fs/proc/vmcore.c

14 #include <linux/elf.h>
38 /* Stores the pointer to the buffer containing kernel elf core headers. */
181  * Architectures may override this function to allocate ELF header in 2nd kernel
195  * Architectures may override this function to read from ELF header
314 /* Read from the ELF header and then the crash dump. On error, negative value is
329 	/* Read ELF core header */  in __read_vmcore()
342 	/* Read ELF note segment */  in __read_vmcore()
346 		/* We add device dumps before other elf notes because the  in __read_vmcore()
347 		 * other elf notes may not fill the elf notes buffer  in __read_vmcore()
349 		 * between the elf notes and the device dumps. Tools will  in __read_vmcore()
352 		 * the other elf notes ensure that zero-filled data can be  in __read_vmcore()
373 		/* Read remaining elf notes */  in __read_vmcore()
482  * non-contiguous objects (ELF header, ELF note segment and memory
484  * virtually contiguous user-space in ELF layout.
612 		/* We add device dumps before other elf notes because the  in mmap_vmcore()
613 		 * other elf notes may not fill the elf notes buffer  in mmap_vmcore()
615 		 * between the elf notes and the device dumps. Tools will  in mmap_vmcore()
618 		 * the other elf notes ensure that zero-filled data can be  in mmap_vmcore()
620 		 * other elf notes can be properly mmaped at page aligned  in mmap_vmcore()
645 		/* Read remaining elf notes */  in mmap_vmcore()
720  * @ehdr_ptr: ELF header
723  * program header table pointed to by @ehdr_ptr to real size of ELF
773  * headers and sum of real size of their ELF note segment headers and
776  * @ehdr_ptr: ELF header
786  * and each of PT_NOTE program headers has actual ELF note segment
809  * copy_notes_elf64 - copy ELF note segments in a given buffer
811  * @ehdr_ptr: ELF header
812  * @notes_buf: buffer into which ELF note segments are copied
814  * This function is used to copy ELF note segment in the 1st kernel
817  * real ELF note segment headers and data.
821  * and each of PT_NOTE program headers has actual ELF note segment
911  * @ehdr_ptr: ELF header
914  * program header table pointed to by @ehdr_ptr to real size of ELF
964  * headers and sum of real size of their ELF note segment headers and
967  * @ehdr_ptr: ELF header
977  * and each of PT_NOTE program headers has actual ELF note segment
1000  * copy_notes_elf32 - copy ELF note segments in a given buffer
1002  * @ehdr_ptr: ELF header
1003  * @notes_buf: buffer into which ELF note segments are copied
1005  * This function is used to copy ELF note segment in the 1st kernel
1008  * real ELF note segment headers and data.
1012  * and each of PT_NOTE program headers has actual ELF note segment
1115 	/* Skip ELF header, program headers and ELF note segment. */  in process_ptload_program_headers_elf64()
1158 	/* Skip ELF header, program headers and ELF note segment. */  in process_ptload_program_headers_elf32()
1194 	/* Skip ELF header, program headers and ELF note segment. */  in set_vmcore_list_offsets()
1219 	/* Read ELF header */  in parse_crash_elf64_headers()
1234 		pr_warn("Warning: Core image elf header is not sane\n");  in parse_crash_elf64_headers()
1238 	/* Read in all elf headers. */  in parse_crash_elf64_headers()
1275 	/* Read ELF header */  in parse_crash_elf32_headers()
1290 		pr_warn("Warning: Core image elf header is not sane\n");  in parse_crash_elf32_headers()
1294 	/* Read in all elf headers. */  in parse_crash_elf32_headers()
1333 		pr_warn("Warning: Core image elf header not found\n");  in parse_crash_elf_headers()
1346 		pr_warn("Warning: Core image elf header is not sane\n");  in parse_crash_elf_headers()
1381  * vmcoredd_update_program_headers - Update all ELF program headers
1382  * @elfptr: Pointer to elf header
1383  * @elfnotesz: Size of elf notes aligned to page size
1384  * @vmcoreddsz: Size of device dumps to be added to elf note header
1386  * Determine type of ELF header (Elf64 or Elf32) and update the elf note size.
1387  * Also update the offsets of all the program headers after the elf note header.
1444  * ELF header
1447  * Update the total size of all the device dumps and update the ELF program
1471  * Write ELF note at the beginning of the buffer to indicate vmcore device
1559 	/* Allow architectures to allocate ELF header in 2nd kernel */  in vmcore_init()