From 4835ef7784502c231f243c3133054850d23dd837 Mon Sep 17 00:00:00 2001 From: qiaonuohan Date: Tue, 18 Feb 2014 14:11:29 +0800 Subject: dump: add API to write elf notes to buffer the function can be used by write_elf32_notes/write_elf64_notes to write notes to a buffer. If fd_write_vmcore is used, write_elf32_notes/write_elf64_notes will write elf notes to vmcore directly. Instead, if buf_write_note is used, elf notes will be written to opaque->note_buf at first. Signed-off-by: Qiao Nuohan Reviewed-by: Laszlo Ersek Signed-off-by: Luiz Capitulino --- dump.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'dump.c') diff --git a/dump.c b/dump.c index 238ffa5917..2b940bddcd 100644 --- a/dump.c +++ b/dump.c @@ -76,6 +76,9 @@ typedef struct DumpState { int64_t begin; int64_t length; Error **errp; + + uint8_t *note_buf; /* buffer for notes */ + size_t note_buf_offset; /* the writing place in note_buf */ } DumpState; static int dump_cleanup(DumpState *s) @@ -749,6 +752,22 @@ static int write_buffer(int fd, off_t offset, const void *buf, size_t size) return 0; } +static int buf_write_note(const void *buf, size_t size, void *opaque) +{ + DumpState *s = opaque; + + /* note_buf is not enough */ + if (s->note_buf_offset + size > s->note_size) { + return -1; + } + + memcpy(s->note_buf + s->note_buf_offset, buf, size); + + s->note_buf_offset += size; + + return 0; +} + static ram_addr_t get_start_block(DumpState *s) { GuestPhysBlock *block; -- cgit v1.2.3