2015-01-01 09:32:14 +00:00
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# Copyright 2011-2015 Free Software Foundation, Inc.
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2011-03-16 18:16:26 +00:00
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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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# This file is part of the gdb testsuite
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# Test casting, especially between class types or pointer-to-class
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# types.
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# This file is part of the gdb testsuite
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#
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# test running programs
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#
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if { [skip_cplus_tests] } { continue }
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test suite update - gdb.base/[ab]
Convert files gdb.base/[ab]*.exp to use standard_output_file et al.
* a2-run.exp, all-bin.exp, annota1.exp, annota3.exp, anon.exp,
args.exp, arithmet.exp, arrayidx.exp, assign.exp, async-shell.exp,
async.exp, attach-pie-misread.exp, attach-pie-noexec.exp,
attach-twice.exp, attach.exp, auxv.exp, bang.exp, bfp-test.exp,
bigcore.exp, bitfields.exp, bitfields2.exp, break-entry.exp,
break-interp.exp, break-on-linker-gcd-function.exp,
breakpoint-shadow.exp: Use standard_testfile,
standard_output_file, prepare_for_testing, clean_restart.
2013-06-27 18:47:53 +00:00
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standard_testfile .cc
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2011-03-16 18:16:26 +00:00
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2012-06-21 20:46:25 +00:00
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if [get_compiler_info "c++"] {
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gdb/testsuite/
* config/monitor.exp (gdb_target_cmd): Remove semicolon after
'return'.
(gdb_target_monitor, gdb_load): Likewise.
* config/sid.exp (gdb_load): Likewise.
* config/slite.exp (gdb_load): Likewise.
* config/vx.exp (gdb_start, spawn_vxgdb): Likewise.
* gdb.ada/arrayidx.exp, gdb.ada/null_array.exp: Likewise.
* gdb.arch/mips-octeon-bbit.exp (single_step): Likewise.
(single_step_until): Likewise.
* gdb.arch/powerpc-d128-regs.exp: Likewise.
* gdb.arch/system-gcore.exp: Likewise.
* gdb.base/bigcore.exp (extract_heap): Likewise.
* gdb.base/break-on-linker-gcd-function.exp: Likewise.
* gdb.base/call-ar-st.exp: Likewise.
* gdb.base/call-rt-st.exp: Likewise.
* gdb.base/call-sc.exp, gdb.base/call-strs.exp: Likewise.
* gdb.base/callfuncs.exp, gdb.base/completion.exp: Likewise.
* gdb.base/condbreak.exp, gdb.base/constvars.exp: Likewise.
* gdb.base/corefile.exp: Likewise.
* gdb.base/dbx.exp (gdb_file_cmd): Likewise.
* gdb.base/exprs.exp, gdb.base/fileio.exp: Likewise.
* gdb.base/fixsection.exp: Likewise.
* gdb.base/funcargs.exp: Likewise.
* gdb.base/gcore-buffer-overflow.exp: Likewise.
* gdb.base/gcore-relro.exp: Likewise.
* gdb.base/gcore.exp, gdb.base/gdb11530.exp: Likewise.
* gdb.base/gdb11531.exp, gdb.base/gnu-ifunc.exp: Likewise.
* gdb.base/info-os.exp, gdb.base/info-proc.exp: Likewise.
* gdb.base/interp.exp, gdb.base/langs.exp:: Likewise.
* gdb.base/list.exp: Likewise.
(set_listsize): Likewise.
* gdb.base/logical.exp, gdb.base/mips_pro.exp: Likewise.
* gdb.base/miscexprs.exp, gdb.base/nodebug.exp: Likewise.
* gdb.base/opaque.exp, gdb.base/pointers.exp: Likewise.
* gdb.base/psymtab.exp, gdb.base/ptype.exp: Likewise.
* gdb.base/relational.exp, gdb.base/scope.exp: Likewise.
* gdb.base/setvar.exp: Likewise.
(test_set): Likewise.
* gdb.base/signals.exp, gdb.base/sizeof.exp: Likewise.
