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# Copyright (C) 2003, 2004, 2006, 2007, 2008 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see .

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@gnu.org

# This file is part of the gdb testsuite.

if $tracelevel {

    strace $tracelevel

}

# Test i386 prologue analyzer.

set prms_id 0

set bug_id 0

if ![istarget "i?86-*-*"] then {

    verbose "Skipping i386 prologue tests."

    return

}

set testfile "i386-prologue"

set srcfile ${testfile}.c

set binfile ${objdir}/${subdir}/${testfile}

# some targets have leading underscores on assembly symbols.

# TODO: detect this automatically

set additional_flags ""

if [istarget "i?86-*-cygwin*"] then {

  set additional_flags "additional_flags=-DSYMBOL_PREFIX=\"_\""

}

# Don't use "debug", so that we don't have line information for the assembly

# fragments.

if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list $additional_flags]] != "" } {

    untested i386-prologue.exp

    return -1

}

# The code used by the tests here encodes some breakpoints by using

# inline assembler.  This will generate a SIGTRAP which will be caught

# by GDB.  At that point the instruction pointer will point at the

# next instruction, and execution can continue without any problems.

# Some systems however (QNX Neutrino, Solaris) will adjust the

# instruction pointer to point at the breakpoint instruction instead.

# On these systems we cannot continue unless we skip it.  This

# procedure takes care of that.

proc skip_breakpoint { msg } {

    gdb_test "if (*(unsigned char *)\$pc == 0xcc)\nset \$pc = \$pc + 1\nend" \

            "" "skip breakpoint in ${msg}"

}

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

#

# Run to `main' where we begin our tests.

#

if ![runto_main] then {

    gdb_suppress_tests

}

# Testcase for standard prologue.

gdb_test "continue" "Program received signal SIGTRAP.*" "continue to standard"

skip_breakpoint standard

gdb_test "backtrace 10" \

        "#0\[ \t\]*$hex in standard.*\r\n#1\[ \t\]*$hex in main.*" \

        "backtrace in standard"

gdb_test "info frame" \

        ".*Saved registers:.*ebp at.*edi at.*eip at.*" \

        "saved registers in standard"

# Testcase from breakpoints/2080 (when %ecx is used)

gdb_test "break *(stack_align_ecx + 7)" \

        "Breakpoint \[0-9\]* at $hex"

gdb_test "continue" \

        "Breakpoint \[0-9\]*.*stack_align_ecx.*" \

        "continue to stack_align_ecx + 7"

gdb_test "backtrace 10" \

        "#0\[ \t\]*$hex in stack_align_ecx.*\r\n#1\[ \t\]*$hex in main.*" \

        "first backtrace in stack_align_ecx"

gdb_test "continue" \

        "Program received signal SIGTRAP.*" \

        "continue in stack_align_ecx"

skip_breakpoint stack_align_ecx

gdb_test "backtrace 10" \

        "#0\[ \t\]*$hex in stack_align_ecx.*\r\n#1\[ \t\]*$hex in main.*" \

        "second backtrace in stack_align_ecx"

gdb_test "info frame" \

        ".*Saved registers:.*ecx at.*ebp at.*edi at.*eip at.*" \

        "saved registers in stack_align_ecx"

# Testcase from breakpoints/2080 (when %edx is used)

gdb_test "break *(stack_align_edx + 7)" \

        "Breakpoint \[0-9\]* at $hex"

gdb_test "continue" \

        "Breakpoint \[0-9\]*.*stack_align_edx.*" \

        "continue to stack_align_edx + 7"

gdb_test "backtrace 10" \

        "#0\[ \t\]*$hex in stack_align_edx.*\r\n#1\[ \t\]*$hex in main.*" \

        "first backtrace in stack_align_edx"

gdb_test "continue" \

        "Program received signal SIGTRAP.*" \

        "continue in stack_align_edx"

skip_breakpoint stack_align_edx

gdb_test "backtrace 10" \

        "#0\[ \t\]*$hex in stack_align_edx.*\r\n#1\[ \t\]*$hex in main.*" \

        "second backtrace in stack_align_edx"

gdb_test "info frame" \

        ".*Saved registers:.*ecx at.*ebp at.*edi at.*eip at.*" \

        "saved registers in stack_align_edx"

# Testcase from breakpoints/2080 (when %eax is used)

gdb_test "break *(stack_align_eax + 7)" \

        "Breakpoint \[0-9\]* at $hex"

gdb_test "continue" \

        "Breakpoint \[0-9\]*.*stack_align_eax.*" \

        "continue to stack_align_eax + 7"

gdb_test "backtrace 10" \

        "#0\[ \t\]*$hex in stack_align_eax.*\r\n#1\[ \t\]*$hex in main.*" \

        "first backtrace in stack_align_eax"

gdb_test "continue" \

        "Program received signal SIGTRAP.*" \

        "continue in stack_align_eax"

skip_breakpoint stack_align_eax

gdb_test "backtrace 10" \

        "#0\[ \t\]*$hex in stack_align_eax.*\r\n#1\[ \t\]*$hex in main.*" \

        "second backtrace in stack_align_eax"

gdb_test "info frame" \

        ".*Saved registers:.*ecx at.*ebp at.*edi at.*eip at.*" \

        "saved registers in stack_align_eax"

# Testcase from symtab/1253.

gdb_test "continue" "Program received signal SIGTRAP.*" "continue to gdb1253"

skip_breakpoint gdb1253

gdb_test "backtrace 10" \

        "#0\[ \t\]*$hex in gdb1253.*\r\n#1\[ \t\]*$hex in main.*" \

        "backtrace in gdb1253"

gdb_test "info frame" \

        ".*Saved registers:.*ebp at.*edi at.*eip at.*" \

        "saved registers in gdb1253"

# Testcase from backtrace/1718.

gdb_test "continue" "Program received signal SIGTRAP.*" "continue to gdb1718"

skip_breakpoint gdb1718

gdb_test "backtrace 10" \

        "#0\[ \t\]*$hex in gdb1718.*\r\n#1\[ \t\]*$hex in main.*" \

        "backtrace in gdb1718"

setup_kfail *-*-* gdb/1718

gdb_test "info frame" \

        ".*Saved registers:.*esi at.*ebx at.*eip at.*" \

        "saved registers in gdb1718"

# Testcase from backtrace/1338.

gdb_test "continue" "Program received signal SIGTRAP.*" "continue to gdb1338"

skip_breakpoint gdb1338

gdb_test "backtrace 10" \

        "#0\[ \t\]*$hex in gdb1338.*\r\n#1\[ \t\]*$hex in main.*" \

        "backtrace in gdb1338"

gdb_test "info frame" \

        ".*Saved registers:.*ebx at.*esi at.*edi at.*eip at.*" \

        "saved registers in gdb1338"

# Testcase jump_at_beginning.

gdb_test_multiple "break jump_at_beginning" \

        "set breakpoint in jump_at_beginning" {

    -re "Breakpoint \[0-9\]* at ($hex).*$gdb_prompt $" {

        gdb_test "x/i $expect_out(1,string)" \

                ".*:.*jmp.*" \

                "check jump_at_beginning prologue end"

    }

    default {

        fail "set breakpoint in jump_at_beginning"

    }

}