/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2015, Joyent, Inc. */ /* LINTLIBRARY */ /* * String conversion routine for hardware capabilities types. */ #include #include #include #include #include #include #include #include /* * Given a literal string, generate an initialization for an * elfcap_str_t value. */ #define STRDESC(_str) { _str, sizeof (_str) - 1 } /* * The items in the elfcap_desc_t arrays are required to be * ordered so that the array index is related to the * c_val field as: * * array[ndx].c_val = 2^ndx * * meaning that * * array[0].c_val = 2^0 = 1 * array[1].c_val = 2^1 = 2 * array[2].c_val = 2^2 = 4 * . * . * . * * Since 0 is not a valid value for the c_val field, we use it to * mark an array entry that is a placeholder. This can happen if there * is a hole in the assigned bits. * * The RESERVED_ELFCAP_DESC macro is used to reserve such holes. */ #define RESERVED_ELFCAP_DESC { 0, { NULL, 0 }, { NULL, 0 }, { NULL, 0 } } /* * Define separators for output string processing. This must be kept in * sync with the elfcap_fmt_t values in elfcap.h. */ static const elfcap_str_t format[] = { STRDESC(" "), /* ELFCAP_FMT_SNGSPACE */ STRDESC(" "), /* ELFCAP_FMT_DBLSPACE */ STRDESC(" | ") /* ELFCAP_FMT_PIPSPACE */ }; #define FORMAT_NELTS (sizeof (format) / sizeof (format[0])) /* * Define all known software capabilities in all the supported styles. * Order the capabilities by their numeric value. See SF1_SUNW_ * values in sys/elf.h. */ static const elfcap_desc_t sf1[ELFCAP_NUM_SF1] = { { /* 0x00000001 */ SF1_SUNW_FPKNWN, STRDESC("SF1_SUNW_FPKNWN"), STRDESC("FPKNWN"), STRDESC("fpknwn") }, { /* 0x00000002 */ SF1_SUNW_FPUSED, STRDESC("SF1_SUNW_FPUSED"), STRDESC("FPUSED"), STRDESC("fpused"), }, { /* 0x00000004 */ SF1_SUNW_ADDR32, STRDESC("SF1_SUNW_ADDR32"), STRDESC("ADDR32"), STRDESC("addr32"), } }; /* * Order the SPARC hardware capabilities to match their numeric value. See * AV_SPARC_ values in sys/auxv_SPARC.h. */ static const elfcap_desc_t hw1_sparc[ELFCAP_NUM_HW1_SPARC] = { { /* 0x00000001 */ AV_SPARC_MUL32, STRDESC("AV_SPARC_MUL32"), STRDESC("MUL32"), STRDESC("mul32"), }, { /* 0x00000002 */ AV_SPARC_DIV32, STRDESC("AV_SPARC_DIV32"), STRDESC("DIV32"), STRDESC("div32"), }, { /* 0x00000004 */ AV_SPARC_FSMULD, STRDESC("AV_SPARC_FSMULD"), STRDESC("FSMULD"), STRDESC("fsmuld"), }, { /* 0x00000008 */ AV_SPARC_V8PLUS, STRDESC("AV_SPARC_V8PLUS"), STRDESC("V8PLUS"), STRDESC("v8plus"), }, { /* 0x00000010 */ AV_SPARC_POPC, STRDESC("AV_SPARC_POPC"), STRDESC("POPC"), STRDESC("popc"), }, { /* 0x00000020 */ AV_SPARC_VIS, STRDESC("AV_SPARC_VIS"), STRDESC("VIS"), STRDESC("vis"), }, { /* 0x00000040 */ AV_SPARC_VIS2, STRDESC("AV_SPARC_VIS2"), STRDESC("VIS2"), STRDESC("vis2"), }, { /* 0x00000080 */ AV_SPARC_ASI_BLK_INIT, STRDESC("AV_SPARC_ASI_BLK_INIT"), STRDESC("ASI_BLK_INIT"), STRDESC("asi_blk_init"), }, { /* 