From 0bd956720c457ff054325b48f26ac7c91cb060e8 Mon Sep 17 00:00:00 2001 From: Matthew Fortune Date: Sun, 1 Jun 2014 00:16:25 +0100 Subject: Add support for MIPS O32 FPXX and .MIPS.abiflags * elf/elf.h (PT_MIPS_ABIFLAGS): Define. (Elf_MIPS_ABIFlags_v0): New structure. (EF_MIPS_FP64): Define. (MIPS_AFL_REG_NONE, MIPS_AFL_REG_32, MIPS_AFL_REG_64): Likewise. (MIPS_AFL_REG_128, MIPS_AFL_ASE_DSP, MIPS_AFL_ASE_DSP64): Likewise. (MIPS_AFL_ASE_DSPR2, MIPS_AFL_ASE_EVA, MIPS_AFL_ASE_MCU): Likewise. (MIPS_AFL_ASE_MDMX, MIPS_AFL_ASE_MIPS3D, MIPS_AFL_ASE_MT): Likewise. (MIPS_AFL_ASE_SMARTMIPS, MIPS_AFL_ASE_VIRT): Likewise. (MIPS_AFL_ASE_VIRT64, MIPS_AFL_ASE_MSA, MIPS_AFL_ASE_MSA64): Likewise. (MIPS_AFL_ASE_MIPS16, MIPS_AFL_ASE_MICROMIPS): Likewise. (MIPS_AFL_ASE_XPA, MIPS_AFL_EXT_XLR, MIPS_AFL_EXT_OCTEON2): Likewise. (MIPS_AFL_EXT_OCTEONP, MIPS_AFL_EXT_LOONGSON_3A): Likewise. (MIPS_AFL_EXT_OCTEON, MIPS_AFL_EXT_5900, MIPS_AFL_EXT_4010): Likewise. (MIPS_AFL_EXT_4100, MIPS_AFL_EXT_3900, MIPS_AFL_EXT_10000): Likewise. (MIPS_AFL_EXT_SB1, MIPS_AFL_EXT_4111, MIPS_AFL_EXT_4120): Likewise. (MIPS_AFL_EXT_5400, MIPS_AFL_EXT_5500): Likewise. (MIPS_AFL_EXT_LOONGSON_2E, MIPS_AFL_EXT_LOONGSON_2F): Likewise. (Val_GNU_MIPS_ABI_FP_ANY, Val_GNU_MIPS_ABI_FP_DOUBLE): New enum values. (Val_GNU_MIPS_ABI_FP_SINGLE, Val_GNU_MIPS_ABI_FP_SOFT): Likewise. (Val_GNU_MIPS_ABI_FP_OLD_64, Val_GNU_MIPS_ABI_FP_XX): Likewise. (Val_GNU_MIPS_ABI_FP_64, Val_GNU_MIPS_ABI_FP_64A): Likewise. (Val_GNU_MIPS_ABI_FP_MAX): Likewise. * sysdeps/mips/Makefile [subdir=elf]: Add tst-abi-interlink, tst-mode-switch-1, tst-mode-switch-2, tst-mode-switch-3 tests. * sysdeps/mips/bits/linkmap.h (struct link_map_machine): Add fpmode field. * sysdeps/mips/dl-machine.h (elf_machine_matches_host): Reject EF_MIPS_FP64. * sysdeps/mips/dl-machine-reject-phdr.h: New file. * sysdeps/mips/tst-abi-fp32mod.c: Likewise. * sysdeps/mips/tst-abi-fpxxmod.c: Likewise. * sysdeps/mips/tst-abi-fpxxomod.c: Likewise. * sysdeps/mips/tst-abi-fp64mod.c: Likewise. * sysdeps/mips/tst-abi-fp64amod.c: Likewise. * sysdeps/mips/tst-abi-interlink.c: Likewise. * sysdeps/mips/tst-mode-switch-1.c: Likewise. * sysdeps/mips/tst-mode-switch-2.c: Likewise. * sysdeps/mips/tst-mode-switch-3.c: Likewise. * sysdeps/unix/sysv/linux/mips/configure.ac (o32-fpabi): Define to record the current FP ABI extension. (mips-mode-switch): Define to show if kernel headers support mode switching. * sysdeps/unix/sysv/linux/mips/configure: Regenerate. * sysdeps/unix/sysv/linux/mips/ldsodefs.h: Increase maximum supported SYSV ABI version to 3. * sysdeps/unix/sysv/linux/mips/libc-abis: Add new MIPS_O32_FP64 feature. --- sysdeps/mips/tst-mode-switch-1.c | 123 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 sysdeps/mips/tst-mode-switch-1.c (limited to 'sysdeps/mips/tst-mode-switch-1.c') diff --git a/sysdeps/mips/tst-mode-switch-1.c b/sysdeps/mips/tst-mode-switch-1.c new file mode 100644 index 0000000000..eb8d68aae8 --- /dev/null +++ b/sysdeps/mips/tst-mode-switch-1.c @@ -0,0 +1,123 @@ +/* Copyright (C) 2014 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 + . */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#if __mips_fpr != 0 || _MIPS_SPFPSET != 16 +# error This test requires -mfpxx -mno-odd-spreg +#endif + +/* This test verifies that mode changes do not clobber register state + in other threads. */ + +static volatile int finished; +static int mode[6] = + { + 0, + PR_FP_MODE_FR, + PR_FP_MODE_FR | PR_FP_MODE_FRE, + PR_FP_MODE_FR, + 0, + PR_FP_MODE_FR | PR_FP_MODE_FRE + }; + +static void * +thread_function (void * arg __attribute__ ((unused))) +{ + volatile int i = 0; + volatile float f = 0.0; + volatile double d = 0.0; + + while (!finished) + { + if ((float) i != f || (double) i != d) + { + printf ("unexpected value: i(%d) f(%f) d(%f)\n", i, f, d); + exit (1); + } + + if (i == 100) + { + i = 0; + f = 0.0; + d = 0.0; + } + + i++; + f++; + d++; + } + return NULL; +} + +int +main (void) +{ + int count = sysconf (_SC_NPROCESSORS_ONLN); + if (count <= 0) + count = 1; + count *= 4; + + pthread_t th[count]; + int i; + int result = 0; + + for (i = 0; i < count; ++i) + if (pthread_create (&th[i], NULL, thread_function, 0) != 0) + { + printf ("creation of thread %d failed\n", i); + exit (1); + } + + for (i = 0 ; i < 1000000 ; i++) + { + if (prctl (PR_SET_FP_MODE, mode[i % 6]) != 0 + && errno != ENOTSUP) + { + printf ("prctl PR_SET_FP_MODE failed: %m\n"); + exit (1); + } + } + + finished = 1; + + for (i = 0; i < count; ++i) + { + void *v; + if (pthread_join (th[i], &v) != 0) + { + printf ("join of thread %d failed\n", i); + result = 1; + } + else if (v != NULL) + { + printf ("join %d successful, but child failed\n", i); + result = 1; + } + else + printf ("join %d successful\n", i); + } + + return result; +} -- cgit 1.4.1