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view auto/os/conf @ 6033:8e66a83d16ae
Core: added cyclic memory buffer support for error_log.
Example of usage:
error_log memory:16m debug;
This allows to configure debug logging with minimum impact on performance.
It's especially useful when rare crashes are experienced under high load.
The log can be extracted from a coredump using the following gdb script:
set $log = ngx_cycle->log
while $log->writer != ngx_log_memory_writer
set $log = $log->next
end
set $buf = (ngx_log_memory_buf_t *) $log->wdata
dump binary memory debug_log.txt $buf->start $buf->end
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Thu, 19 Mar 2015 19:29:43 +0300 |
parents | 489839d07b38 |
children | a88e309f839b |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. echo "checking for $NGX_SYSTEM specific features" case "$NGX_PLATFORM" in FreeBSD:*) . auto/os/freebsd ;; Linux:*) . auto/os/linux ;; SunOS:*) . auto/os/solaris ;; Darwin:*) . auto/os/darwin ;; win32) . auto/os/win32 ;; DragonFly:*) have=NGX_FREEBSD . auto/have_headers CORE_INCS="$UNIX_INCS" CORE_DEPS="$UNIX_DEPS $FREEBSD_DEPS" CORE_SRCS="$UNIX_SRCS $FREEBSD_SRCS" echo " + sendfile() found" have=NGX_HAVE_SENDFILE . auto/have CORE_SRCS="$CORE_SRCS $FREEBSD_SENDFILE_SRCS" ngx_spacer=' ' ;; HP-UX:*) # HP/UX have=NGX_HPUX . auto/have_headers CORE_INCS="$UNIX_INCS" CORE_DEPS="$UNIX_DEPS $POSIX_DEPS" CORE_SRCS="$UNIX_SRCS" CC_AUX_FLAGS="$CC_AUX_FLAGS -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1" CC_AUX_FLAGS="$CC_AUX_FLAGS -D_HPUX_ALT_XOPEN_SOCKET_API" ;; OSF1:*) # Tru64 UNIX have=NGX_TRU64 . auto/have_headers have=NGX_HAVE_STRERROR_R . auto/nohave CORE_INCS="$UNIX_INCS" CORE_DEPS="$UNIX_DEPS $POSIX_DEPS" CORE_SRCS="$UNIX_SRCS" ;; *) CORE_INCS="$UNIX_INCS" CORE_DEPS="$UNIX_DEPS $POSIX_DEPS" CORE_SRCS="$UNIX_SRCS" ;; esac case "$NGX_MACHINE" in i386 | i686 | i86pc) have=NGX_HAVE_NONALIGNED . auto/have NGX_MACH_CACHE_LINE=32 ;; amd64 | x86_64) have=NGX_HAVE_NONALIGNED . auto/have NGX_MACH_CACHE_LINE=64 ;; sun4u | sun4v | sparc | sparc64) have=NGX_ALIGNMENT value=16 . auto/define # TODO NGX_MACH_CACHE_LINE=64 ;; ia64 ) have=NGX_ALIGNMENT value=16 . auto/define # TODO NGX_MACH_CACHE_LINE=64 ;; *) have=NGX_ALIGNMENT value=16 . auto/define NGX_MACH_CACHE_LINE=32 ;; esac if test -z "$NGX_CPU_CACHE_LINE"; then NGX_CPU_CACHE_LINE=$NGX_MACH_CACHE_LINE fi have=NGX_CPU_CACHE_LINE value=$NGX_CPU_CACHE_LINE . auto/define