x86_64: add freestanding port

pull/21/head
Ariadne Conill 2020-12-06 03:22:27 -07:00
parent 794b4f92aa
commit 9aef11752f
2 changed files with 63 additions and 1 deletions

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@ -0,0 +1,62 @@
#ifndef LIBUCONTEXT_BITS_H
#define LIBUCONTEXT_BITS_H
#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)
typedef long long libucontext_greg_t, libucontext_gregset_t[23];
typedef struct libucontext_fpstate {
unsigned short cwd, swd, ftw, fop;
unsigned long long rip, rdp;
unsigned mxcsr, mxcr_mask;
struct {
unsigned short significand[4], exponent, padding[3];
} _st[8];
struct {
unsigned element[4];
} _xmm[16];
unsigned padding[24];
} *libucontext_fpregset_t;
typedef struct {
libucontext_gregset_t gregs;
libucontext_fpregset_t fpregs;
unsigned long long __reserved1[8];
} libucontext_mcontext_t;
typedef struct {
void *ss_sp;
int ss_flags;
size_t ss_size;
} libucontext_stack_t;
typedef struct libucontext_ucontext {
unsigned long uc_flags;
struct libucontext_ucontext *uc_link;
libucontext_stack_t uc_stack;
libucontext_mcontext_t uc_mcontext;
} libucontext_ucontext_t;
#endif

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@ -22,7 +22,7 @@ extern void libucontext_trampoline(void);
void
libucontext_makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
libucontext_makecontext(libucontext_ucontext_t *ucp, void (*func)(void), int argc, ...)
{
libucontext_greg_t *sp;
va_list va;