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cryptolib: put constant arrays in rodata segment

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The SHA256 constants and some algo definitions are currently in the
.data segment, this wastes precious RAM on the EC where read-only data
are stored in flash only.

BUG=chrome-os-partner:12271
TEST=sudo emerge vboot_reference &&
emerge-daisy vboot_reference vboot_reference-firmware chromeos-ec
and manually check the content of the .data segment in the EC binary.

Change-Id: I67b8c0f2843312651e8ac287cea2f8cb5f075453
Reviewed-on: https://gerrit.chromium.org/gerrit/29273
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Vincent Palatin
2012-08-06 15:38:49 +00:00
committed by Gerrit
parent b48cd672a7
commit 63a0c47f50
4 changed files with 10 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
firmware/lib/cryptolib/include/padding.h
View File

@@ -29,12 +29,12 @@ extern const int kNumAlgorithms;
extern const int digestinfo_size_map[]; extern const int digestinfo_size_map[];
extern const int siglen_map[]; extern const int siglen_map[];
extern const uint8_t* padding_map[]; extern const uint8_t* const padding_map[];
extern const int padding_size_map[]; extern const int padding_size_map[];
extern const int hash_type_map[]; extern const int hash_type_map[];
extern const int hash_size_map[]; extern const int hash_size_map[];
extern const int hash_blocksize_map[]; extern const int hash_blocksize_map[];
extern const uint8_t* hash_digestinfo_map[]; extern const uint8_t* const hash_digestinfo_map[];
extern const char* algo_strings[]; extern const char* const algo_strings[];
#endif /* VBOOT_REFERENCE_PADDING_H_ */ #endif /* VBOOT_REFERENCE_PADDING_H_ */

6
firmware/lib/cryptolib/padding.c
View File

@@ -143,7 +143,7 @@ RSA8192NUMBYTES,
RSA8192NUMBYTES, RSA8192NUMBYTES,
}; };
const uint8_t* padding_map[NUMALGORITHMS] = { const uint8_t* const padding_map[NUMALGORITHMS] = {
#ifdef CHROMEOS_EC #ifdef CHROMEOS_EC
0, 0,
0, 0,
@@ -233,7 +233,7 @@ SHA256_BLOCK_SIZE,
SHA512_BLOCK_SIZE, SHA512_BLOCK_SIZE,
}; };
const uint8_t* hash_digestinfo_map[NUMALGORITHMS] = { const uint8_t* const hash_digestinfo_map[NUMALGORITHMS] = {
SHA1_digestinfo, SHA1_digestinfo,
SHA256_digestinfo, SHA256_digestinfo,
SHA512_digestinfo, SHA512_digestinfo,
@@ -248,7 +248,7 @@ SHA256_digestinfo,
SHA512_digestinfo, SHA512_digestinfo,
}; };
const char* algo_strings[NUMALGORITHMS] = { const char* const algo_strings[NUMALGORITHMS] = {
"RSA1024 SHA1", "RSA1024 SHA1",
"RSA1024 SHA256", "RSA1024 SHA256",
"RSA1024 SHA512", "RSA1024 SHA512",

4
firmware/lib/cryptolib/sha256.c
View File

@@ -82,11 +82,11 @@
wv[h] = t1 + t2; \ wv[h] = t1 + t2; \
} }
uint32_t sha256_h0[8] = { static const uint32_t sha256_h0[8] = {
0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19}; 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19};
uint32_t sha256_k[64] = { static const uint32_t sha256_k[64] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,

4
firmware/lib/cryptolib/sha512.c
View File

@@ -98,13 +98,13 @@
wv[h] = t1 + t2; \ wv[h] = t1 + t2; \
} }
uint64_t sha512_h0[8] = { static const uint64_t sha512_h0[8] = {
0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL, 0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL,
0x3c6ef372fe94f82bULL, 0xa54ff53a5f1d36f1ULL, 0x3c6ef372fe94f82bULL, 0xa54ff53a5f1d36f1ULL,
0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL, 0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL}; 0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL};
uint64_t sha512_k[80] = { static const uint64_t sha512_k[80] = {
0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL,
0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL, 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,