diff options
Diffstat (limited to 'include/linux/elfcore.h')
| -rw-r--r-- | include/linux/elfcore.h | 132 |
1 files changed, 98 insertions, 34 deletions
diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h index cdd3d13efce7..bd5560542c79 100644 --- a/include/linux/elfcore.h +++ b/include/linux/elfcore.h @@ -1,10 +1,78 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_ELFCORE_H #define _LINUX_ELFCORE_H #include <linux/user.h> #include <linux/bug.h> -#include <asm/elf.h> -#include <uapi/linux/elfcore.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 */ + /* + * The hard-coded 16 is derived from TASK_COMM_LEN, but it can't be + * changed as it is exposed to userspace. We'd better make it hard-coded + * here. + */ + 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) { @@ -16,43 +84,19 @@ static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *re #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) +#else 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 -} - -#ifdef ELF_CORE_COPY_XFPREGS -static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu) -{ - return ELF_CORE_COPY_XFPREGS(t, xfpu); -} -#endif +int elf_core_copy_task_fpregs(struct task_struct *t, elf_fpregset_t *fpu); +#ifdef CONFIG_ARCH_BINFMT_ELF_EXTRA_PHDRS /* * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out * extra segments containing the gate DSO contents. Dumping its @@ -61,12 +105,32 @@ static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregse * 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 Elf_Half elf_core_extra_phdrs(struct coredump_params *cprm); extern int -elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size, - unsigned long limit); +elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset); extern int -elf_core_write_extra_data(struct file *file, size_t *size, unsigned long limit); -extern size_t elf_core_extra_data_size(void); +elf_core_write_extra_data(struct coredump_params *cprm); +extern size_t elf_core_extra_data_size(struct coredump_params *cprm); +#else +static inline Elf_Half elf_core_extra_phdrs(struct coredump_params *cprm) +{ + 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(struct coredump_params *cprm) +{ + return 0; +} +#endif /* CONFIG_ARCH_BINFMT_ELF_EXTRA_PHDRS */ #endif /* _LINUX_ELFCORE_H */ |