From 0dc221b200b9d3df550e2d760cb396e4cb5f7176 Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <clyne@bitgloo.com>
Date: Sat, 20 Aug 2022 08:44:27 -0400
Subject: submodule LuaJIT; build libs through Makefile
---
lib/LuaJIT/dynasm/dasm_arm.h | 458 -------------------------------------------
1 file changed, 458 deletions(-)
delete mode 100644 lib/LuaJIT/dynasm/dasm_arm.h
(limited to 'lib/LuaJIT/dynasm/dasm_arm.h')
diff --git a/lib/LuaJIT/dynasm/dasm_arm.h b/lib/LuaJIT/dynasm/dasm_arm.h
deleted file mode 100644
index 1d404cc..0000000
--- a/lib/LuaJIT/dynasm/dasm_arm.h
+++ /dev/null
@@ -1,458 +0,0 @@
-/*
-** DynASM ARM encoding engine.
-** Copyright (C) 2005-2017 Mike Pall. All rights reserved.
-** Released under the MIT license. See dynasm.lua for full copyright notice.
-*/
-
-#include <stddef.h>
-#include <stdarg.h>
-#include <string.h>
-#include <stdlib.h>
-
-#define DASM_ARCH "arm"
-
-#ifndef DASM_EXTERN
-#define DASM_EXTERN(a,b,c,d) 0
-#endif
-
-/* Action definitions. */
-enum {
- DASM_STOP, DASM_SECTION, DASM_ESC, DASM_REL_EXT,
- /* The following actions need a buffer position. */
- DASM_ALIGN, DASM_REL_LG, DASM_LABEL_LG,
- /* The following actions also have an argument. */
- DASM_REL_PC, DASM_LABEL_PC,
- DASM_IMM, DASM_IMM12, DASM_IMM16, DASM_IMML8, DASM_IMML12, DASM_IMMV8,
- DASM__MAX
-};
-
-/* Maximum number of section buffer positions for a single dasm_put() call. */
-#define DASM_MAXSECPOS 25
-
-/* DynASM encoder status codes. Action list offset or number are or'ed in. */
-#define DASM_S_OK 0x00000000
-#define DASM_S_NOMEM 0x01000000
-#define DASM_S_PHASE 0x02000000
-#define DASM_S_MATCH_SEC 0x03000000
-#define DASM_S_RANGE_I 0x11000000
-#define DASM_S_RANGE_SEC 0x12000000
-#define DASM_S_RANGE_LG 0x13000000
-#define DASM_S_RANGE_PC 0x14000000
-#define DASM_S_RANGE_REL 0x15000000
-#define DASM_S_UNDEF_LG 0x21000000
-#define DASM_S_UNDEF_PC 0x22000000
-
-/* Macros to convert positions (8 bit section + 24 bit index). */
-#define DASM_POS2IDX(pos) ((pos)&0x00ffffff)
-#define DASM_POS2BIAS(pos) ((pos)&0xff000000)
-#define DASM_SEC2POS(sec) ((sec)<<24)
-#define DASM_POS2SEC(pos) ((pos)>>24)
-#define DASM_POS2PTR(D, pos) (D->sections[DASM_POS2SEC(pos)].rbuf + (pos))
-
-/* Action list type. */
-typedef const unsigned int *dasm_ActList;
-
-/* Per-section structure. */
-typedef struct dasm_Section {
- int *rbuf; /* Biased buffer pointer (negative section bias). */
- int *buf; /* True buffer pointer. */
- size_t bsize; /* Buffer size in bytes. */
- int pos; /* Biased buffer position. */
- int epos; /* End of biased buffer position - max single put. */
- int ofs; /* Byte offset into section. */
-} dasm_Section;
-
-/* Core structure holding the DynASM encoding state. */
-struct dasm_State {
- size_t psize; /* Allocated size of this structure. */
- dasm_ActList actionlist; /* Current actionlist pointer. */
- int *lglabels; /* Local/global chain/pos ptrs. */
- size_t lgsize;
- int *pclabels; /* PC label chains/pos ptrs. */
- size_t pcsize;
- void **globals; /* Array of globals (bias -10). */
- dasm_Section *section; /* Pointer to active section. */
