e18b27534c
Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
193 lines
9.9 KiB
Text
193 lines
9.9 KiB
Text
# Copyright (C) 2011 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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set testfile amd64-entry-value
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set srcfile ${testfile}.s
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set opts {}
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if [info exists COMPILE] {
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# make check RUNTESTFLAGS="gdb.arch/amd64-entry-value.exp COMPILE=1"
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set srcfile ${testfile}.cc
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lappend opts debug optimize=-O2
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} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
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verbose "Skipping amd64-entry-value."
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return
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}
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if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} $opts] } {
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return -1
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}
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if ![runto_main] {
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return -1
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}
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gdb_breakpoint "breakhere"
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gdb_breakpoint "breakhere_locexpr"
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gdb_breakpoint "stacktest"
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gdb_breakpoint "breakhere_stacktest"
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gdb_breakpoint "different"
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gdb_breakpoint "breakhere_different"
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gdb_breakpoint "breakhere_validity"
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gdb_breakpoint "breakhere_invalid"
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# Test @entry values for register passed parameters.
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gdb_continue_to_breakpoint "entry: breakhere"
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gdb_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 .*" \
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"entry: bt"
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gdb_test "p i" " = 31" "entry: p i"
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gdb_test "p j" { = 31\.5} "entry: p j"
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# Test @entry values when parameter in function is locexpr (and not loclist).
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gdb_continue_to_breakpoint "entry_locexpr: breakhere_locexpr"
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gdb_test "p i" " = 30" "entry_locexpr: p i"
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gdb_test_no_output "set variable i = 0" "entry_locexpr: set variable i = 0"
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gdb_test "bt" "^bt\r\n#0 +locexpr *\\(i=0, i@entry=30\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in main .*" \
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"entry_locexpr: bt"
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# Test @entry values for stack passed parameters.
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gdb_continue_to_breakpoint "entry_stack: stacktest"
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gdb_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 .*" \
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"entry_stack: bt at entry"
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gdb_continue_to_breakpoint "entry_stack: breakhere_stacktest"
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gdb_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 .*" \
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"entry_stack: bt"
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gdb_test "p s1" " = 3" "entry_stack: p s1"
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gdb_test "p s2" " = 4" "entry_stack: p s2"
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gdb_test "p d9" " = 3\\.5" "entry_stack: p d9"
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gdb_test "p da" " = 4\\.5" "entry_stack: p da"
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# Test various kinds of `set print entry-values'.
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gdb_continue_to_breakpoint "entry_equal: breakhere"
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gdb_test_no_output "set print entry-values no" "entry_equal: set print entry-values no"
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gdb_test "frame" {\(val=5\).*} "entry_equal: frame: no"
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gdb_test_no_output "set print entry-values only" "entry_equal: set print entry-values only"
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gdb_test "frame" {\(val@entry=5\).*} "entry_equal: frame: only"
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gdb_test_no_output "set print entry-values preferred" "entry_equal: set print entry-values preferred"
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gdb_test "frame" {\(val@entry=5\).*} "entry_equal: frame: preferred"
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gdb_test_no_output "set print entry-values if-needed" "entry_equal: set print entry-values if-needed"
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gdb_test "frame" {\(val=5\).*} "entry_equal: frame: if-needed"
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gdb_test_no_output "set print entry-values both" "entry_equal: set print entry-values both"
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gdb_test "frame" {\(val=5, val@entry=5\).*} "entry_equal: frame: both"
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gdb_test_no_output "set print entry-values compact" "entry_equal: set print entry-values compact"
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gdb_test "frame" {\(val=val@entry=5\).*} "entry_equal: frame: compact"
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gdb_test_no_output "set print entry-values default" "entry_equal: set print entry-values default"
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gdb_test "frame" {\(val=val@entry=5\).*} "entry_equal: frame: default"
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gdb_continue_to_breakpoint "entry_different: breakhere"
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gdb_test_no_output "set print entry-values no" "entry_different: set print entry-values no"
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gdb_test "frame" {\(val=6\).*} "entry_different: frame: no"
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gdb_test_no_output "set print entry-values only" "entry_different: set print entry-values only"
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gdb_test "frame" {\(val@entry=5\).*} "entry_different: frame: only"
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gdb_test_no_output "set print entry-values preferred" "entry_different: set print entry-values preferred"
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gdb_test "frame" {\(val@entry=5\).*} "entry_different: frame: preferred"
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gdb_test_no_output "set print entry-values if-needed" "entry_different: set print entry-values if-needed"
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gdb_test "frame" {\(val=6\).*} "entry_different: frame: if-needed"
