mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-05-17 21:02:25 +02:00
Change headers and files to be named "lightening" instead of "jit"
This improves integration with other projects. Like for example Guile already has files named jit.c and jit.h; it's easier to manage if lightening uses its own file names.
This commit is contained in:
Andy Wingo
parent
573af9c19b
commit
f348b8ed6d
48 changed files with 20 additions and 20 deletions
490
jit/jit.c
490
jit/jit.c
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@ -1,490 +0,0 @@
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/*
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* Copyright (C) 2012-2019 Free Software Foundation, Inc.
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*
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* This file is part of GNU lightning.
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*
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* GNU lightning is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU lightning is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* Authors:
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* Paulo Cesar Pereira de Andrade
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*/
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#if HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <assert.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdio.h>
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#include <sys/mman.h>
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#include "../jit.h"
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#if defined(__GNUC__)
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# define maybe_unused __attribute__ ((unused))
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#else
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# define maybe_unused /**/
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#endif
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#define rc(value) jit_class_##value
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#define rn(reg) (jit_regno(_rvs[jit_regno(reg.bits)].spec))
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#if defined(__i386__) || defined(__x86_64__)
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# define JIT_SP JIT_GPR(_RSP)
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# define JIT_RET JIT_GPR(_RAX)
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# if __X32
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# define JIT_FRET JIT_FPR(_ST0)
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# else
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# if __CYGWIN__
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# define JIT_RA0 JIT_GPR(_RCX)
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# else
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# define JIT_RA0 JIT_GPR(_RDI)
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# endif
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# define JIT_FA0 JIT_FPR(_XMM0)
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# define JIT_FRET JIT_FPR(_XMM0)
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# endif
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#elif defined(__mips__)
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# define JIT_RA0 JIT_GPR(_A0)
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# define JIT_FA0 JIT_FPR(_F12)
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# define JIT_SP JIT_GPR(_SP)
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# define JIT_RET JIT_GPR(_V0)
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# define JIT_FRET JIT_FPR(_F0)
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#elif defined(__arm__)
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# define JIT_RA0 JIT_GPR(_R0)
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# define JIT_FA0 JIT_FPR(_D0)
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# define JIT_SP JIT_GPR(_R13)
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# define JIT_RET JIT_GPR(_R0)
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# if defined(__ARM_PCS_VFP)
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# define JIT_FRET JIT_FPR(_D0)
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# else
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# define JIT_FRET JIT_FPR(_R0)
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# endif
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#elif defined(__ppc__) || defined(__powerpc__)
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# define JIT_RA0 JIT_GPR(_R3)
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# define JIT_FA0 JIT_FPR(_F1)
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# define JIT_SP JIT_GPR(_R1)
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# define JIT_RET JIT_GPR(_R3)
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# define JIT_FRET JIT_FPR(_F1)
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#elif defined(__sparc__)
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# define JIT_SP JIT_GPR(_SP)
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# define JIT_RET JIT_GPR(_I0)
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# define JIT_FRET JIT_FPR(_F0)
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#elif defined(__ia64__)
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# define JIT_SP JIT_GPR(_R12)
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# define JIT_RET JIT_GPR(_R8)
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# define JIT_FRET JIT_FPR(_F8)
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#elif defined(__hppa__)
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# define JIT_SP JIT_GPR(_R30)
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# define JIT_RET JIT_GPR(_R28)
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# define JIT_FRET JIT_FPR(_F4)
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#elif defined(__aarch64__)
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# define JIT_RA0 JIT_GPR(_R0)
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# define JIT_FA0 JIT_FPR(_V0)
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# define JIT_SP JIT_GPR(_SP)
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# define JIT_RET JIT_GPR(_R0)
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# define JIT_FRET JIT_FPR(_V0)
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#elif defined(__s390__) || defined(__s390x__)
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# define JIT_SP JIT_GPR(_R15)
