Rafael Espindola
746609067c
Remove dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242804 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-21 16:50:57 +00:00
Rafael Espindola
7eeb71ddc3
Replace the last uses of ELF::getSymbolName in llvm-readobj.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242798 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-21 16:26:21 +00:00
Rafael Espindola
fcadda639e
llvm-readobj: use the associated string table to print symbols. NFI.
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This just removes some cases that require ELFFile to eagerly parse the ELF
file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-21 16:02:10 +00:00
Rafael Espindola
ab466de617
Remove unused variable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242789 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-21 14:45:56 +00:00
Rafael Espindola
04d208815c
Don't do a walk over the dynamic table just to find DT_SONAME.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242752 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-21 01:01:29 +00:00
Rafael Espindola
0377a22491
Simplify now that we can iterate backwards. NFC.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242715 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-20 21:45:56 +00:00
Rafael Espindola
d94e17bde9
Simplify iterating over the dynamic section and report broken ones.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242712 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-20 21:23:29 +00:00
Rafael Espindola
1c12cc02fd
Remove Elf_Rela_Iter and Elf_Rel_Iter.
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Use just the pointers and check for invalid relocation sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242700 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-20 20:07:50 +00:00
Rafael Espindola
96d9043a78
Report errors an invalid virtual addresses.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242676 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-20 14:45:03 +00:00
Rafael Espindola
3c7642e230
Remove unnecessary code.
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We were locating the dynamic string table via both the section and segment
headers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242674 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-20 14:29:00 +00:00
Rafael Espindola
96a1f00376
Simplify the search for which segment has a virtual address. NFC.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242672 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-20 14:15:38 +00:00
Rafael Espindola
9a4133e1ee
Simplify iterating over program headers and detect corrupt ones.
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We now use a simple pointer and have range loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242669 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-20 13:35:33 +00:00
Hans Wennborg
a69b1311b2
Allocate the IntervalMap in ELF.h on the heap to work around MSVC alignment bug (PR24113)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242157 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-14 16:27:16 +00:00
Michael J. Spencer
d37a9dfc0b
[Object][ELF] Handle the dynamic string table in files without a section table.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241937 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-10 20:11:57 +00:00
NAKAMURA Takumi
89a6fba75e
llvm/Object/ELF.h: Appease g++-4.7.2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241895 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-10 08:43:41 +00:00
Michael J. Spencer
478d483d7e
Fix shadowing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241870 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-09 22:42:21 +00:00
Michael J. Spencer
8109763d68
[Object][ELF] Support dumping hash-tables from files with no section table.
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This time without breaking the bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241869 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-09 22:32:24 +00:00
Adrian Prantl
2efb9f7c3e
Temporarily reverting 241765, 241768, and 241772 to unbreak the build bots.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241781 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-09 02:14:49 +00:00
Michael J. Spencer
43dce9c732
Fix typename issues.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241768 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-09 00:46:24 +00:00
Michael J. Spencer
7d0e4c73d4
[Object][ELF] Support dumping hash-tables from files with no section table.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241765 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-09 00:21:06 +00:00
Rafael Espindola
cca9ef3247
Delete dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241353 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-03 14:46:17 +00:00
Rafael Espindola
abdd9e7330
Continue to remove the notion that ELF has dynamic and static symbols.
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The ELFObjectFile now just reasons about a section/index pair, removing
one of the users that force ELF.h to maintain the difference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241344 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-03 12:00:05 +00:00
Rafael Espindola
3a27979633
Handle .dynsym a bit more like we handle .symtab.
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They have the same format and we find them in the same way, no reason to handle
them differently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241280 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-02 16:03:38 +00:00
Rafael Espindola
adc9db9825
Use default member initializes. NFC.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241277 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-02 15:48:05 +00:00
Rafael Espindola
e4e6f29c93
Improve error message.
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Thanks to Sean Silva for the suggestion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241255 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-02 11:48:48 +00:00
Rafael Espindola
df3edb6d36
Return ErrorOr from getSection.
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This also improves the logic of what is an error:
* getSection(uint_32): only return an error if the index is out of bounds. The
index 0 corresponds to a perfectly valid entry.
* getSection(Elf_Sym): Returns null for symbols that normally don't have
sections and error for out of bound indexes.
In many places this just moves the report_fatal_error up the stack, but those
can then be fixed in smaller patches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241156 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-01 12:56:27 +00:00
Rafael Espindola
4a04da337e
Remove Elf_Shdr_Iter. Diagnose files with invalid section header sizes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241109 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-30 19:58:10 +00:00
Rafael Espindola
28bec63a7e
Fix the name of the iterator functions to match the coding standards.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241074 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-30 15:33:44 +00:00
Rafael Espindola
e8ff062325
Report an error on invalid sh_entsize.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241070 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-30 14:59:20 +00:00
NAKAMURA Takumi
d6751a82b3
ELF.h: Prune obsolete comments removed in r240996. [-Wdocumentation]
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FIXME: Should they be moved onto Elf_Sym_Impl::getNmae()?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241044 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-30 05:59:13 +00:00
Rafael Espindola
3d176ae165
Convert obj->getSymbolName to sym->getName.
