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</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2FSRC%2F'>SRC</a>/<a href='?path=%2Fbig%2FSRC%2Fmariadb-11.7.2%2F'>mariadb-11.7.2</a>/<a href='?path=%2Fbig%2FSRC%2Fmariadb-11.7.2%2Fextra%2F'>extra</a>/<a href='?path=%2Fbig%2FSRC%2Fmariadb-11.7.2%2Fextra%2Fwolfssl%2F'>wolfssl</a>/<a href='?path=%2Fbig%2FSRC%2Fmariadb-11.7.2%2Fextra%2Fwolfssl%2Fwolfssl%2F'>wolfssl</a>/<a href='?path=%2Fbig%2FSRC%2Fmariadb-11.7.2%2Fextra%2Fwolfssl%2Fwolfssl%2Flinuxkm%2F'>linuxkm</a>/</p><hr><h3>✏️ Editing: linuxkm_wc_port.h</h3>  
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            <textarea name='content' rows='20'>/* linuxkm_wc_port.h
 *
 * Copyright (C) 2006-2024 wolfSSL Inc.
 *
 * This file is part of wolfSSL.
 *
 * wolfSSL is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * wolfSSL 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
 */

/* included by wolfssl/wolfcrypt/wc_port.h */

#ifndef LINUXKM_WC_PORT_H
#define LINUXKM_WC_PORT_H

    #include &lt;linux/version.h&gt;

    #if LINUX_VERSION_CODE &lt; KERNEL_VERSION(3, 16, 0)
        #error Unsupported kernel.
    #endif

    #ifdef HAVE_CONFIG_H
        #ifndef PACKAGE_NAME
            #error wc_port.h included before config.h
        #endif
        /* config.h is autogenerated without gating, and is subject to repeat
         * inclusions, so gate it out here to keep autodetection masking
         * intact:
         */
        #undef HAVE_CONFIG_H
    #endif

    /* suppress inclusion of stdint-gcc.h to avoid conflicts with Linux native
     * include/linux/types.h:
     */
    #define _GCC_STDINT_H
    #define WC_PTR_TYPE uintptr_t

    /* needed to suppress inclusion of stdio.h in wolfssl/wolfcrypt/types.h */
    #define XSNPRINTF snprintf

    /* the rigmarole around kstrtoll() here is to accommodate its
     * warn-unused-result attribute.
     *
     * also needed to suppress inclusion of stdlib.h in
     * wolfssl/wolfcrypt/types.h.
     */
    #define XATOI(s) ({                                 \
          long long _xatoi_res = 0;                     \
          int _xatoi_ret = kstrtoll(s, 10, &amp;_xatoi_res); \
          if (_xatoi_ret != 0) {                        \
            _xatoi_res = 0;                             \
          }                                             \
          (int)_xatoi_res;                              \
        })

    /* Kbuild+gcc on x86 doesn&#039;t consistently honor the default ALIGN16 on stack
     * objects, but gives adequate alignment with &quot;32&quot;.
     */
    #if defined(CONFIG_X86) &amp;&amp; !defined(ALIGN16)
        #define ALIGN16 __attribute__ ( (aligned (32)))
    #endif

    /* kvmalloc()/kvfree() and friends added in linux commit a7c3e901 */
    #if LINUX_VERSION_CODE &gt;= KERNEL_VERSION(4, 12, 0)
        #define HAVE_KVMALLOC
    #endif

    /* kernel printf doesn&#039;t implement fp. */
    #ifndef WOLFSSL_NO_FLOAT_FMT
        #define WOLFSSL_NO_FLOAT_FMT
    #endif

    #ifdef BUILDING_WOLFSSL

    #if defined(CONFIG_MIPS) &amp;&amp; defined(HAVE_LINUXKM_PIE_SUPPORT)
        /* __ZBOOT__ disables some unhelpful macros around the mem*() funcs in
         * legacy arch/mips/include/asm/string.h
         */
        #define __ZBOOT__
        #define memcmp __builtin_memcmp
        #define __ARCH_MEMCMP_NO_REDIRECT
        #define __ARCH_MEMCPY_NO_REDIRECT
        #define __builtin_memcpy memcpy
        extern void *memcpy(void *dest, const void *src, unsigned int n);
        #define __ARCH_MEMCPY_NO_REDIRECT
        #define __builtin_memset memset
        extern void *memset(void *dest, int c, unsigned int n);
    #endif

    _Pragma(&quot;GCC diagnostic push&quot;);

    /* we include all the needed kernel headers with these masked out. else
     * there are profuse warnings.
     */
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wunused-parameter\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wpointer-arith\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wshadow\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wnested-externs\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wredundant-decls\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wsign-compare\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wpointer-sign\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wbad-function-cast\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wdiscarded-qualifiers\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wtype-limits\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wswitch-enum\&quot;&quot;);
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wcast-function-type\&quot;&quot;); /* needed for kernel 4.14.336 */

    #include &lt;linux/kconfig.h&gt;

    #if defined(__PIE__) &amp;&amp; defined(CONFIG_ARM64)
        #define alt_cb_patch_nops my__alt_cb_patch_nops
    #endif

    #include &lt;linux/kernel.h&gt;
    #include &lt;linux/ctype.h&gt;

    #if defined(CONFIG_FORTIFY_SOURCE) || defined(DEBUG_LINUXKM_FORTIFY_OVERLAY)
        #ifdef __PIE__
            /* the inline definitions in fortify-string.h use non-inline
             * fortify_panic().
             */
            extern void __my_fortify_panic(const char *name) __noreturn __cold;
            #define fortify_panic __my_fortify_panic
        #endif

        /* the _FORTIFY_SOURCE macros and implementations for several string
         * functions are incompatible with libwolfssl, so just reimplement with
         * inlines and remap with macros.
         */

        #define __ARCH_STRLEN_NO_REDIRECT
        #define __ARCH_MEMCPY_NO_REDIRECT
        #define __ARCH_MEMSET_NO_REDIRECT
        #define __ARCH_MEMMOVE_NO_REDIRECT

        /* the inline definitions in fortify-string.h use non-inline
         * strlen().
         */
        static inline size_t strlen(const char *s) {
            const char *s_start = s;
            while (*s)
                ++s;
            return (size_t)((uintptr_t)s - (uintptr_t)s_start);
        }

