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43 Commits

Author SHA1 Message Date
Rafael Espindola
4b0d25a0db Correctly handle weak undefined symbols. Before we would get a invalid binding 
(2 == STB_WEAK | STB_GLOBAL).

llvm-svn: 114690
 2010-09-23 19:55:14 +00:00
Rafael Espindola
44da043992 Correctly compute the offset of the symbol. Forgot these bits from the 
last commit.

llvm-svn: 114678
 2010-09-23 18:01:31 +00:00
Rafael Espindola
ce04ba0f70 Represent relocations against local symbols as relocations against the section 
they are in. Both ways should be equivalent, but gas produces relocations
against the section.

Roman wrote the patch, I added the test.

llvm-svn: 114667
 2010-09-23 17:25:18 +00:00
Rafael Espindola
4f8e36e163 Fix the FIXME. 
llvm-svn: 114639
 2010-09-23 14:14:56 +00:00
Rafael Espindola
ef6cf9dce9 Fix typo and add a FIXME. 
llvm-svn: 114570
 2010-09-22 19:04:41 +00:00
Rafael Espindola
93f3fb8aca Revert unrelated change that was accidentally included in the previous commit. 
llvm-svn: 114383
 2010-09-21 00:40:19 +00:00
Rafael Espindola
02af3cdd58 Implement support for .local and its "interesting" interactions with .comm. 
llvm-svn: 114382
 2010-09-21 00:24:38 +00:00
Rafael Espindola
78fc1f7f66 Produce a R_X86_64_32 when the value is >=0. 
llvm-svn: 114339
 2010-09-20 19:20:47 +00:00
Rafael Espindola
9c3a9bf8aa Make sure the STT_FILE symbol is the first one in the symbol table. 
llvm-svn: 114285
 2010-09-18 15:03:21 +00:00
Rafael Espindola
acd5bacfb9 Avoid relocations in a common case. 
llvm-svn: 114229
 2010-09-17 22:34:41 +00:00
Rafael Espindola
d542892fc0 Print the address of sections as 0 and create the metadata sections in the 
same order as gnu as.

llvm-svn: 114109
 2010-09-16 19:46:31 +00:00
Benjamin Kramer
7ca791ef4f MCELF: Write relocation fragments in the right endian. 
- This code is gross, but does the job for now.