- size_t codesize; /* Total size of all code sections. */
- int maxsection; /* 0 <= sectionidx < maxsection. */
- int status; /* Status code. */
- dasm_Section sections[1]; /* All sections. Alloc-extended. */
-};
-
-/* The size of the core structure depends on the max. number of sections. */
-#define DASM_PSZ(ms) (sizeof(dasm_State)+(ms-1)*sizeof(dasm_Section))
-
-
-/* Initialize DynASM state. */
-void dasm_init(Dst_DECL, int maxsection)
-{
- dasm_State *D;
- size_t psz = 0;
- int i;
- Dst_REF = NULL;
- DASM_M_GROW(Dst, struct dasm_State, Dst_REF, psz, DASM_PSZ(maxsection));
- D = Dst_REF;
- D->psize = psz;
- D->lglabels = NULL;
- D->lgsize = 0;
- D->pclabels = NULL;
- D->pcsize = 0;
- D->globals = NULL;
- D->maxsection = maxsection;
- for (i = 0; i < maxsection; i++) {
- D->sections[i].buf = NULL; /* Need this for pass3. */
- D->sections[i].rbuf = D->sections[i].buf - DASM_SEC2POS(i);
- D->sections[i].bsize = 0;
- D->sections[i].epos = 0; /* Wrong, but is recalculated after resize. */
- }
-}
-
-/* Free DynASM state. */
-void dasm_free(Dst_DECL)
-{
- dasm_State *D = Dst_REF;
- int i;
- for (i = 0; i < D->maxsection; i++)
- if (D->sections[i].buf)
- DASM_M_FREE(Dst, D->sections[i].buf, D->sections[i].bsize);
- if (D->pclabels) DASM_M_FREE(Dst, D->pclabels, D->pcsize);
- if (D->lglabels) DASM_M_FREE(Dst, D->lglabels, D->lgsize);
- DASM_M_FREE(Dst, D, D->psize);
-}
-
-/* Setup global label array. Must be called before dasm_setup(). */
-void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl)
-{
- dasm_State *D = Dst_REF;
- D->globals = gl - 10; /* Negative bias to compensate for locals. */
- DASM_M_GROW(Dst, int, D->lglabels, D->lgsize, (10+maxgl)*sizeof(int));
-}
-
-/* Grow PC label array. Can be called after dasm_setup(), too. */
-void dasm_growpc(Dst_DECL, unsigned int maxpc)
-{
- dasm_State *D = Dst_REF;
- size_t osz = D->pcsize;
- DASM_M_GROW(Dst, int, D->pclabels, D->pcsize, maxpc*sizeof(int));
- memset((void *)(((unsigned char *)D->pclabels)+osz), 0, D->pcsize-osz);
-}
-
-/* Setup encoder. */
-void dasm_setup(Dst_DECL, const void *actionlist)
-{
- dasm_State *D = Dst_REF;
- int i;
- D->actionlist = (dasm_ActList)actionlist;
- D->status = DASM_S_OK;
- D->section = &D->sections[0];
- memset((void *)D->lglabels, 0, D->lgsize);
- if (D->pclabels) memset((void *)D->pclabels, 0, D->pcsize);
- for (i = 0; i < D->maxsection; i++) {
- D->sections[i].pos = DASM_SEC2POS(i);
- D->sections[i].ofs = 0;
- }
-}
-
-
-#ifdef DASM_CHECKS
-#define CK(x, st) \
- do { if (!(x)) { \
- D->status = DASM_S_##st|(p-D->actionlist-1); return; } } while (0)
-#define CKPL(kind, st) \
- do { if ((size_t)((char *)pl-(char *)D->kind##labels) >= D->kind##size) { \
- D->status = DASM_S_RANGE_##st|(p-D->actionlist-1); return; } } while (0)
-#else
-#define CK(x, st) ((void)0)
-#define CKPL(kind, st) ((void)0)
-#endif
-
-static int dasm_imm12(unsigned int n)
-{
- int i;
- for (i = 0; i < 16; i++, n = (n << 2) | (n >> 30))
- if (n <= 255) return (int)(n + (i << 8));
- return -1;
-}
-
-/* Pass 1: Store actions and args, link branches/labels, estimate offsets. */
-void dasm_put(Dst_DECL, int start, ...)
