Merge pull request #24499 from akien-mga/android-thirdparty

Android: Better identify thirdparty C/C++ code
This commit is contained in:
Rémi Verschelde 2018-12-20 19:12:58 +01:00 committed by GitHub
commit 2709113c83
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GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 661 additions and 335 deletions

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@ -55,31 +55,16 @@ Comment: Godot Engine logo
Copyright: 2017, Andrea Calabró
License: CC-BY-3.0
Files: ./platform/android/android_native_app_glue.c
./platform/android/android_native_app_glue.h
./platform/android/java/aidl/com/android/vending/billing/IInAppBillingService.aidl
Files: ./platform/android/java/aidl/com/android/vending/billing/IInAppBillingService.aidl
./platform/android/java/res/layout/status_bar_ongoing_event_progress_bar.xml
./platform/android/java/src/com/android/vending/licensing/*
./platform/android/java/src/com/google/android/vending/expansion/downloader/*
./platform/android/java/src/com/google/android/vending/licensing/*
./platform/android/java/src/org/godotengine/godot/input/InputManagerCompat.java
./platform/android/java/src/org/godotengine/godot/input/InputManagerV16.java
./platform/android/java/src/org/godotengine/godot/input/InputManagerV9.java
Comment: The Android Open Source Project
Copyright: 2008-2013, The Android Open Source Project
License: Apache-2.0
Files: ./platform/android/cpu-features.c
./platform/android/cpu-features.h
Comment: The Android Open Source Project
Copyright: 2010, The Android Open Source Project
License: BSD-2-clause
Files: ./platform/android/ifaddrs_android.cpp
./platform/android/ifaddrs_android.h
Comment: The Android Open Source Project
Copyright: 2012-2013, Google Inc.
License: BSD-3-clause
Files: ./platform/android/java/src/com/android/vending/licensing/util/Base64.java
./platform/android/java/src/com/android/vending/licensing/util/Base64DecoderException.java
Comment: The Android Open Source Project
@ -225,6 +210,12 @@ Comment: The WebM Project
Copyright: 2010, The WebM Project authors.
License: BSD-3-clause
Files: ./thirdparty/libvpx/third_party/android/cpu-features.c
./thirdparty/libvpx/third_party/android/cpu-features.h
Comment: The Android Open Source Project
Copyright: 2010, The Android Open Source Project
License: BSD-2-clause
Files: ./thirdparty/libwebp/
Comment: WebP codec
Copyright: 2010, Google Inc.
@ -295,6 +286,12 @@ Comment: hq2x implementation
Copyright: 2016, Bruno Ribeiro
License: Apache-2.0
Files: ./thirdparty/misc/ifaddrs-android.cc
./thirdparty/misc/ifaddrs-android.h
Comment: libjingle
Copyright: 2012-2013, Google Inc.
License: BSD-3-clause
Files: ./thirdparty/misc/md5.cpp
./thirdparty/misc/md5.h
Comment: MD5 Message Digest Algorithm

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@ -55,10 +55,12 @@
#include <iphlpapi.h>
#endif // MINGW hack
#endif
#else
#else // UNIX
#include <netdb.h>
#ifdef ANDROID_ENABLED
#include "platform/android/ifaddrs_android.h"
// We could drop this file once we up our API level to 24,
// where the NDK's ifaddrs.h supports to needed getifaddrs.
#include "thirdparty/misc/ifaddrs-android.h"
#else
#ifdef __FreeBSD__
#include <sys/types.h>
@ -201,7 +203,7 @@ void IP_Unix::get_local_addresses(List<IP_Address> *r_addresses) const {
#endif
#else
#else // UNIX
void IP_Unix::get_local_addresses(List<IP_Address> *r_addresses) const {

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@ -379,6 +379,9 @@ if webm_cpu_x86:
env_libvpx.add_source_files(env.modules_sources, libvpx_sources_x86_64asm)
elif webm_cpu_arm:
env_libvpx.add_source_files(env.modules_sources, libvpx_sources_arm)
if env["platform"] == 'android':
env_libvpx.Append(CPPPATH=[libvpx_dir + "third_party/android"])
env_libvpx.add_source_files(env.modules_sources, [libvpx_dir + "third_party/android/cpu-features.c"])
env_libvpx_neon = env_libvpx.Clone()
if env["platform"] == 'android' and env["android_arch"] == 'armv6':

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@ -21,11 +21,6 @@ android_files = [
# 'power_android.cpp'
]
thirdparty_files = [
'ifaddrs_android.cpp',
'cpu-features.c',
]
env_android = env.Clone()
if env['target'] == "profile":
env_android.Append(CPPFLAGS=['-DPROFILER_ENABLED'])
@ -36,14 +31,10 @@ for x in android_files:
env_thirdparty = env_android.Clone()
env_thirdparty.disable_warnings()
for x in thirdparty_files:
android_objects.append(env_thirdparty.SharedObject(x))
prog = None
android_objects.append(env_thirdparty.SharedObject('#thirdparty/misc/ifaddrs-android.cc'))
abspath = env.Dir(".").abspath
with open_utf8(abspath + "/build.gradle.template", "r") as gradle_basein:
gradle_text = gradle_basein.read()

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@ -1,230 +0,0 @@
/*
* libjingle
* Copyright 2012, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ifaddrs_android.h"
