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[binutils-gdb] write_pieced_value: Include transfer size in byte-wise check
- From: Andreas Arnez <arnez at sourceware dot org>
- To: gdb-cvs at sourceware dot org
- Date: 13 Jun 2017 13:22:41 -0000
- Subject: [binutils-gdb] write_pieced_value: Include transfer size in byte-wise check
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f1cc987420d9d2489eb453bd1c87139666cbe7fd
commit f1cc987420d9d2489eb453bd1c87139666cbe7fd
Author: Andreas Arnez <arnez@linux.vnet.ibm.com>
Date: Tue Jun 13 15:20:27 2017 +0200
write_pieced_value: Include transfer size in byte-wise check
In write_pieced_value, when checking whether the data can be transferred
byte-wise, the current logic verifies the source- and destination offsets
to be byte-aligned, but not the transfer size. This is fixed.
gdb/ChangeLog:
* dwarf2loc.c (write_pieced_value): Include transfer size in
byte-wise check.
Diff:
---
gdb/ChangeLog | 5 +++++
gdb/dwarf2loc.c | 5 ++++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 0845c61..ee4c9d8 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
2017-06-13 Andreas Arnez <arnez@linux.vnet.ibm.com>
+ * dwarf2loc.c (write_pieced_value): Include transfer size in
+ byte-wise check.
+
+2017-06-13 Andreas Arnez <arnez@linux.vnet.ibm.com>
+
* dwarf2loc.c (write_pieced_value): Fix copy/paste error in the
calculation of this_size.
diff --git a/gdb/dwarf2loc.c b/gdb/dwarf2loc.c
index 1122c8a..2849dad 100644
--- a/gdb/dwarf2loc.c
+++ b/gdb/dwarf2loc.c
@@ -1986,7 +1986,10 @@ write_pieced_value (struct value *to, struct value *from)
this_size = (this_size_bits + dest_offset_bits % 8 + 7) / 8;
source_offset = source_offset_bits / 8;
dest_offset = dest_offset_bits / 8;
- if (dest_offset_bits % 8 == 0 && source_offset_bits % 8 == 0)
+
+ /* Check whether the data can be transferred byte-wise. */
+ if (dest_offset_bits % 8 == 0 && source_offset_bits % 8 == 0
+ && this_size_bits % 8 == 0)
{
source_buffer = contents + source_offset;
need_bitwise = 0;