-{
- va_list ap;
- dasm_State *D = Dst_REF;
- dasm_ActList p = D->actionlist + start;
- dasm_Section *sec = D->section;
- int pos = sec->pos, ofs = sec->ofs;
- int *b;
-
- if (pos >= sec->epos) {
- DASM_M_GROW(Dst, int, sec->buf, sec->bsize,
- sec->bsize + 2*DASM_MAXSECPOS*sizeof(int));
- sec->rbuf = sec->buf - DASM_POS2BIAS(pos);
- sec->epos = (int)sec->bsize/sizeof(int) - DASM_MAXSECPOS+DASM_POS2BIAS(pos);
- }
-
- b = sec->rbuf;
- b[pos++] = start;
-
- va_start(ap, start);
- while (1) {
- unsigned int ins = *p++;
- unsigned int action = (ins >> 16);
- if (action >= DASM__MAX) {
- ofs += 4;
- } else {
- int *pl, n = action >= DASM_REL_PC ? va_arg(ap, int) : 0;
- switch (action) {
- case DASM_STOP: goto stop;
- case DASM_SECTION:
- n = (ins & 255); CK(n < D->maxsection, RANGE_SEC);
- D->section = &D->sections[n]; goto stop;
- case DASM_ESC: p++; ofs += 4; break;
- case DASM_REL_EXT: break;
- case DASM_ALIGN: ofs += (ins & 255); b[pos++] = ofs; break;
- case DASM_REL_LG:
- n = (ins & 2047) - 10; pl = D->lglabels + n;
- /* Bkwd rel or global. */
- if (n >= 0) { CK(n>=10||*pl<0, RANGE_LG); CKPL(lg, LG); goto putrel; }
- pl += 10; n = *pl;
- if (n < 0) n = 0; /* Start new chain for fwd rel if label exists. */
- goto linkrel;
- case DASM_REL_PC:
- pl = D->pclabels + n; CKPL(pc, PC);
- putrel:
- n = *pl;
- if (n < 0) { /* Label exists. Get label pos and store it. */
- b[pos] = -n;
- } else {
- linkrel:
- b[pos] = n; /* Else link to rel chain, anchored at label. */
- *pl = pos;
- }
- pos++;
- break;
- case DASM_LABEL_LG:
- pl = D->lglabels + (ins & 2047) - 10; CKPL(lg, LG); goto putlabel;
- case DASM_LABEL_PC:
- pl = D->pclabels + n; CKPL(pc, PC);
- putlabel:
- n = *pl; /* n > 0: Collapse rel chain and replace with label pos. */
- while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = pos;
- }
- *pl = -pos; /* Label exists now. */
- b[pos++] = ofs; /* Store pass1 offset estimate. */
- break;
- case DASM_IMM:
- case DASM_IMM16:
-#ifdef DASM_CHECKS
- CK((n & ((1<<((ins>>10)&31))-1)) == 0, RANGE_I);
- if ((ins & 0x8000))
- CK(((n + (1<<(((ins>>5)&31)-1)))>>((ins>>5)&31)) == 0, RANGE_I);
- else
- CK((n>>((ins>>5)&31)) == 0, RANGE_I);
-#endif
- b[pos++] = n;
- break;
- case DASM_IMMV8:
- CK((n & 3) == 0, RANGE_I);
- n >>= 2;
- /* fallthrough */
- case DASM_IMML8:
- case DASM_IMML12:
- CK(n >= 0 ? ((n>>((ins>>5)&31)) == 0) :
- (((-n)>>((ins>>5)&31)) == 0), RANGE_I);
- b[pos++] = n;
- break;
- case DASM_IMM12:
- CK(dasm_imm12((unsigned int)n) != -1, RANGE_I);
- b[pos++] = n;
- break;
- }
- }
- }
-stop:
- va_end(ap);
- sec->pos = pos;
- sec->ofs = ofs;
