From 6b987188485760f7818a5d110a878b4c33177068 Mon Sep 17 00:00:00 2001
From: Patrick Lipka <patrick.lipka@codasip.com>
Date: Mon, 18 Aug 2025 17:31:03 +0200
Subject: [PATCH] generate output filename

---
 src/rvprof_utils.c | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/rvprof_utils.c b/src/rvprof_utils.c
index 7861eed..563ddbc 100644
--- a/src/rvprof_utils.c
+++ b/src/rvprof_utils.c
@@ -43,4 +43,27 @@ char* rvprof_utils_get_program_name(void){
     
     // option 4: fallback
     return "unknown_program";
-}
\ No newline at end of file
+}
+
+char* rvprof_utils_generate_output_filename(void){
+    if (g_rvprof.config.output_filename) {
+        return g_rvprof.config.output_filename;
+    }
+    
+    const char* prog_name = rvprof_utils_get_program_name();
+    size_t name_len = strlen(prog_name);
+    const char* suffix = "_rvprof.log";
+    size_t suffix_len = strlen(suffix);
+    
+    char* filename = rvprof_malloc(name_len + suffix_len + 1);
+    if (filename) {
+        strcpy(filename, prog_name);
+        strcat(filename, suffix);
+        g_rvprof.config.output_filename = filename;
+        return filename;
+    }
+    
+    // fallback
+    return "rvprof_output.log";
+}
+