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From 7fa71be34052de9bdd9f7bdf625ceeaabc7f16f0 Mon Sep 17 00:00:00 2001
From: Yang Yujie <yangyujie@loongson.cn>
Date: Tue, 5 Sep 2023 11:50:07 +0800
Subject: [PATCH 062/124] LoongArch: initial ada support on linux
gcc/ada/ChangeLog:
* Makefile.rtl: Add LoongArch support.
* libgnarl/s-linux__loongarch.ads: New file.
* libgnat/system-linux-loongarch.ads: New file.
gcc/ChangeLog:
* config/loongarch/loongarch.h (CC1_SPEC): Mark normalized
options passed from driver to gnat1 as explicit for multilib.
Signed-off-by: Peng Fan <fanpeng@loongson.cn>
Signed-off-by: ticat_fp <fanpeng@loongson.cn>
---
gcc/ada/Makefile.rtl | 49 +++++++
gcc/ada/libgnarl/s-linux__loongarch.ads | 134 +++++++++++++++++++
gcc/ada/libgnat/system-linux-loongarch.ads | 145 +++++++++++++++++++++
gcc/config/loongarch/loongarch.h | 4 +-
4 files changed, 330 insertions(+), 2 deletions(-)
create mode 100644 gcc/ada/libgnarl/s-linux__loongarch.ads
create mode 100644 gcc/ada/libgnat/system-linux-loongarch.ads
diff --git a/gcc/ada/Makefile.rtl b/gcc/ada/Makefile.rtl
index aaf853e3a..579645d95 100644
--- a/gcc/ada/Makefile.rtl
+++ b/gcc/ada/Makefile.rtl
@@ -2195,6 +2195,55 @@ ifeq ($(strip $(filter-out cygwin% mingw32% pe,$(target_os))),)
LIBRARY_VERSION := $(LIB_VERSION)
endif
+# LoongArch Linux
+ifeq ($(strip $(filter-out loongarch% linux%,$(target_cpu) $(target_os))),)
+ LIBGNAT_TARGET_PAIRS = \
+ a-exetim.adb<libgnarl/a-exetim__posix.adb \
+ a-exetim.ads<libgnarl/a-exetim__default.ads \
+ a-intnam.ads<libgnarl/a-intnam__linux.ads \
+ a-nallfl.ads<libgnat/a-nallfl__wraplf.ads \
+ a-synbar.adb<libgnarl/a-synbar__posix.adb \
+ a-synbar.ads<libgnarl/a-synbar__posix.ads \
+ s-inmaop.adb<libgnarl/s-inmaop__posix.adb \
+ s-intman.adb<libgnarl/s-intman__posix.adb \
+ s-linux.ads<libgnarl/s-linux__loongarch.ads \
+ s-mudido.adb<libgnarl/s-mudido__affinity.adb \
+ s-osinte.ads<libgnarl/s-osinte__linux.ads \
+ s-osinte.adb<libgnarl/s-osinte__posix.adb \
+ s-osprim.adb<libgnat/s-osprim__posix.adb \
+ s-taprop.adb<libgnarl/s-taprop__linux.adb \
+ s-tasinf.ads<libgnarl/s-tasinf__linux.ads \
+ s-tasinf.adb<libgnarl/s-tasinf__linux.adb \
+ s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+ s-taspri.ads<libgnarl/s-taspri__posix.ads \
+ g-sercom.adb<libgnat/g-sercom__linux.adb \
+ $(TRASYM_DWARF_UNIX_PAIRS) \
+ $(GNATRTL_128BIT_PAIRS) \
+ s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+ $(ATOMICS_TARGET_PAIRS) \
+ $(ATOMICS_BUILTINS_TARGET_PAIRS) \
+ system.ads<libgnat/system-linux-loongarch.ads
+
+ TOOLS_TARGET_PAIRS = indepsw.adb<indepsw-gnu.adb
+
+ EXTRA_GNATRTL_NONTASKING_OBJS += $(TRASYM_DWARF_UNIX_OBJS)
+ EXTRA_GNATRTL_NONTASKING_OBJS += $(GNATRTL_128BIT_OBJS)
+ EXTRA_GNATRTL_TASKING_OBJS = s-linux.o a-exetim.o
+
+ EH_MECHANISM = -gcc
+ THREADSLIB = -lpthread
+ MISCLIB = -ldl
+ GNATLIB_SHARED = gnatlib-shared-dual
+ GMEM_LIB = gmemlib
+ LIBRARY_VERSION := $(LIB_VERSION)
+ # Temporarily disable strict alignment -- for some reason, it causes
+ # infinite loops during stack unwinding (libgcc) and indefinite hang
+ # in some futex system calls.
