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-rw-r--r--adb.c11962logstatsplain
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generated by cgit v1.2.3 (git 2.25.1) at 2026-01-03 20:00:46 +0000
n class="p">, char *result) { int len, skipped_first = 0; u8 *tptr, *data; /* get the compressed symbol length from the first symbol byte */ data = &symbols_names[off]; len = *data; data++; /* update the offset to return the offset for the next symbol on * the compressed stream */ off += len + 1; /* for every byte on the compressed symbol data, copy the table entry for that byte */ while(len) { tptr = &symbols_token_table[ symbols_token_index[*data] ]; data++; len--; while (*tptr) { if(skipped_first) { *result = *tptr; result++; } else skipped_first = 1; tptr++; } } *result = '\0'; /* return to offset to the next symbol */ return off; } /* find the offset on the compressed stream given and index in the * symbols array */ static unsigned int get_symbol_offset(unsigned long pos) { u8 *name; int i; /* use the closest marker we have. We have markers every 256 positions, * so that should be close enough */ name = &symbols_names[ symbols_markers[pos>>8] ]; /* sequentially scan all the symbols up to the point we're searching for. * Every symbol is stored in a [<len>][<len> bytes of data] format, so we * just need to add the len to the current pointer for every symbol we * wish to skip */ for(i = 0; i < (pos&0xFF); i++) name = name + (*name) + 1; return name - symbols_names; } const char *symbols_lookup(unsigned long addr, unsigned long *symbolsize, unsigned long *offset, char *namebuf) { unsigned long i, low, high, mid; unsigned long symbol_end = 0; /* This kernel should never had been booted. */ BUG_ON(!symbols_addresses); namebuf[KSYM_NAME_LEN] = 0; namebuf[0] = 0; if (!is_kernel_text(addr)) return NULL; /* do a binary search on the sorted symbols_addresses array */ low = 0; high = symbols_num_syms; while (high-low > 1) { mid = (low + high) / 2; if (symbols_addresses[mid] <= addr) low = mid; else high = mid; } /* search for the first aliased symbol. Aliased symbols are symbols with the same address */ while (low && symbols_addresses[low - 1] == symbols_addresses[low]) --low; /* Grab name */ symbols_expand_symbol(get_symbol_offset(low), namebuf); /* Search for next non-aliased symbol */ for (i = low + 1; i < symbols_num_syms; i++) { if (symbols_addresses[i] > symbols_addresses[low]) { symbol_end = symbols_addresses[i]; break; } } /* if we found no next symbol, we use the end of the section */ if (!symbol_end) symbol_end = kernel_text_end(); *symbolsize = symbol_end - symbols_addresses[low]; *offset = addr - symbols_addresses[low]; return namebuf; } /* Replace "%s" in format with address, or returns -errno. */ void __print_symbol(const char *fmt, unsigned long address) { const char *name; unsigned long offset, size; char namebuf[KSYM_NAME_LEN+1]; char buffer[sizeof("%s+%#lx/%#lx [%s]") + KSYM_NAME_LEN + 2*(BITS_PER_LONG*3/10) + 1]; name = symbols_lookup(address, &size, &offset, namebuf); if (!name) sprintf(buffer, "???"); else sprintf(buffer, "%s+%#lx/%#lx", name, offset, size); printk(fmt, buffer); }