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# define JIT_RET JIT_GPR(_R2)
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# define JIT_FRET JIT_FPR(_F0)
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#elif defined(__alpha__)
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# define JIT_SP JIT_GPR(_SP)
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# define JIT_RET JIT_GPR(_V0)
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# define JIT_FRET JIT_FPR(_F0)
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#endif
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/*
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* Private jit_class bitmasks
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*/
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#define jit_class_named 0x00400000 /* hit must be the named reg */
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#define jit_class_nospill 0x00800000 /* hint to fail if need spill */
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#define jit_class_sft 0x01000000 /* not a hardware register */
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#define jit_class_rg8 0x04000000 /* x86 8 bits */
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#define jit_class_xpr 0x80000000 /* float / vector */
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/* Used on sparc64 where %f0-%f31 can be encode for single float
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* but %f32 to %f62 only as double precision */
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#define jit_class_sng 0x10000000 /* Single precision float */
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#define jit_class_dbl 0x20000000 /* Only double precision float */
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#define jit_regno_patch 0x00008000 /* this is a register
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* returned by a "user" call
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* to jit_get_reg() */
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union jit_pc
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{
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uint8_t *uc;
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uint16_t *us;
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uint32_t *ui;
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uint64_t *ul;
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intptr_t w;
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uintptr_t uw;
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};
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struct jit_state
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{
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union jit_pc pc;
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uint8_t *start;
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uint8_t *last_instruction_start;
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uint8_t *limit;
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uint8_t temp_gpr_saved;
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uint8_t temp_fpr_saved;
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uint8_t overflow;
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};
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enum jit_reloc_flags
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{
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JIT_RELOC_CAN_SHORTEN = 1<<0
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};
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struct jit_register
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{
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jit_reg_t spec;
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char *name;
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};
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typedef struct jit_register jit_register_t;
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static const jit_register_t _rvs[];
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#define jit_regload_reload 0 /* convert to reload */
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#define jit_regload_delete 1 /* just remove node */
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#define jit_regload_isdead 2 /* delete and unset live bit */
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#define ASSERT(x) do { if (!(x)) abort(); } while (0)
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#if defined(__GNUC__)
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# define UNLIKELY(exprn) __builtin_expect(exprn, 0)
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#else
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# define UNLIKELY(exprn) exprn
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#endif
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static jit_bool_t jit_get_cpu(void);
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static jit_bool_t jit_init(jit_state_t *);
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static void jit_flush(void *fptr, void *tptr);
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static void jit_try_shorten(jit_state_t *_jit, jit_reloc_t reloc);
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jit_bool_t
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init_jit(void)
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{
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return jit_get_cpu ();
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}
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jit_state_t *
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jit_new_state(void)
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{
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jit_state_t *_jit = malloc (sizeof (*_jit));
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if (!_jit)
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abort ();
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memset(_jit, 0, sizeof (*_jit));
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if (!jit_init (_jit));
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return _jit;
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}
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void
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jit_destroy_state(jit_state_t *_jit)
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{
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free (_jit);
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}
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jit_pointer_t
