1、前言
作者本人是桌面軟件開發出身，由於以前被vs，qt以及eclipse等IDE寵壞了，導致對Linux vim使用不熟悉。於是我決定使用QtCreator，把nginx源碼搞成Qt Creator工程，實現編譯和斷點調試。
2、環境準備
（1）安裝Linux系統，例如CentOS 7，帶GNOME桌面環境，gcc v4.8.5，http://mirror.centos.org/
（2）安裝qt-opensource-linux-x64-5.9.7.run，http://download.qt.io/official_releases/qt/
（3）使用源碼nginx-1.12.2.tar.gz，http://nginx.org/download/
解壓並配置nginx源碼：
tar -xvf nginx-1.12.2.tar.gz
cd nginx-1.12.2
./configure
上述步驟執行完後，在nginx-1.12.2目錄下會生成objs文件夾，其中有我們後續會添加到qt工程中的代碼文件，需要特別注意；
3、打開QtCreator，新建pro空工程
4、新建nginxQtProject工程，建立之後的文件夾情況如下，請關注nginxQtProject文件夾裏面的.pro文件：
5、導入相關.c和.h文件
6、.pro文件清單如下，文件主要來源是src和objs文件夾，註釋掉的是編譯通不過的文件：
TARGET = nginx
LIBS = -ldl -lpthread -lcrypt -lpcre -lz
#LIBS = -lpthread -lcrypt -lpcre -lcrypto -lcrypto -lz
INCLUDEPATH += \
../src/core \
../src/event \
../src/event/modules \
../src/http \
../src/http/modules \
#../src/mail \
#../src/misc \
../src/os/unix \
../src/stream \
../objs
HEADERS += \
../src/core/nginx.h \
../src/core/ngx_array.h \
../src/core/ngx_buf.h \
../src/core/ngx_conf_file.h \
../src/core/ngx_config.h \
../src/core/ngx_connection.h \
../src/core/ngx_core.h \
../src/core/ngx_crc.h \
../src/core/ngx_crc32.h \
../src/core/ngx_crypt.h \
../src/core/ngx_cycle.h \
../src/core/ngx_file.h \
../src/core/ngx_hash.h \
../src/core/ngx_inet.h \
../src/core/ngx_list.h \
../src/core/ngx_log.h \
../src/core/ngx_md5.h \
../src/core/ngx_module.h \
../src/core/ngx_murmurhash.h \
../src/core/ngx_open_file_cache.h \
../src/core/ngx_palloc.h \
../src/core/ngx_parse.h \
../src/core/ngx_parse_time.h \
../src/core/ngx_proxy_protocol.h \
../src/core/ngx_queue.h \
../src/core/ngx_radix_tree.h \
../src/core/ngx_rbtree.h \
../src/core/ngx_regex.h \
../src/core/ngx_resolver.h \
../src/core/ngx_rwlock.h \
../src/core/ngx_sha1.h \
../src/core/ngx_shmtx.h \
../src/core/ngx_slab.h \
../src/core/ngx_string.h \
../src/core/ngx_syslog.h \
#../src/core/ngx_thread_pool.h \
../src/core/ngx_times.h \
../src/event/ngx_event.h \
../src/event/ngx_event_connect.h \
../src/event/ngx_event_openssl.h \
../src/event/ngx_event_pipe.h \
../src/event/ngx_event_posted.h \
../src/event/ngx_event_timer.h \
../src/http/modules/perl/nginx.xs \
../src/http/modules/perl/ngx_http_perl_module.h \
../src/http/modules/ngx_http_ssi_filter_module.h \
../src/http/modules/ngx_http_ssl_module.h \
../src/http/v2/ngx_http_v2.h \
../src/http/v2/ngx_http_v2_module.h \
../src/http/ngx_http.h \
../src/http/ngx_http_cache.h \
../src/http/ngx_http_config.h \
../src/http/ngx_http_core_module.h \
../src/http/ngx_http_request.h \
../src/http/ngx_http_script.h \
../src/http/ngx_http_upstream.h \
../src/http/ngx_http_upstream_round_robin.h \
../src/http/ngx_http_variables.h \
../src/mail/ngx_mail.h \
../src/mail/ngx_mail_imap_module.h \
../src/mail/ngx_mail_pop3_module.h \
../src/mail/ngx_mail_smtp_module.h \
../src/mail/ngx_mail_ssl_module.h \
../src/os/unix/ngx_alloc.h \
../src/os/unix/ngx_atomic.h \
../src/os/unix/ngx_channel.h \
../src/os/unix/ngx_darwin.h \
../src/os/unix/ngx_darwin_config.h \
../src/os/unix/ngx_dlopen.h \
../src/os/unix/ngx_errno.h \
../src/os/unix/ngx_files.h \
../src/os/unix/ngx_freebsd.h \
../src/os/unix/ngx_freebsd_config.h \
