-
//===-- ARMTargetAsmInfo.cpp - ARM asm properties ---------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by James M. Laskey and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#include <cctype>
using namespace llvm;
+static const char *const arm_asm_table[] = {
+ "{r0}", "r0",
+ "{r1}", "r1",
+ "{r2}", "r2",
+ "{r3}", "r3",
+ "{r4}", "r4",
+ "{r5}", "r5",
+ "{r6}", "r6",
+ "{r7}", "r7",
+ "{r8}", "r8",
+ "{r9}", "r9",
+ "{r10}", "r10",
+ "{r11}", "r11",
+ "{r12}", "r12",
+ "{r13}", "r13",
+ "{r14}", "r14",
+ "{lr}", "lr",
+ "{sp}", "sp",
+ "{ip}", "ip",
+ "{fp}", "fp",
+ "{sl}", "sl",
+ "{memory}", "memory",
+ "{cc}", "cc",
+ 0,0};
+
ARMTargetAsmInfo::ARMTargetAsmInfo(const ARMTargetMachine &TM) {
- Subtarget = &TM.getSubtarget<ARMSubtarget>();
- if (Subtarget->isTargetDarwin()) {
- GlobalPrefix = "_";
- PrivateGlobalPrefix = "L";
- BSSSection = 0; // no BSS section.
- ZeroFillDirective = "\t.zerofill\t"; // Uses .zerofill
- SetDirective = "\t.set";
- WeakRefDirective = "\t.weak_reference\t";
- HiddenDirective = "\t.private_extern\t";
- ProtectedDirective = NULL;
- JumpTableDataSection = ".const";
- CStringSection = "\t.cstring";
- FourByteConstantSection = "\t.literal4\n";
- EightByteConstantSection = "\t.literal8\n";
- ReadOnlySection = "\t.const\n";
- HasDotTypeDotSizeDirective = false;
- if (TM.getRelocationModel() == Reloc::Static) {
- StaticCtorsSection = ".constructor";
- StaticDtorsSection = ".destructor";
- } else {
- StaticCtorsSection = ".mod_init_func";
- StaticDtorsSection = ".mod_term_func";
- }
-
- // In non-PIC modes, emit a special label before jump tables so that the
- // linker can perform more accurate dead code stripping.
- if (TM.getRelocationModel() != Reloc::PIC_) {
- // Emit a local label that is preserved until the linker runs.
- JumpTableSpecialLabelPrefix = "l";
- }
-
- NeedsSet = true;
- DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
- DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
- DwarfLineSection = ".section __DWARF,__debug_line,regular,debug";
- DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
- DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
- DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
- DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
- DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
- DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";
- DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
- DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
- } else {
- PrivateGlobalPrefix = ".L";
- WeakRefDirective = "\t.weak\t";
- if (Subtarget->isAAPCS_ABI()) {
- StaticCtorsSection = "\t.section .init_array,\"aw\",%init_array";
- StaticDtorsSection = "\t.section .fini_array,\"aw\",%fini_array";
- } else {
- StaticCtorsSection = "\t.section .ctors,\"aw\",%progbits";
- StaticDtorsSection = "\t.section .dtors,\"aw\",%progbits";
- }
- TLSDataSection = "\t.section .tdata,\"awT\",%progbits";
- TLSBSSSection = "\t.section .tbss,\"awT\",%nobits";
- }
+ AsmTransCBE = arm_asm_table;
- ZeroDirective = "\t.space\t";
AlignmentIsInBytes = false;
Data64bitsDirective = 0;
CommentString = "@";
- DataSection = "\t.data";
ConstantPoolSection = "\t.text\n";
COMMDirectiveTakesAlignment = false;
InlineAsmStart = "@ InlineAsm Start";
LCOMMDirective = "\t.lcomm\t";
}
+ARMDarwinTargetAsmInfo::ARMDarwinTargetAsmInfo(const ARMTargetMachine &TM):
+ ARMTargetAsmInfo(TM), DarwinTargetAsmInfo(TM) {
+ Subtarget = &DTM->getSubtarget<ARMSubtarget>();
+
+ GlobalPrefix = "_";
+ PrivateGlobalPrefix = "L";
+ LessPrivateGlobalPrefix = "l";
+ StringConstantPrefix = "\1LC";
+ BSSSection = 0; // no BSS section
+ ZeroDirective = "\t.space\t";
+ ZeroFillDirective = "\t.zerofill\t"; // Uses .zerofill
+ SetDirective = "\t.set\t";
+ WeakRefDirective = "\t.weak_reference\t";
+ HiddenDirective = "\t.private_extern\t";
+ ProtectedDirective = NULL;
+ JumpTableDataSection = ".const";
+ CStringSection = "\t.cstring";
+ HasDotTypeDotSizeDirective = false;
+ NeedsIndirectEncoding = true;
+ if (TM.getRelocationModel() == Reloc::Static) {
+ StaticCtorsSection = ".constructor";
+ StaticDtorsSection = ".destructor";
+ } else {
+ StaticCtorsSection = ".mod_init_func";
+ StaticDtorsSection = ".mod_term_func";
+ }
+
+ // In non-PIC modes, emit a special label before jump tables so that the
+ // linker can perform more accurate dead code stripping.
