Closed
Description
Description
#include <stdio.h>
#include <unistd.h>
#include <syscall.h>
#include <sys/wait.h>
int main(int argc, char *argv[]) {
printf("p getpid()=%d gettid()=%d\n", getpid(), gettid());
int pid = fork();
if (pid == 0) {
printf("getpid()=%d gettid()=%d NR_getpid=%ld NR_gettid=%ld\n", getpid(), gettid(),
syscall(__NR_getpid), syscall(__NR_gettid));
} else if (pid > 0) {
waitpid(pid, nullptr, 0);
}
return 0;
}release build and exec
p getpid()=22023 gettid()=22023
getpid()=22024 gettid()=22023 NR_getpid=22024 NR_gettid=22024
decompile
__int64 sub_888()
{
unsigned int v0; // w20
unsigned int v1; // w19
int v2; // w0
unsigned int v3; // w20
__int64 v4; // x21
__int64 v5; // x0
v0 = getpid();
v1 = gettid();
printf("p getpid()=%d gettid()=%d\n", v0, v1);
v2 = fork();
if ( v2 )
{
if ( v2 >= 1 )
waitpid(v2, 0LL, 0);
}
else
{
v3 = getpid();
v4 = syscall(172LL);
v5 = syscall(178LL);
printf("getpid()=%d gettid()=%d NR_getpid=%ld NR_gettid=%ld\n", v3, v1, v4, v5);
}
return 0LL;
}Affected versions
r27
Canary version
No response
Host OS
Windows
Host OS version
Windows10
Affected ABIs
arm64-v8a
Build system
ndk-build
Other build system
No response
minSdkVersion
23
Device API level
34