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Implement IsDebuggerPresent on BSDs (#7880)

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Jan Beich 2020-03-28 01:57:41 +00:00 committed by GitHub
parent 58492ef92d
commit 777f0a7c82
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1 changed files with 54 additions and 0 deletions
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54
Utilities/Thread.cpp
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@ -40,6 +40,37 @@
#include <sys/timerfd.h>
#endif
#if defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
# include <sys/sysctl.h>
# include <unistd.h>
# if defined(__DragonFly__) || defined(__FreeBSD__)
# include <sys/user.h>
# endif
# if defined(__OpenBSD__)
# include <sys/param.h>
# include <sys/proc.h>
# endif
# if defined(__NetBSD__)
# undef KERN_PROC
# define KERN_PROC KERN_PROC2
# define kinfo_proc kinfo_proc2
# endif
# if defined(__APPLE__)
# define KP_FLAGS kp_proc.p_flag
# elif defined(__DragonFly__)
# define KP_FLAGS kp_flags
# elif defined(__FreeBSD__)
# define KP_FLAGS ki_flag
# elif defined(__NetBSD__)
# define KP_FLAGS p_flag
# elif defined(__OpenBSD__)
# define KP_FLAGS p_psflags
# define P_TRACED PS_TRACED
# endif
#endif
#include "sync.h"
#include "util/logs.hpp"
@ -63,6 +94,28 @@ void fmt_class_string<std::thread::id>::format(std::string& out, u64 arg)
#ifndef _WIN32
bool IsDebuggerPresent()
{
#if defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
int mib[] = {
CTL_KERN,
KERN_PROC,
KERN_PROC_PID,
getpid(),
# if defined(__NetBSD__) || defined(__OpenBSD__)
sizeof(struct kinfo_proc),
1,
# endif
};
u_int miblen = std::size(mib);
struct kinfo_proc info;
size_t size = sizeof(info);
if (sysctl(mib, miblen, &info, &size, NULL, 0))
{
return false;
}
return info.KP_FLAGS & P_TRACED;
#else
char buf[4096];
fs::file status_fd("/proc/self/status");
if (!status_fd)
@ -97,6 +150,7 @@ bool IsDebuggerPresent()
}
return false;
#endif
}
#endif