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149 lines
4.1 KiB
149 lines
4.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LINUX_ELFCORE_H |
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#define _LINUX_ELFCORE_H |
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#include <linux/user.h> |
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#include <linux/bug.h> |
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#include <linux/sched/task_stack.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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#include <linux/ptrace.h> |
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#include <linux/fs.h> |
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#include <linux/elf.h> |
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struct coredump_params; |
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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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/* |
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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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*/ |
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struct elf_prstatus_common |
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{ |
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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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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 __kernel_old_timeval pr_utime; /* User time */ |
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struct __kernel_old_timeval pr_stime; /* System time */ |
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struct __kernel_old_timeval pr_cutime; /* Cumulative user time */ |
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struct __kernel_old_timeval pr_cstime; /* Cumulative system time */ |
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}; |
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struct elf_prstatus |
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{ |
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struct elf_prstatus_common common; |
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elf_gregset_t pr_reg; /* GP registers */ |
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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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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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#if defined (ELF_CORE_COPY_TASK_REGS) |
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return ELF_CORE_COPY_TASK_REGS(t, elfregs); |
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#elif defined (task_pt_regs) |
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elf_core_copy_regs(elfregs, task_pt_regs(t)); |
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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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#if defined(CONFIG_UM) || defined(CONFIG_IA64) |
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/* |
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* These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out |
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* extra segments containing the gate DSO contents. Dumping its |
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* contents makes post-mortem fully interpretable later without matching up |
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* the same kernel and hardware config to see what PC values meant. |
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* Dumping its extra ELF program headers includes all the other information |
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* a debugger needs to easily find how the gate DSO was being used. |
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*/ |
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extern Elf_Half elf_core_extra_phdrs(void); |
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extern int |
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elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset); |
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extern int |
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elf_core_write_extra_data(struct coredump_params *cprm); |
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extern size_t elf_core_extra_data_size(void); |
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#else |
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static inline Elf_Half elf_core_extra_phdrs(void) |
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{ |
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return 0; |
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} |
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static inline int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset) |
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{ |
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return 1; |
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} |
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static inline int elf_core_write_extra_data(struct coredump_params *cprm) |
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{ |
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return 1; |
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} |
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static inline size_t elf_core_extra_data_size(void) |
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{ |
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return 0; |
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} |
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#endif |
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#endif /* _LINUX_ELFCORE_H */
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