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libphobos: Fix linker warning and SEGV in core.thread tests. 

The monolithic core/threadasm.S source has been removed, and split into
multiple parts, one for each intended target CPU/OS.

Added .type and .size directives for all asm implementations of
fiber_switchContent and callWithStackShell where they were missing.

libphobos/ChangeLog:

2019-04-25  Iain Buclaw  <ibuclaw@gdcproject.org>

	PR d/90086
	* m4/druntime/cpu.m4 (DRUNTIME_CPU_SOURCES): New macro.
	* configure.ac: Use it.
	* configure: Regenerate.
	* libdruntime/Makefile.am: Add new config sources to
	DRUNTIME_SOURCES_CONFIGURED.
	* libdruntime/Makefile.in: Regenerate.
	* libdruntime/config/aarch64/switchcontext.S: New file.
	* libdruntime/config/arm/switchcontext.S: New file.
	* libdruntime/config/common/threadasm.S: New file.
	* libdruntime/config/mingw/switchcontext.S: New file.
	* libdruntime/config/mips/switchcontext.S: New file.
	* libdruntime/config/powerpc/switchcontext.S: New file.
	* libdruntime/config/powerpc64/callwithstack.S: New file.
	* libdruntime/config/x86/switchcontext.S: New file.
	* libdruntime/core/threadasm.S: Remove.

From-SVN: r270560
This commit is contained in:
Iain Buclaw 2019-04-24 22:46:59 +00:00 committed by Iain Buclaw
parent 7c3e085e44
commit 2493e71815
15 changed files with 1256 additions and 767 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
libphobos/ChangeLog
View File

@ -1,3 +1,22 @@
2019-04-25 Iain Buclaw <ibuclaw@gdcproject.org>
PR d/90086
* m4/druntime/cpu.m4 (DRUNTIME_CPU_SOURCES): New macro.
* configure.ac: Use it.
* configure: Regenerate.
* libdruntime/Makefile.am: Add new config sources to
DRUNTIME_SOURCES_CONFIGURED.
* libdruntime/Makefile.in: Regenerate.
* libdruntime/config/aarch64/switchcontext.S: New file.
* libdruntime/config/arm/switchcontext.S: New file.
* libdruntime/config/common/threadasm.S: New file.
* libdruntime/config/mingw/switchcontext.S: New file.
* libdruntime/config/mips/switchcontext.S: New file.
* libdruntime/config/powerpc/switchcontext.S: New file.
* libdruntime/config/powerpc64/callwithstack.S: New file.
* libdruntime/config/x86/switchcontext.S: New file.
* libdruntime/core/threadasm.S: Remove.
2019-04-24 Iain Buclaw <ibuclaw@gdcproject.org>
PR d/89432

108
libphobos/configure vendored
View File

@ -681,6 +681,18 @@ DRUNTIME_OS_AIX_FALSE
DRUNTIME_OS_AIX_TRUE
DRUNTIME_OS_UNIX_FALSE
DRUNTIME_OS_UNIX_TRUE
DRUNTIME_CPU_X86_FALSE
DRUNTIME_CPU_X86_TRUE
DRUNTIME_CPU_POWERPC64_FALSE
DRUNTIME_CPU_POWERPC64_TRUE
DRUNTIME_CPU_POWERPC_FALSE
DRUNTIME_CPU_POWERPC_TRUE
DRUNTIME_CPU_MIPS_FALSE
DRUNTIME_CPU_MIPS_TRUE
DRUNTIME_CPU_ARM_FALSE
DRUNTIME_CPU_ARM_TRUE
DRUNTIME_CPU_AARCH64_FALSE
DRUNTIME_CPU_AARCH64_TRUE
DRUNTIME_GC_ENABLE_FALSE
DRUNTIME_GC_ENABLE_TRUE
libphobos_srcdir
@ -11623,7 +11635,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11626 "configure"
#line 11638 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -11729,7 +11741,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11732 "configure"
#line 11744 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -14024,6 +14036,74 @@ fi
druntime_target_cpu_parsed=""
case "$target_cpu" in
aarch64*)
druntime_target_cpu_parsed="aarch64"
;;
arm*) druntime_target_cpu_parsed="arm"
;;
mips*) druntime_target_cpu_parsed="mips"
;;
powerpc) druntime_target_cpu_parsed="powerpc"
;;
powerpc64)
druntime_target_cpu_parsed="powerpc64"
;;
i3456786|x86_64)
druntime_target_cpu_parsed="x86"
;;
esac
if test "$druntime_target_cpu_parsed" = "aarch64"; then
DRUNTIME_CPU_AARCH64_TRUE=
DRUNTIME_CPU_AARCH64_FALSE='#'
else
DRUNTIME_CPU_AARCH64_TRUE='#'
DRUNTIME_CPU_AARCH64_FALSE=
fi
if test "$druntime_target_cpu_parsed" = "arm"; then
DRUNTIME_CPU_ARM_TRUE=
DRUNTIME_CPU_ARM_FALSE='#'
else
DRUNTIME_CPU_ARM_TRUE='#'
DRUNTIME_CPU_ARM_FALSE=
fi
if test "$druntime_target_cpu_parsed" = "mips"; then
DRUNTIME_CPU_MIPS_TRUE=
DRUNTIME_CPU_MIPS_FALSE='#'
else
DRUNTIME_CPU_MIPS_TRUE='#'
DRUNTIME_CPU_MIPS_FALSE=
fi
if test "$druntime_target_cpu_parsed" = "powerpc"; then
DRUNTIME_CPU_POWERPC_TRUE=
DRUNTIME_CPU_POWERPC_FALSE='#'
else
DRUNTIME_CPU_POWERPC_TRUE='#'
DRUNTIME_CPU_POWERPC_FALSE=
fi
if test "$druntime_target_cpu_parsed" = "powerpc64"; then
DRUNTIME_CPU_POWERPC64_TRUE=
DRUNTIME_CPU_POWERPC64_FALSE='#'
else
DRUNTIME_CPU_POWERPC64_TRUE='#'
DRUNTIME_CPU_POWERPC64_FALSE=
fi
if test "$druntime_target_cpu_parsed" = "x86"; then
DRUNTIME_CPU_X86_TRUE=
DRUNTIME_CPU_X86_FALSE='#'
else
DRUNTIME_CPU_X86_TRUE='#'
DRUNTIME_CPU_X86_FALSE=
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for target OS" >&5
$as_echo_n "checking for target OS... " >&6; }
if ${druntime_cv_target_os+:} false; then :
@ -15413,6 +15493,30 @@ if test -z "${DRUNTIME_GC_ENABLE_TRUE}" && test -z "${DRUNTIME_GC_ENABLE_FALSE}"
as_fn_error $? "conditional \"DRUNTIME_GC_ENABLE\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${DRUNTIME_CPU_AARCH64_TRUE}" && test -z "${DRUNTIME_CPU_AARCH64_FALSE}"; then
as_fn_error $? "conditional \"DRUNTIME_CPU_AARCH64\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${DRUNTIME_CPU_ARM_TRUE}" && test -z "${DRUNTIME_CPU_ARM_FALSE}"; then
as_fn_error $? "conditional \"DRUNTIME_CPU_ARM\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${DRUNTIME_CPU_MIPS_TRUE}" && test -z "${DRUNTIME_CPU_MIPS_FALSE}"; then
as_fn_error $? "conditional \"DRUNTIME_CPU_MIPS\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${DRUNTIME_CPU_POWERPC_TRUE}" && test -z "${DRUNTIME_CPU_POWERPC_FALSE}"; then
as_fn_error $? "conditional \"DRUNTIME_CPU_POWERPC\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${DRUNTIME_CPU_POWERPC64_TRUE}" && test -z "${DRUNTIME_CPU_POWERPC64_FALSE}"; then
as_fn_error $? "conditional \"DRUNTIME_CPU_POWERPC64\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${DRUNTIME_CPU_X86_TRUE}" && test -z "${DRUNTIME_CPU_X86_FALSE}"; then
as_fn_error $? "conditional \"DRUNTIME_CPU_X86\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${DRUNTIME_OS_UNIX_TRUE}" && test -z "${DRUNTIME_OS_UNIX_FALSE}"; then
as_fn_error $? "conditional \"DRUNTIME_OS_UNIX\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5

1
libphobos/configure.ac
View File

@ -157,6 +157,7 @@ DRUNTIME_CONFIGURE
DRUNTIME_MULTILIB
DRUNTIME_WERROR
DRUNTIME_GC
DRUNTIME_CPU_SOURCES
DRUNTIME_OS_UNIX
DRUNTIME_OS_SOURCES
DRUNTIME_OS_THREAD_MODEL

