From bd3fe0cac583739bc0d7c4b5c8f301bb350abca0 Mon Sep 17 00:00:00 2001
From: Andy Belle-Isle <drumsetmonkey@gmail.com>
Date: Fri, 30 Aug 2019 00:19:31 -0400
Subject: Renamed lib to deps so github will ignore it for language stats
---
lib/LuaJIT/src/host/buildvm_asm.c | 359 --------------------------------------
1 file changed, 359 deletions(-)
delete mode 100644 lib/LuaJIT/src/host/buildvm_asm.c
(limited to 'lib/LuaJIT/src/host/buildvm_asm.c')
diff --git a/lib/LuaJIT/src/host/buildvm_asm.c b/lib/LuaJIT/src/host/buildvm_asm.c
deleted file mode 100644
index 43595b3..0000000
--- a/lib/LuaJIT/src/host/buildvm_asm.c
+++ /dev/null
@@ -1,359 +0,0 @@
-/*
-** LuaJIT VM builder: Assembler source code emitter.
-** Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h
-*/
-
-#include "buildvm.h"
-#include "lj_bc.h"
-
-/* ------------------------------------------------------------------------ */
-
-#if LJ_TARGET_X86ORX64
-/* Emit bytes piecewise as assembler text. */
-static void emit_asm_bytes(BuildCtx *ctx, uint8_t *p, int n)
-{
- int i;
- for (i = 0; i < n; i++) {
- if ((i & 15) == 0)
- fprintf(ctx->fp, "\t.byte %d", p[i]);
- else
- fprintf(ctx->fp, ",%d", p[i]);
- if ((i & 15) == 15) putc('\n', ctx->fp);
- }
- if ((n & 15) != 0) putc('\n', ctx->fp);
-}
-
-/* Emit relocation */
-static void emit_asm_reloc(BuildCtx *ctx, int type, const char *sym)
-{
- switch (ctx->mode) {
- case BUILD_elfasm:
- if (type)
- fprintf(ctx->fp, "\t.long %s-.-4\n", sym);
- else
- fprintf(ctx->fp, "\t.long %s\n", sym);
- break;
- case BUILD_coffasm:
- fprintf(ctx->fp, "\t.def %s; .scl 3; .type 32; .endef\n", sym);
- if (type)
- fprintf(ctx->fp, "\t.long %s-.-4\n", sym);
- else
- fprintf(ctx->fp, "\t.long %s\n", sym);
- break;
- default: /* BUILD_machasm for relative relocations handled below. */
- fprintf(ctx->fp, "\t.long %s\n", sym);
- break;
- }
-}
-
-static const char *const jccnames[] = {
- "jo", "jno", "jb", "jnb", "jz", "jnz", "jbe", "ja",
- "js", "jns", "jpe", "jpo", "jl", "jge", "jle", "jg"
-};
-
-/* Emit x86/x64 text relocations. */
-static void emit_asm_reloc_text(BuildCtx *ctx, uint8_t *cp, int n,
- const char *sym)
-{
- const char *opname = NULL;
- if (--n < 0) goto err;
- if (cp[n] == 0xe8) {
- opname = "call";
- } else if (cp[n] == 0xe9) {
- opname = "jmp";
- } else if (cp[n] >= 0x80 && cp[n] <= 0x8f && n > 0 && cp[n-1] == 0x0f) {
- opname = jccnames[cp[n]-0x80];
- n--;
- } else {
-err:
- fprintf(stderr, "Error: unsupported opcode for %s symbol relocation.\n",
- sym);
- exit(1);
- }
- emit_asm_bytes(ctx, cp, n);
- if (strncmp(sym+(*sym == '_'), LABEL_PREFIX, sizeof(LABEL_PREFIX)-1)) {
- /* Various fixups for external symbols outside of our binary. */
- if (ctx->mode == BUILD_elfasm) {
- if (LJ_32)
- fprintf(ctx->fp, "#if __PIC__\n\t%s lj_wrap_%s\n#else\n", opname, sym);
- fprintf(ctx->fp, "\t%s %s@PLT\n", opname, sym);
- if (LJ_32)
- fprintf(ctx->fp, "#endif\n");
- return;
- } else if (LJ_32 && ctx->mode == BUILD_machasm) {
- fprintf(ctx->fp, "\t%s L%s$stub\n", opname, sym);
- return;
- }
- }
- fprintf(ctx->fp, "\t%s %s\n", opname, sym);
-}
-#else
-/* Emit words piecewise as assembler text. */
-static void emit_asm_words(BuildCtx *ctx, uint8_t *p, int n)
-{
- int i;
- for (i = 0; i < n; i += 4) {
- uint32_t ins = *(uint32_t *)(p+i);
-#if LJ_TARGET_ARM64 && LJ_BE
