1# Copyright (C) 2011-2017 Free Software Foundation, Inc. 2 3# This program is free software; you can redistribute it and/or modify 4# it under the terms of the GNU General Public License as published by 5# the Free Software Foundation; either version 3 of the License, or 6# (at your option) any later version. 7# 8# This program is distributed in the hope that it will be useful, 9# but WITHOUT ANY WARRANTY; without even the implied warranty of 10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11# GNU General Public License for more details. 12# 13# You should have received a copy of the GNU General Public License 14# along with this program. If not, see <http://www.gnu.org/licenses/>. 15 16standard_testfile .s 17set opts {} 18 19if [info exists COMPILE] { 20 # make check RUNTESTFLAGS="gdb.arch/amd64-entry-value.exp COMPILE=1" 21 set srcfile ${testfile}.cc 22 lappend opts debug optimize=-O2 23} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } { 24 verbose "Skipping amd64-entry-value." 25 return 26} 27 28if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} $opts] } { 29 return -1 30} 31 32if ![runto_main] { 33 return -1 34} 35 36gdb_breakpoint "breakhere" 37gdb_breakpoint "breakhere_locexpr" 38gdb_breakpoint "stacktest" 39gdb_breakpoint "breakhere_stacktest" 40gdb_breakpoint "different" 41gdb_breakpoint "breakhere_different" 42gdb_breakpoint "breakhere_validity" 43gdb_breakpoint "breakhere_invalid" 44gdb_breakpoint "reference" 45gdb_breakpoint "breakhere_reference" 46 47 48# Test @entry values for register passed parameters. 49 50gdb_continue_to_breakpoint "entry: breakhere" 51 52gdb_test "bt" "^bt\r\n#0 +d *\\(i=31, i@entry=30, j=31\\.5, j@entry=30\\.5\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main .*" \ 53 "entry: bt" 54gdb_test "p i" " = 31" "entry: p i" 55gdb_test "p i@entry" " = 30" "entry: p i@entry" 56gdb_test "p j" { = 31\.5} "entry: p j" 57gdb_test "p j@entry" { = 30\.5} "entry: p j@entry" 58 59 60# Test @entry values when parameter in function is locexpr (and not loclist). 61 62gdb_continue_to_breakpoint "entry_locexpr: breakhere_locexpr" 63gdb_test "p i" " = 30" "entry_locexpr: p i" 64gdb_test_no_output "set variable i = 0" "entry_locexpr: set variable i = 0" 65gdb_test "bt" "^bt\r\n#0 +locexpr *\\(i=0, i@entry=30\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main .*" \ 66 "entry_locexpr: bt" 67 68 69# Test @entry values for stack passed parameters. 70 71gdb_continue_to_breakpoint "entry_stack: stacktest" 72 73gdb_test "bt" "^bt\r\n#0 +stacktest *\\(r1=r1@entry=1, r2=r2@entry=2, \[^\r\n\]+, s1=s1@entry=11, s2=s2@entry=12, \[^\r\n\]+, d9=d9@entry=11\\.5, da=da@entry=12\\.5\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main .*" \ 74 "entry_stack: bt at entry" 75 76gdb_continue_to_breakpoint "entry_stack: breakhere_stacktest" 77 78gdb_test "bt" "^bt\r\n#0 +stacktest *\\(r1=r1@entry=1, r2=r2@entry=2, \[^\r\n\]+, s1=3, s1@entry=11, s2=4, s2@entry=12, \[^\r\n\]+, d9=3\\.5, d9@entry=11\\.5, da=4\\.5, da@entry=12\\.5\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main .*" \ 79 "entry_stack: bt" 80 81gdb_test "p s1" " = 3" "entry_stack: p s1" 82gdb_test "p s1@entry" " = 11" "entry_stack: p s1@entry" 83gdb_test "p s2" " = 4" "entry_stack: p s2" 84gdb_test "p s2@entry" " = 12" "entry_stack: p s2@entry" 85gdb_test "p d9" " = 3\\.5" "entry_stack: p d9" 86gdb_test "p d9@entry" " = 11\\.5" "entry_stack: p d9@entry" 87gdb_test "p da" " = 4\\.5" "entry_stack: p da" 88gdb_test "p da@entry" " = 12\\.5" "entry_stack: p da@entry" 89 90 91# Test various kinds of `set print entry-values'. 