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dwarf.exp: In 64-bit units, emit also abbrev offset as a 64-bit field

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Dwarf::tu and Dwarf::cu allow selection of units with 64-bit offsets
through an option.  When selected, unit size is encoded properly, but
offset to abbreviation unit is still encoded in a 4-byte field.  This
patch fixes the problem.

Reproducer:

Dwarf::assemble "blah.s" {
    tu {is_64 1 version 4 addr_size 8} 0x1122334455667788 the_type {
	type_unit {} { the_type: }
    }

    cu {is_64 1 version 4 addr_size 8} {
	compile_unit {{language @DW_LANG_C}} {}
    }
}

gdb/testsuite:

	* lib/dwarf.exp  (Dwarf::cu, Dwarf::tu): Emit
	${_cu_offset_size} bytes abbrev offset.
This commit is contained in:
Petr Machata 2014-11-17 08:31:47 +08:00 committed by Yao Qi
parent 209fed2dec
commit 41c7760520
2 changed files with 7 additions and 2 deletions
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5
gdb/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2014-11-17 Petr Machata <pmachata@redhat.com>
* lib/dwarf.exp (Dwarf::cu, Dwarf::tu): Emit
${_cu_offset_size} bytes abbrev offset.
2014-11-15 Doug Evans <xdje42@gmail.com>
PR symtab/17559

4
gdb/testsuite/lib/dwarf.exp
View file

@ -954,7 +954,7 @@ namespace eval Dwarf {
}
define_label $start_label
_op .2byte $_cu_version Version
_op .4byte $my_abbrevs Abbrevs
_op .${_cu_offset_size}byte $my_abbrevs Abbrevs
_op .byte $_cu_addr_size "Pointer size"
_defer_output $_abbrev_section {
@ -1047,7 +1047,7 @@ namespace eval Dwarf {
}
define_label $start_label
_op .2byte $_cu_version Version
_op .4byte $my_abbrevs Abbrevs
_op .${_cu_offset_size}byte $my_abbrevs Abbrevs
_op .byte $_cu_addr_size "Pointer size"
_op .8byte $signature Signature
if { $type_label != "" } {