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jit_address(jit_state_t *_jit)
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{
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return _jit->pc.uc;
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}
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void
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jit_begin(jit_state_t *_jit, uint8_t* buf, size_t length)
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{
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ASSERT (!_jit->start);
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_jit->start = buf;
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_jit->limit = buf + length;
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jit_reset(_jit);
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}
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jit_bool_t
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jit_has_overflow(jit_state_t *_jit)
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{
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ASSERT (_jit->start);
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return _jit->overflow;
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}
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void
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jit_reset(jit_state_t *_jit)
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{
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ASSERT (_jit->start);
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_jit->pc.uc = _jit->start;
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_jit->overflow = 0;
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}
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void*
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jit_end(jit_state_t *_jit, size_t *length)
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{
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uint8_t *code = _jit->start;
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uint8_t *end = _jit->pc.uc;
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ASSERT (code);
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ASSERT (code <= end);
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ASSERT (end <= _jit->limit);
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ASSERT (!_jit->overflow);
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jit_flush (code, end);
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if (length) {
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*length = end - code;
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}
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_jit->pc.uc = _jit->start = _jit->limit = NULL;
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_jit->overflow = 0;
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return code;
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}
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static int
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is_power_of_two (unsigned x)
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{
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return x && !(x & (x-1));
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}
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void
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jit_align(jit_state_t *_jit, unsigned align)
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{
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ASSERT (is_power_of_two (align));
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uintptr_t here = _jit->pc.w;
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uintptr_t there = (here + align - 1) & ~(align - 1);
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if (there - here)
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jit_nop(_jit, there - here);
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}
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static inline void emit_u8(jit_state_t *_jit, uint8_t u8) {
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if (UNLIKELY(_jit->pc.uc + 1 > _jit->limit)) {
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_jit->overflow = 1;
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} else {
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*_jit->pc.uc++ = u8;
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}
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}
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static inline void emit_u16(jit_state_t *_jit, uint16_t u16) {
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if (UNLIKELY(_jit->pc.us + 1 > (uint16_t*)_jit->limit)) {
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_jit->overflow = 1;
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} else {
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*_jit->pc.us++ = u16;
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}
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}
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static inline void emit_u32(jit_state_t *_jit, uint32_t u32) {
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if (UNLIKELY(_jit->pc.ui + 1 > (uint32_t*)_jit->limit)) {
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_jit->overflow = 1;
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} else {
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*_jit->pc.ui++ = u32;
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}
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}
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static inline void emit_u64(jit_state_t *_jit, uint64_t u64) {
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if (UNLIKELY(_jit->pc.ul + 1 > (uint64_t*)_jit->limit)) {
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_jit->overflow = 1;
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} else {
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*_jit->pc.ul++ = u64;
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}
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}
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static inline jit_reloc_t
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jit_reloc (jit_state_t *_jit, enum jit_reloc_kind kind,
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uint8_t inst_start_offset, uint16_t flags)
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{
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jit_reloc_t ret;
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ret.kind = kind;