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I doesn't depend on the object anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240996 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-29 21:24:55 +00:00
Rafael Espindola
9a6c902332
Factor out the checking of string tables.
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This moves the error checking for string tables to getStringTable which returns
an ErrorOr<StringRef>.
This improves error checking, makes it uniform across all string tables and
makes it possible to check them once instead of once per name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240950 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-29 14:39:25 +00:00
Rafael Espindola
db89b93b44
Convert an assert that can fail into error checking.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240944 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-29 14:02:24 +00:00
Rafael Espindola
e8f07a7eb3
Remove Elf_Sym_Iter.
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It was a fairly broken concept for an ELF only class.
An ELF file can have two symbol tables, but they have exactly the same
format. There is no concept of a dynamic or a static symbol. Storing this
on the iterator also makes us do more work per symbol than necessary. To fetch
a name we would:
* Find if we had a static or a dynamic symbol.
* Look at the corresponding symbol table and find the string table section.
* Look at the string table section to fetch its contents.
* Compute the name as a substring of the string table.
All but the last step can be done per symbol table instead of per symbol. This
is a step in that direction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240939 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-29 12:38:31 +00:00
Rafael Espindola
aaaa38cb95
Fix error handling in getString and simplify callers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240810 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-26 18:42:17 +00:00
Rafael Espindola
b82800d00e
Delete dead code. NFC.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240807 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-26 18:32:53 +00:00
Michael J. Spencer
7358cbc837
[ELF] Add some accessors for lld.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240730 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-25 23:40:41 +00:00
Michael J. Spencer
4cbb2db3ab
[Object][ELF] Add support for dumping dynamic relocations when sections are stripped.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240703 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-25 21:47:32 +00:00
Rafael Espindola
1e6b8f552c
Don't get confused with sections whose section number is reserved.
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It is perfectly possible for SHNDX to contain indexes that have the same value
as reserved st_shndx values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240544 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-24 14:48:54 +00:00
Alexey Samsonov
85529a57b4
Revert "[Object, ELF] Fix segmentation fault in ELFFile::getSectionName()."
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This reverts commit r239124.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239125 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-04 23:58:31 +00:00
Alexey Samsonov
83f903f352
[Object, ELF] Fix segmentation fault in ELFFile::getSectionName().
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Don't do a null dereference if .shstrtab section is missing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239124 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-04 23:40:23 +00:00
Rafael Espindola
201a551929
Fix the interpretation of a 0 st_name.
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The ELF spec is very clear:
-----------------------------------------------------------------------------
If the value is non-zero, it represents a string table index that gives the
symbol name. Otherwise, the symbol table entry has no name.
--------------------------------------------------------------------------
In particular, a st_name of 0 most certainly doesn't mean that the symbol has
the same name as the section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238899 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-03 05:14:22 +00:00
Rafael Espindola
9751e35f20
Simplify now that we always use an alignment of 2 for ELF files.
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This saves 123144 bytes out of llvm-nm on powerpc64le.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238824 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-02 12:05:27 +00:00
Alexey Samsonov
8ecf661ef1
Object, ELF: Use error code instead of calling report_fatal_error()
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Make createELFObjectFile() return object_error::parse_failed on
encountering invalid ELF file, instead of crashing the program.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238481 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-28 20:25:42 +00:00
Shankar Easwaran
abc795d1f6
[Object][ELF] ELFEntityIterator : Add operators for random access
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Fix review comments from djasper.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232494 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-17 15:44:20 +00:00
Shankar Easwaran
64a7eb58cd
[Object][ELF] ELFEntityIterator : Add operators for random access
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Add operators add/subtract for random access. This is essentially used by
lld.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232453 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-17 02:12:35 +00:00
David Blaikie
f7699e85c0
Remove some explicit copy assignment operators is favor of implicit ones, as their presence makes the use of the implicit copy ctor deprecated in C++11
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231102 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-03 19:20:13 +00:00
Craig Topper
3512034554
Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216525 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-27 05:25:25 +00:00
Alp Toker
bb7ad610ef
Fix the MSVC build following r212382
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Looks like the casts are needed there after all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212399 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-06 10:54:41 +00:00
Alp Toker
1a5e5e3814
Don't use StringRef iterator functions for data access
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And also remove some redundant casts from r212371.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212397 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-06 10:32:55 +00:00