mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2025-03-06 16:38:58 +00:00
2011-10-31 Pedro Alves <pedro@codesourcery.com>
gdb/gdbserver/
* mem-break.c (check_mem_write): Add `myaddr' parameter. Don't
clobber the breakpoints' shadows with fast tracepoint jumps.
* mem-break.h (check_mem_write): Add `myaddr' parameter.
* target.c (write_inferior_memory): Also pass MYADDR down to
check_mem_write.
gdb/testsuite/
* gdb.trace/trace-break.c: New.
* gdb.trace/trace-break.exp: New.
This commit is contained in:
Pedro Alves
parent
bb593acb76
commit
b9fd179153
@ -1,3 +1,11 @@
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2011-10-31 Pedro Alves <pedro@codesourcery.com>
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* mem-break.c (check_mem_write): Add `myaddr' parameter. Don't
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clobber the breakpoints' shadows with fast tracepoint jumps.
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* mem-break.h (check_mem_write): Add `myaddr' parameter.
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* target.c (write_inferior_memory): Also pass MYADDR down to
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check_mem_write.
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2011-10-07 Ulrich Weigand <ulrich.weigand@linaro.org>
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* configure.ac: Check support for personality routine.
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@ -1029,7 +1029,8 @@ check_mem_read (CORE_ADDR mem_addr, unsigned char *buf, int mem_len)
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}
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void
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check_mem_write (CORE_ADDR mem_addr, unsigned char *buf, int mem_len)
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check_mem_write (CORE_ADDR mem_addr, unsigned char *buf,
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const unsigned char *myaddr, int mem_len)
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{
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struct process_info *proc = current_process ();
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struct raw_breakpoint *bp = proc->raw_breakpoints;
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@ -1063,7 +1064,7 @@ check_mem_write (CORE_ADDR mem_addr, unsigned char *buf, int mem_len)
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buf_offset = start - mem_addr;
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memcpy (fast_tracepoint_jump_shadow (jp) + copy_offset,
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buf + buf_offset, copy_len);
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myaddr + buf_offset, copy_len);
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if (jp->inserted)
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memcpy (buf + buf_offset,
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fast_tracepoint_jump_insn (jp) + copy_offset, copy_len);
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@ -1092,7 +1093,7 @@ check_mem_write (CORE_ADDR mem_addr, unsigned char *buf, int mem_len)
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copy_offset = start - bp->pc;
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buf_offset = start - mem_addr;
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memcpy (bp->old_data + copy_offset, buf + buf_offset, copy_len);
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memcpy (bp->old_data + copy_offset, myaddr + buf_offset, copy_len);
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if (bp->inserted)
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{
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if (validate_inserted_breakpoint (bp))
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@ -102,9 +102,11 @@ void check_mem_read (CORE_ADDR mem_addr, unsigned char *buf, int mem_len);
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/* See if any breakpoints shadow the target memory area from MEM_ADDR
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to MEM_ADDR + MEM_LEN. Update the data to be written to the target
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(in BUF) if necessary, as well as the original data for any breakpoints. */
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(in BUF, a copy of MYADDR on entry) if necessary, as well as the
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original data for any breakpoints. */
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void check_mem_write (CORE_ADDR mem_addr, unsigned char *buf, int mem_len);
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void check_mem_write (CORE_ADDR mem_addr,
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unsigned char *buf, const unsigned char *myaddr, int mem_len);
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/* Set the byte pattern to insert for memory breakpoints. This function
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must be called before any breakpoints are set. */
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@ -63,7 +63,7 @@ write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
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buffer = xmalloc (len);
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memcpy (buffer, myaddr, len);
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check_mem_write (memaddr, buffer, len);
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check_mem_write (memaddr, buffer, myaddr, len);
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res = (*the_target->write_memory) (memaddr, buffer, len);
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free (buffer);
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buffer = NULL;
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@ -1,3 +1,9 @@
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2011-10-31 Yao Qi <yao@codesourcery.com>
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Pedro Alves <pedro@codesourcery.com>
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* gdb.trace/trace-break.c: New.
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* gdb.trace/trace-break.exp: New.