llvm-svn: 113509
 2010-09-09 18:01:29 +00:00
Roman Divacky
536c4ab8bd Make ELF OS ABI dependent on the OS from target triple. 
llvm-svn: 113508
 2010-09-09 17:57:50 +00:00
Roman Divacky
c0f16ab31a ELF_STB_Local is 0 so setting and checking it must be done specially 
llvm-svn: 113375
 2010-09-08 18:08:40 +00:00
Roman Divacky
d56d1cd938 Unresolved weak symbols have value equal zero. 
llvm-svn: 113358
 2010-09-08 14:29:45 +00:00
Benjamin Kramer
2447226e73 MCELF: Align symtab, relocation sections and section headers properly. Patch by Krister Wombell. 
llvm-svn: 113155
 2010-09-06 16:11:52 +00:00
Benjamin Kramer
3f8b8c1f5b Allow creation of SHT_NULL sections, from Roman Divacky. 
llvm-svn: 112605
 2010-08-31 17:03:33 +00:00
Benjamin Kramer
6c5076f317 MCELF: The value of all common symbols is the offset from the start of the section. Patch by Roman Divacky. 
llvm-svn: 112492
 2010-08-30 17:20:17 +00:00
Benjamin Kramer
b540b09a7c The value is offset from the start of the section for non-common symbols, submitted by Jordan Gordeev. 
llvm-svn: 112473
 2010-08-30 12:00:16 +00:00
Benjamin Kramer
ca65cc9222 Index external symbols by symbol table instead of parent section, by Roman Divacky. 
llvm-svn: 112472
 2010-08-30 11:59:29 +00:00
Chris Lattner
b2dbdbc795 squish dead code. 
llvm-svn: 112350
 2010-08-28 03:21:03 +00:00
Benjamin Kramer
4e04c2e69f MCELF: Always overwrite FixedValue. 
llvm-svn: 112259
 2010-08-27 10:38:39 +00:00
Benjamin Kramer
537450a5e8 MCELF: Fix a thinko of mine. 
llvm-svn: 112203
 2010-08-26 18:12:04 +00:00
Benjamin Kramer
a1f93ec939 MCELF: Compensate for the addend on i386. Patch by Roman Divacky, with some cleanups. 
llvm-svn: 112197
 2010-08-26 17:23:02 +00:00
Benjamin Kramer
ebee78319c MCELF: Use precomputed symbol indices, patch by Roman Divacky. 
llvm-svn: 112079
 2010-08-25 20:09:43 +00:00
Benjamin Kramer
958ba693b5 Relocate against parent if the symbol is not in section or it's a common symbol, from Roman Divacky. 
llvm-svn: 111925
 2010-08-24 17:34:39 +00:00
Benjamin Kramer
b08a868783 Fix thinko. Having no tests is great ... 
llvm-svn: 111848
 2010-08-23 21:32:00 +00:00
Benjamin Kramer
005c0b532e Reduce code duplication. 
llvm-svn: 111846
 2010-08-23 21:23:52 +00:00
Benjamin Kramer
8961d86d95 ELFObjectWriter: Run ComputeSymbolTable before recording relocations. This way we can use the information it has computed and don't have to recompute the same stuff over and over again. 
llvm-svn: 111844
 2010-08-23 21:19:37 +00:00
Benjamin Kramer
be1f37f512 Add the symbol offset to the relocation value when we relocate against section. By Roman Divacky. 
llvm-svn: 111824
 2010-08-23 19:05:46 +00:00
Benjamin Kramer
c67b87ec44 Use the proper relocation section + cleanup, from Roman Divacky. 
llvm-svn: 111819
 2010-08-23 18:24:20 +00:00
Benjamin Kramer
574b1a27b1 MCELF: Count the section orders properly. Patch by Roman Divacky. 
llvm-svn: 111517
 2010-08-19 13:44:49 +00:00
Benjamin Kramer
5756afebba Remove dead code. Fixes a GCC warning. 
llvm-svn: 111271
 2010-08-17 19:45:05 +00:00
Benjamin Kramer
1e37b165c8 Sketch i386 relocations handling, from Roman Divacky. 
Hello world builds & runs now on i386/ELF with -integrated-as.

llvm-svn: 111264
 2010-08-17 18:20:28 +00:00
Benjamin Kramer
3bc7de0605 Use the correct entry size for relocation entries, from Roman Divacky. 
llvm-svn: 111259
 2010-08-17 17:56:13 +00:00
Benjamin Kramer
cc741eccfa Differentiate between RELA and REL relocations, from Roman Divacky. 
llvm-svn: 111252
 2010-08-17 17:30:07 +00:00
Benjamin Kramer
2bf444b7d4 One baby step towards i386 ELF, from Roman Divacky. 
llvm-svn: 111247
 2010-08-17 17:02:29 +00:00
Benjamin Kramer
3acf387e2d Try to silence a overeager GCC warning. 
llvm-svn: 111214
 2010-08-17 00:33:24 +00:00
Benjamin Kramer
41deb334b5 A round of minor cleanups for ELFObjectWriter. 
llvm-svn: 111213
 2010-08-17 00:00:46 +00:00
Benjamin Kramer
70e0faed21 Silence warnings and simplify code. Eliminate a 32/64 bit portability issue. 
llvm-svn: 111201
 2010-08-16 23:00:12 +00:00
Eli Friedman
39484fda25 Fixes for generation of ELF relocations. Patch by Roman Divacky. 
llvm-svn: 111183
 2010-08-16 21:17:09 +00:00
Eli Friedman
d2c0d2d0bb Fix a few warnings in and detabify MCELFStreamer and ELFObjectWriter. 
llvm-svn: 111175
 2010-08-16 19:15:06 +00:00
Matt Fleming
8183e01389 Add ELF ObjectWriter and Streamer support. 
I forgot to add these files in commit 111172.

llvm-svn: 111174
 2010-08-16 18:57:57 +00:00