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| author | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-08-12 18:29:43 +0000 |
|---|---|---|
| committer | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-08-12 18:29:43 +0000 |
| commit | 67d135ae40b121a138e334a175d0e02dbb54eeca (patch) | |
| tree | 8e7ef892ab3d66802b5f53af56ba6a36a5911742 /include | |
| parent | 353476cbbb80881a754a90abc13851a884a4e26c (diff) | |
| download | external_llvm-67d135ae40b121a138e334a175d0e02dbb54eeca.zip external_llvm-67d135ae40b121a138e334a175d0e02dbb54eeca.tar.gz external_llvm-67d135ae40b121a138e334a175d0e02dbb54eeca.tar.bz2 | |
Misc enhancements to LTO:
1. Add some helper classes for partitions. They are designed in a
way such that the top-level LTO driver will not see much difference
with or without partitioning.
2. Introduce work-dir. Now all intermediate files generated during
LTO phases will be saved under work-dir. User can specify the workdir
via -lto-workdir=/path/to/dir. By default the work-dir will be
erased before linker exit. To keep the workdir, do -lto-keep, or -lto-keep=1.
TODO: Erase the workdir, if the linker exit prematurely.
We are currently not able to remove directory on signal. The support
routines simply ignore directory.
3. Add one new API lto_codegen_get_files_need_remove().
Linker and LTO plugin will communicate via this API about which files
(including directories) need to removed before linker exit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188188 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm-c/lto.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/llvm-c/lto.h b/include/llvm-c/lto.h index 40110fd..a7a942d 100644 --- a/include/llvm-c/lto.h +++ b/include/llvm-c/lto.h @@ -284,6 +284,18 @@ lto_codegen_compile(lto_code_gen_t cg, size_t* length); extern bool lto_codegen_compile_to_file(lto_code_gen_t cg, const char** name); +/** + * Get intermediate files that need to be removed before linker exit. Upon + * return, the paths of the files need to be removed is written to "paths". The + * paths are separated by a single '\0', and the last path is ended by double + * '\0's. A file could be a directory; in this case, the entire directory needs + * to be removed recursively. + * + * It is only necessary to call this function after \p lto_codegen_compile was + * successfully called. + */ +extern void +lto_codegen_get_files_need_remove(lto_code_gen_t cg, const char **paths); /** * Sets options to help debug codegen bugs. |