73
libphobos/libdruntime/Makefile.am
View File

@ -36,43 +36,67 @@ ALL_DRUNTIME_INSTALL_DSOURCES = $(DRUNTIME_DSOURCES) \
$(DRUNTIME_DSOURCES_STDCXX)
# Setup source files depending on configure
ALL_DRUNTIME_COMPILE_DSOURCES = $(DRUNTIME_DSOURCES)
DRUNTIME_SOURCES_CONFIGURED =
# GC sources
if DRUNTIME_GC_ENABLE
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_GC)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_GC)
else
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_GCSTUB)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_GCSTUB)
endif
# OS specific sources
if DRUNTIME_OS_UNIX
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_POSIX)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_POSIX)
endif
if DRUNTIME_OS_DARWIN
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_DARWIN)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_DARWIN)
endif
if DRUNTIME_OS_DRAGONFLYBSD
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_DRAGONFLYBSD)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_DRAGONFLYBSD)
endif
if DRUNTIME_OS_ANDROID
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_BIONIC)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_BIONIC)
endif
if DRUNTIME_OS_FREEBSD
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_FREEBSD)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_FREEBSD)
endif
if DRUNTIME_OS_NETBSD
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_NETBSD)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_NETBSD)
endif
if DRUNTIME_OS_OPENBSD
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_OPENBSD)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_OPENBSD)
endif
if DRUNTIME_OS_LINUX
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_LINUX)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_LINUX)
endif
if DRUNTIME_OS_MINGW
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_WINDOWS)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_WINDOWS)
endif
if DRUNTIME_OS_SOLARIS
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_SOLARIS)
DRUNTIME_SOURCES_CONFIGURED += $(DRUNTIME_DSOURCES_SOLARIS)
endif
# CPU specific sources
if DRUNTIME_CPU_AARCH64
DRUNTIME_SOURCES_CONFIGURED += config/aarch64/switchcontext.S
endif
if DRUNTIME_CPU_ARM
DRUNTIME_SOURCES_CONFIGURED += config/arm/switchcontext.S
endif
if DRUNTIME_CPU_MIPS
DRUNTIME_SOURCES_CONFIGURED += config/mips/switchcontext.S
endif
if DRUNTIME_CPU_POWERPC
DRUNTIME_SOURCES_CONFIGURED += config/powerpc/switchcontext.S
endif
if DRUNTIME_CPU_POWERPC64
DRUNTIME_SOURCES_CONFIGURED += config/powerpc64/callwithstack.S
endif
if DRUNTIME_CPU_X86
if DRUNTIME_OS_MINGW
DRUNTIME_SOURCES_CONFIGURED += config/mingw/switchcontext.S
else
DRUNTIME_SOURCES_CONFIGURED += config/x86/switchcontext.S
endif
endif
# Provide __start_minfo, __stop_minfo if linker doesn't.
@ -89,10 +113,10 @@ gcc/drtend.o: gcc/drtstuff.c
endif
# Generated by configure
ALL_DRUNTIME_COMPILE_DSOURCES += $(DRUNTIME_DSOURCES_GENERATED)
DRUNTIME_DSOURCES_GENERATED = gcc/config.d gcc/libbacktrace.d
ALL_DRUNTIME_SOURCES = $(ALL_DRUNTIME_COMPILE_DSOURCES) $(DRUNTIME_CSOURCES) \
$(DRUNTIME_SSOURCES)
ALL_DRUNTIME_SOURCES = $(DRUNTIME_DSOURCES) $(DRUNTIME_CSOURCES) \
$(DRUNTIME_SOURCES_CONFIGURED) $(DRUNTIME_DSOURCES_GENERATED)
toolexeclib_LTLIBRARIES = libgdruntime.la
libgdruntime_la_SOURCES = $(ALL_DRUNTIME_SOURCES)
@ -114,13 +138,10 @@ install-data-local:
fi ; \
done
DRUNTIME_DSOURCES_GENERATED = gcc/config.d gcc/libbacktrace.d
# Source file definitions. Boring stuff, auto-generated with
# https://gist.github.com/jpf91/8ad1dbc9902d6ad876313f134c6527d1
# Can't use wildcards here:
# https://www.gnu.org/software/automake/manual/html_node/Wildcards.html
DRUNTIME_SSOURCES = core/threadasm.S
DRUNTIME_CSOURCES = core/stdc/errno_.c
@ -141,13 +162,13 @@ DRUNTIME_DSOURCES = core/atomic.d core/attribute.d core/bitop.d \
core/sync/rwmutex.d core/sync/semaphore.d core/thread.d core/time.d \
core/vararg.d gcc/attribute.d gcc/backtrace.d gcc/builtins.d gcc/deh.d \
gcc/sections/android.d gcc/sections/elf_shared.d gcc/sections/osx.d \
gcc/sections/package.d gcc/sections/win32.d \
gcc/sections/win64.d gcc/unwind/arm.d gcc/unwind/arm_common.d \
gcc/unwind/c6x.d gcc/unwind/generic.d gcc/unwind/package.d \
gcc/unwind/pe.d object.d rt/aApply.d rt/aApplyR.d rt/aaA.d rt/adi.d \
rt/arrayassign.d rt/arraycast.d rt/arraycat.d rt/cast_.d rt/config.d \
rt/critical_.d rt/deh.d rt/dmain2.d rt/invariant.d rt/lifetime.d \
rt/memory.d rt/minfo.d rt/monitor_.d rt/obj.d rt/qsort.d rt/sections.d \
gcc/sections/package.d gcc/sections/win32.d gcc/sections/win64.d \
gcc/unwind/arm.d gcc/unwind/arm_common.d gcc/unwind/c6x.d \
gcc/unwind/generic.d gcc/unwind/package.d gcc/unwind/pe.d object.d \
rt/aApply.d rt/aApplyR.d rt/aaA.d rt/adi.d rt/arrayassign.d \
rt/arraycast.d rt/arraycat.d rt/cast_.d rt/config.d rt/critical_.d \
rt/deh.d rt/dmain2.d rt/invariant.d rt/lifetime.d rt/memory.d \
rt/minfo.d rt/monitor_.d rt/obj.d rt/qsort.d rt/sections.d \
rt/switch_.d rt/tlsgc.d rt/typeinfo/ti_Acdouble.d \
rt/typeinfo/ti_Acfloat.d rt/typeinfo/ti_Acreal.d \
rt/typeinfo/ti_Adouble.d rt/typeinfo/ti_Afloat.d rt/typeinfo/ti_Ag.d \