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/utsname.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <net/if.h>
#include <unistd.h>
#include <errno.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
struct netlinkrequest {
nlmsghdr header;
ifaddrmsg msg;
};
namespace {
const int kMaxReadSize = 4096;
}
static int set_ifname(struct ifaddrs* ifaddr, int interface) {
char buf[IFNAMSIZ] = {0};
char* name = if_indextoname(interface, buf);
if (name == NULL) {
return -1;
}
ifaddr->ifa_name = new char[strlen(name) + 1];
strncpy(ifaddr->ifa_name, name, strlen(name) + 1);
return 0;
}
static int set_flags(struct ifaddrs* ifaddr) {
int fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd == -1) {
return -1;
}
ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, ifaddr->ifa_name, IFNAMSIZ - 1);
int rc = ioctl(fd, SIOCGIFFLAGS, &ifr);
close(fd);
if (rc == -1) {
return -1;
}
ifaddr->ifa_flags = ifr.ifr_flags;
return 0;
}
static int set_addresses(struct ifaddrs* ifaddr, ifaddrmsg* msg, void* data,
size_t len) {
if (msg->ifa_family == AF_INET) {
sockaddr_in* sa = new sockaddr_in;
sa->sin_family = AF_INET;
memcpy(&sa->sin_addr, data, len);
ifaddr->ifa_addr = reinterpret_cast<sockaddr*>(sa);
} else if (msg->ifa_family == AF_INET6) {
sockaddr_in6* sa = new sockaddr_in6;
sa->sin6_family = AF_INET6;
sa->sin6_scope_id = msg->ifa_index;
memcpy(&sa->sin6_addr, data, len);
ifaddr->ifa_addr = reinterpret_cast<sockaddr*>(sa);
} else {
return -1;
}
return 0;
}
static int make_prefixes(struct ifaddrs* ifaddr, int family, int prefixlen) {
char* prefix = NULL;
if (family == AF_INET) {
sockaddr_in* mask = new sockaddr_in;
mask->sin_family = AF_INET;
memset(&mask->sin_addr, 0, sizeof(in_addr));
ifaddr->ifa_netmask = reinterpret_cast<sockaddr*>(mask);
if (prefixlen > 32) {
prefixlen = 32;
}
prefix = reinterpret_cast<char*>(&mask->sin_addr);
} else if (family == AF_INET6) {
sockaddr_in6* mask = new sockaddr_in6;
mask->sin6_family = AF_INET6;
memset(&mask->sin6_addr, 0, sizeof(in6_addr));
ifaddr->ifa_netmask = reinterpret_cast<sockaddr*>(mask);
if (prefixlen > 128) {
prefixlen = 128;
}
prefix = reinterpret_cast<char*>(&mask->sin6_addr);
} else {
return -1;
}
for (int i = 0; i < (prefixlen / 8); i++) {
*prefix++ = 0xFF;
}
char remainder = 0xff;
remainder <<= (8 - prefixlen % 8);
*prefix = remainder;
return 0;
}
static int populate_ifaddrs(struct ifaddrs* ifaddr, ifaddrmsg* msg, void* bytes,
size_t len) {
if (set_ifname(ifaddr, msg->ifa_index) != 0) {
return -1;
}
if (set_flags(ifaddr) != 0) {
return -1;
}
if (set_addresses(ifaddr, msg, bytes, len) != 0) {
return -1;
}
if (make_prefixes(ifaddr, msg->ifa_family, msg->ifa_prefixlen) != 0) {
return -1;
}
return 0;
}
int getifaddrs(struct ifaddrs** result) {
int fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (fd < 0) {
return -1;
}
netlinkrequest ifaddr_request;
memset(&ifaddr_request, 0, sizeof(ifaddr_request));
ifaddr_request.header.nlmsg_flags = NLM_F_ROOT | NLM_F_REQUEST;
ifaddr_request.header.nlmsg_type = RTM_GETADDR;
ifaddr_request.header.nlmsg_len = NLMSG_LENGTH(sizeof(ifaddrmsg));
ssize_t count = send(fd, &ifaddr_request, ifaddr_request.header.nlmsg_len, 0);
if (static_cast<size_t>(count) != ifaddr_request.header.nlmsg_len) {
close(fd);
return -1;
}
struct ifaddrs* start = NULL;
struct ifaddrs* current = NULL;
char buf[kMaxReadSize];
ssize_t amount_read = recv(fd, &buf, kMaxReadSize, 0);
while (amount_read > 0) {
nlmsghdr* header = reinterpret_cast<nlmsghdr*>(&buf[0]);
size_t header_size = static_cast<size_t>(amount_read);
for ( ; NLMSG_OK(header, header_size);
header = NLMSG_NEXT(header, header_size)) {
switch (header->nlmsg_type) {
case NLMSG_DONE:
// Success. Return.
*result = start;
close(fd);
return 0;
case NLMSG_ERROR:
close(fd);
freeifaddrs(start);
return -1;
case RTM_NEWADDR: {
ifaddrmsg* address_msg =
reinterpret_cast<ifaddrmsg*>(NLMSG_DATA(header));
rtattr* rta = IFA_RTA(address_msg);
ssize_t payload_len = IFA_PAYLOAD(header);
while (RTA_OK(rta, payload_len)) {
if (rta->rta_type == IFA_ADDRESS) {
int family = address_msg->ifa_family;
if (family == AF_INET || family == AF_INET6) {
ifaddrs* newest = new ifaddrs;
memset(newest, 0, sizeof(ifaddrs));
if (current) {
current->ifa_next = newest;
} else {
start = newest;
}
if (populate_ifaddrs(newest, address_msg, RTA_DATA(rta),
RTA_PAYLOAD(rta)) != 0) {
freeifaddrs(start);
*result = NULL;
return -1;
}
current = newest;
}
}
rta = RTA_NEXT(rta, payload_len);
}
break;
}
}
}
amount_read = recv(fd, &buf, kMaxReadSize, 0);
}
close(fd);
freeifaddrs(start);
return -1;
}
void freeifaddrs(struct ifaddrs* addrs) {
struct ifaddrs* last = NULL;
struct ifaddrs* cursor = addrs;
while (cursor) {
delete[] cursor->ifa_name;
delete cursor->ifa_addr;
delete cursor->ifa_netmask;
last = cursor;
cursor = cursor->ifa_next;
delete last;
}
}

19
thirdparty/README.md vendored
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@ -229,6 +229,9 @@ TODO.