* gdb.base/solib-overlap.exp: Likewise.
* gdb.base/store.exp, gdb.base/structs.exp: Likewise.
* gdb.base/structs2.exp, gdb.base/volatile.exp: Likewise.
* gdb.base/watchpoint.exp (initialize): Likewise.
(test_simple_watchpoint): Likewise.
(test_disabling_watchpoints): Likewise.
(test_watchpoint_triggered_in_syscall): Likewise.
* gdb.base/whatis.exp, gdb.cp/ambiguous.exp: Likewise.
* gdb.cp/casts.exp, gdb.cp/ctti.exp: Likewise.
* gdb.cp/namespace.exp, gdb.cp/nsdecl.exp: Likewise.
* gdb.cp/psmang.exp, gdb.dwarf2/dw2-ranges.exp: Likewise.
* gdb.hp/gdb.aCC/optimize.exp: Likewise.
* gdb.hp/gdb.aCC/watch-cmd.exp: Likewise.
* gdb.hp/gdb.base-hp/callfwmall.exp: Likewise.
* gdb.hp/gdb.base-hp/pxdb.exp: Likewise.
* gdb.hp/gdb.compat/xdb1.exp: Likewise.
* gdb.hp/gdb.compat/xdb2.exp: Likewise.
* gdb.hp/gdb.compat/xdb3.exp: Likewise.
* gdb.hp/gdb.defects/bs14602.exp: Likewise.
* gdb.hp/gdb.defects/solib-d.exp: Likewise.
* gdb.mi/gdb792.exp: Likewise.
* gdb.mi/mi-inheritance-syntax-error.exp: Likewise.
* gdb.mi/mi-logging.exp, gdb.mi/mi-var-cp.exp : Likewise.
* gdb.mi/mi-var-rtti.exp, gdb.python/py-type.exp: Likewise.
* gdb.threads/gcore-thread.exp: Likewise.
(load_core): Likewise.
* gdb.threads/pthreads.exp (all_threads_running): Likewise.
(test_startup, check_control_c): Likewise.
* gdb.threads/sigstep-threads.exp: Likewise.
* gdb.threads/thread_check.exp: Likewise.
* gdb.trace/backtrace.exp, gdb.trace/change-loc.exp: Likewise.
* gdb.trace/circ.exp (run_trace_experiment): Likewise.
(set_a_tracepoint, trace_buffer_normal): Likewise.
(gdb_trace_circular_tests): Likewise.
* gdb.trace/collection.exp: Likewise.
* gdb.trace/disconnected-tracing.exp: Likewise.
* gdb.trace/infotrace.exp: Likewise.
* gdb.trace/mi-traceframe-changed.exp: Likewise.
* gdb.trace/mi-tracepoint-changed.exp: Likewise.
* gdb.trace/mi-tsv-changed.exp (test_create_delete_modify_tsv): Likewise.
* gdb.trace/packetlen.exp, gdb.trace/passc-dyn.exp: Likewise.
* gdb.trace/pending.exp, gdb.trace/report.exp: Likewise.
* gdb.trace/stap-trace.exp: Likewise.
* gdb.trace/status-stop.exp,gdb.trace/strace.exp: Likewise.
* gdb.trace/tfind.exp, gdb.trace/trace-break.exp: Likewise.
* gdb.trace/trace-buffer-size.exp: Likewise.
* gdb.trace/tspeed.exp, gdb.trace/tsv.exp: Likewise.
* gdb.trace/unavailable.exp: Likewise.
* gdb.trace/while-dyn.exp: Likewise.
* lib/fortran.exp (set_lang_fortran): Likewise.
* lib/gdb.exp (default_gdb_version, gdb_start_cmd): Likewise.
(gdb_breakpoint, gdb_reinitialize_dir): Likewise.
(default_gdb_start, get_compiler_info): Likewise.
(gdb_compile, gdb_compile_objc, gdb_reload, gdb_init): Likewise.
(get_debug_format, setup_xfail_format): Likewise.
(rerun_to_main, gdb_skip_float_test): Likewise.
