amd_smi: Update CHECK_SNPRINTF to allow for truncation of descriptions

[Treece-Burgess]

Pull Request Description

Currently on Instinct at Oregon (1 * MI100), the amd_smi component will be disabled. This is caused by the driver_version_hash description being larger than descr[PAPI_MAX_STR_LEN]. On Instinct the driver_version_hash is:

Linuxversion5.15.0-87-generic(buildd@lcy02-amd64-011)(gcc(Ubuntu11.4.0-1ubuntu1~22.04)11.4.0,GNUld(GNUBinutilsforUbuntu)2.38)#97-UbuntuSMPMonOct221:09:21UTC2023

One way to resolve this issue is by changing descr[PAPI_MAX_STR_LEN] to descr[PAPI_HUGE_STR_LEN]. As the long_descr can take up to PAPI_HUGE_STR_LEN. This has been done in the PR. However, this does not account for cases where the vendor descriptions could be larger than PAPI_HUGE_STR_LEN.

To account for this possibility CHECK_SNPRINTF has been updated to take a truncation argument. This argument can be either:

1. doNotAllowTruncation - Meaning if we cannot fully write the string to the buffer, we return PAPI_EBUF.
   • Event names fall under this option.
2. allowTruncation - Meaning if we cannot fully write the string to the buffer, we do not return PAPI_EBUF and proceed on.
   • Event descriptions and the error_string variable fall under this option.

In both cases a SUBDBG message will output.

Testing

Testing was done on Instinct at Oregon with 1 * MI100 and ROCm 7.2.0, the results are:

• PAPI build: ✅
• PAPI utilities*: ✅
• Component tests**: ✅

* - papi_component_avail, papi_native_avail, papi_command_line
** - amdsmi_energy_monotonic fails, but this does not appear to be due to this PR and I lack the permissions to run amdsmi_set_test.c

Author Checklist

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