+ GNATLIBCFLAGS += -mno-strict-align
+ GNATLIBCFLAGS_FOR_C += -mno-strict-align
+endif
+
+
# Mips Linux
ifeq ($(strip $(filter-out mips% linux%,$(target_cpu) $(target_os))),)
LIBGNAT_TARGET_PAIRS = \
diff --git a/gcc/ada/libgnarl/s-linux__loongarch.ads b/gcc/ada/libgnarl/s-linux__loongarch.ads
new file mode 100644
index 000000000..9773ec0ad
--- /dev/null
+++ b/gcc/ada/libgnarl/s-linux__loongarch.ads
@@ -0,0 +1,134 @@
+------------------------------------------------------------------------------
+-- --
+-- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
+-- --
+-- S Y S T E M . L I N U X --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 2009-2023, Free Software Foundation, Inc. --
+-- --
+-- GNARL is free software; you can redistribute it and/or modify it under --
+-- terms of the GNU General Public License as published by the Free Soft- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
+-- --
+-- As a special exception 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/>. --
+-- --
+------------------------------------------------------------------------------
+
+-- This is the LoongArch version of this package
+
+-- This package encapsulates cpu specific differences between implementations
+-- of GNU/Linux, in order to share s-osinte-linux.ads.
+
+-- PLEASE DO NOT add any with-clauses to this package or remove the pragma
+-- Preelaborate. This package is designed to be a bottom-level (leaf) package
+
+with Interfaces.C;
+with System.Parameters;
+
+package System.Linux is
+ pragma Preelaborate;
+
+ ----------
+ -- Time --
+ ----------
+
+ subtype int is Interfaces.C.int;
+ subtype long is Interfaces.C.long;
+ subtype suseconds_t is Interfaces.C.long;
+ type time_t is range -2 ** (System.Parameters.time_t_bits - 1)
+ .. 2 ** (System.Parameters.time_t_bits - 1) - 1;
+ subtype clockid_t is Interfaces.C.int;
+
+ type timespec is record
+ tv_sec : time_t;
+ tv_nsec : long;
+ end record;
+ pragma Convention (C, timespec);
+
+ type timeval is record
+ tv_sec : time_t;
+ tv_usec : suseconds_t;
+ end record;
+ pragma Convention (C, timeval);
+
+ -----------
+ -- Errno --
+ -----------
+
+ EAGAIN : constant := 11;
+ EINTR : constant := 4;
+ EINVAL : constant := 22;
+ ENOMEM : constant := 12;
+ EPERM : constant := 1;
+ ETIMEDOUT : constant := 110;
+
+ -------------
+ -- Signals --
+ -------------
+
+ SIGHUP : constant := 1; -- hangup
+ SIGINT : constant := 2; -- interrupt (rubout)
+ SIGQUIT : constant := 3; -- quit (ASCD FS)
+ SIGILL : constant := 4; -- illegal instruction (not reset)
+ SIGTRAP : constant := 5; -- trace trap (not reset)
+ SIGIOT : constant := 6; -- IOT instruction
+ SIGABRT : constant := 6; -- used by abort, replace SIGIOT in the future
+ SIGBUS : constant := 7; -- bus error
+ SIGFPE : constant := 8; -- floating point exception
+ SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
+ SIGUSR1 : constant := 10; -- user defined signal 1
+ SIGSEGV : constant := 11; -- segmentation violation
+ SIGUSR2 : constant := 12; -- user defined signal 2
+ SIGPIPE : constant := 13; -- write on a pipe with no one to read it
