From: Nick Clifton Date: Wed, 8 Mar 2023 13:11:37 +0000 (+0000) Subject: ld: Use correct types for crc64 calculations X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9a534b9f8e3d;p=binutils-gdb.git ld: Use correct types for crc64 calculations --- diff --git a/ld/ld.texi b/ld/ld.texi index c21d849fe24..207ac98126b 100644 --- a/ld/ld.texi +++ b/ld/ld.texi @@ -5581,6 +5581,10 @@ The parameters are explained in detail in Some of the predefined polynomes are the same, but differs in the other parameters. + +Note - the generation of 64-bit polynomes on 32-bit hosts for 32-bit +targets is not supported. + @page The 32-bit command defines the following global symbols. diff --git a/ld/lddigest.c b/ld/lddigest.c index d0bb4db73ab..a2d7460e56a 100644 --- a/ld/lddigest.c +++ b/ld/lddigest.c @@ -115,7 +115,7 @@ lang_add_crc32_table (bool big_endian) } local_table = true; } - for (bfd_vma i = 0; i < 256; i++) + for (int i = 0; i < 256; i++) { uint32_t elem = crc32_table[i]; if (big_endian) @@ -137,7 +137,10 @@ lang_add_crc64_syndrome (algorithm_desc_t * a) CRC_START = CRC64_START; CRC_END = CRC64_END; CRC_TABLE = CRC64_TABLE; - lang_add_data (QUAD, exp_intop (0)); /* Reserve room for the ECC value */ + + /* Reserve room for the ECC value. */ + lang_add_data (QUAD, exp_intop (0)); + a->crc_tab = init_crc64_tab (a); if (a->crc_tab == NULL) { @@ -181,10 +184,13 @@ print_hash64_table (algorithm_desc_t * a) static void lang_add_crc64_table (bool big_endian) { - bfd_vma *crc64_table = algorithm.crc_tab; /* Use a precomputed, if it exists */ + /* Use a precomputed table, if one exists. */ + uint64_t *crc64_table = algorithm.crc_tab; bool local_table = false; + if (crc64_table == NULL) - { /* No luck, create a table */ + { + /* No luck, create a table. */ crc64_table = init_crc64_tab (&algorithm); if (crc64_table == NULL) { @@ -193,21 +199,28 @@ lang_add_crc64_table (bool big_endian) } local_table = true; } + print_hash64_table (&algorithm); - for (bfd_vma i = 0; i < 256; i++) + + for (int i = 0; i < 256; i++) { - bfd_vma elem = crc64_table[i]; + uint64_t elem = crc64_table[i]; + if (big_endian) - { - elem = __builtin_bswap64 (elem); - } + elem = __builtin_bswap64 (elem); + if (link_info.big_endian) + elem = __builtin_bswap64 (elem); + + if (sizeof (bfd_vma) >= QUAD_SIZE) + lang_add_data (QUAD, exp_intop (elem)); + else { - elem = __builtin_bswap64 (elem); + lang_add_data (LONG, exp_intop (elem >> 32)); + lang_add_data (LONG, exp_intop (elem)); } - - lang_add_data (QUAD, exp_intop (elem)); } + if (local_table) free (crc64_table); } @@ -219,7 +232,9 @@ lang_add_digest (bfd_vma size, bfd_vma poly, bfd_vma initial, bfd_vma xor_val, - bfd_vma ireflect, bfd_vma oreflect, bfd_vma reciprocal) + bfd_vma ireflect, + bfd_vma oreflect, + bfd_vma reciprocal) { if (algorithm.crc_algo != no_algo) /* We only allow one CRC */ { @@ -578,7 +593,7 @@ get_text_section_contents (void) text_section->output_section, (bfd_byte **) & text_contents)) { - einfo (_("%X%P: '&s' section contents unavailable\n" + einfo (_("%X%P: '%s' section contents unavailable\n" "CRC generation aborted\n"), digest_section); return false; } @@ -660,7 +675,7 @@ set_crc64_checksum (uint64_t crc, bfd_vma addr) } static bool -set_crc_checksum (bfd_vma crc, bfd_vma addr, bfd_vma size) +set_crc_checksum (uint64_t crc, bfd_vma addr, bfd_vma size) { bool status; if (size == 64) @@ -700,7 +715,7 @@ symbol_lookup (char *name, bfd_vma * val) * Multiplexing function for calculating CRC with different algorithms * 'algorithm.crc_algo' */ -static bfd_vma +static uint64_t calculate_crc (const unsigned char *input_str, size_t num_bytes) { if (algorithm.crc_algo == crc_algo_64) @@ -723,7 +738,8 @@ calculate_crc (const unsigned char *input_str, size_t num_bytes) static bool invalid_crc_parameters (bfd_vma crc_addr, - bfd_vma crc_area_start, bfd_vma crc_area_end) + bfd_vma crc_area_start, + bfd_vma crc_area_end) { bool crc_in_section; bfd_vma crc_size = algorithm.crc_size / 8; @@ -782,7 +798,7 @@ void lang_generate_crc (void) { bfd_vma crc_addr, crc_area_start, crc_area_end; - bfd_vma crc; + uint64_t crc; bool can_do_crc; /* Return immediately, if CRC is not requested */ diff --git a/ld/lddigest.h b/ld/lddigest.h index 9f5e5f3fbda..a1eeb022d00 100755 --- a/ld/lddigest.h +++ b/ld/lddigest.h @@ -156,28 +156,34 @@ extern const char *digest_label; extern bool digest_big_endian; extern bool polynome_valid; -/* CRC-32 */ -extern uint32_t *init_crc32_tab (algorithm_desc_t * dsc); +/* In ldcrc32.c. */ +extern uint32_t * init_crc32_tab + (algorithm_desc_t *); extern uint32_t calc_crc32 - (algorithm_desc_t * dsc, const unsigned char *input_str, size_t num_bytes); -extern void lang_add_crc32_syndrome (algorithm_desc_t * a); - -/* CR-64 */ -extern bfd_vma *init_crc64_tab (algorithm_desc_t * dsc); -extern bfd_vma calc_crc64 - (algorithm_desc_t * dsc, const unsigned char *input_str, size_t num_bytes); -extern void lang_add_crc64_syndrome (algorithm_desc_t * a); - -extern void lang_add_digest (bfd_vma size, - bfd_vma poly, - bfd_vma initial, - bfd_vma xor_val, - bfd_vma ireflect, - bfd_vma oreflect, bfd_vma reciprocal); -extern bool lang_set_digest (char *digest); -extern void lang_add_digest_table (bool big_endian); -extern const char *lang_get_label (const char *label, bool *big_endian); -extern void lang_generate_crc (void); -extern void lang_generate_digest (void); + (algorithm_desc_t *, const unsigned char *, size_t); +extern void lang_add_crc32_syndrome + (algorithm_desc_t *); + +/* In ldcrc64.c. */ +extern uint64_t * init_crc64_tab + (algorithm_desc_t *); +extern uint64_t calc_crc64 + (algorithm_desc_t *, const unsigned char *, size_t); +extern void lang_add_crc64_syndrome + (algorithm_desc_t * ); + +/* In lddigest.c */ +extern void lang_add_digest + (bfd_vma, bfd_vma, bfd_vma, bfd_vma, bfd_vma, bfd_vma, bfd_vma); +extern bool lang_set_digest + (char *); +extern void lang_add_digest_table + (bool); +extern const char * lang_get_label + (const char *, bool *); +extern void lang_generate_crc + (void); +extern void lang_generate_digest + (void); #endif /* LDDIGEST_H */ diff --git a/ld/ldgram.y b/ld/ldgram.y index ea0c569279a..54bf8e0f908 100644 --- a/ld/ldgram.y +++ b/ld/ldgram.y @@ -691,7 +691,7 @@ statement: } | DIGEST NAME { /* CRC_ADDRESS is set in , but polynome reserves space, so we use a temporary */ - digest_label = lang_get_label($2, &digest_big_endian); + digest_label = lang_get_label ($2, &digest_big_endian); lang_add_assignment (exp_assign (digest_label, exp_nameop (NAME, "."), false)); } polynome '(' mustbe_exp ',' mustbe_exp ')' @@ -740,7 +740,7 @@ statement: polynome: NAME { - polynome_valid = lang_set_digest($1); + polynome_valid = lang_set_digest ($1); } | POLY '(' mustbe_exp ',' mustbe_exp ',' mustbe_exp ',' mustbe_exp ',' diff --git a/ld/testsuite/ld-scripts/crc64-poly.d b/ld/testsuite/ld-scripts/crc64-poly.d index b54ac47e448..a1e6eb8f150 100644 --- a/ld/testsuite/ld-scripts/crc64-poly.d +++ b/ld/testsuite/ld-scripts/crc64-poly.d @@ -9,7 +9,7 @@ Contents of section .text: 1200 434f4445 deadbeef 00000000 00000000 CODE............ 1210 6c40df5f 0b497347 00000000 00000000 l@._.IsG........ - 1220 6c40df5f 0b497347 00000000 00000000 l@._.IsG........ + 1220 ee5e1ecd 02f31206 00000000 00000000 ................ 1230 00000000 00000000 deadbeef 434f4445 ............CODE 1240 31323334 35363738 3900ffff ffffffff 123456789....... 1250 434f4445 00000000 00000000 00000000 CODE............ diff --git a/ld/testsuite/ld-scripts/crc64-poly.t b/ld/testsuite/ld-scripts/crc64-poly.t index fb357caedf9..00a21557827 100644 --- a/ld/testsuite/ld-scripts/crc64-poly.t +++ b/ld/testsuite/ld-scripts/crc64-poly.t @@ -26,7 +26,7 @@ SECTIONS QUAD(0x0); crc64 = .; - DIGEST "_CRC64#BE" POLY(64,0x42F0E1EBA9EA3693,0,0,0,0,0)(ecc_start , ecc_end) + DIGEST "_CRC64#BE" POLY(64,0xA9EA3693,0,0,0,0,0)(ecc_start , ecc_end) QUAD(0x0); INCLUDE "end_tag.inc"