a0be7a3671
I see some failures in the gdb.mi/mi-stack.exp test. The test runs to
the callee4 function:
int callee4 (void)
{
int A=1;
int B=2;
int C;
int D[3] = {0, 1, 2};
C = A + B;
return 0;
}
and expects to be stopped at the A=1 line. However, when gcc generates
some stack protection code, it will stop at the { instead, as shown by
this disassembly (after I did "break callee4" and "run"):
(gdb) disassemble /s
Dump of assembler code for function callee4:
/home/simark/src/binutils-gdb/gdb/testsuite/gdb.mi/mi-stack.c:
26 {
0x00005555555546ca <+0>: push %rbp
0x00005555555546cb <+1>: mov %rsp,%rbp
0x00005555555546ce <+4>: sub $0x20,%rsp
=> 0x00005555555546d2 <+8>: mov %fs:0x28,%rax
0x00005555555546db <+17>: mov %rax,-0x8(%rbp)
0x00005555555546df <+21>: xor %eax,%eax
27 int A=1; /* callee4 begin */
0x00005555555546e1 <+23>: movl $0x1,-0x20(%rbp)
28 int B=2;
0x00005555555546e8 <+30>: movl $0x2,-0x1c(%rbp)
The rest of the test relies on execution stopping on the A=1, so many things
fail after that. This patch uses mi_continue_to_line instead, to stop at the
A=1 line precisely.
gdb/testsuite/ChangeLog:
* gdb.mi/mi-stack.exp (test_stack_frame_listing): Use
mi_continue_to_line.
* gdb.mi/mi-stack.c (callee4): Add comment.
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/* Copyright 1999-2018 Free Software Foundation, Inc.
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This file is part of GDB.
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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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* This simple program that passes different types of arguments
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* on function calls. Useful to test printing frames, stepping, etc.
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*/
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#include <stdio.h>
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int callee4 (void)
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{
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int A=1; /* callee4 begin */
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int B=2;
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int C;
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int D[3] = {0, 1, 2};
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C = A + B;
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return 0;
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}
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void callee3 (char *strarg)
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{
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callee4 ();
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}
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void callee2 (int intarg, char *strarg)
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{
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callee3 (strarg);
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}
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void callee1 (int intarg, char *strarg, double fltarg)
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{
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callee2 (intarg, strarg);
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}
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int main ()
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{
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callee1 (2, "A string argument.", 3.5);
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callee1 (2, "A string argument.", 3.5);
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printf ("Hello, World!");
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return 0;
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}
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