+ if (TM.getRelocationModel() != Reloc::PIC_) {
+ // Emit a local label that is preserved until the linker runs.
+ JumpTableSpecialLabelPrefix = "l";
+ }
+
+ NeedsSet = true;
+ DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
+ DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
+ DwarfLineSection = ".section __DWARF,__debug_line,regular,debug";
+ DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
+ DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
+ DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
+ DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
+ DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
+ DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";
+ DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
+ DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
+}
+
+ARMELFTargetAsmInfo::ARMELFTargetAsmInfo(const ARMTargetMachine &TM):
+ ARMTargetAsmInfo(TM), ELFTargetAsmInfo(TM) {
+ Subtarget = &ETM->getSubtarget<ARMSubtarget>();
+
+ NeedsSet = false;
+ HasLEB128 = true;
+ AbsoluteDebugSectionOffsets = true;
+ CStringSection = ".rodata.str";
+ PrivateGlobalPrefix = ".L";
+ WeakRefDirective = "\t.weak\t";
+ SetDirective = "\t.set\t";
+ DwarfRequiresFrameSection = false;
+ DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"\",%progbits";
+ DwarfInfoSection = "\t.section\t.debug_info,\"\",%progbits";
+ DwarfLineSection = "\t.section\t.debug_line,\"\",%progbits";
+ DwarfFrameSection = "\t.section\t.debug_frame,\"\",%progbits";
+ DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"\",%progbits";
+ DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"\",%progbits";
+ DwarfStrSection = "\t.section\t.debug_str,\"\",%progbits";
+ DwarfLocSection = "\t.section\t.debug_loc,\"\",%progbits";
+ DwarfARangesSection = "\t.section\t.debug_aranges,\"\",%progbits";
+ DwarfRangesSection = "\t.section\t.debug_ranges,\"\",%progbits";
+ DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"\",%progbits";
+
+ if (Subtarget->isAAPCS_ABI()) {
+ StaticCtorsSection = "\t.section .init_array,\"aw\",%init_array";
+ StaticDtorsSection = "\t.section .fini_array,\"aw\",%fini_array";
+ } else {
+ StaticCtorsSection = "\t.section .ctors,\"aw\",%progbits";
+ StaticDtorsSection = "\t.section .dtors,\"aw\",%progbits";
+ }
+}
+
/// Count the number of comma-separated arguments.
/// Do not try to detect errors.
unsigned ARMTargetAsmInfo::countArguments(const char* p) const {
}
/// ARM-specific version of TargetAsmInfo::getInlineAsmLength.
-unsigned ARMTargetAsmInfo::getInlineAsmLength(const char *Str) const {
+unsigned ARMTargetAsmInfo::getInlineAsmLength(const char *s) const {
+ // Make a lowercase-folded version of s for counting purposes.
+ char *q, *s_copy = (char *)malloc(strlen(s) + 1);
+ strcpy(s_copy, s);
+ for (q=s_copy; *q; q++)
+ *q = tolower(*q);
+ const char *Str = s_copy;
+
// Count the number of bytes in the asm.
bool atInsnStart = true;
bool inTextSection = true;
else if (*Str == '.' && Subtarget->isTargetDarwin()) {
// Directive.
atInsnStart = false;
+
// Some change the section, but don't generate code.
