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| author | Doug Rupp <rupp@adacore.com> | 2018-10-11 18:36:34 +0000 |
|---|---|---|
| committer | Olivier Hainque <hainque@gcc.gnu.org> | 2018-10-11 18:36:34 +0000 |
| commit | 13c4e4031a391afb6368d7072217acde07607ff7 (patch) | |
| tree | 102e90536af9004205796fab9ab63310b43e2e84 | |
| parent | 1cc6eecd5d489caa67f04bdd43e5a06c8e3d62d1 (diff) | |
| download | gcc-13c4e4031a391afb6368d7072217acde07607ff7.zip gcc-13c4e4031a391afb6368d7072217acde07607ff7.tar.gz gcc-13c4e4031a391afb6368d7072217acde07607ff7.tar.bz2 | |
leverage linker relaxation on ppc vxworks RTPs
2018-10-11 Doug Rupp <rupp@adacore.com>
Olivier Hainque <hainque@adacore.com>
* config/rs6000/vxworks.h (VXWORKS_RELAX_LINK_SPEC): New macro.
Pass --relax to the linker for RTPs.
(LINK_SPEC): Append VXWORKS_RELAX_LINK_SPEC.
Co-Authored-By: Olivier Hainque <hainque@adacore.com>
From-SVN: r265054
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/rs6000/vxworks.h | 9 |
2 files changed, 15 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 421a4c3..8172fcd 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2018-10-11 Doug Rupp <rupp@adacore.com> + Olivier Hainque <hainque@adacore.com> + + * config/rs6000/vxworks.h (VXWORKS_RELAX_LINK_SPEC): New macro. + Pass --relax to the linker for RTPs. + (LINK_SPEC): Append VXWORKS_RELAX_LINK_SPEC. + 2018-10-11 Andrew Stubbs <ams@codesourcery.com> Jan Hubicka <jh@suse.cz> Martin Jambor <mjambor@suse.cz> diff --git a/gcc/config/rs6000/vxworks.h b/gcc/config/rs6000/vxworks.h index b10955f..d2033f6 100644 --- a/gcc/config/rs6000/vxworks.h +++ b/gcc/config/rs6000/vxworks.h @@ -88,8 +88,15 @@ VXWORKS_ADDITIONAL_CPP_SPEC #undef LIB_SPEC #define LIB_SPEC VXWORKS_LIB_SPEC + +/* For RTPs, leverage linker relaxation. This helps programs referring + to, typically, kernel services too far away for short calls. This is more + precise than -mlongcall and can be overriden with -Wl,--no-relax. */ +#define VXWORKS_RELAX_LINK_SPEC "%{mrtp:--relax}" + #undef LINK_SPEC -#define LINK_SPEC VXWORKS_LINK_SPEC +#define LINK_SPEC VXWORKS_LINK_SPEC " " VXWORKS_RELAX_LINK_SPEC + #undef STARTFILE_SPEC #define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC #undef ENDFILE_SPEC |