Important: File `libvpx/vpx_dsp/x86/vpx_subpixel_8t_intrin_avx2.c` has
Godot-made change marked with `// -- GODOT --` comments.
The files `libvpx/third_party/android/cpu-features.{c,h}` were copied
from the Android NDK r18.
## libwebp
@ -337,6 +340,10 @@ Collection of single-file libraries used in Godot components.
* Upstream: http://www.efgh.com/software/md5.htm
* Version: TBD, might not be latest from above URL
* License: RSA Message-Digest License
- `open-simplex-noise.{c,h}`
* Upstream: https://github.com/smcameron/open-simplex-noise-in-c
* Version: git (0d555e7, 2015)
* License: Unlicense
- `pcg.{cpp,h}`
* Upstream: http://www.pcg-random.org
* Version: minimal C implementation, http://www.pcg-random.org/download.html
@ -354,11 +361,6 @@ Collection of single-file libraries used in Godot components.
* Upstream: https://github.com/ivanfratric/polypartition (`src/polypartition.cpp`)
* Version: TBD, class was renamed
* License: MIT
- `open-simplex-noise.{c,h}`
* Upstream: https://github.com/smcameron/open-simplex-noise-in-c
* Version: git (0d555e7, 2015)
* License: Unlicense
### modules
@ -371,6 +373,13 @@ Collection of single-file libraries used in Godot components.
* Version: ?
* License: BSD
### platform
- `ifaddrs-android.{cc,h}`
* Upstream: https://chromium.googlesource.com/external/webrtc/stable/talk/+/master/base/ifaddrs-android.h
* Version: 5976650 (2013)
* License: BSD-3-Clause
### scene
- `easing_equations.cpp`

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@ -27,6 +27,10 @@
*/
/* ChangeLog for this library:
*
* NDK r10e?: Add MIPS MSA feature.
*
* NDK r10: Support for 64-bit CPUs (Intel, ARM & MIPS).
*
* NDK r8d: Add android_setCpu().
*
@ -57,20 +61,17 @@
* NDK r4: Initial release
*/
#if defined(__le32__)
// When users enter this, we should only provide interface and
// libportable will give the implementations.
#else // !__le32__
#include <sys/system_properties.h>
#include <pthread.h>
#include "cpu-features.h"
#include <dlfcn.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <sys/system_properties.h>
#include <unistd.h>
static pthread_once_t g_once;
static int g_inited;
@ -84,14 +85,6 @@ static uint32_t g_cpuIdArm;
static const int android_cpufeatures_debug = 0;
#ifdef __arm__
# define DEFAULT_CPU_FAMILY ANDROID_CPU_FAMILY_ARM
#elif defined __i386__
# define DEFAULT_CPU_FAMILY ANDROID_CPU_FAMILY_X86
#else
# define DEFAULT_CPU_FAMILY ANDROID_CPU_FAMILY_UNKNOWN
#endif
#define D(...) \
do { \
if (android_cpufeatures_debug) { \
@ -118,6 +111,25 @@ static __inline__ void x86_cpuid(int func, int values[4])
values[2] = c;
values[3] = d;
}
#elif defined(__x86_64__)
static __inline__ void x86_cpuid(int func, int values[4])
{
int64_t a, b, c, d;
/* We need to preserve ebx since we're compiling PIC code */
/* this means we can't use "=b" for the second output register */
__asm__ __volatile__ ( \
"push %%rbx\n"
"cpuid\n" \
"mov %%rbx, %1\n"
"pop %%rbx\n"
: "=a" (a), "=r" (b), "=c" (c), "=d" (d) \
: "a" (func) \
);
values[0] = a;
values[1] = b;
values[2] = c;
values[3] = d;
}
#endif
/* Get the size of a file by reading it until the end. This is needed
@ -127,6 +139,7 @@ static __inline__ void x86_cpuid(int func, int values[4])
static int
get_file_size(const char* pathname)
{
int fd, result = 0;
char buffer[256];
@ -187,6 +200,7 @@ read_file(const char* pathname, char* buffer, size_t buffsize)
return count;
}
#ifdef __arm__
/* Extract the content of a the first occurence of a given field in
* the content of /proc/cpuinfo and return it as a heap-allocated
* string that must be freed by the caller.
@ -199,7 +213,7 @@ extract_cpuinfo_field(const char* buffer, int buflen, const char* field)
int fieldlen = strlen(field);
const char* bufend = buffer + buflen;
char* result = NULL;
int len, ignore;
int len;
const char *p, *q;
/* Look for first field occurence, and ensures it starts the line. */
@ -272,6 +286,7 @@ has_list_item(const char* list, const char* item)
}
return 0;
}
#endif /* __arm__ */
/* Parse a number starting from 'input', but not going further
* than 'limit'. Return the value into '*result'.
@ -316,11 +331,13 @@ parse_decimal(const char* input, const char* limit, int* result)
return parse_number(input, limit, 10, result);
}
#ifdef __arm__
static const char*
parse_hexadecimal(const char* input, const char* limit, int* result)
{
return parse_number(input, limit, 16, result);
}
#endif /* __arm__ */
/* This small data type is used to represent a CPU list / mask, as read
* from sysfs on Linux. See http://www.kernel.org/doc/Documentation/cputopology.txt
@ -432,6 +449,18 @@ cpulist_read_from(CpuList* list, const char* filename)
cpulist_parse(list, file, filelen);
}
#if defined(__aarch64__)
// see <uapi/asm/hwcap.h> kernel header
#define HWCAP_FP (1 << 0)
#define HWCAP_ASIMD (1 << 1)
#define HWCAP_AES (1 << 3)
#define HWCAP_PMULL (1 << 4)
#define HWCAP_SHA1 (1 << 5)
#define HWCAP_SHA2 (1 << 6)
#define HWCAP_CRC32 (1 << 7)
#endif
#if defined(__arm__)
// See <asm/hwcap.h> kernel header.
