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457 Commits

Author SHA1 Message Date
Chris Lattner
8bd875f0de Do not allow bytecode files with unresolved references to be read. Doing 
so lets wierd ConstantPlaceholder objects sneak into the system which
confuses it greatly.

llvm-svn: 18487
 2004-12-04 05:28:27 +00:00
Chris Lattner
d6020eabef RevisionNum is read by error(), initialize it early. 
llvm-svn: 18386
 2004-11-30 16:58:18 +00:00
Reid Spencer
49f3fe5d81 Compute the firstFileOffset correctly after reading the LLVM symbol table. 
llvm-svn: 18300
 2004-11-28 03:13:02 +00:00
Reid Spencer
d841d33637 Adjust to Compressor interface change 
llvm-svn: 18249
 2004-11-25 19:38:05 +00:00
Reid Spencer
da5beb436a Allow reading of member names that begin with an _ character. 
llvm-svn: 18179
 2004-11-23 22:35:39 +00:00
Reid Spencer
df25e5b3bb Fix a comment to imply the correct semantics. 
llvm-svn: 18097
 2004-11-22 02:58:47 +00:00
Reid Spencer
f381e95cc6 Distinguish between BSD4.4 and SVR4 symbol tables 
llvm-svn: 18044
 2004-11-20 07:29:40 +00:00
Reid Spencer
1c4d0a214a Correct the computation of when to add the padding. It is not based on the 
member's size. It is based on the oddness/evenness of the file pointer.
This fixes a bug with llvm-ar not being able to read archives produced by
llvm-ranlib when there are members with odd long file name lengths.

llvm-svn: 17997
 2004-11-19 17:08:00 +00:00
Chris Lattner
e5662f4700 Add note that this is for old bytecode files. 
llvm-svn: 17991
 2004-11-19 16:24:05 +00:00
Reid Spencer
640ab4f4f6 Don't save an iterator, just use post-increment. 
llvm-svn: 17981
 2004-11-19 03:44:10 +00:00
Reid Spencer
a181a37bb4 Make findModulesDefiningSymbols modify its symbols argument so we can \ 
eliminate symbols defined by the archive efficiently

llvm-svn: 17976
 2004-11-19 03:18:22 +00:00
Reid Spencer
a98ccac6fc Fix some things for Mac OSX archives: 
* ensure trailing spaces are eliminated so they don't factor into the
  length of a member's name.
* make sure all the bytes of a name are written even if the name ends in
  multiple null characters (bug in OSX ar)
* make sure we provide the full member name when searching for symbols so
  the module name is not accidentally duplicated.

llvm-svn: 17918
 2004-11-17 18:28:29 +00:00
Reid Spencer
3e245bd4d5 Make sure we parse bytecode with a module identifier that reflects the full 
name of the module: "Archive.a(object.o)"

llvm-svn: 17917
 2004-11-17 18:25:21 +00:00
Reid Spencer
b9fbea4c79 Adjust long file name writing to match BSD 4.4 and Mac OSX style archives. 
llvm-svn: 17910
 2004-11-17 16:14:21 +00:00
Reid Spencer
f59013e0fa Despite documentation to the contrary, Mac OSX and BSD 4.4 archive formats 
*do* include the length of the long file in the length of the member and
they are *not* null terminated.

llvm-svn: 17909
 2004-11-17 16:13:11 +00:00
Reid Spencer
35a3e7eacc Fix typeo in comment. 
llvm-svn: 17892
 2004-11-16 07:05:16 +00:00
Reid Spencer
2d66bbb7c3 Per code review:\ 
* Make the numVbrBytes function more efficient and better documented \
* Fix a bug in name truncation \
* Add comments before functions \
* Get rid of functions that are now inlined into the header \
* Do not have Archive doing symbol table printing \
* Put assert comments into the assert so they print out \
* Make sure foreign symbol tables are written

llvm-svn: 17884
 2004-11-16 06:47:30 +00:00
Reid Spencer
b6d946d19d Per code review:\ 
* Make sure we write out the foreign symbol table if we read one \
* Make the padding calculation more efficiently and avoid Solaris warnings

llvm-svn: 17883
 2004-11-16 06:47:19 +00:00
Reid Spencer
e39cdbd7f7 Per code review:\ 
* Make sure all members are initialized upon construction

llvm-svn: 17882
 2004-11-16 06:47:07 +00:00
Reid Spencer
2fe884dad8 Per code review:\ 
* Get rid of memory leaks on exception \
* Provide better comments of how the memory handling works

llvm-svn: 17876
 2004-11-16 06:41:05 +00:00
Chris Lattner
10b5a5c0da Do not emit FunctionBlock blocks for external functions. This shrinks 
bytecode files by about 8 bytes per external function

llvm-svn: 17859
 2004-11-15 22:39:49 +00:00
Chris Lattner
558ce75905 Use a per-function flag bit to indicate whether or not there is a function 
body for the function.