92 93gdb_continue_to_breakpoint "entry_equal: breakhere" 94 95gdb_test_no_output "set print entry-values no" "entry_equal: set print entry-values no" 96gdb_test "frame" {\(val=5\).*} "entry_equal: frame: no" 97gdb_test_no_output "set print entry-values only" "entry_equal: set print entry-values only" 98gdb_test "frame" {\(val@entry=5\).*} "entry_equal: frame: only" 99gdb_test_no_output "set print entry-values preferred" "entry_equal: set print entry-values preferred" 100gdb_test "frame" {\(val@entry=5\).*} "entry_equal: frame: preferred" 101gdb_test_no_output "set print entry-values if-needed" "entry_equal: set print entry-values if-needed" 102gdb_test "frame" {\(val=5\).*} "entry_equal: frame: if-needed" 103gdb_test_no_output "set print entry-values both" "entry_equal: set print entry-values both" 104gdb_test "frame" {\(val=5, val@entry=5\).*} "entry_equal: frame: both" 105gdb_test_no_output "set print entry-values compact" "entry_equal: set print entry-values compact" 106gdb_test "frame" {\(val=val@entry=5\).*} "entry_equal: frame: compact" 107gdb_test_no_output "set print entry-values default" "entry_equal: set print entry-values default" 108gdb_test "frame" {\(val=val@entry=5\).*} "entry_equal: frame: default" 109 110gdb_continue_to_breakpoint "entry_different: breakhere" 111 112gdb_test_no_output "set print entry-values no" "entry_different: set print entry-values no" 113gdb_test "frame" {\(val=6\).*} "entry_different: frame: no" 114gdb_test_no_output "set print entry-values only" "entry_different: set print entry-values only" 115gdb_test "frame" {\(val@entry=5\).*} "entry_different: frame: only" 116gdb_test_no_output "set print entry-values preferred" "entry_different: set print entry-values preferred" 117gdb_test "frame" {\(val@entry=5\).*} "entry_different: frame: preferred" 118gdb_test_no_output "set print entry-values if-needed" "entry_different: set print entry-values if-needed" 119gdb_test "frame" {\(val=6\).*} "entry_different: frame: if-needed" 120gdb_test_no_output "set print entry-values both" "entry_different: set print entry-values both" 121gdb_test "frame" {\(val=6, val@entry=5\).*} "entry_different: frame: both" 122gdb_test_no_output "set print entry-values compact" "entry_different: set print entry-values compact" 123gdb_test "frame" {\(val=6, val@entry=5\).*} "entry_different: frame: compact" 124gdb_test_no_output "set print entry-values default" "entry_different: set print entry-values default" 125gdb_test "frame" {\(val=6, val@entry=5\).*} "entry_different: frame: default" 126 127gdb_continue_to_breakpoint "entry_validity: breakhere" 128 129gdb_test_no_output "set print entry-values no" "entry_validity: set print entry-values no" 130gdb_test "frame" {\(lost=<optimized out>, born=10\).*} "entry_validity: frame: no" 131gdb_test_no_output "set print entry-values only" "entry_validity: set print entry-values only" 132gdb_test "frame" {\(lost@entry=5, born@entry=<optimized out>\).*} "entry_validity: frame: only" 133gdb_test_no_output "set print entry-values preferred" "entry_validity: set print entry-values preferred" 134gdb_test "frame" {\(lost@entry=5, born=10\).