#define HWCAP_VFP (1 << 6)
@ -443,27 +472,84 @@ cpulist_read_from(CpuList* list, const char* filename)
#define HWCAP_IDIVA (1 << 17)
#define HWCAP_IDIVT (1 << 18)
// see <uapi/asm/hwcap.h> kernel header
#define HWCAP2_AES (1 << 0)
#define HWCAP2_PMULL (1 << 1)
#define HWCAP2_SHA1 (1 << 2)
#define HWCAP2_SHA2 (1 << 3)
#define HWCAP2_CRC32 (1 << 4)
// This is the list of 32-bit ARMv7 optional features that are _always_
// supported by ARMv8 CPUs, as mandated by the ARM Architecture Reference
// Manual.
#define HWCAP_SET_FOR_ARMV8 \
( HWCAP_VFP | \
HWCAP_NEON | \
HWCAP_VFPv3 | \
HWCAP_VFPv4 | \
HWCAP_IDIVA | \
HWCAP_IDIVT )
#endif
#if defined(__mips__)
// see <uapi/asm/hwcap.h> kernel header
#define HWCAP_MIPS_R6 (1 << 0)
#define HWCAP_MIPS_MSA (1 << 1)
#endif
#if defined(__arm__) || defined(__aarch64__) || defined(__mips__)
#define AT_HWCAP 16
#define AT_HWCAP2 26
// Probe the system's C library for a 'getauxval' function and call it if
// it exits, or return 0 for failure. This function is available since API
// level 20.
//
// This code does *NOT* check for '__ANDROID_API__ >= 20' to support the
// edge case where some NDK developers use headers for a platform that is
// newer than the one really targetted by their application.
// This is typically done to use newer native APIs only when running on more
// recent Android versions, and requires careful symbol management.
//
// Note that getauxval() can't really be re-implemented here, because
// its implementation does not parse /proc/self/auxv. Instead it depends
// on values that are passed by the kernel at process-init time to the
// C runtime initialization layer.
static uint32_t
get_elf_hwcap_from_getauxval(int hwcap_type) {
typedef unsigned long getauxval_func_t(unsigned long);
dlerror();
void* libc_handle = dlopen("libc.so", RTLD_NOW);
if (!libc_handle) {
D("Could not dlopen() C library: %s\n", dlerror());
return 0;
}
uint32_t ret = 0;
getauxval_func_t* func = (getauxval_func_t*)
dlsym(libc_handle, "getauxval");
if (!func) {
D("Could not find getauxval() in C library\n");
} else {
// Note: getauxval() returns 0 on failure. Doesn't touch errno.
ret = (uint32_t)(*func)(hwcap_type);
}
dlclose(libc_handle);
return ret;
}
#endif
#if defined(__arm__)
/* Compute the ELF HWCAP flags.
*/
// Parse /proc/self/auxv to extract the ELF HW capabilities bitmap for the
// current CPU. Note that this file is not accessible from regular
// application processes on some Android platform releases.
// On success, return new ELF hwcaps, or 0 on failure.
static uint32_t
get_elf_hwcap(const char* cpuinfo, int cpuinfo_len)
{
/* IMPORTANT:
* Accessing /proc/self/auxv doesn't work anymore on all
* platform versions. More specifically, when running inside
* a regular application process, most of /proc/self/ will be
* non-readable, including /proc/self/auxv. This doesn't
* happen however if the application is debuggable, or when
* running under the "shell" UID, which is why this was not
* detected appropriately.
*/
#if 0
uint32_t result = 0;
get_elf_hwcap_from_proc_self_auxv(void) {
const char filepath[] = "/proc/self/auxv";
int fd = open(filepath, O_RDONLY);
int fd = TEMP_FAILURE_RETRY(open(filepath, O_RDONLY));
if (fd < 0) {
D("Could not open %s: %s\n", filepath, strerror(errno));
return 0;
@ -471,11 +557,10 @@ get_elf_hwcap(const char* cpuinfo, int cpuinfo_len)
struct { uint32_t tag; uint32_t value; } entry;
uint32_t result = 0;
for (;;) {
int ret = read(fd, (char*)&entry, sizeof entry);
int ret = TEMP_FAILURE_RETRY(read(fd, (char*)&entry, sizeof entry));
if (ret < 0) {
if (errno == EINTR)
continue;
D("Error while reading %s: %s\n", filepath, strerror(errno));
break;
}
@ -489,12 +574,33 @@ get_elf_hwcap(const char* cpuinfo, int cpuinfo_len)
}
close(fd);
return result;
#else
// Recreate ELF hwcaps by parsing /proc/cpuinfo Features tag.
}
/* Compute the ELF HWCAP flags from the content of /proc/cpuinfo.
* This works by parsing the 'Features' line, which lists which optional
* features the device's CPU supports, on top of its reference
* architecture.
*/
static uint32_t
get_elf_hwcap_from_proc_cpuinfo(const char* cpuinfo, int cpuinfo_len) {
uint32_t hwcaps = 0;
long architecture = 0;
char* cpuArch = extract_cpuinfo_field(cpuinfo, cpuinfo_len, "CPU architecture");
if (cpuArch) {
architecture = strtol(cpuArch, NULL, 10);
free(cpuArch);
if (architecture >= 8L) {
// This is a 32-bit ARM binary running on a 64-bit ARM64 kernel.