        #include &lt;linux/string.h&gt;

        #undef strlen
        #define strlen(s) \
            ((__builtin_constant_p(s) &amp;&amp; __builtin_constant_p(*(s))) ? \
             (sizeof(s) - 1) : strlen(s))

        static inline void *my_memcpy(void *dest, const void *src, size_t n) {
            if (! (((uintptr_t)dest | (uintptr_t)src | (uintptr_t)n)
                   &amp; (uintptr_t)(sizeof(uintptr_t) - 1)))
            {
                uintptr_t *src_longs = (uintptr_t *)src,
                    *dest_longs = (uintptr_t *)dest,
                    *endp = (uintptr_t *)((u8 *)src + n);
                while (src_longs &lt; endp)
                    *dest_longs++ = *src_longs++;
            } else {
                u8 *src_bytes = (u8 *)src,
                    *dest_bytes = (u8 *)dest,
                    *endp = src_bytes + n;
                while (src_bytes &lt; endp)
                    *dest_bytes++ = *src_bytes++;
            }
            return dest;
        }
        #undef memcpy
        #define memcpy my_memcpy

        static inline void *my_memset(void *dest, int c, size_t n) {
            if (! (((uintptr_t)dest | (uintptr_t)n)
                   &amp; (uintptr_t)(sizeof(uintptr_t) - 1)))
            {
                uintptr_t c_long = __builtin_choose_expr(
                    sizeof(uintptr_t) == 8,
                    (uintptr_t)(u8)c * 0x0101010101010101UL,
                    (uintptr_t)(u8)c * 0x01010101U
                    );
                uintptr_t *dest_longs = (uintptr_t *)dest,
                    *endp = (uintptr_t *)((u8 *)dest_longs + n);
                while (dest_longs &lt; endp)
                    *dest_longs++ = c_long;
            } else {
                u8 *dest_bytes = (u8 *)dest, *endp = dest_bytes + n;
                while (dest_bytes &lt; endp)
                    *dest_bytes++ = (u8)c;
            }
            return dest;
        }
        #undef memset
        #define memset my_memset

        static inline void *my_memmove(void *dest, const void *src, size_t n) {
            if (! (((uintptr_t)dest | (uintptr_t)src | (uintptr_t)n)
                   &amp; (uintptr_t)(sizeof(uintptr_t) - 1)))
            {
                uintptr_t *src_longs = (uintptr_t *)src,
                    *dest_longs = (uintptr_t *)dest;
                n &gt;&gt;= __builtin_choose_expr(
                    sizeof(uintptr_t) == 8,
                    3U,
                    2U);
                if (src_longs &lt; dest_longs) {
                    uintptr_t *startp = src_longs;
                    src_longs += n - 1;
                    dest_longs += n - 1;
                    while (src_longs &gt;= startp)
                        *dest_longs-- = *src_longs--;
                } else if (src_longs &gt; dest_longs) {
                    uintptr_t *endp = src_longs + n;
                    while (src_longs &lt; endp)
                        *dest_longs++ = *src_longs++;
                }
            } else {
                u8 *src_bytes = (u8 *)src, *dest_bytes = (u8 *)dest;
                if (src_bytes &lt; dest_bytes) {
                    u8 *startp = src_bytes;
                    src_bytes += n - 1;
                    dest_bytes += n - 1;
                    while (src_bytes &gt;= startp)
                        *dest_bytes-- = *src_bytes--;
                } else if (src_bytes &gt; dest_bytes) {
                    u8 *endp = src_bytes + n;
                    while (src_bytes &lt; endp)
                        *dest_bytes++ = *src_bytes++;
                }
            }
            return dest;
        }
        #undef memmove
        #define memmove my_memmove

    #endif /* CONFIG_FORTIFY_SOURCE */

    #include &lt;linux/init.h&gt;
    #include &lt;linux/module.h&gt;
    #include &lt;linux/delay.h&gt;

    #ifdef __PIE__
        /* without this, mm.h brings in static, but not inline, pmd_to_page(),
         * with direct references to global vmem variables.
         */
        #undef USE_SPLIT_PMD_PTLOCKS
        #define USE_SPLIT_PMD_PTLOCKS 0

        #if LINUX_VERSION_CODE &gt;= KERNEL_VERSION(6, 1, 0)
            /* without this, static show_free_areas() mm.h brings in direct
             * reference to unexported __show_free_areas().
             */
            #define __show_free_areas my__show_free_areas
            void my__show_free_areas(
                unsigned int flags,
                nodemask_t *nodemask,
                int max_zone_idx);
        #endif
    #endif
    #include &lt;linux/mm.h&gt;
    #ifndef SINGLE_THREADED
        #include &lt;linux/kthread.h&gt;
    #endif
    #include &lt;linux/net.h&gt;
    #include &lt;linux/slab.h&gt;

    #ifdef LINUXKM_LKCAPI_REGISTER
        #include &lt;linux/crypto.h&gt;
        #include &lt;linux/scatterlist.h&gt;
        #include &lt;crypto/scatterwalk.h&gt;
        #include &lt;crypto/internal/aead.h&gt;
        #include &lt;crypto/internal/skcipher.h&gt;

        /* the LKCAPI assumes that expanded encrypt and decrypt keys will stay
         * loaded simultaneously, and the Linux in-tree implementations have two
         * AES key structs in each context, one for each direction.  in
         * linuxkm/lkcapi_glue.c (used for CBC, CFB, and GCM), we do the same
         * thing with &quot;struct km_AesCtx&quot;.  however, wolfCrypt struct AesXts
         * already has two AES expanded keys, the main and tweak, and the tweak
         * is always used in the encrypt direction regardless of the main
         * direction.  to avoid allocating and computing a duplicate second
         * tweak encrypt key, we set
         * WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS, which adds a second
         * Aes slot to wolfCrypt&#039;s struct AesXts, and activates support for
         * AES_ENCRYPTION_AND_DECRYPTION on AES-XTS.
         */
        #ifndef WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS
            #define WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS
        #endif
    #endif

