| commit | 5355f9ca7b10183ce06e8a18003ba30f43774858 | |
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | |
| Thu, 6 Oct 2022 15:35:35 +0000 (6 12:35 -0300) | ||
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | |
| Mon, 10 Oct 2022 13:32:28 +0000 (10 10:32 -0300) | ||
| tree | f32e7d1293eb1eaa33267bfe0faed90b67eb990f | treesnapshot (tar.gz zip) |
| parent | c15318bfc5499d835c434a4d98b688aa2d928412 | commitdiff |
elf: Remove -fno-tree-loop-distribute-patterns usage on dl-support
Besides the option being gcc specific, this approach is still fragile
and not future proof since we do not know if this will be the only
optimization option gcc will add that transforms loops to memset
(or any libcall).
This patch adds a new header, dl-symbol-redir-ifunc.h, that can b
used to redirect the compiler generated libcalls to port the generic
memset implementation if required.
Checked on x86_64-linux-gnu and aarch64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Besides the option being gcc specific, this approach is still fragile
and not future proof since we do not know if this will be the only
optimization option gcc will add that transforms loops to memset
(or any libcall).
This patch adds a new header, dl-symbol-redir-ifunc.h, that can b
used to redirect the compiler generated libcalls to port the generic
memset implementation if required.
Checked on x86_64-linux-gnu and aarch64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
| elf/Makefile | diffblobblamehistory | |
| elf/dl-support.c | diffblobblamehistory | |
| sysdeps/aarch64/multiarch/dl-symbol-redir-ifunc.h | [new file with mode: 0644] | blob |
| sysdeps/generic/dl-symbol-redir-ifunc.h | [new file with mode: 0644] | blob |
| sysdeps/i386/i686/multiarch/dl-symbol-redir-ifunc.h | [new file with mode: 0644] | blob |
| sysdeps/powerpc/powerpc64/le/multiarch/dl-symbol-redir-ifunc.h | [new file with mode: 0644] | blob |
| sysdeps/s390/multiarch/dl-symbol-redir-ifunc.h | [new file with mode: 0644] | blob |
| sysdeps/sparc/sparc32/sparcv9/multiarch/dl-symbol-redir-ifunc.h | [new file with mode: 0644] | blob |
| sysdeps/sparc/sparc64/multiarch/dl-symbol-redir-ifunc.h | [new file with mode: 0644] | blob |
| sysdeps/x86_64/multiarch/dl-symbol-redir-ifunc.h | [new file with mode: 0644] | blob |