../src/os/unix/ngx_gcc_atomic_amd64.h \
../src/os/unix/ngx_gcc_atomic_ppc.h \
../src/os/unix/ngx_gcc_atomic_sparc64.h \
../src/os/unix/ngx_gcc_atomic_x86.h \
../src/os/unix/ngx_linux.h \
../src/os/unix/ngx_linux_config.h \
../src/os/unix/ngx_os.h \
../src/os/unix/ngx_posix_config.h \
../src/os/unix/ngx_process.h \
../src/os/unix/ngx_process_cycle.h \
../src/os/unix/ngx_setaffinity.h \
../src/os/unix/ngx_setproctitle.h \
../src/os/unix/ngx_shmem.h \
../src/os/unix/ngx_socket.h \
../src/os/unix/ngx_solaris.h \
../src/os/unix/ngx_solaris_config.h \
../src/os/unix/ngx_sunpro_atomic_sparc64.h \
../src/os/unix/ngx_thread.h \
../src/os/unix/ngx_time.h \
../src/os/unix/ngx_user.h \
../src/stream/ngx_stream.h \
../src/stream/ngx_stream_script.h \
../src/stream/ngx_stream_ssl_module.h \
../src/stream/ngx_stream_upstream.h \
../src/stream/ngx_stream_upstream_round_robin.h \
../src/stream/ngx_stream_variables.h \
../objs/ngx_auto_config.h \
../objs/ngx_auto_headers.h
SOURCES += \
#../src/misc/ngx_cpp_test_module.cpp \
../src/core/nginx.c \
../src/core/ngx_array.c \
../src/core/ngx_buf.c \
../src/core/ngx_conf_file.c \
../src/core/ngx_connection.c \
../src/core/ngx_cpuinfo.c \
../src/core/ngx_crc32.c \
../src/core/ngx_crypt.c \
../src/core/ngx_cycle.c \
../src/core/ngx_file.c \
../src/core/ngx_hash.c \
../src/core/ngx_inet.c \
../src/core/ngx_list.c \
../src/core/ngx_log.c \
../src/core/ngx_md5.c \
../src/core/ngx_module.c \
../src/core/ngx_murmurhash.c \
../src/core/ngx_open_file_cache.c \
../src/core/ngx_output_chain.c \
../src/core/ngx_palloc.c \
../src/core/ngx_parse.c \
../src/core/ngx_parse_time.c \
../src/core/ngx_proxy_protocol.c \
../src/core/ngx_queue.c \
../src/core/ngx_radix_tree.c \
../src/core/ngx_rbtree.c \
../src/core/ngx_regex.c \
../src/core/ngx_resolver.c \
../src/core/ngx_rwlock.c \
../src/core/ngx_sha1.c \
../src/core/ngx_shmtx.c \
../src/core/ngx_slab.c \
../src/core/ngx_spinlock.c \
../src/core/ngx_string.c \
../src/core/ngx_syslog.c \
#../src/core/ngx_thread_pool.c \
../src/core/ngx_times.c \
#../src/event/modules/ngx_devpoll_module.c \
../src/event/modules/ngx_epoll_module.c \
#../src/event/modules/ngx_eventport_module.c \
#../src/event/modules/ngx_kqueue_module.c \
#../src/event/modules/ngx_poll_module.c \
../src/event/modules/ngx_select_module.c \
#../src/event/modules/ngx_win32_select_module.c \
../src/event/ngx_event.c \
../src/event/ngx_event_accept.c \
../src/event/ngx_event_connect.c \
#../src/event/ngx_event_openssl.c \
#../src/event/ngx_event_openssl_stapling.c \
../src/event/ngx_event_pipe.c \
../src/event/ngx_event_posted.c \
../src/event/ngx_event_timer.c \
#../src/http/modules/perl/ngx_http_perl_module.c \
../src/http/modules/ngx_http_access_module.c \
../src/http/modules/ngx_http_addition_filter_module.c \
../src/http/modules/ngx_http_auth_basic_module.c \
../src/http/modules/ngx_http_auth_request_module.c \
../src/http/modules/ngx_http_autoindex_module.c \
../src/http/modules/ngx_http_browser_module.c \
../src/http/modules/ngx_http_charset_filter_module.c \
../src/http/modules/ngx_http_chunked_filter_module.c \
#../src/http/modules/ngx_http_dav_module.c \
