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llvm-project/lld/test/ELF/common.s

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Keep the largest common symbol. This requires templating some functions over ELFT, but that opens other cleanup opportunities for future patches. llvm-svn: 246405
2015-08-31 09:16:19 +08:00
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/common.s -o %t2
Rename ld.lld2 to ld.lld since it is the default. llvm-svn: 253437
2015-11-18 14:11:01 +08:00
// RUN: ld.lld %t %t2 -o %t3
Set the correct value for the common symbols. In the relocatable object it is the alignment, but in the linked file it is a regular address. llvm-svn: 246505
2015-09-01 06:55:21 +08:00
// RUN: llvm-readobj -t -s %t3 | FileCheck %s
Keep the largest common symbol. This requires templating some functions over ELFT, but that opens other cleanup opportunities for future patches. llvm-svn: 246405
2015-08-31 09:16:19 +08:00
// REQUIRES: x86
Set the correct value for the common symbols. In the relocatable object it is the alignment, but in the linked file it is a regular address. llvm-svn: 246505
2015-09-01 06:55:21 +08:00
// CHECK: Name: .bss
// CHECK-NEXT: Type: SHT_NOBITS
// CHECK-NEXT: Flags [
// CHECK-NEXT: SHF_ALLOC
// CHECK-NEXT: SHF_WRITE
// CHECK-NEXT: ]
Create a PT_LOAD program header for the start of the file. With this a trivial dynamic program works with the musl dynamic linker: LD_LIBRARY_PATH=. ~/musl/lib/libc.so ./t llvm-svn: 247290
2015-09-10 23:41:34 +08:00
// CHECK-NEXT: Address: 0x11000
Sort common symbols by alignment. llvm-svn: 246511
2015-09-01 08:16:38 +08:00
// CHECK-NEXT: Offset:
Remember the maximum alignment used to refer to a common symbol. llvm-svn: 246517
2015-09-01 09:19:12 +08:00
// CHECK-NEXT: Size: 22
Set the correct value for the common symbols. In the relocatable object it is the alignment, but in the linked file it is a regular address. llvm-svn: 246505
2015-09-01 06:55:21 +08:00
Use a MapVector to output symbols in a deterministic order. We used to sort the symbols at the very end, but we need to know the order earlier so that we can create reference to them in the dynamic relocations. Thanks to Igor Kudrin for pointing out the problem. llvm-svn: 247911
2015-09-18 02:26:25 +08:00
// CHECK: Name: sym1
// CHECK-NEXT: Value: 0x11004
// CHECK-NEXT: Size: 8
Remember the maximum alignment used to refer to a common symbol. llvm-svn: 246517
2015-09-01 09:19:12 +08:00
// CHECK-NEXT: Binding: Global
// CHECK-NEXT: Type: Object
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: .bss
Use a MapVector to output symbols in a deterministic order. We used to sort the symbols at the very end, but we need to know the order earlier so that we can create reference to them in the dynamic relocations. Thanks to Igor Kudrin for pointing out the problem. llvm-svn: 247911
2015-09-18 02:26:25 +08:00
// CHECK: Name: sym2
// CHECK-NEXT: Value: 0x1100C
// CHECK-NEXT: Size: 8
Sort common symbols by alignment. llvm-svn: 246511
2015-09-01 08:16:38 +08:00
// CHECK-NEXT: Binding: Global
// CHECK-NEXT: Type: Object
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: .bss
Use a MapVector to output symbols in a deterministic order. We used to sort the symbols at the very end, but we need to know the order earlier so that we can create reference to them in the dynamic relocations. Thanks to Igor Kudrin for pointing out the problem. llvm-svn: 247911
2015-09-18 02:26:25 +08:00
// CHECK: Name: sym3
// CHECK-NEXT: Value: 0x11014
// CHECK-NEXT: Size: 2
Keep the largest common symbol. This requires templating some functions over ELFT, but that opens other cleanup opportunities for future patches. llvm-svn: 246405
2015-08-31 09:16:19 +08:00
// CHECK-NEXT: Binding: Global
// CHECK-NEXT: Type: Object
// CHECK-NEXT: Other: 0
Assign common symbols to the .bss output section. llvm-svn: 246503
2015-09-01 06:33:21 +08:00
// CHECK-NEXT: Section: .bss
Keep the largest common symbol. This requires templating some functions over ELFT, but that opens other cleanup opportunities for future patches. llvm-svn: 246405
2015-08-31 09:16:19 +08:00
Use a MapVector to output symbols in a deterministic order. We used to sort the symbols at the very end, but we need to know the order earlier so that we can create reference to them in the dynamic relocations. Thanks to Igor Kudrin for pointing out the problem. llvm-svn: 247911
2015-09-18 02:26:25 +08:00
// CHECK: Name: sym4
// CHECK-NEXT: Value: 0x11000
// CHECK-NEXT: Size: 4
Keep the largest common symbol. This requires templating some functions over ELFT, but that opens other cleanup opportunities for future patches. llvm-svn: 246405
2015-08-31 09:16:19 +08:00
// CHECK-NEXT: Binding: Global
// CHECK-NEXT: Type: Object
// CHECK-NEXT: Other: 0
Assign common symbols to the .bss output section. llvm-svn: 246503
2015-09-01 06:33:21 +08:00
// CHECK-NEXT: Section: .bss
Keep the largest common symbol. This requires templating some functions over ELFT, but that opens other cleanup opportunities for future patches. llvm-svn: 246405
2015-08-31 09:16:19 +08:00
.globl _start
_start:
.comm sym1,4,4
.comm sym2,8,4
Sort common symbols by alignment. llvm-svn: 246511
2015-09-01 08:16:38 +08:00
.comm sym3,2,2
Remember the maximum alignment used to refer to a common symbol. llvm-svn: 246517
2015-09-01 09:19:12 +08:00
.comm sym4,4,2