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annotate third_party/luajit/src/host/buildvm_asm.c @ 279:b3b547563ec7

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Add Google connector service and agent wiki Implement the C/Seobeo Google Drive and Gmail connector with encrypted OAuth storage, Zenbu authentication, browser testing, AI tool discovery, chunked HTTP decoding, and Bazel coverage. Consolidate repository guidance into progressive wiki documentation and enforce arena-first allocation for new first-party C code. Co-authored-by: Copilot <[email protected]> Copilot-Session: 84c338fd-0939-4bb3-b7f3-1062eb213e5d
author MrJuneJune <me@mrjunejune.com>
date Mon, 17 Aug 2026 22:22:36 -0700
parents 94705b5986b3
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
178
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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1 /*
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2 ** LuaJIT VM builder: Assembler source code emitter.
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3 ** Copyright (C) 2005-2023 Mike Pall. See Copyright Notice in luajit.h
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4 */
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5
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6 #include "buildvm.h"
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7 #include "lj_bc.h"
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8
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9 /* ------------------------------------------------------------------------ */
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10
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11 #if LJ_TARGET_X86ORX64
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12 /* Emit bytes piecewise as assembler text. */
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13 static void emit_asm_bytes(BuildCtx *ctx, uint8_t *p, int n)
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14 {
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15 int i;
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16 for (i = 0; i < n; i++) {
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17 if ((i & 15) == 0)
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18 fprintf(ctx->fp, "\t.byte %d", p[i]);
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19 else
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20 fprintf(ctx->fp, ",%d", p[i]);
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21 if ((i & 15) == 15) putc('\n', ctx->fp);
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22 }
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23 if ((n & 15) != 0) putc('\n', ctx->fp);
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24 }
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25
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26 /* Emit relocation */
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27 static void emit_asm_reloc(BuildCtx *ctx, int type, const char *sym)
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28 {
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29 switch (ctx->mode) {
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30 case BUILD_elfasm:
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31 if (type)
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32 fprintf(ctx->fp, "\t.long %s-.-4\n", sym);
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33 else
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34 fprintf(ctx->fp, "\t.long %s\n", sym);
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35 break;
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36 case BUILD_coffasm:
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37 fprintf(ctx->fp, "\t.def %s; .scl 3; .type 32; .endef\n", sym);
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38 if (type)
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39 fprintf(ctx->fp, "\t.long %s-.-4\n", sym);
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40 else
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41 fprintf(ctx->fp, "\t.long %s\n", sym);
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42 break;
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43 default: /* BUILD_machasm for relative relocations handled below. */
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44 fprintf(ctx->fp, "\t.long %s\n", sym);
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45 break;
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46 }
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47 }
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48
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49 static const char *const jccnames[] = {
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50 "jo", "jno", "jb", "jnb", "jz", "jnz", "jbe", "ja",
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51 "js", "jns", "jpe", "jpo", "jl", "jge", "jle", "jg"
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52 };
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53
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54 /* Emit x86/x64 text relocations. */
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55 static void emit_asm_reloc_text(BuildCtx *ctx, uint8_t *cp, int n,
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56 const char *sym)
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57 {
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58 const char *opname = NULL;
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59 if (--n < 0) goto err;
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60 if (cp[n] == 0xe8) {
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61 opname = "call";
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62 } else if (cp[n] == 0xe9) {
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63 opname = "jmp";
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64 } else if (cp[n] >= 0x80 && cp[n] <= 0x8f && n > 0 && cp[n-1] == 0x0f) {
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65 opname = jccnames[cp[n]-0x80];