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ret.inst_start_offset = inst_start_offset;
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ret.flags = 0;
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ret.offset = _jit->pc.uc - _jit->start;
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switch (kind)
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{
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case JIT_RELOC_ABSOLUTE:
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if (sizeof(intptr_t) == 4)
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emit_u32 (_jit, 0);
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else
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emit_u64 (_jit, 0);
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break;
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case JIT_RELOC_REL8:
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emit_u8 (_jit, 0);
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break;
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case JIT_RELOC_REL16:
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emit_u16 (_jit, 0);
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break;
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case JIT_RELOC_REL32:
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emit_u32 (_jit, 0);
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break;
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case JIT_RELOC_REL64:
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emit_u64 (_jit, 0);
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break;
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default:
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abort ();
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}
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return ret;
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}
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void
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jit_patch_here(jit_state_t *_jit, jit_reloc_t reloc)
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{
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jit_patch_there (_jit, reloc, jit_address (_jit));
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}
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void
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jit_patch_there(jit_state_t* _jit, jit_reloc_t reloc, jit_pointer_t addr)
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{
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if (_jit->overflow)
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return;
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union jit_pc loc;
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loc.uc = _jit->start + reloc.offset;
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ptrdiff_t diff;
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switch (reloc.kind)
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{
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case JIT_RELOC_ABSOLUTE:
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if (sizeof(diff) == 4)
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*loc.ui = (uintptr_t)addr;
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else
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*loc.ul = (uintptr_t)addr;
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if (loc.uc + sizeof(diff) == _jit->pc.uc &&
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(reloc.flags & JIT_RELOC_CAN_SHORTEN))
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jit_try_shorten (_jit, reloc);
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break;
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case JIT_RELOC_REL8:
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diff = ((uint8_t*)addr) - (loc.uc + 1);
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ASSERT (INT8_MIN <= diff && diff <= INT8_MAX);
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*loc.uc = diff;
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break;
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case JIT_RELOC_REL16:
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diff = ((uint8_t*)addr) - (loc.uc + 2);
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ASSERT (INT16_MIN <= diff && diff <= INT16_MAX);
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*loc.us = diff;
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if ((loc.uc + 1) == _jit->pc.uc && (reloc.flags & JIT_RELOC_CAN_SHORTEN))
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jit_try_shorten (_jit, reloc);
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break;
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case JIT_RELOC_REL32:
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diff = ((uint8_t*)addr) - (loc.uc + 4);
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ASSERT (INT32_MIN <= diff && diff <= INT32_MAX);
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*loc.ui = diff;
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if ((loc.ui + 1) == _jit->pc.ui && (reloc.flags & JIT_RELOC_CAN_SHORTEN))
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jit_try_shorten (_jit, reloc);
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break;
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case JIT_RELOC_REL64:
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diff = ((uint8_t*)addr) - (loc.uc + 8);
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*loc.ul = diff;
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if ((loc.ul + 1) == _jit->pc.ul && (reloc.flags & JIT_RELOC_CAN_SHORTEN))
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jit_try_shorten (_jit, reloc);
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break;
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default:
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abort ();
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}
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}
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#if defined(__i386__) || defined(__x86_64__)
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# include "x86.c"
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#elif defined(__mips__)
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# include "mips.c"
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#elif defined(__arm__)
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# include "arm.c"
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#elif defined(__ppc__) || defined(__powerpc__)
