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authorYao Qi <yao.qi@linaro.org>2017-01-25 16:24:44 +0000
committerYao Qi <yao.qi@linaro.org>2017-01-25 16:24:44 +0000
commit5ac95241162bf4729ecaf3c880cdaa846a3aded4 (patch)
tree9b80e933c42503c214029adde4ca6b23fceb90ed /gdb
parenta1aa5e81de977805b16f2b1b9a12027a7f61c20c (diff)
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Handle DW_OP_GNU_implicit_pointer in dwarf assembler
DW_OP_GNU_implicit_pointer refers to a DIE with an offset of different sizes in different dwarf versions. In v2, the size is the pointer size, while in v3 and above, it is the ref_addr size. This patch fixes dwarf assembler to emit the correct size of offset. We've already fixed this size issue in gdb, https://sourceware.org/ml/gdb-patches/2011-09/msg00451.html gdb/testsuite: 2017-01-25 Yao Qi <yao.qi@linaro.org> * lib/dwarf.exp (Dwarf::_location): Handle DW_OP_GNU_implicit_pointer with proper size.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/testsuite/ChangeLog5
-rw-r--r--gdb/testsuite/lib/dwarf.exp7
2 files changed, 11 insertions, 1 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 4d19711..aa272e3 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2017-01-25 Yao Qi <yao.qi@linaro.org>
+
+ * lib/dwarf.exp (Dwarf::_location): Handle
+ DW_OP_GNU_implicit_pointer with proper size.
+
2017-01-20 Luis Machado <lgustavo@codesourcery.com>
* gdb.python/py-xmethods.exp: Fix test names starting with lowercase
diff --git a/gdb/testsuite/lib/dwarf.exp b/gdb/testsuite/lib/dwarf.exp
index 9f5fa6c..03ae637 100644
--- a/gdb/testsuite/lib/dwarf.exp
+++ b/gdb/testsuite/lib/dwarf.exp
@@ -840,6 +840,7 @@ namespace eval Dwarf {
proc _location {body} {
variable _constants
variable _cu_label
+ variable _cu_version
variable _cu_addr_size
variable _cu_offset_size
@@ -913,7 +914,11 @@ namespace eval Dwarf {
# Here label is a section offset.
set label [lindex $line 1]
- _op .${_cu_offset_size}byte $label
+ if { $_cu_version == 2 } {
+ _op .${_cu_addr_size}byte $label
+ } else {
+ _op .${_cu_offset_size}byte $label
+ }
_op .sleb128 [lindex $line 2]
}