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b99eae2809
Some of them are already in system header files but until I debug all things I simply picked up kernel's definitions just to be more-less safe. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
115 lines
2.4 KiB
C
115 lines
2.4 KiB
C
#ifndef CR_RESTORER_H__
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#define CR_RESTORER_H__
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#include <signal.h>
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#include "compiler.h"
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#include "types.h"
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#include "image.h"
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#ifndef CONFIG_X86_64
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# error Only x86-64 is supported
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#endif
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#define RESTORER_ARGS_SIZE 512
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#define RESTORER_STACK_MIDDLE (16 << 10)
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#define RESTORER_STACK_SIZE (RESTORER_STACK_MIDDLE * 2)
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long restorer(long cmd);
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typedef long (*restorer_fcall_t) (long cmd);
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#define RESTORER_CMD__NONE 0
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#define RESTORER_CMD__GET_ARG_OFFSET 1
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#define RESTORER_CMD__GET_SELF_LEN 2
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#define RESTORER_CMD__PR_ARG_STRING 3
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#define RESTORER_CMD__RESTORE_CORE 4
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#define ABI_RED_ZONE 128
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#define align_sigframe(sp) \
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do { \
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sp = round_down(sp, 16) - 8; \
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} while (0)
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struct restore_core_args {
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void *self_entry; /* restorer placed at */
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long self_size; /* size for restorer granted */
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char core_path[64]; /* path to a core file */
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char self_vmas_path[64]; /* path to a self-vmas file */
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};
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struct rt_sigcontext {
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unsigned long r8;
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unsigned long r9;
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unsigned long r10;
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unsigned long r11;
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unsigned long r12;
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unsigned long r13;
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unsigned long r14;
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unsigned long r15;
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unsigned long rdi;
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unsigned long rsi;
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unsigned long rbp;
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unsigned long rbx;
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unsigned long rdx;
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unsigned long rax;
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unsigned long rcx;
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unsigned long rsp;
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unsigned long rip;
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unsigned long eflags;
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unsigned short cs;
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unsigned short gs;
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unsigned short fs;
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unsigned short __pad0;
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unsigned long err;
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unsigned long trapno;
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unsigned long oldmask;
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unsigned long cr2;
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struct user_fpregs_entry *fpstate;
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unsigned long reserved1[8];
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};
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#ifndef __ARCH_SI_PREAMBLE_SIZE
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#define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
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#endif
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#define SI_MAX_SIZE 128
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#ifndef SI_PAD_SIZE
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#define SI_PAD_SIZE ((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int))
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#endif
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typedef struct rt_siginfo {
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int si_signo;
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int si_errno;
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int si_code;
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int _pad[SI_PAD_SIZE];
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} rt_siginfo_t;
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typedef struct {
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unsigned long sig[1];
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} rt_sigset_t;
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typedef struct rt_sigaltstack {
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void *ss_sp;
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int ss_flags;
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size_t ss_size;
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} rt_stack_t;
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struct rt_ucontext {
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unsigned long uc_flags;
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struct rt_ucontext *uc_link;
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rt_stack_t uc_stack;
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struct rt_sigcontext uc_mcontext;
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rt_sigset_t uc_sigmask; /* mask last for extensibility */
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};
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struct rt_sigframe {
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char *pretcode;
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struct rt_ucontext uc;
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struct rt_siginfo info;
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/* fp state follows here */
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};
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#endif /* CR_RESTORER_H__ */
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