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* [newlib-cygwin] fhandler_proc.cc(format_proc_cpuinfo): add microcode
@ 2019-10-07 19:55 Ken Brown
0 siblings, 0 replies; only message in thread
From: Ken Brown @ 2019-10-07 19:55 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=b8ccc22762285dac75261d2beae778e6c460ce71
commit b8ccc22762285dac75261d2beae778e6c460ce71
Author: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>
Date: Mon Oct 7 10:23:03 2019 -0600
fhandler_proc.cc(format_proc_cpuinfo): add microcode
Add microcode from Windows registry Update Revision REG_BINARY.
Diff:
---
winsup/cygwin/fhandler_proc.cc | 26 +++++++++++++++++++++-----
1 file changed, 21 insertions(+), 5 deletions(-)
diff --git a/winsup/cygwin/fhandler_proc.cc b/winsup/cygwin/fhandler_proc.cc
index 8c290d2..51bbdc4 100644
--- a/winsup/cygwin/fhandler_proc.cc
+++ b/winsup/cygwin/fhandler_proc.cc
@@ -687,16 +687,30 @@ format_proc_cpuinfo (void *, char *&destbuf)
yield ();
DWORD cpu_mhz = 0;
- RTL_QUERY_REGISTRY_TABLE tab[2] = {
- { NULL, RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_NOSTRING,
- L"~Mhz", &cpu_mhz, REG_NONE, NULL, 0 },
- { NULL, 0, NULL, NULL, 0, NULL, 0 }
- };
+ union
+ {
+ LONG uc_len; /* -max size of buffer before call */
+ char uc_microcode[16];
+ } uc;
+ RTL_QUERY_REGISTRY_TABLE tab[3] =
+ {
+ { NULL, RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_NOSTRING,
+ L"~Mhz", &cpu_mhz, REG_NONE, NULL, 0 },
+ { NULL, RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_NOSTRING,
+ L"Update Revision", &uc, REG_NONE, NULL, 0 },
+ { NULL, 0, NULL, NULL, 0, NULL, 0 }
+ };
+
+ memset (&uc, 0, sizeof (uc.uc_microcode));
+ uc.uc_len = -16; /* -max size of microcode buffer */
RtlQueryRegistryValues (RTL_REGISTRY_ABSOLUTE, cpu_key, tab,
NULL, NULL);
cpu_mhz = ((cpu_mhz - 1) / 10 + 1) * 10; /* round up to multiple of 10 */
DWORD bogomips = cpu_mhz * 2; /* bogomips is double cpu MHz since MMX */
+ long long microcode = 0; /* at least 8 bytes for AMD */
+ memcpy (µcode, &uc, sizeof (microcode));
+
bufptr += __small_sprintf (bufptr, "processor\t: %d\n", cpu_number);
uint32_t maxf, vendor_id[4], unused;
@@ -789,11 +803,13 @@ format_proc_cpuinfo (void *, char *&destbuf)
"model\t\t: %d\n"
"model name\t: %s\n"
"stepping\t: %d\n"
+ "microcode\t: 0x%x\n"
"cpu MHz\t\t: %d.000\n",
family,
model,
in_buf.s + strspn (in_buf.s, " "),
stepping,
+ microcode,
cpu_mhz);
if (cache_size >= 0)
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2019-10-07 19:55 [newlib-cygwin] fhandler_proc.cc(format_proc_cpuinfo): add microcode Ken Brown
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