Mercurial > hg > nginx
view auto/sources @ 7784:8cc5b0365ee5
Improved maximum errno detection.
Previously, systems without sys_nerr (or _sys_nerr) were handled with an
assumption that errors start at 0 and continuous. This is, however, not
something POSIX requires, and not true on some platforms.
Notably, on Linux, where sys_nerr is no longer available for newly linked
binaries starting with glibc 2.32, there are gaps in error list, which
used to stop us from properly detecting maximum errno. Further, on
GNU/Hurd errors start at 0x40000001.
With this change, maximum errno detection is moved to the runtime code,
now able to ignore gaps, and also detects the first error if needed.
This fixes observed "Unknown error" messages as seen on Linux with
glibc 2.32 and on GNU/Hurd.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 01 Mar 2021 20:00:43 +0300 |
parents | 4089b3d2cb59 |
children | 336084ff943b 046c951e393a |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. CORE_MODULES="ngx_core_module ngx_errlog_module ngx_conf_module" CORE_INCS="src/core" CORE_DEPS="src/core/nginx.h \ src/core/ngx_config.h \ src/core/ngx_core.h \ src/core/ngx_log.h \ src/core/ngx_palloc.h \ src/core/ngx_array.h \ src/core/ngx_list.h \ src/core/ngx_hash.h \ src/core/ngx_buf.h \ src/core/ngx_queue.h \ src/core/ngx_string.h \ src/core/ngx_parse.h \ src/core/ngx_parse_time.h \ src/core/ngx_inet.h \ src/core/ngx_file.h \ src/core/ngx_crc.h \ src/core/ngx_crc32.h \ src/core/ngx_murmurhash.h \ src/core/ngx_md5.h \ src/core/ngx_sha1.h \ src/core/ngx_rbtree.h \ src/core/ngx_radix_tree.h \ src/core/ngx_rwlock.h \ src/core/ngx_slab.h \ src/core/ngx_times.h \ src/core/ngx_shmtx.h \ src/core/ngx_connection.h \ src/core/ngx_cycle.h \ src/core/ngx_conf_file.h \ src/core/ngx_module.h \ src/core/ngx_resolver.h \ src/core/ngx_open_file_cache.h \ src/core/ngx_crypt.h \ src/core/ngx_proxy_protocol.h \ src/core/ngx_syslog.h" CORE_SRCS="src/core/nginx.c \ src/core/ngx_log.c \ src/core/ngx_palloc.c \ src/core/ngx_array.c \ src/core/ngx_list.c \ src/core/ngx_hash.c \ src/core/ngx_buf.c \ src/core/ngx_queue.c \ src/core/ngx_output_chain.c \ src/core/ngx_string.c \ src/core/ngx_parse.c \ src/core/ngx_parse_time.c \ src/core/ngx_inet.c \ src/core/ngx_file.c \ src/core/ngx_crc32.c \ src/core/ngx_murmurhash.c \ src/core/ngx_md5.c \ src/core/ngx_sha1.c \ src/core/ngx_rbtree.c \ src/core/ngx_radix_tree.c \ src/core/ngx_slab.c \ src/core/ngx_times.c \ src/core/ngx_shmtx.c \ src/core/ngx_connection.c \ src/core/ngx_cycle.c \ src/core/ngx_spinlock.c \ src/core/ngx_rwlock.c \ src/core/ngx_cpuinfo.c \ src/core/ngx_conf_file.c \ src/core/ngx_module.c \ src/core/ngx_resolver.c \ src/core/ngx_open_file_cache.c \ src/core/ngx_crypt.c \ src/core/ngx_proxy_protocol.c \ src/core/ngx_syslog.c" EVENT_MODULES="ngx_events_module ngx_event_core_module" EVENT_INCS="src/event src/event/modules" EVENT_DEPS="src/event/ngx_event.h \ src/event/ngx_event_timer.h \ src/event/ngx_event_posted.h \ src/event/ngx_event_connect.h \ src/event/ngx_event_pipe.h" EVENT_SRCS="src/event/ngx_event.c \ src/event/ngx_event_timer.c \ src/event/ngx_event_posted.c \ src/event/ngx_event_accept.c \ src/event/ngx_event_udp.c \ src/event/ngx_event_connect.c \ src/event/ngx_event_pipe.c" SELECT_MODULE=ngx_select_module SELECT_SRCS=src/event/modules/ngx_select_module.c WIN32_SELECT_SRCS=src/event/modules/ngx_win32_select_module.c POLL_MODULE=ngx_poll_module POLL_SRCS=src/event/modules/ngx_poll_module.c WIN32_POLL_SRCS=src/event/modules/ngx_win32_poll_module.c KQUEUE_MODULE=ngx_kqueue_module KQUEUE_SRCS=src/event/modules/ngx_kqueue_module.c DEVPOLL_MODULE=ngx_devpoll_module DEVPOLL_SRCS=src/event/modules/ngx_devpoll_module.c EVENTPORT_MODULE=ngx_eventport_module EVENTPORT_SRCS=src/event/modules/ngx_eventport_module.c EPOLL_MODULE=ngx_epoll_module EPOLL_SRCS=src/event/modules/ngx_epoll_module.c IOCP_MODULE=ngx_iocp_module IOCP_SRCS=src/event/modules/ngx_iocp_module.c FILE_AIO_SRCS="src/os/unix/ngx_file_aio_read.c" LINUX_AIO_SRCS="src/os/unix/ngx_linux_aio_read.c" UNIX_INCS="$CORE_INCS $EVENT_INCS src/os/unix" UNIX_DEPS="$CORE_DEPS $EVENT_DEPS \ src/os/unix/ngx_time.h \ src/os/unix/ngx_errno.h \ src/os/unix/ngx_alloc.h \ src/os/unix/ngx_files.h \ src/os/unix/ngx_channel.h \ src/os/unix/ngx_shmem.h \ src/os/unix/ngx_process.h \ src/os/unix/ngx_setaffinity.h \ src/os/unix/ngx_setproctitle.h \ src/os/unix/ngx_atomic.h \ src/os/unix/ngx_gcc_atomic_x86.h \ src/os/unix/ngx_thread.h \ src/os/unix/ngx_socket.h \ src/os/unix/ngx_os.h \ src/os/unix/ngx_user.h \ src/os/unix/ngx_dlopen.h \ src/os/unix/ngx_process_cycle.h" # add to UNIX_DEPS # src/os/unix/ngx_gcc_atomic_amd64.h \ # src/os/unix/ngx_gcc_atomic_sparc64.h \ # src/os/unix/ngx_gcc_atomic_ppc.h \ # src/os/unix/ngx_sunpro_atomic_sparc64.h \ # src/os/unix/ngx_sunpro_x86.il \ # src/os/unix/ngx_sunpro_amd64.il \ # src/os/unix/ngx_sunpro_sparc64.il \ UNIX_SRCS="$CORE_SRCS $EVENT_SRCS \ src/os/unix/ngx_time.c \ src/os/unix/ngx_errno.c \ src/os/unix/ngx_alloc.c \ src/os/unix/ngx_files.c \ src/os/unix/ngx_socket.c \ src/os/unix/ngx_recv.c \ src/os/unix/ngx_readv_chain.c \ src/os/unix/ngx_udp_recv.c \ src/os/unix/ngx_send.c \ src/os/unix/ngx_writev_chain.c \ src/os/unix/ngx_udp_send.c \ src/os/unix/ngx_udp_sendmsg_chain.c \ src/os/unix/ngx_channel.c \ src/os/unix/ngx_shmem.c \ src/os/unix/ngx_process.c \ src/os/unix/ngx_daemon.c \ src/os/unix/ngx_setaffinity.c \ src/os/unix/ngx_setproctitle.c \ src/os/unix/ngx_posix_init.c \ src/os/unix/ngx_user.c \ src/os/unix/ngx_dlopen.c \ src/os/unix/ngx_process_cycle.c" POSIX_DEPS=src/os/unix/ngx_posix_config.h THREAD_POOL_MODULE=ngx_thread_pool_module THREAD_POOL_DEPS=src/core/ngx_thread_pool.h THREAD_POOL_SRCS="src/core/ngx_thread_pool.c src/os/unix/ngx_thread_cond.c src/os/unix/ngx_thread_mutex.c src/os/unix/ngx_thread_id.c" FREEBSD_DEPS="src/os/unix/ngx_freebsd_config.h src/os/unix/ngx_freebsd.h" FREEBSD_SRCS=src/os/unix/ngx_freebsd_init.c FREEBSD_SENDFILE_SRCS=src/os/unix/ngx_freebsd_sendfile_chain.c LINUX_DEPS="src/os/unix/ngx_linux_config.h src/os/unix/ngx_linux.h" LINUX_SRCS=src/os/unix/ngx_linux_init.c LINUX_SENDFILE_SRCS=src/os/unix/ngx_linux_sendfile_chain.c SOLARIS_DEPS="src/os/unix/ngx_solaris_config.h src/os/unix/ngx_solaris.h" SOLARIS_SRCS=src/os/unix/ngx_solaris_init.c SOLARIS_SENDFILEV_SRCS=src/os/unix/ngx_solaris_sendfilev_chain.c DARWIN_DEPS="src/os/unix/ngx_darwin_config.h src/os/unix/ngx_darwin.h" DARWIN_SRCS=src/os/unix/ngx_darwin_init.c DARWIN_SENDFILE_SRCS=src/os/unix/ngx_darwin_sendfile_chain.c WIN32_INCS="$CORE_INCS $EVENT_INCS src/os/win32" WIN32_DEPS="$CORE_DEPS $EVENT_DEPS \ src/os/win32/ngx_win32_config.h \ src/os/win32/ngx_time.h \ src/os/win32/ngx_errno.h \ src/os/win32/ngx_alloc.h \ src/os/win32/ngx_files.h \ src/os/win32/ngx_shmem.h \ src/os/win32/ngx_process.h \ src/os/win32/ngx_atomic.h \ src/os/win32/ngx_thread.h \ src/os/win32/ngx_socket.h \ src/os/win32/ngx_os.h \ src/os/win32/ngx_user.h \ src/os/win32/ngx_dlopen.h \ src/os/win32/ngx_process_cycle.h" WIN32_CONFIG=src/os/win32/ngx_win32_config.h WIN32_SRCS="$CORE_SRCS $EVENT_SRCS \ src/os/win32/ngx_errno.c \ src/os/win32/ngx_alloc.c \ src/os/win32/ngx_files.c \ src/os/win32/ngx_shmem.c \ src/os/win32/ngx_time.c \ src/os/win32/ngx_process.c \ src/os/win32/ngx_thread.c \ src/os/win32/ngx_socket.c \ src/os/win32/ngx_wsarecv.c \ src/os/win32/ngx_wsarecv_chain.c \ src/os/win32/ngx_udp_wsarecv.c \ src/os/win32/ngx_wsasend.c \ src/os/win32/ngx_wsasend_chain.c \ src/os/win32/ngx_win32_init.c \ src/os/win32/ngx_user.c \ src/os/win32/ngx_dlopen.c \ src/os/win32/ngx_event_log.c \ src/os/win32/ngx_process_cycle.c \ src/event/ngx_event_acceptex.c" NGX_WIN32_ICONS="src/os/win32/nginx.ico" NGX_WIN32_RC="src/os/win32/nginx.rc" HTTP_FILE_CACHE_SRCS=src/http/ngx_http_file_cache.c