(build_id_debug_filename_get, get_remotetimeout): Likewise.
* lib/java.exp (set_lang_java): Likewise.
* lib/mi-support.exp (default_mi_gdb_start): Likewise.
(mi_gdb_reinitialize_dir, mi_gdb_target_cmd): Likewise.
(mi_gdb_file_cmd, mi_gdb_test): Likewise.
(mi_run_cmd_full, mi_expect_interrupt): Likewise.
* lib/objc.exp (set_lang_objc): Likewise.
* lib/pascal.exp (set_lang_pascal): Likewise.
* lib/prompt.exp (default_prompt_gdb_start): Likewise.
* lib/trace-support.exp (gdb_trace_setactions, gdb_tfind_test): Likewise.
(gdb_readexpr, gdb_gettpnum, gdb_find_recursion_test_baseline): Likewise.
2013-03-14 13:34:06 +00:00
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return -1
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2011-03-16 18:16:26 +00:00
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}
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set additional_flags {-ffunction-sections -Wl,--gc-sections}
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2013-07-02 20:06:12 +00:00
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if {[build_executable_from_specs $testfile.exp $testfile \
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{c++ additional_flags=-Wl,--gc-sections} \
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$srcfile {debug c++ additional_flags=-ffunction-sections}]} {
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test suite update - gdb.base/[ab]
Convert files gdb.base/[ab]*.exp to use standard_output_file et al.
* a2-run.exp, all-bin.exp, annota1.exp, annota3.exp, anon.exp,
args.exp, arithmet.exp, arrayidx.exp, assign.exp, async-shell.exp,
async.exp, attach-pie-misread.exp, attach-pie-noexec.exp,
attach-twice.exp, attach.exp, auxv.exp, bang.exp, bfp-test.exp,
bigcore.exp, bitfields.exp, bitfields2.exp, break-entry.exp,
break-interp.exp, break-on-linker-gcd-function.exp,
breakpoint-shadow.exp: Use standard_testfile,
standard_output_file, prepare_for_testing, clean_restart.
2013-06-27 18:47:53 +00:00
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untested $testfile.exp
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2011-03-16 18:16:26 +00:00
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return -1
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}
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2013-07-02 20:06:12 +00:00
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clean_restart $testfile
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Check function is GC'ed
I see the following fail on arm-none-eabi target,
(gdb) b 24^M
Breakpoint 1 at 0x4: file
../../../../git/gdb/testsuite/gdb.base/break-on-linker-gcd-function.cc,
line 24.^M
(gdb) FAIL: gdb.base/break-on-linker-gcd-function.exp: b 24
Currently, we are using flag has_section_at_zero to determine whether
address zero in debug info means the corresponding code has been
GC'ed, like this:
case DW_LNE_set_address:
address = read_address (abfd, line_ptr, cu, &bytes_read);
if (address == 0 && !dwarf2_per_objfile->has_section_at_zero)
{
/* This line table is for a function which has been
GCd by the linker. Ignore it. PR gdb/12528 */
However, this is incorrect on some bare metal targets, as .text
section is located at 0x0, so dwarf2_per_objfile->has_section_at_zero
is true. If a function is GC'ed by linker, the address is zero. GDB
thinks address zero is a function's address rather than this function
is GC'ed.
In this patch, we choose 'lowpc' got in read_file_scope to check
whether 'lowpc' is greater than zero. If it isn't, address zero really
means the function is GC'ed. In this patch, we pass 'lowpc' in
read_file_scope through handle_DW_AT_stmt_list and dwarf_decode_lines,
and to dwarf_decode_lines_1 finally.
This patch fixes the fail above. This patch also covers the path that
partial symbol isn't used, which is tested by starting gdb with
--readnow option.
It is regression tested on x86-linux with
target_board=dwarf4-gdb-index, and arm-none-eabi. OK to apply?
gdb:
2014-09-19 Yao Qi <yao@codesourcery.com>
* dwarf2read.c (dwarf_decode_lines): Update declaration.
