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* [gcc r12-3005] libiberty, Darwin : Fix simple-object LTO table for cross-endian case.
@ 2021-08-18 18:34 Iain D Sandoe
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From: Iain D Sandoe @ 2021-08-18 18:34 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:220c410162ebece4fffa2912ed79e348d3731d77
commit r12-3005-g220c410162ebece4fffa2912ed79e348d3731d77
Author: Iain Sandoe <iain@sandoe.co.uk>
Date: Fri Apr 9 13:40:11 2021 +0100
libiberty, Darwin : Fix simple-object LTO table for cross-endian case.
We encapsulate streamed IR in three special sections with a table
that describes their entries. The table is expected to be written
with native endianness for the target, but for cross-endian cross-
compilation the swapping was omitted. Fixed thus.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
libiberty/ChangeLog:
* simple-object-mach-o.c (simple_object_mach_o_write_segment):
Arrange to swap the LTO index tables where needed.
Diff:
---
libiberty/simple-object-mach-o.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libiberty/simple-object-mach-o.c b/libiberty/simple-object-mach-o.c
index aa5e0952faf..72b69d19c21 100644
--- a/libiberty/simple-object-mach-o.c
+++ b/libiberty/simple-object-mach-o.c
@@ -1225,6 +1225,11 @@ simple_object_mach_o_write_segment (simple_object_write *sobj, int descriptor,
index[4 * i] -= index[0];
index[0] = 0;
+ /* Swap the indices, if required. */
+
+ for (i = 0; i < (nsects_in * 4); ++i)
+ set_32 (&index[i], index[i]);
+
sechdr_offset += sechdrsize;
/* Write out the section names.
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2021-08-18 18:34 [gcc r12-3005] libiberty, Darwin : Fix simple-object LTO table for cross-endian case Iain D Sandoe
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