#../src/http/modules/ngx_http_degradation_module.c \
../src/http/modules/ngx_http_empty_gif_module.c \
../src/http/modules/ngx_http_fastcgi_module.c \
../src/http/modules/ngx_http_flv_module.c \
../src/http/modules/ngx_http_geo_module.c \
#../src/http/modules/ngx_http_geoip_module.c \
../src/http/modules/ngx_http_gunzip_filter_module.c \
../src/http/modules/ngx_http_gzip_filter_module.c \
../src/http/modules/ngx_http_gzip_static_module.c \
../src/http/modules/ngx_http_headers_filter_module.c \
#../src/http/modules/ngx_http_image_filter_module.c \
../src/http/modules/ngx_http_index_module.c \
../src/http/modules/ngx_http_limit_conn_module.c \
../src/http/modules/ngx_http_limit_req_module.c \
../src/http/modules/ngx_http_log_module.c \
../src/http/modules/ngx_http_map_module.c \
../src/http/modules/ngx_http_memcached_module.c \
../src/http/modules/ngx_http_mp4_module.c \
../src/http/modules/ngx_http_not_modified_filter_module.c \
../src/http/modules/ngx_http_proxy_module.c \
../src/http/modules/ngx_http_random_index_module.c \
../src/http/modules/ngx_http_range_filter_module.c \
#../src/http/modules/ngx_http_realip_module.c \
../src/http/modules/ngx_http_referer_module.c \
../src/http/modules/ngx_http_rewrite_module.c \
../src/http/modules/ngx_http_scgi_module.c \
../src/http/modules/ngx_http_secure_link_module.c \
../src/http/modules/ngx_http_slice_filter_module.c \
../src/http/modules/ngx_http_split_clients_module.c \
../src/http/modules/ngx_http_ssi_filter_module.c \
#../src/http/modules/ngx_http_ssl_module.c \
../src/http/modules/ngx_http_static_module.c \
#../src/http/modules/ngx_http_stub_status_module.c \
../src/http/modules/ngx_http_sub_filter_module.c \
../src/http/modules/ngx_http_upstream_hash_module.c \
../src/http/modules/ngx_http_upstream_ip_hash_module.c \
../src/http/modules/ngx_http_upstream_keepalive_module.c \
../src/http/modules/ngx_http_upstream_least_conn_module.c \
../src/http/modules/ngx_http_upstream_zone_module.c \
../src/http/modules/ngx_http_userid_filter_module.c \
../src/http/modules/ngx_http_uwsgi_module.c \
#../src/http/modules/ngx_http_xslt_filter_module.c \
#../src/http/v2/ngx_http_v2.c \
#../src/http/v2/ngx_http_v2_filter_module.c \
#../src/http/v2/ngx_http_v2_huff_decode.c \
#../src/http/v2/ngx_http_v2_huff_encode.c \
#../src/http/v2/ngx_http_v2_module.c \
#../src/http/v2/ngx_http_v2_table.c \
../src/http/ngx_http.c \
../src/http/ngx_http_copy_filter_module.c \
../src/http/ngx_http_core_module.c \
../src/http/ngx_http_file_cache.c \
../src/http/ngx_http_header_filter_module.c \
../src/http/ngx_http_parse.c \
../src/http/ngx_http_postpone_filter_module.c \
../src/http/ngx_http_request.c \
../src/http/ngx_http_request_body.c \
../src/http/ngx_http_script.c \
../src/http/ngx_http_special_response.c \
../src/http/ngx_http_upstream.c \
../src/http/ngx_http_upstream_round_robin.c \
../src/http/ngx_http_variables.c \
../src/http/ngx_http_write_filter_module.c \
#../src/mail/ngx_mail.c \
#../src/mail/ngx_mail_auth_http_module.c \
#../src/mail/ngx_mail_core_module.c \
#../src/mail/ngx_mail_handler.c \
#../src/mail/ngx_mail_imap_handler.c \
#../src/mail/ngx_mail_imap_module.c \
#../src/mail/ngx_mail_parse.c \
