From: Simon Kuenzer <simon@unikraft.io>
Date: Thu, 16 Mar 2023 16:31:42 +0000 (+0100)
Subject: lib/ukboot: Print environment variables before entering main
X-Git-Tag: RELEASE-0.13.0~51
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=ec2c285ea91fac0a178e6c550c122e6bc82f10dd;p=unikraft%2Funikraft.git

lib/ukboot: Print environment variables before entering main

Signed-off-by: Simon Kuenzer <simon@unikraft.io>
Reviewed-by: Delia Pavel <delia_maria.pavel@stud.acs.upb.ro>
Approved-by: Razvan Deaconescu <razvand@unikraft.io>
Tested-by: Unikraft CI <monkey@unikraft.io>
GitHub-Closes: #868
---

diff --git a/lib/ukboot/boot.c b/lib/ukboot/boot.c
index 01d74ad6b..836d0456f 100644
--- a/lib/ukboot/boot.c
+++ b/lib/ukboot/boot.c
@@ -224,9 +224,16 @@ void ukplat_entry_argp(char *arg0, char *argb, __sz argb_len)
 	ukplat_entry(argc, argv);
 }
 
+#if CONFIG_LIBPOSIX_ENVIRON
+extern char **environ;
+#endif /* CONFIG_LIBPOSIX_ENVIRON */
+
 /* defined in <uk/plat.h> */
 void ukplat_entry(int argc, char *argv[])
 {
+#if CONFIG_LIBPOSIX_ENVIRON
+	char **envp;
+#endif /* CONFIG_LIBPOSIX_ENVIRON */
 	int rc = 0;
 #if CONFIG_LIBUKALLOC
 	struct uk_alloc *a = NULL;
@@ -380,6 +387,17 @@ void ukplat_entry(int argc, char *argv[])
 		(*ctorfn)();
 	}
 
+#if CONFIG_LIBPOSIX_ENVIRON
+	envp = environ;
+	if (envp) {
+		uk_pr_info("Environment variables:\n");
+		while (*envp) {
+			uk_pr_info("\t%s\n", *envp);
+			envp++;
+		}
+	}
+#endif /* CONFIG_LIBPOSIX_ENVIRON */
+
 	uk_pr_info("Calling main(%d, [", argc);
 	for (i = 0; i < argc; ++i) {
 		uk_pr_info("'%s'", argv[i]);