Author: Armin Rigo <ar...@tunes.org>
Branch: errno-again
Changeset: r75404:666a00c88bbb
Date: 2015-01-16 20:42 +0100
http://bitbucket.org/pypy/pypy/changeset/666a00c88bbb/
Log: in-progress
diff --git a/rpython/jit/backend/test/runner_test.py
b/rpython/jit/backend/test/runner_test.py
--- a/rpython/jit/backend/test/runner_test.py
+++ b/rpython/jit/backend/test/runner_test.py
@@ -3091,12 +3091,11 @@
py.test.skip("Windows test only")
eci = ExternalCompilationInfo(
separate_module_sources=[r'''
- #include <stdio.h>
- #include <errno.h>
+ #include <windows.h>
RPY_EXPORTED long test_call_release_gil_readsaved_lasterror(
long a, long b, long c, long d, long e, long f, long g)
{
long r = GetLastError();
- printf("GetLastError() result: %ld\n", r);
+ //printf("GetLastError() result: %ld\n", r);
r += 100 * (a + 10*b + 100*c + 1000*d +
10000*e + 100000*f + 1000000*g);
return r;
@@ -3132,6 +3131,9 @@
#
assert result == 24 + 345678900
+ def test_call_release_gil_err_all(self):
+ xxx
+
def test_guard_not_invalidated(self):
cpu = self.cpu
i0 = BoxInt()
diff --git a/rpython/jit/backend/x86/callbuilder.py
b/rpython/jit/backend/x86/callbuilder.py
--- a/rpython/jit/backend/x86/callbuilder.py
+++ b/rpython/jit/backend/x86/callbuilder.py
@@ -20,6 +20,7 @@
CALL_ALIGN = 16 // WORD
stdcall_or_cdecl = sys.platform == "win32"
+handle_lasterror = sys.platform == "win32"
def align_stack_words(words):
return (words + CALL_ALIGN - 1) & ~(CALL_ALIGN-1)
@@ -31,6 +32,8 @@
# arguments, we need to decrease esp temporarily
stack_max = PASS_ON_MY_FRAME
+ result_value_saved_early = False
+
def __init__(self, assembler, fnloc, arglocs,
resloc=eax, restype=INT, ressize=WORD):
AbstractCallBuilder.__init__(self, assembler, fnloc, arglocs,
@@ -150,6 +153,23 @@
self.mc.ADD(ebp, imm(1)) # ebp any more
def write_real_errno(self, save_err):
+ tlofsreg = None
+ mc = self.mc
+
+ if handle_lasterror and (save_err & rffi.RFFI_READSAVED_LASTERROR):
+ # must call SetLastError(). There are no registers to save
+ # because we are on 32-bit in this case: no register contains
+ # the arguments to the main function we want to call afterwards.
+ from rpython.rlib.rwin32 import _SetLastError
+ SetLastError_addr = self.asm.cpu.cast_ptr_to_int(_SetLastError)
+ assert isinstance(self, CallBuilder32) # Windows 32-bit only
+ #
+ rpy_lasterror = llerrno.get_rpy_lasterror_offset(self.asm.cpu)
+ tlofsreg = edi # saved across the call to SetLastError
+ mc.MOV_rs(edi.value, THREADLOCAL_OFS - self.current_esp)
+ mc.PUSH_m((edi.value, rpy_lasterror))
+ mc.CALL(imm(SetLastError_addr))
+
if save_err & rffi.RFFI_READSAVED_ERRNO:
