75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/* script_test_12a.c -- a test case for gold
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Copyright (C) 2015-2016 Free Software Foundation, Inc.
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Written by Cary Coutant <ccoutant@gmail.com>.
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This file is part of gold.
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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 of the License, or
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(at your option) 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, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA.
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This tests linker script behavior, that gold distinguishes correctly
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between
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*(.x1) *(.x2) *(.x3)
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and
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*(.x1 .x2 .x3)
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in an input section spec. In the first case, the output section
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should contain all .x1 sections, followed by all .x2 sections,
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then all .x3 sections; i.e.:
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script_test_12a.o(.x1)
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script_test_12b.o(.x1)
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script_test_12a.o(.x2)
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script_test_12b.o(.x2)
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script_test_12a.o(.x3)
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script_test_12b.o(.x3)
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In the second case, the output section should interleave the
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.x1, .x2, and .x3 sections in the order seen; i.e.:
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script_test_12a.o(.x1)
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script_test_12a.o(.x2)
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script_test_12a.o(.x3)
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script_test_12b.o(.x1)
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script_test_12b.o(.x2)
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script_test_12b.o(.x3)
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The linker scripts set the absolute symbol INTERLEAVED, which we
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test here to determine which ordering to expect. The scripts also
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define the symbols test_array_start and test_array_end.
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*/
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extern int test_array_start;
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extern int test_array_end;
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extern char interleaved __attribute__((__aligned__(1)));
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int
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main(void)
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{
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int last = 0;
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int *p;
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long should_be_interleaved = (long)&interleaved;
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int mask = (should_be_interleaved == 1 ? 0x7f : 0xff);
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for (p = &test_array_start; p < &test_array_end; ++p)
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{
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int next = *p & mask;
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if (next <= last)
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return 1;
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last = next;
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}
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return 0;
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}
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int a1[] __attribute((section(".x1"))) = { 0x01, 0x02, 0x03, 0x04 };
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int a2[] __attribute((section(".x2"))) = { 0x11, 0x12, 0x13, 0x14};
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int a3[] __attribute((section(".x3"))) = { 0x21, 0x22, 0x23, 0x24 };
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