ChangeLog:
2011-03-16 Paul Pluzhnikov <ppluzhnikov@google.com> PR gdb/12528 * dwarf2read.c (noop_record_line): New function. (dwarf_decode_lines): Ignore line tables for GCd functions. testsuite/ChangeLog: 2011-03-16 Paul Pluzhnikov <ppluzhnikov@google.com> PR gdb/12528 * gdb.base/Makefile.in: Adjust EXECUTABLES. * gdb.base/break-on-linker-gcd-function.exp: New test. * gdb.base/break-on-linker-gcd-function.cc: New file.
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@ -1,3 +1,9 @@
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2011-03-16 Paul Pluzhnikov <ppluzhnikov@google.com>
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PR gdb/12528
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* dwarf2read.c (noop_record_line): New function.
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(dwarf_decode_lines): Ignore line tables for GCd functions.
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2011-03-16 Pierre Muller <muller@ics.u-strasbg.fr>
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2011-03-16 Pierre Muller <muller@ics.u-strasbg.fr>
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Fix ARI warnings about new lines at the end of messages, which
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Fix ARI warnings about new lines at the end of messages, which
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@ -10364,6 +10364,14 @@ psymtab_include_file_name (const struct line_header *lh, int file_index,
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return include_name;
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return include_name;
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}
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}
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/* Ignore this record_line request. */
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static void
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noop_record_line (struct subfile *subfile, int line, CORE_ADDR pc)
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{
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return;
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}
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/* Decode the Line Number Program (LNP) for the given line_header
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/* Decode the Line Number Program (LNP) for the given line_header
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structure and CU. The actual information extracted and the type
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structure and CU. The actual information extracted and the type
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of structures created from the LNP depends on the value of PST.
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of structures created from the LNP depends on the value of PST.
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@ -10399,6 +10407,8 @@ dwarf_decode_lines (struct line_header *lh, const char *comp_dir, bfd *abfd,
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struct gdbarch *gdbarch = get_objfile_arch (objfile);
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struct gdbarch *gdbarch = get_objfile_arch (objfile);
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const int decode_for_pst_p = (pst != NULL);
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const int decode_for_pst_p = (pst != NULL);
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struct subfile *last_subfile = NULL, *first_subfile = current_subfile;
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struct subfile *last_subfile = NULL, *first_subfile = current_subfile;
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void (*p_record_line) (struct subfile *subfile, int line, CORE_ADDR pc)
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= record_line;
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baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
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baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
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@ -10468,13 +10478,13 @@ dwarf_decode_lines (struct line_header *lh, const char *comp_dir, bfd *abfd,
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{
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{
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addr = gdbarch_addr_bits_remove (gdbarch, address);
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addr = gdbarch_addr_bits_remove (gdbarch, address);
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if (last_subfile)
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if (last_subfile)
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record_line (last_subfile, 0, addr);
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(*p_record_line) (last_subfile, 0, addr);
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last_subfile = current_subfile;
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last_subfile = current_subfile;
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}
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}
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/* Append row to matrix using current values. */
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/* Append row to matrix using current values. */
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addr = check_cu_functions (address, cu);
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addr = check_cu_functions (address, cu);
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addr = gdbarch_addr_bits_remove (gdbarch, addr);
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addr = gdbarch_addr_bits_remove (gdbarch, addr);
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record_line (current_subfile, line, addr);
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(*p_record_line) (current_subfile, line, addr);
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}
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}
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}
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}
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basic_block = 0;
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basic_block = 0;
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@ -10491,10 +10501,27 @@ dwarf_decode_lines (struct line_header *lh, const char *comp_dir, bfd *abfd,
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switch (extended_op)
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switch (extended_op)
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{
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{
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case DW_LNE_end_sequence:
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case DW_LNE_end_sequence:
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p_record_line = record_line;
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end_sequence = 1;
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end_sequence = 1;
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break;
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break;
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case DW_LNE_set_address:
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case DW_LNE_set_address:
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address = read_address (abfd, line_ptr, cu, &bytes_read);
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address = read_address (abfd, line_ptr, cu, &bytes_read);
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if (address == 0 && !dwarf2_per_objfile->has_section_at_zero)
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{
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/* This line table is for a function which has been
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GCd by the linker. Ignore it. PR gdb/12528 */
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long line_offset
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= line_ptr - dwarf2_per_objfile->line.buffer;
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complaint (&symfile_complaints,
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_(".debug_line address at offset 0x%lx is 0 "
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"[in module %s]"),
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line_offset, cu->objfile->name);
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p_record_line = noop_record_line;
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}
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op_index = 0;
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op_index = 0;
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line_ptr += bytes_read;
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line_ptr += bytes_read;
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address += baseaddr;
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address += baseaddr;