- if (strncasecmp(Str, ".literal4", strlen(".literal4"))==0 ||
- strncasecmp(Str, ".literal8", strlen(".literal8"))==0 ||
- strncasecmp(Str, ".const", strlen(".const"))==0 ||
- strncasecmp(Str, ".constructor", strlen(".constructor"))==0 ||
- strncasecmp(Str, ".cstring", strlen(".cstring"))==0 ||
- strncasecmp(Str, ".data", strlen(".data"))==0 ||
- strncasecmp(Str, ".destructor", strlen(".destructor"))==0 ||
- strncasecmp(Str, ".fvmlib_init0", strlen(".fvmlib_init0"))==0 ||
- strncasecmp(Str, ".fvmlib_init1", strlen(".fvmlib_init1"))==0 ||
- strncasecmp(Str, ".mod_init_func", strlen(".mod_init_func"))==0 ||
- strncasecmp(Str, ".mod_term_func", strlen(".mod_term_func"))==0 ||
- strncasecmp(Str, ".picsymbol_stub", strlen(".picsymbol_stub"))==0 ||
- strncasecmp(Str, ".symbol_stub", strlen(".symbol_stub"))==0 ||
- strncasecmp(Str, ".static_data", strlen(".static_data"))==0 ||
- strncasecmp(Str, ".section", strlen(".section"))==0 ||
- strncasecmp(Str, ".lazy_symbol_pointer", strlen(".lazy_symbol_pointer"))==0 ||
- strncasecmp(Str, ".non_lazy_symbol_pointer", strlen(".non_lazy_symbol_pointer"))==0 ||
- strncasecmp(Str, ".dyld", strlen(".dyld"))==0 ||
- strncasecmp(Str, ".const_data", strlen(".const_data"))==0 ||
- strncasecmp(Str, ".objc", strlen(".objc"))==0 || //// many directives
- strncasecmp(Str, ".static_const", strlen(".static_const"))==0)
+ if (strncmp(Str, ".literal4", strlen(".literal4"))==0 ||
+ strncmp(Str, ".literal8", strlen(".literal8"))==0 ||
+ strncmp(Str, ".const", strlen(".const"))==0 ||
+ strncmp(Str, ".constructor", strlen(".constructor"))==0 ||
+ strncmp(Str, ".cstring", strlen(".cstring"))==0 ||
+ strncmp(Str, ".data", strlen(".data"))==0 ||
+ strncmp(Str, ".destructor", strlen(".destructor"))==0 ||
+ strncmp(Str, ".fvmlib_init0", strlen(".fvmlib_init0"))==0 ||
+ strncmp(Str, ".fvmlib_init1", strlen(".fvmlib_init1"))==0 ||
+ strncmp(Str, ".mod_init_func", strlen(".mod_init_func"))==0 ||
+ strncmp(Str, ".mod_term_func", strlen(".mod_term_func"))==0 ||
+ strncmp(Str, ".picsymbol_stub", strlen(".picsymbol_stub"))==0 ||
+ strncmp(Str, ".symbol_stub", strlen(".symbol_stub"))==0 ||
+ strncmp(Str, ".static_data", strlen(".static_data"))==0 ||
+ strncmp(Str, ".section", strlen(".section"))==0 ||
+ strncmp(Str, ".lazy_symbol_pointer", strlen(".lazy_symbol_pointer"))==0 ||
+ strncmp(Str, ".non_lazy_symbol_pointer", strlen(".non_lazy_symbol_pointer"))==0 ||
+ strncmp(Str, ".dyld", strlen(".dyld"))==0 ||
+ strncmp(Str, ".const_data", strlen(".const_data"))==0 ||
+ strncmp(Str, ".objc", strlen(".objc"))==0 || //// many directives
+ strncmp(Str, ".static_const", strlen(".static_const"))==0)
inTextSection=false;
- else if (strncasecmp(Str, ".text", strlen(".text"))==0)
+ else if (strncmp(Str, ".text", strlen(".text"))==0)
inTextSection = true;
// Some can't really be handled without implementing significant pieces
// of an assembler. Others require dynamic adjustment of block sizes in
// AdjustBBOffsetsAfter; it's a big compile-time speed hit to check every
// instruction in there, and none of these are currently used in the kernel.