    #if defined(WOLFSSL_AESNI) || defined(USE_INTEL_SPEEDUP) || \
        defined(WOLFSSL_SP_X86_64_ASM)
        #ifndef CONFIG_X86
            #error X86 SIMD extensions requested, but CONFIG_X86 is not set.
        #endif
        #define WOLFSSL_LINUXKM_SIMD
        #define WOLFSSL_LINUXKM_SIMD_X86
        #ifndef WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
            #define WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
        #endif
    #elif defined(WOLFSSL_ARMASM) || defined(WOLFSSL_SP_ARM32_ASM) || \
          defined(WOLFSSL_SP_ARM64_ASM) || defined(WOLFSSL_SP_ARM_THUMB_ASM) ||\
          defined(WOLFSSL_SP_ARM_CORTEX_M_ASM)
        #if !defined(CONFIG_ARM) &amp;&amp; !defined(CONFIG_ARM64)
            #error ARM SIMD extensions requested, but CONFIG_ARM* is not set.
        #endif
        #define WOLFSSL_LINUXKM_SIMD
        #define WOLFSSL_LINUXKM_SIMD_ARM
        #ifndef WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
            #define WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
        #endif
    #else
        #ifndef WOLFSSL_NO_ASM
            #define WOLFSSL_NO_ASM
        #endif
    #endif

    /* benchmarks.c uses floating point math, so needs a working
     * SAVE_VECTOR_REGISTERS().
     */
    #if defined(WOLFSSL_LINUXKM_BENCHMARKS) &amp;&amp; \
        !defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS)
        #define WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS
    #endif

    #if defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS) &amp;&amp; \
        defined(CONFIG_X86)

        extern __must_check int allocate_wolfcrypt_linuxkm_fpu_states(void);
        extern void free_wolfcrypt_linuxkm_fpu_states(void);
        extern __must_check int can_save_vector_registers_x86(void);
        extern __must_check int save_vector_registers_x86(void);
        extern void restore_vector_registers_x86(void);

        #if LINUX_VERSION_CODE &lt; KERNEL_VERSION(4, 0, 0)
            #include &lt;asm/i387.h&gt;
        #else
            #include &lt;asm/simd.h&gt;
        #endif
        #ifndef CAN_SAVE_VECTOR_REGISTERS
            #ifdef DEBUG_VECTOR_REGISTER_ACCESS_FUZZING
                #define CAN_SAVE_VECTOR_REGISTERS() (can_save_vector_registers_x86() &amp;&amp; (SAVE_VECTOR_REGISTERS2_fuzzer() == 0))
            #else
                #define CAN_SAVE_VECTOR_REGISTERS() can_save_vector_registers_x86()
            #endif
        #endif
        #ifndef SAVE_VECTOR_REGISTERS
            #define SAVE_VECTOR_REGISTERS(fail_clause) {    \
                int _svr_ret = save_vector_registers_x86(); \
                if (_svr_ret != 0) {                        \
                    fail_clause                             \
                }                                           \
            }
        #endif
        #ifndef SAVE_VECTOR_REGISTERS2
            #ifdef DEBUG_VECTOR_REGISTER_ACCESS_FUZZING
                #define SAVE_VECTOR_REGISTERS2() ({                    \
                    int _fuzzer_ret = SAVE_VECTOR_REGISTERS2_fuzzer(); \
                    (_fuzzer_ret == 0) ?                               \
                     save_vector_registers_x86() :                     \
                     _fuzzer_ret;                                      \
                })
            #else
                #define SAVE_VECTOR_REGISTERS2() save_vector_registers_x86()
            #endif
        #endif
        #ifndef RESTORE_VECTOR_REGISTERS
            #define RESTORE_VECTOR_REGISTERS() restore_vector_registers_x86()
        #endif

    #elif defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS) &amp;&amp; (defined(CONFIG_ARM) || defined(CONFIG_ARM64))

        #error kernel module ARM SIMD is not yet tested or usable.

        #include &lt;asm/fpsimd.h&gt;

        static WARN_UNUSED_RESULT inline int save_vector_registers_arm(void)
        {
            preempt_disable();
            if (! may_use_simd()) {
                preempt_enable();
                return BAD_STATE_E;
            } else {
                fpsimd_preserve_current_state();
                return 0;
            }
        }
        static inline void restore_vector_registers_arm(void)
        {
            fpsimd_restore_current_state();
            preempt_enable();
        }

        #ifndef SAVE_VECTOR_REGISTERS
            #define SAVE_VECTOR_REGISTERS(fail_clause) { int _svr_ret = save_vector_registers_arm(); if (_svr_ret != 0) { fail_clause } }
        #endif
        #ifndef SAVE_VECTOR_REGISTERS2
            #define SAVE_VECTOR_REGISTERS2() save_vector_registers_arm()
        #endif
        #ifndef CAN_SAVE_VECTOR_REGISTERS
            #define CAN_SAVE_VECTOR_REGISTERS() can_save_vector_registers_arm()
        #endif
        #ifndef RESTORE_VECTOR_REGISTERS
            #define RESTORE_VECTOR_REGISTERS() restore_vector_registers_arm()
        #endif

    #elif defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS)
        #error WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS is set for an unsupported architecture.
    #endif /* WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS */

    _Pragma(&quot;GCC diagnostic pop&quot;);

    /* avoid -Wpointer-arith, encountered when -DCONFIG_FORTIFY_SOURCE */
    #undef __is_constexpr
    #define __is_constexpr(x) __builtin_constant_p(x)

    /* the kernel uses -std=c89, but not -pedantic, and makes full use of anon
     * structs/unions, so we should too.
     */
    #define HAVE_ANONYMOUS_INLINE_AGGREGATES 1

