FreeChainXenon/binutils-gdb
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gdb, btrace: fix family and model computation

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In gdb/nat/linux-btrace.c:btrace_this_cpu() we initialize the cpu
structure given to the libipt btrace decoder.

We only consider the extended model field for family 0x6 and forget about
family 0xf and we don't consider the extended family field.  Fix it.
This commit is contained in:
Markus Metzger 2022-10-20 16:27:34 +02:00
parent 56d4450bdf
commit d9757bcd43
1 changed files with 4 additions and 2 deletions
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6
gdb/nat/linux-btrace.c
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@ -84,9 +84,11 @@ btrace_this_cpu (void)
cpu.vendor = CV_INTEL;
cpu.family = (cpuid >> 8) & 0xf;
cpu.model = (cpuid >> 4) & 0xf;
if (cpu.family == 0xf)
cpu.family += (cpuid >> 20) & 0xff;
if (cpu.family == 0x6)
cpu.model = (cpuid >> 4) & 0xf;
if ((cpu.family == 0x6) || ((cpu.family & 0xf) == 0xf))
cpu.model += (cpuid >> 12) & 0xf0;
}
}