From: Willy Tarreau <w@1wt.eu>
Date: Wed, 18 Mar 2026 12:39:23 +0000 (+0100)
Subject: MINOR: debug: copy debug symbols from /usr/lib/debug when present
X-Git-Tag: v3.4-dev7~18
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e07c9ee575f3f666564f5d57d148a47d3bfb6372;p=thirdparty%2Fhaproxy.git

MINOR: debug: copy debug symbols from /usr/lib/debug when present

When set-dumpable=libs, let's also pick the debug symbols for the libs
we're loading. For now we only try /usr/lib/debug/<path>, which is quite
common and easy to guess. Build IDs could also be used but are more
complex to deal with, so let's stay simple for now.
---

diff --git a/src/tools.c b/src/tools.c
index 390f5f3d5..879879c47 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -6057,6 +6057,15 @@ static int dl_collect_libs_cb(struct dl_phdr_info *info, size_t size, void *data
 		goto leave;
 
 	load_file_into_tar(&ctx->storage, &ctx->size, ctx->prefix, fname, NULL, "haproxy-libs-dump");
+
+	/* try to load equivalent debug symbols for absolute paths  */
+	if (*fname == '/') {
+		char dbg[PATH_MAX];
+
+		snprintf(dbg, sizeof(dbg), "/usr/lib/debug%s", fname);
+		load_file_into_tar(&ctx->storage, &ctx->size, ctx->prefix, dbg, NULL, "haproxy-libs-dump");
+	}
+
  leave:
 	/* increment the object's number */
 	ctx->pos++;