// The 'Features' line only lists the optional features that the
// device's CPU supports, compared to its reference architecture
// which are of no use for this process.
D("Faking 32-bit ARM HWCaps on ARMv%ld CPU\n", architecture);
return HWCAP_SET_FOR_ARMV8;
}
}
char* cpuFeatures = extract_cpuinfo_field(cpuinfo, cpuinfo_len, "Features");
if (cpuFeatures != NULL) {
D("Found cpuFeatures = '%s'\n", cpuFeatures);
@ -520,7 +626,6 @@ get_elf_hwcap(const char* cpuinfo, int cpuinfo_len)
free(cpuFeatures);
}
return hwcaps;
#endif
}
#endif /* __arm__ */
@ -609,9 +714,6 @@ android_cpuInit(void)
#ifdef __arm__
{
char* features = NULL;
char* architecture = NULL;
/* Extract architecture from the "CPU Architecture" field.
* The list is well-known, unlike the the output of
* the 'Processor' field which can vary greatly.
@ -632,10 +734,7 @@ android_cpuInit(void)
/* read the initial decimal number, ignore the rest */
archNumber = strtol(cpuArch, &end, 10);
/* Here we assume that ARMv8 will be upwards compatible with v7
* in the future. Unfortunately, there is no 'Features' field to
* indicate that Thumb-2 is supported.
*/
/* Note that ARMv8 is upwards compatible with ARMv7. */
if (end > cpuArch && archNumber >= 7) {
hasARMv7 = 1;
}
@ -676,7 +775,19 @@ android_cpuInit(void)
}
/* Extract the list of CPU features from ELF hwcaps */
uint32_t hwcaps = get_elf_hwcap(cpuinfo, cpuinfo_len);
uint32_t hwcaps = 0;
hwcaps = get_elf_hwcap_from_getauxval(AT_HWCAP);
if (!hwcaps) {
D("Parsing /proc/self/auxv to extract ELF hwcaps!\n");
hwcaps = get_elf_hwcap_from_proc_self_auxv();
}
if (!hwcaps) {
// Parsing /proc/self/auxv will fail from regular application
// processes on some Android platform versions, when this happens
// parse proc/cpuinfo instead.
D("Parsing /proc/cpuinfo to extract ELF hwcaps!\n");
hwcaps = get_elf_hwcap_from_proc_cpuinfo(cpuinfo, cpuinfo_len);
}
if (hwcaps != 0) {
int has_vfp = (hwcaps & HWCAP_VFP);
@ -737,6 +848,27 @@ android_cpuInit(void)
g_cpuFeatures |= ANDROID_CPU_ARM_FEATURE_iWMMXt;
}
/* Extract the list of CPU features from ELF hwcaps2 */
uint32_t hwcaps2 = 0;
hwcaps2 = get_elf_hwcap_from_getauxval(AT_HWCAP2);
if (hwcaps2 != 0) {
int has_aes = (hwcaps2 & HWCAP2_AES);
int has_pmull = (hwcaps2 & HWCAP2_PMULL);
int has_sha1 = (hwcaps2 & HWCAP2_SHA1);
int has_sha2 = (hwcaps2 & HWCAP2_SHA2);
int has_crc32 = (hwcaps2 & HWCAP2_CRC32);
if (has_aes)
g_cpuFeatures |= ANDROID_CPU_ARM_FEATURE_AES;
if (has_pmull)
g_cpuFeatures |= ANDROID_CPU_ARM_FEATURE_PMULL;
if (has_sha1)
g_cpuFeatures |= ANDROID_CPU_ARM_FEATURE_SHA1;
if (has_sha2)
g_cpuFeatures |= ANDROID_CPU_ARM_FEATURE_SHA2;
if (has_crc32)
g_cpuFeatures |= ANDROID_CPU_ARM_FEATURE_CRC32;
}
/* Extract the cpuid value from various fields */
// The CPUID value is broken up in several entries in /proc/cpuinfo.
// This table is used to rebuild it from the entries.
@ -806,10 +938,64 @@ android_cpuInit(void)
g_cpuFeatures |= entry->or_flags;
}
// Special case: The emulator-specific Android 4.2 kernel fails
// to report support for the 32-bit ARM IDIV instruction.
// Technically, this is a feature of the virtual CPU implemented
// by the emulator. Note that it could also support Thumb IDIV
// in the future, and this will have to be slightly updated.
