Matthew Dillon fa7dd9c5bc Change the way ELF coredumps are handled. Instead of unconditionally ...

skipping read-only pages, which can result in valuable non-text-related
data not getting dumped, the ELF loader and the dynamic loader now mark
read-only text pages NOCORE and the coredump code only checks (primarily) for
complete inaccessibility of the page or NOCORE being set.

Certain applications which map large amounts of read-only data will
produce much larger cores.  A new sysctl has been added,
debug.elf_legacy_coredump, which will revert to the old behavior.

This commit represents collaborative work by all parties involved.
The PR contains a program demonstrating the problem.

PR:		kern/45994
Submitted by:	"Peter Edwards" <pmedwards@eircom.net>, Archie Cobbs <archie@dellroad.org>
Reviewed by:	jdp, dillon
MFC after:	7 days

2002-12-16 19:24:43 +00:00

..

alpha

MFi386 revisions 1.375 and 1.376

2002-12-14 22:25:35 +00:00

amd64

Add the trm(4) driver.

2002-12-16 18:47:37 +00:00

arm

Add standards visibility conditionals. Change any uses of sigset_t to

2002-10-13 00:31:46 +00:00

boot

Remove unneeded casts. Add others to make WARNS=5 happy.

2002-12-15 02:15:19 +00:00

cam

The HP DAT 40 tape drive should be able to handle variable block sizes.

2002-12-16 17:40:17 +00:00

coda

Back our kernel support for reliable signal queues.

2002-10-01 17:15:53 +00:00

compat

Regen: swapoff

2002-12-16 00:49:36 +00:00

conf

Move the amd(4) driver to it's own directory in preparation for it growing

2002-12-13 22:59:18 +00:00

contrib

Resolve conflicts arising from the ACPI CA 20021118 import.

2002-11-27 18:09:20 +00:00

crypto

Make this compilable from userland as well.

2002-11-01 08:56:39 +00:00

ddb

- Rename the DDB specific %z printf format to %y.

2002-10-25 19:41:32 +00:00

dev

Ignore IEEE1284 descriptors when looking for bidirectional mode. We don't

2002-12-16 14:22:59 +00:00

fs

Remove redundant check for negative or zero v_usecount; vrele() already

2002-12-15 04:32:41 +00:00

geom

Add a couple of KASSERTS, just in case.

2002-12-13 22:04:45 +00:00

gnu

MFufs 1.33:

2002-10-18 21:41:41 +00:00

i4b

network interface and link layer changes:

2002-11-15 00:00:15 +00:00

i386

Add the trm(4) driver.

2002-12-16 18:47:37 +00:00

ia64

Regen: swapoff

2002-12-16 00:49:36 +00:00

isa

Use the correct value when writing the Day Of Week byte in the CMOS.

2002-12-04 13:46:49 +00:00

isofs/cd9660

Unbreak MNT_UPDATE when running with cd as root. Detect mountroot by

2002-11-02 20:16:55 +00:00

kern

Change the way ELF coredumps are handled. Instead of unconditionally

2002-12-16 19:24:43 +00:00

libkern

Fix instances of macros with improperly parenthasized arguments.

2002-11-09 12:55:07 +00:00

modules

libmchain no longer exports m_fixhdr(); remove it from EXPORT_SYMS.

2002-12-14 00:01:51 +00:00

net

MFS: recognize gre packets used in the WCCP protocol.

2002-12-07 14:22:05 +00:00

netatalk

Add more ethernet types and move AppleTalk types into proper location.

2002-09-06 17:02:29 +00:00

netatm

- Change the ATM stack functions to use intptr_t instead of int for opaque

2002-11-08 18:27:30 +00:00

netgraph

Fix two bugs:

2002-12-14 00:56:07 +00:00

netinet

o Trim EOL whitespaces.

2002-12-15 10:24:36 +00:00

netinet6

fixed a bug that IPv6 multicast packet is not forwarded if its packet size is equal to the outgoing interface's MTU

2002-12-16 01:41:07 +00:00

netipsec

FAST_IPSEC fixups:

2002-11-08 23:37:50 +00:00

netipx

Fix a sizeof(int) != sizeof(void *) warning.

2002-11-08 21:16:27 +00:00

netkey

…

netnatm

Be consistent about functions being static.

2002-10-16 09:19:17 +00:00

netncp

- Change mb_copy_t to take a size_t as the length argument instead of an

2002-11-08 21:26:32 +00:00

netns

Use m_length() instead of home-rolled versions.

2002-09-18 19:44:14 +00:00

netsmb

Remove the hto(be|le)[slq] and (be|le)toh[slq] macros defined in

2002-12-16 16:20:06 +00:00

nfs

Change iov_base's type from char *' to the standard void *'. All

2002-10-11 14:58:34 +00:00

nfsclient

reapply 1.26 through 1.28.

2002-11-20 15:21:06 +00:00

nfsserver

In the NFSv3 `fsinfo' procedure reply, don't claim that we support

2002-12-05 16:58:11 +00:00

opencrypto

correct minor # in make_dev call

2002-11-08 23:07:41 +00:00

pc98

unifdef -DPC98 -U__alpha__

2002-12-15 22:15:20 +00:00

pccard

MFp4:

2002-11-27 06:04:49 +00:00

pci

Move the amd(4) driver to it's own directory in preparation for it growing

2002-12-13 22:59:18 +00:00

posix4

Rework the sysconf(3) interaction with aio:

2002-11-17 04:15:34 +00:00

powerpc

Unbreak the KSE code. Keep track of zobie threads using the Per-CPU storage

2002-12-10 02:33:45 +00:00

rpc

…

security

SCARGS removal take II.

2002-12-14 01:56:26 +00:00

sparc64

Unbreak the KSE code. Keep track of zobie threads using the Per-CPU storage

2002-12-10 02:33:45 +00:00

sys

Remove the hto(be|le)[slq] and (be|le)toh[slq] macros defined in

2002-12-16 16:20:06 +00:00

tools

- Move ASSERT_VOP_*LOCK* functionality into functions in vfs_subr.c

2002-09-26 04:48:44 +00:00

ufs

Update to previous change (1.54) to use an approperly wide inode field

2002-12-15 19:25:59 +00:00

vm

Change the way ELF coredumps are handled. Instead of unconditionally

2002-12-16 19:24:43 +00:00

Makefile

…