(handle_DW_AT_stmt_list): Add argument 'lowpc'. Update
comments. Callers update.
(dwarf_decode_lines): Likewise.
(dwarf_decode_lines_1): Add argument 'lowpc'. Update
comments. Skip the line table if 'lowpc' is greater than
'address'. Don't check
dwarf2_per_objfile->has_section_at_zero.
gdb/testsuite:
2014-09-19 Yao Qi <yao@codesourcery.com>
* gdb.base/break-on-linker-gcd-function.exp: Move test into new
proc set_breakpoint_on_gcd_function. Invoke
set_breakpoint_on_gcd_function. Restart GDB with --readnow and
invoke set_breakpoint_on_gcd_function again.
2014-08-04 06:57:22 +00:00
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proc set_breakpoint_on_gcd_function {} {
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# Single hex digit
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set xd {[0-9a-f]}
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# This accepts e.g. "Breakpoint 1 at 0x40968a" (fixed GDB)
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# but rejects e.g. "Breakpoint 1 at 0x4" (broken GDB).
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gdb_test "b [gdb_get_line_number "gdb break here"]" \
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"Breakpoint \[0-9\] at 0x${xd}${xd}+: .*"
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}
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set_breakpoint_on_gcd_function
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2011-03-16 18:16:26 +00:00
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Check function is GC'ed
I see the following fail on arm-none-eabi target,
(gdb) b 24^M
Breakpoint 1 at 0x4: file
../../../../git/gdb/testsuite/gdb.base/break-on-linker-gcd-function.cc,
line 24.^M
(gdb) FAIL: gdb.base/break-on-linker-gcd-function.exp: b 24
Currently, we are using flag has_section_at_zero to determine whether
address zero in debug info means the corresponding code has been
GC'ed, like this:
case DW_LNE_set_address:
address = read_address (abfd, line_ptr, cu, &bytes_read);
if (address == 0 && !dwarf2_per_objfile->has_section_at_zero)
{
/* This line table is for a function which has been
GCd by the linker. Ignore it. PR gdb/12528 */
However, this is incorrect on some bare metal targets, as .text
section is located at 0x0, so dwarf2_per_objfile->has_section_at_zero
is true. If a function is GC'ed by linker, the address is zero. GDB
thinks address zero is a function's address rather than this function
is GC'ed.
In this patch, we choose 'lowpc' got in read_file_scope to check
whether 'lowpc' is greater than zero. If it isn't, address zero really
means the function is GC'ed. In this patch, we pass 'lowpc' in
read_file_scope through handle_DW_AT_stmt_list and dwarf_decode_lines,
and to dwarf_decode_lines_1 finally.
This patch fixes the fail above. This patch also covers the path that
partial symbol isn't used, which is tested by starting gdb with
--readnow option.
It is regression tested on x86-linux with
target_board=dwarf4-gdb-index, and arm-none-eabi. OK to apply?
gdb:
2014-09-19 Yao Qi <yao@codesourcery.com>
* dwarf2read.c (dwarf_decode_lines): Update declaration.
(handle_DW_AT_stmt_list): Add argument 'lowpc'. Update
comments. Callers update.
(dwarf_decode_lines): Likewise.
(dwarf_decode_lines_1): Add argument 'lowpc'. Update
comments. Skip the line table if 'lowpc' is greater than
'address'. Don't check
dwarf2_per_objfile->has_section_at_zero.
gdb/testsuite:
2014-09-19 Yao Qi <yao@codesourcery.com>
* gdb.base/break-on-linker-gcd-function.exp: Move test into new
proc set_breakpoint_on_gcd_function. Invoke
set_breakpoint_on_gcd_function. Restart GDB with --readnow and
invoke set_breakpoint_on_gcd_function again.
2014-08-04 06:57:22 +00:00
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set saved_gdbflags $GDBFLAGS
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set GDBFLAGS "$GDBFLAGS --readnow"
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clean_restart ${testfile}
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set GDBFLAGS $saved_gdbflags
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with_test_prefix "readnow" {
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set_breakpoint_on_gcd_function
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}
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