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2011-10-28 Jan Kratochvil <jan.kratochvil@redhat.com>
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* gdb.threads/no-unwaited-for-left.exp: Specify $srcfile for
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58
gdb/testsuite/gdb.trace/trace-break.c
Normal file
58
gdb/testsuite/gdb.trace/trace-break.c
Normal file
@ -0,0 +1,58 @@
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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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#ifdef SYMBOL_PREFIX
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#define SYMBOL(str) SYMBOL_PREFIX #str
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#else
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#define SYMBOL(str) #str
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#endif
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/* Called from asm. */
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static void __attribute__((used))
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func (void)
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{}
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static void
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marker (void)
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{
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/* Some code to make sure `b marker' and `b set_point' set
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breakpoints at different addresses. */
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int a = 0;
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int b = a;
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/* `set_point' is the label where we'll set multiple tracepoints and
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breakpoints at. The insn at the label must the large enough to
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fit a fast tracepoint jump. */
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asm (" .global " SYMBOL(set_point) "\n"
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SYMBOL(set_point) ":\n"
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#if (defined __x86_64__ || defined __i386__)
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" call " SYMBOL(func) "\n"
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#endif
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);
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}
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static void
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end (void)
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{}
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int
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main ()
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{
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marker ();
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end ();
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return 0;
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}
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240
gdb/testsuite/gdb.trace/trace-break.exp
Normal file
240
gdb/testsuite/gdb.trace/trace-break.exp
Normal file
@ -0,0 +1,240 @@
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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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load_lib "trace-support.exp";
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set testfile "trace-break"
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set executable $testfile
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set srcfile $testfile.c
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set binfile $objdir/$subdir/$testfile
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set expfile $testfile.exp
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# Some targets have leading underscores on assembly symbols.
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set additional_flags [gdb_target_symbol_prefix_flags]
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if [prepare_for_testing $expfile $executable $srcfile \
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[list debug $additional_flags]] {
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untested "failed to prepare for trace tests"
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return -1
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}
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if ![runto_main] {
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fail "Can't run to main to check for trace support"
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return -1
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}
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if ![gdb_target_supports_trace] {
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unsupported "target does not support trace"
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return -1;
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}
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# Set breakpoint and tracepoint at the same address.
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proc break_trace_same_addr_1 { trace_type option } {
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global executable
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global pf_prefix
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global hex
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set old_pf_prefix $pf_prefix
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set pf_prefix "$pf_prefix 1 $trace_type $option:"
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# Start with a fresh gdb.
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clean_restart ${executable}
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if ![runto_main] {
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fail "Can't run to main"
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set pf_prefix $old_pf_prefix
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return -1
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}
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gdb_test_no_output "set breakpoint always-inserted ${option}"
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gdb_test "break end" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "break set_point" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "${trace_type} set_point" "\(Fast t|T\)racepoint \[0-9\] at $hex: file.*"
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gdb_test_no_output "tstart"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*" "continue to set_point"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*" "continue to end"
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gdb_test_no_output "tstop"
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gdb_test "tfind" "Found trace frame 0, tracepoint .*" "tfind frame 0"
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gdb_test "tfind" "Target failed to find requested trace frame\\..*"
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set pf_prefix $old_pf_prefix
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}
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# Set multiple tracepoints at the same address.
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proc break_trace_same_addr_2 { trace_type1 trace_type2 option } {
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global executable
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global pf_prefix
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global hex
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set old_pf_prefix $pf_prefix
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set pf_prefix "$pf_prefix 2 $trace_type1 $trace_type2 $option:"
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# Start with a fresh gdb.
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clean_restart ${executable}
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if ![runto_main] {
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fail "Can't run to main"
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set pf_prefix $old_pf_prefix
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return -1
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}
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gdb_test_no_output "set breakpoint always-inserted ${option}"
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gdb_test "break end" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "${trace_type1} set_point" \
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"\(Fast t|T\)racepoint \[0-9\] at $hex: file.*" \
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"${trace_type1} set_point (1)"
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gdb_test "${trace_type2} set_point" \
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"\(Fast t|T\)racepoint \[0-9\] at $hex: file.*" \
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"${trace_type2} set_point (2)"
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gdb_test_no_output "tstart"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*" "continue to end"
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gdb_test_no_output "tstop"
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gdb_test "tfind" "Found trace frame 0, tracepoint .*" "tfind frame 0"
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gdb_test "tfind" "Found trace frame 1, tracepoint .*" "tfind frame 1"
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gdb_test "tfind" "Target failed to find requested trace frame\\..*"
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set pf_prefix $old_pf_prefix
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}
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# Set breakpoint and tracepoint at the same address. Delete breakpoint, and verify
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# that tracepoint still works.
