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Change support vector to Windows 8+

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Doing this makes binaries tinier, since we don't need to have all the
extra code for supporting a 32-bit address space. It also benefits us
because we're able to use WIN32 futexes, which makes locking simpler.

b69f3d2488 is what officially ended our
Windows 7 support. This change is merely a formalization. You can use
old versions of Cosmo now and forevermore if you need Windows 7 since
our repository is hermetic and vendors all its dependencies.

Won't fix #617
This commit is contained in:
Justine Tunney 2022-09-15 03:49:34 -07:00
parent 6c90f830d9
commit 134ffee519
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
25 changed files with 296 additions and 167 deletions
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15
libc/calls/getcpucount.c
View file

@ -22,6 +22,7 @@
#include "libc/calls/weirdtypes.h"
#include "libc/dce.h"
#include "libc/macros.internal.h"
#include "libc/nt/accounting.h"
#include "libc/nt/dll.h"
#include "libc/nt/struct/systeminfo.h"
#include "libc/nt/systeminfo.h"
@ -61,18 +62,6 @@ static unsigned GetCpuCountBsd(void) {
}
}
static textwindows unsigned GetCpuCountWindows(void) {
struct NtSystemInfo si;
uint32_t (*f)(uint16_t);
if ((f = GetProcAddress(GetModuleHandle("KERNEL32"),
"GetMaximumProcessorCount"))) {
return f(ALL_PROCESSOR_GROUPS);
} else {
GetSystemInfo(&si);
return si.dwNumberOfProcessors;
}
}
static unsigned GetCpuCountImpl(void) {
if (!IsWindows()) {
if (!IsBsd()) {
@ -81,7 +70,7 @@ static unsigned GetCpuCountImpl(void) {
return GetCpuCountBsd();
}
} else {
return GetCpuCountWindows();
return GetMaximumProcessorCount(ALL_PROCESSOR_GROUPS);
}
}