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Special yield() variant for thunk'ed functions #19

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merged 2 commits into from
Aug 8, 2024
Merged

Special yield() variant for thunk'ed functions #19

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634592a
Special yield() variant for thunked functions
mcspr Aug 1, 2024
6cd56b5
no args
mcspr Aug 1, 2024
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2 changes: 1 addition & 1 deletion src/ec/ec_prime_i15.c
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Expand Up @@ -465,7 +465,7 @@ run_code(jacobian *P1, const jacobian *P2,
memcpy(t[P1x], P1->c, 3 * I15_LEN * sizeof(uint16_t));
memcpy(t[P2x], P2->c, 3 * I15_LEN * sizeof(uint16_t));

optimistic_yield(10000);
stack_thunk_yield();

/*
* Run formulas.
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2 changes: 1 addition & 1 deletion src/ec/ec_prime_i31.c
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Expand Up @@ -464,7 +464,7 @@ run_code(jacobian *P1, const jacobian *P2,
memcpy(t[P1x], P1->c, 3 * I31_LEN * sizeof(uint32_t));
memcpy(t[P2x], P2->c, 3 * I31_LEN * sizeof(uint32_t));

optimistic_yield(10000);
stack_thunk_yield();

/*
* Run formulas.
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4 changes: 2 additions & 2 deletions src/inner.h
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Expand Up @@ -2595,13 +2595,13 @@ br_cpuid(uint32_t mask_eax, uint32_t mask_ebx,
#endif

#define _debugBearSSL (0)
extern void optimistic_yield(uint32_t);
extern void stack_thunk_yield(void);
#ifdef __cplusplus
}
#endif

#else
#define optimistic_yield(ignored)
#define stack_thunk_yield()
#endif


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6 changes: 3 additions & 3 deletions src/rsa/rsa_i15_priv.c
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Expand Up @@ -141,7 +141,7 @@ br_rsa_i15_private(unsigned char *x, const br_rsa_private_key *sk)
mp = mq + 2 * fwlen;
memmove(mp, t1, fwlen * sizeof *t1);

optimistic_yield(10000);
stack_thunk_yield();

/*
* Compute s2 = x^dq mod q.
Expand All @@ -152,7 +152,7 @@ br_rsa_i15_private(unsigned char *x, const br_rsa_private_key *sk)
r &= br_i15_modpow_opt(s2, sk->dq, sk->dqlen, mq, q0i,
mq + 3 * fwlen, TLEN - 3 * fwlen);

optimistic_yield(10000);
stack_thunk_yield();

/*
* Compute s1 = x^dq mod q.
Expand Down Expand Up @@ -184,7 +184,7 @@ br_rsa_i15_private(unsigned char *x, const br_rsa_private_key *sk)
br_i15_decode_reduce(t1, sk->iq, sk->iqlen, mp);
br_i15_montymul(t2, s1, t1, mp, p0i);

optimistic_yield(10000);
stack_thunk_yield();

/*
* h is now in t2. We compute the final result:
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6 changes: 3 additions & 3 deletions src/rsa/rsa_i31_priv.c
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Expand Up @@ -135,7 +135,7 @@ br_rsa_i31_private(unsigned char *x, const br_rsa_private_key *sk)
mp = mq + 2 * fwlen;
memmove(mp, t1, fwlen * sizeof *t1);

optimistic_yield(10000);
stack_thunk_yield();

/*
* Compute s2 = x^dq mod q.
Expand All @@ -146,7 +146,7 @@ br_rsa_i31_private(unsigned char *x, const br_rsa_private_key *sk)
r &= br_i31_modpow_opt(s2, sk->dq, sk->dqlen, mq, q0i,
mq + 3 * fwlen, TLEN - 3 * fwlen);

optimistic_yield(10000);
stack_thunk_yield();

/*
* Compute s1 = x^dp mod p.
Expand Down Expand Up @@ -178,7 +178,7 @@ br_rsa_i31_private(unsigned char *x, const br_rsa_private_key *sk)
br_i31_decode_reduce(t1, sk->iq, sk->iqlen, mp);
br_i31_montymul(t2, s1, t1, mp, p0i);

optimistic_yield(10000);
stack_thunk_yield();

/*
* h is now in t2. We compute the final result:
Expand Down