#include #include #include #include #include #include #include /* opt_mem: Limit of physical RAM. Any RAM beyond this point is ignored. */ unsigned long long opt_mem; static void parse_mem(char *s) { opt_mem = parse_size_and_unit(s, NULL); } custom_param("mem", parse_mem); struct e820map e820; static void __init add_memory_region(unsigned long long start, unsigned long long size, int type) { int x; /*if (!efi_enabled)*/ { x = e820.nr_map; if (x == E820MAX) { printk(KERN_ERR "Ooops! Too many entries in the memory map!\n"); return; } e820.map[x].addr = start; e820.map[x].size = size; e820.map[x].type = type; e820.nr_map++; } } /* add_memory_region */ static void __init print_e820_memory_map(struct e820entry *map, int entries) { int i; for (i = 0; i < entries; i++) { printk(" %016Lx - %016Lx ", (unsigned long long)(map[i].addr), (unsigned long long)(map[i].addr + map[i].size)); switch (map[i].type) { case E820_RAM: printk("(usable)\n"); break; case E820_RESERVED: printk("(reserved)\n"); break; case E820_ACPI: printk("(ACPI data)\n"); break; case E820_NVS: printk("(ACPI NVS)\n"); break; case E820_UNUSABLE: printk("(unusable)\n"); break; default: printk("type %u\n", map[i].type); break; } } } /* * Sanitize the BIOS e820 map. * * Some e820 responses include overlapping entries. The following * replaces the original e820 map with a new one, removing overlaps. * */ struct change_member { struct e820entry *pbios; /* pointer to original bios entry */ unsigned long long addr; /* address for this change point */ }; static struct change_member change_point_list[2*E820MAX] __initdata; static struct change_member *change_point[2*E820MAX] __initdata; static struct e820entry *overlap_list[E820MAX] __initdata; static struct e820entry new_bios[E820MAX] __initdata; static int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map) { struct change_member *change_tmp; unsigned long current_type, last_type; unsigned long long last_addr; int chgidx, still_changing; int overlap_entries; int new_bios_entry; int old_nr, new_nr, chg_nr; int i; /* Visually we're performing the following (1,2,3,4 = memory types)... Sample memory map (w/overlaps): ____22__________________ ______________________4_ ____1111________________ _44_____________________ 11111111________________ ____________________33__ ___________44___________ __________33333_________ ______________22________ ___________________2222_ _________111111111______ _____________________11_ _________________4______ Sanitized equivalent (no overlap): 1_______________________ _44_____________________ ___1____________________ ____22__________________ ______11________________ _________1______________ __________3_____________ ___________44___________ _____________33_________ _______________2________ ________________1_______ _________________4______ ___________________2____ ____________________33__ ______________________4_ */ /* if there's only one memory region, don't bother */ if (*pnr_map < 2) return -1; old_nr = *pnr_map; /* bail out if we find any unreasonable addresses in bios map */ for (i=0; iaddr = biosmap[i].addr; change_point[chgidx++]->pbios = &biosmap[i]; change_point[chgidx]->addr = biosmap[i].addr + biosmap[i].siz
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.

from __future__ import absolute_import, division, print_function

import binascii
import os

import pytest

from cryptography.hazmat.bindings import utils


def test_create_modulename():
    cdef_source = "cdef sources go here"
    source = "source code"
    name = utils._create_modulename(cdef_source, source, "2.7")
    assert name == "_Cryptography_cffi_bcba7f4bx4a14b588"
    name = utils._create_modulename(cdef_source, source, "3.2")
    assert name == "_Cryptography_cffi_a7462526x4a14b588"


def test_implicit_compile_explodes():
    # This uses a random comment to make sure each test gets its own hash
    random_comment = binascii.hexlify(os.urandom(24))
    ffi = utils.build_ffi("/* %s */" % random_comment, "")

    with pytest.raises(RuntimeError):
        ffi.verifier.load_library()
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-20 06:43:14 +0000
0->map[i].addr = e; e820->map[i].size = re - e; } } return 1; } unsigned long __init init_e820( const char *str, struct e820entry *raw, int *raw_nr) { machine_specific_memory_setup(raw, raw_nr); printk("%s RAM map:\n", str); print_e820_memory_map(e820.map, e820.nr_map); return find_max_pfn(); }