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[gdb/testsuite] Fix base address selection entry encoding in dw2-skip-prologue.S

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A base address selection entry in a location list consist of two (constant or
relocated) address offsets.  The two offsets are the same size as an address
on the target machine.

The test-case gdb.dwarf2/dw2-skip-prologue.S encodes a base address selection
entry using .4byte, which is incorrect for 8-byte pointer size. [ Which
triggers an assert in dwz, see PR dwz/24172. ]

Fix this by using PTRBYTE instead.

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2019-05-14  Tom de Vries  <tdevries@suse.de>

	* gdb.dwarf2/dw2-skip-prologue.S (.debug_loc): Fix base address
	selection entry encoding.
This commit is contained in:
Tom de Vries 2019-05-14 10:10:08 +02:00
parent 3c2fcaf913
commit 2764128dee
2 changed files with 6 additions and 1 deletions
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5
gdb/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2019-05-14 Tom de Vries <tdevries@suse.de>
* gdb.dwarf2/dw2-skip-prologue.S (.debug_loc): Fix base address
selection entry encoding.
2019-05-10 Tom Tromey <tromey@adacore.com>
* gdb.ada/info_exc.exp: Add "complete" test.

2
gdb/testsuite/gdb.dwarf2/dw2-skip-prologue.S
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@ -123,7 +123,7 @@
.section .debug_loc
loclist:
/* Reset the location list base address first. */
.4byte -1, 0
PTRBYTE -1, 0
PTRBYTE func_start, func_end
.2byte 2f-1f