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https://github.com/checkpoint-restore/criu.git
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1c0716924b
All those compel functions can fail by various reasons. It may be status of the system, interruption by user or anything else. It's really desired to handle as many PIE related errors as possible otherwise it's hard to analyze statuses of parasite/restorer and the C/R process. At least warning for logs should be produced or even C/R stopped. Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: Andrei Vagin <avagin@gmail.com>
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/*
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* Don't include it directly but use "arch-sigframe.h" instead.
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*/
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#ifndef UAPI_COMPEL_SIGFRAME_COMMON_H__
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#define UAPI_COMPEL_SIGFRAME_COMMON_H__
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#ifndef UAPI_COMPEL_ASM_SIGFRAME_H__
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# error "Direct inclusion is forbidden, use <compel/asm/sigframe.h> instead"
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#endif
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#include "common/compiler.h"
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#include <signal.h>
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#include <compel/plugins/std/asm/syscall-types.h>
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struct rt_sigframe;
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#ifndef SIGFRAME_MAX_OFFSET
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# define SIGFRAME_MAX_OFFSET RT_SIGFRAME_OFFSET(0)
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#endif
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#define RESTORE_STACK_ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
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/* sigframe should be aligned on 64 byte for x86 and 8 bytes for arm */
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#define RESTORE_STACK_SIGFRAME \
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RESTORE_STACK_ALIGN(sizeof(struct rt_sigframe) + SIGFRAME_MAX_OFFSET, 64)
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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 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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k_rtsigset_t uc_sigmask; /* mask last for extensibility */
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int _unused[32 - (sizeof (k_rtsigset_t) / sizeof (int))];
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unsigned long uc_regspace[128] __attribute__((aligned(8)));
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};
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extern int __must_check sigreturn_prep_fpu_frame(struct rt_sigframe *frame,
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struct rt_sigframe *rframe);
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#endif /* UAPI_COMPEL_SIGFRAME_COMMON_H__ */
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