Commit Graph

6 Commits

Author SHA1 Message Date
Rui Ueyama a959393a15 Add strings to .dynstr early.
Previously, we added strings from DynamicSection::finalize().
It was a bit tricky because finalize() is supposed to fix the final
size of the section, but adding new strings would change the size of
.dynstr section. So there was a dependency between finalize functions
of .dynamic and .dynstr.

However, I noticed that we can elimiante the dependency by simply
add strings early; we don't have to do that in finalize() but can do
from DynamicSection's ctor.

This patch defines a new function, DynamicSection::addEntries, to
add .dynamic entries that doesn't depend on other sections.

llvm-svn: 285784
2016-11-02 02:18:01 +00:00
Rafael Espindola cceacd7113 Don't depend on lld creating relocations in ro segments.
We currently don't do a good job of diagnosing inputs that would require
dynamic relocations to be applied to read only segments.

I am about to improve lld in that area, but unfortunately we developed
tests that depend on the current behavior.

To make clear what is actually changing, this first patch just updates
tests to not depend on the current behavior. In most cases this just
means using a rw section instead of a ro one, but that unfortunately
changes many addresses.

llvm-svn: 268145
2016-04-30 00:49:10 +00:00
Rafael Espindola e2c2461a6b Merge identical strings.
This avoids the need to have reserve and addString in sync.

We avoid hashing the global symbols again. This means that we don't
merge a global symbol that has the same name as some other string, but
that doesn't seem very common. The string table size is the same in
clang an scylladb with or without hashing global symbols again.

llvm-svn: 259136
2016-01-29 01:24:25 +00:00
Ed Maste f5d3cf6270 Add debugger rendezvous DT_DEBUG .dynamic entry
The runtime linker may store a pointer to a data structure used by
debuggers.

Differential Revision:	http://reviews.llvm.org/D15775

llvm-svn: 256942
2016-01-06 15:52:27 +00:00
Rafael Espindola 9c8904fb38 Rename ld.lld2 to ld.lld since it is the default.
llvm-svn: 253437
2015-11-18 06:11:01 +00:00
Rafael Espindola 4b1285c55a Rename test/elf2 to test/ELF.
llvm-svn: 253313
2015-11-17 05:36:42 +00:00