From a91d296f87e8cd10db4d3483894d9580493a10ee Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Fri, 20 Dec 2019 20:12:52 +0300
Subject: [PATCH] Minor improvements.

GitOrigin-RevId: f66a5294ec1026c85dc71f62bb0026dce4a09fe0
---
 tdutils/td/utils/port/stacktrace.cpp | 5 ++++-
 tdutils/td/utils/port/stacktrace.h   | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/tdutils/td/utils/port/stacktrace.cpp b/tdutils/td/utils/port/stacktrace.cpp
index 384b2d0f..05828dc4 100644
--- a/tdutils/td/utils/port/stacktrace.cpp
+++ b/tdutils/td/utils/port/stacktrace.cpp
@@ -53,10 +53,12 @@ void print_backtrace_gdb(void) {
     name_buf[res] = 0;
 
 #if TD_LINUX
+#if defined(PR_SET_DUMPABLE)
     if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) < 0) {
       signal_safe_write("Can't set dumpable\n");
       return;
     }
+#endif
 #if defined(PR_SET_PTRACER)
     // We can't use event fd because we are in a signal handler
     int fds[2];
@@ -108,14 +110,15 @@ void print_backtrace_gdb(void) {
 }  // namespace
 
 void Stacktrace::print_to_stderr(const PrintOptions &options) {
+  print_backtrace();
   if (options.use_gdb) {
     print_backtrace_gdb();
   }
-  print_backtrace();
 }
 
 void Stacktrace::init() {
 #if __GLIBC__
+  // backtrace needs to be called once to ensure that next calls are async-signal-safe
   void *buffer[1];
   backtrace(buffer, 1);
 #endif
diff --git a/tdutils/td/utils/port/stacktrace.h b/tdutils/td/utils/port/stacktrace.h
index 5a16ec01..8a2cf8bc 100644
--- a/tdutils/td/utils/port/stacktrace.h
+++ b/tdutils/td/utils/port/stacktrace.h
@@ -16,7 +16,7 @@ class Stacktrace {
     }
   };
   static void print_to_stderr(const PrintOptions &options = PrintOptions());
-  // backtrace needs to be called once to ensure that next calls are async-signal-safe
+
   static void init();
 };