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2004-07-16 Andrew Cagney <cagney@gnu.org>

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* gdb.base/restore.c: Append "prologue" to comments marking the a
	function's prologue.
	* gdb.base/restore.exp: Update copyright, re-indent.
	(restore_tests): Use gdb_test_multiple.  Add "calleeN calls
	callerN" prefix where needed.  Update patterns that match a
	function's prologue.
This commit is contained in:
Andrew Cagney
2004-07-16 22:21:52 +00:00
parent f263249b3d
commit 029d220040
3 changed files with 43 additions and 27 deletions
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9
gdb/testsuite/ChangeLog
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@ -1,3 +1,12 @@
2004-07-16 Andrew Cagney <cagney@gnu.org>
* gdb.base/restore.c: Append "prologue" to comments marking the a
function's prologue.
* gdb.base/restore.exp: Update copyright, re-indent.
(restore_tests): Use gdb_test_multiple. Add "calleeN calls
callerN" prefix where needed. Update patterns that match a
function's prologue.
2004-07-16 Michael Chastain <mec.gnu@mindspring.com> 2004-07-16 Michael Chastain <mec.gnu@mindspring.com>
* gdb.base/restore.c: Add copyright notice. * gdb.base/restore.c: Add copyright notice.

22
gdb/testsuite/gdb.base/restore.c
View File

@ -46,7 +46,7 @@
" = increment (" previous ");") " = increment (" previous ");")
(if first-end (if first-end
(progn (progn
(insert " /" "* " first-end " *" "/") (insert " /" "* " first-end " prologue *" "/")
(setq first-end nil))) (setq first-end nil)))
(insert "\n") (insert "\n")
(setq previous (local j)) (setq previous (local j))
@ -129,7 +129,7 @@ callee0 (int n)
int int
callee1 (int n) callee1 (int n)
{ {
register int l1 = increment (n); /* callee1 */ register int l1 = increment (n); /* callee1 prologue */
return l1; return l1;
} }
@ -137,7 +137,7 @@ callee1 (int n)
int int
callee2 (int n) callee2 (int n)
{ {
register int l1 = increment (n); /* callee2 */ register int l1 = increment (n); /* callee2 prologue */
register int l2 = increment (l1); register int l2 = increment (l1);
return l1+l2; return l1+l2;
} }
@ -146,7 +146,7 @@ callee2 (int n)
int int
callee3 (int n) callee3 (int n)
{ {
register int l1 = increment (n); /* callee3 */ register int l1 = increment (n); /* callee3 prologue */
register int l2 = increment (l1); register int l2 = increment (l1);
register int l3 = increment (l2); register int l3 = increment (l2);
return l1+l2+l3; return l1+l2+l3;
@ -156,7 +156,7 @@ callee3 (int n)
int int
callee4 (int n) callee4 (int n)
{ {
register int l1 = increment (n); /* callee4 */ register int l1 = increment (n); /* callee4 prologue */
register int l2 = increment (l1); register int l2 = increment (l1);
register int l3 = increment (l2); register int l3 = increment (l2);
register int l4 = increment (l3); register int l4 = increment (l3);
@ -167,7 +167,7 @@ callee4 (int n)
int int
callee5 (int n) callee5 (int n)
{ {
register int l1 = increment (n); /* callee5 */ register int l1 = increment (n); /* callee5 prologue */
register int l2 = increment (l1); register int l2 = increment (l1);
register int l3 = increment (l2); register int l3 = increment (l2);
register int l4 = increment (l3); register int l4 = increment (l3);
@ -178,7 +178,7 @@ callee5 (int n)
int int
caller1 (void) caller1 (void)
{ {
register int l1 = increment (0x7eeb); /* caller1 */ register int l1 = increment (0x7eeb); /* caller1 prologue */
register int n; register int n;
n = callee0 (l1); n = callee0 (l1);
n = callee1 (n + l1); n = callee1 (n + l1);
@ -192,7 +192,7 @@ caller1 (void)
int int
caller2 (void) caller2 (void)
{ {
register int l1 = increment (0x7eeb); /* caller2 */ register int l1 = increment (0x7eeb); /* caller2 prologue */
register int l2 = increment (l1); register int l2 = increment (l1);
register int n; register int n;
n = callee0 (l2); n = callee0 (l2);
@ -207,7 +207,7 @@ caller2 (void)
int int
caller3 (void) caller3 (void)
{ {
register int l1 = increment (0x7eeb); /* caller3 */ register int l1 = increment (0x7eeb); /* caller3 prologue */
register int l2 = increment (l1); register int l2 = increment (l1);
register int l3 = increment (l2); register int l3 = increment (l2);
register int n; register int n;
@ -223,7 +223,7 @@ caller3 (void)
int int
caller4 (void) caller4 (void)
{ {
register int l1 = increment (0x7eeb); /* caller4 */ register int l1 = increment (0x7eeb); /* caller4 prologue */
register int l2 = increment (l1); register int l2 = increment (l1);
register int l3 = increment (l2); register int l3 = increment (l2);
register int l4 = increment (l3); register int l4 = increment (l3);
@ -240,7 +240,7 @@ caller4 (void)
int int
caller5 (void) caller5 (void)
{ {
register int l1 = increment (0x7eeb); /* caller5 */ register int l1 = increment (0x7eeb); /* caller5 prologue */
register int l2 = increment (l1); register int l2 = increment (l1);
register int l3 = increment (l2); register int l3 = increment (l2);
register int l4 = increment (l3); register int l4 = increment (l3);

