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| author | Kevin Buettner <kevinb@redhat.com> | 2018-07-30 15:35:45 -0700 |
|---|---|---|
| committer | Kevin Buettner <kevinb@redhat.com> | 2018-08-08 08:10:36 -0700 |
| commit | f384a1f025084a4a6370d7ada6dc7198ad3454e4 (patch) | |
| tree | 68ea1461a61a1f519b168b2d50ee1d1989f49c16 | |
| parent | f7309df20c4e787041cedc4a6aced89c15259e54 (diff) | |
| download | gdb-f384a1f025084a4a6370d7ada6dc7198ad3454e4.zip gdb-f384a1f025084a4a6370d7ada6dc7198ad3454e4.tar.gz gdb-f384a1f025084a4a6370d7ada6dc7198ad3454e4.tar.bz2 | |
Add support for DW_OP_GNU_variable_value to readelf
As indicated by the subject, this patch adds support for the DWARF
expression opcode DW_OP_GNU_variable_value to readelf.
It's pretty much a copy/paste of DW_OP_call_ref with the obvious name
changes for the printf statements. The FIXME comment comes from that
copy/paste.
binutils/ChangeLog:
* dwarf.c (decode_location_expresion): Add case for
DW_OP_GNU_variable_value.
| -rw-r--r-- | binutils/ChangeLog | 5 | ||||
| -rw-r--r-- | binutils/dwarf.c | 19 |
2 files changed, 24 insertions, 0 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 9fce7b6..6ed758b 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,8 @@ +2018-08-08 Kevin Buettner <kevinb@redhat.com> + + * dwarf.c (decode_location_expresion): Add case for + DW_OP_GNU_variable_value. + 2018-08-06 Claudiu Zissulescu <claziss@synopsys.com> * readelf.c (display_arc_attribute): Print Tag_ARC_ATR_version. diff --git a/binutils/dwarf.c b/binutils/dwarf.c index 81060bf..ad961b8 100644 --- a/binutils/dwarf.c +++ b/binutils/dwarf.c @@ -1575,6 +1575,25 @@ decode_location_expression (unsigned char * data, data += bytes_read; printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue)); break; + case DW_OP_GNU_variable_value: + /* FIXME: Strictly speaking for 64-bit DWARF3 files + this ought to be an 8-byte wide computation. */ + if (dwarf_version == -1) + { + printf (_("(DW_OP_GNU_variable_value in frame info)")); + /* No way to tell where the next op is, so just bail. */ + return need_frame_base; + } + if (dwarf_version == 2) + { + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); + } + else + { + SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); + } + printf ("DW_OP_GNU_variable_value: <0x%s>", dwarf_vmatoa ("x", uvalue)); + break; /* HP extensions. */ case DW_OP_HP_is_value: |