# Just before a call, read 'rpy_errno' and write it into the
# real 'errno'. Most registers are free here, including the
@@ -157,35 +177,54 @@
# pass the arguments on x86-64.
rpy_errno = llerrno.get_rpy_errno_offset(self.asm.cpu)
p_errno = llerrno.get_p_errno_offset(self.asm.cpu)
- mc = self.mc
- mc.MOV_rs(eax.value, THREADLOCAL_OFS - self.current_esp)
+ if tlofsreg is None:
+ tlofsreg = eax
+ mc.MOV_rs(eax.value, THREADLOCAL_OFS - self.current_esp)
if IS_X86_32:
tmpreg = edx
else:
tmpreg = r11 # edx is used for 3rd argument
- mc.MOV_rm(tmpreg.value, (eax.value, p_errno))
- mc.MOV32_rm(eax.value, (eax.value, rpy_errno))
+ mc.MOV_rm(tmpreg.value, (tlofsreg.value, p_errno))
+ mc.MOV32_rm(eax.value, (tlofsreg.value, rpy_errno))
mc.MOV32_mr((tmpreg.value, 0), eax.value)
elif save_err & rffi.RFFI_ZERO_ERRNO_BEFORE:
# Same, but write zero.
p_errno = llerrno.get_p_errno_offset(self.asm.cpu)
- mc = self.mc
- mc.MOV_rs(eax.value, THREADLOCAL_OFS - self.current_esp)
- mc.MOV_rm(eax.value, (eax.value, p_errno))
+ if tlofsreg is None:
+ tlofsreg = eax
+ mc.MOV_rs(eax.value, THREADLOCAL_OFS - self.current_esp)
+ mc.MOV_rm(eax.value, (tlofsreg.value, p_errno))
mc.MOV32_mi((eax.value, 0), 0)
def read_real_errno(self, save_err):
+ esi_is_threadlocal_ofs = False
+ mc = self.mc
+
if save_err & rffi.RFFI_SAVE_ERRNO:
# Just after a call, read the real 'errno' and save a copy of
# it inside our thread-local 'rpy_errno'. Most registers are
# free here, including the callee-saved ones, except 'ebx'.
rpy_errno = llerrno.get_rpy_errno_offset(self.asm.cpu)
p_errno = llerrno.get_p_errno_offset(self.asm.cpu)
- mc = self.mc
mc.MOV_rs(esi.value, THREADLOCAL_OFS)
mc.MOV_rm(edi.value, (esi.value, p_errno))
mc.MOV32_rm(edi.value, (edi.value, 0))
mc.MOV32_mr((esi.value, rpy_errno), edi.value)
+ esi_is_threadlocal_ofs = True
+
+ if handle_lasterror and (save_err & rffi.RFFI_SAVE_LASTERROR):
+ from rpython.rlib.rwin32 import _GetLastError
+ GetLastError_addr = self.asm.cpu.cast_ptr_to_int(_GetLastError)
+ assert isinstance(self, CallBuilder32) # Windows 32-bit only
+ #
+ rpy_lasterror = llerrno.get_rpy_lasterror_offset(self.asm.cpu)
+ self.save_result_value(save_edx=True)
+ self.result_value_saved_early = True
+ mc.CALL(imm(GetLastError_addr))
+ #
+ if not esi_is_threadlocal_ofs:
+ mc.MOV_rs(esi.value, THREADLOCAL_OFS)
+ mc.MOV32_mr((esi.value, rpy_lasterror), eax.value)
def move_real_result_and_call_reacqgil_addr(self, fastgil):
from rpython.jit.backend.x86 import rx86
@@ -205,8 +244,9 @@
if IS_X86_32:
assert css >= 16
if self.restype == 'L': # long long result: eax/edx
- mc.MOV_sr(12, edx.value)
- restore_edx = True
+ if not self.result_value_saved_early:
+ mc.MOV_sr(12, edx.value)
+ restore_edx = True
css_value = edx
old_value = ecx
elif IS_X86_64:
@@ -255,14 +295,16 @@
je_location = mc.get_relative_pos()
#
# Yes, we need to call the reacqgil() function
- self.save_result_value_reacq()
+ if not self.result_value_saved_early:
+ self.save_result_value(save_edx=False)
if self.asm._is_asmgcc():
if IS_X86_32:
mc.MOV_sr(4, old_value.value)
mc.MOV_sr(0, css_value.value)