#../src/mail/ngx_mail_pop3_handler.c \
#../src/mail/ngx_mail_pop3_module.c \
#../src/mail/ngx_mail_proxy_module.c \
#../src/mail/ngx_mail_smtp_handler.c \
#../src/mail/ngx_mail_smtp_module.c \
#../src/mail/ngx_mail_ssl_module.c \
#../src/misc/ngx_google_perftools_module.c \
../src/os/unix/ngx_alloc.c \
../src/os/unix/ngx_channel.c \
../src/os/unix/ngx_daemon.c \
#../src/os/unix/ngx_darwin_init.c \
#../src/os/unix/ngx_darwin_sendfile_chain.c \
../src/os/unix/ngx_dlopen.c \
../src/os/unix/ngx_errno.c \
#../src/os/unix/ngx_file_aio_read.c \
../src/os/unix/ngx_files.c \
#../src/os/unix/ngx_freebsd_init.c \
#../src/os/unix/ngx_freebsd_sendfile_chain.c \
#../src/os/unix/ngx_linux_aio_read.c \
../src/os/unix/ngx_linux_init.c \
../src/os/unix/ngx_linux_sendfile_chain.c \
../src/os/unix/ngx_posix_init.c \
../src/os/unix/ngx_process.c \
../src/os/unix/ngx_process_cycle.c \
../src/os/unix/ngx_readv_chain.c \
../src/os/unix/ngx_recv.c \
../src/os/unix/ngx_send.c \
../src/os/unix/ngx_setaffinity.c \
../src/os/unix/ngx_setproctitle.c \
../src/os/unix/ngx_shmem.c \
../src/os/unix/ngx_socket.c \
#../src/os/unix/ngx_solaris_init.c \
#../src/os/unix/ngx_solaris_sendfilev_chain.c \
#../src/os/unix/ngx_thread_cond.c \
#../src/os/unix/ngx_thread_id.c \
#../src/os/unix/ngx_thread_mutex.c \
../src/os/unix/ngx_time.c \
../src/os/unix/ngx_udp_recv.c \
../src/os/unix/ngx_udp_send.c \
../src/os/unix/ngx_udp_sendmsg_chain.c \
../src/os/unix/ngx_user.c \
../src/os/unix/ngx_writev_chain.c \
../src/stream/ngx_stream.c \
../src/stream/ngx_stream_access_module.c \
../src/stream/ngx_stream_core_module.c \
../src/stream/ngx_stream_geo_module.c \
#../src/stream/ngx_stream_geoip_module.c \
../src/stream/ngx_stream_handler.c \
../src/stream/ngx_stream_limit_conn_module.c \
../src/stream/ngx_stream_log_module.c \
../src/stream/ngx_stream_map_module.c \
../src/stream/ngx_stream_proxy_module.c \
../src/stream/ngx_stream_realip_module.c \
../src/stream/ngx_stream_return_module.c \
../src/stream/ngx_stream_script.c \
../src/stream/ngx_stream_split_clients_module.c \
#../src/stream/ngx_stream_ssl_module.c \
../src/stream/ngx_stream_ssl_preread_module.c \
../src/stream/ngx_stream_upstream.c \
../src/stream/ngx_stream_upstream_hash_module.c \
../src/stream/ngx_stream_upstream_least_conn_module.c \
../src/stream/ngx_stream_upstream_round_robin.c \
#../src/stream/ngx_stream_upstream_zone_module.c \
../src/stream/ngx_stream_variables.c \
../src/stream/ngx_stream_write_filter_module.c \
../objs/ngx_modules.c
7、編譯通過，運行會報錯：
09:26:00: Starting /root/Downloads/nginx/nginx-1.12.2/build-nginxQtProject_firecat-Desktop_Qt_5_9_7_GCC_64bit-Debug/nginx...
nginx: [alert] could not open error log file: open() "/usr/local/nginx/logs/error.log" failed (2: No such file or directory)
2018/11/04 09:26:00 [emerg] 13081#0: open() "/usr/local/nginx/conf/nginx.conf" failed (2: No such file or directory)
09:26:00: /root/Downloads/nginx/nginx-1.12.2/build-nginxQtProject_firecat-Desktop_Qt_5_9_7_GCC_64bit-Debug/nginx exited with code 1
解決辦法：手動新建/usr/local/nginx/logs和conf路徑，把配置文件拷貝過來。
8、我們終於可以執行斷點調試，大功告成！
9、附錄：完整的工程源碼下載
https://download.csdn.net/download/libaineu2004/10763167