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support PIE executable for PVAS

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This commit is contained in:
Tomoki Shirasawa
2015-12-14 11:05:28 +09:00
parent 5c1dad1660
commit bb81f84709
4 changed files with 27 additions and 0 deletions
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3
executer/user/mcexec.c
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@ -183,6 +183,7 @@ struct program_load_desc *load_elf(FILE *fp, char **interp_pathp)
desc = malloc(sizeof(struct program_load_desc)
+ sizeof(struct program_image_section) * nhdrs);
memset(desc, '\0', sizeof(struct program_load_desc));
desc->shell_path[0] = '\0';
fseek(fp, hdr.e_phoff, SEEK_SET);
j = 0;
@ -243,6 +244,8 @@ struct program_load_desc *load_elf(FILE *fp, char **interp_pathp)
}
desc->pid = getpid();
desc->pgid = getpgid(0);
if(*interp_pathp)
desc->reloc = hdr.e_type == ET_DYN;
desc->entry = hdr.e_entry;
ioctl(fd, MCEXEC_UP_GET_CREDV, desc->cred);
desc->at_phdr = load_addr + hdr.e_phoff;