Date: Thu, 30 Jan 2020 00:35:52 +0300 From: Андрей Аладьев <aladjev.andrew@...il.com> To: musl@...ts.openwall.com Subject: Re: Static linking is broken after creation of DT_TEXTREL segment "readelf -d main | grep TEXTREL" returns the same text on both musl and glibc containers: 0x0000000000000016 (TEXTREL) 0x0 0x000000000000001e (FLAGS) TEXTREL "gcc -no-pie" is another workaround for musl container like Rich said. But I think that 'set(CMAKE_EXE_LINKER_FLAGS "-static")' will be best cross platform solution. As I know "-static" implies "no-pie". > i'm also surprised that it was only a warning, i think gcc default pie toolchain passes -z text nowadays exactly to make this a link time failure. this is probably a gentoo toolchain bug. What do you mean "-z text"? We can report improvement for gentoo. чт, 30 янв. 2020 г. в 00:10, Szabolcs Nagy <nsz@...t70.net>: > * Rich Felker <dalias@...c.org> [2020-01-29 15:53:30 -0500]: > > On Wed, Jan 29, 2020 at 09:41:46PM +0300, Андрей Аладьев wrote: > > > So I think that bug is inside musl itself. Glibc container is the same > > > situation works fine. I see no way to create a workaround for this > issue. > > > > musl only has limited support for TEXTRELs as a legacy feature, and > > only on some archs. It does not support them in PIE executables or > > other "new settings". > > i would like to see why this works on glibc. > > glibc can process some text relocs but even then > the elf image will not be shared when multiple > instances of the same binary are executed > potentially wasting a lot of ram and icache. > > so i don't think the glibc behaviour is desirable. > > if the glibc binary does not have textrel (it can > be checked using readelf -d binary) it would be > nice to know why. > > i'm also surprised that it was only a warning, > i think gcc default pie toolchain passes -z text > nowadays exactly to make this a link time failure. > this is probably a gentoo toolchain bug. > Content of type "text/html" skipped
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