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authorManish Goregaokar <manishsmail@gmail.com>2021-09-15 14:56:56 -0700
committerGitHub <noreply@github.com>2021-09-15 14:56:56 -0700
commit84646e9d67a5941d52bfa5a2ae4e4e29e30808fe (patch)
treebe6d6c700cdf9366c960a57da1432f75a1852e12 /compiler/rustc_session/src/options.rs
parent2c7bc5e33c25e29058cbafefe680da8d5e9220e9 (diff)
parentc0118289efbd3d0c61ae8912426a211e53abe208 (diff)
Rollup merge of #87320 - danakj:debug-compilation-dir, r=michaelwoerister
Introduce -Z remap-cwd-prefix switch

This switch remaps any absolute paths rooted under the current
working directory to a new value. This includes remapping the
debug info in `DW_AT_comp_dir` and `DW_AT_decl_file`.

Importantly, this flag does not require passing the current working
directory to the compiler, such that the command line can be
run on any machine (with the same input files) and produce the
same results. This is critical property for debugging compiler
issues that crop up on remote machines.

This is based on adetaylor's https://github.com/rust-lang/rust/commit/dbc4ae7cba0ba8d650b91ddd459b86a02a2d05c5

Major Change Proposal: https://github.com/rust-lang/compiler-team/issues/450
Discussed on #38322. Would resolve issue #87325.
Diffstat (limited to 'compiler/rustc_session/src/options.rs')
-rw-r--r--compiler/rustc_session/src/options.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs
index bb29a87035e..8110afe75fa 100644
--- a/compiler/rustc_session/src/options.rs
+++ b/compiler/rustc_session/src/options.rs
@@ -1250,6 +1250,8 @@ options! {
         "whether ELF relocations can be relaxed"),
     relro_level: Option<RelroLevel> = (None, parse_relro_level, [TRACKED],
         "choose which RELRO level to use"),
+    remap_cwd_prefix: Option<PathBuf> = (None, parse_opt_pathbuf, [TRACKED],
+        "remap paths under the current working directory to this path prefix"),
     simulate_remapped_rust_src_base: Option<PathBuf> = (None, parse_opt_pathbuf, [TRACKED],
         "simulate the effect of remap-debuginfo = true at bootstrapping by remapping path \
         to rust's source base directory. only meant for testing purposes"),