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Subject: [Bug dynamic-link/30007] rfe: dlopen to specified address
Date: Fri, 14 Apr 2023 19:09:55 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D30007

--- Comment #35 from Stas Sergeev <stsp at users dot sourceforge.net> ---
Created attachment 14827
  --> https://sourceware.org/bugzilla/attachment.cgi?id=3D14827&action=3Ded=
it
demo diff

I am putting the new dlmem() demonstration
here, because unfortunately the onslaught
continues:
https://sourceware.org/pipermail/libc-alpha/2023-April/147254.html

Demo shows this:

$ cat tst-dlmem-extfns.out=20

before dlmem
7f5210ca8000-7f5210cad000 r--p 00000000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so

after dlmem
7f5210ca3000-7f5210ca4000 r--p 00000000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so
7f5210ca4000-7f5210ca5000 r-xp 00001000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so
7f5210ca5000-7f5210ca6000 r--p 00002000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so
7f5210ca6000-7f5210ca7000 r--p 00002000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so
7f5210ca7000-7f5210ca8000 rw-p 00003000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so
7f5210ca8000-7f5210cad000 r--p 00000000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so

post fdlopen
7f5210ca3000-7f5210ca4000 r--p 00000000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so
7f5210ca4000-7f5210ca5000 r-xp 00001000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so
7f5210ca5000-7f5210ca6000 r--p 00002000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so
7f5210ca6000-7f5210ca7000 r--p 00002000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so
7f5210ca7000-7f5210ca8000 rw-p 00003000 00:29 18840304=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
/home/stas/src/glibc-dlmem/build/dlfcn/glreflib1.so


When nothing can be changed, at least the
truth must be made as visible as possible.

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