-}
-#undef CK
-
-/* Pass 2: Link sections, shrink aligns, fix label offsets. */
-int dasm_link(Dst_DECL, size_t *szp)
-{
- dasm_State *D = Dst_REF;
- int secnum;
- int ofs = 0;
-
-#ifdef DASM_CHECKS
- *szp = 0;
- if (D->status != DASM_S_OK) return D->status;
- {
- int pc;
- for (pc = 0; pc*sizeof(int) < D->pcsize; pc++)
- if (D->pclabels[pc] > 0) return DASM_S_UNDEF_PC|pc;
- }
-#endif
-
- { /* Handle globals not defined in this translation unit. */
- int idx;
- for (idx = 20; idx*sizeof(int) < D->lgsize; idx++) {
- int n = D->lglabels[idx];
- /* Undefined label: Collapse rel chain and replace with marker (< 0). */
- while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = -idx; }
- }
- }
-
- /* Combine all code sections. No support for data sections (yet). */
- for (secnum = 0; secnum < D->maxsection; secnum++) {
- dasm_Section *sec = D->sections + secnum;
- int *b = sec->rbuf;
- int pos = DASM_SEC2POS(secnum);
- int lastpos = sec->pos;
-
- while (pos != lastpos) {
- dasm_ActList p = D->actionlist + b[pos++];
- while (1) {
- unsigned int ins = *p++;
- unsigned int action = (ins >> 16);
- switch (action) {
- case DASM_STOP: case DASM_SECTION: goto stop;
- case DASM_ESC: p++; break;
- case DASM_REL_EXT: break;
- case DASM_ALIGN: ofs -= (b[pos++] + ofs) & (ins & 255); break;
- case DASM_REL_LG: case DASM_REL_PC: pos++; break;
- case DASM_LABEL_LG: case DASM_LABEL_PC: b[pos++] += ofs; break;
- case DASM_IMM: case DASM_IMM12: case DASM_IMM16:
- case DASM_IMML8: case DASM_IMML12: case DASM_IMMV8: pos++; break;
- }
- }
- stop: (void)0;
- }
- ofs += sec->ofs; /* Next section starts right after current section. */
- }
-
- D->codesize = ofs; /* Total size of all code sections */
- *szp = ofs;
- return DASM_S_OK;
-}
-
-#ifdef DASM_CHECKS
-#define CK(x, st) \
- do { if (!(x)) return DASM_S_##st|(p-D->actionlist-1); } while (0)
-#else
-#define CK(x, st) ((void)0)
-#endif
-
-/* Pass 3: Encode sections. */
-int dasm_encode(Dst_DECL, void *buffer)
-{
- dasm_State *D = Dst_REF;
- char *base = (char *)buffer;
- unsigned int *cp = (unsigned int *)buffer;
- int secnum;
-
- /* Encode all code sections. No support for data sections (yet). */
- for (secnum = 0; secnum < D->maxsection; secnum++) {
- dasm_Section *sec = D->sections + secnum;
- int *b = sec->buf;
- int *endb = sec->rbuf + sec->pos;
-
- while (b != endb) {
- dasm_ActList p = D->actionlist + *b++;
- while (1) {
- unsigned int ins = *p++;
- unsigned int action = (ins >> 16);
- int n = (action >= DASM_ALIGN && action < DASM__MAX) ? *b++ : 0;
- switch (action) {
- case DASM_STOP: case DASM_SECTION: goto stop;
