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Map ELf flags back to more specific section kinds.

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With that, convert another llc -filetype=obj test.

llvm-svn: 205031
This commit is contained in:
Rafael Espindola 2014-03-28 19:14:08 +00:00
parent 77481e60fa
commit b5253f1b62
3 changed files with 115 additions and 41 deletions
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30
lib/MC/MCParser/ELFAsmParser.cpp
View File

@ -269,11 +269,37 @@ bool ELFAsmParser::ParseSectionName(StringRef &SectionName) {
return false;
}
static SectionKind computeSectionKind(unsigned Flags) {
static SectionKind computeSectionKind(unsigned Flags, unsigned ElemSize) {
if (Flags & ELF::SHF_EXECINSTR)
return SectionKind::getText();
if (Flags & ELF::SHF_TLS)
return SectionKind::getThreadData();
if (Flags & ELF::SHF_MERGE) {
if (Flags & ELF::SHF_STRINGS) {
switch (ElemSize) {
default:
break;
case 1:
return SectionKind::getMergeable1ByteCString();
case 2:
return SectionKind::getMergeable2ByteCString();
case 4:
return SectionKind::getMergeable4ByteCString();
}
} else {
switch (ElemSize) {
default:
break;
case 4:
return SectionKind::getMergeableConst4();
case 8:
return SectionKind::getMergeableConst8();
case 16:
return SectionKind::getMergeableConst16();
}
}
}
return SectionKind::getDataRel();
}
@ -518,7 +544,7 @@ EndStmt:
}
}
SectionKind Kind = computeSectionKind(Flags);
SectionKind Kind = computeSectionKind(Flags, Size);
getStreamer().SwitchSection(getContext().getELFSection(SectionName, Type,
Flags, Kind, Size,
GroupName),

39
test/MC/Mips/elf-relsym.ll
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@ -1,39 +0,0 @@
; RUN: llc -filetype=obj -mtriple mipsel-unknown-linux %s -o - | llvm-readobj -t | FileCheck %s
; Check that the appropriate symbols were created.
; CHECK: Symbols [
; CHECK: Symbol {
; CHECK: Name: $.str
; CHECK: }
; CHECK: Symbol {
; CHECK: Name: $.str1
; CHECK: }
; CHECK: Symbol {
; CHECK: Name: $CPI0_0
; CHECK: }
; CHECK: Symbol {
; CHECK: Name: $CPI0_1
; CHECK: }
; CHECK: ]
@.str = private unnamed_addr constant [6 x i8] c"abcde\00", align 1
@gc1 = external global i8*
@.str1 = private unnamed_addr constant [5 x i8] c"fghi\00", align 1
@gc2 = external global i8*
@gd1 = external global double
@gd2 = external global double
define void @foo1() nounwind {
entry:
store i8* getelementptr inbounds ([6 x i8]* @.str, i32 0, i32 0), i8** @gc1, align 4
store i8* getelementptr inbounds ([5 x i8]* @.str1, i32 0, i32 0), i8** @gc2, align 4
%0 = load double* @gd1, align 8
%add = fadd double %0, 2.500000e+00
store double %add, double* @gd1, align 8
%1 = load double* @gd2, align 8
%add1 = fadd double %1, 4.500000e+00
store double %add1, double* @gd2, align 8
ret void
}

87
test/MC/Mips/elf-relsym.s Normal file
View File

@ -0,0 +1,87 @@
// RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux %s -o - | llvm-readobj -t | FileCheck %s
// Check that the appropriate symbols were created.
// CHECK: Symbols [
// CHECK: Symbol {
// CHECK: Name: $.str
// CHECK: }
// CHECK: Symbol {
// CHECK: Name: $.str1
// CHECK: }
// CHECK: Symbol {
// CHECK: Name: $CPI0_0
// CHECK: }
// CHECK: Symbol {
// CHECK: Name: $CPI0_1
// CHECK: }
// CHECK: ]
.text
.abicalls
.section .mdebug.abi32,"",@progbits
.file "/home/espindola/llvm/llvm/test/MC/Mips/elf-relsym.ll"
.section .rodata.cst8,"aM",@progbits,8
.align 3
$CPI0_0:
.8byte 4612811918334230528 # double 2.5
$CPI0_1:
.8byte 4616752568008179712 # double 4.5
.text
.globl foo1
.align 2
.type foo1,@function
.set nomips16
.ent foo1
foo1: # @foo1
.frame $sp,0,$ra
.mask 0x00000000,0
.fmask 0x00000000,0
.set noreorder
.set nomacro
.set noat
# BB#0: # %entry
lui $2, %hi(_gp_disp)
addiu $2, $2, %lo(_gp_disp)
addu $1, $2, $25
lw $2, %got($.str)($1)
addiu $2, $2, %lo($.str)
lw $3, %got(gc1)($1)
sw $2, 0($3)
lw $2, %got($.str1)($1)
addiu $2, $2, %lo($.str1)
lw $3, %got(gc2)($1)
sw $2, 0($3)
lw $2, %got($CPI0_0)($1)
ldc1 $f0, %lo($CPI0_0)($2)
lw $2, %got(gd1)($1)
ldc1 $f2, 0($2)
lw $3, %got($CPI0_1)($1)
ldc1 $f4, %lo($CPI0_1)($3)
lw $1, %got(gd2)($1)
add.d $f0, $f2, $f0
sdc1 $f0, 0($2)
ldc1 $f0, 0($1)
add.d $f0, $f0, $f4
jr $ra
sdc1 $f0, 0($1)
.set at
.set macro
.set reorder
.end foo1
$tmp0:
.size foo1, ($tmp0)-foo1
.type $.str,@object # @.str
.section .rodata.str1.1,"aMS",@progbits,1
$.str:
.asciz "abcde"
.size $.str, 6
.type $.str1,@object # @.str1
$.str1:
.asciz "fghi"
.size $.str1, 5
.text