91570ce987
It's okay for a program to choose to drag in stdio, but it's unfortunate
if even the minimal "int main() { return 42; }" drags in stdio...
This brings the minimal static binary on ARM down from 78KiB to 46KiB.
Given that we don't have a separate -lpthread it's not obvious to me that
we can shave this down any further. I'm not sure whether this is a worthwhile
change for that reason. (And the fact that dynamic binaries, the usual case,
are unaffected either way.)
Change-Id: I02f91dcff37d14354314a30b72fed2563f431c88
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <sys/param.h>
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#include <unistd.h>
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#include "jemalloc.h"
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#include "private/bionic_macros.h"
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void* je_pvalloc(size_t bytes) {
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size_t pagesize = getpagesize();
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size_t size = BIONIC_ALIGN(bytes, pagesize);
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if (size < bytes) {
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return NULL;
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}
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return je_memalign(pagesize, size);
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}
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#ifdef je_memalign
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#undef je_memalign
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#endif
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// The man page for memalign says it fails if boundary is not a power of 2,
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// but this is not true. Both glibc and dlmalloc round up to the next power
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// of 2, so we'll do the same.
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void* je_memalign_round_up_boundary(size_t boundary, size_t size) {
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if (boundary != 0) {
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if (!powerof2(boundary)) {
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boundary = BIONIC_ROUND_UP_POWER_OF_2(boundary);
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}
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} else {
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boundary = 1;
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}
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return je_memalign(boundary, size);
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}
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