Get PSU version from vendor specific tool
The code was getting the version from PSU inventory object.
This commit changes the behavior to use a vendor-specific tool to get
the version directly, where the tool is expected to be configured during
build time.
Add an example get_version app that shows the expected behavior of the
tool:
* It accepts an argument of PSU inventory object;
* It outputs the version to stdout.
Tested: 1. Put and configure to use the example get_version on witherspoon,
verify that PSU software objects are created with the version
returned by the exmaple tool.
2. With the Witherspoon specific tool in
https://gerrit.openbmc-project.xyz/c/openbmc/witherspoon-pfault-analysis/+/24811,
verify the version is correctly got from the PSU inventory path
and the software objects are created.
Signed-off-by: Lei YU <mine260309@gmail.com>
Change-Id: I5195cb6fc8998a76b09abcfe0b107364cb180c01
diff --git a/vendor-example/get_version.cpp b/vendor-example/get_version.cpp
new file mode 100644
index 0000000..c0e3033
--- /dev/null
+++ b/vendor-example/get_version.cpp
@@ -0,0 +1,25 @@
+#include <cstdio>
+#include <string>
+
+// Get the version string for a PSU and output to stdout
+// In this example, it just returns the last 8 bytes as the version
+constexpr int NUM_OF_BYTES = 8;
+
+int main(int argc, char** argv)
+{
+ if (argc != 2)
+ {
+ printf("Usage: %s <psu-inventory-path>\n", argv[0]);
+ return 1;
+ }
+
+ std::string psu = argv[1];
+ if (psu.size() < NUM_OF_BYTES)
+ {
+ psu.append(NUM_OF_BYTES - psu.size(), '0'); //"0", 8 - psu.size());
+ }
+
+ printf("%s", psu.substr(psu.size() - NUM_OF_BYTES).c_str());
+
+ return 0;
+}