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/* script_test_12a.c -- a test case for gold
Copyright (C) 2015-2020 Free Software Foundation, Inc.
Written by Cary Coutant <ccoutant@gmail.com>.
This file is part of gold.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA.
This tests linker script behavior, that gold distinguishes correctly
between
*(.x1) *(.x2) *(.x3)
and
*(.x1 .x2 .x3)
in an input section spec. In the first case, the output section
should contain all .x1 sections, followed by all .x2 sections,
then all .x3 sections; i.e.:
script_test_12a.o(.x1)
script_test_12b.o(.x1)
script_test_12a.o(.x2)
script_test_12b.o(.x2)
script_test_12a.o(.x3)
script_test_12b.o(.x3)
In the second case, the output section should interleave the
.x1, .x2, and .x3 sections in the order seen; i.e.:
script_test_12a.o(.x1)
script_test_12a.o(.x2)
script_test_12a.o(.x3)
script_test_12b.o(.x1)
script_test_12b.o(.x2)
script_test_12b.o(.x3)
The linker scripts set the absolute symbol INTERLEAVED, which we
test here to determine which ordering to expect. The scripts also
define the symbols test_array_start and test_array_end.
*/
extern int test_array_start;
extern int test_array_end;
extern char interleaved __attribute__((__aligned__(1)));
int
main(void)
{
int last = 0;
int *p;
long should_be_interleaved = (long)&interleaved;
int mask = (should_be_interleaved == 1 ? 0x7f : 0xff);
for (p = &test_array_start; p < &test_array_end; ++p)
{
int next = *p & mask;
if (next <= last)
return 1;
last = next;
}
return 0;
}
int a1[] __attribute((section(".x1"))) = { 0x01, 0x02, 0x03, 0x04 };
int a2[] __attribute((section(".x2"))) = { 0x11, 0x12, 0x13, 0x14};
int a3[] __attribute((section(".x3"))) = { 0x21, 0x22, 0x23, 0x24 };
int a4[] __attribute((section(".x4"))) = { 0xff, 0xff, 0xff, 0xff };
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