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#ifndef UAPI_COMPEL_ASM_SIGFRAME_H__
#define UAPI_COMPEL_ASM_SIGFRAME_H__
#include <asm/ptrace.h>
#include <asm/elf.h>
#include <asm/types.h>
/*
* sigcontext structure defined in file
* /usr/include/powerpc64le-linux-gnu/bits/sigcontext.h,
* included from /usr/include/signal.h
*
* Kernel definition can be found in arch/powerpc/include/uapi/asm/sigcontext.h
*/
#include <signal.h>
// XXX: the idetifier rt_sigcontext is expected to be struct by the CRIU code
#define rt_sigcontext sigcontext
#include <compel/sigframe-common.h>
#define RT_SIGFRAME_OFFSET(rt_sigframe) 0
/* Copied from the Linux kernel header arch/powerpc/include/asm/ptrace.h */
#define USER_REDZONE_SIZE 512
/* Copied from the Linux kernel source file arch/powerpc/kernel/signal_64.c */
#define TRAMP_SIZE 6
/*
* ucontext_t defined in /usr/include/powerpc64le-linux-gnu/sys/ucontext.h
*/
struct rt_sigframe {
/* sys_rt_sigreturn requires the ucontext be the first field */
ucontext_t uc;
ucontext_t uc_transact; /* Transactional state */
unsigned long _unused[2];
unsigned int tramp[TRAMP_SIZE];
struct rt_siginfo *pinfo;
void *puc;
struct rt_siginfo info;
/* New 64 bit little-endian ABI allows redzone of 512 bytes below sp */
char abigap[USER_REDZONE_SIZE];
} __attribute__((aligned(16)));
/* clang-format off */
#define ARCH_RT_SIGRETURN(new_sp, rt_sigframe) \
asm volatile( \
"mr 1, %0 \n" \
"li 0, "__stringify(__NR_rt_sigreturn)" \n" \
"sc \n" \
: \
: "r"(new_sp) \
: "memory")
/* clang-format on */
#if _CALL_ELF != 2
#error Only supporting ABIv2.
#else
#define FRAME_MIN_SIZE_PARM 96
#endif
#define RT_SIGFRAME_UC(rt_sigframe) (&(rt_sigframe)->uc)
#define RT_SIGFRAME_REGIP(rt_sigframe) ((long unsigned int)(rt_sigframe)->uc.uc_mcontext.gp_regs[PT_NIP])
#define RT_SIGFRAME_HAS_FPU(rt_sigframe) (1)
#define RT_SIGFRAME_FPU(rt_sigframe) (&(rt_sigframe)->uc.uc_mcontext)
#define rt_sigframe_erase_sigset(sigframe) memset(&sigframe->uc.uc_sigmask, 0, sizeof(k_rtsigset_t))
#define rt_sigframe_copy_sigset(sigframe, from) memcpy(&sigframe->uc.uc_sigmask, from, sizeof(k_rtsigset_t))
#define MSR_TMA (1UL << 34) /* bit 29 Trans Mem state: Transactional */
#define MSR_TMS (1UL << 33) /* bit 30 Trans Mem state: Suspended */
#define MSR_TM (1UL << 32) /* bit 31 Trans Mem Available */
#define MSR_VEC (1UL << 25)
#define MSR_VSX (1UL << 23)
#define MSR_TM_ACTIVE(x) ((((x)&MSR_TM) && ((x) & (MSR_TMA | MSR_TMS))) != 0)
#endif /* UAPI_COMPEL_ASM_SIGFRAME_H__ */
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