diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7918af9a..957663ba 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -71,6 +71,36 @@ else()
     set(BBASM_MODE "string")
 endif()
 
+if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    include(CheckCXXSourceCompiles)
+
+    check_cxx_source_compiles("
+        #include <gnu/libc-version.h>
+        int main() { return 0; }
+    " HAVE_GLIBC)
+
+    if (HAVE_GLIBC)
+        set(USE_LIBUNWIND OFF)
+    else()
+        set(USE_LIBUNWIND ON)
+        find_library(LIBUNWIND_LIBRARY NAMES unwind)
+        find_path(LIBUNWIND_INCLUDE_DIR NAMES libunwind.h)
+
+        if(LIBUNWIND_LIBRARY)
+            find_library(LIBUNWIND_LIBRARY_ARCH NAMES "unwind-${CMAKE_SYSTEM_PROCESSOR}")
+            if(LIBUNWIND_LIBRARY_ARCH)
+                set(LIBUNWIND_LIBRARY "${LIBUNWIND_LIBRARY};${LIBUNWIND_LIBRARY_ARCH}")
+            endif()
+        endif()
+
+        if(NOT LIBUNWIND_LIBRARY OR NOT LIBUNWIND_INCLUDE_DIR)
+            message(FATAL_ERROR "libunwind not found. Install libunwind-dev")
+        endif()
+    endif()
+else()
+    set(USE_LIBUNWIND OFF)
+endif()
+
 find_package(Threads)
 if (NOT Threads_FOUND)
     add_definitions(-DNPNR_DISABLE_THREADS)
@@ -364,6 +394,10 @@ function(add_nextpnr_architecture target)
     target_link_libraries(nextpnr-${target} PRIVATE nextpnr-${target}-core)
     if (BUILD_GUI)
         target_link_libraries(nextpnr-${target} PRIVATE nextpnr-${target}-gui)
+        if (USE_LIBUNWIND)
+            target_include_directories(nextpnr-${target} PRIVATE ${LIBUNWIND_INCLUDE_DIR})
+            target_link_libraries(nextpnr-${target} PRIVATE ${LIBUNWIND_LIBRARY})
+        endif()
     endif()
 
     install(TARGETS nextpnr-${target} RUNTIME DESTINATION bin)
@@ -382,6 +416,10 @@ function(add_nextpnr_architecture target)
         if (BUILD_GUI)
             target_link_libraries(nextpnr-${target}-test PRIVATE nextpnr-${target}-gui)
             target_link_libraries(nextpnr-${target}-test PRIVATE nextpnr_test_gui)
+            if (USE_LIBUNWIND)
+                target_include_directories(nextpnr-${target}-test PRIVATE ${LIBUNWIND_INCLUDE_DIR})
+                target_link_libraries(nextpnr-${target}-test PRIVATE ${LIBUNWIND_LIBRARY})
+            endif()
         endif()
     endif()
 
diff --git a/gui/application.cc b/gui/application.cc
index a5581356..eec6cc8b 100644
--- a/gui/application.cc
+++ b/gui/application.cc
@@ -28,7 +28,11 @@
 #include "log.h"
 
 #ifdef __linux__
+#if defined(__GLIBC__)
 #include <execinfo.h>
+#else
+#include <libunwind.h>
+#endif
 #endif
 
 NEXTPNR_NAMESPACE_BEGIN
@@ -48,17 +52,41 @@ namespace {
 #ifdef __linux__
 std::string get_backtrace_str()
 {
+    std::ostringstream ss;
+    ss << "Backtrace: " << std::endl;
+    #if defined(__GLIBC__)
     static const size_t MAX_BT_SIZE = 1024;
     std::array<void *, MAX_BT_SIZE> bt_data;
     int bt_len = backtrace(bt_data.data(), MAX_BT_SIZE);
     char **bt_symbols = backtrace_symbols(bt_data.data(), bt_len);
     if (bt_symbols == nullptr)
         return "";
-    std::ostringstream ss;
-    ss << "Backtrace: " << std::endl;
     for (int i = 0; i < bt_len; i++)
         ss << "  " << bt_symbols[i] << std::endl;
     free(bt_symbols);
+    #else
+    unw_cursor_t cursor;
+    unw_context_t context;
+    unw_getcontext(&context);
+    unw_init_local(&cursor, &context);
+
+    int frame_num = 0;
+    while (unw_step(&cursor) > 0) {
+        unw_word_t ip;
+        char func_name[256];
+        unw_word_t offset;
+
+        unw_get_reg(&cursor, UNW_REG_IP, &ip);
+        if (unw_get_proc_name(&cursor, func_name, sizeof(func_name), &offset) == 0) {
+            ss << "  #" << frame_num << ": " << func_name << " + 0x"
+               << std::hex << offset << " [0x" << ip << "]\n";
+        } else {
+            ss << "  #" << frame_num << ": -- unknown -- [0x"
+               << std::hex << ip << "]\n";
+        }
+        frame_num++;
+    }
+    #endif
     return ss.str();
 }
 #else