37
gdb/testsuite/gdb.base/restore.exp
View File

@ -1,4 +1,7 @@
# Copyright 1998, 1999, 2000 Free Software Foundation, Inc. # This testcase is part of GDB, the GNU debugger.
# Copyright 1998, 1999, 2000, 2001, 2002, 2004 Free Software
# Foundation, Inc.
# This program is free software; you can redistribute it and/or modify # This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by # it under the terms of the GNU General Public License as published by
@ -14,9 +17,6 @@
# along with this program; if not, write to the Free Software # along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@prep.ai.mit.edu
# Test GDB's ability to restore saved registers from stack frames # Test GDB's ability to restore saved registers from stack frames
# when using the `return' command. # when using the `return' command.
# #
@ -24,7 +24,7 @@
# fragments borrowed from return.exp. # fragments borrowed from return.exp.
if $tracelevel then { if $tracelevel then {
strace $tracelevel strace $tracelevel
} }
set prms_id 0 set prms_id 0
@ -34,13 +34,15 @@ set testfile "restore"
set srcfile ${testfile}.c set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile} set binfile ${objdir}/${subdir}/${testfile}
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
} }
proc restore_tests { } { proc restore_tests { } {
global gdb_prompt global gdb_prompt
if { ! [ runto driver ] } then { return 0 } if { ! [ runto driver ] } {
return 0
}
set limit 5 set limit 5
@ -48,30 +50,35 @@ proc restore_tests { } {
# call each of the callee functions, # call each of the callee functions,
# force a return from the callee, and # force a return from the callee, and
# make sure that the local variables still have the right values. # make sure that the local variables still have the right values.
for {set c 1} {$c <= $limit} {incr c} { for {set c 1} {$c <= $limit} {incr c} {
# Set a breakpoint at the next caller function. # Set a breakpoint at the next caller function.
gdb_test "tbreak caller$c" "Breakpoint.*\[0-9\]*\\." "tbreak caller$c" gdb_test "tbreak caller$c" "Breakpoint.*\[0-9\]*\\." \
"tbreak caller$c"
# Continue to the next caller function. # Continue to the next caller function.
gdb_test "continue" ".*/\\* caller$c \\*/" "run to caller$c" gdb_test "continue" " caller$c prologue .*" "run to caller$c"
# Do each callee function. # Do each callee function.
for {set e 1} {$e <= $limit} {incr e} { for {set e 1} {$e <= $limit} {incr e} {
gdb_test "tbreak callee$e" "Breakpoint.*\[0-9\]*\\." \ gdb_test "tbreak callee$e" "Breakpoint.*\[0-9\]*\\." \
"tbreak callee$e" "caller$c calls callee$e; tbreak callee"
gdb_test "continue" ".*/\\* callee$e \\*/" "run to callee$e" gdb_test "continue" " callee$e prologue .*/" \
"caller$c calls callee$e; continue to callee"
# Do a forced return from the callee. # Do a forced return from the callee.
send_gdb "return 0\n" set test "caller$c calls callee$e; return callee now"
gdb_expect { gdb_test_multiple "return 0" "$test" {
-re "Make .* return now.*y or n. $" { -re "Make .* return now.*y or n. $" {
send_gdb "y\n" send_gdb "y\n"
exp_continue exp_continue
} }
-re "$gdb_prompt $" { } -re " caller$c .*$gdb_prompt $" {
pass "$test"
}
} }
# Check that the values of the local variables are what # Check that the values of the local variables are what
@ -79,7 +86,7 @@ proc restore_tests { } {
for {set var 1} {$var <= $c} {incr var} { for {set var 1} {$var <= $c} {incr var} {
set expected [expr 0x7eeb + $var] set expected [expr 0x7eeb + $var]
gdb_test "print l$var" " = $expected" \ gdb_test "print l$var" " = $expected" \
"caller$c called callee$e; variable l$var restored to $expected" "caller$c calls callee$e; return restored l$var to $expected"
} }
} }
} }