6cd61c0baa
ELF core dump is used for both user land core dump and kernel crash dump. Depending on architecture, register might need to be accessed differently for userland and kernel. Allow architectures to define ELF_CORE_COPY_KERNEL_REGS() and use different operation for kernel register dump. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
153 lines
4.1 KiB
C
153 lines
4.1 KiB
C
#ifndef _LINUX_ELFCORE_H
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#define _LINUX_ELFCORE_H
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#include <linux/types.h>
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#include <linux/signal.h>
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#include <linux/time.h>
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#ifdef __KERNEL__
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#include <linux/user.h>
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#endif
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#include <linux/ptrace.h>
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struct elf_siginfo
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{
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int si_signo; /* signal number */
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int si_code; /* extra code */
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int si_errno; /* errno */
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};
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#ifdef __KERNEL__
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#include <asm/elf.h>
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#endif
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#ifndef __KERNEL__
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typedef elf_greg_t greg_t;
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typedef elf_gregset_t gregset_t;
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typedef elf_fpregset_t fpregset_t;
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typedef elf_fpxregset_t fpxregset_t;
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#define NGREG ELF_NGREG
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#endif
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/*
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* Definitions to generate Intel SVR4-like core files.
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* These mostly have the same names as the SVR4 types with "elf_"
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* tacked on the front to prevent clashes with linux definitions,
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* and the typedef forms have been avoided. This is mostly like
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* the SVR4 structure, but more Linuxy, with things that Linux does
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* not support and which gdb doesn't really use excluded.
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* Fields present but not used are marked with "XXX".
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*/
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struct elf_prstatus
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{
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#if 0
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long pr_flags; /* XXX Process flags */
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short pr_why; /* XXX Reason for process halt */
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short pr_what; /* XXX More detailed reason */
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#endif
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struct elf_siginfo pr_info; /* Info associated with signal */
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short pr_cursig; /* Current signal */
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unsigned long pr_sigpend; /* Set of pending signals */
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unsigned long pr_sighold; /* Set of held signals */
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#if 0
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struct sigaltstack pr_altstack; /* Alternate stack info */
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struct sigaction pr_action; /* Signal action for current sig */
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#endif
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pid_t pr_pid;
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pid_t pr_ppid;
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pid_t pr_pgrp;
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pid_t pr_sid;
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struct timeval pr_utime; /* User time */
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struct timeval pr_stime; /* System time */
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struct timeval pr_cutime; /* Cumulative user time */
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struct timeval pr_cstime; /* Cumulative system time */
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#if 0
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long pr_instr; /* Current instruction */
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#endif
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elf_gregset_t pr_reg; /* GP registers */
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#ifdef CONFIG_BINFMT_ELF_FDPIC
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/* When using FDPIC, the loadmap addresses need to be communicated
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* to GDB in order for GDB to do the necessary relocations. The
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* fields (below) used to communicate this information are placed
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* immediately after ``pr_reg'', so that the loadmap addresses may
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* be viewed as part of the register set if so desired.
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*/
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unsigned long pr_exec_fdpic_loadmap;
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unsigned long pr_interp_fdpic_loadmap;
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#endif
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int pr_fpvalid; /* True if math co-processor being used. */
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};
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#define ELF_PRARGSZ (80) /* Number of chars for args */
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struct elf_prpsinfo
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{
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char pr_state; /* numeric process state */
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char pr_sname; /* char for pr_state */
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char pr_zomb; /* zombie */
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char pr_nice; /* nice val */
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unsigned long pr_flag; /* flags */
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__kernel_uid_t pr_uid;
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__kernel_gid_t pr_gid;
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pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
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/* Lots missing */
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char pr_fname[16]; /* filename of executable */
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char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
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};
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#ifndef __KERNEL__
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typedef struct elf_prstatus prstatus_t;
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typedef struct elf_prpsinfo prpsinfo_t;
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#define PRARGSZ ELF_PRARGSZ
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#endif
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#ifdef __KERNEL__
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static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
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{
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#ifdef ELF_CORE_COPY_REGS
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ELF_CORE_COPY_REGS((*elfregs), regs)
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#else
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BUG_ON(sizeof(*elfregs) != sizeof(*regs));
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*(struct pt_regs *)elfregs = *regs;
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#endif
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}
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static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
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{
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#ifdef ELF_CORE_COPY_KERNEL_REGS
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ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs);
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#else
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elf_core_copy_regs(elfregs, regs);
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#endif
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}
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static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
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{
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#ifdef ELF_CORE_COPY_TASK_REGS
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return ELF_CORE_COPY_TASK_REGS(t, elfregs);
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#endif
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return 0;
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}
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extern int dump_fpu (struct pt_regs *, elf_fpregset_t *);
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static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu)
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{
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#ifdef ELF_CORE_COPY_FPREGS
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return ELF_CORE_COPY_FPREGS(t, fpu);
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#else
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return dump_fpu(regs, fpu);
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#endif
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}
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#ifdef ELF_CORE_COPY_XFPREGS
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static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
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{
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return ELF_CORE_COPY_XFPREGS(t, xfpu);
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}
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#endif
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#endif /* __KERNEL__ */
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#endif /* _LINUX_ELFCORE_H */
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