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[gdb/testsuite] Make gdb.arch/amd64-gs_base.exp unsupported for i386

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With target board unix/-m32 I run into:
...
(gdb) print /x $fs_base^M
$1 = void^M
(gdb) FAIL: gdb.arch/amd64-gs_base.exp: print fs_base
...

The problem is that the fs_base register is not supported for i386.

Fix this by making the test unsupported if fs_base/gs_base don't show up in
info register sys output.

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2020-12-04  Tom de Vries  <tdevries@suse.de>

	PR testsuite/26990
	* gdb.arch/amd64-gs_base.exp: Handle -m32 where fs_base and gs_base
	are unsupported.
This commit is contained in:
Tom de Vries
2020-12-04 13:36:48 +01:00
parent b6a6aa07c5
commit 67748e0f66
2 changed files with 31 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
gdb/testsuite/ChangeLog
View File

@@ -1,3 +1,9 @@
2020-12-04 Tom de Vries <tdevries@suse.de>
PR testsuite/26990
* gdb.arch/amd64-gs_base.exp: Handle -m32 where fs_base and gs_base
are unsupported.
2020-12-04 Tom de Vries <tdevries@suse.de>
* gdb.reverse/insn-reverse.exp: Don't break inside gdb_test_multiple

26
gdb/testsuite/gdb.arch/amd64-gs_base.exp
View File

@@ -30,6 +30,31 @@ if ![runto_main] {
return -1
}
# Test the presence of fs_base and gs_base on the system
# register group and values.
#
set ws "\[\t \]+"
set info_reg_out [multi_line "info register sys" \
"fs_base${ws}$hex${ws}$decimal"\
"gs_base${ws}$hex${ws}$decimal"\
"orig_rax${ws}$hex${ws}\[-\]$decimal" ]
set info_reg_out_m32 [multi_line "info register sys" \
"orig_eax${ws}$hex${ws}\[-\]$decimal" ]
set supported 0
gdb_test_multiple "info register sys" "" {
-re -wrap $info_reg_out {
set supported 1
}
-re -wrap $info_reg_out_m32 {
}
}
if { ! $supported } {
unsupported "target does not support fs_base and gs_base"
return -1
}
gdb_test "print /x \$fs_base" "= $hex" "print fs_base"
gdb_test "print /x \$gs_base" "= $hex" "print gs_base"
@@ -39,7 +64,6 @@ gdb_test "print \$gs_base = 3" "= 3" "set gs_base"
# Test the presence of fs_base and gs_base on the system
# register group and values.
#
set ws "\[\t \]+"
set info_reg_out [multi_line "info register sys" \
"fs_base${ws}0x2${ws}2"\
"gs_base${ws}0x3${ws}3"\