char* hardware = extract_cpuinfo_field(cpuinfo,
cpuinfo_len,
"Hardware");
if (hardware) {
if (!strcmp(hardware, "Goldfish") &&
g_cpuIdArm == 0x4100c080 &&
(g_cpuFamily & ANDROID_CPU_ARM_FEATURE_ARMv7) != 0) {
g_cpuFeatures |= ANDROID_CPU_ARM_FEATURE_IDIV_ARM;
}
free(hardware);
}
}
#endif /* __arm__ */
#ifdef __aarch64__
{
/* Extract the list of CPU features from ELF hwcaps */
uint32_t hwcaps = 0;
hwcaps = get_elf_hwcap_from_getauxval(AT_HWCAP);
if (hwcaps != 0) {
int has_fp = (hwcaps & HWCAP_FP);
int has_asimd = (hwcaps & HWCAP_ASIMD);
int has_aes = (hwcaps & HWCAP_AES);
int has_pmull = (hwcaps & HWCAP_PMULL);
int has_sha1 = (hwcaps & HWCAP_SHA1);
int has_sha2 = (hwcaps & HWCAP_SHA2);
int has_crc32 = (hwcaps & HWCAP_CRC32);
#ifdef __i386__
if(has_fp == 0) {
D("ERROR: Floating-point unit missing, but is required by Android on AArch64 CPUs\n");
}
if(has_asimd == 0) {
D("ERROR: ASIMD unit missing, but is required by Android on AArch64 CPUs\n");
}
if (has_fp)
g_cpuFeatures |= ANDROID_CPU_ARM64_FEATURE_FP;
if (has_asimd)
g_cpuFeatures |= ANDROID_CPU_ARM64_FEATURE_ASIMD;
if (has_aes)
g_cpuFeatures |= ANDROID_CPU_ARM64_FEATURE_AES;
if (has_pmull)
g_cpuFeatures |= ANDROID_CPU_ARM64_FEATURE_PMULL;
if (has_sha1)
g_cpuFeatures |= ANDROID_CPU_ARM64_FEATURE_SHA1;
if (has_sha2)
g_cpuFeatures |= ANDROID_CPU_ARM64_FEATURE_SHA2;
if (has_crc32)
g_cpuFeatures |= ANDROID_CPU_ARM64_FEATURE_CRC32;
}
}
#endif /* __aarch64__ */
#if defined(__i386__) || defined(__x86_64__)
int regs[4];
/* According to http://en.wikipedia.org/wiki/CPUID */
@ -829,10 +1015,50 @@ android_cpuInit(void)
if ((regs[2] & (1 << 23)) != 0) {
g_cpuFeatures |= ANDROID_CPU_X86_FEATURE_POPCNT;
}
if ((regs[2] & (1 << 19)) != 0) {
g_cpuFeatures |= ANDROID_CPU_X86_FEATURE_SSE4_1;
}
if ((regs[2] & (1 << 20)) != 0) {
g_cpuFeatures |= ANDROID_CPU_X86_FEATURE_SSE4_2;
}
if (vendorIsIntel && (regs[2] & (1 << 22)) != 0) {
g_cpuFeatures |= ANDROID_CPU_X86_FEATURE_MOVBE;
}
if ((regs[2] & (1 << 25)) != 0) {
g_cpuFeatures |= ANDROID_CPU_X86_FEATURE_AES_NI;
}
if ((regs[2] & (1 << 28)) != 0) {
g_cpuFeatures |= ANDROID_CPU_X86_FEATURE_AVX;
}
if ((regs[2] & (1 << 30)) != 0) {
g_cpuFeatures |= ANDROID_CPU_X86_FEATURE_RDRAND;
}
x86_cpuid(7, regs);
if ((regs[1] & (1 << 5)) != 0) {
g_cpuFeatures |= ANDROID_CPU_X86_FEATURE_AVX2;
}
if ((regs[1] & (1 << 29)) != 0) {
g_cpuFeatures |= ANDROID_CPU_X86_FEATURE_SHA_NI;
}
#endif
#if defined( __mips__)
{ /* MIPS and MIPS64 */
/* Extract the list of CPU features from ELF hwcaps */
uint32_t hwcaps = 0;
hwcaps = get_elf_hwcap_from_getauxval(AT_HWCAP);
if (hwcaps != 0) {
int has_r6 = (hwcaps & HWCAP_MIPS_R6);
int has_msa = (hwcaps & HWCAP_MIPS_MSA);
if (has_r6)
g_cpuFeatures |= ANDROID_CPU_MIPS_FEATURE_R6;
if (has_msa)
g_cpuFeatures |= ANDROID_CPU_MIPS_FEATURE_MSA;
}
}
#endif /* __mips__ */
free(cpuinfo);
}
@ -1085,5 +1311,3 @@ android_setCpuArm(int cpu_count, uint64_t cpu_features, uint32_t cpu_id)
* ARCH_NEON_FP16 (+EXT_FP16)
*
*/
#endif // defined(__le32__)

View File

@ -33,6 +33,9 @@
__BEGIN_DECLS
/* A list of valid values returned by android_getCpuFamily().
* They describe the CPU Architecture of the current process.
*/
typedef enum {
ANDROID_CPU_FAMILY_UNKNOWN = 0,
ANDROID_CPU_FAMILY_ARM,
@ -46,11 +49,24 @@ typedef enum {
} AndroidCpuFamily;
/* Return family of the device's CPU */
/* Return the CPU family of the current process.
*
* Note that this matches the bitness of the current process. I.e. when
* running a 32-bit binary on a 64-bit capable CPU, this will return the
* 32-bit CPU family value.
*/
extern AndroidCpuFamily android_getCpuFamily(void);
/* The list of feature flags for ARM CPUs that can be recognized by the
* library. Value details are:
/* Return a bitmap describing a set of optional CPU features that are
* supported by the current device's CPU. The exact bit-flags returned
* depend on the value returned by android_getCpuFamily(). See the
* documentation for the ANDROID_CPU_*_FEATURE_* flags below for details.
*/
extern uint64_t android_getCpuFeatures(void);
/* The list of feature flags for ANDROID_CPU_FAMILY_ARM that can be
* recognized by the library (see note below for 64-bit ARM). Value details
* are:
*
* VFPv2:
* CPU supports the VFPv2 instruction set. Many, but not all, ARMv6 CPUs
@ -106,6 +122,27 @@ extern AndroidCpuFamily android_getCpuFamily(void);
* ARM CPU. This is only available on a few XScale-based CPU designs
* sold by Marvell. Pretty rare in practice.
*
* AES:
* CPU supports AES instructions. These instructions are only
* available for 32-bit applications running on ARMv8 CPU.
*
* CRC32:
* CPU supports CRC32 instructions. These instructions are only
* available for 32-bit applications running on ARMv8 CPU.
*
* SHA2:
* CPU supports SHA2 instructions. These instructions are only
* available for 32-bit applications running on ARMv8 CPU.