213
libphobos/libdruntime/Makefile.in
View File

@ -107,6 +107,7 @@ POST_UNINSTALL = :
build_triplet = @build@
host_triplet = @host@
target_triplet = @target@
# GC sources
@DRUNTIME_GC_ENABLE_TRUE@am__append_1 = $(DRUNTIME_DSOURCES_GC)
@DRUNTIME_GC_ENABLE_FALSE@am__append_2 = $(DRUNTIME_DSOURCES_GCSTUB)
@ -121,6 +122,14 @@ target_triplet = @target@
@DRUNTIME_OS_LINUX_TRUE@am__append_10 = $(DRUNTIME_DSOURCES_LINUX)
@DRUNTIME_OS_MINGW_TRUE@am__append_11 = $(DRUNTIME_DSOURCES_WINDOWS)
@DRUNTIME_OS_SOLARIS_TRUE@am__append_12 = $(DRUNTIME_DSOURCES_SOLARIS)
# CPU specific sources
@DRUNTIME_CPU_AARCH64_TRUE@am__append_13 = config/aarch64/switchcontext.S
@DRUNTIME_CPU_ARM_TRUE@am__append_14 = config/arm/switchcontext.S
@DRUNTIME_CPU_MIPS_TRUE@am__append_15 = config/mips/switchcontext.S
@DRUNTIME_CPU_POWERPC_TRUE@am__append_16 = config/powerpc/switchcontext.S
@DRUNTIME_CPU_POWERPC64_TRUE@am__append_17 = config/powerpc64/callwithstack.S
@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_TRUE@am__append_18 = config/mingw/switchcontext.S
@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_FALSE@am__append_19 = config/x86/switchcontext.S
subdir = libdruntime
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
@ -228,13 +237,14 @@ am__objects_1 = core/atomic.lo core/attribute.lo core/bitop.lo \
rt/util/container/common.lo rt/util/container/hashtab.lo \
rt/util/container/treap.lo rt/util/random.lo \
rt/util/typeinfo.lo rt/util/utf.lo
am__objects_2 = gc/bits.lo gc/config.lo gc/gcinterface.lo \
am__objects_2 = core/stdc/libgdruntime_la-errno_.lo
am__objects_3 = gc/bits.lo gc/config.lo gc/gcinterface.lo \
gc/impl/conservative/gc.lo gc/impl/manual/gc.lo gc/os.lo \
gc/pooltable.lo gc/proxy.lo
@DRUNTIME_GC_ENABLE_TRUE@am__objects_3 = $(am__objects_2)
am__objects_4 = gcstub/gc.lo
@DRUNTIME_GC_ENABLE_FALSE@am__objects_5 = $(am__objects_4)
am__objects_6 = core/sys/posix/aio.lo core/sys/posix/arpa/inet.lo \
@DRUNTIME_GC_ENABLE_TRUE@am__objects_4 = $(am__objects_3)
am__objects_5 = gcstub/gc.lo
@DRUNTIME_GC_ENABLE_FALSE@am__objects_6 = $(am__objects_5)
am__objects_7 = core/sys/posix/aio.lo core/sys/posix/arpa/inet.lo \
core/sys/posix/config.lo core/sys/posix/dirent.lo \
core/sys/posix/dlfcn.lo core/sys/posix/fcntl.lo \
core/sys/posix/grp.lo core/sys/posix/iconv.lo \
@ -259,8 +269,8 @@ am__objects_6 = core/sys/posix/aio.lo core/sys/posix/arpa/inet.lo \
core/sys/posix/syslog.lo core/sys/posix/termios.lo \
core/sys/posix/time.lo core/sys/posix/ucontext.lo \
core/sys/posix/unistd.lo core/sys/posix/utime.lo
@DRUNTIME_OS_UNIX_TRUE@am__objects_7 = $(am__objects_6)
am__objects_8 = core/sys/darwin/crt_externs.lo \
@DRUNTIME_OS_UNIX_TRUE@am__objects_8 = $(am__objects_7)
am__objects_9 = core/sys/darwin/crt_externs.lo \
core/sys/darwin/dlfcn.lo core/sys/darwin/execinfo.lo \
core/sys/darwin/mach/dyld.lo core/sys/darwin/mach/getsect.lo \
core/sys/darwin/mach/kern_return.lo \
@ -270,8 +280,8 @@ am__objects_8 = core/sys/darwin/crt_externs.lo \
core/sys/darwin/netinet/in_.lo core/sys/darwin/pthread.lo \
core/sys/darwin/sys/cdefs.lo core/sys/darwin/sys/event.lo \
core/sys/darwin/sys/mman.lo
@DRUNTIME_OS_DARWIN_TRUE@am__objects_9 = $(am__objects_8)
am__objects_10 = core/sys/dragonflybsd/dlfcn.lo \
@DRUNTIME_OS_DARWIN_TRUE@am__objects_10 = $(am__objects_9)
am__objects_11 = core/sys/dragonflybsd/dlfcn.lo \
core/sys/dragonflybsd/execinfo.lo \
core/sys/dragonflybsd/netinet/in_.lo \
core/sys/dragonflybsd/pthread_np.lo \
@ -286,10 +296,10 @@ am__objects_10 = core/sys/dragonflybsd/dlfcn.lo \
core/sys/dragonflybsd/sys/link_elf.lo \
core/sys/dragonflybsd/sys/mman.lo \
core/sys/dragonflybsd/time.lo
@DRUNTIME_OS_DRAGONFLYBSD_TRUE@am__objects_11 = $(am__objects_10)
am__objects_12 = core/sys/bionic/fcntl.lo core/sys/bionic/unistd.lo
@DRUNTIME_OS_ANDROID_TRUE@am__objects_13 = $(am__objects_12)
am__objects_14 = core/sys/freebsd/dlfcn.lo \
@DRUNTIME_OS_DRAGONFLYBSD_TRUE@am__objects_12 = $(am__objects_11)
am__objects_13 = core/sys/bionic/fcntl.lo core/sys/bionic/unistd.lo
@DRUNTIME_OS_ANDROID_TRUE@am__objects_14 = $(am__objects_13)
am__objects_15 = core/sys/freebsd/dlfcn.lo \
core/sys/freebsd/execinfo.lo core/sys/freebsd/netinet/in_.lo \
core/sys/freebsd/pthread_np.lo core/sys/freebsd/sys/_bitset.lo \
core/sys/freebsd/sys/_cpuset.lo core/sys/freebsd/sys/cdefs.lo \
@ -299,16 +309,16 @@ am__objects_14 = core/sys/freebsd/dlfcn.lo \
core/sys/freebsd/sys/event.lo core/sys/freebsd/sys/link_elf.lo \
core/sys/freebsd/sys/mman.lo core/sys/freebsd/sys/mount.lo \
core/sys/freebsd/time.lo core/sys/freebsd/unistd.lo
@DRUNTIME_OS_FREEBSD_TRUE@am__objects_15 = $(am__objects_14)
am__objects_16 = core/sys/netbsd/dlfcn.lo core/sys/netbsd/execinfo.lo \
@DRUNTIME_OS_FREEBSD_TRUE@am__objects_16 = $(am__objects_15)
am__objects_17 = core/sys/netbsd/dlfcn.lo core/sys/netbsd/execinfo.lo \
core/sys/netbsd/sys/elf.lo core/sys/netbsd/sys/elf32.lo \
core/sys/netbsd/sys/elf64.lo core/sys/netbsd/sys/elf_common.lo \
core/sys/netbsd/sys/event.lo core/sys/netbsd/sys/link_elf.lo \
core/sys/netbsd/sys/mman.lo core/sys/netbsd/time.lo
@DRUNTIME_OS_NETBSD_TRUE@am__objects_17 = $(am__objects_16)
am__objects_18 = core/sys/openbsd/dlfcn.lo
@DRUNTIME_OS_OPENBSD_TRUE@am__objects_19 = $(am__objects_18)
am__objects_20 = core/sys/linux/config.lo core/sys/linux/dlfcn.lo \
@DRUNTIME_OS_NETBSD_TRUE@am__objects_18 = $(am__objects_17)
am__objects_19 = core/sys/openbsd/dlfcn.lo
@DRUNTIME_OS_OPENBSD_TRUE@am__objects_20 = $(am__objects_19)
am__objects_21 = core/sys/linux/config.lo core/sys/linux/dlfcn.lo \
core/sys/linux/elf.lo core/sys/linux/epoll.lo \
core/sys/linux/errno.lo core/sys/linux/execinfo.lo \
core/sys/linux/fcntl.lo core/sys/linux/ifaddrs.lo \
@ -323,8 +333,8 @@ am__objects_20 = core/sys/linux/config.lo core/sys/linux/dlfcn.lo \
core/sys/linux/sys/xattr.lo core/sys/linux/termios.lo \
core/sys/linux/time.lo core/sys/linux/timerfd.lo \
core/sys/linux/tipc.lo core/sys/linux/unistd.lo
@DRUNTIME_OS_LINUX_TRUE@am__objects_21 = $(am__objects_20)
am__objects_22 = core/sys/windows/accctrl.lo \
@DRUNTIME_OS_LINUX_TRUE@am__objects_22 = $(am__objects_21)
am__objects_23 = core/sys/windows/accctrl.lo \
core/sys/windows/aclapi.lo core/sys/windows/aclui.lo \
core/sys/windows/basetsd.lo core/sys/windows/basetyps.lo \
core/sys/windows/cderr.lo core/sys/windows/cguid.lo \
@ -407,8 +417,8 @@ am__objects_22 = core/sys/windows/accctrl.lo \
core/sys/windows/winspool.lo core/sys/windows/winsvc.lo \
core/sys/windows/winuser.lo core/sys/windows/winver.lo \
core/sys/windows/wtsapi32.lo core/sys/windows/wtypes.lo
@DRUNTIME_OS_MINGW_TRUE@am__objects_23 = $(am__objects_22)
am__objects_24 = core/sys/solaris/dlfcn.lo core/sys/solaris/elf.lo \
@DRUNTIME_OS_MINGW_TRUE@am__objects_24 = $(am__objects_23)
am__objects_25 = core/sys/solaris/dlfcn.lo core/sys/solaris/elf.lo \
core/sys/solaris/execinfo.lo core/sys/solaris/libelf.lo \
core/sys/solaris/link.lo core/sys/solaris/sys/elf.lo \
core/sys/solaris/sys/elf_386.lo \
@ -419,17 +429,25 @@ am__objects_24 = core/sys/solaris/dlfcn.lo core/sys/solaris/elf.lo \
core/sys/solaris/sys/priocntl.lo \
core/sys/solaris/sys/procset.lo core/sys/solaris/sys/types.lo \
core/sys/solaris/time.lo
@DRUNTIME_OS_SOLARIS_TRUE@am__objects_25 = $(am__objects_24)
am__objects_26 = gcc/config.lo gcc/libbacktrace.lo
am__objects_27 = $(am__objects_1) $(am__objects_3) $(am__objects_5) \
$(am__objects_7) $(am__objects_9) $(am__objects_11) \
$(am__objects_13) $(am__objects_15) $(am__objects_17) \
$(am__objects_19) $(am__objects_21) $(am__objects_23) \
$(am__objects_25) $(am__objects_26)
am__objects_28 = core/stdc/libgdruntime_la-errno_.lo
am__objects_29 = core/libgdruntime_la-threadasm.lo
am__objects_30 = $(am__objects_27) $(am__objects_28) $(am__objects_29)
am_libgdruntime_la_OBJECTS = $(am__objects_30)
@DRUNTIME_OS_SOLARIS_TRUE@am__objects_26 = $(am__objects_25)
@DRUNTIME_CPU_AARCH64_TRUE@am__objects_27 = config/aarch64/libgdruntime_la-switchcontext.lo
@DRUNTIME_CPU_ARM_TRUE@am__objects_28 = config/arm/libgdruntime_la-switchcontext.lo
@DRUNTIME_CPU_MIPS_TRUE@am__objects_29 = config/mips/libgdruntime_la-switchcontext.lo
@DRUNTIME_CPU_POWERPC_TRUE@am__objects_30 = config/powerpc/libgdruntime_la-switchcontext.lo
@DRUNTIME_CPU_POWERPC64_TRUE@am__objects_31 = config/powerpc64/libgdruntime_la-callwithstack.lo
@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_TRUE@am__objects_32 = config/mingw/libgdruntime_la-switchcontext.lo
@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_FALSE@am__objects_33 = config/x86/libgdruntime_la-switchcontext.lo
am__objects_34 = $(am__objects_4) $(am__objects_6) $(am__objects_8) \
$(am__objects_10) $(am__objects_12) $(am__objects_14) \
$(am__objects_16) $(am__objects_18) $(am__objects_20) \
$(am__objects_22) $(am__objects_24) $(am__objects_26) \
$(am__objects_27) $(am__objects_28) $(am__objects_29) \
$(am__objects_30) $(am__objects_31) $(am__objects_32) \
$(am__objects_33)
am__objects_35 = gcc/config.lo gcc/libbacktrace.lo
am__objects_36 = $(am__objects_1) $(am__objects_2) $(am__objects_34) \
$(am__objects_35)
am_libgdruntime_la_OBJECTS = $(am__objects_36)
libgdruntime_la_OBJECTS = $(am_libgdruntime_la_OBJECTS)
AM_V_P = $(am__v_P_@AM_V@)
am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
@ -692,20 +710,22 @@ ALL_DRUNTIME_INSTALL_DSOURCES = $(DRUNTIME_DSOURCES) \
# Setup source files depending on configure
# Generated by configure
ALL_DRUNTIME_COMPILE_DSOURCES = $(DRUNTIME_DSOURCES) $(am__append_1) \
$(am__append_2) $(am__append_3) $(am__append_4) \
$(am__append_5) $(am__append_6) $(am__append_7) \
$(am__append_8) $(am__append_9) $(am__append_10) \
$(am__append_11) $(am__append_12) \
$(DRUNTIME_DSOURCES_GENERATED)
DRUNTIME_SOURCES_CONFIGURED = $(am__append_1) $(am__append_2) \
$(am__append_3) $(am__append_4) $(am__append_5) \
$(am__append_6) $(am__append_7) $(am__append_8) \
$(am__append_9) $(am__append_10) $(am__append_11) \
$(am__append_12) $(am__append_13) $(am__append_14) \
$(am__append_15) $(am__append_16) $(am__append_17) \
$(am__append_18) $(am__append_19)
# Provide __start_minfo, __stop_minfo if linker doesn't.
@DRUNTIME_OS_MINFO_BRACKETING_FALSE@DRTSTUFF = gcc/drtbegin.o gcc/drtend.o
@DRUNTIME_OS_MINFO_BRACKETING_FALSE@toolexeclib_DATA = $(DRTSTUFF)
ALL_DRUNTIME_SOURCES = $(ALL_DRUNTIME_COMPILE_DSOURCES) $(DRUNTIME_CSOURCES) \
$(DRUNTIME_SSOURCES)
# Generated by configure
DRUNTIME_DSOURCES_GENERATED = gcc/config.d gcc/libbacktrace.d
ALL_DRUNTIME_SOURCES = $(DRUNTIME_DSOURCES) $(DRUNTIME_CSOURCES) \
$(DRUNTIME_SOURCES_CONFIGURED) $(DRUNTIME_DSOURCES_GENERATED)
toolexeclib_LTLIBRARIES = libgdruntime.la
libgdruntime_la_SOURCES = $(ALL_DRUNTIME_SOURCES)
@ -715,12 +735,11 @@ libgdruntime_la_LDFLAGS = -Wc,-nophoboslib,-dstartfiles,-B../src,-Bgcc \
libgdruntime_la_LIBADD = $(LIBATOMIC) $(LIBBACKTRACE)
libgdruntime_la_DEPENDENCIES = $(DRTSTUFF)
DRUNTIME_DSOURCES_GENERATED = gcc/config.d gcc/libbacktrace.d
# Source file definitions. Boring stuff, auto-generated with
# https://gist.github.com/jpf91/8ad1dbc9902d6ad876313f134c6527d1
# Can't use wildcards here:
# https://www.gnu.org/software/automake/manual/html_node/Wildcards.html
DRUNTIME_SSOURCES = core/threadasm.S
DRUNTIME_CSOURCES = core/stdc/errno_.c
DRUNTIME_DSOURCES = core/atomic.d core/attribute.d core/bitop.d \
core/checkedint.d core/cpuid.d core/demangle.d core/exception.d \
@ -739,13 +758,13 @@ DRUNTIME_DSOURCES = core/atomic.d core/attribute.d core/bitop.d \
core/sync/rwmutex.d core/sync/semaphore.d core/thread.d core/time.d \
core/vararg.d gcc/attribute.d gcc/backtrace.d gcc/builtins.d gcc/deh.d \
gcc/sections/android.d gcc/sections/elf_shared.d gcc/sections/osx.d \
gcc/sections/package.d gcc/sections/win32.d \
gcc/sections/win64.d gcc/unwind/arm.d gcc/unwind/arm_common.d \
gcc/unwind/c6x.d gcc/unwind/generic.d gcc/unwind/package.d \
gcc/unwind/pe.d object.d rt/aApply.d rt/aApplyR.d rt/aaA.d rt/adi.d \
rt/arrayassign.d rt/arraycast.d rt/arraycat.d rt/cast_.d rt/config.d \
rt/critical_.d rt/deh.d rt/dmain2.d rt/invariant.d rt/lifetime.d \
rt/memory.d rt/minfo.d rt/monitor_.d rt/obj.d rt/qsort.d rt/sections.d \
gcc/sections/package.d gcc/sections/win32.d gcc/sections/win64.d \
gcc/unwind/arm.d gcc/unwind/arm_common.d gcc/unwind/c6x.d \
gcc/unwind/generic.d gcc/unwind/package.d gcc/unwind/pe.d object.d \
rt/aApply.d rt/aApplyR.d rt/aaA.d rt/adi.d rt/arrayassign.d \
rt/arraycast.d rt/arraycat.d rt/cast_.d rt/config.d rt/critical_.d \
rt/deh.d rt/dmain2.d rt/invariant.d rt/lifetime.d rt/memory.d \
rt/minfo.d rt/monitor_.d rt/obj.d rt/qsort.d rt/sections.d \
rt/switch_.d rt/tlsgc.d rt/typeinfo/ti_Acdouble.d \
rt/typeinfo/ti_Acfloat.d rt/typeinfo/ti_Acreal.d \
rt/typeinfo/ti_Adouble.d rt/typeinfo/ti_Afloat.d rt/typeinfo/ti_Ag.d \
@ -1182,6 +1201,7 @@ rt/util/container/treap.lo: rt/util/container/$(am__dirstamp)
rt/util/random.lo: rt/util/$(am__dirstamp)
rt/util/typeinfo.lo: rt/util/$(am__dirstamp)
rt/util/utf.lo: rt/util/$(am__dirstamp)
core/stdc/libgdruntime_la-errno_.lo: core/stdc/$(am__dirstamp)
gc/$(am__dirstamp):
@$(MKDIR_P) gc
@: > gc/$(am__dirstamp)
@ -1629,16 +1649,63 @@ core/sys/solaris/sys/priocntl.lo: \
core/sys/solaris/sys/procset.lo: core/sys/solaris/sys/$(am__dirstamp)
core/sys/solaris/sys/types.lo: core/sys/solaris/sys/$(am__dirstamp)
core/sys/solaris/time.lo: core/sys/solaris/$(am__dirstamp)
config/aarch64/$(am__dirstamp):
@$(MKDIR_P) config/aarch64
@: > config/aarch64/$(am__dirstamp)
config/aarch64/libgdruntime_la-switchcontext.lo: \
config/aarch64/$(am__dirstamp)
config/arm/$(am__dirstamp):
@$(MKDIR_P) config/arm
@: > config/arm/$(am__dirstamp)
config/arm/libgdruntime_la-switchcontext.lo: \
config/arm/$(am__dirstamp)
config/mips/$(am__dirstamp):
@$(MKDIR_P) config/mips
@: > config/mips/$(am__dirstamp)
config/mips/libgdruntime_la-switchcontext.lo: \
config/mips/$(am__dirstamp)
config/powerpc/$(am__dirstamp):
@$(MKDIR_P) config/powerpc
@: > config/powerpc/$(am__dirstamp)
config/powerpc/libgdruntime_la-switchcontext.lo: \
config/powerpc/$(am__dirstamp)
config/powerpc64/$(am__dirstamp):
@$(MKDIR_P) config/powerpc64
@: > config/powerpc64/$(am__dirstamp)
config/powerpc64/libgdruntime_la-callwithstack.lo: \
config/powerpc64/$(am__dirstamp)
config/mingw/$(am__dirstamp):
@$(MKDIR_P) config/mingw
@: > config/mingw/$(am__dirstamp)
config/mingw/libgdruntime_la-switchcontext.lo: \
config/mingw/$(am__dirstamp)
config/x86/$(am__dirstamp):
@$(MKDIR_P) config/x86
@: > config/x86/$(am__dirstamp)
config/x86/libgdruntime_la-switchcontext.lo: \
config/x86/$(am__dirstamp)
gcc/config.lo: gcc/$(am__dirstamp)
gcc/libbacktrace.lo: gcc/$(am__dirstamp)
core/stdc/libgdruntime_la-errno_.lo: core/stdc/$(am__dirstamp)
core/libgdruntime_la-threadasm.lo: core/$(am__dirstamp)
libgdruntime.la: $(libgdruntime_la_OBJECTS) $(libgdruntime_la_DEPENDENCIES) $(EXTRA_libgdruntime_la_DEPENDENCIES)
$(AM_V_GEN)$(libgdruntime_la_LINK) -rpath $(toolexeclibdir) $(libgdruntime_la_OBJECTS) $(libgdruntime_la_LIBADD) $(LIBS)
mostlyclean-compile:
-rm -f *.$(OBJEXT)
-rm -f config/aarch64/*.$(OBJEXT)
-rm -f config/aarch64/*.lo
-rm -f config/arm/*.$(OBJEXT)
-rm -f config/arm/*.lo
-rm -f config/mingw/*.$(OBJEXT)
-rm -f config/mingw/*.lo
-rm -f config/mips/*.$(OBJEXT)
-rm -f config/mips/*.lo
-rm -f config/powerpc/*.$(OBJEXT)
-rm -f config/powerpc/*.lo
-rm -f config/powerpc64/*.$(OBJEXT)
-rm -f config/powerpc64/*.lo
-rm -f config/x86/*.$(OBJEXT)
-rm -f config/x86/*.lo
-rm -f core/*.$(OBJEXT)
-rm -f core/*.lo
-rm -f core/internal/*.$(OBJEXT)
@ -1734,8 +1801,26 @@ distclean-compile:
.S.lo:
$(AM_V_CPPAS)$(LTCPPASCOMPILE) -c -o $@ $<
core/libgdruntime_la-threadasm.lo: core/threadasm.S
$(AM_V_CPPAS)$(LIBTOOL) $(AM_V_lt) $(libgdruntime_la_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS) -c -o core/libgdruntime_la-threadasm.lo `test -f 'core/threadasm.S' || echo '$(srcdir)/'`core/threadasm.S
config/aarch64/libgdruntime_la-switchcontext.lo: config/aarch64/switchcontext.S
$(AM_V_CPPAS)$(LIBTOOL) $(AM_V_lt) $(libgdruntime_la_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS) -c -o config/aarch64/libgdruntime_la-switchcontext.lo `test -f 'config/aarch64/switchcontext.S' || echo '$(srcdir)/'`config/aarch64/switchcontext.S
config/arm/libgdruntime_la-switchcontext.lo: config/arm/switchcontext.S
$(AM_V_CPPAS)$(LIBTOOL) $(AM_V_lt) $(libgdruntime_la_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS) -c -o config/arm/libgdruntime_la-switchcontext.lo `test -f 'config/arm/switchcontext.S' || echo '$(srcdir)/'`config/arm/switchcontext.S
config/mips/libgdruntime_la-switchcontext.lo: config/mips/switchcontext.S
$(AM_V_CPPAS)$(LIBTOOL) $(AM_V_lt) $(libgdruntime_la_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS) -c -o config/mips/libgdruntime_la-switchcontext.lo `test -f 'config/mips/switchcontext.S' || echo '$(srcdir)/'`config/mips/switchcontext.S
config/powerpc/libgdruntime_la-switchcontext.lo: config/powerpc/switchcontext.S
$(AM_V_CPPAS)$(LIBTOOL) $(AM_V_lt) $(libgdruntime_la_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS) -c -o config/powerpc/libgdruntime_la-switchcontext.lo `test -f 'config/powerpc/switchcontext.S' || echo '$(srcdir)/'`config/powerpc/switchcontext.S
config/powerpc64/libgdruntime_la-callwithstack.lo: config/powerpc64/callwithstack.S
$(AM_V_CPPAS)$(LIBTOOL) $(AM_V_lt) $(libgdruntime_la_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS) -c -o config/powerpc64/libgdruntime_la-callwithstack.lo `test -f 'config/powerpc64/callwithstack.S' || echo '$(srcdir)/'`config/powerpc64/callwithstack.S
config/mingw/libgdruntime_la-switchcontext.lo: config/mingw/switchcontext.S
$(AM_V_CPPAS)$(LIBTOOL) $(AM_V_lt) $(libgdruntime_la_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS) -c -o config/mingw/libgdruntime_la-switchcontext.lo `test -f 'config/mingw/switchcontext.S' || echo '$(srcdir)/'`config/mingw/switchcontext.S
config/x86/libgdruntime_la-switchcontext.lo: config/x86/switchcontext.S
$(AM_V_CPPAS)$(LIBTOOL) $(AM_V_lt) $(libgdruntime_la_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CCASFLAGS) $(CCASFLAGS) -c -o config/x86/libgdruntime_la-switchcontext.lo `test -f 'config/x86/switchcontext.S' || echo '$(srcdir)/'`config/x86/switchcontext.S
.c.o:
$(AM_V_CC)$(COMPILE) -c -o $@ $<
@ -1754,6 +1839,13 @@ mostlyclean-libtool:
clean-libtool:
-rm -rf .libs _libs
-rm -rf config/aarch64/.libs config/aarch64/_libs
-rm -rf config/arm/.libs config/arm/_libs
-rm -rf config/mingw/.libs config/mingw/_libs
-rm -rf config/mips/.libs config/mips/_libs
-rm -rf config/powerpc/.libs config/powerpc/_libs
-rm -rf config/powerpc64/.libs config/powerpc64/_libs
-rm -rf config/x86/.libs config/x86/_libs
-rm -rf core/.libs core/_libs
-rm -rf core/internal/.libs core/internal/_libs
-rm -rf core/stdc/.libs core/stdc/_libs
@ -1901,6 +1993,13 @@ clean-generic:
distclean-generic:
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
-rm -f config/aarch64/$(am__dirstamp)
-rm -f config/arm/$(am__dirstamp)
-rm -f config/mingw/$(am__dirstamp)
-rm -f config/mips/$(am__dirstamp)
-rm -f config/powerpc/$(am__dirstamp)
-rm -f config/powerpc64/$(am__dirstamp)
-rm -f config/x86/$(am__dirstamp)
-rm -f core/$(am__dirstamp)
-rm -f core/internal/$(am__dirstamp)
-rm -f core/stdc/$(am__dirstamp)