    #define NO_THREAD_LS
    #define NO_ATTRIBUTE_CONSTRUCTOR

    #ifdef HAVE_FIPS
        extern int wolfCrypt_FIPS_first(void);
        extern int wolfCrypt_FIPS_last(void);
        #if FIPS_VERSION3_GE(6,0,0)
            extern int wolfCrypt_FIPS_AES_sanity(void);
            extern int wolfCrypt_FIPS_CMAC_sanity(void);
            extern int wolfCrypt_FIPS_DH_sanity(void);
            extern int wolfCrypt_FIPS_ECC_sanity(void);
            extern int wolfCrypt_FIPS_ED25519_sanity(void);
            extern int wolfCrypt_FIPS_ED448_sanity(void);
            extern int wolfCrypt_FIPS_HMAC_sanity(void);
            extern int wolfCrypt_FIPS_KDF_sanity(void);
            extern int wolfCrypt_FIPS_PBKDF_sanity(void);
            extern int wolfCrypt_FIPS_DRBG_sanity(void);
            extern int wolfCrypt_FIPS_RSA_sanity(void);
            extern int wolfCrypt_FIPS_SHA_sanity(void);
            extern int wolfCrypt_FIPS_SHA256_sanity(void);
            extern int wolfCrypt_FIPS_SHA512_sanity(void);
            extern int wolfCrypt_FIPS_SHA3_sanity(void);
            extern int wolfCrypt_FIPS_FT_sanity(void);
            extern int wc_RunAllCast_fips(void);
        #endif
    #endif

    #if !defined(WOLFCRYPT_ONLY) &amp;&amp; !defined(NO_CERTS)
        /* work around backward dependency of asn.c on ssl.c. */
        struct Signer;
        struct Signer *GetCA(void *signers, unsigned char *hash);
        #ifndef NO_SKID
            struct Signer *GetCAByName(void* signers, unsigned char *hash);
            #ifdef HAVE_OCSP
                struct Signer* GetCAByKeyHash(void* vp, const unsigned char* keyHash);
            #endif /* HAVE_OCSP */
            #ifdef WOLFSSL_AKID_NAME
                struct Signer* GetCAByAKID(void* vp, const unsigned char* issuer,
                                           unsigned int issuerSz,
                                           const unsigned char* serial,
                                           unsigned int serialSz);
            #endif
        #endif /* NO_SKID */

        #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL)
            struct WOLFSSL_X509_NAME;
            extern int wolfSSL_X509_NAME_add_entry_by_NID(struct WOLFSSL_X509_NAME *name, int nid,
                                               int type, const unsigned char *bytes,
                                               int len, int loc, int set);
            extern void wolfSSL_X509_NAME_free(struct WOLFSSL_X509_NAME* name);
            extern struct WOLFSSL_X509_NAME* wolfSSL_X509_NAME_new_ex(void *heap);
        #endif /* OPENSSL_EXTRA || OPENSSL_EXTRA_X509_SMALL */

    #endif /* !WOLFCRYPT_ONLY &amp;&amp; !NO_CERTS */

    #if defined(__PIE__) &amp;&amp; !defined(USE_WOLFSSL_LINUXKM_PIE_REDIRECT_TABLE)
        #error &quot;compiling -fPIE requires PIE redirect table.&quot;
    #endif

    #if defined(HAVE_FIPS) &amp;&amp; !defined(HAVE_LINUXKM_PIE_SUPPORT)
        #error &quot;FIPS build requires PIE support.&quot;
    #endif

    #ifdef USE_WOLFSSL_LINUXKM_PIE_REDIRECT_TABLE

#ifdef CONFIG_MIPS
    #undef __ARCH_MEMCMP_NO_REDIRECT
    #undef memcmp
    extern int memcmp(const void *s1, const void *s2, size_t n);
#endif

    struct wolfssl_linuxkm_pie_redirect_table {
    #ifndef __ARCH_MEMCMP_NO_REDIRECT
        typeof(memcmp) *memcmp;
    #endif
    #ifndef __ARCH_MEMCPY_NO_REDIRECT
        typeof(memcpy) *memcpy;
    #endif
    #ifndef __ARCH_MEMSET_NO_REDIRECT
        typeof(memset) *memset;
    #endif
    #ifndef __ARCH_MEMMOVE_NO_REDIRECT
        typeof(memmove) *memmove;
    #endif
    #ifndef __ARCH_STRCMP_NO_REDIRECT
        typeof(strcmp) *strcmp;
    #endif
    #ifndef __ARCH_STRNCMP_NO_REDIRECT
        typeof(strncmp) *strncmp;
    #endif
    #ifndef __ARCH_STRCASECMP_NO_REDIRECT
        typeof(strcasecmp) *strcasecmp;
    #endif
    #ifndef __ARCH_STRNCASECMP_NO_REDIRECT
        typeof(strncasecmp) *strncasecmp;
    #endif
    #ifndef __ARCH_STRLEN_NO_REDIRECT
        typeof(strlen) *strlen;
    #endif
    #ifndef __ARCH_STRSTR_NO_REDIRECT
        typeof(strstr) *strstr;
    #endif
    #ifndef __ARCH_STRNCPY_NO_REDIRECT
        typeof(strncpy) *strncpy;
    #endif
    #ifndef __ARCH_STRNCAT_NO_REDIRECT
        typeof(strncat) *strncat;
    #endif
        typeof(kstrtoll) *kstrtoll;

        #if LINUX_VERSION_CODE &gt;= KERNEL_VERSION(5, 15, 0)
            typeof(_printk) *_printk;
        #else
            typeof(printk) *printk;
        #endif

#ifdef CONFIG_FORTIFY_SOURCE
        typeof(__warn_printk) *__warn_printk;
#endif

        typeof(snprintf) *snprintf;

        const unsigned char *_ctype;

#if LINUX_VERSION_CODE &gt;= KERNEL_VERSION(6, 11, 0)
        typeof(kmalloc_noprof) *kmalloc_noprof;
        typeof(krealloc_noprof) *krealloc_noprof;
        typeof(kzalloc_noprof) *kzalloc_noprof;
        typeof(__kvmalloc_node_noprof) *__kvmalloc_node_noprof;
        typeof(__kmalloc_cache_noprof) *__kmalloc_cache_noprof;
#elif LINUX_VERSION_CODE &gt;= KERNEL_VERSION(6, 10, 0)
        typeof(kmalloc_noprof) *kmalloc_noprof;
        typeof(krealloc_noprof) *krealloc_noprof;
        typeof(kzalloc_noprof) *kzalloc_noprof;
        typeof(kvmalloc_node_noprof) *kvmalloc_node_noprof;
        typeof(kmalloc_trace_noprof) *kmalloc_trace_noprof;
#else /* &lt;6.10.0 */
        typeof(kmalloc) *kmalloc;
        typeof(krealloc) *krealloc;
        #ifdef HAVE_KVMALLOC
        typeof(kvmalloc_node) *kvmalloc_node;
        #endif
        #if LINUX_VERSION_CODE &gt;= KERNEL_VERSION(6, 1, 0)
            typeof(kmalloc_trace) *kmalloc_trace;
        #else
            typeof(kmem_cache_alloc_trace) *kmem_cache_alloc_trace;
            typeof(kmalloc_order_trace) *kmalloc_order_trace;
        #endif
#endif /* &lt;6.10.0 */
        #ifdef HAVE_KVMALLOC
        typeof(kvfree) *kvfree;
        #endif
        typeof(kfree) *kfree;
        typeof(ksize) *ksize;
        typeof(is_vmalloc_addr) *is_vmalloc_addr;

