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Fix debugger detection on macOS (#4511)

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This commit is contained in:
Nikolay Kasyanov 2018-07-15 12:35:07 +02:00
parent 0bd6078826
commit 21f198af7a
1 changed files with 34 additions and 0 deletions
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34
components/crashcatcher/crashcatcher.cpp
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@ -32,6 +32,10 @@ namespace bfs = boost::filesystem;
#include <signal.h>
#endif
#if defined(__APPLE__)
#include <sys/sysctl.h>
#endif
#define UNUSED(x) (void)(x)
static const char crash_switch[] = "--cc-handle-crash";
@ -460,6 +464,7 @@ int crashCatcherInstallHandlers(int argc, char **argv, int num_signals, int *sig
static bool is_debugger_present()
{
#if !defined (__APPLE__)
bfs::ifstream file((bfs::path("/proc/self/status")));
while (!file.eof())
{
@ -472,6 +477,35 @@ static bool is_debugger_present()
}
}
return false;
#else
int junk;
int mib[4];
struct kinfo_proc info;
size_t size;
// Initialize the flags so that, if sysctl fails for some bizarre
// reason, we get a predictable result.
info.kp_proc.p_flag = 0;
// Initialize mib, which tells sysctl the info we want, in this case
// we're looking for information about a specific process ID.
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_PID;
mib[3] = getpid();
// Call sysctl.
size = sizeof(info);
junk = sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, NULL, 0);
assert(junk == 0);
// We're being debugged if the P_TRACED flag is set.
return (info.kp_proc.p_flag & P_TRACED) != 0;
#endif
}
void crashCatcherInstall(int argc, char **argv, const std::string &crashLogPath)