- else if (strncasecmp(Str, ".macro", strlen(".macro"))==0 ||
- strncasecmp(Str, ".if", strlen(".if"))==0 ||
- strncasecmp(Str, ".align", strlen(".align"))==0 ||
- strncasecmp(Str, ".fill", strlen(".fill"))==0 ||
- strncasecmp(Str, ".space", strlen(".space"))==0 ||
- strncasecmp(Str, ".zerofill", strlen(".zerofill"))==0 ||
- strncasecmp(Str, ".p2align", strlen(".p2align"))==0 ||
- strncasecmp(Str, ".p2alignw", strlen(".p2alignw"))==0 ||
- strncasecmp(Str, ".p2alignl", strlen(".p2alignl"))==0 ||
- strncasecmp(Str, ".align32", strlen(".p2align32"))==0 ||
- strncasecmp(Str, ".include", strlen(".include"))==0)
+ else if (strncmp(Str, ".macro", strlen(".macro"))==0 ||
+ strncmp(Str, ".if", strlen(".if"))==0 ||
+ strncmp(Str, ".align", strlen(".align"))==0 ||
+ strncmp(Str, ".fill", strlen(".fill"))==0 ||
+ strncmp(Str, ".space", strlen(".space"))==0 ||
+ strncmp(Str, ".zerofill", strlen(".zerofill"))==0 ||
+ strncmp(Str, ".p2align", strlen(".p2align"))==0 ||
+ strncmp(Str, ".p2alignw", strlen(".p2alignw"))==0 ||
+ strncmp(Str, ".p2alignl", strlen(".p2alignl"))==0 ||
+ strncmp(Str, ".align32", strlen(".p2align32"))==0 ||
+ strncmp(Str, ".include", strlen(".include"))==0)
cerr << "Directive " << Str << " in asm may lead to invalid offsets for" <<
" constant pools (the assembler will tell you if this happens).\n";
// Some generate code, but this is only interesting in the text section.
else if (inTextSection) {
- if (strncasecmp(Str, ".long", strlen(".long"))==0)
+ if (strncmp(Str, ".long", strlen(".long"))==0)
Length += 4*countArguments(Str+strlen(".long"));
- else if (strncasecmp(Str, ".short", strlen(".short"))==0)
+ else if (strncmp(Str, ".short", strlen(".short"))==0)
Length += 2*countArguments(Str+strlen(".short"));
- else if (strncasecmp(Str, ".byte", strlen(".byte"))==0)
+ else if (strncmp(Str, ".byte", strlen(".byte"))==0)
Length += 1*countArguments(Str+strlen(".byte"));
- else if (strncasecmp(Str, ".single", strlen(".single"))==0)
+ else if (strncmp(Str, ".single", strlen(".single"))==0)
Length += 4*countArguments(Str+strlen(".single"));
- else if (strncasecmp(Str, ".double", strlen(".double"))==0)
+ else if (strncmp(Str, ".double", strlen(".double"))==0)
Length += 8*countArguments(Str+strlen(".double"));
- else if (strncasecmp(Str, ".quad", strlen(".quad"))==0)
+ else if (strncmp(Str, ".quad", strlen(".quad"))==0)
Length += 16*countArguments(Str+strlen(".quad"));
- else if (strncasecmp(Str, ".ascii", strlen(".ascii"))==0)
+ else if (strncmp(Str, ".ascii", strlen(".ascii"))==0)
Length += countString(Str+strlen(".ascii"));
- else if (strncasecmp(Str, ".asciz", strlen(".asciz"))==0)
+ else if (strncmp(Str, ".asciz", strlen(".asciz"))==0)
Length += countString(Str+strlen(".asciz"))+1;
}
} else if (inTextSection) {
atInsnStart = false;
if (Subtarget->isThumb()) {
// BL and BLX <non-reg> are 4 bytes, all others 2.
- if (strncasecmp(Str, "blx", strlen("blx"))==0) {
+ if (strncmp(Str, "blx", strlen("blx"))==0) {
const char* p = Str+3;
while (*p && isspace(*p))
p++;
Length += 2; // BLX reg
else
Length += 4; // BLX non-reg
- } else if (strncasecmp(Str, "bl", strlen("bl"))==0)
+ } else if (strncmp(Str, "bl", strlen("bl"))==0)
Length += 4; // BL
else
Length += 2; // Thumb anything else
if (*Str == '\n' || *Str == SeparatorChar)
atInsnStart = true;
}
+ free(s_copy);
return Length;
}
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