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CPU (Linux): adds SPARC support (#2572)

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/proc/cpuinfo on sparc has none of the fields the generic fallback looks
for, so the module printed "Unknown (64)". The name is in "cpu", and the
frequency in "Cpu<n>ClkTck" -- in Hz, hex on sparc64, decimal on sparc32.
This commit is contained in:
Stian Halseth
2026-09-08 14:31:55 +02:00
committed by GitHub
parent a70c37fdaf
commit 7d0256fb85
2 changed files with 12 additions and 0 deletions
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CHANGELOG.md
+5
View File
@@ -1,3 +1,8 @@
# Unreleased
Features:
* Added CPU name and frequency detection support on SPARC. (CPU, Linux)
# 2.68.1
Changes:
src/detection/cpu/cpu_linux.c
+7
View File
@@ -619,6 +619,9 @@ static const char* parseCpuInfo(
(cpu->name.length == 0 && ffParsePropLine(line, "cpu :", &cpu->name)) ||
#elif __sh__
(cpu->name.length == 0 && ffParsePropLine(line, "cpu type :", &cpu->name)) ||
#elif __sparc__ || __sparc
(cpu->name.length == 0 && ffParsePropLine(line, "cpu :", &cpu->name)) ||
(cpuMHz->length == 0 && ffParsePropLine(line, "Cpu0ClkTck :", cpuMHz)) ||
#else
(cpu->name.length == 0 && ffParsePropLine(line, "model name :", &cpu->name)) ||
(cpu->name.length == 0 && ffParsePropLine(line, "model :", &cpu->name)) ||
@@ -1101,6 +1104,10 @@ static const char* detectPhysicalCores(FFCPUResult* cpu) {
if (cpu->name.length) {
ffStrbufPrependS(&cpu->name, "Machine ");
}
#elif __sparc__ || __sparc
// Cpu0ClkTck is in Hz, printed as "%016lx" by sparc64 and "%ld" by sparc32. A 32-bit userland can run
// on a 64-bit kernel, so take the base from the width of the value rather than from our own bitness.
cpu->frequencyBase = (uint32_t) (strtoull(cpuMHz.chars, nullptr, cpuMHz.length == 16 ? 16 : 10) / 1000000);
#endif
}