+ SIGALRM : constant := 14; -- alarm clock
+ SIGTERM : constant := 15; -- software termination signal from kill
+ SIGSTKFLT : constant := 16; -- coprocessor stack fault (Linux)
+ SIGCLD : constant := 17; -- alias for SIGCHLD
+ SIGCHLD : constant := 17; -- child status change
+ SIGCONT : constant := 18; -- stopped process has been continued
+ SIGSTOP : constant := 19; -- stop (cannot be caught or ignored)
+ SIGTSTP : constant := 20; -- user stop requested from tty
+ SIGTTIN : constant := 21; -- background tty read attempted
+ SIGTTOU : constant := 22; -- background tty write attempted
+ SIGURG : constant := 23; -- urgent condition on IO channel
+ SIGXCPU : constant := 24; -- CPU time limit exceeded
+ SIGXFSZ : constant := 25; -- filesize limit exceeded
+ SIGVTALRM : constant := 26; -- virtual timer expired
+ SIGPROF : constant := 27; -- profiling timer expired
+ SIGWINCH : constant := 28; -- window size change
+ SIGPOLL : constant := 29; -- pollable event occurred
+ SIGIO : constant := 29; -- I/O now possible (4.2 BSD)
+ SIGPWR : constant := 30; -- power-fail restart
+ SIGSYS : constant := 31; -- bad system call
+ SIG32 : constant := 32; -- glibc internal signal
+ SIG33 : constant := 33; -- glibc internal signal
+ SIG34 : constant := 34; -- glibc internal signal
+
+ -- These don't exist for Linux/LoongArch. The constants are present
+ -- so that we can continue to use a-intnam-linux.ads.
+ SIGLOST : constant := 0; -- File lock lost
+ SIGUNUSED : constant := 0; -- unused signal (GNU/Linux)
+ SIGEMT : constant := 0; -- EMT
+
+ -- struct_sigaction offsets
+
+ sa_handler_pos : constant := 0;
+ sa_mask_pos : constant := Standard'Address_Size / 8;
+ sa_flags_pos : constant := 128 + sa_mask_pos;
+
+ SA_SIGINFO : constant := 16#04#;
+ SA_ONSTACK : constant := 16#08000000#;
+
+end System.Linux;
diff --git a/gcc/ada/libgnat/system-linux-loongarch.ads b/gcc/ada/libgnat/system-linux-loongarch.ads
new file mode 100644
index 000000000..735f67041
--- /dev/null
+++ b/gcc/ada/libgnat/system-linux-loongarch.ads
@@ -0,0 +1,145 @@
+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME COMPONENTS --
+-- --
+-- S Y S T E M --
+-- --
+-- S p e c --
+-- (GNU-Linux/LoongArch Version) --
+-- --
+-- Copyright (C) 1992-2023, Free Software Foundation, Inc. --
+-- --
+-- This specification is derived from the Ada Reference Manual for use with --
+-- GNAT. The copyright notice above, and the license provisions that follow --
+-- apply solely to the contents of the part following the private keyword. --
+-- --
+-- GNAT is free software; you can redistribute it and/or modify it under --
+-- terms of the GNU General Public License as published by the Free Soft- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
+-- --
+-- As a special exception 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/>. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+package System is
+ pragma Pure;
+ -- Note that we take advantage of the implementation permission to make
+ -- this unit Pure instead of Preelaborable; see RM 13.7.1(15). In Ada
+ -- 2005, this is Pure in any case (AI-362).