*
* SHA1:
* CPU supports SHA1 instructions. These instructions are only
* available for 32-bit applications running on ARMv8 CPU.
*
* PMULL:
* CPU supports 64-bit PMULL and PMULL2 instructions. These
* instructions are only available for 32-bit applications
* running on ARMv8 CPU.
*
* If you want to tell the compiler to generate code that targets one of
* the feature set above, you should probably use one of the following
* flags (for more details, see technical note at the end of this file):
@ -153,6 +190,13 @@ extern AndroidCpuFamily android_getCpuFamily(void);
*
* -mcpu=iwmmxt
* Allows the use of iWMMXt instrinsics with GCC.
*
* IMPORTANT NOTE: These flags should only be tested when
* android_getCpuFamily() returns ANDROID_CPU_FAMILY_ARM, i.e. this is a
* 32-bit process.
*
* When running a 64-bit ARM process on an ARMv8 CPU,
* android_getCpuFeatures() will return a different set of bitflags
*/
enum {
ANDROID_CPU_ARM_FEATURE_ARMv7 = (1 << 0),
@ -167,16 +211,81 @@ enum {
ANDROID_CPU_ARM_FEATURE_IDIV_ARM = (1 << 9),
ANDROID_CPU_ARM_FEATURE_IDIV_THUMB2 = (1 << 10),
ANDROID_CPU_ARM_FEATURE_iWMMXt = (1 << 11),
ANDROID_CPU_ARM_FEATURE_AES = (1 << 12),
ANDROID_CPU_ARM_FEATURE_PMULL = (1 << 13),
ANDROID_CPU_ARM_FEATURE_SHA1 = (1 << 14),
ANDROID_CPU_ARM_FEATURE_SHA2 = (1 << 15),
ANDROID_CPU_ARM_FEATURE_CRC32 = (1 << 16),
};
/* The bit flags corresponding to the output of android_getCpuFeatures()
* when android_getCpuFamily() returns ANDROID_CPU_FAMILY_ARM64. Value details
* are:
*
* FP:
* CPU has Floating-point unit.
*
* ASIMD:
* CPU has Advanced SIMD unit.
*
* AES:
* CPU supports AES instructions.
*
* CRC32:
* CPU supports CRC32 instructions.
*
* SHA2:
* CPU supports SHA2 instructions.
*
* SHA1:
* CPU supports SHA1 instructions.
*
* PMULL:
* CPU supports 64-bit PMULL and PMULL2 instructions.
*/
enum {
ANDROID_CPU_ARM64_FEATURE_FP = (1 << 0),
ANDROID_CPU_ARM64_FEATURE_ASIMD = (1 << 1),
ANDROID_CPU_ARM64_FEATURE_AES = (1 << 2),
ANDROID_CPU_ARM64_FEATURE_PMULL = (1 << 3),
ANDROID_CPU_ARM64_FEATURE_SHA1 = (1 << 4),
ANDROID_CPU_ARM64_FEATURE_SHA2 = (1 << 5),
ANDROID_CPU_ARM64_FEATURE_CRC32 = (1 << 6),
};
/* The bit flags corresponding to the output of android_getCpuFeatures()
* when android_getCpuFamily() returns ANDROID_CPU_FAMILY_X86 or
* ANDROID_CPU_FAMILY_X86_64.
*/
enum {
ANDROID_CPU_X86_FEATURE_SSSE3 = (1 << 0),
ANDROID_CPU_X86_FEATURE_POPCNT = (1 << 1),
ANDROID_CPU_X86_FEATURE_MOVBE = (1 << 2),
ANDROID_CPU_X86_FEATURE_SSE4_1 = (1 << 3),
ANDROID_CPU_X86_FEATURE_SSE4_2 = (1 << 4),
ANDROID_CPU_X86_FEATURE_AES_NI = (1 << 5),
ANDROID_CPU_X86_FEATURE_AVX = (1 << 6),
ANDROID_CPU_X86_FEATURE_RDRAND = (1 << 7),
ANDROID_CPU_X86_FEATURE_AVX2 = (1 << 8),
ANDROID_CPU_X86_FEATURE_SHA_NI = (1 << 9),
};
/* The bit flags corresponding to the output of android_getCpuFeatures()
* when android_getCpuFamily() returns ANDROID_CPU_FAMILY_MIPS
* or ANDROID_CPU_FAMILY_MIPS64. Values are:
*
* R6:
* CPU executes MIPS Release 6 instructions natively, and
* supports obsoleted R1..R5 instructions only via kernel traps.
*
* MSA:
* CPU supports Mips SIMD Architecture instructions.
