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Thumbs inline ASM IAR: fix register clobber list

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Change register clobber list so that it reserves the same registers for
constants regardless of WOLFSSL_NO_VAR_ASSIGN_REG.
This commit is contained in:
Sean Parkinson
2024-02-07 10:24:54 +10:00
parent ac81d9d29c
commit fff4effe31
3 changed files with 70 additions and 29 deletions
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93
wolfcrypt/src/port/arm/thumb2-aes-asm_c.c
View File

@ -310,11 +310,12 @@ void AES_invert_key(unsigned char* ks, word32 rounds)
: [ks] "+r" (ks), [rounds] "+r" (rounds),
[L_AES_Thumb2_te] "+r" (L_AES_Thumb2_te_c), [L_AES_Thumb2_td] "+r" (L_AES_Thumb2_td_c)
:
: "memory", "r12", "lr", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "cc"
#else
: [ks] "+r" (ks), [rounds] "+r" (rounds)
: [L_AES_Thumb2_te] "r" (L_AES_Thumb2_te), [L_AES_Thumb2_td] "r" (L_AES_Thumb2_td)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r12", "lr", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
}
@ -558,11 +559,12 @@ void AES_set_encrypt_key(const unsigned char* key, word32 len, unsigned char* ks
: [key] "+r" (key), [len] "+r" (len), [ks] "+r" (ks),
[L_AES_Thumb2_te] "+r" (L_AES_Thumb2_te_c), [L_AES_Thumb2_rcon] "+r" (L_AES_Thumb2_rcon_c)
:
: "memory", "r12", "lr", "r5", "r6", "r7", "r8", "r9", "r10", "cc"
#else
: [key] "+r" (key), [len] "+r" (len), [ks] "+r" (ks)
: [L_AES_Thumb2_te] "r" (L_AES_Thumb2_te), [L_AES_Thumb2_rcon] "r" (L_AES_Thumb2_rcon)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r12", "lr", "r5", "r6", "r7", "r8", "r9", "r10", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
}
@ -969,12 +971,16 @@ void AES_ECB_encrypt(const unsigned char* in, unsigned char* out, unsigned long
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr),
[L_AES_Thumb2_te_ecb] "+r" (L_AES_Thumb2_te_ecb_c)
:
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr)
: [L_AES_Thumb2_te_ecb] "r" (L_AES_Thumb2_te_ecb)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r12", "lr", "r6", "r7", "r8", "r9", "r10", "r11", "cc"
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks)
: [L_AES_Thumb2_te_ecb] "r" (L_AES_Thumb2_te_ecb)
: "memory", "r12", "lr", "r4", "r6", "r7", "r8", "r9", "r10", "r11", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
#ifdef WOLFSSL_NO_VAR_ASSIGN_REG
(void)nr;
#endif /* !WOLFSSL_NO_VAR_ASSIGN_REG */
}
#endif /* HAVE_AESCCM || HAVE_AESGCM || WOLFSSL_AES_DIRECT || WOLFSSL_AES_COUNTER */
@ -1169,12 +1175,19 @@ void AES_CBC_encrypt(const unsigned char* in, unsigned char* out, unsigned long
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr), [iv] "+r" (iv),
[L_AES_Thumb2_te_ecb] "+r" (L_AES_Thumb2_te_ecb_c)
:
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr), [iv] "+r" (iv)
: [L_AES_Thumb2_te_ecb] "r" (L_AES_Thumb2_te_ecb)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r12", "lr", "r7", "r8", "r9", "r10", "r11", "cc"
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks)
: [L_AES_Thumb2_te_ecb] "r" (L_AES_Thumb2_te_ecb)
: "memory", "r12", "lr", "r4", "r5", "r7", "r8", "r9", "r10", "r11", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
#ifdef WOLFSSL_NO_VAR_ASSIGN_REG
(void)nr;
#endif /* !WOLFSSL_NO_VAR_ASSIGN_REG */
#ifdef WOLFSSL_NO_VAR_ASSIGN_REG
(void)iv;
#endif /* !WOLFSSL_NO_VAR_ASSIGN_REG */
}
#endif /* HAVE_AES_CBC */
@ -1390,12 +1403,19 @@ void AES_CTR_encrypt(const unsigned char* in, unsigned char* out, unsigned long
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr), [ctr] "+r" (ctr),
[L_AES_Thumb2_te_ecb] "+r" (L_AES_Thumb2_te_ecb_c)
:
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr), [ctr] "+r" (ctr)
: [L_AES_Thumb2_te_ecb] "r" (L_AES_Thumb2_te_ecb)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r12", "lr", "r7", "r8", "r9", "r10", "r11", "cc"
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks)
: [L_AES_Thumb2_te_ecb] "r" (L_AES_Thumb2_te_ecb)
: "memory", "r12", "lr", "r4", "r5", "r7", "r8", "r9", "r10", "r11", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
#ifdef WOLFSSL_NO_VAR_ASSIGN_REG
(void)nr;
#endif /* !WOLFSSL_NO_VAR_ASSIGN_REG */
#ifdef WOLFSSL_NO_VAR_ASSIGN_REG
(void)ctr;
#endif /* !WOLFSSL_NO_VAR_ASSIGN_REG */
}
#endif /* WOLFSSL_AES_COUNTER */
@ -1834,12 +1854,16 @@ void AES_ECB_decrypt(const unsigned char* in, unsigned char* out, unsigned long
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr),
[L_AES_Thumb2_td_ecb] "+r" (L_AES_Thumb2_td_ecb_c), [L_AES_Thumb2_td4] "+r" (L_AES_Thumb2_td4_c)
:
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr)
: [L_AES_Thumb2_td_ecb] "r" (L_AES_Thumb2_td_ecb), [L_AES_Thumb2_td4] "r" (L_AES_Thumb2_td4)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r12", "lr", "r7", "r8", "r9", "r10", "r11", "cc"
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks)
: [L_AES_Thumb2_td_ecb] "r" (L_AES_Thumb2_td_ecb), [L_AES_Thumb2_td4] "r" (L_AES_Thumb2_td4)
: "memory", "r12", "lr", "r4", "r7", "r8", "r9", "r10", "r11", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
#ifdef WOLFSSL_NO_VAR_ASSIGN_REG
(void)nr;
#endif /* !WOLFSSL_NO_VAR_ASSIGN_REG */
}
#endif /* WOLFSSL_AES_DIRECT || WOLFSSL_AES_COUNTER */
@ -2193,12 +2217,19 @@ void AES_CBC_decrypt(const unsigned char* in, unsigned char* out, unsigned long
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr), [iv] "+r" (iv),
[L_AES_Thumb2_td_ecb] "+r" (L_AES_Thumb2_td_ecb_c), [L_AES_Thumb2_td4] "+r" (L_AES_Thumb2_td4_c)
:
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr), [iv] "+r" (iv)
: [L_AES_Thumb2_td_ecb] "r" (L_AES_Thumb2_td_ecb), [L_AES_Thumb2_td4] "r" (L_AES_Thumb2_td4)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r12", "lr", "r8", "r9", "r10", "r11", "cc"
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks)
: [L_AES_Thumb2_td_ecb] "r" (L_AES_Thumb2_td_ecb), [L_AES_Thumb2_td4] "r" (L_AES_Thumb2_td4)
: "memory", "r12", "lr", "r4", "r5", "r8", "r9", "r10", "r11", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
#ifdef WOLFSSL_NO_VAR_ASSIGN_REG
(void)nr;
#endif /* !WOLFSSL_NO_VAR_ASSIGN_REG */
#ifdef WOLFSSL_NO_VAR_ASSIGN_REG
(void)iv;
#endif /* !WOLFSSL_NO_VAR_ASSIGN_REG */
}
#endif /* HAVE_AES_CBC */
@ -2785,11 +2816,12 @@ void GCM_gmult_len(unsigned char* x, const unsigned char** m, const unsigned cha
: [x] "+r" (x), [m] "+r" (m), [data] "+r" (data), [len] "+r" (len),
[L_GCM_gmult_len_r] "+r" (L_GCM_gmult_len_r_c)
:
: "memory", "r12", "lr", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "cc"
#else
: [x] "+r" (x), [m] "+r" (m), [data] "+r" (data), [len] "+r" (len)
: [L_GCM_gmult_len_r] "r" (L_GCM_gmult_len_r)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r12", "lr", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
}
@ -2996,12 +3028,19 @@ void AES_GCM_encrypt(const unsigned char* in, unsigned char* out, unsigned long
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr), [ctr] "+r" (ctr),
[L_AES_Thumb2_te_gcm] "+r" (L_AES_Thumb2_te_gcm_c)
:
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks), [nr] "+r" (nr), [ctr] "+r" (ctr)
: [L_AES_Thumb2_te_gcm] "r" (L_AES_Thumb2_te_gcm)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r12", "lr", "r7", "r8", "r9", "r10", "r11", "cc"
#else
: [in] "+r" (in), [out] "+r" (out), [len] "+r" (len), [ks] "+r" (ks)
: [L_AES_Thumb2_te_gcm] "r" (L_AES_Thumb2_te_gcm)
: "memory", "r12", "lr", "r4", "r5", "r7", "r8", "r9", "r10", "r11", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
#ifdef WOLFSSL_NO_VAR_ASSIGN_REG
(void)nr;
#endif /* !WOLFSSL_NO_VAR_ASSIGN_REG */
#ifdef WOLFSSL_NO_VAR_ASSIGN_REG
(void)ctr;
#endif /* !WOLFSSL_NO_VAR_ASSIGN_REG */
}
#endif /* HAVE_AESGCM */