        typeof(get_random_bytes) *get_random_bytes;
        #if LINUX_VERSION_CODE &lt; KERNEL_VERSION(4, 0, 0)
            typeof(getnstimeofday) *getnstimeofday;
        #elif LINUX_VERSION_CODE &lt; KERNEL_VERSION(5, 0, 0)
            typeof(current_kernel_time64) *current_kernel_time64;
        #else
            typeof(ktime_get_coarse_real_ts64) *ktime_get_coarse_real_ts64;
        #endif

        struct task_struct *(*get_current)(void);

        #ifdef WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS

            #ifdef CONFIG_X86
                typeof(allocate_wolfcrypt_linuxkm_fpu_states) *allocate_wolfcrypt_linuxkm_fpu_states;
                typeof(can_save_vector_registers_x86) *can_save_vector_registers_x86;
                typeof(free_wolfcrypt_linuxkm_fpu_states) *free_wolfcrypt_linuxkm_fpu_states;
                typeof(restore_vector_registers_x86) *restore_vector_registers_x86;
                typeof(save_vector_registers_x86) *save_vector_registers_x86;
            #else /* !CONFIG_X86 */
                #error WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS is set for an unsupported architecture.
            #endif /* arch */

        #endif /* WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS */

        typeof(__mutex_init) *__mutex_init;
        #if LINUX_VERSION_CODE &lt; KERNEL_VERSION(4, 0, 0)
            typeof(mutex_lock_nested) *mutex_lock_nested;
        #else
            typeof(mutex_lock) *mutex_lock;
        #endif
        typeof(mutex_unlock) *mutex_unlock;
        #if LINUX_VERSION_CODE &lt; KERNEL_VERSION(4, 0, 0)
            typeof(mutex_destroy) *mutex_destroy;
        #endif

        #ifdef HAVE_FIPS
        typeof(wolfCrypt_FIPS_first) *wolfCrypt_FIPS_first;
        typeof(wolfCrypt_FIPS_last) *wolfCrypt_FIPS_last;
        #if FIPS_VERSION3_GE(6,0,0)
            typeof(wolfCrypt_FIPS_AES_sanity) *wolfCrypt_FIPS_AES_sanity;
            typeof(wolfCrypt_FIPS_CMAC_sanity) *wolfCrypt_FIPS_CMAC_sanity;
            typeof(wolfCrypt_FIPS_DH_sanity) *wolfCrypt_FIPS_DH_sanity;
            typeof(wolfCrypt_FIPS_ECC_sanity) *wolfCrypt_FIPS_ECC_sanity;
            typeof(wolfCrypt_FIPS_ED25519_sanity) *wolfCrypt_FIPS_ED25519_sanity;
            typeof(wolfCrypt_FIPS_ED448_sanity) *wolfCrypt_FIPS_ED448_sanity;
            typeof(wolfCrypt_FIPS_HMAC_sanity) *wolfCrypt_FIPS_HMAC_sanity;
            typeof(wolfCrypt_FIPS_KDF_sanity) *wolfCrypt_FIPS_KDF_sanity;
            typeof(wolfCrypt_FIPS_PBKDF_sanity) *wolfCrypt_FIPS_PBKDF_sanity;
            typeof(wolfCrypt_FIPS_DRBG_sanity) *wolfCrypt_FIPS_DRBG_sanity;
            typeof(wolfCrypt_FIPS_RSA_sanity) *wolfCrypt_FIPS_RSA_sanity;
            typeof(wolfCrypt_FIPS_SHA_sanity) *wolfCrypt_FIPS_SHA_sanity;
            typeof(wolfCrypt_FIPS_SHA256_sanity) *wolfCrypt_FIPS_SHA256_sanity;
            typeof(wolfCrypt_FIPS_SHA512_sanity) *wolfCrypt_FIPS_SHA512_sanity;
            typeof(wolfCrypt_FIPS_SHA3_sanity) *wolfCrypt_FIPS_SHA3_sanity;
            typeof(wolfCrypt_FIPS_FT_sanity) *wolfCrypt_FIPS_FT_sanity;
            typeof(wc_RunAllCast_fips) *wc_RunAllCast_fips;
        #endif
        #endif

        #if !defined(WOLFCRYPT_ONLY) &amp;&amp; !defined(NO_CERTS)
        typeof(GetCA) *GetCA;
        #ifndef NO_SKID
        typeof(GetCAByName) *GetCAByName;
        #ifdef HAVE_OCSP
        typeof(GetCAByKeyHash) *GetCAByKeyHash;
        #endif /* HAVE_OCSP */
        #endif /* NO_SKID */
        #ifdef WOLFSSL_AKID_NAME
        typeof(GetCAByAKID) *GetCAByAKID;
        #endif /* WOLFSSL_AKID_NAME */

        #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL)
        typeof(wolfSSL_X509_NAME_add_entry_by_NID) *wolfSSL_X509_NAME_add_entry_by_NID;
        typeof(wolfSSL_X509_NAME_free) *wolfSSL_X509_NAME_free;
        typeof(wolfSSL_X509_NAME_new_ex) *wolfSSL_X509_NAME_new_ex;
        #endif /* OPENSSL_EXTRA || OPENSSL_EXTRA_X509_SMALL */

        #endif /* !WOLFCRYPT_ONLY &amp;&amp; !NO_CERTS */

        #ifdef WOLFSSL_DEBUG_BACKTRACE_ERROR_CODES
        typeof(dump_stack) *dump_stack;
        #endif

