linker error: section .ptext virtual address range overlaps with .note.gnu.build-id about fdpp HOT 14 CLOSED

This means a buggy version of lld.
You need to remove it and then fdpp
will use ld instead.
You can as well report that upstream,
asking them to update.

from fdpp.

Thanks!

from fdpp.

Hi @stsp, I'm on Debian stable - Debian 11.6 - and I'm trying to find a way to make fdpp use a recent lld that disturbs the system as least as possible... in my Debian box I can install lld-13 by just doing "apt-get install lld-13", but I'm not being able an easy way to make lld-13 the default. If I do this - note the step in which a line is changed by hand - then fdpp builds fine:

rm -Rfv /tmp/fdpp/
cd      /tmp/
git clone https://github.com/dosemu2/fdpp.git
cd      /tmp/fdpp/

./configure
#
# (find-fline "/tmp/fdpp/fdpp/clang.mak")
# Now change the line 5 in /tmp/fdpp/fdpp/clang.mak from:
#   LLD = $(shell which ld.lld)
# to:
#   LLD = $(shell which ld.lld-13)
#
make

I couldn't find a way to change the value of LDD by calling configure or make with different command-line parameters, though... am I missing something obvious? Would it be worthwhile to change fdpp a bit to make it easy to select which ld.lld to use?

Thanks in advance!

from fdpp.

Try make CROSS_LD=ld.lld-13

from fdpp.

I also added a change to allow
overriding via env vars, so now
this should also work:
CROSS_LD=ld.lld-13 make

from fdpp.

Thanks!!! =)
My build script now is essentially this,

mkdir   ~/usrc/

rm -Rfv ~/usrc/fdpp/
cd      ~/usrc/
git clone https://github.com/dosemu2/fdpp.git
cd      ~/usrc/fdpp/

export CROSS_LD=ld.lld-13

./configure
make
make deb

The first "make" runs perfectly, but the "make deb" still uses /usr/bin/ld.lld, and fails. Would you like to apply similar fixes to other makefiles and their includes? Thanks in advance! =) =) =)

from fdpp.

There are no includes, so I think
debhelperes reset the environment
perhaps.
Try adding your
export CROSS_LD=ld.lld-13
directly into debian/rules, right after
#!/usr/bin/make -f line.

from fdpp.

Works!!! Many thanks! =)
I had a few problems compiling the debs for dosemu2 and comcom2... but tomorrow I will try some more and I'll report the problems that I can't fix in the dosemu2/comcom2 pages!

from fdpp.

Just wondering, why would you do

make
make deb

These are either-or.
You don't need make before make deb.

from fdpp.

I had a few problems compiling the debs for dosemu2 and comcom2...

comcom32 may be a PITA to
build. Here:
https://github.com/dosemu2/dosemu2/wiki/Building-packages-for-Debian
we describe the trick to simplify
the build (there is no build at all
under that scenario).
I am slowly moving to the 64bit
port of comcom32, but this appears
hellish amount of work (needs to
write tool-chain first).

from fdpp.

Hi! The build instructions in

https://github.com/dosemu2/dosemu2/wiki/Building-packages-for-Debian

worked here (Debian 11), modulo one change and one bug. To make fdpp use ld.ldd-13 I had to do this,

rm -Rfv ~/usrc/fdpp/
mkdir   ~/usrc/fdpp/
cd      ~/usrc/fdpp/
git clone https://github.com/dosemu2/fdpp.git .
mk-build-deps --install --root-cmd sudo --remove

cd      ~/usrc/fdpp/fdpp/
patch clang.mak <<'%%%'
5c5
< LLD ?= $(shell which ld.lld)
---
> LLD ?= $(shell which ld.lld-13)
%%%

cd ~/usrc/fdpp/
make deb

and then the .debs for fdpp, comcom2, and dosemu2, were all built correctly, except for one thing: when I run "dosemu" I get this error:

/tmp(edrx:sc)# dosemu
ERROR: libfdpp.so: cannot open shared object file: No such file or directory
ERROR: can't load fdpp
ERROR: userspace pings are disabled.
	To enable them, do as root:
	echo 0 65535 > /proc/sys/net/ipv4/ping_group_range
ERROR: Bootable drive not found, exiting
/tmp(edrx:sc)# ls -lAF /usr/lib/fdpp/
total 976
-rw-r--r-- 1 root root 998584 Jan 17  2022 libfdpp.so
/tmp(edrx:sc)#

and I haven't found a fix for it yet... =(

from fdpp.

readelf -d /usr/lib/dosemu/libplugin_fdpp.so |grep RUNPATH
This will show where does it
look for libfdpp.so.

from fdpp.

"readelf -d /usr/lib/dosemu/libplugin_fdpp.so | grep RUNPATH" says this,

 0x000000000000001d (RUNPATH)            Library runpath: [/usr/lib/fdpp]

and I also ran this to check if the output of the "ldd"s would have a "not found" at some point...

for i in /usr/lib/dosemu/*.so \
         /usr/lib/fdpp/*.so; do
  echo $i
  ldd $i
done > /tmp/o
grep found /tmp/o

There are no "not found"s there, all files link only to things that exist. If you need to check it, I uploaded my file /tmp/o to: https://0x0.st/ohmO.txt

from fdpp.

I suspect you have another libplugin_fdpp.so,
maybe in /usr/local/lib.
I suspect you didnt pass prefix in your deb
rules, and by default /usr/local is used.
If not - please use strace to find out where
does it look for libs.

from fdpp.