diff options
Diffstat (limited to 'lzo/src/lzo_init.c')
| -rw-r--r-- | lzo/src/lzo_init.c | 195 |
1 files changed, 129 insertions, 66 deletions
diff --git a/lzo/src/lzo_init.c b/lzo/src/lzo_init.c index 6977891d..142e95cd 100644 --- a/lzo/src/lzo_init.c +++ b/lzo/src/lzo_init.c @@ -2,19 +2,7 @@ This file is part of the LZO real-time data compression library. - Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer All Rights Reserved. The LZO library is free software; you can redistribute it and/or @@ -56,65 +44,146 @@ #if !defined(__LZO_IN_MINILZO) -#define ACC_WANT_ACC_CHK_CH 1 -#undef ACCCHK_ASSERT -#include "miniacc.h" +#define LZO_WANT_ACC_CHK_CH 1 +#undef LZOCHK_ASSERT +#include "lzo_supp.h" - ACCCHK_ASSERT_IS_SIGNED_T(lzo_int) - ACCCHK_ASSERT_IS_UNSIGNED_T(lzo_uint) - - ACCCHK_ASSERT_IS_SIGNED_T(lzo_int32) - ACCCHK_ASSERT_IS_UNSIGNED_T(lzo_uint32) - ACCCHK_ASSERT((LZO_UINT32_C(1) << (int)(8*sizeof(LZO_UINT32_C(1))-1)) > 0) - ACCCHK_ASSERT(sizeof(lzo_uint32) >= 4) - -#if !defined(__LZO_UINTPTR_T_IS_POINTER) - ACCCHK_ASSERT_IS_UNSIGNED_T(lzo_uintptr_t) + LZOCHK_ASSERT((LZO_UINT32_C(1) << (int)(8*sizeof(LZO_UINT32_C(1))-1)) > 0) + LZOCHK_ASSERT_IS_SIGNED_T(lzo_int) + LZOCHK_ASSERT_IS_UNSIGNED_T(lzo_uint) +#if !(__LZO_UINTPTR_T_IS_POINTER) + LZOCHK_ASSERT_IS_UNSIGNED_T(lzo_uintptr_t) #endif - ACCCHK_ASSERT(sizeof(lzo_uintptr_t) >= sizeof(lzo_voidp)) - - ACCCHK_ASSERT_IS_UNSIGNED_T(lzo_xint) - ACCCHK_ASSERT(sizeof(lzo_xint) >= sizeof(lzo_uint32)) - ACCCHK_ASSERT(sizeof(lzo_xint) >= sizeof(lzo_uint)) - ACCCHK_ASSERT(sizeof(lzo_xint) == sizeof(lzo_uint32) || sizeof(lzo_xint) == sizeof(lzo_uint)) + LZOCHK_ASSERT(sizeof(lzo_uintptr_t) >= sizeof(lzo_voidp)) + LZOCHK_ASSERT_IS_UNSIGNED_T(lzo_xint) #endif -#undef ACCCHK_ASSERT +#undef LZOCHK_ASSERT /*********************************************************************** // ************************************************************************/ +union lzo_config_check_union { + lzo_uint a[2]; + unsigned char b[2*LZO_MAX(8,sizeof(lzo_uint))]; +#if defined(lzo_uint64_t) + lzo_uint64_t c[2]; +#endif +}; + + +#if 0 +#define u2p(ptr,off) ((lzo_voidp) (((lzo_bytep)(lzo_voidp)(ptr)) + (off))) +#else +static __lzo_noinline lzo_voidp u2p(lzo_voidp ptr, lzo_uint off) +{ + return (lzo_voidp) ((lzo_bytep) ptr + off); +} +#endif + + LZO_PUBLIC(int) _lzo_config_check(void) { - lzo_bool r = 1; - union { unsigned char c[2*sizeof(lzo_xint)]; lzo_xint l[2]; } u; - lzo_uintptr_t p; - -#if !defined(LZO_CFG_NO_CONFIG_CHECK) -#if defined(LZO_ABI_BIG_ENDIAN) - u.l[0] = u.l[1] = 0; u.c[sizeof(lzo_xint) - 1] = 128; - r &= (u.l[0] == 128); +#if (LZO_CC_CLANG && (LZO_CC_CLANG >= 0x030100ul && LZO_CC_CLANG < 0x030300ul)) +# if 0 + /* work around a clang 3.1 and clang 3.2 compiler bug; clang 3.3 and 3.4 work */ + volatile +# endif +#endif + union lzo_config_check_union u; + lzo_voidp p; + unsigned r = 1; + + u.a[0] = u.a[1] = 0; + p = u2p(&u, 0); + r &= ((* (lzo_bytep) p) == 0); +#if !(LZO_CFG_NO_CONFIG_CHECK) +#if (LZO_ABI_BIG_ENDIAN) + u.a[0] = u.a[1] = 0; u.b[sizeof(lzo_uint) - 1] = 128; + p = u2p(&u, 0); + r &= ((* (lzo_uintp) p) == 128); +#endif +#if (LZO_ABI_LITTLE_ENDIAN) + u.a[0] = u.a[1] = 0; u.b[0] = 128; + p = u2p(&u, 0); + r &= ((* (lzo_uintp) p) == 128); +#endif + u.a[0] = u.a[1] = 0; + u.b[0] = 1; u.b[3] = 2; + p = u2p(&u, 1); + r &= UA_GET_NE16(p) == 0; + r &= UA_GET_LE16(p) == 0; + u.b[1] = 128; + r &= UA_GET_LE16(p) == 128; + u.b[2] = 129; + r &= UA_GET_LE16(p) == LZO_UINT16_C(0x8180); +#if (LZO_ABI_BIG_ENDIAN) + r &= UA_GET_NE16(p) == LZO_UINT16_C(0x8081); +#endif +#if (LZO_ABI_LITTLE_ENDIAN) + r &= UA_GET_NE16(p) == LZO_UINT16_C(0x8180); +#endif + u.a[0] = u.a[1] = 0; + u.b[0] = 3; u.b[5] = 4; + p = u2p(&u, 1); + r &= UA_GET_NE32(p) == 0; + r &= UA_GET_LE32(p) == 0; + u.b[1] = 128; + r &= UA_GET_LE32(p) == 128; + u.b[2] = 129; u.b[3] = 130; u.b[4] = 131; + r &= UA_GET_LE32(p) == LZO_UINT32_C(0x83828180); +#if (LZO_ABI_BIG_ENDIAN) + r &= UA_GET_NE32(p) == LZO_UINT32_C(0x80818283); #endif -#if defined(LZO_ABI_LITTLE_ENDIAN) - u.l[0] = u.l[1] = 0; u.c[0] = 128; - r &= (u.l[0] == 128); +#if (LZO_ABI_LITTLE_ENDIAN) + r &= UA_GET_NE32(p) == LZO_UINT32_C(0x83828180); #endif -#if defined(LZO_UNALIGNED_OK_2) - p = (lzo_uintptr_t) (const lzo_voidp) &u.c[0]; - u.l[0] = u.l[1] = 0; - r &= ((* (const lzo_ushortp) (p+1)) == 0); +#if defined(UA_GET_NE64) + u.c[0] = u.c[1] = 0; + u.b[0] = 5; u.b[9] = 6; + p = u2p(&u, 1); + u.c[0] = u.c[1] = 0; + r &= UA_GET_NE64(p) == 0; +#if defined(UA_GET_LE64) + r &= UA_GET_LE64(p) == 0; + u.b[1] = 128; + r &= UA_GET_LE64(p) == 128; #endif -#if defined(LZO_UNALIGNED_OK_4) - p = (lzo_uintptr_t) (const lzo_voidp) &u.c[0]; - u.l[0] = u.l[1] = 0; - r &= ((* (const lzo_uint32p) (p+1)) == 0); #endif +#if defined(lzo_bitops_ctlz32) + { unsigned i = 0; lzo_uint32_t v; + for (v = 1; v != 0 && r == 1; v <<= 1, i++) { + r &= lzo_bitops_ctlz32(v) == 31 - i; + r &= lzo_bitops_ctlz32_func(v) == 31 - i; + }} #endif +#if defined(lzo_bitops_ctlz64) + { unsigned i = 0; lzo_uint64_t v; + for (v = 1; v != 0 && r == 1; v <<= 1, i++) { + r &= lzo_bitops_ctlz64(v) == 63 - i; + r &= lzo_bitops_ctlz64_func(v) == 63 - i; + }} +#endif +#if defined(lzo_bitops_cttz32) + { unsigned i = 0; lzo_uint32_t v; + for (v = 1; v != 0 && r == 1; v <<= 1, i++) { + r &= lzo_bitops_cttz32(v) == i; + r &= lzo_bitops_cttz32_func(v) == i; + }} +#endif +#if defined(lzo_bitops_cttz64) + { unsigned i = 0; lzo_uint64_t v; + for (v = 1; v != 0 && r == 1; v <<= 1, i++) { + r &= lzo_bitops_cttz64(v) == i; + r &= lzo_bitops_cttz64_func(v) == i; + }} +#endif +#endif + LZO_UNUSED_FUNC(lzo_bitops_unused_funcs); - LZO_UNUSED(u); LZO_UNUSED(p); return r == 1 ? LZO_E_OK : LZO_E_ERROR; } @@ -123,8 +192,6 @@ _lzo_config_check(void) // ************************************************************************/ -int __lzo_init_done = 0; - LZO_PUBLIC(int) __lzo_init_v2(unsigned v, int s1, int s2, int s3, int s4, int s5, int s6, int s7, int s8, int s9) @@ -134,14 +201,12 @@ __lzo_init_v2(unsigned v, int s1, int s2, int s3, int s4, int s5, #if defined(__LZO_IN_MINILZO) #elif (LZO_CC_MSC && ((_MSC_VER) < 700)) #else -#define ACC_WANT_ACC_CHK_CH 1 -#undef ACCCHK_ASSERT -#define ACCCHK_ASSERT(expr) LZO_COMPILE_TIME_ASSERT(expr) -#include "miniacc.h" +#define LZO_WANT_ACC_CHK_CH 1 +#undef LZOCHK_ASSERT +#define LZOCHK_ASSERT(expr) LZO_COMPILE_TIME_ASSERT(expr) +#include "lzo_supp.h" #endif -#undef ACCCHK_ASSERT - - __lzo_init_done = 1; +#undef LZOCHK_ASSERT if (v == 0) return LZO_E_ERROR; @@ -149,7 +214,7 @@ __lzo_init_v2(unsigned v, int s1, int s2, int s3, int s4, int s5, r = (s1 == -1 || s1 == (int) sizeof(short)) && (s2 == -1 || s2 == (int) sizeof(int)) && (s3 == -1 || s3 == (int) sizeof(long)) && - (s4 == -1 || s4 == (int) sizeof(lzo_uint32)) && + (s4 == -1 || s4 == (int) sizeof(lzo_uint32_t)) && (s5 == -1 || s5 == (int) sizeof(lzo_uint)) && (s6 == -1 || s6 == (int) lzo_sizeof_dict_t) && (s7 == -1 || s7 == (int) sizeof(char *)) && @@ -171,6 +236,4 @@ __lzo_init_v2(unsigned v, int s1, int s2, int s3, int s4, int s5, #endif -/* -vi:ts=4:et -*/ +/* vim:set ts=4 sw=4 et: */ |