Patch Name: PHSS_30215

Patch Description: s700_800 11.22 libunwind Library Cumulative

Creation Date: 04/01/23

Post Date: 04/01/27

Hardware Platforms - OS Releases:
	s700: 11.22
	s800: 11.22

Products: N/A

Filesets:
	OS-Core.CORE2-64SLIB,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP
	OS-Core.CORE2-SHLIBS,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP
	ProgSupport.C2-INC,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP

Automatic Reboot?: No

Status: General Release

Critical:
	No (superseded patches were critical)
	PHSS_28976: MEMORY_LEAK

Category Tags:
	defect_repair enhancement general_release critical
	memory_leak

Path Name: /hp-ux_patches/s700_800/11.X/PHSS_30215

Symptoms:
	PHSS_30215:
	JAGae93989: Unwind library previously did not support
	  exceptions thrown from a signal handler; the application
	  would have been aborted when an thrown exception was
	  not caught before unwinding into a signal handler frame.

	PHSS_28976:
	JAGae49574: Memory leak when handling C++ exceptions.
	JAGae48447: Memory allocation and deallocation issues
		    with unwind library
	JAGae44512: unwind library performance unacceptably slow

Defect Description:
	PHSS_30215:
	JAGae93989: The C++ standard explicitly disallows
	  throwing exceptions from a signal handler, so the
	  runtime support was not designed to support it.

	PHSS_28976:
	JAGae49574: Allocated memory was not being freed when a C++
	  exception handler was called.
	JAGae48447: Memory allocation and deallocation issues
		    with unwind library
	JAGae44512: unwind library performance unacceptably slow

Enhancement:
	Yes
	PHSS_28976:
		This patch delivers (1) a new API,
		_UNW_jmpbufContext(), for initializing an unwind
		context from a jmpbuf that has been previously
		initialized by a call to setjmp();
		(2) a new set of APIs described in uwx(3x) to do
		faster unwinding.
	PHSS_30215:
	JAGae93989: This patch delivers new support for
	  exceptions thrown from a signal handler.

SR:
	8606332874 8606285633 8606284501 8606280536

Patch Files:
	
	OS-Core.CORE2-64SLIB,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	/usr/lib/hpux64/libunwind.so.1

	OS-Core.CORE2-SHLIBS,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	/usr/lib/hpux32/libunwind.so.1

	ProgSupport.C2-INC,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	/usr/include/unwind.h
	/usr/include/uwx.h
	/usr/include/uwx_self.h

what(1) Output:
	
	OS-Core.CORE2-64SLIB,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	/usr/lib/hpux64/libunwind.so.1:
		HP-UX Unwind Library for Itanium(R)-based systems  0
			2-Dec-2003

	OS-Core.CORE2-SHLIBS,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	/usr/lib/hpux32/libunwind.so.1:
		HP-UX Unwind Library for Itanium(R)-based systems  0
			2-Dec-2003

	ProgSupport.C2-INC,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	/usr/include/unwind.h:
		None
	/usr/include/uwx.h:
		None
	/usr/include/uwx_self.h:
		None

cksum(1) Output:
	
	OS-Core.CORE2-64SLIB,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	3921207400 531288 /usr/lib/hpux64/libunwind.so.1

	OS-Core.CORE2-SHLIBS,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	1262565484 501436 /usr/lib/hpux32/libunwind.so.1

	ProgSupport.C2-INC,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	819495338 14006 /usr/include/unwind.h
	2412870092 10862 /usr/include/uwx.h
	438472526 1280 /usr/include/uwx_self.h

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes:
	PHSS_28976 

Equivalent Patches:
	PHSS_30017:
	s700: 11.23
	s800: 11.23

Patch Package Size: 390 KBytes

Installation Instructions:
	Please review all instructions and the Hewlett-Packard
	SupportLine User Guide or your Hewlett-Packard support terms
	and conditions for precautions, scope of license,
	restrictions, and, limitation of liability and warranties,
	before installing this patch.
	------------------------------------------------------------
	1. Back up your system before installing a patch.

	2. Login as root.

	3. Copy the patch to the /tmp directory.

	4. Move to the /tmp directory and unshar the patch:

		cd /tmp
		sh PHSS_30215

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHSS_30215.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHSS_30215.  If you do not wish to retain a
	copy of the original software, include the patch_save_files
	option in the swinstall command above:

		-x patch_save_files=false

	WARNING: If patch_save_files is false when a patch is installed,
		 the patch cannot be deinstalled.  Please be careful
		 when using this feature.

	For future reference, the contents of the PHSS_30215.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHSS_30215.depot

	To put this patch on a magnetic tape and install from the
	tape drive, use the command:

		dd if=/tmp/PHSS_30215.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None