Bug 2243

Summary:	[tracker] fcore: standalone program for extracing a core file
Product:	frysk	Reporter:	Andrew Cagney <cagney>
Component:	general	Assignee:	Phil Muldoon <pmuldoon>
Status:	NEW ---
Severity:	normal	CC:	qiyaoltc, woodzltc, zhengyo
Priority:	P3
Version:	unspecified
Target Milestone:	---
Host:		Target:
Build:		Last reconfirmed:
Bug Depends on:	3330, 3752, 3841, 5773, 5820, 5967, 3370, 3371, 3373, 3374, 3388, 3408, 3481, 3647, 3650, 3651, 3667, 3697, 3703, 3727, 4004, 4316, 4679, 4967, 5095, 5177, 5211, 5683
Bug Blocks:	1601

Description Andrew Cagney 2006-01-31 17:39:48 UTC

fcore <pid>
Would like, all the other variants, extract a core file from a running process.

Comment 1 Wu Zhou 2006-09-28 15:48:42 UTC

just like gcore does, right?  That is interesting.

Comment 2 Wu Zhou 2006-09-28 15:55:53 UTC

*** Bug 3075 has been marked as a duplicate of this bug. ***

Comment 3 Phil Muldoon 2006-10-13 02:33:40 UTC

2006-10-11  Phil Muldoon  <pmuldoon@redhat.com>
	
	* cni/Elf.cxx: (elf_begin): Check args to allow writing to
	elf files.
	(elf_get_last_error_msg): New.
	(elf_get_last_error_no): New.
	(elf_updatehdr): New.
	(elf_init_core_header): New. Temporary.
	(elf_updatephdr): New.
	
	* Elf.java (Elf): Add a boolean constructor switch
	for write/read.
	(updateEHeader): New. Write Elf header back to native
	structure.
	(initializeCoreHeader): Temporary. Convienience function.
	(updatePHeader): New. Write the program segment back to native
	structure.
	(getLastErrorMsg): New. Get the error message corresponding to
	entry below.
	(getLastErrorNo): New. Get the error number set if the last
	elf function failed.

2006-10-12  Phil Muldoon  <pmuldoon@redhat.com>
	
	* FCore.java: Added. Initial, experimental and incomplete utility to
	dump process core in frysk.

Comment 4 Phil Muldoon 2006-10-15 22:00:56 UTC

2006-10-15  Phil Muldoon  <pmuldoon@redhat.com>
    
    * frysk/util/FCore.java (write_elf_file): Rewritten with these changes:
    - Build elf header manually with full complement of data.
    - Build string table section/section header and update to disk.
    - (Still) Ugly arch test hack.
    * frysk/util/FCore.java (FCore.MapsCounter): Renamed.
    * frysk/util/FCore.java (FCore.CoreMapsBuilder): Renamed.
    (buildMap):Rewritten with these changes:
    - build section headers
    - define section headers in concert with program headers.
    - build section from header, create contextual Elf_Data class, and
    byte copy maps data.



2006-10-15  Phil Muldoon  <pmuldoon@redhat.com>
    
    * Elf.java (getElfVersion): New function.
    (initializeCoreHeader): Remove. Deprecated.
    * ElfData.java (setBuffer): New function. Set elf buffer.
    (setType): New.
    (setSize): New.
    (setOffset): New.
    * ElfEHeader.java: Added Data, Class and Type constants.
    * ElfPHeader.java : Added Type constants.
    * ElfSection (update):  New Function. Update class
    back to native elf header.
    * ElfSectionHeader.java: Changed constructor access to public.
    * ElfSectionHeaderTypes.java : New.
    
    * cni/Elf.cxx (elf_init_core_header): Removed. Deprecated.
    * cni/ElfData.cxx (elf_data_set_buff): New function.
    (elf_data_set_type): Ditto.
    (elf_data_set_version): Ditto.
    (elf_data_set_size): Ditto.
    (elf_data_set_off): Ditto.
    (elf_data_set_align): Ditto.
    * cni/ElfSection.cxx:
    (ElfSection): Check if ehdr->e_shstrndx exists before
    attempting to calculate name from string table.
    (elf_updateshdr): New.

Comment 5 Andrew Cagney 2006-10-18 18:26:00 UTC

Leave in new/assigned state until the command is mostly there, after that bug
can be SUSPENDED and additional problems hung off of this bug.