPY(RSP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	COPY(RIP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	COPY2(EFLAGS, EFL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	COPY2(CS, CSGSFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	regs->gp[CS / sizeof(unsigned long)] &= 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	regs->gp[CS / sizeof(unsigned long)] |= 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }