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Top Forums UNIX for Advanced & Expert Users Unable to generate thread dump Post 303046089 by jim mcnamara on Thursday 23rd of April 2020 10:45:41 AM
Old 04-23-2020
Collect Core Dumps
Shows how to locate core files. It looks to me like you do not have any existing core dumps -- I was not sure of your platform, looks like Solaris.
The article has a branchpoint set of links to platform specific information.

Plus I do not think version 6 of java is supported any longer. So getting Oracle help may not exist.

If anyone else knows more, please correct me.

You do know that sending the SIGSEGV signal to a given process (as root) will force a dump. Not a good idea in a production environment.

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elfdump(1)							   User Commands							elfdump(1)

elfdump - dumps selected parts of an object file SYNOPSIS
elfdump [-cCdegGhHiklmnprsuvy] [-N name] [-w file] filename... DESCRIPTION
The elfdump utility symbolically dumps selected parts of the specified object file(s). The options allow specific portions of the file to be displayed. The elfdump utility is similar in function to the dump(1) utility. The dump utility offers an older and less user-friendly interface than elfdump, although dump might be more appropriate for certain uses such as in shell scripts. Archive files, produced by ar(1), can also be inspected with elfdump. In this case, each object within the archive is processed using the options supplied. For a complete description of the displayed information, refer to the Linker and Libraries Guide. OPTIONS
The following options are supported: -c Dumps section header information. -C Demangles C++ symbol names. -d Dumps the contents of the .dynamic section. -e Dumps the ELF header. -g Dumps the contents of the .group section. -G Dumps the contents of the .got section. -h Dumps the contents of the .hash section. -H Dumps the contents of the .SUNW_cap hardware and software capabilities section. -i Dumps the contents of the .interp section. -k Calculates the ELF checksum. See gelf_checksum(3ELF). -l Displays long section names without truncation. -m Dumps the contents of the .SUNW_move section. -n Dumps the contents of the .note section. -N name Qualifies an option with a specific name. For example, in a file that contains more than one symbol table, the .dynsym ta- ble can be displayed using: example% elfdump -s -N .dynsym filename -p Dumps the program headers. -r Dumps the contents of the .rel[a] relocation sections. -s Dumps the contents of the .dynsym and .symtab symbol table sections. For archives, the archive symbol table is also dumped. Individual sections can be specified with the -N option. An archive symbol table can be specified using the special section name -N ARSYM. In the case of core files, the shndx field will have the value "unknown" since the field does not contain the valid values. In addition to the standard symbol table information, the version definition index of the symbol is also provided under the ver heading. -u Dumps the contents of a frame unwind. -v Dumps the contents of the .SUNW_version version sections. -w file Writes the contents of a section that is specified with the -N option, to the named file. For example, extracting the .text section of a file can be carried out with: example% elfdump -w text.out -N .text filename -y Dumps the contents of the .SUNW_syminfo section. OPERANDS
The following operand is supported: filename The name of the specified object file. FILES
liblddbg.so linker debugging library ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWbtool | +-----------------------------+-----------------------------+ |Interface Stability |Stable | +-----------------------------+-----------------------------+ SEE ALSO
ar(1), dump(1), nm(1), pvs(1), elf(3ELF), attributes(5) Linker and Libraries Guide SunOS 5.10 4 Oct 2004 elfdump(1)

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