0x00000100 */ AV_SPARC_FMAF, STRDESC("AV_SPARC_FMAF"), STRDESC("FMAF"), STRDESC("fmaf"), }, RESERVED_ELFCAP_DESC, /* 0x00000200 */ { /* 0x00000400 */ AV_SPARC_VIS3, STRDESC("AV_SPARC_VIS3"), STRDESC("VIS3"), STRDESC("vis3"), }, { /* 0x00000800 */ AV_SPARC_HPC, STRDESC("AV_SPARC_HPC"), STRDESC("HPC"), STRDESC("hpc"), }, { /* 0x00001000 */ AV_SPARC_RANDOM, STRDESC("AV_SPARC_RANDOM"), STRDESC("RANDOM"), STRDESC("random"), }, { /* 0x00002000 */ AV_SPARC_TRANS, STRDESC("AV_SPARC_TRANS"), STRDESC("TRANS"), STRDESC("trans"), }, { /* 0x00004000 */ AV_SPARC_FJFMAU, STRDESC("AV_SPARC_FJFMAU"), STRDESC("FJFMAU"), STRDESC("fjfmau"), }, { /* 0x00008000 */ AV_SPARC_IMA, STRDESC("AV_SPARC_IMA"), STRDESC("IMA"), STRDESC("ima"), }, { /* 0x00010000 */ AV_SPARC_ASI_CACHE_SPARING, STRDESC("AV_SPARC_ASI_CACHE_SPARING"), STRDESC("CSPARE"), STRDESC("cspare"), } }; /* * Order the Intel hardware capabilities to match their numeric value. See * AV_386_ values in sys/auxv_386.h. */ static const elfcap_desc_t hw1_386[ELFCAP_NUM_HW1_386] = { { /* 0x00000001 */ AV_386_FPU, STRDESC("AV_386_FPU"), STRDESC("FPU"), STRDESC("fpu"), }, { /* 0x00000002 */ AV_386_TSC, STRDESC("AV_386_TSC"), STRDESC("TSC"), STRDESC("tsc"), }, { /* 0x00000004 */ AV_386_CX8, STRDESC("AV_386_CX8"), STRDESC("CX8"), STRDESC("cx8"), }, { /* 0x00000008 */ AV_386_SEP, STRDESC("AV_386_SEP"), STRDESC("SEP"), STRDESC("sep"), }, { /* 0x00000010 */ AV_386_AMD_SYSC, STRDESC("AV_386_AMD_SYSC"), STRDESC("AMD_SYSC"), STRDESC("amd_sysc"), }, { /* 0x00000020 */ AV_386_CMOV, STRDESC("AV_386_CMOV"), STRDESC("CMOV"), STRDESC("cmov"), }, { /* 0x00000040 */ AV_386_MMX, STRDESC("AV_386_MMX"), STRDESC("MMX"), STRDESC("mmx"), }, { /* 0x00000080 */ AV_386_AMD_MMX, STRDESC("AV_386_AMD_MMX"), STRDESC("AMD_MMX"), STRDESC("amd_mmx"), }, { /* 0x00000100 */ AV_386_AMD_3DNow, STRDESC("AV_386_AMD_3DNow"), STRDESC("AMD_3DNow"), STRDESC("amd_3dnow"), }, { /* 0x00000200 */ AV_386_AMD_3DNowx, STRDESC("AV_386_AMD_3DNowx"), STRDESC("AMD_3DNowx"), STRDESC("amd_3dnowx"), }, { /* 0x00000400 */ AV_386_FXSR, STRDESC("AV_386_FXSR"), STRDESC("FXSR"), STRDESC("fxsr"), }, { /* 0x00000800 */ AV_386_SSE, STRDESC("AV_386_SSE"), STRDESC("SSE"), STRDESC("sse"), }, { /* 0x00001000 */ AV_386_SSE2, STRDESC("AV_386_SSE2"), STRDESC("SSE2"), STRDESC("sse2"), }, /* 0x02000 withdrawn - do not assign */ { /* 0x00004000 */ AV_386_SSE3, STRDESC("AV_386_SSE3"), STRDESC("SSE3"), STRDESC("sse3"), }, /* 0x08000 withdrawn - do not assign */ { /* 0x00010000 */ AV_386_CX16, STRDESC("AV_386_CX16"), STRDESC("CX16"), STRDESC("cx16"), }, { /* 0x00020000 */ AV_386_AHF, STRDESC("AV_386_AHF"), STRDESC("AHF"), STRDESC("ahf"), }, { /* 0x00040000 */ AV_386_TSCP, STRDESC("AV_386_TSCP"), STRDESC("TSCP"), STRDESC("tscp"), }, { /* 