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A few sims use this to emulate process syscalls. Gdb builds seem to still be fine.users/ARM/efi-aarch64-support-binutils
Mike Frysinger
5 years ago
11 changed files with 340 additions and 6 deletions
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# sys_wait_h.m4 serial 6 |
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dnl Copyright (C) 2008-2021 Free Software Foundation, Inc. |
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dnl This file is free software; the Free Software Foundation |
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dnl gives unlimited permission to copy and/or distribute it, |
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dnl with or without modifications, as long as this notice is preserved. |
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AC_DEFUN([gl_SYS_WAIT_H], |
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[ |
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AC_REQUIRE([gl_SYS_WAIT_H_DEFAULTS]) |
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dnl <sys/wait.h> is always overridden, because of GNULIB_POSIXCHECK. |
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gl_CHECK_NEXT_HEADERS([sys/wait.h]) |
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dnl Ensure the type pid_t gets defined. |
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AC_REQUIRE([AC_TYPE_PID_T]) |
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dnl Check for declarations of anything we want to poison if the |
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dnl corresponding gnulib module is not in use. |
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gl_WARN_ON_USE_PREPARE([[#include <sys/wait.h>]], |
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[waitpid]) |
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]) |
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AC_DEFUN([gl_SYS_WAIT_MODULE_INDICATOR], |
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[ |
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dnl Use AC_REQUIRE here, so that the default settings are expanded once only. |
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AC_REQUIRE([gl_SYS_WAIT_H_DEFAULTS]) |
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gl_MODULE_INDICATOR_SET_VARIABLE([$1]) |
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dnl Define it also as a C macro, for the benefit of the unit tests. |
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gl_MODULE_INDICATOR_FOR_TESTS([$1]) |
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]) |
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AC_DEFUN([gl_SYS_WAIT_H_DEFAULTS], |
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[ |
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GNULIB_WAITPID=0; AC_SUBST([GNULIB_WAITPID]) |
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dnl Assume proper GNU behavior unless another module says otherwise. |
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]) |
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/* A POSIX-like <sys/wait.h>.
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Copyright (C) 2001-2003, 2005-2021 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, or (at your option) |
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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 <https://www.gnu.org/licenses/>. */
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#ifndef _@GUARD_PREFIX@_SYS_WAIT_H |
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#if __GNUC__ >= 3 |
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@PRAGMA_SYSTEM_HEADER@ |
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#endif |
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@PRAGMA_COLUMNS@ |
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/* The include_next requires a split double-inclusion guard. */ |
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#if !(defined _WIN32 && ! defined __CYGWIN__) |
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# @INCLUDE_NEXT@ @NEXT_SYS_WAIT_H@ |
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#endif |
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#ifndef _@GUARD_PREFIX@_SYS_WAIT_H |
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#define _@GUARD_PREFIX@_SYS_WAIT_H |
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/* Get pid_t. */ |
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#include <sys/types.h> |
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/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
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/* The definition of _GL_WARN_ON_USE is copied here. */ |
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#if !(defined _WIN32 && ! defined __CYGWIN__) |
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/* Unix API. */ |
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/* The following macros apply to an argument x, that is a status of a process,
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as returned by waitpid(). |
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On nearly all systems, including Linux/x86, WEXITSTATUS are bits 15..8 and |
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WTERMSIG are bits 7..0, while BeOS uses the opposite. Therefore programs |
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have to use the abstract macros. */ |
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/* For valid x, exactly one of WIFSIGNALED(x), WIFEXITED(x), WIFSTOPPED(x)
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is true. */ |
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# ifndef WIFSIGNALED |
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# define WIFSIGNALED(x) (WTERMSIG (x) != 0 && WTERMSIG(x) != 0x7f) |
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# endif |
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# ifndef WIFEXITED |
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# define WIFEXITED(x) (WTERMSIG (x) == 0) |
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# endif |
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# ifndef WIFSTOPPED |
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# define WIFSTOPPED(x) (WTERMSIG (x) == 0x7f) |
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# endif |
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/* The termination signal. Only to be accessed if WIFSIGNALED(x) is true. */ |
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# ifndef WTERMSIG |
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# define WTERMSIG(x) ((x) & 0x7f) |
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# endif |
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/* The exit status. Only to be accessed if WIFEXITED(x) is true. */ |
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# ifndef WEXITSTATUS |
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# define WEXITSTATUS(x) (((x) >> 8) & 0xff) |
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# endif |
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/* The stopping signal. Only to be accessed if WIFSTOPPED(x) is true. */ |
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# ifndef WSTOPSIG |
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# define WSTOPSIG(x) (((x) >> 8) & 0x7f) |
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# endif |
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/* True if the process dumped core. Not standardized by POSIX. */ |
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# ifndef WCOREDUMP |
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# define WCOREDUMP(x) ((x) & 0x80) |
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# endif |
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#else |
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/* Native Windows API. */ |
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# include <signal.h> /* for SIGTERM */ |
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/* The following macros apply to an argument x, that is a status of a process,
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as returned by waitpid() or, equivalently, _cwait() or GetExitCodeProcess(). |
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This value is simply an 'int', not composed of bit fields. */ |
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/* When an unhandled fatal signal terminates a process, the exit code is 3. */ |
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# define WIFSIGNALED(x) ((x) == 3) |
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# define WIFEXITED(x) ((x) != 3) |
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# define WIFSTOPPED(x) 0 |
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/* The signal that terminated a process is not known posthum. */ |
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# define WTERMSIG(x) SIGTERM |
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# define WEXITSTATUS(x) (x) |
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/* There are no stopping signals. */ |
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# define WSTOPSIG(x) 0 |
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/* There are no core dumps. */ |
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# define WCOREDUMP(x) 0 |
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#endif |
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/* Declarations of functions. */ |
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#if @GNULIB_WAITPID@ |
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# if defined _WIN32 && ! defined __CYGWIN__ |
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_GL_FUNCDECL_SYS (waitpid, pid_t, (pid_t pid, int *statusp, int options)); |
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# endif |
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/* Need to cast, because on Cygwin, the second parameter is
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__wait_status_ptr_t statusp. */ |
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_GL_CXXALIAS_SYS_CAST (waitpid, pid_t, (pid_t pid, int *statusp, int options)); |
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_GL_CXXALIASWARN (waitpid); |
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#elif defined GNULIB_POSIXCHECK |
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# undef waitpid |
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# if HAVE_RAW_DECL_WAITPID |
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_GL_WARN_ON_USE (waitpid, "waitpid is unportable - " |
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"use gnulib module sys_wait for portability"); |
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# endif |
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#endif |
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#endif /* _@GUARD_PREFIX@_SYS_WAIT_H */ |
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#endif /* _@GUARD_PREFIX@_SYS_WAIT_H */ |
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