use LD_LIBRARY_PATH for glibc instead of calling its loader

Calling the loader fails on non ELF executables. Exec, formerly run_cmd,
now takes two options: -l LD_LIBRARY_PATH, -p LD_PRELOAD.
-p sets LD_PRELOAD and -l LD_LIBRARY_PATH before executing the rest of argv.

glibc no longer uses cmd_prefix in favor of LD_LIBRARY_PATH.

1 files changed, 0 insertions, 18 deletions

diff --git a/src/run_cmd.c b/src/run_cmd.c
deleted file mode 100644
index aa15964..0000000
--- a/src/run_cmd.c
+++ /dev/null
@@ -1,18 +0,0 @@
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-int main(int argc, char* argv[]) {
-	if (argc < 3) {
-		printf("Usage: %s <ld_preload> <cmd> [cmd args]\n");
-		printf("\tset LD_PRELOAD to ld_preload and call execvp <cmd> [cmd args]\n");
-		return 1;
-	}
-
-	// Overwrite LD_PRELOAD.
-	setenv("LD_PRELOAD", argv[1], 1);
-
-	// Run cmd.
-	execvp(argv[2], &argv[2]);
-}