103
libphobos/libdruntime/config/aarch64/switchcontext.S Normal file
View File

@ -0,0 +1,103 @@
/* AArch64 support code for fibers and multithreading.
Copyright (C) 2019 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "../common/threadasm.S"
/**
* preserve/restore AAPCS64 registers
* x19-x28 5.1.1 64-bit callee saved
* x29 fp, or possibly callee saved reg - depends on platform choice 5.2.3)
* x30 lr
* d8-d15 5.1.2 says callee only must save bottom 64-bits (the "d" regs)
*
* saved regs on stack will look like:
* 19: x19
* 18: x20
* ...
* 10: x28
* 9: x29 (fp) <-- oldp / *newp save stack top
* 8: x30 (lr)
* 7: d8
* ...
* 0: d15 <-- sp
*/
.text
.global CSYM(fiber_switchContext)
.type CSYM(fiber_switchContext), %function
.align 4
CSYM(fiber_switchContext):
.cfi_startproc
stp d15, d14, [sp, #-20*8]!
stp d13, d12, [sp, #2*8]
stp d11, d10, [sp, #4*8]
stp d9, d8, [sp, #6*8]
stp x30, x29, [sp, #8*8] // lr, fp
stp x28, x27, [sp, #10*8]
stp x26, x25, [sp, #12*8]
stp x24, x23, [sp, #14*8]
stp x22, x21, [sp, #16*8]
stp x20, x19, [sp, #18*8]
// oldp is set above saved lr (x30) to hide it and float regs
// from GC
add x19, sp, #9*8
str x19, [x0] // *oldp tstack
sub sp, x1, #9*8 // switch to newp sp
ldp x20, x19, [sp, #18*8]
ldp x22, x21, [sp, #16*8]
ldp x24, x23, [sp, #14*8]
ldp x26, x25, [sp, #12*8]
ldp x28, x27, [sp, #10*8]
ldp x30, x29, [sp, #8*8] // lr, fp
ldp d9, d8, [sp, #6*8]
ldp d11, d10, [sp, #4*8]
ldp d13, d12, [sp, #2*8]
ldp d15, d14, [sp], #20*8
ret
.cfi_endproc
.size CSYM(fiber_switchContext),.-CSYM(fiber_switchContext)
/**
* When generating any kind of backtrace (gdb, exception handling) for
* a function called in a Fiber, we need to tell the unwinder to stop
* at our Fiber main entry point, i.e. we need to mark the bottom of
* the call stack. This can be done by clearing the link register lr
* prior to calling fiber_entryPoint (i.e. in fiber_switchContext) or
* using a .cfi_undefined directive for the link register in the
* Fiber entry point. cfi_undefined seems to yield better results in gdb.
* Unfortunately we can't place it into fiber_entryPoint using inline
* asm, so we use this trampoline instead.
*/
.text
.global CSYM(fiber_trampoline)
.p2align 2
.type CSYM(fiber_trampoline), %function
CSYM(fiber_trampoline):
.cfi_startproc
.cfi_undefined x30
// fiber_entryPoint never returns
bl CSYM(fiber_entryPoint)
.cfi_endproc
.size CSYM(fiber_trampoline),.-CSYM(fiber_trampoline)