- ins = lj_bswap(ins); /* ARM64 instructions are always little-endian. */
-#endif
- if ((i & 15) == 0)
- fprintf(ctx->fp, "\t.long 0x%08x", ins);
- else
- fprintf(ctx->fp, ",0x%08x", ins);
- if ((i & 15) == 12) putc('\n', ctx->fp);
- }
- if ((n & 15) != 0) putc('\n', ctx->fp);
-}
-
-/* Emit relocation as part of an instruction. */
-static void emit_asm_wordreloc(BuildCtx *ctx, uint8_t *p, int n,
- const char *sym)
-{
- uint32_t ins;
- emit_asm_words(ctx, p, n-4);
- ins = *(uint32_t *)(p+n-4);
-#if LJ_TARGET_ARM
- if ((ins & 0xff000000u) == 0xfa000000u) {
- fprintf(ctx->fp, "\tblx %s\n", sym);
- } else if ((ins & 0x0e000000u) == 0x0a000000u) {
- fprintf(ctx->fp, "\t%s%.2s %s\n", (ins & 0x01000000u) ? "bl" : "b",
- &"eqnecsccmiplvsvchilsgeltgtle"[2*(ins >> 28)], sym);
- } else {
- fprintf(stderr,
- "Error: unsupported opcode %08x for %s symbol relocation.\n",
- ins, sym);
- exit(1);
- }
-#elif LJ_TARGET_ARM64
- if ((ins >> 26) == 0x25u) {
- fprintf(ctx->fp, "\tbl %s\n", sym);
- } else {
- fprintf(stderr,
- "Error: unsupported opcode %08x for %s symbol relocation.\n",
- ins, sym);
- exit(1);
- }
-#elif LJ_TARGET_PPC
-#if LJ_TARGET_PS3
-#define TOCPREFIX "."
-#else
-#define TOCPREFIX ""
-#endif
- if ((ins >> 26) == 16) {
- fprintf(ctx->fp, "\t%s %d, %d, " TOCPREFIX "%s\n",
- (ins & 1) ? "bcl" : "bc", (ins >> 21) & 31, (ins >> 16) & 31, sym);
- } else if ((ins >> 26) == 18) {
-#if LJ_ARCH_PPC64
- const char *suffix = strchr(sym, '@');
- if (suffix && suffix[1] == 'h') {
- fprintf(ctx->fp, "\taddis 11, 2, %s\n", sym);
- } else if (suffix && suffix[1] == 'l') {
- fprintf(ctx->fp, "\tld 12, %s\n", sym);
- } else
-#endif
- fprintf(ctx->fp, "\t%s " TOCPREFIX "%s\n", (ins & 1) ? "bl" : "b", sym);
- } else {
- fprintf(stderr,
- "Error: unsupported opcode %08x for %s symbol relocation.\n",
- ins, sym);
- exit(1);
- }
-#elif LJ_TARGET_MIPS
- fprintf(stderr,
- "Error: unsupported opcode %08x for %s symbol relocation.\n",
- ins, sym);
- exit(1);
-#else
-#error "missing relocation support for this architecture"
-#endif
-}
-#endif
-
-#if LJ_TARGET_ARM
-#define ELFASM_PX "%%"
-#else
-#define ELFASM_PX "@"
-#endif
-
-/* Emit an assembler label. */
-static void emit_asm_label(BuildCtx *ctx, const char *name, int size, int isfunc)
-{
- switch (ctx->mode) {
- case BUILD_elfasm:
-#if LJ_TARGET_PS3
- if (!strncmp(name, "lj_vm_", 6) &&
- strcmp(name, ctx->beginsym) &&
- !strstr(name, "hook")) {
- fprintf(ctx->fp,
- "\n\t.globl %s\n"
- "\t.section \".opd\",\"aw\"\n"
- "%s:\n"
- "\t.long .%s,.TOC.@tocbase32\n"
- "\t.size %s,8\n"
- "\t.previous\n"
- "\t.globl .%s\n"
- "\t.hidden .%s\n"
- "\t.type .%s, " ELFASM_PX "function\n"
- "\t.size .%s, %d\n"
- ".%s:\n",
- name, name, name, name, name, name, name, name, size, name);
- break;
- }
-#endif
- fprintf(ctx->fp,
- "\n\t.globl %s\n"
- "\t.hidden %s\n"
- "\t.type %s, " ELFASM_PX "%s\n"
- "\t.size %s, %d\n"
- "%s:\n",
- name, name, name, isfunc ? "function" : "object", name, size, name);
- break;
- case BUILD_coffasm:
- fprintf(ctx->fp, "\n\t.globl %s\n", name);
- if (isfunc)
- fprintf(ctx->fp, "\t.def %s; .scl 3; .type 32; .endef\n", name);
- fprintf(ctx->fp, "%s:\n", name);
- break;
- case BUILD_machasm:
- fprintf(ctx->fp,
- "\n\t.private_extern %s\n"
- "\t.no_dead_strip %s\n"
- "%s:\n", name, name, name);
- break;
- default:
- break;
- }
-}
-
-/* Emit alignment. */