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66 n--;
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67 } else {
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68 err:
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69 fprintf(stderr, "Error: unsupported opcode for %s symbol relocation.\n",
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70 sym);
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71 exit(1);
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72 }
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73 emit_asm_bytes(ctx, cp, n);
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74 if (strncmp(sym+(*sym == '_'), LABEL_PREFIX, sizeof(LABEL_PREFIX)-1)) {
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75 /* Various fixups for external symbols outside of our binary. */
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76 if (ctx->mode == BUILD_elfasm) {
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77 if (LJ_32)
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78 fprintf(ctx->fp, "#if __PIC__\n\t%s lj_wrap_%s\n#else\n", opname, sym);
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79 fprintf(ctx->fp, "\t%s %s@PLT\n", opname, sym);
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80 if (LJ_32)
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81 fprintf(ctx->fp, "#endif\n");
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82 return;
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83 } else if (LJ_32 && ctx->mode == BUILD_machasm) {
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84 fprintf(ctx->fp, "\t%s L%s$stub\n", opname, sym);
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85 return;
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86 }
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87 }
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88 fprintf(ctx->fp, "\t%s %s\n", opname, sym);
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89 }
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90 #else
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91 /* Emit words piecewise as assembler text. */
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92 static void emit_asm_words(BuildCtx *ctx, uint8_t *p, int n)
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93 {
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94 int i;
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95 for (i = 0; i < n; i += 4) {
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96 uint32_t ins = *(uint32_t *)(p+i);
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97 #if LJ_TARGET_ARM64 && LJ_BE
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98 ins = lj_bswap(ins); /* ARM64 instructions are always little-endian. */
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99 #endif
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100 if ((i & 15) == 0)
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101 fprintf(ctx->fp, "\t.long 0x%08x", ins);
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102 else
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103 fprintf(ctx->fp, ",0x%08x", ins);
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104 if ((i & 15) == 12) putc('\n', ctx->fp);
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105 }
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106 if ((n & 15) != 0) putc('\n', ctx->fp);
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107 }
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108
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109 /* Emit relocation as part of an instruction. */
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110 static void emit_asm_wordreloc(BuildCtx *ctx, uint8_t *p, int n,
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111 const char *sym)
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112 {
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113 uint32_t ins;
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114 emit_asm_words(ctx, p, n-4);
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115 ins = *(uint32_t *)(p+n-4);
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116 #if LJ_TARGET_ARM
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117 if ((ins & 0xff000000u) == 0xfa000000u) {
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118 fprintf(ctx->fp, "\tblx %s\n", sym);
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119 } else if ((ins & 0x0e000000u) == 0x0a000000u) {
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120 fprintf(ctx->fp, "\t%s%.2s %s\n", (ins & 0x01000000u) ? "bl" : "b",
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121 &"eqnecsccmiplvsvchilsgeltgtle"[2*(ins >> 28)], sym);
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122 } else {
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123 fprintf(stderr,
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124 "Error: unsupported opcode %08x for %s symbol relocation.\n",
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
125 ins, sym);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
126 exit(1);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
127 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
128 #elif LJ_TARGET_ARM64
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
129 if ((ins >> 26) == 0x25u) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
130 fprintf(ctx->fp, "\tbl %s\n", sym);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
131 } else {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
132 fprintf(stderr,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
133 "Error: unsupported opcode %08x for %s symbol relocation.\n",
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
134 ins, sym);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
135 exit(1);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
136 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
137 #elif LJ_TARGET_PPC
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
138 #if LJ_TARGET_PS3
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
139 #define TOCPREFIX "."