+
+ pragma No_Elaboration_Code_All;
+ -- Allow the use of that restriction in units that WITH this unit
+
+ type Name is (SYSTEM_NAME_GNAT);
+ System_Name : constant Name := SYSTEM_NAME_GNAT;
+
+ -- System-Dependent Named Numbers
+
+ Min_Int : constant := -2 ** (Standard'Max_Integer_Size - 1);
+ Max_Int : constant := 2 ** (Standard'Max_Integer_Size - 1) - 1;
+
+ Max_Binary_Modulus : constant := 2 ** Standard'Max_Integer_Size;
+ Max_Nonbinary_Modulus : constant := 2 ** Integer'Size - 1;
+
+ Max_Base_Digits : constant := Long_Long_Float'Digits;
+ Max_Digits : constant := Long_Long_Float'Digits;
+
+ Max_Mantissa : constant := Standard'Max_Integer_Size - 1;
+ Fine_Delta : constant := 2.0 ** (-Max_Mantissa);
+
+ Tick : constant := 0.000_001;
+
+ -- Storage-related Declarations
+
+ type Address is private;
+ pragma Preelaborable_Initialization (Address);
+ Null_Address : constant Address;
+
+ Storage_Unit : constant := 8;
+ Word_Size : constant := Standard'Word_Size;
+ Memory_Size : constant := 2 ** Word_Size;
+
+ -- Address comparison
+
+ function "<" (Left, Right : Address) return Boolean;
+ function "<=" (Left, Right : Address) return Boolean;
+ function ">" (Left, Right : Address) return Boolean;
+ function ">=" (Left, Right : Address) return Boolean;
+ function "=" (Left, Right : Address) return Boolean;
+
+ pragma Import (Intrinsic, "<");
+ pragma Import (Intrinsic, "<=");
+ pragma Import (Intrinsic, ">");
+ pragma Import (Intrinsic, ">=");
+ pragma Import (Intrinsic, "=");
+
+ -- Other System-Dependent Declarations
+
+ type Bit_Order is (High_Order_First, Low_Order_First);
+ Default_Bit_Order : constant Bit_Order := Low_Order_First;
+ pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning
+
+ -- Priority-related Declarations (RM D.1)
+
+ Max_Priority : constant Positive := 30;
+ Max_Interrupt_Priority : constant Positive := 31;
+
+ subtype Any_Priority is Integer range 0 .. 31;
+ subtype Priority is Any_Priority range 0 .. 30;
+ subtype Interrupt_Priority is Any_Priority range 31 .. 31;
+
+ Default_Priority : constant Priority := 15;
+
+private
+
+ type Address is mod Memory_Size;
+ Null_Address : constant Address := 0;
+
+ --------------------------------------
+ -- System Implementation Parameters --
+ --------------------------------------
+
+ -- These parameters provide information about the target that is used
+ -- by the compiler. They are in the private part of System, where they
+ -- can be accessed using the special circuitry in the Targparm unit
+ -- whose source should be consulted for more detailed descriptions
+ -- of the individual switch values.
+
+ Backend_Divide_Checks : constant Boolean := False;
+ Backend_Overflow_Checks : constant Boolean := True;
+ Command_Line_Args : constant Boolean := True;
+ Configurable_Run_Time : constant Boolean := False;
+ Denorm : constant Boolean := True;
+ Duration_32_Bits : constant Boolean := False;
+ Exit_Status_Supported : constant Boolean := True;
+ Machine_Overflows : constant Boolean := False;
+ Machine_Rounds : constant Boolean := True;
+ Preallocated_Stacks : constant Boolean := False;
+ Signed_Zeros : constant Boolean := True;
+ Stack_Check_Default : constant Boolean := False;
+ Stack_Check_Probes : constant Boolean := True;
+ Stack_Check_Limits : constant Boolean := False;
+ Support_Aggregates : constant Boolean := True;
+ Support_Composite_Assign : constant Boolean := True;
+ Support_Composite_Compare : constant Boolean := True;
+ Support_Long_Shifts : constant Boolean := True;
+ Always_Compatible_Rep : constant Boolean := False;
+ Suppress_Standard_Library : constant Boolean := False;
+ Use_Ada_Main_Program_Name : constant Boolean := False;
+ Frontend_Exceptions : constant Boolean := False;
+ ZCX_By_Default : constant Boolean := True;
+
+end System;
diff --git a/gcc/config/loongarch/loongarch.h b/gcc/config/loongarch/loongarch.h
index 0e35d4dec..e0c9c9439 100644
--- a/gcc/config/loongarch/loongarch.h
+++ b/gcc/config/loongarch/loongarch.h
@@ -83,9 +83,9 @@ along with GCC; see the file COPYING3. If not see
/* CC1_SPEC is the set of arguments to pass to the compiler proper. */
#undef CC1_SPEC
-#define CC1_SPEC "\
+#define CC1_SPEC "%{,ada:-gnatea} %{m*} \
%{G*} \
-%(subtarget_cc1_spec)"
+%(subtarget_cc1_spec) %{,ada:-gnatez}"
/* Preprocessor specs. */
--
2.33.0
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