# on X86_64, they are already in the right registers
mc.CALL(imm(self.asm.reacqgil_addr))
- self.restore_result_value_reacq()
+ if not self.result_value_saved_early:
+ self.restore_result_value(save_edx=False)
#
# patch the JE above
offset = mc.get_relative_pos() - je_location
@@ -272,6 +314,9 @@
if restore_edx:
mc.MOV_rs(edx.value, 12) # restore this
#
+ if self.result_value_saved_early:
+ self.restore_result_value(save_edx=True)
+ #
if not we_are_translated(): # for testing: now we can accesss
mc.SUB(ebp, imm(1)) # ebp again
#
@@ -284,11 +329,11 @@
#else:
# for shadowstack, done for us by _reload_frame_if_necessary()
- def save_result_value_reacq(self):
+ def save_result_value(self, save_edx):
"""Overridden in CallBuilder32 and CallBuilder64"""
raise NotImplementedError
- def restore_result_value_reacq(self):
+ def restore_result_value(self, save_edx):
"""Overridden in CallBuilder32 and CallBuilder64"""
raise NotImplementedError
@@ -378,7 +423,7 @@
else:
CallBuilderX86.load_result(self)
- def save_result_value_reacq(self):
+ def save_result_value(self, save_edx):
# Temporarily save the result value into [ESP+8]. We use "+8"
# in order to leave the two initial words free, in case it's needed.
# Also note that in this 32-bit case, a long long return value is
@@ -390,7 +435,8 @@
# a float or a long long return
if self.restype == 'L':
self.mc.MOV_sr(8, eax.value) # long long
- #self.mc.MOV_sr(12, edx.value) -- already done by the caller
+ if save_edx:
+ self.mc.MOV_sr(12, edx.value)
else:
self.mc.FSTPL_s(8) # float return
else:
@@ -401,15 +447,16 @@
assert self.ressize <= WORD
self.mc.MOV_sr(8, eax.value)
- def restore_result_value_reacq(self):
- # Opposite of save_result_value_reacq()
+ def restore_result_value(self, save_edx):
+ # Opposite of save_result_value()
if self.ressize == 0: # void return
return
if self.resloc.is_float():
# a float or a long long return
if self.restype == 'L':
self.mc.MOV_rs(eax.value, 8) # long long
- #self.mc.MOV_rs(edx.value, 12) -- will be done by the caller
+ if save_edx:
+ self.mc.MOV_rs(edx.value, 12)
else:
self.mc.FLDL_s(8) # float return
else:
@@ -534,7 +581,7 @@
else:
CallBuilderX86.load_result(self)
- def save_result_value_reacq(self):
+ def save_result_value(self, save_edx):
# Temporarily save the result value into [ESP].
if self.ressize == 0: # void return
return
@@ -551,8 +598,8 @@
assert self.restype == INT
self.mc.MOV_sr(0, eax.value)
- def restore_result_value_reacq(self):
- # Opposite of save_result_value_reacq()
+ def restore_result_value(self, save_edx):
+ # Opposite of save_result_value()
if self.ressize == 0: # void return
return
#
diff --git a/rpython/jit/backend/x86/rx86.py b/rpython/jit/backend/x86/rx86.py
--- a/rpython/jit/backend/x86/rx86.py
+++ b/rpython/jit/backend/x86/rx86.py
@@ -536,6 +536,7 @@
PUSH_r = insn(rex_nw, register(1), '\x50')
PUSH_b = insn(rex_nw, '\xFF', orbyte(6<<3), stack_bp(1))
+ PUSH_m = insn(rex_nw, '\xFF', orbyte(6<<3), mem_reg_plus_const(1))
PUSH_i8 = insn('\x6A', immediate(1, 'b'))
PUSH_i32 = insn('\x68', immediate(1, 'i'))
def PUSH_i(mc, immed):
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