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- /* Test TLSDESC relocation. ARM version.
- Copyright (C) 2024-2026 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library 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
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <https://www.gnu.org/licenses/>. */
- #include <config.h>
- #include <sys/auxv.h>
- #include <string.h>
- #include <stdlib.h>
- #include <endian.h>
- #ifndef __SOFTFP__
- # ifdef HAVE_ARM_PCS_VFP_D32
- # define SAVE_VFP_D32 \
- asm volatile ("vldr d16,=17" : : : "d16"); \
- asm volatile ("vldr d17,=18" : : : "d17"); \
- asm volatile ("vldr d18,=19" : : : "d18"); \
- asm volatile ("vldr d19,=20" : : : "d19"); \
- asm volatile ("vldr d20,=21" : : : "d20"); \
- asm volatile ("vldr d21,=22" : : : "d21"); \
- asm volatile ("vldr d22,=23" : : : "d22"); \
- asm volatile ("vldr d23,=24" : : : "d23"); \
- asm volatile ("vldr d24,=25" : : : "d24"); \
- asm volatile ("vldr d25,=26" : : : "d25"); \
- asm volatile ("vldr d26,=27" : : : "d26"); \
- asm volatile ("vldr d27,=28" : : : "d27"); \
- asm volatile ("vldr d28,=29" : : : "d28"); \
- asm volatile ("vldr d29,=30" : : : "d29"); \
- asm volatile ("vldr d30,=31" : : : "d30"); \
- asm volatile ("vldr d31,=32" : : : "d31");
- # else
- # define SAVE_VFP_D32
- # endif
- # define INIT_TLSDESC_CALL() \
- unsigned long hwcap = getauxval (AT_HWCAP)
- /* Set each vector register to a value from 1 to 32 before the TLS access,
- dump to memory after TLS access, and compare with the expected values. */
- # define BEFORE_TLSDESC_CALL() \
- if (hwcap & HWCAP_ARM_VFP) \
- { \
- asm volatile ("vldr d0,=1" : : : "d0"); \
- asm volatile ("vldr d1,=2" : : : "d1"); \
- asm volatile ("vldr d2,=3" : : : "d1"); \
- asm volatile ("vldr d3,=4" : : : "d3"); \
- asm volatile ("vldr d4,=5" : : : "d4"); \
- asm volatile ("vldr d5,=6" : : : "d5"); \
- asm volatile ("vldr d6,=7" : : : "d6"); \
- asm volatile ("vldr d7,=8" : : : "d7"); \
- asm volatile ("vldr d8,=9" : : : "d8"); \
- asm volatile ("vldr d9,=10" : : : "d9"); \
- asm volatile ("vldr d10,=11" : : : "d10"); \
- asm volatile ("vldr d11,=12" : : : "d11"); \
- asm volatile ("vldr d12,=13" : : : "d12"); \
- asm volatile ("vldr d13,=14" : : : "d13"); \
- asm volatile ("vldr d14,=15" : : : "d14"); \
- asm volatile ("vldr d15,=16" : : : "d15"); \
- } \
- if (hwcap & HWCAP_ARM_VFPD32) \
- { \
- SAVE_VFP_D32 \
- }
- # define VFP_STACK_REQ (16*8)
- # if __BYTE_ORDER == __BIG_ENDIAN
- # define DISP 7
- # else
- # define DISP 0
- # endif
- # ifdef HAVE_ARM_PCS_VFP_D32
- # define CHECK_VFP_D32 \
- char vfp[VFP_STACK_REQ]; \
- asm volatile ("vstmia %0, {d16-d31}\n" \
- : \
- : "r" (vfp) \
- : "memory"); \
- \
- char expected[VFP_STACK_REQ] = { 0 }; \
- for (int i = 0; i < 16; ++i) \
- expected[i * 8 + DISP] = i + 17; \
- \
- if (memcmp (vfp, expected, VFP_STACK_REQ) != 0) \
- abort ();
- # else
- # define CHECK_VFP_D32
- # endif
- # define AFTER_TLSDESC_CALL() \
- if (hwcap & HWCAP_ARM_VFP) \
- { \
- char vfp[VFP_STACK_REQ]; \
- asm volatile ("vstmia %0, {d0-d15}\n" \
- : \
- : "r" (vfp) \
- : "memory"); \
- \
- char expected[VFP_STACK_REQ] = { 0 }; \
- for (int i = 0; i < 16; ++i) \
- expected[i * 8 + DISP] = i + 1; \
- \
- if (memcmp (vfp, expected, VFP_STACK_REQ) != 0) \
- abort (); \
- } \
- if (hwcap & HWCAP_ARM_VFPD32) \
- { \
- CHECK_VFP_D32 \
- }
- #endif /* __SOFTFP__ */
- #include_next <tst-gnu2-tls2.h>
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