From 6fb73a3d97d7b083824d62cff6fb4c9d2b463ae0 Mon Sep 17 00:00:00 2001
From: Arvid Gerstmann <dev@arvid-g.de>
Date: Sat, 14 Jul 2018 13:26:55 +0200
Subject: [PATCH] Implement getname alternative if it's not available

---
 common/TracySystem.cpp | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/common/TracySystem.cpp b/common/TracySystem.cpp
index bfe06266..06398fa1 100644
--- a/common/TracySystem.cpp
+++ b/common/TracySystem.cpp
@@ -6,6 +6,11 @@
 #  include <unistd.h>
 #endif
 
+#ifdef __linux__
+#include <syscall.h>
+#include <fcntl.h>
+#endif
+
 #include <inttypes.h>
 #include <stdio.h>
 
@@ -135,11 +140,26 @@ const char* GetThreadName( uint64_t id )
         }
     }
 #    endif
-#  elif defined _GNU_SOURCE && !defined __ANDROID__ && !defined __EMSCRIPTEN__
+#  elif defined __GLIBC__ && !defined __ANDROID__ && !defined __EMSCRIPTEN__
     if( pthread_getname_np( (pthread_t)id, buf, 256 ) == 0 )
     {
         return buf;
     }
+#  elif defined __linux__
+    int cs, fd;
+    char path[32];
+    int tid = (int)syscall( SYS_gettid );
+    snprintf( path, sizeof(path), "/proc/self/task/%d/comm", tid );
+    sprintf( buf, "%" PRIu64, id );
+    pthread_setcancelstate( PTHREAD_CANCEL_DISABLE, &cs );
+    if ((fd = open(path, O_RDONLY)) > 0) {
+        int len = read( fd, buf, 255 );
+        if (len > 0)
+            buf[len] = 0;
+        close(fd);
+    }
+    pthread_setcancelstate(cs, 0);
+    return buf;
 #  endif
 #endif
     sprintf( buf, "%" PRIu64, id );