Commit Graph

6 Commits

Author SHA1 Message Date
Pete Cooper c4a12a08e2 Have one version of libSystem for each arch. NFC.
An upcoming commit will change how we choose to reference a dylib.  Currently
dylibs are only given an LC_LOAD_DYLIB in the final image if an atom is used.
This is different from ld64 which adds the load command when the dylib is referenced
on the cmdline.

In order to change this behaviour, we need libSystem.yaml to actually contain a mach header
so that it is parsed as a dylib, instead of currently being parsed as a normalised file.

To get a mach header, we also require an arch, so now we have one libsystem per arch and
all the tests have been updated to choose the correct one.

llvm-svn: 278372
2016-08-11 18:08:59 +00:00
Pete Cooper 3f564a52d0 Parsed alignment should be a power of 2.
The .o path always makes sure to store a power of 2 value in the
Section alignment.  However, the YAML code didn't verify this.

Added verification and updated all the tests which had a 3 but meant
to have 2^3.

llvm-svn: 264228
2016-03-24 00:36:37 +00:00
Pete Cooper 466d4b006b Don't bypass the GOT for delta32toGOT references.
The gcc_except_tab was generating these references to point to the typeinfo in the data section.

gcc_except_tab also had the DW_EH_PE_indirect flag set which means that at runtime we are going
to dereference this entry as if it is in the GOT.

Reviewed by Nick Kledzik in http://reviews.llvm.org/D15360.

llvm-svn: 255085
2015-12-09 00:46:02 +00:00
Rui Ueyama 035025c0da Remove trailing whitespace characters.
llvm-svn: 235897
2015-04-27 17:18:04 +00:00
Rafael Espindola c08ab8e6e4 Delete unnecessary generality in loadFile.
loadFile could load mulitple files just because yaml has a feature for
putting multiple documents in one file.

Designing a linker around what yaml can do seems like a bad idea to
me. This patch changes it to read a single file.

There are further improvements to be done to the api and they
will follow shortly.

llvm-svn: 235724
2015-04-24 15:51:45 +00:00
Nick Kledzik a441b7b050 [mach-o] add support for arm64 compact unwind info
Tim previously added generic compact unwind processing and x86_64 support.
This patch adds arm64 support.

llvm-svn: 223103
2014-12-02 01:50:38 +00:00