118
libphobos/libdruntime/config/arm/switchcontext.S Normal file
View File

@ -0,0 +1,118 @@
/* ARM support code for fibers and multithreading.
Copyright (C) 2019 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "../common/threadasm.S"
#if defined(__ARM_EABI__)
/**
* Performs a context switch.
*
* Parameters:
* r0 - void** - ptr to old stack pointer
* r1 - void* - new stack pointer
*
* ARM EABI registers:
* r0-r3 : argument/scratch registers
* r4-r10 : callee-save registers
* r11 : frame pointer (or a callee save register if fp isn't needed)
* r12 =ip : inter procedure register. We can treat it like any other scratch
* register
* r13 =sp : stack pointer
* r14 =lr : link register, it contains the return address (belonging to the
* function which called us)
* r15 =pc : program counter
*
* For floating point registers:
* According to AAPCS (version 2.09, section 5.1.2) only the d8-d15 registers
* need to be preserved across method calls. This applies to all ARM FPU
* variants, whether they have 16 or 32 double registers NEON support or not,
* half-float support or not and so on does not matter.
*
* Note: If this file was compiled with -mfloat-abi=soft but the code runs on a
* softfp system with fpu the d8-d15 registers won't be saved (we do not know
* that the system has got a fpu in that case) but the registers might actually
* be used by other code if it was compiled with -mfloat-abi=softfp.
*
* Interworking is only supported on ARMv5+, not on ARM v4T as ARM v4t requires
* special stubs when changing from thumb to arm mode or the other way round.
*/
.text
#if defined(__ARM_PCS_VFP) || (defined(__ARM_PCS) && !defined(__SOFTFP__))
.fpu vfp
#endif
.global CSYM(fiber_switchContext)
.type CSYM(fiber_switchContext), %function
.align 4
CSYM(fiber_switchContext):
.cfi_sections .debug_frame
.cfi_startproc
.fnstart
push {r4-r11}
// update the oldp pointer. Link register and floating point registers
// stored later to prevent the GC from scanning them.
str sp, [r0]
// push r0 (or any other register) as well to keep stack 8byte aligned
push {r0, lr}
// ARM_HardFloat || ARM_SoftFP
#if defined(__ARM_PCS_VFP) || (defined(__ARM_PCS) && !defined(__SOFTFP__))
vpush {d8-d15}
// now switch over to the new stack.
// Need to subtract (8*8[d8-d15]+2*4[r0, lr]) to position stack pointer
// below the last saved register. Remember we saved the SP before pushing
// [r0, lr, d8-d15].
sub sp, r1, #72
vpop {d8-d15}
#else
sub sp, r1, #8
#endif
// we don't really care about r0, we only used that for padding.
// r1 is now what used to be in the link register when saving.
pop {r0, r1, r4-r11}
/**
* The link register for the initial jump to fiber_entryPoint must be zero:
* The jump actually looks like a normal method call as we jump to the
* start of the fiber_entryPoint function. Although fiber_entryPoint never
* returns and therefore never accesses lr, it saves lr to the stack.
* ARM unwinding will then look at the stack, find lr and think that
* fiber_entryPoint was called by the function in lr! So if we have some
* address in lr the unwinder will try to continue stack unwinding,
* although it's already at the stack base and crash.
* In all other cases the content of lr doesn't matter.
* Note: If we simply loaded into lr above and then moved lr into pc, the
* initial method call to fiber_entryPoint would look as if it was called
* from fiber_entryPoint itself, as the fiber_entryPoint address is in lr
* on the initial context switch.
*/
mov lr, #0
// return by writing lr into pc
mov pc, r1
.fnend
.cfi_endproc
.size CSYM(fiber_switchContext),.-CSYM(fiber_switchContext)
#endif

43
libphobos/libdruntime/config/common/threadasm.S Normal file
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/* Support code for fibers and multithreading.
Copyright (C) 2019 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#if (__linux__ || __FreeBSD__ || __NetBSD__ || __DragonFly__) && __ELF__
/*
* Mark the resulting object file as not requiring execution permissions on
* stack memory. The absence of this section would mark the whole resulting
* library as requiring an executable stack, making it impossible to
* dynamically load druntime on several Linux platforms where this is
* forbidden due to security policies.
*/
.section .note.GNU-stack,"",%progbits
#endif
/* Let preprocessor tell us if C symbols have a prefix: __USER_LABEL_PREFIX__ */
#ifdef __USER_LABEL_PREFIX__
#define __CONCAT2(a, b) a ## b
#define __CONCAT(a, b) __CONCAT2(a, b)
#define CSYM(name) __CONCAT(__USER_LABEL_PREFIX__, name)
#else
#define CSYM(name) name
#endif

109
libphobos/libdruntime/config/mingw/switchcontext.S Normal file
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/* Windows i386 support code for fibers and multithreading.
Copyright (C) 2019 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "../common/threadasm.S"
#if defined(__x86_64__)
.text
.globl CSYM(fiber_switchContext)
.type CSYM(fiber_switchContext), @function
.align 16
CSYM(fiber_switchContext):
.cfi_startproc
pushq %RBP;
movq %RSP, %RBP;
pushq %RBX;
pushq %R12;
pushq %R13;
pushq %R14;
pushq %R15;
pushq %GS:0;
pushq %GS:8;
pushq %GS:16;
// store oldp
movq %RSP, (%RCX);
// load newp to begin context switch
movq %RDX, %RSP;
// load saved state from new stack
popq %GS:16;
popq %GS:8;
popq %GS:0;
popq %R15;
popq %R14;
popq %R13;
popq %R12;
popq %RBX;
popq %RBP;
// 'return' to complete switch
popq %RCX;
jmp *%RCX;
.cfi_endproc
.size CSYM(fiber_switchContext),.-CSYM(fiber_switchContext)
#elif defined(_X86_)
.text
.globl CSYM(fiber_switchContext)
.type CSYM(fiber_switchContext), @function
.align 16
CSYM(fiber_switchContext):
.cfi_startproc
// Save current stack state.save current stack state
// Standard CDECL prologue.
push %EBP;
mov %ESP, %EBP;
push %EDI;
push %ESI;
push %EBX;
push %FS:0;
push %FS:4;
push %FS:8;
push %EAX;
// store oldp again with more accurate address
mov 8(%EBP), %EAX;
mov %ESP, (%EAX);
// load newp to begin context switch
mov 12(%EBP), %ESP;
// load saved state from new stack
pop %EAX;
pop %FS:8;
pop %FS:4;
pop %FS:0;
pop %EBX;
pop %ESI;
pop %EDI;
pop %EBP;
// 'return' to complete switch
ret;
.cfi_endproc
.size CSYM(fiber_switchContext),.-CSYM(fiber_switchContext)
#endif

102
libphobos/libdruntime/config/mips/switchcontext.S Normal file
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/* MIPS support code for fibers and multithreading.
Copyright (C) 2019 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "../common/threadasm.S"
#if _MIPS_SIM == _ABIO32
/**
* Performs a context switch.
*
* $a0 - void** - ptr to old stack pointer
* $a1 - void* - new stack pointer
*
*/
.text
.globl fiber_switchContext
.align 2
.ent fiber_switchContext,0
fiber_switchContext:
.cfi_startproc
addiu $sp, $sp, -(10 * 4)
// fp regs and return address are stored below the stack
// because we don't want the GC to scan them.
#ifdef __mips_hard_float
#define ALIGN8(val) (val + (-val & 7))
#define BELOW (ALIGN8(6 * 8 + 4))
sdc1 $f20, (0 * 8 - BELOW)($sp)
sdc1 $f22, (1 * 8 - BELOW)($sp)
sdc1 $f24, (2 * 8 - BELOW)($sp)
sdc1 $f26, (3 * 8 - BELOW)($sp)
sdc1 $f28, (4 * 8 - BELOW)($sp)
sdc1 $f30, (5 * 8 - BELOW)($sp)
#endif
sw $ra, -4($sp)
sw $s0, (0 * 4)($sp)
sw $s1, (1 * 4)($sp)
sw $s2, (2 * 4)($sp)
sw $s3, (3 * 4)($sp)
sw $s4, (4 * 4)($sp)
sw $s5, (5 * 4)($sp)
sw $s6, (6 * 4)($sp)
sw $s7, (7 * 4)($sp)
sw $s8, (8 * 4)($sp)
sw $gp, (9 * 4)($sp)
// swap stack pointer
sw $sp, 0($a0)
move $sp, $a1
#ifdef __mips_hard_float
ldc1 $f20, (0 * 8 - BELOW)($sp)
ldc1 $f22, (1 * 8 - BELOW)($sp)
ldc1 $f24, (2 * 8 - BELOW)($sp)
ldc1 $f26, (3 * 8 - BELOW)($sp)
ldc1 $f28, (4 * 8 - BELOW)($sp)
ldc1 $f30, (5 * 8 - BELOW)($sp)
#endif
lw $ra, -4($sp)
lw $s0, (0 * 4)($sp)
lw $s1, (1 * 4)($sp)
lw $s2, (2 * 4)($sp)
lw $s3, (3 * 4)($sp)
lw $s4, (4 * 4)($sp)
lw $s5, (5 * 4)($sp)
lw $s6, (6 * 4)($sp)
lw $s7, (7 * 4)($sp)
lw $s8, (8 * 4)($sp)
lw $gp, (9 * 4)($sp)
addiu $sp, $sp, (10 * 4)
jr $ra // return
.cfi_endproc
.end fiber_switchContext
.size fiber_switchContext,.-fiber_switchContext
#endif

150
libphobos/libdruntime/config/powerpc/switchcontext.S Normal file
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/* PowerPC support code for fibers and multithreading.
Copyright (C) 2019 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "../common/threadasm.S"
/**
* Performs a context switch.
*
* r3 - old context pointer
* r4 - new context pointer
*
*/
.text
.globl CSYM(_fiber_switchContext)
.type CSYM(_fiber_switchContext), @function
.align 2
CSYM(_fiber_switchContext):
.cfi_startproc
/* Save linkage area */
mflr 0
mfcr 5
stw 0, 8(1)
stw 5, 4(1)
/* Save GPRs */
stw 11, (-1 * 4)(1)
stw 13, (-2 * 4)(1)
stw 14, (-3 * 4)(1)
stw 15, (-4 * 4)(1)
stw 16, (-5 * 4)(1)
stw 17, (-6 * 4)(1)
stw 18, (-7 * 4)(1)
stw 19, (-8 * 4)(1)
stw 20, (-9 * 4)(1)
stw 21, (-10 * 4)(1)
stw 22, (-11 * 4)(1)
stw 23, (-12 * 4)(1)
stw 24, (-13 * 4)(1)
stw 25, (-14 * 4)(1)
stw 26, (-15 * 4)(1)
stw 27, (-16 * 4)(1)
stw 28, (-17 * 4)(1)
stw 29, (-18 * 4)(1)
stw 30, (-19 * 4)(1)
stwu 31, (-20 * 4)(1)
/* We update the stack pointer here, since we do not want the GC to
scan the floating point registers. */
/* Save FPRs */
stfd 14, (-1 * 8)(1)
stfd 15, (-2 * 8)(1)
stfd 16, (-3 * 8)(1)
stfd 17, (-4 * 8)(1)
stfd 18, (-5 * 8)(1)
stfd 19, (-6 * 8)(1)
stfd 20, (-7 * 8)(1)
stfd 21, (-8 * 8)(1)
stfd 22, (-9 * 8)(1)
stfd 23, (-10 * 8)(1)
stfd 24, (-11 * 8)(1)
stfd 25, (-12 * 8)(1)
stfd 26, (-13 * 8)(1)
stfd 27, (-14 * 8)(1)
stfd 28, (-15 * 8)(1)
stfd 29, (-16 * 8)(1)
stfd 30, (-17 * 8)(1)
stfd 31, (-18 * 8)(1)
/* Update the old stack pointer */
stw 1, 0(3)
/* Set new stack pointer */
addi 1, 4, 20 * 4
/* Restore linkage area */
lwz 0, 8(1)
lwz 5, 4(1)
/* Restore GPRs */
lwz 11, (-1 * 4)(1)
lwz 13, (-2 * 4)(1)
lwz 14, (-3 * 4)(1)
lwz 15, (-4 * 4)(1)
lwz 16, (-5 * 4)(1)
lwz 17, (-6 * 4)(1)
lwz 18, (-7 * 4)(1)
lwz 19, (-8 * 4)(1)
lwz 20, (-9 * 4)(1)
lwz 21, (-10 * 4)(1)
lwz 22, (-11 * 4)(1)
lwz 23, (-12 * 4)(1)
lwz 24, (-13 * 4)(1)
lwz 25, (-14 * 4)(1)
lwz 26, (-15 * 4)(1)
lwz 27, (-16 * 4)(1)
lwz 28, (-17 * 4)(1)
lwz 29, (-18 * 4)(1)
lwz 30, (-19 * 4)(1)
lwz 31, (-20 * 4)(1)
/* Restore FPRs */
lfd 14, (-1 * 8)(4)
lfd 15, (-2 * 8)(4)
lfd 16, (-3 * 8)(4)
lfd 17, (-4 * 8)(4)
lfd 18, (-5 * 8)(4)
lfd 19, (-6 * 8)(4)
lfd 20, (-7 * 8)(4)
lfd 21, (-8 * 8)(4)
lfd 22, (-9 * 8)(4)
lfd 23, (-10 * 8)(4)
lfd 24, (-11 * 8)(4)
lfd 25, (-12 * 8)(4)
lfd 26, (-13 * 8)(4)
lfd 27, (-14 * 8)(4)
lfd 28, (-15 * 8)(4)
lfd 29, (-16 * 8)(4)
lfd 30, (-17 * 8)(4)
lfd 31, (-18 * 8)(4)
/* Set condition and link register */
mtcr 5
mtlr 0
/* Return and switch context */
blr
.cfi_endproc
.size CSYM(_fiber_switchContext),.-CSYM(_fiber_switchContext)