- case DASM_ESC: *cp++ = *p++; break;
- case DASM_REL_EXT:
- n = DASM_EXTERN(Dst, (unsigned char *)cp, (ins&2047), !(ins&2048));
- goto patchrel;
- case DASM_ALIGN:
- ins &= 255; while ((((char *)cp - base) & ins)) *cp++ = 0xe1a00000;
- break;
- case DASM_REL_LG:
- CK(n >= 0, UNDEF_LG);
- /* fallthrough */
- case DASM_REL_PC:
- CK(n >= 0, UNDEF_PC);
- n = *DASM_POS2PTR(D, n) - (int)((char *)cp - base) - 4;
- patchrel:
- if ((ins & 0x800) == 0) {
- CK((n & 3) == 0 && ((n+0x02000000) >> 26) == 0, RANGE_REL);
- cp[-1] |= ((n >> 2) & 0x00ffffff);
- } else if ((ins & 0x1000)) {
- CK((n & 3) == 0 && -256 <= n && n <= 256, RANGE_REL);
- goto patchimml8;
- } else if ((ins & 0x2000) == 0) {
- CK((n & 3) == 0 && -4096 <= n && n <= 4096, RANGE_REL);
- goto patchimml;
- } else {
- CK((n & 3) == 0 && -1020 <= n && n <= 1020, RANGE_REL);
- n >>= 2;
- goto patchimml;
- }
- break;
- case DASM_LABEL_LG:
- ins &= 2047; if (ins >= 20) D->globals[ins-10] = (void *)(base + n);
- break;
- case DASM_LABEL_PC: break;
- case DASM_IMM:
- cp[-1] |= ((n>>((ins>>10)&31)) & ((1<<((ins>>5)&31))-1)) << (ins&31);
- break;
- case DASM_IMM12:
- cp[-1] |= dasm_imm12((unsigned int)n);
- break;
- case DASM_IMM16:
- cp[-1] |= ((n & 0xf000) << 4) | (n & 0x0fff);
- break;
- case DASM_IMML8: patchimml8:
- cp[-1] |= n >= 0 ? (0x00800000 | (n & 0x0f) | ((n & 0xf0) << 4)) :
- ((-n & 0x0f) | ((-n & 0xf0) << 4));
- break;
- case DASM_IMML12: case DASM_IMMV8: patchimml:
- cp[-1] |= n >= 0 ? (0x00800000 | n) : (-n);
- break;
- default: *cp++ = ins; break;
- }
- }
- stop: (void)0;
- }
- }
-
- if (base + D->codesize != (char *)cp) /* Check for phase errors. */
- return DASM_S_PHASE;
- return DASM_S_OK;
-}
-#undef CK
-
-/* Get PC label offset. */
-int dasm_getpclabel(Dst_DECL, unsigned int pc)
-{
- dasm_State *D = Dst_REF;
- if (pc*sizeof(int) < D->pcsize) {
- int pos = D->pclabels[pc];
- if (pos < 0) return *DASM_POS2PTR(D, -pos);
- if (pos > 0) return -1; /* Undefined. */
- }
- return -2; /* Unused or out of range. */
-}
-
-#ifdef DASM_CHECKS
-/* Optional sanity checker to call between isolated encoding steps. */
-int dasm_checkstep(Dst_DECL, int secmatch)
-{
- dasm_State *D = Dst_REF;
- if (D->status == DASM_S_OK) {
- int i;
- for (i = 1; i <= 9; i++) {
- if (D->lglabels[i] > 0) { D->status = DASM_S_UNDEF_LG|i; break; }
- D->lglabels[i] = 0;
- }
- }
- if (D->status == DASM_S_OK && secmatch >= 0 &&
- D->section != &D->sections[secmatch])
- D->status = DASM_S_MATCH_SEC|(D->section-D->sections);
- return D->status;
-}
-#endif
-
--
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