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-rw-r--r--src/libcamera/utils.cpp26
1 files changed, 18 insertions, 8 deletions
diff --git a/src/libcamera/utils.cpp b/src/libcamera/utils.cpp
index 7e118faf..58ee7cc1 100644
--- a/src/libcamera/utils.cpp
+++ b/src/libcamera/utils.cpp
@@ -340,23 +340,33 @@ bool isLibcameraInstalled()
}
/**
- * \brief Identify the libcamera.so path
+ * \brief Retrieve the path to the build directory
*
- * This function locates the running libcamera.so and returns its full path,
- * including the file name.
+ * During development, it is useful to run libcamera binaries directly from the
+ * build directory without installing them. This function helps components that
+ * need to locate resources, such as IPA modules or IPA proxy workers, by
+ * providing them with the path to the root of the build directory. Callers can
+ * then use it to complement or override searches in system-wide directories.
*
- * \return A string stating the path
+ * If libcamera has been installed, the build directory path is not available
+ * and this function returns an empty string.
+ *
+ * \return The path to the build directory if running from a build, or an empty
+ * string otherwise
*/
-std::string libcameraPath()
+std::string libcameraBuildPath()
{
+ if (isLibcameraInstalled())
+ return std::string();
+
Dl_info info;
/* Look up our own symbol. */
- int ret = dladdr(reinterpret_cast<void *>(libcameraPath), &info);
+ int ret = dladdr(reinterpret_cast<void *>(libcameraBuildPath), &info);
if (ret == 0)
- return nullptr;
+ return std::string();
- return info.dli_fname;
+ return dirname(info.dli_fname) + "/../../";
}
} /* namespace utils */