3
wolfcrypt/src/port/arm/thumb2-sha256-asm_c.c
View File

@ -1459,11 +1459,12 @@ void Transform_Sha256_Len(wc_Sha256* sha256, const byte* data, word32 len)
: [sha256] "+r" (sha256), [data] "+r" (data), [len] "+r" (len),
[L_SHA256_transform_len_k] "+r" (L_SHA256_transform_len_k_c)
:
: "memory", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "cc"
#else
: [sha256] "+r" (sha256), [data] "+r" (data), [len] "+r" (len)
: [L_SHA256_transform_len_k] "r" (L_SHA256_transform_len_k)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
}

3
wolfcrypt/src/port/arm/thumb2-sha512-asm_c.c
View File

@ -3574,11 +3574,12 @@ void Transform_Sha512_Len(wc_Sha512* sha512, const byte* data, word32 len)
: [sha512] "+r" (sha512), [data] "+r" (data), [len] "+r" (len),
[L_SHA512_transform_len_k] "+r" (L_SHA512_transform_len_k_c)
:
: "memory", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "cc"
#else
: [sha512] "+r" (sha512), [data] "+r" (data), [len] "+r" (len)
: [L_SHA512_transform_len_k] "r" (L_SHA512_transform_len_k)
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
: "memory", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "cc"
#endif /* WOLFSSL_NO_VAR_ASSIGN_REG */
);
}