0x00080000 */ AV_386_AMD_SSE4A, STRDESC("AV_386_AMD_SSE4A"), STRDESC("AMD_SSE4A"), STRDESC("amd_sse4a"), }, { /* 0x00100000 */ AV_386_POPCNT, STRDESC("AV_386_POPCNT"), STRDESC("POPCNT"), STRDESC("popcnt"), }, { /* 0x00200000 */ AV_386_AMD_LZCNT, STRDESC("AV_386_AMD_LZCNT"), STRDESC("AMD_LZCNT"), STRDESC("amd_lzcnt"), }, { /* 0x00400000 */ AV_386_SSSE3, STRDESC("AV_386_SSSE3"), STRDESC("SSSE3"), STRDESC("ssse3"), }, { /* 0x00800000 */ AV_386_SSE4_1, STRDESC("AV_386_SSE4_1"), STRDESC("SSE4.1"), STRDESC("sse4.1"), }, { /* 0x01000000 */ AV_386_SSE4_2, STRDESC("AV_386_SSE4_2"), STRDESC("SSE4.2"), STRDESC("sse4.2"), }, { /* 0x02000000 */ AV_386_MOVBE, STRDESC("AV_386_MOVBE"), STRDESC("MOVBE"), STRDESC("movbe"), }, { /* 0x04000000 */ AV_386_AES, STRDESC("AV_386_AES"), STRDESC("AES"), STRDESC("aes"), }, { /* 0x08000000 */ AV_386_PCLMULQDQ, STRDESC("AV_386_PCLMULQDQ"), STRDESC("PCLMULQDQ"), STRDESC("pclmulqdq"), }, { /* 0x10000000 */ AV_386_XSAVE, STRDESC("AV_386_XSAVE"), STRDESC("XSAVE"), STRDESC("xsave"), }, { /* 0x20000000 */ AV_386_AVX, STRDESC("AV_386_AVX"), STRDESC("AVX"), STRDESC("avx"), }, { /* 0x40000000 */ AV_386_VMX, STRDESC("AV_386_VMX"), STRDESC("VMX"), STRDESC("vmx"), }, { /* 0x80000000 */ AV_386_AMD_SVM, STRDESC("AV_386_AMD_SVM"), STRDESC("AMD_SVM"), STRDESC("amd_svm"), } }; static const elfcap_desc_t hw2_386[ELFCAP_NUM_HW2_386] = { { /* 0x00000001 */ AV_386_2_F16C, STRDESC("AV_386_2_F16C"), STRDESC("F16C"), STRDESC("f16c"), }, { /* 0x00000002 */ AV_386_2_RDRAND, STRDESC("AV_386_2_RDRAND"), STRDESC("RDRAND"), STRDESC("rdrand"), }, { /* 0x00000004 */ AV_386_2_BMI1, STRDESC("AV_386_2_BMI1"), STRDESC("BMI1"), STRDESC("bmi1"), }, { /* 0x00000008 */ AV_386_2_BMI2, STRDESC("AV_386_2_BMI2"), STRDESC("BMI2"), STRDESC("bmi2"), }, { /* 0x00000010 */ AV_386_2_FMA, STRDESC("AV_386_2_FMA"), STRDESC("FMA"), STRDESC("fma"), }, { /* 0x00000020 */ AV_386_2_AVX2, STRDESC("AV_386_2_AVX2"), STRDESC("AVX2"), STRDESC("avx2"), }, { /* 0x00000040 */ AV_386_2_ADX, STRDESC("AV_386_2_ADX"), STRDESC("ADX"), STRDESC("adx"), }, { /* 0x00000080 */ AV_386_2_RDSEED, STRDESC("AV_386_2_RDSEED"), STRDESC("RDSEED"), STRDESC("rdseed"), }, { /* 0x00100000 */ AV_386_2_SHA, STRDESC("AV_386_2_SHA"), STRDESC("SHA"), STRDESC("sha"), } }; /* * Concatenate a token to the string buffer. This can be a capabilities token * or a separator token. */ static elfcap_err_t token(char **ostr, size_t *olen, const elfcap_str_t *nstr) { if (*olen < nstr->s_len) return (ELFCAP_ERR_BUFOVFL); (void) strcat(*ostr, nstr->s_str); *ostr += nstr->s_len; *olen -= nstr->s_len; return (ELFCAP_ERR_NONE); } static elfcap_err_t get_str_desc(elfcap_style_t style, const elfcap_desc_t *cdp, const elfcap_str_t **ret_str) { switch (ELFCAP_STYLE_MASK(style)) { case ELFCAP_STYLE_FULL: *ret_str = &cdp->c_full; break; case