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
140 #else
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
141 #define TOCPREFIX ""
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
142 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
143 if ((ins >> 26) == 16) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
144 fprintf(ctx->fp, "\t%s %d, %d, " TOCPREFIX "%s\n",
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
145 (ins & 1) ? "bcl" : "bc", (ins >> 21) & 31, (ins >> 16) & 31, sym);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
146 } else if ((ins >> 26) == 18) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
147 fprintf(ctx->fp, "\t%s " TOCPREFIX "%s\n", (ins & 1) ? "bl" : "b", sym);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
148 } else {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
149 fprintf(stderr,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
150 "Error: unsupported opcode %08x for %s symbol relocation.\n",
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
151 ins, sym);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
152 exit(1);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
153 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
154 #elif LJ_TARGET_MIPS
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
155 fprintf(stderr,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
156 "Error: unsupported opcode %08x for %s symbol relocation.\n",
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
157 ins, sym);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
158 exit(1);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
159 #else
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
160 #error "missing relocation support for this architecture"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
161 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
162 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
163 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
164
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
165 #if LJ_TARGET_ARM
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
166 #define ELFASM_PX "%%"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
167 #else
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
168 #define ELFASM_PX "@"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
169 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
170
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
171 /* Emit an assembler label. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
172 static void emit_asm_label(BuildCtx *ctx, const char *name, int size, int isfunc)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
173 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
174 switch (ctx->mode) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
175 case BUILD_elfasm:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
176 #if LJ_TARGET_PS3
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
177 if (!strncmp(name, "lj_vm_", 6) &&
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
178 strcmp(name, ctx->beginsym) &&
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
179 !strstr(name, "hook")) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
180 fprintf(ctx->fp,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
181 "\n\t.globl %s\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
182 "\t.section \".opd\",\"aw\"\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
183 "%s:\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
184 "\t.long .%s,.TOC.@tocbase32\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
185 "\t.size %s,8\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
186 "\t.previous\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
187 "\t.globl .%s\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
188 "\t.hidden .%s\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
189 "\t.type .%s, " ELFASM_PX "function\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
190 "\t.size .%s, %d\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
191 ".%s:\n",
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
192 name, name, name, name, name, name, name, name, size, name);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
193 break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
194 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
195 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
196 fprintf(ctx->fp,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
197 "\n\t.globl %s\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
198 "\t.hidden %s\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
199 "\t.type %s, " ELFASM_PX "%s\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
200 "\t.size %s, %d\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
201 "%s:\n",
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
202 name, name, name, isfunc ? "function" : "object", name, size, name);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
203 break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
204 case BUILD_coffasm:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
205 fprintf(ctx->fp, "\n\t.globl %s\n", name);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
206 if (isfunc)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
207 fprintf(ctx->fp, "\t.def %s; .scl 3; .type 32; .endef\n", name);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
208 fprintf(ctx->fp, "%s:\n", name);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
209 break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
210 case BUILD_machasm:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
211 fprintf(ctx->fp,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
212 "\n\t.private_extern %s\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
213 "\t.no_dead_strip %s\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
214 "%s:\n", name, name, name);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
215 break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
216 default:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
217 break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
218 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
219 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
220
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
221 /* Emit alignment. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
222 static void emit_asm_align(BuildCtx *ctx, int bits)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
223 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
224 switch (ctx->mode) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
225 case BUILD_elfasm:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
226 case BUILD_coffasm:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
227 fprintf(ctx->fp, "\t.p2align %d\n", bits);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
228 break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
229 case BUILD_machasm:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
230 fprintf(ctx->fp, "\t.align %d\n", bits);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
231 break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
232 default:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
233 break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
234 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
235 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
236
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
237 /* ------------------------------------------------------------------------ */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
238
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
239 /* Emit assembler source code. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
240 void emit_asm(BuildCtx *ctx)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
241 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
242 int i, rel;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
243
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
244 fprintf(ctx->fp, "\t.file \"buildvm_%s.dasc\"\n", ctx->dasm_arch);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
245 fprintf(ctx->fp, "\t.text\n");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
246 #if LJ_TARGET_MIPS32 && !LJ_ABI_SOFTFP
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
247 fprintf(ctx->fp, "\t.module fp=32\n");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
248 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
249 #if LJ_TARGET_MIPS
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