llvm-svn: 17858
 2004-11-15 22:38:52 +00:00
Chris Lattner
c199d448e9 Disable this change, it was premature 
llvm-svn: 17857
 2004-11-15 21:56:33 +00:00
Chris Lattner
704cad0375 Make *SURE* to null out the pointer before throwing an exception, otherwise 
the dtor for the BytecodeReader class will try to free it again!

llvm-svn: 17856
 2004-11-15 21:55:33 +00:00
Chris Lattner
4a2ae87435 Cleanups. Null out pointer after freeing it for paranoia 
llvm-svn: 17855
 2004-11-15 21:55:06 +00:00
Chris Lattner
571b490404 If a function is external, do not output a FunctionBlock for the function 
AT ALL.  This saves 11 bytes per external function from the bytecode file,
and is also required to make GhostLinkage work.

llvm-svn: 17854
 2004-11-15 21:46:40 +00:00
Chris Lattner
d1e621acc6 Make functions default to having external linkage if they have no 
FunctionBlock.

llvm-svn: 17853
 2004-11-15 21:43:03 +00:00
Reid Spencer
52da956231 * Make sure the string table gets read even if there isn't a foreign 
symbol table.
* Make sure we update the file pointer for each member when rebuilding the
  symbol table.

llvm-svn: 17812
 2004-11-15 01:40:20 +00:00
Reid Spencer
bfc924424d Changes necessary to enable linking of archives without LLVM symbol tables. 
llvm-svn: 17811
 2004-11-15 01:20:11 +00:00
Reid Spencer
85698d2435 Moved to lib/Bytecode/Archive. 
llvm-svn: 17800
 2004-11-14 22:38:32 +00:00
Reid Spencer
5c112bc910 Simplify compression code by using the high level interface to the Compressor 
llvm-svn: 17771
 2004-11-14 22:01:41 +00:00
Reid Spencer
cc354b445d Add wrappers to get defined symbols from bytecode 
llvm-svn: 17770
 2004-11-14 22:00:48 +00:00
Reid Spencer
b9baef5ca8 Simplify handling of decompression 
llvm-svn: 17769
 2004-11-14 22:00:09 +00:00
Reid Spencer
115f252d2a Simplify decompression code by using the high level interface to the Compressor 
llvm-svn: 17768
 2004-11-14 21:59:21 +00:00
Reid Spencer
2917639a35 Completely rewritten to allow reading of archives and symbol table lookup in a more efficient manner. 
llvm-svn: 17767
 2004-11-14 21:58:33 +00:00
Reid Spencer
0a3e3a41c3 Implementation declarations for Archive 
llvm-svn: 17766
 2004-11-14 21:57:46 +00:00
Reid Spencer
131f129398 First working version 
llvm-svn: 17765
 2004-11-14 21:56:59 +00:00
Reid Spencer
0a3ec41881 Add the Archive library 
llvm-svn: 17764
 2004-11-14 21:55:27 +00:00
Misha Brukman
6da7a2e054 Mark an unmaterialized function as having GhostLinkage 
llvm-svn: 17748
 2004-11-14 21:02:55 +00:00
Reid Spencer
9534caa3bb Moved to lib/Bytecode/Archive in preparation for re-write. 
llvm-svn: 17742
 2004-11-14 19:59:40 +00:00
John Criswell
5be81b837b Recognize compressed LLVM bytecode files. 
This should fix the problem of not being able to link compressed LLVM
bytecode files from LLVM libraries.

llvm-svn: 17648
 2004-11-09 19:37:07 +00:00
Reid Spencer
c9c7c7fbee * Comments & cleanup per CL code review. 
* Accept 'llvc' as signature for compressed bytecode

llvm-svn: 17579
 2004-11-07 18:20:55 +00:00
Reid Spencer
152f895e9b Add comments per CL code review. 
llvm-svn: 17578
 2004-11-07 18:19:00 +00:00
Reid Spencer
1446cd065f * Add comments and cleanup per CL code review 
* Make signature for compressed bytecode llvc instead of unreadable
* Make the CompressionContext have a constructor and destructor.

llvm-svn: 17576
 2004-11-07 18:17:38 +00:00
Reid Spencer
a81994464f Add support for compressed bytecode 
llvm-svn: 17535
 2004-11-06 23:17:23 +00:00
Reid Spencer
bf14271ed6 Implement the GetBytecodeSymbols interface function to extract just the 
externally visible defined symbols from a bytecode file.

llvm-svn: 17503
 2004-11-06 08:56:40 +00:00
Reid Spencer
c3a4c8a346 Makefile for the LLVMArchive library. 
llvm-svn: 17500
 2004-11-06 08:52:36 +00:00
Reid Spencer
8907e56650 First kinda/sorta working version of the Archive library. Reading is not 
yet supported but writing works. Way too early to review this. More to come

llvm-svn: 17499
 2004-11-06 08:51:45 +00:00
Reid Spencer
36b5b2c07e Fix library name. 
llvm-svn: 17305
 2004-10-28 05:32:01 +00:00
Reid Spencer
ccdfdd7346 Fix name of library 
llvm-svn: 17304
 2004-10-28 05:30:54 +00:00