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[patch gas/ld]: Handle cfi generated segments for link-once text segments

Hello,

this patch does some optimization for cfi and eh_frame/debug for use
in link-once segments.

ChangeLog gas/

2011-02-28  Kai Tietz

	* dw2gencfi.c (dwcfi_seg_list): New struct.
	(dwcfi_hash): New static hash variable.
	(get_debugseg_name): New.
	(alloc_debugseg_item): New.
	(make_debug_seg): New.
	(dwcfi_hash_insert): New.
	(dwcfi_hash_find): New.
	(dwcfi_hash_find_or_make): New.
	(fde_entry): New cseg member.
	(alloc_fde_entry): Initialize cseg member.
	(dot_cfi_sections): Compare for beginning of
	section names via strncmp.
	(get_cfi_seg): New.
	(cfi_finish): Treat link-once sections.
	* ehopt.c (get_cie_info): Use strncmp for
	section name matching.
	(heck_eh_frame): Likewise.

ChangeLog ld/

2011-02-28  Kai Tietz

	* scripttempl/alphavms.sc: Handle .eh_frame($|.)* sections.
	* scripttempl/armbpabi.sc: Likewise.
	* scripttempl/avr.sc: Likewise.
	* scripttempl/crisaout.sc: Likewise.
	* scripttempl/elf.sc: Likewise.
	* scripttempl/elf32cr16.sc: Likewise.
	* scripttempl/elf32crx.sc: Likewise.
	* scripttempl/elf32msp430.sc: Likewise.
	* scripttempl/elf32msp430_3.sc: Likewise.
	* scripttempl/elf32sh-symbian.sc: Likewise.
	* scripttempl/elf64hppa.sc: Likewise.
	* scripttempl/elf_chaos.sc: Likewise.
	* scripttempl/elfd10v.sc: Likewise.
	* scripttempl/elfd30v.sc: Likewise.
	* scripttempl/elfi370.sc: Likewise.
	* scripttempl/elfm68hc11.sc: Likewise.
	* scripttempl/elfm68hc12.sc: Likewise.
	* scripttempl/elfmicroblaze.sc: Likewise.
	* scripttempl/elfxtensa.sc: Likewise.
	* scripttempl/epocpe.sc: Likewise.
	* scripttempl/i386beos.sc: Likewise.
	* scripttempl/i386go32.sc: Likewise.
	* scripttempl/ip2k.sc: Likewise.
	* scripttempl/iq2000.sc: Likewise.
	* scripttempl/mcorepe.sc: Likewise.
	* scripttempl/mep.sc: Likewise.
	* scripttempl/mmo.sc: Likewise.
	* scripttempl/pe.sc: Likewise.
	* scripttempl/pep.sc: Likewise.
	* scripttempl/v850.sc: Likewise.
	* scripttempl/xstormy16.sc: Likewise.

Tested for x86_64-w64-mingw32, i686-pc-cygwin, and
x86_64-pc-linux-gnu. Ok for apply?

Regards,
Kai

Attachment: cfi_lonce.txt
Description: Text document

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