| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _LINUX_ELFCORE_H |
| #define _LINUX_ELFCORE_H |
| |
| #include <linux/user.h> |
| #include <linux/bug.h> |
| #include <linux/sched/task_stack.h> |
| #include <linux/types.h> |
| #include <linux/signal.h> |
| #include <linux/time.h> |
| #include <linux/ptrace.h> |
| #include <linux/fs.h> |
| #include <linux/elf.h> |
| |
| struct coredump_params; |
| |
| struct elf_siginfo |
| { |
| int si_signo; /* signal number */ |
| int si_code; /* extra code */ |
| int si_errno; /* errno */ |
| }; |
| |
| /* |
| * Definitions to generate Intel SVR4-like core files. |
| * These mostly have the same names as the SVR4 types with "elf_" |
| * tacked on the front to prevent clashes with linux definitions, |
| * and the typedef forms have been avoided. This is mostly like |
| * the SVR4 structure, but more Linuxy, with things that Linux does |
| * not support and which gdb doesn't really use excluded. |
| */ |
| struct elf_prstatus_common |
| { |
| struct elf_siginfo pr_info; /* Info associated with signal */ |
| short pr_cursig; /* Current signal */ |
| unsigned long pr_sigpend; /* Set of pending signals */ |
| unsigned long pr_sighold; /* Set of held signals */ |
| pid_t pr_pid; |
| pid_t pr_ppid; |
| pid_t pr_pgrp; |
| pid_t pr_sid; |
| struct __kernel_old_timeval pr_utime; /* User time */ |
| struct __kernel_old_timeval pr_stime; /* System time */ |
| struct __kernel_old_timeval pr_cutime; /* Cumulative user time */ |
| struct __kernel_old_timeval pr_cstime; /* Cumulative system time */ |
| }; |
| |
| struct elf_prstatus |
| { |
| struct elf_prstatus_common common; |
| elf_gregset_t pr_reg; /* GP registers */ |
| int pr_fpvalid; /* True if math co-processor being used. */ |
| }; |
| |
| #define ELF_PRARGSZ (80) /* Number of chars for args */ |
| |
| struct elf_prpsinfo |
| { |
| char pr_state; /* numeric process state */ |
| char pr_sname; /* char for pr_state */ |
| char pr_zomb; /* zombie */ |
| char pr_nice; /* nice val */ |
| unsigned long pr_flag; /* flags */ |
| __kernel_uid_t pr_uid; |
| __kernel_gid_t pr_gid; |
| pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; |
| /* Lots missing */ |
| char pr_fname[16]; /* filename of executable */ |
| char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ |
| }; |
| |
| static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs) |
| { |
| #ifdef ELF_CORE_COPY_REGS |
| ELF_CORE_COPY_REGS((*elfregs), regs) |
| #else |
| BUG_ON(sizeof(*elfregs) != sizeof(*regs)); |
| *(struct pt_regs *)elfregs = *regs; |
| #endif |
| } |
| |
| static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs) |
| { |
| #ifdef ELF_CORE_COPY_KERNEL_REGS |
| ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs); |
| #else |
| elf_core_copy_regs(elfregs, regs); |
| #endif |
| } |
| |
| static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs) |
| { |
| #if defined (ELF_CORE_COPY_TASK_REGS) |
| return ELF_CORE_COPY_TASK_REGS(t, elfregs); |
| #elif defined (task_pt_regs) |
| elf_core_copy_regs(elfregs, task_pt_regs(t)); |
| #endif |
| return 0; |
| } |
| |
| extern int dump_fpu (struct pt_regs *, elf_fpregset_t *); |
| |
| static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu) |
| { |
| #ifdef ELF_CORE_COPY_FPREGS |
| return ELF_CORE_COPY_FPREGS(t, fpu); |
| #else |
| return dump_fpu(regs, fpu); |
| #endif |
| } |
| |
| #if defined(CONFIG_UM) || defined(CONFIG_IA64) |
| /* |
| * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out |
| * extra segments containing the gate DSO contents. Dumping its |
| * contents makes post-mortem fully interpretable later without matching up |
| * the same kernel and hardware config to see what PC values meant. |
| * Dumping its extra ELF program headers includes all the other information |
| * a debugger needs to easily find how the gate DSO was being used. |
| */ |
| extern Elf_Half elf_core_extra_phdrs(void); |
| extern int |
| elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset); |
| extern int |
| elf_core_write_extra_data(struct coredump_params *cprm); |
| extern size_t elf_core_extra_data_size(void); |
| #else |
| static inline Elf_Half elf_core_extra_phdrs(void) |
| { |
| return 0; |
| } |
| |
| static inline int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset) |
| { |
| return 1; |
| } |
| |
| static inline int elf_core_write_extra_data(struct coredump_params *cprm) |
| { |
| return 1; |
| } |
| |
| static inline size_t elf_core_extra_data_size(void) |
| { |
| return 0; |
| } |
| #endif |
| |
| #endif /* _LINUX_ELFCORE_H */ |