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# include "ppc.c"
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#elif defined(__sparc__)
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# include "sparc.c"
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#elif defined(__ia64__)
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# include "ia64.c"
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#elif defined(__hppa__)
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# include "hppa.c"
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#elif defined(__aarch64__)
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# include "aarch64.c"
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#elif defined(__s390__) || defined(__s390x__)
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# include "s390.c"
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#elif defined(__alpha__)
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# include "alpha.c"
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#endif
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#define JIT_IMPL_0(stem, ret) \
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ret jit_##stem (jit_state_t* _jit) \
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{ \
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return stem(_jit); \
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}
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#define JIT_IMPL_1(stem, ret, ta) \
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ret jit_##stem (jit_state_t* _jit, jit_##ta##_t a) \
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{ \
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return stem(_jit, unwrap_##ta(a)); \
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}
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#define JIT_IMPL_2(stem, ret, ta, tb) \
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ret jit_##stem (jit_state_t* _jit, jit_##ta##_t a, jit_##tb##_t b) \
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{ \
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return stem(_jit, unwrap_##ta(a), unwrap_##tb(b)); \
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}
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#define JIT_IMPL_3(stem, ret, ta, tb, tc) \
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ret jit_##stem (jit_state_t* _jit, jit_##ta##_t a, jit_##tb##_t b, jit_##tc##_t c) \
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{ \
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return stem(_jit, unwrap_##ta(a), unwrap_##tb(b), unwrap_##tc(c)); \
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}
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#define JIT_IMPL_4(stem, ret, ta, tb, tc, td) \
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ret jit_##stem (jit_state_t* _jit, jit_##ta##_t a, jit_##tb##_t b, jit_##tc##_t c, jit_##td##_t d) \
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{ \
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return stem(_jit, unwrap_##ta(a), unwrap_##tb(b), unwrap_##tc(c), unwrap_##td(d)); \
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}
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#define JIT_IMPL_RFF__(stem) JIT_IMPL_2(stem, jit_reloc_t, fpr, fpr)
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#define JIT_IMPL_RGG__(stem) JIT_IMPL_2(stem, jit_reloc_t, gpr, gpr)
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#define JIT_IMPL_RG___(stem) JIT_IMPL_1(stem, jit_reloc_t, gpr)
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#define JIT_IMPL_RGi__(stem) JIT_IMPL_2(stem, jit_reloc_t, gpr, imm)
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#define JIT_IMPL_RGu__(stem) JIT_IMPL_2(stem, jit_reloc_t, gpr, uimm)
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#define JIT_IMPL_R____(stem) JIT_IMPL_0(stem, jit_reloc_t)
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#define JIT_IMPL__FFF_(stem) JIT_IMPL_3(stem, void, fpr, fpr, fpr)
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#define JIT_IMPL__FF__(stem) JIT_IMPL_2(stem, void, fpr, fpr)
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#define JIT_IMPL__FGG_(stem) JIT_IMPL_3(stem, void, fpr, gpr, gpr)
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#define JIT_IMPL__FG__(stem) JIT_IMPL_2(stem, void, fpr, gpr)
|
||||
#define JIT_IMPL__FGo_(stem) JIT_IMPL_3(stem, void, fpr, gpr, off)
|
||||
#define JIT_IMPL__F___(stem) JIT_IMPL_1(stem, void, fpr)
|
||||
#define JIT_IMPL__Fd__(stem) JIT_IMPL_2(stem, void, fpr, float64)
|
||||
#define JIT_IMPL__Ff__(stem) JIT_IMPL_2(stem, void, fpr, float32)
|
||||
#define JIT_IMPL__Fp__(stem) JIT_IMPL_2(stem, void, fpr, pointer)
|
||||
#define JIT_IMPL__GF__(stem) JIT_IMPL_2(stem, void, gpr, fpr)
|
||||
#define JIT_IMPL__GGF_(stem) JIT_IMPL_3(stem, void, gpr, gpr, fpr)
|
||||
#define JIT_IMPL__GGGG(stem) JIT_IMPL_4(stem, void, gpr, gpr, gpr, gpr)
|
||||
#define JIT_IMPL__GGG_(stem) JIT_IMPL_3(stem, void, gpr, gpr, gpr)
|
||||
#define JIT_IMPL__GGGi(stem) JIT_IMPL_4(stem, void, gpr, gpr, gpr, imm)
|
||||
#define JIT_IMPL__GGGu(stem) JIT_IMPL_4(stem, void, gpr, gpr, gpr, uimm)
|
||||
#define JIT_IMPL__GG__(stem) JIT_IMPL_2(stem, void, gpr, gpr)
|
||||
#define JIT_IMPL__GGi_(stem) JIT_IMPL_3(stem, void, gpr, gpr, imm)
|
||||
#define JIT_IMPL__GGo_(stem) JIT_IMPL_3(stem, void, gpr, gpr, off)
|
||||
#define JIT_IMPL__GGu_(stem) JIT_IMPL_3(stem, void, gpr, gpr, uimm)
|
||||
#define JIT_IMPL__G___(stem) JIT_IMPL_1(stem, void, gpr)
|
||||
#define JIT_IMPL__Gi__(stem) JIT_IMPL_2(stem, void, gpr, imm)
|
||||
#define JIT_IMPL__Gp__(stem) JIT_IMPL_2(stem, void, gpr, pointer)
|
||||
#define JIT_IMPL______(stem) JIT_IMPL_0(stem, void)
|
||||
#define JIT_IMPL__i___(stem) JIT_IMPL_1(stem, void, imm)
|
||||
#define JIT_IMPL__oGF_(stem) JIT_IMPL_3(stem, void, off, gpr, fpr)
|
||||
#define JIT_IMPL__oGG_(stem) JIT_IMPL_3(stem, void, off, gpr, gpr)
|
||||
#define JIT_IMPL__pF__(stem) JIT_IMPL_2(stem, void, pointer, fpr)
|
||||
#define JIT_IMPL__pG__(stem) JIT_IMPL_2(stem, void, pointer, gpr)
|
||||
#define JIT_IMPL__p___(stem) JIT_IMPL_1(stem, void, pointer)
|
||||
|
||||
#define unwrap_gpr(r) rn(r)
|
||||
#define unwrap_fpr(r) rn(r)
|
||||
#define unwrap_imm(i) i
|
||||
#define unwrap_uimm(u) u
|
||||
#define unwrap_off(o) o
|
||||
#define unwrap_pointer(p) ((uintptr_t) p)
|
||||
#define unwrap_float32(f) f
|
||||
#define unwrap_float64(d) d
|
||||
|
||||
#define IMPL_INSTRUCTION(kind, stem) JIT_IMPL_##kind(stem)
|
||||
FOR_EACH_INSTRUCTION(IMPL_INSTRUCTION)
|
||||
#undef IMPL_INSTRUCTION
|
||||
Loading…
Add table
Add a link
Reference in a new issue