*} "entry_validity: frame: preferred" 135gdb_test_no_output "set print entry-values if-needed" "entry_validity: set print entry-values if-needed" 136gdb_test "frame" {\(lost@entry=5, born=10\).*} "entry_validity: frame: if-needed" 137gdb_test_no_output "set print entry-values both" "entry_validity: set print entry-values both" 138gdb_test "frame" {\(lost=<optimized out>, lost@entry=5, born=10, born@entry=<optimized out>\).*} "entry_validity: frame: both" 139gdb_test_no_output "set print entry-values compact" "entry_validity: set print entry-values compact" 140gdb_test "frame" {\(lost@entry=5, born=10\).*} "entry_validity: frame: compact" 141gdb_test_no_output "set print entry-values default" "entry_validity: set print entry-values default" 142gdb_test "frame" {\(lost=<optimized out>, lost@entry=5, born=10\).*} "entry_validity: frame: default" 143 144gdb_continue_to_breakpoint "entry_invalid: breakhere" 145 146gdb_test_no_output "set print entry-values no" "entry_invalid: set print entry-values no" 147gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: no" 148gdb_test_no_output "set print entry-values only" "entry_invalid: set print entry-values only" 149gdb_test "frame" {\(inv@entry=<optimized out>\).*} "entry_invalid: frame: only" 150gdb_test_no_output "set print entry-values preferred" "entry_invalid: set print entry-values preferred" 151gdb_test "frame" {\(inv@entry=<optimized out>\).*} "entry_invalid: frame: preferred" 152gdb_test_no_output "set print entry-values if-needed" "entry_invalid: set print entry-values if-needed" 153gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: if-needed" 154gdb_test_no_output "set print entry-values both" "entry_invalid: set print entry-values both" 155gdb_test "frame" {\(inv=<optimized out>, inv@entry=<optimized out>\).*} "entry_invalid: frame: both" 156gdb_test_no_output "set print entry-values compact" "entry_invalid: set print entry-values compact" 157gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: compact" 158gdb_test_no_output "set print entry-values default" "entry_invalid: set print entry-values default" 159gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: default" 160 161 162# Test @entry values for DW_AT_call_data_value parameters. 163 164gdb_continue_to_breakpoint "entry_reference: reference" 165 166# GCC PR debug/49980: Missing stackparam1@entry and stackparam2@entry. 167gdb_test "bt" "#0 +reference \\(regparam=regparam@entry=@0x\[0-9a-f\]+: 1, nodataparam=@0x\[0-9a-f\]+: 2, \[^\r\n\]+, stackparam1=@0x\[0-9a-f\]+: 11, stackparam2=@0x\[0-9a-f\]+: 12\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main \\(\\) \[^\r\n\]*" \ 168 "entry_reference: bt at entry" 169 170gdb_continue_to_breakpoint "entry_reference: breakhere_reference" 171 172# GCC PR debug/49980: Missing stackparam1@entry and stackparam2@entry. 173gdb_test "bt" "#0 +reference \\(regparam=@0x\[0-9a-f\]+: 21, regparam@entry=@0x\[0-9a-f\]+: 1, nodataparam=@0x\[0-9a-f\]+: 22, \[^\r\n\]+, stackparam1=@0x\[0-9a-f\]+: 31, stackparam2=@0x\[0-9a-f\]+: 32\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main \\(\\) \[^\r\n\]*" \ 174 "entry_reference: bt" 175gdb_test "ptype regparam" " = int &" "entry_reference: ptype regparam" 176 177set test "entry_reference: p regparam" 178set addr "" 179gdb_test_multiple "p regparam" $test { 180 -re " = \\(int &\\) @(0x\[0-9a-f\]+): 