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b1f3975f1d
Because it bumps the alignment requirement on aarch64, we make the elfhack test create more relocations to make the .rela.dyn section large enough for the test to pass. Differential Revision: https://phabricator.services.mozilla.com/D181684
222 lines
4.6 KiB
C
222 lines
4.6 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifdef DEF
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DEF(This)
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DEF(is)
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DEF(a)
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DEF(test)
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DEF(of)
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DEF(string)
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DEF(array)
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DEF(for)
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DEF(use)
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DEF(with)
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DEF(elfhack)
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DEF(to)
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DEF(see)
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DEF(whether)
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DEF(it)
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DEF(breaks)
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DEF(anything)
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DEF(but)
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DEF(one)
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DEF(needs)
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DEF(quite)
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DEF(some)
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DEF(strings)
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DEF(before)
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DEF(the)
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DEF(program)
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DEF(can)
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DEF(do)
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DEF(its)
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DEF(work)
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DEF(efficiently)
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DEF(Without)
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DEF(enough)
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DEF(data)
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DEF(relocation)
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DEF(sections)
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DEF(are)
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// clang-format off
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DEF(not)
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// clang-format on
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DEF(sufficiently)
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DEF(large)
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DEF(and)
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DEF(injected)
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DEF(code)
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DEF(wouldnt)
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DEF(fit)
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DEF(Said)
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DEF(otherwise)
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DEF(we)
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DEF(need)
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DEF(more)
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DEF(words)
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DEF(than)
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DEF(up)
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DEF(here)
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DEF(so)
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DEF(that)
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DEF(relocations)
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DEF(take)
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DEF(significant)
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DEF(bytes)
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DEF(amounts)
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DEF(which)
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DEF(isnt)
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DEF(exactly)
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DEF(easily)
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DEF(achieved)
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DEF(like)
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DEF(this)
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DEF(Actually)
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DEF(I)
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DEF(must)
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DEF(cheat)
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DEF(by)
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DEF(including)
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DEF(these)
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DEF(phrases)
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DEF(several)
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DEF(times)
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#else
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# pragma GCC visibility push(default)
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# include <stdlib.h>
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# include <stdio.h>
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# define DEF(w) static const char str_##w[] = #w;
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# include "test.c"
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# undef DEF
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const char* strings[] = {
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# define DEF(w) str_##w,
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# include "test.c"
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# include "test.c"
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# include "test.c"
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};
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/* Create a hole between two zones of relative relocations */
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int small_hole[] = {42, 42, 42, 42};
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const char* strings2[] = {
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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};
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/* Create a bigger hole between two zones of relative relocations */
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int bigger_hole[] = {
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42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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};
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const char* strings3[] = {
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# undef DEF
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};
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static int ret = 1;
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int print_status() {
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fprintf(stderr, "%s\n", ret ? "FAIL" : "PASS");
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return ret;
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}
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/* On ARM, this creates a .tbss section before .init_array, which
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* elfhack could then pick instead of .init_array.
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* Also, when .tbss is big enough, elfhack may wrongfully consider
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* following sections as part of the PT_TLS segment.
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* Finally, gold makes TLS segments end on an aligned virtual address,
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* even when the underlying section ends before that, and elfhack
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* sanity checks may yield an error. */
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__thread int foo;
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__thread long long int bar[512];
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/* We need a .bss that can hold at least 2 pointers. The static in
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* end_test() plus this variable should do. */
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size_t dummy;
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void end_test() {
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static size_t count = 0;
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/* Only exit when both constructors have been called */
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if (++count == 2) {
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ret = 0;
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// Avoid the dummy variable being stripped out at link time because
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// it's unused.
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dummy = 1;
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}
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}
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void test() {
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int i = 0, j = 0, k = 0;
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# define DEF_(a, i, w) \
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if (a[i++] != str_##w) return;
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# define DEF(w) DEF_(strings, i, w)
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# undef DEF
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# define DEF(w) DEF_(strings2, j, w)
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# undef DEF
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# define DEF(w) DEF_(strings3, k, w)
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# include "test.c"
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# undef DEF
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if (i != sizeof(strings) / sizeof(strings[0]) &&
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j != sizeof(strings2) / sizeof(strings2[0]) &&
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k != sizeof(strings3) / sizeof(strings3[0]))
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fprintf(stderr, "WARNING: Test doesn't cover the whole array\n");
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end_test();
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}
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# pragma GCC visibility pop
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#endif
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