Minor structural change to allow core dumping(or not) from init
-Erik
This commit is contained in:
Erik Andersen
parent
983b51b17b
commit
183da4ade1
@ -42,6 +42,7 @@
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the same, and prints an error (instead of endlessly looping).
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- mv now attempts to do a rename, and will fall back to doing
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a copy only if the rename fails.
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- Syslogd now supports multiple concurrent connections
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* Several fixes from Pavel Roskin <pavel_roskin@geocities.com>:
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- Fixes to sort. Removed "-g", fixed and added "-r"
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- Fixes to the makefile for handling "strip"
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@ -58,6 +59,7 @@
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* Fix "+" parsing bug in date, from "Merle F. McClelland" <mfm@cts.com>.
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-Erik Andersen
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@ -122,6 +122,12 @@
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// at the same time...
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#define BB_FEATURE_USE_PROCFS
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//
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// Enable full regular expressions. This adds about
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// 4k. When this is off, things that would normally
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// use regualr expressions (like grep) will just use
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// normal strings.
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#define BB_FEATURE_FULL_REGULAR_EXPRESSIONS
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//
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// Use termios to manipulate the screen ('more' is prettier with this on)
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#define BB_FEATURE_USE_TERMIOS
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//
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@ -146,6 +152,17 @@
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//Enable init being called as /linuxrc
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//#define BB_FEATURE_LINUXRC
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//
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//Have init enable core dumping for child processed (for debugging only)
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//#define BB_FEATURE_INIT_COREDUMPS
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//
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// Allow init to permenently chroot, and umount the old root fs
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// just like an initrd does. Requires a kernel patch by Werner Almesberger.
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// ftp://icaftp.epfl.ch/pub/people/almesber/misc/umount-root-*.tar.gz
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//#define BB_FEATURE_INIT_CHROOT
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//
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//Make sure nothing is printed to the console on boot
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#define BB_FEATURE_EXTRA_QUIET
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//
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//Simple tail implementation (2k vs 6k for the full one). Still
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//provides 'tail -f' support -- but for only one file at a time.
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#define BB_FEATURE_SIMPLE_TAIL
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@ -156,7 +173,6 @@
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// Enable support for a real /etc/mtab file instead of /proc/mounts
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//#define BB_FEATURE_MOUNT_MTAB_SUPPORT
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//
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//
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// Enable support for remounting filesystems
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#define BB_FEATURE_REMOUNT
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//
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@ -166,25 +182,9 @@
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//// Enable reverse sort
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//#define BB_FEATURE_SORT_REVERSE
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//
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// Allow init to permenently chroot, and umount the old root fs
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// just like an initrd does. Requires a kernel patch by Werner Almesberger.
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// ftp://icaftp.epfl.ch/pub/people/almesber/misc/umount-root-*.tar.gz
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//#define BB_FEATURE_INIT_CHROOT
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//
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//Make sure nothing is printed to the console on boot
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#define BB_FEATURE_EXTRA_QUIET
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//
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// Enable full regular expressions. This adds about
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// 4k. When this is off, things that would normally
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// use regualr expressions (like grep) will just use
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// normal strings.
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#define BB_FEATURE_FULL_REGULAR_EXPRESSIONS
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//
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//
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// Enable command line editing in the shell
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#define BB_FEATURE_SH_COMMAND_EDITING
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//
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//
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//Turn on extra fbset options
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//#define BB_FEATURE_FBSET_FANCY
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//
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10
init.c
10
init.c
@ -55,13 +55,17 @@
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#include <unistd.h>
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#if defined BB_FEATURE_INIT_COREDUMPS
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/*
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* When CORE_ENABLE_FLAG_FILE exists, setrlimit is called before
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* process is spawned to set corelimit to unlimited.
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* When a file named CORE_ENABLE_FLAG_FILE exists, setrlimit is called
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* before processes are spawned to set core file size as unlimited.
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* This is for debugging only. Don't use this is production, unless
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* you want core dumps lying about....
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*/
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#define CORE_ENABLE_FLAG_FILE "/.init_enable_core"
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#include <sys/resource.h>
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#include <sys/time.h>
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#endif
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#ifndef KERNEL_VERSION
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#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
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@ -415,6 +419,7 @@ static pid_t run(char *command, char *terminal, int get_enter)
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cmd[i] = NULL;
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}
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#if defined BB_FEATURE_INIT_COREDUMPS
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{
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struct stat sb;
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if (stat (CORE_ENABLE_FLAG_FILE, &sb) == 0) {
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@ -424,6 +429,7 @@ static pid_t run(char *command, char *terminal, int get_enter)
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setrlimit(RLIMIT_CORE, &limit);
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}
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}
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#endif
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/* Now run it. The new program will take over this PID,
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* so nothing further in init.c should be run. */
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10
init/init.c
10
init/init.c
@ -55,13 +55,17 @@
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#include <unistd.h>
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#if defined BB_FEATURE_INIT_COREDUMPS
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/*
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* When CORE_ENABLE_FLAG_FILE exists, setrlimit is called before
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* process is spawned to set corelimit to unlimited.
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* When a file named CORE_ENABLE_FLAG_FILE exists, setrlimit is called
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* before processes are spawned to set core file size as unlimited.
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* This is for debugging only. Don't use this is production, unless
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* you want core dumps lying about....
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*/
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#define CORE_ENABLE_FLAG_FILE "/.init_enable_core"
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#include <sys/resource.h>
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#include <sys/time.h>
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#endif
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#ifndef KERNEL_VERSION
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#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
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@ -415,6 +419,7 @@ static pid_t run(char *command, char *terminal, int get_enter)
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cmd[i] = NULL;
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}
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#if defined BB_FEATURE_INIT_COREDUMPS
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{
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struct stat sb;
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if (stat (CORE_ENABLE_FLAG_FILE, &sb) == 0) {
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@ -424,6 +429,7 @@ static pid_t run(char *command, char *terminal, int get_enter)
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setrlimit(RLIMIT_CORE, &limit);
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}
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}
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#endif
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/* Now run it. The new program will take over this PID,
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* so nothing further in init.c should be run. */
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