Hi Rod, It looks like SHF_EXCLUDE is exactly what I am looking for. How useful is it in your experiences?
Thanks. H.J. [EMAIL PROTECTED] >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >Behalf Of Rod Evans >Sent: Tuesday, January 09, 2007 2:15 PM >To: [EMAIL PROTECTED] >Cc: gcc@gcc.gnu.org; [EMAIL PROTECTED] >Subject: Re: RFC: Mark a section to be discarded for DSO and executable > > >H. J. Lu wrote: >> With LTO, an object file may contain sections with IL, which >> can be discarded when building DSO and executable. Currently we can't >> mark such sections with gABI. With GNU linker, we can use a >> linker script to discard such sections. But it will be more generic >> to make a section to be discarded for DSO and executable in gABI. >> In that case, we don't need a special linker script to discard >> such sections. Something like >> >> #define SHF_DISCARD 0x800 >> >> would work. > >We invented: > >#define SHF_EXCLUDE 0x80000000 > >a long time ago, which is applied to some sections within relocatable >objects. Sections tagged with this flag are removed from any final >object (executables of .so's). > >This probably should have followed a SHF_SUNW_ conversion, but this >was invented long before we thought about OS specific flags. > > > > SHF_EXCLUDE > > This section is excluded from input to the link-edit of an executable > or shared object. This flag is ignored if the SHF_ALLOC flag is also > set, or if relocations exist against the section. > >-- > >Rod. > >--~--~---------~--~----~------------~-------~--~----~ > You received this message because you are subscribed to the Google Groups >"Generic System V Application Binary Interface" group. >To post to this group, send email to [EMAIL PROTECTED] >To unsubscribe from this group, send email to generic-abi- >[EMAIL PROTECTED] >For more options, visit this group at >http://groups.google.com/group/generic-abi?hl=en >-~----------~----~----~----~------~----~------~--~---