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gdb_test_no_output "set print entry-values both" "entry_different: set print entry-values both"
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gdb_test "frame" {\(val=6, val@entry=5\).*} "entry_different: frame: both"
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gdb_test_no_output "set print entry-values compact" "entry_different: set print entry-values compact"
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gdb_test "frame" {\(val=6, val@entry=5\).*} "entry_different: frame: compact"
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gdb_test_no_output "set print entry-values default" "entry_different: set print entry-values default"
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gdb_test "frame" {\(val=6, val@entry=5\).*} "entry_different: frame: default"
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gdb_continue_to_breakpoint "entry_validity: breakhere"
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gdb_test_no_output "set print entry-values no" "entry_validity: set print entry-values no"
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gdb_test "frame" {\(lost=<optimized out>, born=10\).*} "entry_validity: frame: no"
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gdb_test_no_output "set print entry-values only" "entry_validity: set print entry-values only"
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gdb_test "frame" {\(lost@entry=5, born@entry=<optimized out>\).*} "entry_validity: frame: only"
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gdb_test_no_output "set print entry-values preferred" "entry_validity: set print entry-values preferred"
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gdb_test "frame" {\(lost@entry=5, born=10\).*} "entry_validity: frame: preferred"
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gdb_test_no_output "set print entry-values if-needed" "entry_validity: set print entry-values if-needed"
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gdb_test "frame" {\(lost@entry=5, born=10\).*} "entry_validity: frame: if-needed"
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gdb_test_no_output "set print entry-values both" "entry_validity: set print entry-values both"
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gdb_test "frame" {\(lost=<optimized out>, lost@entry=5, born=10, born@entry=<optimized out>\).*} "entry_validity: frame: both"
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gdb_test_no_output "set print entry-values compact" "entry_validity: set print entry-values compact"
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gdb_test "frame" {\(lost@entry=5, born=10\).*} "entry_validity: frame: compact"
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gdb_test_no_output "set print entry-values default" "entry_validity: set print entry-values default"
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gdb_test "frame" {\(lost=<optimized out>, lost@entry=5, born=10\).*} "entry_validity: frame: default"
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gdb_continue_to_breakpoint "entry_invalid: breakhere"
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gdb_test_no_output "set print entry-values no" "entry_invalid: set print entry-values no"
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gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: no"
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gdb_test_no_output "set print entry-values only" "entry_invalid: set print entry-values only"
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gdb_test "frame" {\(inv@entry=<optimized out>\).*} "entry_invalid: frame: only"
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gdb_test_no_output "set print entry-values preferred" "entry_invalid: set print entry-values preferred"
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gdb_test "frame" {\(inv@entry=<optimized out>\).*} "entry_invalid: frame: preferred"
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gdb_test_no_output "set print entry-values if-needed" "entry_invalid: set print entry-values if-needed"
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gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: if-needed"
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gdb_test_no_output "set print entry-values both" "entry_invalid: set print entry-values both"
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gdb_test "frame" {\(inv=<optimized out>, inv@entry=<optimized out>\).*} "entry_invalid: frame: both"
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gdb_test_no_output "set print entry-values compact" "entry_invalid: set print entry-values compact"
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gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: compact"
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gdb_test_no_output "set print entry-values default" "entry_invalid: set print entry-values default"
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gdb_test "frame" {\(inv=<optimized out>\).*} "entry_invalid: frame: default"
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# Test virtual tail call frames.
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gdb_continue_to_breakpoint "tailcall: breakhere"
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gdb_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 \[^\r\n\]*" \
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"tailcall: bt"
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gdb_test "p i" " = 71" "tailcall: p i"
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gdb_test "p j" " = 73\\.5" "tailcall: p j"
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# Test $sp simulation for tail call frames.
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#gdb_test {p/x $sp} " = 0x.*"
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#gdb_test {p/x $pc} " = 0x.*"
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gdb_test_no_output {set $sp0=$sp}
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gdb_test "up" "\r\n#1 .*"
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#gdb_test {p/x $sp} " = 0x.*"
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gdb_test {p $sp0 == $sp} " = true"
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gdb_test "frame 3" "\r\n#3 .*"
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gdb_test {p $sp0 + sizeof (void *) == $sp} " = true"
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# Test partial-ambiguous virtual tail call frames chain.
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gdb_continue_to_breakpoint "ambiguous: breakhere"
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gdb_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 \\(\\)\[^\r\n\]*" \
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"ambiguous: bt"
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# Test self tail calls verification.
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# GDB should not print the real value as it is ambiguous.
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gdb_continue_to_breakpoint "self: breakhere"
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gdb_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 \\(\\)\[^\r\n\]*" \
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"self: bt"
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gdb_test_no_output "set debug entry-values 1"
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gdb_test "bt" "DW_OP_GNU_entry_value resolving has found function \"self\\(int\\)\" at 0x\[0-9a-f\]+ can call itself via tail calls\r\n.*" \
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"self: bt debug entry-values"
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