168
libphobos/libdruntime/config/powerpc64/callwithstack.S Normal file
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/* PowerPC64 support code for fibers and multithreading.
Copyright (C) 2019 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "../common/threadasm.S"
#if defined(_CALL_ELF) && _CALL_ELF == 2
#define USE_ABI_2
#define LINKAGE_SZ 32
#define LR_OFS 16
#define TOC_OFS 24
#define GPR_OFS 32
#define STACK_SZ (LINKAGE_SZ + 26*8)
#define OFS_R3_R10 GPR_OFS
#define OFS_R14_R31 (GPR_OFS+8*8)
#else
#define LINKAGE_SZ 48
#define LR_OFS 16
#define TOC_OFS 40
#define GPR_OFS 112
#define STACK_SZ (LINKAGE_SZ + 8*8 + 18*8)
#define OFS_R3_R10 (STACK_SZ+LINKAGE_SZ)
#define OFS_R14_R31 GPR_OFS
#endif
.text
#if defined( USE_ABI_2 )
.abiversion 2
#endif
.globl _D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.align 2
.type _D4core6thread18callWithStackShellFNbMDFNbPvZvZv,@function
#if defined( USE_ABI_2 )
.section .text._D4core6thread18callWithStackShellFNbMDFNbPvZvZv,"a",@progbits
#else
.section .opd,"aw",@progbits
#endif
_D4core6thread18callWithStackShellFNbMDFNbPvZvZv:
#if !defined( USE_ABI_2 )
.align 3
.quad .L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.quad .TOC.@tocbase
.quad 0
#endif
.text
/*
* Called with:
* r3: pointer context
* r4: pointer to function
*/
.L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv:
.cfi_startproc
stdu 1, -STACK_SZ(1)
mflr 0
std 0, LR_OFS(1)
.cfi_def_cfa_offset 256
.cfi_offset lr, 16
/* Save r14-r31 in general register save area */
std 14, (OFS_R14_R31 + 0 * 8)(1)
std 15, (OFS_R14_R31 + 1 * 8)(1)
std 16, (OFS_R14_R31 + 2 * 8)(1)
std 17, (OFS_R14_R31 + 3 * 8)(1)
std 18, (OFS_R14_R31 + 4 * 8)(1)
std 19, (OFS_R14_R31 + 5 * 8)(1)
std 20, (OFS_R14_R31 + 6 * 8)(1)
std 21, (OFS_R14_R31 + 7 * 8)(1)
std 22, (OFS_R14_R31 + 8 * 8)(1)
std 23, (OFS_R14_R31 + 9 * 8)(1)
std 24, (OFS_R14_R31 + 10 * 8)(1)
std 25, (OFS_R14_R31 + 11 * 8)(1)
std 26, (OFS_R14_R31 + 12 * 8)(1)
std 27, (OFS_R14_R31 + 13 * 8)(1)
std 28, (OFS_R14_R31 + 14 * 8)(1)
std 29, (OFS_R14_R31 + 15 * 8)(1)
std 30, (OFS_R14_R31 + 16 * 8)(1)
std 31, (OFS_R14_R31 + 17 * 8)(1)
/* Save r3-r10 in parameter save area of caller */
std 3, (OFS_R3_R10 + 0 * 8)(1)
std 4, (OFS_R3_R10 + 1 * 8)(1)
std 5, (OFS_R3_R10 + 2 * 8)(1)
std 6, (OFS_R3_R10 + 3 * 8)(1)
std 7, (OFS_R3_R10 + 4 * 8)(1)
std 8, (OFS_R3_R10 + 5 * 8)(1)
std 9, (OFS_R3_R10 + 6 * 8)(1)
std 10, (OFS_R3_R10 + 7 * 8)(1)
/* Save r2 in TOC save area */
std 2, TOC_OFS(1)
/* Do not save r11, r12 and r13. */
/* Call delegate:
* r3: pointer to context
* r4: pointer to stack
*/
mr 5, 4
mr 4, 1
ld 6, 0(5)
ld 11, 16(5)
ld 2, 8(5)
mtctr 6
bctrl
nop
/* Restore r2 from TOC save area */
ld 2, TOC_OFS(1)
/* Restore r3-r10 from local variable space */
ld 3, (OFS_R3_R10 + 0 * 8)(1)
ld 4, (OFS_R3_R10 + 1 * 8)(1)
ld 5, (OFS_R3_R10 + 2 * 8)(1)
ld 6, (OFS_R3_R10 + 3 * 8)(1)
ld 7, (OFS_R3_R10 + 4 * 8)(1)
ld 8, (OFS_R3_R10 + 5 * 8)(1)
ld 9, (OFS_R3_R10 + 6 * 8)(1)
ld 10, (OFS_R3_R10 + 7 * 8)(1)
/* Restore r14-r31 from general register save area */
ld 14, (OFS_R14_R31 + 0 * 8)(1)
ld 15, (OFS_R14_R31 + 1 * 8)(1)
ld 16, (OFS_R14_R31 + 2 * 8)(1)
ld 17, (OFS_R14_R31 + 3 * 8)(1)
ld 18, (OFS_R14_R31 + 4 * 8)(1)
ld 19, (OFS_R14_R31 + 5 * 8)(1)
ld 20, (OFS_R14_R31 + 6 * 8)(1)
ld 21, (OFS_R14_R31 + 7 * 8)(1)
ld 22, (OFS_R14_R31 + 8 * 8)(1)
ld 23, (OFS_R14_R31 + 9 * 8)(1)
ld 24, (OFS_R14_R31 + 10 * 8)(1)
ld 25, (OFS_R14_R31 + 11 * 8)(1)
ld 26, (OFS_R14_R31 + 12 * 8)(1)
ld 27, (OFS_R14_R31 + 13 * 8)(1)
ld 28, (OFS_R14_R31 + 14 * 8)(1)
ld 29, (OFS_R14_R31 + 15 * 8)(1)
ld 30, (OFS_R14_R31 + 16 * 8)(1)
ld 31, (OFS_R14_R31 + 17 * 8)(1)
ld 0, LR_OFS(1)
mtlr 0
addi 1, 1, STACK_SZ
blr
.long 0
.quad 0
.Lend:
.size _D4core6thread18callWithStackShellFNbMDFNbPvZvZv, .Lend-.L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.cfi_endproc

96
libphobos/libdruntime/config/x86/switchcontext.S Normal file
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@ -0,0 +1,96 @@
/* i386 support code for fibers and multithreading.
Copyright (C) 2019 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "../common/threadasm.S"
#if defined(__i386__)
.text
.globl CSYM(fiber_switchContext)
.type CSYM(fiber_switchContext), @function
.align 16
CSYM(fiber_switchContext):
.cfi_startproc
// save current stack state
push %ebp
mov %esp, %ebp
push %edi
push %esi
push %ebx
push %eax
// store oldp again with more accurate address
mov 8(%ebp), %eax
mov %esp, (%eax)
// load newp to begin context switch
mov 12(%ebp), %esp
// load saved state from new stack
pop %eax
pop %ebx
pop %esi
pop %edi
pop %ebp
// 'return' to complete switch
ret
.cfi_endproc
.size CSYM(fiber_switchContext),.-CSYM(fiber_switchContext)
#elif defined(__x86_64__) && !defined(__ILP32__)
.text
.globl CSYM(fiber_switchContext)
.type CSYM(fiber_switchContext), @function
.align 16
CSYM(fiber_switchContext):
.cfi_startproc
// Save current stack state.save current stack state
push %rbp
mov %rsp, %rbp
push %rbx
push %r12
push %r13
push %r14
push %r15
// store oldp again with more accurate address
mov %rsp, (%rdi)
// load newp to begin context switch
mov %rsi, %rsp
// load saved state from new stack
pop %r15
pop %r14
pop %r13
pop %r12
pop %rbx
pop %rbp
// 'return' to complete switch
ret
.cfi_endproc
.size CSYM(fiber_switchContext),.-CSYM(fiber_switchContext)
#endif

