From 770a2582de13a876790f1de35317d6c3d3347b23 Mon Sep 17 00:00:00 2001
From: Fabian Homborg <FHomborg@gmail.com>
Date: Sat, 7 May 2022 14:50:31 +0200
Subject: [PATCH] Give special error for when file failed to execute but is
 executable

This is after we've tried to find the interpreter, so we would already
have complained about e.g. /usr/bin/pthyon not existing.

Realistically the most common case here is things that don't start
with a shebang like ELFs. Writing special extraction code here is
overkill, and I can't see a good function to do it for us.

But this should point you in the right direction.

Fixes #8938
---
 src/postfork.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/postfork.cpp b/src/postfork.cpp
index 9d78351a3..84f2e101e 100644
--- a/src/postfork.cpp
+++ b/src/postfork.cpp
@@ -469,6 +469,10 @@ void safe_report_exec_error(int err, const char *actual_cmd, const char *const *
                                "executable command.",
                                actual_cmd, interpreter);
                 }
+            } else if (access(actual_cmd, X_OK) == 0) {
+                FLOGF_SAFE(exec,
+                           "Failed to execute process '%s': The file exists and is executable. Check the interpreter or linker?",
+                           actual_cmd);
             } else {
                 FLOGF_SAFE(exec,
                            "Failed to execute process '%s': The file does not exist or could not "