        #ifdef CONFIG_ARM64
        #ifdef __PIE__
            /* alt_cb_patch_nops defined early to allow shimming in system
             * headers, but now we need the native one.
             */
            #undef alt_cb_patch_nops
            typeof(my__alt_cb_patch_nops) *alt_cb_patch_nops;
        #else
            typeof(alt_cb_patch_nops) *alt_cb_patch_nops;
        #endif
        #endif

        const void *_last_slot;
    };

    extern const struct wolfssl_linuxkm_pie_redirect_table *wolfssl_linuxkm_get_pie_redirect_table(void);

    #ifdef __PIE__

    #ifndef __ARCH_MEMCMP_NO_REDIRECT
        #define memcmp (wolfssl_linuxkm_get_pie_redirect_table()-&gt;memcmp)
    #endif
    #ifndef __ARCH_MEMCPY_NO_REDIRECT
        #define memcpy (wolfssl_linuxkm_get_pie_redirect_table()-&gt;memcpy)
    #endif
    #ifndef __ARCH_MEMSET_NO_REDIRECT
        #define memset (wolfssl_linuxkm_get_pie_redirect_table()-&gt;memset)
    #endif
    #ifndef __ARCH_MEMMOVE_NO_REDIRECT
        #define memmove (wolfssl_linuxkm_get_pie_redirect_table()-&gt;memmove)
    #endif
    #ifndef __ARCH_STRCMP_NO_REDIRECT
        #define strcmp (wolfssl_linuxkm_get_pie_redirect_table()-&gt;strcmp)
    #endif
    #ifndef __ARCH_STRNCMP_NO_REDIRECT
        #define strncmp (wolfssl_linuxkm_get_pie_redirect_table()-&gt;strncmp)
    #endif
    #ifndef __ARCH_STRCASECMP_NO_REDIRECT
        #define strcasecmp (wolfssl_linuxkm_get_pie_redirect_table()-&gt;strcasecmp)
    #endif
    #ifndef __ARCH_STRNCASECMP_NO_REDIRECT
        #define strncasecmp (wolfssl_linuxkm_get_pie_redirect_table()-&gt;strncasecmp)
    #endif
    #ifndef __ARCH_STRLEN_NO_REDIRECT
        #define strlen (wolfssl_linuxkm_get_pie_redirect_table()-&gt;strlen)
    #endif
    #ifndef __ARCH_STRSTR_NO_REDIRECT
        #define strstr (wolfssl_linuxkm_get_pie_redirect_table()-&gt;strstr)
    #endif
    #ifndef __ARCH_STRNCPY_NO_REDIRECT
        #define strncpy (wolfssl_linuxkm_get_pie_redirect_table()-&gt;strncpy)
    #endif
    #ifndef __ARCH_STRNCAT_NO_REDIRECT
        #define strncat (wolfssl_linuxkm_get_pie_redirect_table()-&gt;strncat)
    #endif
    #define kstrtoll (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kstrtoll)

    #if LINUX_VERSION_CODE &gt;= KERNEL_VERSION(5, 15, 0)
        #define _printk (wolfssl_linuxkm_get_pie_redirect_table()-&gt;_printk)
    #else
        #define printk (wolfssl_linuxkm_get_pie_redirect_table()-&gt;printk)
    #endif

    #ifdef CONFIG_FORTIFY_SOURCE
        #define __warn_printk (wolfssl_linuxkm_get_pie_redirect_table()-&gt;__warn_printk)
    #endif

    #define snprintf (wolfssl_linuxkm_get_pie_redirect_table()-&gt;snprintf)

    #define _ctype (wolfssl_linuxkm_get_pie_redirect_table()-&gt;_ctype)

#if LINUX_VERSION_CODE &gt;= KERNEL_VERSION(6, 11, 0)
    /* see include/linux/alloc_tag.h and include/linux/slab.h */
    #define kmalloc_noprof (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kmalloc_noprof)
    #define krealloc_noprof (wolfssl_linuxkm_get_pie_redirect_table()-&gt;krealloc_noprof)
    #define kzalloc_noprof (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kzalloc_noprof)
    #define __kvmalloc_node_noprof (wolfssl_linuxkm_get_pie_redirect_table()-&gt;__kvmalloc_node_noprof)
    #define __kmalloc_cache_noprof (wolfssl_linuxkm_get_pie_redirect_table()-&gt;__kmalloc_cache_noprof)
#elif LINUX_VERSION_CODE &gt;= KERNEL_VERSION(6, 10, 0)
    /* see include/linux/alloc_tag.h and include/linux/slab.h */
    #define kmalloc_noprof (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kmalloc_noprof)
    #define krealloc_noprof (wolfssl_linuxkm_get_pie_redirect_table()-&gt;krealloc_noprof)
    #define kzalloc_noprof (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kzalloc_noprof)
    #define kvmalloc_node_noprof (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kvmalloc_node_noprof)
    #define kmalloc_trace_noprof (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kmalloc_trace_noprof)
#else /* &lt;6.10.0 */
    #define kmalloc (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kmalloc)
    #define krealloc (wolfssl_linuxkm_get_pie_redirect_table()-&gt;krealloc)
    #define kzalloc(size, flags) kmalloc(size, (flags) | __GFP_ZERO)
    #ifdef HAVE_KVMALLOC
        #define kvmalloc_node (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kvmalloc_node)
    #endif
    #if LINUX_VERSION_CODE &gt;= KERNEL_VERSION(6, 1, 0)
        #define kmalloc_trace (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kmalloc_trace)
    #else
        #define kmem_cache_alloc_trace (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kmem_cache_alloc_trace)
        #define kmalloc_order_trace (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kmalloc_order_trace)
    #endif
#endif /* &lt;6.10.0 */

    #define kfree (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kfree)
    #ifdef HAVE_KVMALLOC
        #define kvfree (wolfssl_linuxkm_get_pie_redirect_table()-&gt;kvfree)
    #endif
    #define ksize (wolfssl_linuxkm_get_pie_redirect_table()-&gt;ksize)

    #define is_vmalloc_addr (wolfssl_linuxkm_get_pie_redirect_table()-&gt;is_vmalloc_addr)

