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vfs: coredump fix: write zeroes for missing memory

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This commit is contained in:
Ben Gras 2013-03-16 04:13:02 +00:00
parent 0022ee2cb5
commit 429c670e40
1 changed files with 3 additions and 4 deletions
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7
servers/vfs/coredump.c
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@ -116,7 +116,6 @@ static void fill_prog_header (Elf_Phdr *prog_header, Elf_Word p_type,
prog_header->p_flags = p_flags;
prog_header->p_filesz = p_filesz;
prog_header->p_memsz = p_memsz;
}
#define PADBYTES 4
@ -310,9 +309,9 @@ static void dump_segments(struct filp *f, Elf_Phdr phdrs[], int phnum)
(phys_bytes) CLICK_SIZE);
if(r != OK) {
printf("VFS: vircopy failed for %d @ 0x%lx during coredump\n",
fp->fp_endpoint, p);
break;
/* memory didn't exist; write as zeroes */
memset(buf, 0, sizeof(buf));
continue;
}
write_buf(f, (char *) buf, (off + CLICK_SIZE <= (off_t) len) ?