mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-05-17 02:52:40 +00:00
2ab9e9f7fd
- Introduce portable sched_getcpu() api - Support GCC's __target_clones__ feature - Make fma() go faster on x86 in default mode - Remove some asan checks from core libraries - WinMain() now ensures $HOME and $USER are defined
138 lines
3.2 KiB
C
138 lines
3.2 KiB
C
#ifndef COSMOPOLITAN_LIBC_CALLS_UCONTEXT_H_
|
|
#define COSMOPOLITAN_LIBC_CALLS_UCONTEXT_H_
|
|
#include "libc/calls/struct/sigaltstack.h"
|
|
#include "libc/calls/struct/sigset.h"
|
|
COSMOPOLITAN_C_START_
|
|
|
|
#ifdef __x86_64__
|
|
|
|
#if defined(_GNU_SOURCE) || defined(_COSMO_SOURCE)
|
|
#define REG_R8 0
|
|
#define REG_R9 1
|
|
#define REG_R10 2
|
|
#define REG_R11 3
|
|
#define REG_R12 4
|
|
#define REG_R13 5
|
|
#define REG_R14 6
|
|
#define REG_R15 7
|
|
#define REG_RDI 8
|
|
#define REG_RSI 9
|
|
#define REG_RBP 10
|
|
#define REG_RBX 11
|
|
#define REG_RDX 12
|
|
#define REG_RAX 13
|
|
#define REG_RCX 14
|
|
#define REG_RSP 15
|
|
#define REG_RIP 16
|
|
#define REG_EFL 17
|
|
#define REG_CSGSFS 18
|
|
#define REG_ERR 19
|
|
#define REG_TRAPNO 20
|
|
#define REG_OLDMASK 21
|
|
#define REG_CR2 22
|
|
#endif
|
|
|
|
struct XmmRegister {
|
|
uint64_t u64[2];
|
|
};
|
|
|
|
struct FpuStackEntry {
|
|
uint16_t significand[4];
|
|
uint16_t exponent;
|
|
uint16_t padding[3];
|
|
};
|
|
|
|
struct thatispacked FpuState {
|
|
uint16_t cwd;
|
|
uint16_t swd;
|
|
uint16_t ftw;
|
|
uint16_t fop;
|
|
uint64_t rip;
|
|
uint64_t rdp;
|
|
uint32_t mxcsr;
|
|
uint32_t mxcr_mask;
|
|
struct FpuStackEntry st[8];
|
|
struct XmmRegister xmm[16];
|
|
uint32_t __padding[24];
|
|
};
|
|
|
|
typedef long long greg_t;
|
|
typedef greg_t gregset_t[23];
|
|
typedef struct FpuState *fpregset_t;
|
|
|
|
#endif /* __x86_64__ */
|
|
|
|
struct sigcontext {
|
|
#ifdef __x86_64__
|
|
union {
|
|
struct {
|
|
uint64_t r8; /* 40 */
|
|
uint64_t r9; /* 48 */
|
|
uint64_t r10; /* 56 */
|
|
uint64_t r11; /* 64 */
|
|
uint64_t r12; /* 72 */
|
|
uint64_t r13; /* 80 */
|
|
uint64_t r14; /* 88 */
|
|
uint64_t r15; /* 96 */
|
|
uint64_t rdi; /* 104 */
|
|
uint64_t rsi; /* 112 */
|
|
uint64_t rbp; /* 120 */
|
|
uint64_t rbx; /* 128 */
|
|
uint64_t rdx; /* 136 */
|
|
uint64_t rax; /* 144 */
|
|
uint64_t rcx; /* 152 */
|
|
uint64_t rsp; /* 160 */
|
|
uint64_t rip; /* 168 */
|
|
uint64_t eflags; /* 176 */
|
|
uint16_t cs;
|
|
uint16_t gs;
|
|
uint16_t fs;
|
|
uint16_t __pad0;
|
|
uint64_t err;
|
|
uint64_t trapno;
|
|
uint64_t oldmask;
|
|
uint64_t cr2;
|
|
};
|
|
gregset_t gregs;
|
|
};
|
|
struct FpuState *fpregs; /* zero when no fpu context */
|
|
uint64_t __pad1[8];
|
|
#elif defined(__aarch64__)
|
|
uint64_t fault_address;
|
|
uint64_t regs[31];
|
|
uint64_t sp;
|
|
uint64_t pc;
|
|
uint64_t pstate;
|
|
uint8_t __reserved[4096] __attribute__((__aligned__(16)));
|
|
#endif /* __x86_64__ */
|
|
};
|
|
|
|
typedef struct sigcontext mcontext_t;
|
|
|
|
struct ucontext {
|
|
uint64_t uc_flags; /* don't use this */
|
|
struct ucontext *uc_link;
|
|
stack_t uc_stack;
|
|
#ifdef __x86_64__
|
|
struct sigcontext uc_mcontext;
|
|
sigset_t uc_sigmask;
|
|
uint64_t __pad[2];
|
|
struct FpuState __fpustate; /* for cosmo on non-linux */
|
|
#elif defined(__aarch64__)
|
|
sigset_t uc_sigmask;
|
|
uint8_t __unused[1024 / 8];
|
|
struct sigcontext uc_mcontext;
|
|
#endif
|
|
} forcealign(16);
|
|
|
|
typedef struct ucontext ucontext_t;
|
|
|
|
int getcontext(ucontext_t *) dontthrow;
|
|
int setcontext(const ucontext_t *) dontthrow;
|
|
int swapcontext(ucontext_t *, const ucontext_t *) dontthrow returnstwice;
|
|
void makecontext(ucontext_t *, void *, int, ...) dontthrow dontcallback;
|
|
void __sig_restore(const ucontext_t *) wontreturn;
|
|
|
|
COSMOPOLITAN_C_END_
|
|
#endif /* COSMOPOLITAN_LIBC_CALLS_UCONTEXT_H_ */
|