mirror of
https://sourceware.org/git/binutils-gdb.git
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213516ef31
This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
120 lines
3.4 KiB
Plaintext
120 lines
3.4 KiB
Plaintext
dnl Copyright (C) 2012-2023 Free Software Foundation, Inc.
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dnl
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dnl This file is part of GDB.
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dnl
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dnl This program is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl This program is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
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dnl Check the return and argument types of ptrace.
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AC_DEFUN([GDB_AC_PTRACE],
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[
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AC_CHECK_HEADERS([sys/ptrace.h ptrace.h])
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gdb_ptrace_headers='
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#include <sys/types.h>
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#if HAVE_SYS_PTRACE_H
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# include <sys/ptrace.h>
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#endif
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#if HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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'
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# Check return type. Varargs (used on GNU/Linux) conflict with the
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# empty argument list, so check for that explicitly.
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AC_CACHE_CHECK(
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[return type of ptrace],
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[gdb_cv_func_ptrace_ret],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[$gdb_ptrace_headers],
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[extern long ptrace (enum __ptrace_request, ...);]
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)],
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[gdb_cv_func_ptrace_ret='long'],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[$gdb_ptrace_headers],
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[extern int ptrace ();]
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)],
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[gdb_cv_func_ptrace_ret='int'],
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[gdb_cv_func_ptrace_ret='long']
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)]
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)]
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)
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AC_DEFINE_UNQUOTED(
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[PTRACE_TYPE_RET],
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[$gdb_cv_func_ptrace_ret],
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[Define as the return type of ptrace.]
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)
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# Check argument types.
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AC_CACHE_CHECK(
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[types of arguments for ptrace],
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[gdb_cv_func_ptrace_args],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[$gdb_ptrace_headers],
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[extern long ptrace (enum __ptrace_request, ...);]
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)],
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[gdb_cv_func_ptrace_args='enum __ptrace_request,int,long,long'],
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[for gdb_arg1 in 'int' 'long'; do
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for gdb_arg2 in 'pid_t' 'int' 'long'; do
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for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
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for gdb_arg4 in 'int' 'long' 'void *'; do
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[$gdb_ptrace_headers],
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[extern $gdb_cv_func_ptrace_ret ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);]
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)],
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[gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
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break 4;]
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)
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for gdb_arg5 in 'int *' 'int' 'long'; do
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[$gdb_ptrace_headers],
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[extern $gdb_cv_func_ptrace_ret ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);]
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)],
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[gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
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break 5;]
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)
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done
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done
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done
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done
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done
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# Provide a safe default value.
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: ${gdb_cv_func_ptrace_args='int,int,long,long'}]
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)]
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)
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ac_save_IFS=$IFS; IFS=','
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set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
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IFS=$ac_save_IFS
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shift
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AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG1, $[1],
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[Define to the type of arg 1 for ptrace.])
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AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
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[Define to the type of arg 3 for ptrace.])
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AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG4, $[4],
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[Define to the type of arg 4 for ptrace.])
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if test -n "$[5]"; then
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AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
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[Define to the type of arg 5 for ptrace.])
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fi
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])
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