Changeset ae9624e in mainline for tools/genmap.py

Timestamp:

2005-09-04T23:38:03Z (20 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

6153749

Parents:

824553ed

Message:

Symbol table now contains static functions too.
NOTE: gcc heavily inlines, be aware of optimizations.

Removed excesive item from boot page tables.

File:

• tools/genmap.py (modified) (1 diff)

tools/genmap.py

@@ -5 +5 @@
 import re
 
-symline = re.compile(r'(0x[a-f0-9]+)\s+([^\s]+)$')
-fileline = re.compile(r'[^\s]+\s+0x[a-f0-9]+\s+0x[a-f0-9]+\s+([^\s]+\.o)$')
-
 MAXSTRING=63
 symtabfmt = "<Q%ds" % (MAXSTRING+1)
 
-def read_symbols(inp):
-    while 1:
-        line = inp.readline()
-        if not line:
-            return
-        if 'memory map' in line:
-            break        
 
-    symtable = {}
-    filename = ''
-    while 1:
-        line = inp.readline()
-        if not line.strip():
+objline = re.compile(r'([0-9a-f]+)\s+[lg]\s+F\s+\.text\s+[0-9a-f]+\s+(.*)$')
+fileexp = re.compile(r'([^\s]+):\s+file format')
+def read_obdump(inp):
+    result = {}
+    fname = ''
+    for line in inp:
+        line = line.strip()
+        res = objline.match(line)
+        if res:
+            result.setdefault(fname,[]).append((int(res.group(1),16),
+                                                 res.group(2)))
+        res = fileexp.match(line)
+        if res:
+            fname = res.group(1)
             continue
-        if line[0] not in (' ','.'):
-            break
+    
+    return result
+
+startfile = re.compile(r'\.text\s+(0x[0-9a-f]+)\s+0x[0-9a-f]+\s+(.*)$')
+def generate(kmapf, obmapf, out):
+    obdump = read_obdump(obmapf)
+
+    def sorter(x,y):
+        return cmp(x[0],y[0])
+
+    for line in kmapf:
         line = line.strip()
-        # Search for file name
-        res = fileline.match(line)
-        if res:
-            filename = res.group(1)
-        # Search for symbols
-        res = symline.match(line)
-        if res:
-            symtable[int(res.group(1),16)] = filename + ':' + res.group(2)
-    return symtable
-    
-def generate(inp, out):
-    symtab = read_symbols(inp)
-    if not symtab:
-        print "Bad kernel.map format, empty."
-        sys.exit(1)
-    addrs = symtab.keys()
-    addrs.sort()
-    for addr in addrs:
-        # Do not write address 0, it indicates end of data
-        if addr == 0:
-            continue
-        data = struct.pack(symtabfmt,addr,symtab[addr][:MAXSTRING])
-        out.write(data)
+        res = startfile.match(line)
+        if res and obdump.has_key(res.group(2)):
+            offset = int(res.group(1),16)
+            fname = res.group(2)
+            symbols = obdump[fname]
+            symbols.sort(sorter)
+            for addr,symbol in symbols:
+                value = fname + ':' + symbol
+                data = struct.pack(symtabfmt,addr+offset,value[:MAXSTRING])
+                out.write(data)
+                
     out.write(struct.pack(symtabfmt,0,''))
 
 def main():
-    if len(sys.argv) != 3:
-        print "Usage: %s <kernel.map> <output.bin>" % sys.argv[0]
+    if len(sys.argv) != 4:
+        print "Usage: %s <kernel.map> <nm dump> <output.bin>" % sys.argv[0]
         sys.exit(1)
 
-    inp = open(sys.argv[1],'r')
-    out = open(sys.argv[2],'w')
-    generate(inp,out)
-    inp.close()
+    kmapf = open(sys.argv[1],'r')
+    obmapf = open(sys.argv[2],'r')
+    out = open(sys.argv[3],'w')
+    generate(kmapf,obmapf,out)
+    kmapf.close()
+    obmapf.close()
     out.close()