14cc85c207
new file: arch/x86/kernel/gencore.c new file: arch/x86/kernel/include/elfcore.h new file: arch/x86/kernel/include/elfcoregpl.h
99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
#include <ihk/debug.h>
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#include <kmalloc.h>
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#include <cls.h>
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#include <list.h>
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#include <process.h>
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#include <elfcore.h>
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#define DEBUG_PRINT_GENCORE
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#ifdef DEBUG_PRINT_GENCORE
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#define dkprintf(...) kprintf(__VA_ARGS__)
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#define ekprintf(...) kprintf(__VA_ARGS__)
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#else
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#define dkprintf(...)
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#define ekprintf(...) kprintf(__VA_ARGS__)
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#endif
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/*
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* Generate a core file image, which consists of many chunks.
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* Returns an allocated table, an etnry of which is a pair of the address
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* of a chunk and its length.
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*/
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int gencore(struct process *proc, void *regs,
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struct coretable **coretable, int *chunks)
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{
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Elf64_Ehdr eh;
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{
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struct vm_regions region = proc->vm->region;
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dkprintf("text: %x-%x\n", region.text_start, region.text_end);
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dkprintf("data: %x-%x\n", region.data_start, region.data_end);
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dkprintf("brk: %x-%x\n", region.brk_start, region.brk_end);
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dkprintf("map: %x-%x\n", region.map_start, region.map_end);
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dkprintf("stack: %x-%x\n", region.stack_start, region.stack_end);
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dkprintf("user: %x-%x\n", region.user_start, region.user_end);
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}
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{
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struct vm_range *range;
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struct process_vm *vm = proc->vm;
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if (vm == NULL) {
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dkprintf("no vm found.\n");
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return -1;
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}
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list_for_each_entry(range, &vm->vm_range_list, list) {
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dkprintf("start:%x end:%x flag:%x objoff:%x\n",
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range->start, range->end, range->flag, range->objoff);
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}
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}
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/* ELF header */
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eh.e_ident[EI_MAG0] = 0x7f;
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eh.e_ident[EI_MAG1] = 'E';
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eh.e_ident[EI_MAG2] = 'L';
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eh.e_ident[EI_MAG3] = 'F';
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eh.e_ident[EI_CLASS] = ELFCLASS64;
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eh.e_ident[EI_DATA] = ELFDATA2LSB;
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eh.e_ident[EI_VERSION] = El_VERSION;
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eh.e_ident[EI_OSABI] = ELFOSABI_NONE;
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eh.e_ident[EI_ABIVERSION] = EI_ABIVERSION;
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eh.e_type = ET_CORE;
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eh.e_machine = EM_K10M;
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eh.e_version = EV_CURRENT;
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dkprintf("now generate a core file image\n");
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/* program header table */
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/* segments */
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*coretable = kmalloc(sizeof(struct coretable) * 3, IHK_MC_AP_NOWAIT);
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if (!*coretable) {
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dkprintf("could not alloc a coretable.\n");
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return -1;
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}
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(*coretable)[0].len = 8;
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(*coretable)[0].addr = virt_to_phys("this is ");
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(*coretable)[1].len = 7;
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(*coretable)[1].addr = virt_to_phys("a test ");
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(*coretable)[2].len = 15;
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(*coretable)[2].addr = virt_to_phys("for coredump.\n");
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dkprintf("generated a core table.\n");
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*chunks = 3;
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return 0;
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}
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