-static void emit_asm_align(BuildCtx *ctx, int bits)
-{
- switch (ctx->mode) {
- case BUILD_elfasm:
- case BUILD_coffasm:
- fprintf(ctx->fp, "\t.p2align %d\n", bits);
- break;
- case BUILD_machasm:
- fprintf(ctx->fp, "\t.align %d\n", bits);
- break;
- default:
- break;
- }
-}
-
-/* ------------------------------------------------------------------------ */
-
-/* Emit assembler source code. */
-void emit_asm(BuildCtx *ctx)
-{
- int i, rel;
-
- fprintf(ctx->fp, "\t.file \"buildvm_%s.dasc\"\n", ctx->dasm_arch);
-#if LJ_ARCH_PPC64
- fprintf(ctx->fp, "\t.abiversion 2\n");
-#endif
- fprintf(ctx->fp, "\t.text\n");
- emit_asm_align(ctx, 4);
-
-#if LJ_TARGET_PS3
- emit_asm_label(ctx, ctx->beginsym, ctx->codesz, 0);
-#else
- emit_asm_label(ctx, ctx->beginsym, 0, 0);
-#endif
- if (ctx->mode != BUILD_machasm)
- fprintf(ctx->fp, ".Lbegin:\n");
-
-#if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND
- /* This should really be moved into buildvm_arm.dasc. */
-#if LJ_ARCH_HASFPU
- fprintf(ctx->fp,
- ".fnstart\n"
- ".save {r5, r6, r7, r8, r9, r10, r11, lr}\n"
- ".vsave {d8-d15}\n"
- ".save {r4}\n"
- ".pad #28\n");
-#else
- fprintf(ctx->fp,
- ".fnstart\n"
- ".save {r4, r5, r6, r7, r8, r9, r10, r11, lr}\n"
- ".pad #28\n");
-#endif
-#endif
-#if LJ_TARGET_MIPS
- fprintf(ctx->fp, ".set nomips16\n.abicalls\n.set noreorder\n.set nomacro\n");
-#endif
-
- for (i = rel = 0; i < ctx->nsym; i++) {
- int32_t ofs = ctx->sym[i].ofs;
- int32_t next = ctx->sym[i+1].ofs;
-#if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND && LJ_HASFFI
- if (!strcmp(ctx->sym[i].name, "lj_vm_ffi_call"))
- fprintf(ctx->fp,
- ".globl lj_err_unwind_arm\n"
- ".personality lj_err_unwind_arm\n"
- ".fnend\n"
- ".fnstart\n"
- ".save {r4, r5, r11, lr}\n"
- ".setfp r11, sp\n");
-#endif
- emit_asm_label(ctx, ctx->sym[i].name, next - ofs, 1);
- while (rel < ctx->nreloc && ctx->reloc[rel].ofs <= next) {
- BuildReloc *r = &ctx->reloc[rel];
- int n = r->ofs - ofs;
-#if LJ_TARGET_X86ORX64
- if (r->type != 0 &&
- (ctx->mode == BUILD_elfasm || ctx->mode == BUILD_machasm)) {
- emit_asm_reloc_text(ctx, ctx->code+ofs, n, ctx->relocsym[r->sym]);
- } else {
- emit_asm_bytes(ctx, ctx->code+ofs, n);
- emit_asm_reloc(ctx, r->type, ctx->relocsym[r->sym]);
- }
- ofs += n+4;
-#else
- emit_asm_wordreloc(ctx, ctx->code+ofs, n, ctx->relocsym[r->sym]);
- ofs += n;
-#endif
- rel++;
- }
-#if LJ_TARGET_X86ORX64
- emit_asm_bytes(ctx, ctx->code+ofs, next-ofs);
-#else
- emit_asm_words(ctx, ctx->code+ofs, next-ofs);
-#endif
- }
-
-#if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND
- fprintf(ctx->fp,
-#if !LJ_HASFFI
- ".globl lj_err_unwind_arm\n"
- ".personality lj_err_unwind_arm\n"
-#endif
- ".fnend\n");
-#endif
-
- fprintf(ctx->fp, "\n");
- switch (ctx->mode) {
- case BUILD_elfasm:
-#if !(LJ_TARGET_PS3 || LJ_TARGET_PSVITA)
- fprintf(ctx->fp, "\t.section .note.GNU-stack,\"\"," ELFASM_PX "progbits\n");
-#endif
-#if LJ_TARGET_PPC && !LJ_TARGET_PS3 && !LJ_ABI_SOFTFP
- /* Hard-float ABI. */
- fprintf(ctx->fp, "\t.gnu_attribute 4, 1\n");
-#endif
- /* fallthrough */
- case BUILD_coffasm:
- fprintf(ctx->fp, "\t.ident \"%s\"\n", ctx->dasm_ident);
- break;
- case BUILD_machasm:
- fprintf(ctx->fp,
- "\t.cstring\n"
- "\t.ascii \"%s\\0\"\n", ctx->dasm_ident);
- break;
- default:
- break;
- }
- fprintf(ctx->fp, "\n");
-}
-
--
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