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Diffstat (limited to 'sysdeps/arm/tst-gnu2-tls2.h')
| -rw-r--r-- | sysdeps/arm/tst-gnu2-tls2.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/sysdeps/arm/tst-gnu2-tls2.h b/sysdeps/arm/tst-gnu2-tls2.h new file mode 100644 index 0000000000..e413ac21fb --- /dev/null +++ b/sysdeps/arm/tst-gnu2-tls2.h @@ -0,0 +1,128 @@ +/* Test TLSDESC relocation. ARM version. + Copyright (C) 2024 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> |