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@ -10551,12 +10578,12 @@ dwarf_decode_lines (struct line_header *lh, const char *comp_dir, bfd *abfd,
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{
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{
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addr = gdbarch_addr_bits_remove (gdbarch, address);
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addr = gdbarch_addr_bits_remove (gdbarch, address);
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if (last_subfile)
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if (last_subfile)
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record_line (last_subfile, 0, addr);
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(*p_record_line) (last_subfile, 0, addr);
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last_subfile = current_subfile;
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last_subfile = current_subfile;
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}
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}
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addr = check_cu_functions (address, cu);
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addr = check_cu_functions (address, cu);
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addr = gdbarch_addr_bits_remove (gdbarch, addr);
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addr = gdbarch_addr_bits_remove (gdbarch, addr);
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record_line (current_subfile, line, addr);
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(*p_record_line) (current_subfile, line, addr);
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}
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}
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}
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}
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basic_block = 0;
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basic_block = 0;
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@ -10655,7 +10682,7 @@ dwarf_decode_lines (struct line_header *lh, const char *comp_dir, bfd *abfd,
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if (!decode_for_pst_p)
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if (!decode_for_pst_p)
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{
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{
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addr = gdbarch_addr_bits_remove (gdbarch, address);
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addr = gdbarch_addr_bits_remove (gdbarch, address);
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record_line (current_subfile, 0, addr);
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(*p_record_line) (current_subfile, 0, addr);
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}
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}
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}
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}
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}
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}
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@ -1,3 +1,10 @@
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2011-03-16 Paul Pluzhnikov <ppluzhnikov@google.com>
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PR gdb/12528
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* gdb.base/Makefile.in: Adjust EXECUTABLES.
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* gdb.base/break-on-linker-gcd-function.exp: New test.
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* gdb.base/break-on-linker-gcd-function.cc: New file.
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2011-03-15 Andreas Tobler <andreast@fgznet.ch>
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2011-03-15 Andreas Tobler <andreast@fgznet.ch>
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* gdb.base/jit-main.c: Define ElfW for non glibc elf targets.
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* gdb.base/jit-main.c: Define ElfW for non glibc elf targets.
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@ -5,7 +5,8 @@ EXECUTABLES = a2-run advance all-types annota1 annota1-watch_thread_num \
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annota3 anon args arrayidx async attach attach-pie-misread \
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annota3 anon args arrayidx async attach attach-pie-misread \
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attach2 auxv bang\! bfp-test bigcore bitfields bitfields2 \
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attach2 auxv bang\! bfp-test bigcore bitfields bitfields2 \
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break break-always break-entry break-interp-test breako2 \
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break break-always break-entry break-interp-test breako2 \
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breakpoint-shadow call-ar-st call-rt-st call-sc-t* call-signals \
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breakpoint-shadow break-on-linker-gcd-function \
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call-ar-st call-rt-st call-sc-t* call-signals \
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call-strs callexit callfuncs callfwmall charset checkpoint \
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call-strs callexit callfuncs callfwmall charset checkpoint \
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chng-syms code_elim1 code_elim2 commands compiler complex \
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chng-syms code_elim1 code_elim2 commands compiler complex \
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condbreak consecutive constvars coremaker cursal cvexpr \
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condbreak consecutive constvars coremaker cursal cvexpr \
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@ -0,0 +1,32 @@
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 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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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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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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*/
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// Test case for PR gdb/12528
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void
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foo ()
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{
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// This function is not referenced and should be GCd by the linker
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return; // gdb break here
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}
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int
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main ()
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{
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return 0;
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}
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@ -0,0 +1,54 @@
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# Copyright 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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# 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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if $tracelevel then {
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strace $tracelevel
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}
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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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set testfile "break-on-linker-gcd-function"
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set srcfile ${testfile}.cc
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set binfile ${objdir}/${subdir}/${testfile}
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if [get_compiler_info ${binfile} "c++"] {
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return -1;
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}
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set additional_flags {-ffunction-sections -Wl,--gc-sections}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable \
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[list debug c++ additional_flags=$additional_flags]] != "" } {
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untested $srcfile
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return -1
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}
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clean_restart $testfile
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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"]" "Breakpoint \[0-9\] at 0x${xd}${xd}+: .*"
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