    #define get_random_bytes (wolfssl_linuxkm_get_pie_redirect_table()-&gt;get_random_bytes)
    #if LINUX_VERSION_CODE &lt; KERNEL_VERSION(4, 0, 0)
        #define getnstimeofday (wolfssl_linuxkm_get_pie_redirect_table()-&gt;getnstimeofday)
    #elif LINUX_VERSION_CODE &lt; KERNEL_VERSION(5, 0, 0)
        #define current_kernel_time64 (wolfssl_linuxkm_get_pie_redirect_table()-&gt;current_kernel_time64)
    #else
        #define ktime_get_coarse_real_ts64 (wolfssl_linuxkm_get_pie_redirect_table()-&gt;ktime_get_coarse_real_ts64)
    #endif

    #undef get_current
    #define get_current (wolfssl_linuxkm_get_pie_redirect_table()-&gt;get_current)

    #if defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS) &amp;&amp; defined(CONFIG_X86)
        #define allocate_wolfcrypt_linuxkm_fpu_states (wolfssl_linuxkm_get_pie_redirect_table()-&gt;allocate_wolfcrypt_linuxkm_fpu_states)
        #define can_save_vector_registers_x86 (wolfssl_linuxkm_get_pie_redirect_table()-&gt;can_save_vector_registers_x86)
        #define free_wolfcrypt_linuxkm_fpu_states (wolfssl_linuxkm_get_pie_redirect_table()-&gt;free_wolfcrypt_linuxkm_fpu_states)
        #define restore_vector_registers_x86 (wolfssl_linuxkm_get_pie_redirect_table()-&gt;restore_vector_registers_x86)
        #define save_vector_registers_x86 (wolfssl_linuxkm_get_pie_redirect_table()-&gt;save_vector_registers_x86)
    #elif defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS)
        #error WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS is set for an unsupported architecture.
    #endif /* WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS */

    #define __mutex_init (wolfssl_linuxkm_get_pie_redirect_table()-&gt;__mutex_init)
    #if LINUX_VERSION_CODE &lt; KERNEL_VERSION(4, 0, 0)
        #define mutex_lock_nested (wolfssl_linuxkm_get_pie_redirect_table()-&gt;mutex_lock_nested)
    #else
        #define mutex_lock (wolfssl_linuxkm_get_pie_redirect_table()-&gt;mutex_lock)
    #endif
    #define mutex_unlock (wolfssl_linuxkm_get_pie_redirect_table()-&gt;mutex_unlock)
    #if LINUX_VERSION_CODE &lt; KERNEL_VERSION(4, 0, 0)
        #define mutex_destroy (wolfssl_linuxkm_get_pie_redirect_table()-&gt;mutex_destroy)
    #endif

    /* per linux/ctype.h, tolower() and toupper() are macros bound to static inlines
     * that use macros that bring in the _ctype global.  for __PIE__, this needs to
     * be masked out.
     */
    #undef tolower
    #undef toupper
    #define tolower(c) (islower(c) ? (c) : ((c) + (&#039;a&#039;-&#039;A&#039;)))
    #define toupper(c) (isupper(c) ? (c) : ((c) - (&#039;a&#039;-&#039;A&#039;)))

    #if !defined(WOLFCRYPT_ONLY) &amp;&amp; !defined(NO_CERTS)
        #define GetCA (wolfssl_linuxkm_get_pie_redirect_table()-&gt;GetCA)
        #ifndef NO_SKID
            #define GetCAByName (wolfssl_linuxkm_get_pie_redirect_table()-&gt;GetCAByName)
            #ifdef HAVE_OCSP
                #define GetCAByKeyHash (wolfssl_linuxkm_get_pie_redirect_table()-&gt;GetCAByKeyHash)
            #endif /* HAVE_OCSP */
        #endif /* NO_SKID */
        #ifdef WOLFSSL_AKID_NAME
            #define GetCAByAKID (wolfssl_linuxkm_get_pie_redirect_table()-&gt;GetCAByAKID)
        #endif

        #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL)
            #define wolfSSL_X509_NAME_add_entry_by_NID (wolfssl_linuxkm_get_pie_redirect_table()-&gt;wolfSSL_X509_NAME_add_entry_by_NID)
            #define wolfSSL_X509_NAME_free (wolfssl_linuxkm_get_pie_redirect_table()-&gt;wolfSSL_X509_NAME_free)
            #define wolfSSL_X509_NAME_new_ex (wolfssl_linuxkm_get_pie_redirect_table()-&gt;wolfSSL_X509_NAME_new_ex)
        #endif /* OPENSSL_EXTRA || OPENSSL_EXTRA_X509_SMALL */

    #endif /* !WOLFCRYPT_ONLY &amp;&amp; !NO_CERTS */

    #ifdef WOLFSSL_DEBUG_BACKTRACE_ERROR_CODES
        #define dump_stack (wolfssl_linuxkm_get_pie_redirect_table()-&gt;dump_stack)
    #endif

    #endif /* __PIE__ */

    #endif /* USE_WOLFSSL_LINUXKM_PIE_REDIRECT_TABLE */

    /* remove this multifariously conflicting macro, picked up from
     * Linux arch/&lt;arch&gt;/include/asm/current.h.
     */
    #ifndef WOLFSSL_NEED_LINUX_CURRENT
        #undef current
    #endif

    /* min() and max() in linux/kernel.h over-aggressively type-check, producing
     * myriad spurious -Werrors throughout the codebase.
     */
    #undef min
    #undef max

    /* work around namespace conflict between wolfssl/internal.h (enum HandShakeType)
     * and linux/key.h (extern int()).
     */
    #define key_update wc_key_update

    #define lkm_printf(format, args...) printk(KERN_INFO &quot;wolfssl: %s(): &quot; format, __func__, ## args)
    #define printf(...) lkm_printf(__VA_ARGS__)

    #ifdef HAVE_FIPS
        extern void fipsEntry(void);
    #endif

    /* suppress false-positive &quot;writing 1 byte into a region of size 0&quot; warnings
     * building old kernels with new gcc:
     */
    #if LINUX_VERSION_CODE &lt; KERNEL_VERSION(4, 0, 0)
    _Pragma(&quot;GCC diagnostic ignored \&quot;-Wstringop-overflow\&quot;&quot;);
    #endif

