Re: ar: error: libclang.a: 'ParseDecl.o': section header table goes past EOF

From: bob prohaska <fbsd_at_www.zefox.net>
Date: Wed, 06 May 2026 16:07:26 UTC
On Wed, May 06, 2026 at 08:54:32AM -0700, Mark Millard wrote:
> On 5/6/26 07:50, bob prohaska wrote:
> > On Tue, May 05, 2026 at 09:59:02PM -0700, Mark Millard wrote:
> >> On 5/5/26 17:32, bob prohaska wrote:
> >>> On Tue, May 05, 2026 at 11:37:12AM -0700, Mark Millard wrote:
> >>>> On 5/5/26 07:48, bob prohaska wrote:
> >>>>> A Pi2B (armv7) is failing buildworld with:
> >>>>>
> >>>>> Building static clang library
> >>>>> ar: error: libclang.a: 'ParseDecl.o': section header table goes past the end of 
> >>>>> the file: e_shoff = 0x131190
> >>
> >> How big is the ParseDecl.o file that gets this report?
> >>
> >> </usr/obj/usr/src/arm.armv7/tmp/obj-tools/lib/clang/libclang/Parse/ParseDecl.o>
> > 
> > # ls -l /usr/obj/usr/src/arm.armv7/tmp/obj-tools/lib/clang/libclang/Parse/ParseDecl.o
> > -rw-r--r--  1 root wheel 393216 May  3 19:15 /usr/obj/usr/src/arm.armv7/tmp/obj-tools/lib/clang/libclang/Parse/ParseDecl.o
> 
> That earlier 0x131190 was a offset in the file. 0x131190 == 1249680 .
> That is a lot bigger than 393216.
> 
> > 
> >>
> >> (Note the tmp/ in that path. Also the <> usage is in hopes of forming
> >> one long line and are not part of the file path.)
> >>
> > Including the < and > in the pathname triggered a syntax error. Likely I 
> > misundersood the tip or I'm using a different shell. 
> 
> Only use the text inside the <>'s.
> 
> The <>'s are an attempt to prevent the message I send from splitting the
> long text into more than one line in the process --even if I do not
> split it myself. Otherwise you might have to splice together the full
> path. Adding spaces just inside the <>'s would not work for the purpose,
> thus the lack of such spaces.
Ahhh, so user escapes, not shell escapes 8-)

> > 
> > 
> >>
> >> Can you publish the content of the file:
> >>
> >> </usr/obj/usr/src/arm.armv7/tmp/obj-tools/lib/clang/libclang/Parse_ParseDecl.o.meta>
> > 
> > The file has been placed at
> > http://www.zefox.net/~fbsd/rpi2/20260506/
> 
> You published ParseDecl.o instead of publishing Parse_ParseDecl.o.meta .
> 
> Parse_ParseDecl.o.meta is a text file produced by use of META_MODE . I
> expect it will include the text of the command that produced
> ParseDecl.o .
> 
> Like earlier: omit the <> characters when extracting the path.
> 
Apologies for the blunder! The correct file is now at:
http://www.zefox.net/~fbsd/rpi2/20260506/Parse_ParseDecl.o.meta

Thanks for writing, and your patience!

bob prohaska