tweaks for ARM32: recognize R_ARM_* relocations, and add -fno-unwind-tables to PIE_FLAGS.
linuxkm/linuxkm_wc_port.h:
* __PIE__: don't declare static pmd_to_page() unless USE_SPLIT_PMD_PTLOCKS.
* add wc_lkm_refcount_to_int() helper with -Wnested-externs suppressed.
wolfcrypt/src/fe_operations.c: in fe_frombytes() and fe_sq2(), use explicit XMEMSET()s to initialize working vars, rather than implicit, to avoid implicit (unshimmable) memset() calls.
wolfcrypt/src/ge_operations.c: fix gate on _wc_curve25519_dummy() to require CURVED25519_ASM.
wolfcrypt/src/wc_port.c and wolfssl/wolfcrypt/wc_port.h: tweak gates on atomic implementations to maximize availability within currently supported targets;
fix some whitespace.
The label L_521_mont_reduce_9_nomask is therefore appearing more than
once in the compiled code.
Adding '%=' to the end of the label ensure it has a unique number
appended to it even when inlined.
Change all left shifts to be of unsigned values.
In some cases the values were negative.
Changed 128-bit variable implementation of Curve25519. (generated)
Changed Ed25519 C implementation.
Changed Curve448 C implementation. (generated)
Changed Ed448 C implementation. (generated)
globally rename+unify:
* HAVE_LINUXKM_PIE_SUPPORT and USE_WOLFSSL_LINUXKM_PIE_REDIRECT_TABLE under gate WC_PIE_RELOC_TABLES
* WC_LKM_INDIRECT_SYM_BY_FUNC_ONLY as WC_PIE_INDIRECT_SYM_BY_FUNC_ONLY
* WC_LKM_INDIRECT_SYM_BY_DIRECT_TABLE_READ as WC_PIE_INDIRECT_SYM_BY_DIRECT_TABLE_READ
* WC_LKM_INDIRECT_SYM() as WC_PIE_INDIRECT_SYM;
linuxkm/linuxkm_wc_port.h:
* implement pointer-caching inline wolfssl_linuxkm_get_pie_redirect_table_local() for the WC_PIE_INDIRECT_SYM_BY_FUNC_ONLY path;
* for FIPS_VERSION3_GE(6,0,0), add wolfCrypt_FIPS_*_ro_sanity pointers to struct wolfssl_linuxkm_pie_redirect_table, and corresponding ad hoc prototypes;
linuxkm/Makefile and linuxkm/module_hooks.c: move wc_linuxkm_pie_reloc_tab into the wolfCrypt PIE container;
linuxkm/module_hooks.c and linuxkm/linuxkm_wc_port.h: harmonize the types of __wc_{text,rodata}_{start,end} with wolfCrypt_FIPS_{first,last,ro_start,ro_end} to allow drop-in use of the all-inclusive ELF fenceposts, activated by WC_USE_PIE_FENCEPOSTS_FOR_FIPS.
wolfcrypt/src/chacha.c and wolfssl/wolfcrypt/chacha.h: implement USE_ARM_CHACHA_SPEEDUP gate;
wolfcrypt/src/kdf.c: in wc_SSH_KDF(), add early return if _HashInit() fails (fixes _HashFree() of uninited _hash);
wolfcrypt/src/sha256.c: initialize sha256->W in ARMASM variant of wc_InitSha256_ex(), and pass sha256->heap to XMALLOC/XFREE consistently.