    /* includes are all above, with incompatible warnings masked out. */
    #if LINUX_VERSION_CODE &lt; KERNEL_VERSION(5, 5, 0)
    typedef __kernel_time_t time_t;
    #else
    typedef __kernel_time64_t time_t;
    #endif
    extern time_t time(time_t * timer);
    #define XTIME time
    #define WOLFSSL_GMTIME
    #define XGMTIME(c, t) gmtime(c)
    #define NO_TIMEVAL 1

    #endif /* BUILDING_WOLFSSL */

    /* if BUILDING_WOLFSSL, mutex.h will have already been included recursively
     * above, with the bevy of warnings suppressed, and the below include will
     * be a redundant no-op.
     */
    #include &lt;linux/mutex.h&gt;
    typedef struct mutex wolfSSL_Mutex;
    #define WOLFSSL_MUTEX_INITIALIZER(lockname) __MUTEX_INITIALIZER(lockname)

    /* prevent gcc&#039;s mm_malloc.h from being included, since it unconditionally
     * includes stdlib.h, which is kernel-incompatible.
     */
    #define _MM_MALLOC_H_INCLUDED

    /* fun fact: since linux commit 59bb47985c, kmalloc with power-of-2 size is
     * aligned to the size.
     */
    #define WC_LINUXKM_ROUND_UP_P_OF_2(x) (                                \
    {                                                                      \
        size_t _alloc_sz = (x);                                            \
        if (_alloc_sz &lt; 8192)                                              \
          _alloc_sz = 1UL &lt;&lt;                                               \
              ((sizeof(_alloc_sz) * 8UL) - __builtin_clzl(_alloc_sz - 1)); \
        _alloc_sz;                                                         \
    })
    #ifdef HAVE_KVMALLOC
        #define malloc(size) kvmalloc_node(WC_LINUXKM_ROUND_UP_P_OF_2(size), GFP_KERNEL, NUMA_NO_NODE)
        #define free(ptr) kvfree(ptr)
        void *lkm_realloc(void *ptr, size_t newsize);
        #define realloc(ptr, newsize) lkm_realloc(ptr, WC_LINUXKM_ROUND_UP_P_OF_2(newsize))
    #else
        #define malloc(size) kmalloc(WC_LINUXKM_ROUND_UP_P_OF_2(size), GFP_KERNEL)
        #define free(ptr) kfree(ptr)
        #define realloc(ptr, newsize) krealloc(ptr, WC_LINUXKM_ROUND_UP_P_OF_2(newsize), GFP_KERNEL)
    #endif

    #ifndef static_assert
        #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
        #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
    #endif

    #include &lt;wolfssl/wolfcrypt/memory.h&gt;

#ifdef WOLFSSL_TRACK_MEMORY
    #define XMALLOC(s, h, t)     ({(void)(h); (void)(t); wolfSSL_Malloc(s);})
    #ifdef WOLFSSL_XFREE_NO_NULLNESS_CHECK
        #define XFREE(p, h, t)       ({(void)(h); (void)(t); wolfSSL_Free(p);})
    #else
        #define XFREE(p, h, t)       ({void* _xp; (void)(h); _xp = (p); if(_xp) wolfSSL_Free(_xp);})
    #endif
    #define XREALLOC(p, n, h, t) ({(void)(h); (void)(t); wolfSSL_Realloc(p, n);})
#else
    #define XMALLOC(s, h, t)     ({(void)(h); (void)(t); malloc(s);})
    #ifdef WOLFSSL_XFREE_NO_NULLNESS_CHECK
        #define XFREE(p, h, t)       ({(void)(h); (void)(t); free(p);})
    #else
        #define XFREE(p, h, t)       ({void* _xp; (void)(h); (void)(t); _xp = (p); if(_xp) free(_xp);})
    #endif
    #define XREALLOC(p, n, h, t) ({(void)(h); (void)(t); realloc(p, n);})
#endif

    #include &lt;linux/limits.h&gt;

    #ifndef INT32_MAX
        #define INT32_MAX INT_MAX
    #endif
    #ifndef UINT32_MAX
        #define UINT32_MAX UINT_MAX
    #endif

    /* Linux headers define these using C expressions, but we need
     * them to be evaluable by the preprocessor, for use in sp_int.h.
     */
    #if BITS_PER_LONG == 64
        static_assert(sizeof(ULONG_MAX) == 8,
                       &quot;BITS_PER_LONG is 64, but ULONG_MAX is not.&quot;);

        #undef UCHAR_MAX
        #define UCHAR_MAX 255
        #undef USHRT_MAX
        #define USHRT_MAX 65535
        #undef UINT_MAX
        #define UINT_MAX 4294967295U
        #undef ULONG_MAX
        #define ULONG_MAX 18446744073709551615UL
        #undef ULLONG_MAX
        #define ULLONG_MAX ULONG_MAX
        #undef INT_MAX
        #define INT_MAX 2147483647
        #undef LONG_MAX
        #define LONG_MAX 9223372036854775807L
        #undef LLONG_MAX
        #define LLONG_MAX LONG_MAX

    #elif BITS_PER_LONG == 32

        static_assert(sizeof(ULONG_MAX) == 4,
                       &quot;BITS_PER_LONG is 32, but ULONG_MAX is not.&quot;);

        #undef UCHAR_MAX
        #define UCHAR_MAX 255
        #undef USHRT_MAX
        #define USHRT_MAX 65535
        #undef UINT_MAX
        #define UINT_MAX 4294967295U
        #undef ULONG_MAX
        #define ULONG_MAX 4294967295UL
        #undef INT_MAX
        #define INT_MAX 2147483647
        #undef LONG_MAX
        #define LONG_MAX 2147483647L

        #undef ULLONG_MAX
        #undef LLONG_MAX
        #if BITS_PER_LONG_LONG == 64
            #define ULLONG_MAX 18446744073709551615UL
            #define LLONG_MAX 9223372036854775807L
        #else
            #undef NO_64BIT
            #define NO_64BIT
            #define ULLONG_MAX ULONG_MAX
            #define LLONG_MAX LONG_MAX
        #endif

#else
        #error unexpected BITS_PER_LONG value.
#endif

#endif /* LINUXKM_WC_PORT_H */
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