mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
39 lines
2.4 KiB
C
39 lines
2.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/elf/elf.h"
|
|
#include "libc/limits.h"
|
|
|
|
void GetElfVirtualAddressRange(const Elf64_Ehdr *elf, size_t elfsize,
|
|
intptr_t *out_start, intptr_t *out_end) {
|
|
unsigned i;
|
|
Elf64_Phdr *phdr;
|
|
intptr_t start, end, pstart, pend;
|
|
start = INTPTR_MAX;
|
|
end = 0;
|
|
for (i = 0; i < elf->e_phnum; ++i) {
|
|
phdr = GetElfSegmentHeaderAddress(elf, elfsize, i);
|
|
if (phdr->p_type != PT_LOAD) continue;
|
|
pstart = phdr->p_vaddr;
|
|
pend = phdr->p_vaddr + phdr->p_memsz;
|
|
if (pstart < start) start = pstart;
|
|
if (pend > end) end = pend;
|
|
}
|
|
if (out_start) *out_start = start;
|
|
if (out_end) *out_end = end;
|
|
}
|