diff options
Diffstat (limited to 'security/nss/lib/freebl/verified/karamel/include/krml/internal/target.h')
| -rw-r--r-- | security/nss/lib/freebl/verified/karamel/include/krml/internal/target.h | 375 |
1 files changed, 375 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/verified/karamel/include/krml/internal/target.h b/security/nss/lib/freebl/verified/karamel/include/krml/internal/target.h new file mode 100644 index 0000000000..b63967f480 --- /dev/null +++ b/security/nss/lib/freebl/verified/karamel/include/krml/internal/target.h @@ -0,0 +1,375 @@ +/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved. + Licensed under the Apache 2.0 License. */ + +#ifndef __KRML_TARGET_H +#define __KRML_TARGET_H + +#include <assert.h> +#include <inttypes.h> +#include <limits.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> + +/* Since KaRaMeL emits the inline keyword unconditionally, we follow the + * guidelines at https://gcc.gnu.org/onlinedocs/gcc/Inline.html and make this + * __inline__ to ensure the code compiles with -std=c90 and earlier. */ +#ifdef __GNUC__ +#define inline __inline__ +#endif + +/******************************************************************************/ +/* Macros that KaRaMeL will generate. */ +/******************************************************************************/ + +/* For "bare" targets that do not have a C stdlib, the user might want to use + * [-add-early-include '"mydefinitions.h"'] and override these. */ +#ifndef KRML_HOST_PRINTF +#define KRML_HOST_PRINTF printf +#endif + +#if ( \ + (defined __STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \ + (!(defined KRML_HOST_EPRINTF))) +#define KRML_HOST_EPRINTF(...) fprintf(stderr, __VA_ARGS__) +#elif !(defined KRML_HOST_EPRINTF) && defined(_MSC_VER) +#define KRML_HOST_EPRINTF(...) fprintf(stderr, __VA_ARGS__) +#endif + +#ifndef KRML_HOST_EXIT +#define KRML_HOST_EXIT exit +#endif + +#ifndef KRML_HOST_MALLOC +#define KRML_HOST_MALLOC malloc +#endif + +#ifndef KRML_HOST_CALLOC +#define KRML_HOST_CALLOC calloc +#endif + +#ifndef KRML_HOST_FREE +#define KRML_HOST_FREE free +#endif + +#ifndef KRML_HOST_IGNORE +#define KRML_HOST_IGNORE(x) (void)(x) +#endif + +#ifndef KRML_NOINLINE +#if defined(_MSC_VER) +#define KRML_NOINLINE __declspec(noinline) +#elif defined(__GNUC__) +#define KRML_NOINLINE __attribute__((noinline, unused)) +#else +#define KRML_NOINLINE +#warning "The KRML_NOINLINE macro is not defined for this toolchain!" +#warning "The compiler may defeat side-channel resistance with optimizations." +#warning "Please locate target.h and try to fill it out with a suitable definition for this compiler." +#endif +#endif + +#ifndef KRML_PRE_ALIGN +#ifdef _MSC_VER +#define KRML_PRE_ALIGN(X) __declspec(align(X)) +#else +#define KRML_PRE_ALIGN(X) +#endif +#endif + +#ifndef KRML_POST_ALIGN +#ifdef _MSC_VER +#define KRML_POST_ALIGN(X) +#else +#define KRML_POST_ALIGN(X) __attribute__((aligned(X))) +#endif +#endif + +/* MinGW-W64 does not support C11 aligned_alloc, but it supports + * MSVC's _aligned_malloc. + */ +#ifndef KRML_ALIGNED_MALLOC +#ifdef __MINGW32__ +#include <_mingw.h> +#endif +#if ( \ + defined(_MSC_VER) || \ + (defined(__MINGW32__) && defined(__MINGW64_VERSION_MAJOR))) +#define KRML_ALIGNED_MALLOC(X, Y) _aligned_malloc(Y, X) +#else +#define KRML_ALIGNED_MALLOC(X, Y) aligned_alloc(X, Y) +#endif +#endif + +/* Since aligned allocations with MinGW-W64 are done with + * _aligned_malloc (see above), such pointers must be freed with + * _aligned_free. + */ +#ifndef KRML_ALIGNED_FREE +#ifdef __MINGW32__ +#include <_mingw.h> +#endif +#if ( \ + defined(_MSC_VER) || \ + (defined(__MINGW32__) && defined(__MINGW64_VERSION_MAJOR))) +#define KRML_ALIGNED_FREE(X) _aligned_free(X) +#else +#define KRML_ALIGNED_FREE(X) free(X) +#endif +#endif + +#ifndef KRML_HOST_TIME + +#include <time.h> + +/* Prims_nat not yet in scope */ +inline static int32_t +krml_time(void) +{ + return (int32_t)time(NULL); +} + +#define KRML_HOST_TIME krml_time +#endif + +/* In statement position, exiting is easy. */ +#define KRML_EXIT \ + do { \ + KRML_HOST_PRINTF("Unimplemented function at %s:%d\n", __FILE__, __LINE__); \ + KRML_HOST_EXIT(254); \ + } while (0) + +/* In expression position, use the comma-operator and a malloc to return an + * expression of the right size. KaRaMeL passes t as the parameter to the macro. + */ +#define KRML_EABORT(t, msg) \ + (KRML_HOST_PRINTF("KaRaMeL abort at %s:%d\n%s\n", __FILE__, __LINE__, msg), \ + KRML_HOST_EXIT(255), *((t *)KRML_HOST_MALLOC(sizeof(t)))) + +/* In FStar.Buffer.fst, the size of arrays is uint32_t, but it's a number of + * *elements*. Do an ugly, run-time check (some of which KaRaMeL can eliminate). + */ +#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)) +#define _KRML_CHECK_SIZE_PRAGMA \ + _Pragma("GCC diagnostic ignored \"-Wtype-limits\"") +#else +#define _KRML_CHECK_SIZE_PRAGMA +#endif + +#define KRML_CHECK_SIZE(size_elt, sz) \ + do { \ + _KRML_CHECK_SIZE_PRAGMA \ + if (((size_t)(sz)) > ((size_t)(SIZE_MAX / (size_elt)))) { \ + KRML_HOST_PRINTF( \ + "Maximum allocatable size exceeded, aborting before overflow at " \ + "%s:%d\n", \ + __FILE__, __LINE__); \ + KRML_HOST_EXIT(253); \ + } \ + } while (0) + +#if defined(_MSC_VER) && _MSC_VER < 1900 +#define KRML_HOST_SNPRINTF(buf, sz, fmt, arg) \ + _snprintf_s(buf, sz, _TRUNCATE, fmt, arg) +#else +#define KRML_HOST_SNPRINTF(buf, sz, fmt, arg) snprintf(buf, sz, fmt, arg) +#endif + +#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)) +#define KRML_DEPRECATED(x) __attribute__((deprecated(x))) +#elif defined(__GNUC__) +/* deprecated attribute is not defined in GCC < 4.5. */ +#define KRML_DEPRECATED(x) +#elif defined(_MSC_VER) +#define KRML_DEPRECATED(x) __declspec(deprecated(x)) +#endif + +/* Macros for prettier unrolling of loops */ +#define KRML_LOOP1(i, n, x) \ + { \ + x \ + i += n; \ + (void)i; \ + } + +#define KRML_LOOP2(i, n, x) \ + KRML_LOOP1(i, n, x) \ + KRML_LOOP1(i, n, x) + +#define KRML_LOOP3(i, n, x) \ + KRML_LOOP2(i, n, x) \ + KRML_LOOP1(i, n, x) + +#define KRML_LOOP4(i, n, x) \ + KRML_LOOP2(i, n, x) \ + KRML_LOOP2(i, n, x) + +#define KRML_LOOP5(i, n, x) \ + KRML_LOOP4(i, n, x) \ + KRML_LOOP1(i, n, x) + +#define KRML_LOOP6(i, n, x) \ + KRML_LOOP4(i, n, x) \ + KRML_LOOP2(i, n, x) + +#define KRML_LOOP7(i, n, x) \ + KRML_LOOP4(i, n, x) \ + KRML_LOOP3(i, n, x) + +#define KRML_LOOP8(i, n, x) \ + KRML_LOOP4(i, n, x) \ + KRML_LOOP4(i, n, x) + +#define KRML_LOOP9(i, n, x) \ + KRML_LOOP8(i, n, x) \ + KRML_LOOP1(i, n, x) + +#define KRML_LOOP10(i, n, x) \ + KRML_LOOP8(i, n, x) \ + KRML_LOOP2(i, n, x) + +#define KRML_LOOP11(i, n, x) \ + KRML_LOOP8(i, n, x) \ + KRML_LOOP3(i, n, x) + +#define KRML_LOOP12(i, n, x) \ + KRML_LOOP8(i, n, x) \ + KRML_LOOP4(i, n, x) + +#define KRML_LOOP13(i, n, x) \ + KRML_LOOP8(i, n, x) \ + KRML_LOOP5(i, n, x) + +#define KRML_LOOP14(i, n, x) \ + KRML_LOOP8(i, n, x) \ + KRML_LOOP6(i, n, x) + +#define KRML_LOOP15(i, n, x) \ + KRML_LOOP8(i, n, x) \ + KRML_LOOP7(i, n, x) + +#define KRML_LOOP16(i, n, x) \ + KRML_LOOP8(i, n, x) \ + KRML_LOOP8(i, n, x) + +#define KRML_UNROLL_FOR(i, z, n, k, x) \ + do { \ + uint32_t i = z; \ + KRML_LOOP##n(i, k, x) \ + } while (0) + +#define KRML_ACTUAL_FOR(i, z, n, k, x) \ + do { \ + for (uint32_t i = z; i < n; i += k) { \ + x \ + } \ + } while (0) + +#ifndef KRML_UNROLL_MAX +#define KRML_UNROLL_MAX 16 +#endif + +/* 1 is the number of loop iterations, i.e. (n - z)/k as evaluated by krml */ +#if 0 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR0(i, z, n, k, x) +#else +#define KRML_MAYBE_FOR0(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 1 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR1(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 1, k, x) +#else +#define KRML_MAYBE_FOR1(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 2 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR2(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 2, k, x) +#else +#define KRML_MAYBE_FOR2(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 3 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR3(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 3, k, x) +#else +#define KRML_MAYBE_FOR3(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 4 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR4(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 4, k, x) +#else +#define KRML_MAYBE_FOR4(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 5 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR5(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 5, k, x) +#else +#define KRML_MAYBE_FOR5(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 6 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR6(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 6, k, x) +#else +#define KRML_MAYBE_FOR6(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 7 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR7(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 7, k, x) +#else +#define KRML_MAYBE_FOR7(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 8 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR8(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 8, k, x) +#else +#define KRML_MAYBE_FOR8(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 9 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR9(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 9, k, x) +#else +#define KRML_MAYBE_FOR9(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 10 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR10(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 10, k, x) +#else +#define KRML_MAYBE_FOR10(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 11 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR11(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 11, k, x) +#else +#define KRML_MAYBE_FOR11(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 12 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR12(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 12, k, x) +#else +#define KRML_MAYBE_FOR12(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 13 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR13(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 13, k, x) +#else +#define KRML_MAYBE_FOR13(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 14 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR14(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 14, k, x) +#else +#define KRML_MAYBE_FOR14(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 15 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR15(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 15, k, x) +#else +#define KRML_MAYBE_FOR15(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif + +#if 16 <= KRML_UNROLL_MAX +#define KRML_MAYBE_FOR16(i, z, n, k, x) KRML_UNROLL_FOR(i, z, 16, k, x) +#else +#define KRML_MAYBE_FOR16(i, z, n, k, x) KRML_ACTUAL_FOR(i, z, n, k, x) +#endif +#endif |