250 fprintf(ctx->fp, "\t.set nomips16\n\t.abicalls\n\t.set noreorder\n\t.set nomacro\n");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
251 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
252 emit_asm_align(ctx, 4);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
253
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
254 #if LJ_TARGET_PS3
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
255 emit_asm_label(ctx, ctx->beginsym, ctx->codesz, 0);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
256 #else
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
257 emit_asm_label(ctx, ctx->beginsym, 0, 0);
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258 #endif
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259 if (ctx->mode != BUILD_machasm)
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260 fprintf(ctx->fp, ".Lbegin:\n");
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261
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262 #if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND
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263 /* This should really be moved into buildvm_arm.dasc. */
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264 #if LJ_ARCH_HASFPU
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265 fprintf(ctx->fp,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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266 ".fnstart\n"
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267 ".save {r5, r6, r7, r8, r9, r10, r11, lr}\n"
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268 ".vsave {d8-d15}\n"
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269 ".save {r4}\n"
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270 ".pad #28\n");
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271 #else
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272 fprintf(ctx->fp,
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273 ".fnstart\n"
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274 ".save {r4, r5, r6, r7, r8, r9, r10, r11, lr}\n"
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275 ".pad #28\n");
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276 #endif
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277 #endif
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278
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279 for (i = rel = 0; i < ctx->nsym; i++) {
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280 int32_t ofs = ctx->sym[i].ofs;
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281 int32_t next = ctx->sym[i+1].ofs;
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282 #if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND && LJ_HASFFI
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283 if (!strcmp(ctx->sym[i].name, "lj_vm_ffi_call"))
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284 fprintf(ctx->fp,
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285 ".globl lj_err_unwind_arm\n"
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286 ".personality lj_err_unwind_arm\n"
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287 ".fnend\n"
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288 ".fnstart\n"
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289 ".save {r4, r5, r11, lr}\n"
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290 ".setfp r11, sp\n");
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291 #endif
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292 emit_asm_label(ctx, ctx->sym[i].name, next - ofs, 1);
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293 while (rel < ctx->nreloc && ctx->reloc[rel].ofs <= next) {
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294 BuildReloc *r = &ctx->reloc[rel];
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295 int n = r->ofs - ofs;
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296 #if LJ_TARGET_X86ORX64
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297 if (r->type != 0 &&
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298 (ctx->mode == BUILD_elfasm || ctx->mode == BUILD_machasm)) {
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299 emit_asm_reloc_text(ctx, ctx->code+ofs, n, ctx->relocsym[r->sym]);
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300 } else {
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301 emit_asm_bytes(ctx, ctx->code+ofs, n);
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302 emit_asm_reloc(ctx, r->type, ctx->relocsym[r->sym]);
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303 }
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304 ofs += n+4;
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305 #else
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306 emit_asm_wordreloc(ctx, ctx->code+ofs, n, ctx->relocsym[r->sym]);
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307 ofs += n;
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diff changeset
308 #endif
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diff changeset
309 rel++;
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310 }
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311 #if LJ_TARGET_X86ORX64
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312 emit_asm_bytes(ctx, ctx->code+ofs, next-ofs);
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313 #else
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314 emit_asm_words(ctx, ctx->code+ofs, next-ofs);
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315 #endif
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316 }
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317
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318 #if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND
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319 fprintf(ctx->fp,
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320 #if !LJ_HASFFI
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321 ".globl lj_err_unwind_arm\n"
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322 ".personality lj_err_unwind_arm\n"
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323 #endif
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324 ".fnend\n");
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325 #endif
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326
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327 fprintf(ctx->fp, "\n");
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diff changeset
328 switch (ctx->mode) {
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329 case BUILD_elfasm:
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330 #if !(LJ_TARGET_PS3 || LJ_TARGET_PSVITA)
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diff changeset
331 fprintf(ctx->fp, "\t.section .note.GNU-stack,\"\"," ELFASM_PX "progbits\n");
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diff changeset
332 #endif
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diff changeset
333 #if LJ_TARGET_PPC && !LJ_TARGET_PS3 && !LJ_ABI_SOFTFP
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334 /* Hard-float ABI. */
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diff changeset
335 fprintf(ctx->fp, "\t.gnu_attribute 4, 1\n");
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diff changeset
336 #endif
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diff changeset
337 /* fallthrough */
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diff changeset
338 case BUILD_coffasm:
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diff changeset
339 fprintf(ctx->fp, "\t.ident \"%s\"\n", ctx->dasm_ident);
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parents:
diff changeset
340 break;
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parents:
diff changeset
341 case BUILD_machasm:
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
342 fprintf(ctx->fp,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
343 "\t.cstring\n"
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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diff changeset
344 "\t.ascii \"%s\\0\"\n", ctx->dasm_ident);
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parents:
diff changeset
345 break;
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parents:
diff changeset
346 default:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
347 break;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
348 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
349 fprintf(ctx->fp, "\n");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
350 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
351