21\r\n$gdb_prompt $" { 181 set addr $expect_out(1,string) 182 pass $test 183 } 184} 185 186gdb_test "ptype regparam@entry" " = int &" "entry_reference: ptype regparam@entry" 187gdb_test "p regparam@entry" " = \\(int &\\) @$addr: 1" "entry_reference: p regparam@entry" 188gdb_test "p ®param@entry" " = \\(int \\*\\) $addr" "entry_reference: p ®param@entry" 189gdb_test "p regcopy" " = 1" "entry_reference: p regcopy" 190gdb_test "p nodataparam" " = \\(int &\\) @0x\[0-9a-f\]+: 22" "entry_reference: p nodataparam" 191gdb_test "p nodataparam@entry" "Cannot resolve DW_AT_call_data_value" "entry_reference: p nodataparam@entry" 192 193 194# Test virtual tail call frames. 195 196gdb_continue_to_breakpoint "tailcall: breakhere" 197 198gdb_test "bt" "^bt\r\n#0 +d *\\(i=71, i@entry=70, j=73\\.5, j@entry=72\\.5\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in c \\(i=i@entry=7, j=j@entry=7\\.25\\) \[^\r\n\]*\r\n#2 +0x\[0-9a-f\]+ in b \\(i=i@entry=5, j=j@entry=5\\.25\\) \[^\r\n\]*\r\n#3 +0x\[0-9a-f\]+ in main \[^\r\n\]*" \ 199 "tailcall: bt" 200gdb_test "p i" " = 71" "tailcall: p i" 201gdb_test "p i@entry" " = 70" "tailcall: p i@entry" 202gdb_test "p j" " = 73\\.5" "tailcall: p j" 203gdb_test "p j@entry" " = 72\\.5" "tailcall: p j@entry" 204 205# Test $sp simulation for tail call frames. 206#gdb_test {p/x $sp} " = 0x.*" 207#gdb_test {p/x $pc} " = 0x.*" 208gdb_test_no_output {set $sp0=$sp} 209gdb_test "up" "\r\n#1 .*" 210#gdb_test {p/x $sp} " = 0x.*" 211gdb_test {p $sp0 == $sp} " = true" 212gdb_test "frame 3" "\r\n#3 .*" 213gdb_test {p $sp0 + sizeof (void *) == $sp} " = true" 214 215# Test $pc adjustment which is now right after the function end. 216# Also verify the current PC indicator "=> " is not displayed anywhere. 217gdb_test "down" "\r\n#2 .*" 218set test "disassemble" 219gdb_test_multiple $test $test { 220 -re "^$test\r\n" { 221 exp_continue 222 } 223 -re "^Dump of assembler code for function b\\(int, double\\):\r\n" { 224 exp_continue 225 } 226 -re "^ 0x\[^\r\n\]*\r\n" { 227 exp_continue 228 } 229 -re "^End of assembler dump\\.\r\n$gdb_prompt $" { 230 pass $test 231 } 232} 233 234 235# Test partial-ambiguous virtual tail call frames chain. 236 237gdb_continue_to_breakpoint "ambiguous: breakhere" 238 239gdb_test "bt" "^bt\r\n#0 +d \\(i=<optimized out>, j=<optimized out>\\)\[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in amb_z \\(i=<optimized out>\\)\[^\r\n\]*\r\n#2 +0x\[0-9a-f\]+ in amb_y \\(i=<optimized out>\\)\[^\r\n\]*\r\n#3 +0x\[0-9a-f\]+ in amb_x \\(i=<optimized out>\\)\[^\r\n\]*\r\n#4 +0x\[0-9a-f\]+ in amb_b \\(i=i@entry=101\\)\[^\r\n\]*\r\n#5 +0x\[0-9a-f\]+ in amb_a \\(i=i@entry=100\\)\[^\r\n\]*\r\n#6 +0x\[0-9a-f\]+ in main \\(\\)\[^\r\n\]*" \ 240 "ambiguous: bt" 241 242 243# Test self tail calls verification. 244# GDB should not print the real value as it is ambiguous. 245 246gdb_continue_to_breakpoint "self: breakhere" 247 248gdb_test "bt" "^bt\r\n#0 +d \\(i=<optimized out>, j=<optimized out>\\)\[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in self \\(i=<optimized out>\\)\[^\r\n\]*\r\n#2 +0x\[0-9a-f\]+ in main \\(\\)\[^\r\n\]*" \ 249 "self: bt" 250 251gdb_test_no_output "set debug entry-values 1" 252gdb_test "bt" "DW_OP_entry_value resolving has found function \"self\\(int\\)\" at 0x\[0-9a-f\]+ can call itself via tail calls\r\n.*" \ 253 "self: bt debug entry-values" 254