682
libphobos/libdruntime/core/threadasm.S
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@ -1,682 +0,0 @@
/**
* Support code for mutithreading.
*
* Copyright: Copyright Mikola Lysenko 2005 - 2012.
* License: $(HTTP www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
* Authors: Mikola Lysenko, Martin Nowak, Kai Nacke
*/
/*
* Copyright Mikola Lysenko 2005 - 2012.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
/* NOTE: This file has been patched from the original DMD distribution to
* work with the GDC compiler.
*/
#if (__linux__ || __FreeBSD__ || __NetBSD__ || __DragonFly__) && __ELF__
/*
* Mark the resulting object file as not requiring execution permissions on
* stack memory. The absence of this section would mark the whole resulting
* library as requiring an executable stack, making it impossible to
* dynamically load druntime on several Linux platforms where this is
* forbidden due to security policies.
* Use %progbits instead of @progbits to support ARM and X86.
*/
.section .note.GNU-stack,"",%progbits
#endif
/* Let preprocessor tell us if C symbols have a prefix: __USER_LABEL_PREFIX__ */
#ifdef __USER_LABEL_PREFIX__
#define GLUE2(a, b) a ## b
#define GLUE(a, b) GLUE2(a, b)
#define CSYM(name) GLUE(__USER_LABEL_PREFIX__, name)
#else
#define CSYM(name) name
#endif
/************************************************************************************
* POWER PC ASM BITS
************************************************************************************/
#if defined( __PPC64__ )
#if defined(_CALL_ELF) && _CALL_ELF == 2
#define USE_ABI_2
#define LINKAGE_SZ 32
#define LR_OFS 16
#define TOC_OFS 24
#define GPR_OFS 32
#define STACK_SZ (LINKAGE_SZ + 26*8)
#define OFS_R3_R10 GPR_OFS
#define OFS_R14_R31 (GPR_OFS+8*8)
#else
#define LINKAGE_SZ 48
#define LR_OFS 16
#define TOC_OFS 40
#define GPR_OFS 112
#define STACK_SZ (LINKAGE_SZ + 8*8 + 18*8)
#define OFS_R3_R10 (STACK_SZ+LINKAGE_SZ)
#define OFS_R14_R31 GPR_OFS
#endif
.text
#if defined( USE_ABI_2 )
.abiversion 2
#endif
.globl _D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.align 2
.type _D4core6thread18callWithStackShellFNbMDFNbPvZvZv,@function
#if defined( USE_ABI_2 )
.section .text._D4core6thread18callWithStackShellFNbMDFNbPvZvZv,"a",@progbits
#else
.section .opd,"aw",@progbits
#endif
_D4core6thread18callWithStackShellFNbMDFNbPvZvZv:
#if !defined( USE_ABI_2 )
.align 3
.quad .L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.quad .TOC.@tocbase
.quad 0
#endif
.text
/*
* Called with:
* r3: pointer context
* r4: pointer to function
*/
.L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv:
.cfi_startproc
stdu 1, -STACK_SZ(1)
mflr 0
std 0, LR_OFS(1)
.cfi_def_cfa_offset 256
.cfi_offset lr, 16
/* Save r14-r31 in general register save area */
std 14, (OFS_R14_R31 + 0 * 8)(1)
std 15, (OFS_R14_R31 + 1 * 8)(1)
std 16, (OFS_R14_R31 + 2 * 8)(1)
std 17, (OFS_R14_R31 + 3 * 8)(1)
std 18, (OFS_R14_R31 + 4 * 8)(1)
std 19, (OFS_R14_R31 + 5 * 8)(1)
std 20, (OFS_R14_R31 + 6 * 8)(1)
std 21, (OFS_R14_R31 + 7 * 8)(1)
std 22, (OFS_R14_R31 + 8 * 8)(1)
std 23, (OFS_R14_R31 + 9 * 8)(1)
std 24, (OFS_R14_R31 + 10 * 8)(1)
std 25, (OFS_R14_R31 + 11 * 8)(1)
std 26, (OFS_R14_R31 + 12 * 8)(1)
std 27, (OFS_R14_R31 + 13 * 8)(1)
std 28, (OFS_R14_R31 + 14 * 8)(1)
std 29, (OFS_R14_R31 + 15 * 8)(1)
std 30, (OFS_R14_R31 + 16 * 8)(1)
std 31, (OFS_R14_R31 + 17 * 8)(1)
/* Save r3-r10 in parameter save area of caller */
std 3, (OFS_R3_R10 + 0 * 8)(1)
std 4, (OFS_R3_R10 + 1 * 8)(1)
std 5, (OFS_R3_R10 + 2 * 8)(1)
std 6, (OFS_R3_R10 + 3 * 8)(1)
std 7, (OFS_R3_R10 + 4 * 8)(1)
std 8, (OFS_R3_R10 + 5 * 8)(1)
std 9, (OFS_R3_R10 + 6 * 8)(1)
std 10, (OFS_R3_R10 + 7 * 8)(1)
/* Save r2 in TOC save area */
std 2, TOC_OFS(1)
/* Do not save r11, r12 and r13. */
/* Call delegate:
* r3: pointer to context
* r4: pointer to stack
*/
mr 5, 4
mr 4, 1
ld 6, 0(5)
ld 11, 16(5)
ld 2, 8(5)
mtctr 6
bctrl
nop
/* Restore r2 from TOC save area */
ld 2, TOC_OFS(1)
/* Restore r3-r10 from local variable space */
ld 3, (OFS_R3_R10 + 0 * 8)(1)
ld 4, (OFS_R3_R10 + 1 * 8)(1)
ld 5, (OFS_R3_R10 + 2 * 8)(1)
ld 6, (OFS_R3_R10 + 3 * 8)(1)
ld 7, (OFS_R3_R10 + 4 * 8)(1)
ld 8, (OFS_R3_R10 + 5 * 8)(1)
ld 9, (OFS_R3_R10 + 6 * 8)(1)
ld 10, (OFS_R3_R10 + 7 * 8)(1)
/* Restore r14-r31 from general register save area */
ld 14, (OFS_R14_R31 + 0 * 8)(1)
ld 15, (OFS_R14_R31 + 1 * 8)(1)
ld 16, (OFS_R14_R31 + 2 * 8)(1)
ld 17, (OFS_R14_R31 + 3 * 8)(1)
ld 18, (OFS_R14_R31 + 4 * 8)(1)
ld 19, (OFS_R14_R31 + 5 * 8)(1)
ld 20, (OFS_R14_R31 + 6 * 8)(1)
ld 21, (OFS_R14_R31 + 7 * 8)(1)
ld 22, (OFS_R14_R31 + 8 * 8)(1)
ld 23, (OFS_R14_R31 + 9 * 8)(1)
ld 24, (OFS_R14_R31 + 10 * 8)(1)
ld 25, (OFS_R14_R31 + 11 * 8)(1)
ld 26, (OFS_R14_R31 + 12 * 8)(1)
ld 27, (OFS_R14_R31 + 13 * 8)(1)
ld 28, (OFS_R14_R31 + 14 * 8)(1)
ld 29, (OFS_R14_R31 + 15 * 8)(1)
ld 30, (OFS_R14_R31 + 16 * 8)(1)
ld 31, (OFS_R14_R31 + 17 * 8)(1)
ld 0, LR_OFS(1)
mtlr 0
addi 1, 1, STACK_SZ
blr
.long 0
.quad 0
.Lend:
.size _D4core6thread18callWithStackShellFNbMDFNbPvZvZv, .Lend-.L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.cfi_endproc
#elif defined( __ppc__ ) || defined( __PPC__ ) || defined( __powerpc__ )
/**
* Performs a context switch.
*
* r3 - old context pointer
* r4 - new context pointer
*
*/
.text
.align 2
.globl _fiber_switchContext
_fiber_switchContext:
/* Save linkage area */
mflr 0
mfcr 5
stw 0, 8(1)
stw 5, 4(1)
/* Save GPRs */
stw 11, (-1 * 4)(1)
stw 13, (-2 * 4)(1)
stw 14, (-3 * 4)(1)
stw 15, (-4 * 4)(1)
stw 16, (-5 * 4)(1)
stw 17, (-6 * 4)(1)
stw 18, (-7 * 4)(1)
stw 19, (-8 * 4)(1)
stw 20, (-9 * 4)(1)
stw 21, (-10 * 4)(1)
stw 22, (-11 * 4)(1)
stw 23, (-12 * 4)(1)
stw 24, (-13 * 4)(1)
stw 25, (-14 * 4)(1)
stw 26, (-15 * 4)(1)
stw 27, (-16 * 4)(1)
stw 28, (-17 * 4)(1)
stw 29, (-18 * 4)(1)
stw 30, (-19 * 4)(1)
stwu 31, (-20 * 4)(1)
/* We update the stack pointer here, since we do not want the GC to
scan the floating point registers. */
/* Save FPRs */
stfd 14, (-1 * 8)(1)
stfd 15, (-2 * 8)(1)
stfd 16, (-3 * 8)(1)
stfd 17, (-4 * 8)(1)
stfd 18, (-5 * 8)(1)
stfd 19, (-6 * 8)(1)
stfd 20, (-7 * 8)(1)
stfd 21, (-8 * 8)(1)
stfd 22, (-9 * 8)(1)
stfd 23, (-10 * 8)(1)
stfd 24, (-11 * 8)(1)
stfd 25, (-12 * 8)(1)
stfd 26, (-13 * 8)(1)
stfd 27, (-14 * 8)(1)
stfd 28, (-15 * 8)(1)
stfd 29, (-16 * 8)(1)
stfd 30, (-17 * 8)(1)
stfd 31, (-18 * 8)(1)
/* Update the old stack pointer */
stw 1, 0(3)
/* Set new stack pointer */
addi 1, 4, 20 * 4
/* Restore linkage area */
lwz 0, 8(1)
lwz 5, 4(1)
/* Restore GPRs */
lwz 11, (-1 * 4)(1)
lwz 13, (-2 * 4)(1)
lwz 14, (-3 * 4)(1)
lwz 15, (-4 * 4)(1)
lwz 16, (-5 * 4)(1)
lwz 17, (-6 * 4)(1)
lwz 18, (-7 * 4)(1)
lwz 19, (-8 * 4)(1)
lwz 20, (-9 * 4)(1)
lwz 21, (-10 * 4)(1)
lwz 22, (-11 * 4)(1)
lwz 23, (-12 * 4)(1)
lwz 24, (-13 * 4)(1)
lwz 25, (-14 * 4)(1)
lwz 26, (-15 * 4)(1)
lwz 27, (-16 * 4)(1)
lwz 28, (-17 * 4)(1)
lwz 29, (-18 * 4)(1)
lwz 30, (-19 * 4)(1)
lwz 31, (-20 * 4)(1)
/* Restore FPRs */
lfd 14, (-1 * 8)(4)
lfd 15, (-2 * 8)(4)
lfd 16, (-3 * 8)(4)
lfd 17, (-4 * 8)(4)
lfd 18, (-5 * 8)(4)
lfd 19, (-6 * 8)(4)
lfd 20, (-7 * 8)(4)
lfd 21, (-8 * 8)(4)
lfd 22, (-9 * 8)(4)
lfd 23, (-10 * 8)(4)
lfd 24, (-11 * 8)(4)
lfd 25, (-12 * 8)(4)
lfd 26, (-13 * 8)(4)
lfd 27, (-14 * 8)(4)
lfd 28, (-15 * 8)(4)
lfd 29, (-16 * 8)(4)
lfd 30, (-17 * 8)(4)
lfd 31, (-18 * 8)(4)
/* Set condition and link register */
mtcr 5
mtlr 0
/* Return and switch context */
blr
#elif defined(__mips__) && _MIPS_SIM == _ABIO32
/************************************************************************************
* MIPS ASM BITS
************************************************************************************/
/**
* Performs a context switch.
*
* $a0 - void** - ptr to old stack pointer
* $a1 - void* - new stack pointer
*
*/
.text
.globl fiber_switchContext
fiber_switchContext:
addiu $sp, $sp, -(10 * 4)
// fp regs and return address are stored below the stack
// because we don't want the GC to scan them.
#ifdef __mips_hard_float
#define ALIGN8(val) (val + (-val & 7))
#define BELOW (ALIGN8(6 * 8 + 4))
sdc1 $f20, (0 * 8 - BELOW)($sp)
sdc1 $f22, (1 * 8 - BELOW)($sp)
sdc1 $f24, (2 * 8 - BELOW)($sp)
sdc1 $f26, (3 * 8 - BELOW)($sp)
sdc1 $f28, (4 * 8 - BELOW)($sp)
sdc1 $f30, (5 * 8 - BELOW)($sp)
#endif
sw $ra, -4($sp)
sw $s0, (0 * 4)($sp)
sw $s1, (1 * 4)($sp)
sw $s2, (2 * 4)($sp)
sw $s3, (3 * 4)($sp)
sw $s4, (4 * 4)($sp)
sw $s5, (5 * 4)($sp)
sw $s6, (6 * 4)($sp)
sw $s7, (7 * 4)($sp)
sw $s8, (8 * 4)($sp)
sw $gp, (9 * 4)($sp)
// swap stack pointer
sw $sp, 0($a0)
move $sp, $a1
#ifdef __mips_hard_float
ldc1 $f20, (0 * 8 - BELOW)($sp)
ldc1 $f22, (1 * 8 - BELOW)($sp)
ldc1 $f24, (2 * 8 - BELOW)($sp)
ldc1 $f26, (3 * 8 - BELOW)($sp)
ldc1 $f28, (4 * 8 - BELOW)($sp)
ldc1 $f30, (5 * 8 - BELOW)($sp)
#endif
lw $ra, -4($sp)
lw $s0, (0 * 4)($sp)
lw $s1, (1 * 4)($sp)
lw $s2, (2 * 4)($sp)
lw $s3, (3 * 4)($sp)
lw $s4, (4 * 4)($sp)
lw $s5, (5 * 4)($sp)
lw $s6, (6 * 4)($sp)
lw $s7, (7 * 4)($sp)
lw $s8, (8 * 4)($sp)
lw $gp, (9 * 4)($sp)
addiu $sp, $sp, (10 * 4)
jr $ra // return
#elif defined(__arm__) && defined(__ARM_EABI__)
/************************************************************************************
* ARM ASM BITS
************************************************************************************/
/**
* Performs a context switch.
*
* Parameters:
* r0 - void** - ptr to old stack pointer
* r1 - void* - new stack pointer
*
* ARM EABI registers:
* r0-r3 : argument/scratch registers
* r4-r10 : callee-save registers
* r11 : frame pointer (or a callee save register if fp isn't needed)
* r12 =ip : inter procedure register. We can treat it like any other scratch register
* r13 =sp : stack pointer
* r14 =lr : link register, it contains the return address (belonging to the function which called us)
* r15 =pc : program counter
*
* For floating point registers:
* According to AAPCS (version 2.09, section 5.1.2) only the d8-d15 registers need to be preserved
* across method calls. This applies to all ARM FPU variants, whether they have 16 or 32 double registers
* NEON support or not, half-float support or not and so on does not matter.
*
* Note: If this file was compiled with -mfloat-abi=soft but the code runs on a softfp system with fpu the d8-d15
* registers won't be saved (we do not know that the system has got a fpu in that case) but the registers might actually
* be used by other code if it was compiled with -mfloat-abi=softfp.
*
* Interworking is only supported on ARMv5+, not on ARM v4T as ARM v4t requires special stubs when changing
* from thumb to arm mode or the other way round.
*/
.text
.align 2
.global fiber_switchContext
#if defined(__ARM_PCS_VFP) || (defined(__ARM_PCS) && !defined(__SOFTFP__)) // ARM_HardFloat || ARM_SoftFP
.fpu vfp
#endif
.type fiber_switchContext, %function
fiber_switchContext:
.fnstart
push {r4-r11}
// update the oldp pointer. Link register and floating point registers stored later to prevent the GC from
// scanning them.
str sp, [r0]
// push r0 (or any other register) as well to keep stack 8byte aligned
push {r0, lr}
#if defined(__ARM_PCS_VFP) || (defined(__ARM_PCS) && !defined(__SOFTFP__)) // ARM_HardFloat || ARM_SoftFP
vpush {d8-d15}
// now switch over to the new stack. Need to subtract (8*8[d8-d15]+2*4[r0, lr]) to position stack pointer
// below the last saved register. Remember we saved the SP before pushing [r0, lr, d8-d15]
sub sp, r1, #72
vpop {d8-d15}
#else
sub sp, r1, #8
#endif
// we don't really care about r0, we only used that for padding.
// r1 is now what used to be in the link register when saving.
pop {r0, r1, r4-r11}
/**
* The link register for the initial jump to fiber_entryPoint must be zero: The jump actually
* looks like a normal method call as we jump to the start of the fiber_entryPoint function.
* Although fiber_entryPoint never returns and therefore never accesses lr, it saves lr to the stack.
* ARM unwinding will then look at the stack, find lr and think that fiber_entryPoint was called by
* the function in lr! So if we have some address in lr the unwinder will try to continue stack unwinding,
* although it's already at the stack base and crash.
* In all other cases the content of lr doesn't matter.
* Note: If we simply loaded into lr above and then moved lr into pc, the initial method call
* to fiber_entryPoint would look as if it was called from fiber_entryPoint itself, as the fiber_entryPoint
* address is in lr on the initial context switch.
*/
mov lr, #0
// return by writing lr into pc
mov pc, r1
.fnend
#elif defined(__aarch64__)
/************************************************************************************
* AArch64 (arm64) ASM BITS
************************************************************************************/
/**
* preserve/restore AAPCS64 registers
* x19-x28 5.1.1 64-bit callee saved
* x29 fp, or possibly callee saved reg - depends on platform choice 5.2.3)
* x30 lr
* d8-d15 5.1.2 says callee only must save bottom 64-bits (the "d" regs)
*
* saved regs on stack will look like:
* 19: x19
* 18: x20
* ...
* 10: x28
* 9: x29 (fp) <-- oldp / *newp save stack top
* 8: x30 (lr)
* 7: d8
* ...
* 0: d15 <-- sp
*/
.text
.global CSYM(fiber_switchContext)
.type fiber_switchContext, %function
.p2align 2
CSYM(fiber_switchContext):
stp d15, d14, [sp, #-20*8]!
stp d13, d12, [sp, #2*8]
stp d11, d10, [sp, #4*8]
stp d9, d8, [sp, #6*8]
stp x30, x29, [sp, #8*8] // lr, fp
stp x28, x27, [sp, #10*8]
stp x26, x25, [sp, #12*8]
stp x24, x23, [sp, #14*8]
stp x22, x21, [sp, #16*8]
stp x20, x19, [sp, #18*8]
// oldp is set above saved lr (x30) to hide it and float regs
// from GC
add x19, sp, #9*8
str x19, [x0] // *oldp tstack
sub sp, x1, #9*8 // switch to newp sp
ldp x20, x19, [sp, #18*8]
ldp x22, x21, [sp, #16*8]
ldp x24, x23, [sp, #14*8]
ldp x26, x25, [sp, #12*8]
ldp x28, x27, [sp, #10*8]
ldp x30, x29, [sp, #8*8] // lr, fp
ldp d9, d8, [sp, #6*8]
ldp d11, d10, [sp, #4*8]
ldp d13, d12, [sp, #2*8]
ldp d15, d14, [sp], #20*8
ret
/**
* When generating any kind of backtrace (gdb, exception handling) for
* a function called in a Fiber, we need to tell the unwinder to stop
* at our Fiber main entry point, i.e. we need to mark the bottom of
* the call stack. This can be done by clearing the link register lr
* prior to calling fiber_entryPoint (i.e. in fiber_switchContext) or
* using a .cfi_undefined directive for the link register in the
* Fiber entry point. cfi_undefined seems to yield better results in gdb.
* Unfortunately we can't place it into fiber_entryPoint using inline
* asm, so we use this trampoline instead.
*/
.text
.global CSYM(fiber_trampoline)
.p2align 2
.type fiber_trampoline, %function
CSYM(fiber_trampoline):
.cfi_startproc
.cfi_undefined x30
// fiber_entryPoint never returns
bl fiber_entryPoint
.cfi_endproc
#elif defined(__MINGW32__)
/************************************************************************************
* GDC MinGW ASM BITS
************************************************************************************/
#if defined(__x86_64__)
.global fiber_switchContext
fiber_switchContext:
pushq %RBP;
movq %RSP, %RBP;
pushq %RBX;
pushq %R12;
pushq %R13;
pushq %R14;
pushq %R15;
pushq %GS:0;
pushq %GS:8;
pushq %GS:16;
// store oldp
movq %RSP, (%RCX);
// load newp to begin context switch
movq %RDX, %RSP;
// load saved state from new stack
popq %GS:16;
popq %GS:8;
popq %GS:0;
popq %R15;
popq %R14;
popq %R13;
popq %R12;
popq %RBX;
popq %RBP;
// 'return' to complete switch
popq %RCX;
jmp *%RCX;
#elif defined(_X86_)
.global _fiber_switchContext
_fiber_switchContext:
// Save current stack state.save current stack state
// Standard CDECL prologue.
push %EBP;
mov %ESP, %EBP;
push %EDI;
push %ESI;
push %EBX;
push %FS:0;
push %FS:4;
push %FS:8;
push %EAX;
// store oldp again with more accurate address
mov 8(%EBP), %EAX;
mov %ESP, (%EAX);
// load newp to begin context switch
mov 12(%EBP), %ESP;
// load saved state from new stack
pop %EAX;
pop %FS:8;
pop %FS:4;
pop %FS:0;
pop %EBX;
pop %ESI;
pop %EDI;
pop %EBP;
// 'return' to complete switch
ret;
#endif
// if POSIX boils down to this (reference http://nadeausoftware.com)
#elif !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)))
/************************************************************************************
* i386- and x86_64-apple-darwin POSIX ASM BITS
************************************************************************************/
#if defined(__i386__)
.text
.p2align 4
.globl CSYM(fiber_switchContext)
CSYM(fiber_switchContext):
// save current stack state
push %ebp
mov %esp, %ebp
push %edi
push %esi
push %ebx
push %eax
// store oldp again with more accurate address
mov 8(%ebp), %eax
mov %esp, (%eax)
// load newp to begin context switch
mov 12(%ebp), %esp
// load saved state from new stack
pop %eax
pop %ebx
pop %esi
pop %edi
pop %ebp
// 'return' to complete switch
ret
#elif defined(__x86_64__) && !defined(__ILP32__)
.text
.p2align 4
.globl CSYM(fiber_switchContext)
CSYM(fiber_switchContext):
// Save current stack state.save current stack state
push %rbp
mov %rsp, %rbp
push %rbx
push %r12
push %r13
push %r14
push %r15
// store oldp again with more accurate address
mov %rsp, (%rdi)
// load newp to begin context switch
mov %rsi, %rsp
// load saved state from new stack
pop %r15
pop %r14
pop %r13
pop %r12
pop %rbx
pop %rbp
// 'return' to complete switch
ret
#endif // __x86_64__ && !__ILP32__
#endif // posix