ELFCAP_STYLE_UC: *ret_str = &cdp->c_uc; break; case ELFCAP_STYLE_LC: *ret_str = &cdp->c_lc; break; default: return (ELFCAP_ERR_INVSTYLE); } return (ELFCAP_ERR_NONE); } /* * Expand a capabilities value into the strings defined in the associated * capabilities descriptor. */ static elfcap_err_t expand(elfcap_style_t style, elfcap_mask_t val, const elfcap_desc_t *cdp, uint_t cnum, char *str, size_t slen, elfcap_fmt_t fmt) { uint_t cnt; int follow = 0, err; const elfcap_str_t *nstr; if (val == 0) return (ELFCAP_ERR_NONE); for (cnt = cnum; cnt > 0; cnt--) { uint_t mask = cdp[cnt - 1].c_val; if ((val & mask) != 0) { if (follow++ && ((err = token(&str, &slen, &format[fmt])) != ELFCAP_ERR_NONE)) return (err); err = get_str_desc(style, &cdp[cnt - 1], &nstr); if (err != ELFCAP_ERR_NONE) return (err); if ((err = token(&str, &slen, nstr)) != ELFCAP_ERR_NONE) return (err); val = val & ~mask; } } /* * If there are any unknown bits remaining display the numeric value. */ if (val) { if (follow && ((err = token(&str, &slen, &format[fmt])) != ELFCAP_ERR_NONE)) return (err); (void) snprintf(str, slen, "0x%x", val); } return (ELFCAP_ERR_NONE); } /* * Expand a CA_SUNW_HW_1 value. */ elfcap_err_t elfcap_hw1_to_str(elfcap_style_t style, elfcap_mask_t val, char *str, size_t len, elfcap_fmt_t fmt, ushort_t mach) { /* * Initialize the string buffer, and validate the format request. */ *str = '\0'; if ((fmt < 0) || (fmt >= FORMAT_NELTS)) return (ELFCAP_ERR_INVFMT); if ((mach == EM_386) || (mach == EM_IA_64) || (mach == EM_AMD64)) return (expand(style, val, &hw1_386[0], ELFCAP_NUM_HW1_386, str, len, fmt)); if ((mach == EM_SPARC) || (mach == EM_SPARC32PLUS) || (mach == EM_SPARCV9)) return (expand(style, val, hw1_sparc, ELFCAP_NUM_HW1_SPARC, str, len, fmt)); return (ELFCAP_ERR_UNKMACH); } /* * Expand a CA_SUNW_HW_2 value. */ elfcap_err_t elfcap_hw2_to_str(elfcap_style_t style, elfcap_mask_t val, char *str, size_t len, elfcap_fmt_t fmt, ushort_t mach) { /* * Initialize the string buffer, and validate the format request. */ *str = '\0'; if ((fmt < 0) || (fmt >= FORMAT_NELTS)) return (ELFCAP_ERR_INVFMT); if ((mach == EM_386) || (mach == EM_IA_64) || (mach == EM_AMD64)) return (expand(style, val, &hw2_386[0], ELFCAP_NUM_HW2_386, str, len, fmt)); return (expand(style, val, NULL, 0, str, len, fmt)); } /* * Expand a CA_SUNW_SF_1 value. Note, that at present these capabilities are * common across all platforms. The use of "mach" is therefore redundant, but * is retained for compatibility with the interface of elfcap_hw1_to_str(), and * possible future expansion. */ elfcap_err_t /* ARGSUSED4 */ elfcap_sf1_to_str(elfcap_style_t style, elfcap_mask_t val, char *str, size_t len, elfcap_fmt_t fmt, ushort_t mach) { /* * Initialize the string buffer, and validate the format request. */ *str = '\0'; if ((fmt < 0) || (fmt >= FORMAT_NELTS)) return (ELFCAP_ERR_INVFMT); return (expand(style, val, &sf1[0], ELFCAP_NUM_SF1, str, len, fmt)); } /* * Given a capability tag type and value, map it to a string representation. */ elfcap_err_t elfcap_tag_to_str(elfcap_style_t style, uint64_t tag, elfcap_mask_t val, char *str, size_t len, elfcap_fmt_t fmt, ushort_t mach) { switch (tag) { case CA_SUNW_HW_1: return (elfcap_hw1_to_str(style, val, str, len, fmt, mach)); case CA_SUNW_SF_1: return (elfcap_sf1_to_str(style, val, str, len, fmt, mach)); case CA_SUNW_HW_2: return (elfcap_hw2_to_str(style, val, str, len, fmt, mach)); } return (ELFCAP_ERR_UNKTAG); } /* * Determine a capabilities value from a capabilities string. */ static elfcap_mask_t value(elfcap_style_t style, const char *str, const elfcap_desc_t *cdp, uint_t cnum) { const elfcap_str_t *nstr; uint_t num; int err; for (num = 0; num < cnum; num++) { /* * Skip "reserved" bits. These are unassigned bits in the * middle of the assigned range. */ if (cdp[num].c_val == 0) continue; if ((err = get_str_desc(style, &cdp[num], &nstr)) != 0) return (err); if (style & ELFCAP_STYLE_F_ICMP) { if (strcasecmp(str, nstr->s_str) == 0) return (cdp[num].c_val); } else { if (strcmp(str, nstr->s_str) == 0) return (cdp[num].c_val); } } return (0); } elfcap_mask_t elfcap_sf1_from_str(elfcap_style_t style, const char *str, ushort_t mach) { return (value(style, str, &sf1[0], ELFCAP_NUM_SF1)); } elfcap_mask_t elfcap_hw1_from_str(elfcap_style_t style, const char *str, ushort_t mach) { if ((mach == EM_386) || (mach == EM_IA_64) || (mach == EM_AMD64)) return (value(style, str, &hw1_386[0], ELFCAP_NUM_HW1_386)); if ((mach == EM_SPARC) || (mach == EM_SPARC32PLUS) || (mach == EM_SPARCV9)) return (value(style, str, hw1_sparc, ELFCAP_NUM_HW1_SPARC)); return (0); } elfcap_mask_t elfcap_hw2_from_str(elfcap_style_t style, const char *str, ushort_t mach) { if ((mach == EM_386) || (mach == EM_IA_64) || (mach == EM_AMD64)) return (value(style, str, &hw2_386[0], ELFCAP_NUM_HW2_386)); return (0); } /* * Given a capability tag type and value, return the capabilities values * contained in the string. */ elfcap_mask_t elfcap_tag_from_str(elfcap_style_t style, uint64_t tag, const char *str, ushort_t mach) { switch (tag) { case CA_SUNW_HW_1: return (elfcap_hw1_from_str(style, str, mach)); case CA_SUNW_SF_1: return (elfcap_sf1_from_str(style, str, mach)); case CA_SUNW_HW_2: return (elfcap_hw2_from_str(style, str, mach)); } return (0); } /* * These functions allow the caller to get direct access to the * cap descriptors. */ const elfcap_desc_t * elfcap_getdesc_hw1_sparc(void) { return (hw1_sparc); } const elfcap_desc_t * elfcap_getdesc_hw1_386(void) { return (hw1_386); } const elfcap_desc_t * elfcap_getdesc_sf1(void) { return (sf1); }