*/
enum {
ANDROID_CPU_MIPS_FEATURE_R6 = (1 << 0),
ANDROID_CPU_MIPS_FEATURE_MSA = (1 << 1),
};
extern uint64_t android_getCpuFeatures(void);
#define android_getCpuFeaturesExt android_getCpuFeatures
/* Return the number of CPU cores detected on this device. */
extern int android_getCpuCount(void);

221
thirdparty/misc/ifaddrs-android.cc vendored Normal file
View File

@ -0,0 +1,221 @@
/*
* libjingle
* Copyright 2012, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ifaddrs-android.h"
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/utsname.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <net/if.h>
#include <unistd.h>
#include <errno.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
struct netlinkrequest {
nlmsghdr header;
ifaddrmsg msg;
};
namespace {
const int kMaxReadSize = 4096;
};
int set_ifname(struct ifaddrs* ifaddr, int interface) {
char buf[IFNAMSIZ] = {0};
char* name = if_indextoname(interface, buf);
if (name == NULL) {
return -1;
}
ifaddr->ifa_name = new char[strlen(name) + 1];
strncpy(ifaddr->ifa_name, name, strlen(name) + 1);
return 0;
}
int set_flags(struct ifaddrs* ifaddr) {
int fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd == -1) {
return -1;
}
ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, ifaddr->ifa_name, IFNAMSIZ - 1);
int rc = ioctl(fd, SIOCGIFFLAGS, &ifr);
close(fd);
if (rc == -1) {
return -1;
}
ifaddr->ifa_flags = ifr.ifr_flags;
return 0;
}
int set_addresses(struct ifaddrs* ifaddr, ifaddrmsg* msg, void* data,
size_t len) {
if (msg->ifa_family == AF_INET) {
sockaddr_in* sa = new sockaddr_in;
sa->sin_family = AF_INET;
memcpy(&sa->sin_addr, data, len);
ifaddr->ifa_addr = reinterpret_cast<sockaddr*>(sa);
} else if (msg->ifa_family == AF_INET6) {
sockaddr_in6* sa = new sockaddr_in6;
sa->sin6_family = AF_INET6;
sa->sin6_scope_id = msg->ifa_index;
memcpy(&sa->sin6_addr, data, len);
ifaddr->ifa_addr = reinterpret_cast<sockaddr*>(sa);
} else {
return -1;
}
return 0;
}
int make_prefixes(struct ifaddrs* ifaddr, int family, int prefixlen) {
char* prefix = NULL;
if (family == AF_INET) {
sockaddr_in* mask = new sockaddr_in;
mask->sin_family = AF_INET;
memset(&mask->sin_addr, 0, sizeof(in_addr));
ifaddr->ifa_netmask = reinterpret_cast<sockaddr*>(mask);
if (prefixlen > 32) {
prefixlen = 32;
}
prefix = reinterpret_cast<char*>(&mask->sin_addr);
} else if (family == AF_INET6) {
sockaddr_in6* mask = new sockaddr_in6;
mask->sin6_family = AF_INET6;
memset(&mask->sin6_addr, 0, sizeof(in6_addr));
ifaddr->ifa_netmask = reinterpret_cast<sockaddr*>(mask);
if (prefixlen > 128) {
prefixlen = 128;
}
prefix = reinterpret_cast<char*>(&mask->sin6_addr);
} else {
return -1;
}
for (int i = 0; i < (prefixlen / 8); i++) {
*prefix++ = 0xFF;
}
char remainder = 0xff;
remainder <<= (8 - prefixlen % 8);
*prefix = remainder;
return 0;
}
int populate_ifaddrs(struct ifaddrs* ifaddr, ifaddrmsg* msg, void* bytes,
size_t len) {
if (set_ifname(ifaddr, msg->ifa_index) != 0) {
return -1;
}
if (set_flags(ifaddr) != 0) {
return -1;
}
if (set_addresses(ifaddr, msg, bytes, len) != 0) {
return -1;
}
if (make_prefixes(ifaddr, msg->ifa_family, msg->ifa_prefixlen) != 0) {
return -1;
}
return 0;
}
int getifaddrs(struct ifaddrs** result) {
int fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (fd < 0) {
return -1;
}
netlinkrequest ifaddr_request;
memset(&ifaddr_request, 0, sizeof(ifaddr_request));
ifaddr_request.header.nlmsg_flags = NLM_F_ROOT | NLM_F_REQUEST;
ifaddr_request.header.nlmsg_type = RTM_GETADDR;
ifaddr_request.header.nlmsg_len = NLMSG_LENGTH(sizeof(ifaddrmsg));
ssize_t count = send(fd, &ifaddr_request, ifaddr_request.header.nlmsg_len, 0);
if (static_cast<size_t>(count) != ifaddr_request.header.nlmsg_len) {
close(fd);
return -1;
}
struct ifaddrs* start = NULL;
struct ifaddrs* current = NULL;
char buf[kMaxReadSize];
ssize_t amount_read = recv(fd, &buf, kMaxReadSize, 0);
while (amount_read > 0) {
nlmsghdr* header = reinterpret_cast<nlmsghdr*>(&buf[0]);
size_t header_size = static_cast<size_t>(amount_read);
for ( ; NLMSG_OK(header, header_size);
header = NLMSG_NEXT(header, header_size)) {
switch (header->nlmsg_type) {
case NLMSG_DONE:
// Success. Return.
*result = start;
close(fd);
return 0;
case NLMSG_ERROR:
close(fd);
freeifaddrs(start);
return -1;
case RTM_NEWADDR: {
ifaddrmsg* address_msg =
reinterpret_cast<ifaddrmsg*>(NLMSG_DATA(header));
rtattr* rta = IFA_RTA(address_msg);
ssize_t payload_len = IFA_PAYLOAD(header);
while (RTA_OK(rta, payload_len)) {
if (rta->rta_type == IFA_ADDRESS) {
int family = address_msg->ifa_family;
if (family == AF_INET || family == AF_INET6) {
ifaddrs* newest = new ifaddrs;
memset(newest, 0, sizeof(ifaddrs));
if (current) {
current->ifa_next = newest;
} else {
start = newest;
}
if (populate_ifaddrs(newest, address_msg, RTA_DATA(rta),
RTA_PAYLOAD(rta)) != 0) {
freeifaddrs(start);
*result = NULL;
return -1;
}
current = newest;
}
}
rta = RTA_NEXT(rta, payload_len);
}
break;
}
}
}
amount_read = recv(fd, &buf, kMaxReadSize, 0);
}
close(fd);
freeifaddrs(start);
return -1;
}
void freeifaddrs(struct ifaddrs* addrs) {
struct ifaddrs* last = NULL;
struct ifaddrs* cursor = addrs;
while (cursor) {
delete[] cursor->ifa_name;
delete cursor->ifa_addr;
delete cursor->ifa_netmask;
last = cursor;
cursor = cursor->ifa_next;
delete last;
}
}