3 Commits

Author	SHA1	Message	Date
Fangrui Song	6acd300375	Reland D75382 "[lld] Initial commit for new Mach-O backend" ... With a fix for http://lab.llvm.org:8011/builders/clang-cmake-armv8-lld/builds/3636 Also trims some unneeded dependencies.	2020-04-02 12:03:43 -07:00
Oliver Stannard	af39151f3c	Revert "[lld] Initial commit for new Mach-O backend" ... This is causing buildbot failures on 32-bit hosts, for example: http://lab.llvm.org:8011/builders/clang-cmake-armv8-lld/builds/3636 This reverts commit 03f43b3aca.	2020-04-02 13:23:30 +01:00
Jez Ng	03f43b3aca	[lld] Initial commit for new Mach-O backend ... Summary: This is the first commit for the new Mach-O backend, designed to roughly follow the architecture of the existing ELF and COFF backends, and building off work that @ruiu and @pcc did in a branch a while back. Note that this is a very stripped-down commit with the bare minimum of functionality for ease of review. We'll be following up with more diffs soon. Currently, we're able to generate a simple "Hello World!" executable that runs on OS X Catalina (and possibly on earlier OS X versions; I haven't tested them). (This executable can be obtained by compiling `test/MachO/relocations.s`.) We're mocking out a few load commands to achieve this -- for example, we can't load dynamic libraries, but Catalina requires binaries to be linked against `dyld`, so we hardcode the emission of a `LC_LOAD_DYLIB` command. Other mocked out load commands include LC_SYMTAB and LC_DYSYMTAB. Differential Revision: https://reviews.llvm.org/D75382	2020-03-31 11:58:47 -07:00