43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
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commit 07c9ca3bd8e6f83bcec49c922b52422c538f60f7
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Author: Andreas Arnez <arnez@linux.vnet.ibm.com>
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Date: Tue Jun 13 15:20:28 2017 +0200
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write_pieced_value: Fix buffer offset for memory pieces
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In write_pieced_value, when transferring the data to target memory via a
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buffer, the bit offset within the target value is not reduced to its
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sub-byte fraction before using it as a bit offset into the buffer. This
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is fixed.
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gdb/ChangeLog:
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* dwarf2loc.c (write_pieced_value): In DWARF_VALUE_MEMORY,
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truncate full bytes from dest_offset_bits before using it as an
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offset into the buffer.
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### a/gdb/ChangeLog
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### b/gdb/ChangeLog
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## -1,5 +1,11 @@
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2017-06-13 Andreas Arnez <arnez@linux.vnet.ibm.com>
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+ * dwarf2loc.c (write_pieced_value): In DWARF_VALUE_MEMORY,
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+ truncate full bytes from dest_offset_bits before using it as an
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+ offset into the buffer.
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+
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+2017-06-13 Andreas Arnez <arnez@linux.vnet.ibm.com>
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+
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* dwarf2loc.c (write_pieced_value): Include transfer size in
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byte-wise check.
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--- a/gdb/dwarf2loc.c
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+++ b/gdb/dwarf2loc.c
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@@ -2058,7 +2058,7 @@ write_pieced_value (struct value *to, struct value *from)
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read_memory (p->v.mem.addr + dest_offset, buffer.data (), 1);
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read_memory (p->v.mem.addr + dest_offset + this_size - 1,
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&buffer[this_size - 1], 1);
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- copy_bitwise (buffer.data (), dest_offset_bits,
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+ copy_bitwise (buffer.data (), dest_offset_bits % 8,
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contents, source_offset_bits,
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this_size_bits,
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bits_big_endian);
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