projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1da177e4 LT |
2 | #ifndef _LINUX_ELFCORE_H |
| 3 | #define _LINUX_ELFCORE_H | |
| 4 | ||
| 1da177e4 | 5 | #include <linux/user.h> |
| 187f1882 | 6 | #include <linux/bug.h> |
| 68db0cf1 IM |
7 | #include <linux/sched/task_stack.h> |
| 8 | ||
| 1da177e4 | 9 | #include <asm/elf.h> |
| 607ca46e | 10 | #include <uapi/linux/elfcore.h> |
| 1da177e4 | 11 | |
| 506f21c5 AV |
12 | struct coredump_params; |
| 13 | ||
| 1da177e4 LT |
14 | static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs) |
| 15 | { | |
| 16 | #ifdef ELF_CORE_COPY_REGS | |
| 17 | ELF_CORE_COPY_REGS((*elfregs), regs) | |
| 18 | #else | |
| 19 | BUG_ON(sizeof(*elfregs) != sizeof(*regs)); | |
| 20 | *(struct pt_regs *)elfregs = *regs; | |
| 21 | #endif | |
| 22 | } | |
| 23 | ||
| 6cd61c0b TH |
24 | static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs) |
| 25 | { | |
| 26 | #ifdef ELF_CORE_COPY_KERNEL_REGS | |
| 27 | ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs); | |
| 28 | #else | |
| 29 | elf_core_copy_regs(elfregs, regs); | |
| 30 | #endif | |
| 31 | } | |
| 32 | ||
| 1da177e4 LT |
33 | static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs) |
| 34 | { | |
| e9bf0cc7 | 35 | #if defined (ELF_CORE_COPY_TASK_REGS) |
| 1da177e4 | 36 | return ELF_CORE_COPY_TASK_REGS(t, elfregs); |
| e9bf0cc7 | 37 | #elif defined (task_pt_regs) |
| a65e7bfc | 38 | elf_core_copy_regs(elfregs, task_pt_regs(t)); |
| 1da177e4 LT |
39 | #endif |
| 40 | return 0; | |
| 41 | } | |
| 42 | ||
| 43 | extern int dump_fpu (struct pt_regs *, elf_fpregset_t *); | |
| 44 | ||
| 45 | static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu) | |
| 46 | { | |
| 47 | #ifdef ELF_CORE_COPY_FPREGS | |
| 48 | return ELF_CORE_COPY_FPREGS(t, fpu); | |
| 49 | #else | |
| 50 | return dump_fpu(regs, fpu); | |
| 51 | #endif | |
| 52 | } | |
| 53 | ||
| 54 | #ifdef ELF_CORE_COPY_XFPREGS | |
| 55 | static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu) | |
| 56 | { | |
| 57 | return ELF_CORE_COPY_XFPREGS(t, xfpu); | |
| 58 | } | |
| 59 | #endif | |
| 60 | ||
| 1fcccbac DH |
61 | /* |
| 62 | * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out | |
| 63 | * extra segments containing the gate DSO contents. Dumping its | |
| 64 | * contents makes post-mortem fully interpretable later without matching up | |
| 65 | * the same kernel and hardware config to see what PC values meant. | |
| 66 | * Dumping its extra ELF program headers includes all the other information | |
| 67 | * a debugger needs to easily find how the gate DSO was being used. | |
| 68 | */ | |
| 69 | extern Elf_Half elf_core_extra_phdrs(void); | |
| 70 | extern int | |
| 506f21c5 | 71 | elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset); |
| 1fcccbac | 72 | extern int |
| aa3e7eaf | 73 | elf_core_write_extra_data(struct coredump_params *cprm); |
| 8d9032bb | 74 | extern size_t elf_core_extra_data_size(void); |
| 1da177e4 LT |
75 | |
| 76 | #endif /* _LINUX_ELFCORE_H */ |