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proc break_trace_same_addr_3 { trace_type option } {
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global executable
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global pf_prefix
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global hex
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set old_pf_prefix $pf_prefix
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set pf_prefix "$pf_prefix 3 $trace_type $option:"
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# Start with a fresh gdb.
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clean_restart ${executable}
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if ![runto_main] {
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fail "Can't run to main"
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set pf_prefix $old_pf_prefix
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return -1
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}
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gdb_test_no_output "set breakpoint always-inserted ${option}"
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gdb_test "break marker" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "break end" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "break set_point" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "${trace_type} set_point" "\(Fast t|T\)racepoint \[0-9\] at $hex: file.*"
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gdb_test_no_output "tstart"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*" "continue to marker"
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gdb_test "delete break 4"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*" "continue to end"
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gdb_test_no_output "tstop"
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gdb_test "tfind" "Found trace frame 0, tracepoint .*" "tfind frame 0"
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gdb_test "tfind" "Target failed to find requested trace frame\\..*"
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set pf_prefix $old_pf_prefix
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}
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# Set breakpoint and tracepoint at the same address. Delete tracepoint, and verify
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# that breakpoint still works.
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proc break_trace_same_addr_4 { trace_type option } {
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global executable
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global pf_prefix
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global hex
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set old_pf_prefix $pf_prefix
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set pf_prefix "$pf_prefix 4 $trace_type $option:"
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# Start with a fresh gdb.
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clean_restart ${executable}
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if ![runto_main] {
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fail "Can't run to main"
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set pf_prefix $old_pf_prefix
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return -1
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}
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gdb_test_no_output "set breakpoint always-inserted ${option}"
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gdb_test "break marker" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "break end" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "break set_point" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "${trace_type} set_point" "\(Fast t|T\)racepoint \[0-9\] at $hex: file.*"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*" "continue to marker"
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# Delete tracepoint set on set_point.
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gdb_test "delete trace 5"
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gdb_test "tstart" "No tracepoints defined, not starting trace.*"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*" "continue to set_point"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*" "continue to end"
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gdb_test "tstop" "Trace is not running.*"
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gdb_test "tfind" "Target failed to find requested trace frame\\..*"
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set pf_prefix $old_pf_prefix
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}
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foreach break_always_inserted { "on" "off" } {
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break_trace_same_addr_1 "trace" ${break_always_inserted}
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break_trace_same_addr_2 "trace" "trace" ${break_always_inserted}
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break_trace_same_addr_3 "trace" ${break_always_inserted}
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break_trace_same_addr_4 "trace" ${break_always_inserted}
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}
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set libipa $objdir/../gdbserver/libinproctrace.so
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gdb_load_shlibs $libipa
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# Can't use prepare_for_testing, because that splits compiling into
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# building objects and then linking, and we'd fail with "linker input
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# file unused because linking not done" when building the object.
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if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
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executable [list debug $additional_flags shlib=$libipa] ] != "" } {
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untested "failed to compile ftrace tests"
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return -1
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}
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clean_restart ${executable}
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if ![runto_main] {
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fail "Can't run to main for ftrace tests"
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return 0
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}
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gdb_reinitialize_dir $srcdir/$subdir
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if { [gdb_test "info sharedlibrary" ".*libinproctrace\.so.*" "IPA loaded"] != 0 } {
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untested "Could not find IPA lib loaded"
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} else {
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foreach break_always_inserted { "on" "off" } {
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break_trace_same_addr_1 "ftrace" ${break_always_inserted}
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break_trace_same_addr_2 "trace" "ftrace" ${break_always_inserted}
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break_trace_same_addr_2 "ftrace" "trace" ${break_always_inserted}
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break_trace_same_addr_3 "ftrace" ${break_always_inserted}
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break_trace_same_addr_4 "ftrace" ${break_always_inserted}
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}
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}
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