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| author | Eric Botcazou <ebotcazou@adacore.com> | 2018-12-11 15:03:29 +0000 |
|---|---|---|
| committer | Olivier Hainque <hainque@gcc.gnu.org> | 2018-12-11 15:03:29 +0000 |
| commit | f9d4d3cf937b5a94d461a51799018dfb33262650 (patch) | |
| tree | ca0e23df3d60b8b13277c05133a80e7c6c2f5501 | |
| parent | 61d1d9a664851d5004d8238c996d0f42768c0562 (diff) | |
| download | gcc-f9d4d3cf937b5a94d461a51799018dfb33262650.zip gcc-f9d4d3cf937b5a94d461a51799018dfb33262650.tar.gz gcc-f9d4d3cf937b5a94d461a51799018dfb33262650.tar.bz2 | |
Fix stack offsets and alloca alignments on ppc-vxworks
* config/rs6000/vxworks.h (RS6000_STARTING_FRAME_OFFSET): Define,
accounting for STACK_BOUNDARY 128 regardless of TARGET_ALTIVEC/VSX.
(STACK_DYNAMIC_OFFSET): Likewise.
From-SVN: r267024
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/vxworks.h | 13 |
2 files changed, 18 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 31cafdca..99ba8bd 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-12-11 Eric Botcazou <botcazou@adacore.com> + + * config/rs6000/vxworks.h (RS6000_STARTING_FRAME_OFFSET): Define, + accounting for STACK_BOUNDARY 128. + (STACK_DYNAMIC_OFFSET): Likewise. + 2018-12-11 Jakub Jelinek <jakub@redhat.com> PR target/88425 diff --git a/gcc/config/rs6000/vxworks.h b/gcc/config/rs6000/vxworks.h index d2033f6..4968643 100644 --- a/gcc/config/rs6000/vxworks.h +++ b/gcc/config/rs6000/vxworks.h @@ -116,7 +116,7 @@ VXWORKS_ADDITIONAL_CPP_SPEC #undef SDATA_DEFAULT_SIZE #define SDATA_DEFAULT_SIZE (TARGET_VXWORKS_RTP ? 8 : 0) -/* Enforce 16bytes alignment for the stack pointer, to permit general +/* Enforce 16-byte alignment for the stack pointer, to permit general compliance with e.g. Altivec instructions requirements. Make sure this isn't overruled by the EABI constraints. */ @@ -128,6 +128,17 @@ VXWORKS_ADDITIONAL_CPP_SPEC #undef ABI_STACK_BOUNDARY +#undef RS6000_STARTING_FRAME_OFFSET +#define RS6000_STARTING_FRAME_OFFSET \ + (cfun->calls_alloca \ + ? RS6000_ALIGN (crtl->outgoing_args_size + RS6000_SAVE_AREA, 16) \ + : (RS6000_ALIGN (crtl->outgoing_args_size, 16) + RS6000_SAVE_AREA)) + +#undef STACK_DYNAMIC_OFFSET +#define STACK_DYNAMIC_OFFSET(FUNDECL) \ + RS6000_ALIGN (crtl->outgoing_args_size.to_constant () \ + + STACK_POINTER_OFFSET, 16) + #undef SUBSUBTARGET_OVERRIDE_OPTIONS #define SUBSUBTARGET_OVERRIDE_OPTIONS \ do { \ |