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Enable gcc-4.8 compilation (#1928)
This commit is contained in:
Marcin Kolny
GitHub
parent
40a14b51c5
commit
17f3375d53
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@ -0,0 +1,14 @@
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/*
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* Copyright (C) 2023 Amazon.com, Inc. or its affiliates. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*/
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#if !defined(__GNUC_PREREQ) && (defined(__GNUC__) || defined(__GNUG__)) \
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&& !defined(__clang__) && defined(__GNUC_MINOR__)
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/* Depending on the platform the macro is defined in sys/features.h or
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features.h Given the macro is simple, we re-implement it here instead of
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dealing with two different paths.
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*/
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#define __GNUC_PREREQ(maj, min) \
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((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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#endif
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@ -1,42 +0,0 @@
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// Part of the Wasmtime Project, under the Apache License v2.0 with LLVM
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// Exceptions. See
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// https://github.com/bytecodealliance/wasmtime/blob/main/LICENSE for license
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// information.
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//
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// Significant parts of this file are derived from cloudabi-utils. See
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// https://github.com/bytecodealliance/wasmtime/blob/main/lib/wasi/sandboxed-system-primitives/src/LICENSE
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// for license information.
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//
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// The upstream file contains the following copyright notice:
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//
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// Copyright (c) 2015 Nuxi, https://nuxi.nl/
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#ifndef COMMON_LIMITS_H
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#define COMMON_LIMITS_H
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#define NUMERIC_MIN(t) \
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_Generic((t)0, char \
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: CHAR_MIN, signed char \
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: SCHAR_MIN, unsigned char : 0, short \
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: SHRT_MIN, unsigned short : 0, int \
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: INT_MIN, unsigned int : 0, long \
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: LONG_MIN, unsigned long : 0, long long \
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: LLONG_MIN, unsigned long long : 0, default \
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: (void)0)
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#define NUMERIC_MAX(t) \
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_Generic((t)0, char \
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: CHAR_MAX, signed char \
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: SCHAR_MAX, unsigned char \
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: UCHAR_MAX, short \
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: SHRT_MAX, unsigned short \
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: USHRT_MAX, int \
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: INT_MAX, unsigned int \
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: UINT_MAX, long \
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: LONG_MAX, unsigned long \
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: ULONG_MAX, long long \
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: LLONG_MAX, unsigned long long \
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: ULLONG_MAX, default \
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: (void)0)
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#endif
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@ -15,7 +15,6 @@
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#include "bh_platform.h"
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#include "wasmtime_ssp.h"
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#include "locking.h"
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#include "numeric_limits.h"
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#include "posix.h"
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#include "random.h"
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#include "refcount.h"
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@ -2257,8 +2256,7 @@ convert_timestamp(__wasi_timestamp_t in, struct timespec *out)
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in /= 1000000000;
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// Clamp to the maximum in case it would overflow our system's time_t.
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out->tv_sec =
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(time_t)in < NUMERIC_MAX(time_t) ? (time_t)in : NUMERIC_MAX(time_t);
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out->tv_sec = (time_t)in < BH_TIME_T_MAX ? (time_t)in : BH_TIME_T_MAX;
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}
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// Converts the provided timestamps and flags to a set of arguments for
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@ -16,6 +16,7 @@
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#include "bh_platform.h"
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#include "locking.h"
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#include "gnuc.h"
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#define PRODUCES(...) LOCKS_SHARED(__VA_ARGS__) NO_LOCK_ANALYSIS
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#define CONSUMES(...) UNLOCKS(__VA_ARGS__) NO_LOCK_ANALYSIS
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@ -95,6 +96,42 @@ refcount_release(struct refcount *r)
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return old == 1;
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}
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#elif defined(__GNUC_PREREQ)
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#if __GNUC_PREREQ(4, 7)
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struct refcount {
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unsigned int count;
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};
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/* Initialize the reference counter. */
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static inline void
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refcount_init(struct refcount *r, unsigned int count)
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{
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__atomic_store_n(&r->count, count, __ATOMIC_SEQ_CST);
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}
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/* Increment the reference counter. */
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static inline void
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refcount_acquire(struct refcount *r)
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{
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__atomic_fetch_add(&r->count, 1, __ATOMIC_ACQUIRE);
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}
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/* Decrement the reference counter, returning whether the reference
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dropped to zero. */
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static inline bool
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refcount_release(struct refcount *r)
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{
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int old = (int)__atomic_fetch_sub(&r->count, 1, __ATOMIC_RELEASE);
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bh_assert(old != 0 && "Reference count becoming negative");
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return old == 1;
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}
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#else /* else of __GNUC_PREREQ (4.7) */
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#error "Reference counter isn't implemented"
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#endif /* end of __GNUC_PREREQ (4.7) */
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#else /* else of CONFIG_HAS_STD_ATOMIC */
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#error "Reference counter isn't implemented"
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#endif /* end of CONFIG_HAS_STD_ATOMIC */
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@ -14,6 +14,7 @@
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#ifndef SSP_CONFIG_H
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#define SSP_CONFIG_H
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#include "gnuc.h"
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#include <stdlib.h>
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#if defined(__FreeBSD__) || defined(__APPLE__) \
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@ -107,10 +108,21 @@
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#endif
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#if !defined(BH_PLATFORM_LINUX_SGX)
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#if defined(__GNUC_PREREQ)
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/* Even though older versions of GCC support C11, atomics were
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not implemented until 4.9. See
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58016 */
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#if __GNUC_PREREQ(4, 9)
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#define CONFIG_HAS_STD_ATOMIC 1
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#else
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#else /* else of __GNUC_PREREQ(4, 9) */
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#define CONFIG_HAS_STD_ATOMIC 0
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#endif
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#endif /* end of __GNUC_PREREQ(4, 9) */
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#else /* else of defined(__GNUC_PREREQ) */
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#define CONFIG_HAS_STD_ATOMIC 1
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#endif /* end of defined(__GNUC_PREREQ) */
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#else /* else of !defined(BH_PLATFORM_LINUX_SGX) */
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#define CONFIG_HAS_STD_ATOMIC 0
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#endif /* end of !defined(BH_PLATFORM_LINUX_SGX) */
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#if !defined(__NuttX__)
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#define CONFIG_HAS_D_INO 1
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