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from rpython.rtyper.lltypesystem import lltype, rffi
from rpython.translator.tool.cbuild import ExternalCompilationInfo
from rpython.jit.backend.x86.arch import WORD
SEGMENT_FS = '\x64'
SEGMENT_GS = '\x65'
if WORD == 4:
SEGMENT_TL = SEGMENT_GS
_instruction = "movl %%gs:0, %0"
else:
SEGMENT_TL = SEGMENT_FS
_instruction = "movq %%fs:0, %0"
eci = ExternalCompilationInfo(post_include_bits=['''
#define RPY_STM_JIT 1
static long pypy__threadlocal_base(void)
{
/* XXX ONLY LINUX WITH GCC/CLANG FOR NOW XXX */
long result;
asm("%s" : "=r"(result));
return result;
}
static long pypy__get_errno_tl(void)
{
return ((long)&errno) - pypy__threadlocal_base();
}
''' % _instruction])
threadlocal_base = rffi.llexternal(
'pypy__threadlocal_base',
[], lltype.Signed,
compilation_info=eci,
_nowrapper=True,
) #transactionsafe=True)
get_errno_tl = rffi.llexternal(
'pypy__get_errno_tl',
[], lltype.Signed,
compilation_info=eci,
_nowrapper=True,
) #transactionsafe=True)
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