38
libphobos/m4/druntime/cpu.m4
View File

@ -3,6 +3,44 @@
#
# DRUNTIME_CPU_SOURCES
# -------------------
# Detect target CPU and add DRUNTIME_CPU_XXX conditionals.
AC_DEFUN([DRUNTIME_CPU_SOURCES],
[
druntime_target_cpu_parsed=""
case "$target_cpu" in
aarch64*)
druntime_target_cpu_parsed="aarch64"
;;
arm*) druntime_target_cpu_parsed="arm"
;;
mips*) druntime_target_cpu_parsed="mips"
;;
powerpc) druntime_target_cpu_parsed="powerpc"
;;
powerpc64)
druntime_target_cpu_parsed="powerpc64"
;;
i[34567]86|x86_64)
druntime_target_cpu_parsed="x86"
;;
esac
AM_CONDITIONAL([DRUNTIME_CPU_AARCH64],
[test "$druntime_target_cpu_parsed" = "aarch64"])
AM_CONDITIONAL([DRUNTIME_CPU_ARM],
[test "$druntime_target_cpu_parsed" = "arm"])
AM_CONDITIONAL([DRUNTIME_CPU_MIPS],
[test "$druntime_target_cpu_parsed" = "mips"])
AM_CONDITIONAL([DRUNTIME_CPU_POWERPC],
[test "$druntime_target_cpu_parsed" = "powerpc"])
AM_CONDITIONAL([DRUNTIME_CPU_POWERPC64],
[test "$druntime_target_cpu_parsed" = "powerpc64"])
AM_CONDITIONAL([DRUNTIME_CPU_X86],
[test "$druntime_target_cpu_parsed" = "x86"])
])
# DRUNTIME_ENABLE_ATOMIC_BUILTINS
# -------------------------
# Check support for atomic builtins up to 64 bit.