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Fix register selection in var-access.exp 

The new test var-access.exp causes FAILs on i686.  This is because the
test chooses the wrong name for DWARF register number 1: It uses
"edx" (which corresponds to DWARF register number 2), but should have used
"ecx" instead.

Also, the current logic in var-access.exp does not correctly distinguish
between a 64-bit and a 32-bit program on an x86-64 target.  It uses the
64-bit register names for both.

These problems are fixed.  In order to address the latter, the convenience
macros is_*_target are exploited where appropriate.

gdb/testsuite/ChangeLog:

	* gdb.dwarf2/var-access.exp: Use register name ecx instead of edx
	on 32-bit x86 targets.  Exploit is_*_target macros where
	appropriate.
This commit is contained in:
Andreas Arnez 2017-06-14 14:24:03 +02:00
parent 4c0b797e0d
commit 5524b5250e
2 changed files with 11 additions and 5 deletions
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6
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2017-06-14 Andreas Arnez <arnez@linux.vnet.ibm.com>
* gdb.dwarf2/var-access.exp: Use register name ecx instead of edx
on 32-bit x86 targets. Exploit is_*_target macros where
appropriate.
2017-06-13 Andreas Arnez <arnez@linux.vnet.ibm.com>
* gdb.dwarf2/var-access.exp: Add test for non-byte-aligned

10
gdb/testsuite/gdb.dwarf2/var-access.exp
View File

@ -28,16 +28,16 @@ if {![dwarf2_support]} {
set dwarf_regnum {0 1}
if { [istarget "aarch64*-*-*"] } {
if { [is_aarch64_target] } {
set regname {x0 x1}
} elseif { [istarget "arm*-*-*"]
} elseif { [is_aarch32_target]
|| [istarget "s390*-*-*" ]
|| [istarget "powerpc*-*-*"]
|| [istarget "rs6000*-*-aix*"] } {
set regname {r0 r1}
} elseif { [istarget "i?86-*-*"] } {
set regname {eax edx}
} elseif { [istarget "x86_64-*-*"] } {
} elseif { [is_x86_like_target] } {
set regname {eax ecx}
} elseif { [is_amd64_regs_target] } {
set regname {rax rdx}
} else {
verbose "Skipping tests for accessing DWARF-described variables."