1 /** 2 * @file op_abi.c 3 * This file contains a simple C interface to the ABI-describing functionality, 4 * the majority of which is implemented in C++. This is the file which is 5 * intended for use in files outside the /libabi directory. 6 * 7 * @remark Copyright 2002, 2005 OProfile authors 8 * @remark Read the file COPYING 9 * 10 * @author Graydon Hoare 11 * @author Philippe Elie 12 */ 13 14 #include "op_abi.h" 15 #include "odb.h" 16 #include "op_sample_file.h" 17 18 #include <stdio.h> 19 #include <stddef.h> 20 #include <assert.h> 21 22 static struct op_abi_entry const abi_entries[] = { 23 { "sizeof_double", sizeof(double) }, 24 { "sizeof_time_t", sizeof(time_t) }, 25 { "sizeof_u8", sizeof(u8) }, 26 { "sizeof_u32", sizeof(u32) }, 27 { "sizeof_int", sizeof(int) }, 28 { "sizeof_unsigned_int", sizeof(unsigned int) }, 29 { "sizeof_odb_key_t", sizeof(odb_key_t) }, 30 { "sizeof_odb_index_t", sizeof(odb_index_t) }, 31 { "sizeof_odb_value_t", sizeof(odb_value_t) }, 32 { "sizeof_odb_node_nr_t", sizeof(odb_node_nr_t) }, 33 { "sizeof_odb_descr_t", sizeof(odb_descr_t) }, 34 { "sizeof_odb_node_t", sizeof(odb_node_t) }, 35 { "sizeof_struct_opd_header", sizeof(struct opd_header) }, 36 37 { "offsetof_node_key", offsetof(odb_node_t, key) }, 38 { "offsetof_node_value", offsetof(odb_node_t, value) }, 39 { "offsetof_node_next", offsetof(odb_node_t, next) }, 40 41 { "offsetof_descr_size", offsetof(odb_descr_t, size) }, 42 { "offsetof_descr_current_size", offsetof(odb_descr_t, current_size) }, 43 44 { "offsetof_header_magic", offsetof(struct opd_header, magic) }, 45 { "offsetof_header_version", offsetof(struct opd_header, version) }, 46 { "offsetof_header_cpu_type", offsetof(struct opd_header, cpu_type) }, 47 { "offsetof_header_ctr_event", offsetof(struct opd_header, ctr_event) }, 48 { "offsetof_header_ctr_um", offsetof(struct opd_header, ctr_um) }, 49 { "offsetof_header_ctr_count", offsetof(struct opd_header, ctr_count) }, 50 { "offsetof_header_is_kernel", offsetof(struct opd_header, is_kernel) }, 51 { "offsetof_header_cpu_speed", offsetof(struct opd_header, cpu_speed) }, 52 { "offsetof_header_mtime", offsetof(struct opd_header, mtime) }, 53 { "offsetof_header_cg_to_is_kernel", offsetof(struct opd_header, cg_to_is_kernel), }, 54 { "offsetof_header_anon_start", offsetof(struct opd_header, anon_start) }, 55 { "offsetof_header_cg_to_anon_start", offsetof(struct opd_header, cg_to_anon_start) }, 56 57 { NULL, 0 }, 58 }; 59 60 61 struct op_abi_entry const * get_abi(void) 62 { 63 return abi_entries; 64 } 65 66 67 int op_little_endian(void) 68 { 69 unsigned int probe = 0xff; 70 size_t sz = sizeof(unsigned int); 71 unsigned char * probe_byte = (unsigned char *)&probe; 72 73 assert(probe_byte[0] == 0xff || probe_byte[sz - 1] == 0xff); 74 75 return probe_byte[0] == 0xff; 76 } 77 78 79 int op_write_abi_to_file(char const * abi_file) 80 { 81 FILE * fp; 82 struct op_abi_entry const * abi_entry; 83 84 if ((fp = fopen(abi_file, "w")) == NULL) 85 return 0; 86 87 for (abi_entry = get_abi() ; abi_entry->name != NULL; ++abi_entry) 88 fprintf(fp, "%s %u\n", abi_entry->name, abi_entry->offset); 89 fprintf(fp, "little_endian %d\n", op_little_endian()); 90 91 fclose(fp); 92 93 return 1; 94 } 95
