diff options
| -rw-r--r-- | dump/dump.c | 94 |
1 files changed, 48 insertions, 46 deletions
diff --git a/dump/dump.c b/dump/dump.c index b063db1340..0d95fc5b7a 100644 --- a/dump/dump.c +++ b/dump/dump.c @@ -245,24 +245,15 @@ static void write_elf32_load(DumpState *s, MemoryMapping *memory_mapping, } } -static void write_elf64_note(DumpState *s, Error **errp) +static void write_elf64_phdr_note(DumpState *s, Elf64_Phdr *phdr) { - Elf64_Phdr phdr; - int ret; - - memset(&phdr, 0, sizeof(Elf64_Phdr)); - phdr.p_type = cpu_to_dump32(s, PT_NOTE); - phdr.p_offset = cpu_to_dump64(s, s->note_offset); - phdr.p_paddr = 0; - phdr.p_filesz = cpu_to_dump64(s, s->note_size); - phdr.p_memsz = cpu_to_dump64(s, s->note_size); - phdr.p_vaddr = 0; - - ret = fd_write_vmcore(&phdr, sizeof(Elf64_Phdr), s); - if (ret < 0) { - error_setg_errno(errp, -ret, - "dump: failed to write program header table"); - } + memset(phdr, 0, sizeof(*phdr)); + phdr->p_type = cpu_to_dump32(s, PT_NOTE); + phdr->p_offset = cpu_to_dump64(s, s->note_offset); + phdr->p_paddr = 0; + phdr->p_filesz = cpu_to_dump64(s, s->note_size); + phdr->p_memsz = cpu_to_dump64(s, s->note_size); + phdr->p_vaddr = 0; } static inline int cpu_index(CPUState *cpu) @@ -310,24 +301,15 @@ static void write_elf64_notes(WriteCoreDumpFunction f, DumpState *s, write_guest_note(f, s, errp); } -static void write_elf32_note(DumpState *s, Error **errp) +static void write_elf32_phdr_note(DumpState *s, Elf32_Phdr *phdr) { - Elf32_Phdr phdr; - int ret; - - memset(&phdr, 0, sizeof(Elf32_Phdr)); - phdr.p_type = cpu_to_dump32(s, PT_NOTE); - phdr.p_offset = cpu_to_dump32(s, s->note_offset); - phdr.p_paddr = 0; - phdr.p_filesz = cpu_to_dump32(s, s->note_size); - phdr.p_memsz = cpu_to_dump32(s, s->note_size); - phdr.p_vaddr = 0; - - ret = fd_write_vmcore(&phdr, sizeof(Elf32_Phdr), s); - if (ret < 0) { - error_setg_errno(errp, -ret, - "dump: failed to write program header table"); - } + memset(phdr, 0, sizeof(*phdr)); + phdr->p_type = cpu_to_dump32(s, PT_NOTE); + phdr->p_offset = cpu_to_dump32(s, s->note_offset); + phdr->p_paddr = 0; + phdr->p_filesz = cpu_to_dump32(s, s->note_size); + phdr->p_memsz = cpu_to_dump32(s, s->note_size); + phdr->p_vaddr = 0; } static void write_elf32_notes(WriteCoreDumpFunction f, DumpState *s, @@ -357,6 +339,32 @@ static void write_elf32_notes(WriteCoreDumpFunction f, DumpState *s, write_guest_note(f, s, errp); } +static void write_elf_phdr_note(DumpState *s, Error **errp) +{ + ERRP_GUARD(); + Elf32_Phdr phdr32; + Elf64_Phdr phdr64; + void *phdr; + size_t size; + int ret; + + if (dump_is_64bit(s)) { + write_elf64_phdr_note(s, &phdr64); + size = sizeof(phdr64); + phdr = &phdr64; + } else { + write_elf32_phdr_note(s, &phdr32); + size = sizeof(phdr32); + phdr = &phdr32; + } + + ret = fd_write_vmcore(phdr, size, s); + if (ret < 0) { + error_setg_errno(errp, -ret, + "dump: failed to write program header table"); + } +} + static void write_elf_section(DumpState *s, int type, Error **errp) { Elf32_Shdr shdr32; @@ -550,13 +558,13 @@ static void dump_begin(DumpState *s, Error **errp) return; } - if (dump_is_64bit(s)) { - /* write PT_NOTE to vmcore */ - write_elf64_note(s, errp); - if (*errp) { - return; - } + /* write PT_NOTE to vmcore */ + write_elf_phdr_note(s, errp); + if (*errp) { + return; + } + if (dump_is_64bit(s)) { /* write all PT_LOAD to vmcore */ write_elf_loads(s, errp); if (*errp) { @@ -577,12 +585,6 @@ static void dump_begin(DumpState *s, Error **errp) return; } } else { - /* write PT_NOTE to vmcore */ - write_elf32_note(s, errp); - if (*errp) { - return; - } - /* write all PT_LOAD to vmcore */ write_elf_loads(s, errp); if (*errp) { |