From cab368b4ac762d3577c111556be8468eb1579f8f Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sun, 3 Sep 2023 15:40:48 +0200
Subject: [PATCH] infer_current_exe: Avoid picking non-path from maps

Some ports are not showing paths in /proc/self/maps yet, so better make
sure that we actually get a path before returning it, and fallback to
current_exe() otherwise.
---
 src/symbolize/gimli/libs_dl_iterate_phdr.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/symbolize/gimli/libs_dl_iterate_phdr.rs b/src/symbolize/gimli/libs_dl_iterate_phdr.rs
index 9f0304ce8..644520d42 100644
--- a/src/symbolize/gimli/libs_dl_iterate_phdr.rs
+++ b/src/symbolize/gimli/libs_dl_iterate_phdr.rs
@@ -25,7 +25,9 @@ fn infer_current_exe(base_addr: usize) -> OsString {
             .map(|e| e.pathname())
             .cloned();
         if let Some(path) = opt_path {
-            return path;
+            if path.as_bytes()[0] as char == '/' {
+                return path;
+            }
         }
     }
     env::current_exe().map(|e| e.into()).unwrap_or_default()