build 32bit .so with -fPIC

[abk.964]

Hi.
I try to build 32bit (i386) shared library with -fPIC option.
Create new project "Library", set target Linux i386, add -fPIC and -Cg to custom options (think it's synonym), pass to linker option --warn-shared-textrel.

Linker say:

Code: [Select]

/usr/bin/ld: //usr/lib/fpc/3.2.2/units/i386-linux/rtl/system.o: warning: relocation in read-only section `.text.n_system_$$_fpsigaction$longint$psigactionrec$psigactionrec$$longint'
/usr/bin/ld: warning: creating a DT_TEXTREL in a shared object

"readelf -d" say

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0x00000016 (TEXTREL)                    0x0
0x0000001e (FLAGS)                      TEXTREL

I use Lazarus 3.99 64bit, FPC 3.2.2, Debian 10 64bit.
32bit FPC runtime builded from sources with default options.

I found Fpsigaction in ossysc.inc. Can`t understand, what a problem with it.

How to build 32bit .so without TEXTREL ?

[abou.almontacir]

I'm also working on enabling PIC for Debian and have similar issue.

[PascalDragon]

32bit FPC runtime builded from sources with default options.

Try to rebuild your 32-bit FPC distribution with OPT=-Cg just to be sure that everything is alright there.

[abk.964]

Use parameter CREATESHARED rebuilding runtime. For example:

Code: Bash  [Select][+][-]

1. make all OS_TARGET=linux CPU_TARGET=i386 CREATESHARED=1
2.  

It turns on -Cg option.

[dbannon]

Despite that warning, it still makes a PIE executable.

My app is built in Debian that way for multiple platforms (except Power64el) for several years and does not trigger the dreaded lintian PIE warning.

Davo