【发布时间】：2019-04-27 20:03:27
【问题描述】：
我正在为 uni 做一个 SDL 项目，并在 windows 上的 Visual Studio 中制作了一个完全可以运行的程序，但是当我将程序放在 Linux 上（演示所需）时，我遇到了分段错误。我想知道我的 cmakelist 文件是否是错误的，因为 gdb 输出主要是 sdl 库中的东西，但我真的不确定，因为我是 cmake 的新手。
我尝试使用 gdb 追踪分段错误，但没有多大帮助！我从 Windows 版本中改变的只是我已经制作了一个 cmakelists.txt 并更改了我的头文件中的包含内容以用于 linux 上的 SDL。
GDB 输出：
#0 0x00007fffed4f521e in ?? ()
#1 0x00007ffff4f5bac2 in XCloseIM () from /lib64/libX11.so.6
#2 0x00007ffff7b67c44 in X11_VideoQuit () from /lib64/libSDL2-2.0.so.0
#3 0x00007ffff7b37d4e in SDL_VideoQuit_REAL () from /lib64/libSDL2-2.0.so.0
#4 0x00007ffff7aaffc5 in SDL_QuitSubSystem_REAL () from /lib64/libSDL2-2.0.so.0
#5 0x00007ffff7ab00e8 in SDL_Quit_REAL () from /lib64/libSDL2-2.0.so.0
#6 0x000000000040266f in close () at /home/csunix/sc18mk/Documents/Programming Project/SDL/SDL FOR C/main.c:105
#7 0x00007fffed144b13 in _dbus_close () from /lib64/libdbus-1.so.3
#8 0x00007fffed13c2c6 in socket_disconnect () from /lib64/libdbus-1.so.3
#9 0x00007fffed13b0fb in _dbus_transport_disconnect.part.5 () from /lib64/libdbus-1.so.3
#10 0x00007fffed125ee2 in _dbus_connection_close_possibly_shared_and_unlock () from /lib64/libdbus-1.so.3
#11 0x00007ffff7b759d6 in SDL_DBus_Quit () from /lib64/libSDL2-2.0.so.0
#12 0x00007ffff7b37d4e in SDL_VideoQuit_REAL () from /lib64/libSDL2-2.0.so.0
#13 0x00007ffff7aaffc5 in SDL_QuitSubSystem_REAL () from /lib64/libSDL2-2.0.so.0
#14 0x00007ffff7ab00e8 in SDL_Quit_REAL () from /lib64/libSDL2-2.0.so.0
#15 0x000000000040266f in close () at /home/csunix/sc18mk/Documents/Programming Project/SDL/SDL FOR C/main.c:105
#16 0x00007ffff4cefc1b in xcb_disconnect () from /lib64/libxcb.so.1
#17 0x00007fffdcab539d in pa_client_conf_from_x11 () from /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#18 0x00007fffdca76050 in pa_client_conf_load () from /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#19 0x00007fffdccee884 in pa_context_new_with_proplist () from /lib64/libpulse.so.0
#20 0x00007ffff7b5aa2e in ConnectToPulseServer_Internal () from /lib64/libSDL2-2.0.so.0
#21 0x00007ffff7b5b0c9 in PULSEAUDIO_Init () from /lib64/libSDL2-2.0.so.0
#22 0x00007ffff7ab448c in SDL_AudioInit_REAL () from /lib64/libSDL2-2.0.so.0
#23 0x00007ffff7aafcb7 in SDL_InitSubSystem_REAL () from /lib64/libSDL2-2.0.so.0
#24 0x000000000040292f in init () at /home/csunix/sc18mk/Documents/Programming Project/SDL/SDL FOR C/init.c:13
#25 0x0000000000402694 in main (argc=1, args=0x7fffffffdbd8) at /home/csunix/sc18mk/Documents/Programming Project/SDL/SDL FOR C/main.c:111
(gdb) frame 6
#6 0x000000000040266f in close () at /home/csunix/sc18mk/Documents/Programming Project/SDL/SDL FOR C/main.c:105
105 SDL_Quit();
(gdb) frame 15
#15 0x000000000040266f in close () at /home/csunix/sc18mk/Documents/Programming Project/SDL/SDL FOR C/main.c:105
105 SDL_Quit();
(gdb) frame 25
#25 0x0000000000402694 in main (argc=1, args=0x7fffffffdbd8) at /home/csunix/sc18mk/Documents/Programming Project/SDL/SDL FOR C/main.c:111
111 if (init()) {
(gdb) frame 24
#24 0x000000000040292f in init () at /home/csunix/sc18mk/Documents/Programming Project/SDL/SDL FOR C/init.c:13
13 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) == -1) {
CMakeLists.txt：
project(SDL)
#set( CMAKE_BUILD_TYPE Release)
set( CMAKE_BUILD_TYPE Debug)
cmake_minimum_required(VERSION 2.6)
set (CMAKE_C_FLAGS "-std=c99 -lSDL2 -lSDL2_image -lSDL2_ttf -lSDL_mixer -g")
add_executable(kraken main.c init.c kraken.c worldObject.c menu.c leaderboard.c display.c)
set_property(TARGET kraken PROPERTY C_STANDARD 99)
【问题讨论】：
-
问题出在你程序中的代码上，但是我们看不到。确保以与分配相反的顺序释放事物，并注意是否将任何已分配数据的所有权传递给接收者，以免尝试双重释放它。如果您需要更多帮助，请联系minimal reproducible example。仅仅因为您没有目睹 Widows 的崩溃并不意味着您的程序是正确的。学习使用 Valgrind。
标签： c segmentation-fault sdl