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| author | David Edelsohn <dje.gcc@gmail.com> | 2021-05-11 21:07:19 -0400 |
|---|---|---|
| committer | David Edelsohn <dje.gcc@gmail.com> | 2021-06-29 20:44:12 -0400 |
| commit | 652abe22205f268c90b3b15f28c56c030ef68a34 (patch) | |
| tree | 7e0cdf18eb85947a73d25a84b36df43c42792ffc | |
| parent | 6bc18203dd2a696cdfcd9d45eae3b9cce7b08822 (diff) | |
| download | gcc-652abe22205f268c90b3b15f28c56c030ef68a34.zip gcc-652abe22205f268c90b3b15f28c56c030ef68a34.tar.gz gcc-652abe22205f268c90b3b15f28c56c030ef68a34.tar.bz2 | |
aix: align text CSECTs to at least 32 bytes.
gcc/ChangeLog:
* config/rs6000/rs6000.c (rs6000_xcoff_section_type_flags):
Increase code CSECT alignment to at least 32 bytes.
* config/rs6000/xcoff.h (TEXT_SECTION_ASM_OP): Add 32 byte
alignment designation.
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/xcoff.h | 3 |
2 files changed, 7 insertions, 2 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 2c249e1..075c156 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-3.0-or-later /* Subroutines used for code generation on IBM RS/6000. Copyright (C) 1991-2021 Free Software Foundation, Inc. Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) @@ -21361,8 +21362,11 @@ rs6000_xcoff_section_type_flags (tree decl, const char *name, int reloc) flags |= SECTION_BSS; /* Align to at least UNIT size. */ - if ((flags & SECTION_CODE) != 0 || !decl || !DECL_P (decl)) + if (!decl || !DECL_P (decl)) align = MIN_UNITS_PER_WORD; + /* Align code CSECT to at least 32 bytes. */ + else if ((flags & SECTION_CODE) != 0) + align = MAX ((DECL_ALIGN (decl) / BITS_PER_UNIT), 32); else /* Increase alignment of large objects if not already stricter. */ align = MAX ((DECL_ALIGN (decl) / BITS_PER_UNIT), diff --git a/gcc/config/rs6000/xcoff.h b/gcc/config/rs6000/xcoff.h index 5ba565f..f3546fa 100644 --- a/gcc/config/rs6000/xcoff.h +++ b/gcc/config/rs6000/xcoff.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-3.0-or-later /* Definitions of target machine for GNU compiler, for some generic XCOFF file format Copyright (C) 2001-2021 Free Software Foundation, Inc. @@ -249,7 +250,7 @@ #define DOUBLE_INT_ASM_OP "\t.llong\t" /* Output before instructions. */ -#define TEXT_SECTION_ASM_OP "\t.csect .text[PR]" +#define TEXT_SECTION_ASM_OP "\t.csect .text[PR],5" /* Output before writable data. */ #define DATA_SECTION_ASM_OP \ |