[lld] 80f9fd4 - [ELF][test] Rework non-preemptible ifunc tests
Fangrui Song via llvm-commits
llvm-commits at lists.llvm.org
Thu Jul 15 11:31:17 PDT 2021
Author: Fangrui Song
Date: 2021-07-15T11:31:05-07:00
New Revision: 80f9fd4ce32b59d055543aef75d651f9ffcda182
URL: https://github.com/llvm/llvm-project/commit/80f9fd4ce32b59d055543aef75d651f9ffcda182
DIFF: https://github.com/llvm/llvm-project/commit/80f9fd4ce32b59d055543aef75d651f9ffcda182.diff
LOG: [ELF][test] Rework non-preemptible ifunc tests
Added:
lld/test/ELF/gnu-ifunc-nonpreemptible.s
Modified:
Removed:
lld/test/ELF/gnu-ifunc-dynsym.s
lld/test/ELF/gnu-ifunc.s
################################################################################
diff --git a/lld/test/ELF/gnu-ifunc-dynsym.s b/lld/test/ELF/gnu-ifunc-dynsym.s
deleted file mode 100644
index 3d98ac3a4cfc1..0000000000000
--- a/lld/test/ELF/gnu-ifunc-dynsym.s
+++ /dev/null
@@ -1,23 +0,0 @@
-// REQUIRES: x86
-// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
-
-// RUN: ld.lld -static -export-dynamic %t.o -o %tout
-// RUN: llvm-nm -U %tout | FileCheck %s
-
-// RUN: ld.lld -export-dynamic %t.o -o %tout
-// RUN: llvm-nm -U %tout | FileCheck %s
-
-// CHECK: __rela_iplt_end
-// CHECK: __rela_iplt_start
-
-.text
-.type foo STT_GNU_IFUNC
-.globl foo
-foo:
- ret
-
-.globl _start
-_start:
- call foo
- movl $__rela_iplt_start,%edx
- movl $__rela_iplt_end,%edx
diff --git a/lld/test/ELF/gnu-ifunc-nonpreemptible.s b/lld/test/ELF/gnu-ifunc-nonpreemptible.s
new file mode 100644
index 0000000000000..35400e74d802b
--- /dev/null
+++ b/lld/test/ELF/gnu-ifunc-nonpreemptible.s
@@ -0,0 +1,67 @@
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
+# RUN: ld.lld %t.o -o %t
+# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=DISASM
+# RUN: llvm-readelf -r -s %t | FileCheck %s
+
+# RUN: ld.lld --export-dynamic %t.o -o %t
+# RUN: llvm-readelf -r -s %t | FileCheck %s
+
+# CHECK: Relocation section '.rela.dyn' at offset {{.*}} contains 2 entries:
+# CHECK-NEXT: Type
+# CHECK-NEXT: R_X86_64_IRELATIVE
+# CHECK-NEXT: R_X86_64_IRELATIVE
+
+# CHECK: 0 NOTYPE LOCAL HIDDEN [[#]] __rela_iplt_start
+# CHECK-NEXT: 0 NOTYPE LOCAL HIDDEN [[#]] __rela_iplt_end
+
+# RUN: ld.lld -pie %t.o -o %t1
+# RUN: llvm-readelf -s %t1 | FileCheck %s --check-prefix=PIC
+# RUN: ld.lld -shared %t.o -o %t2
+# RUN: llvm-readelf -s %t2 | FileCheck %s --check-prefix=PIC
+
+# PIC: 0 NOTYPE LOCAL HIDDEN [[#]] __rela_iplt_start
+# PIC-NEXT: 0 NOTYPE LOCAL HIDDEN [[#]] __rela_iplt_end
+
+# DISASM: Disassembly of section .text:
+# DISASM-EMPTY:
+# DISASM-NEXT: <foo>:
+# DISASM-NEXT: 201188: {{.*}} retq
+# DISASM: <bar>:
+# DISASM-NEXT: 201189: {{.*}} retq
+# DISASM: <_start>:
+# DISASM-NEXT: 20118a: {{.*}} callq 0x2011a0
+# DISASM-NEXT: 20118f: {{.*}} callq 0x2011b0
+# DISASM-EMPTY:
+# DISASM-NEXT: Disassembly of section .iplt:
+# DISASM-EMPTY:
+# DISASM-NEXT: <.iplt>:
+# DISASM-NEXT: 2011a0: {{.*}} jmpq *{{.*}}(%rip) # 0x2021d0
+# DISASM-NEXT: 2011a6: {{.*}} pushq $0
+# DISASM-NEXT: 2011ab: {{.*}} jmp 0x0
+# DISASM-NEXT: 2011b0: {{.*}} jmpq *{{.*}}(%rip) # 0x2021d8
+# DISASM-NEXT: 2011b6: {{.*}} pushq $1
+# DISASM-NEXT: 2011bb: {{.*}} jmp 0x0
+
+.text
+.type foo STT_GNU_IFUNC
+.globl foo
+foo:
+ ret
+
+.type bar STT_GNU_IFUNC
+.globl bar
+bar:
+ ret
+
+.weak __rela_iplt_start
+.weak __rela_iplt_end
+
+.globl _start
+_start:
+ call foo
+ call bar
+
+.data
+ .quad __rela_iplt_start
+ .quad __rela_iplt_end
diff --git a/lld/test/ELF/gnu-ifunc.s b/lld/test/ELF/gnu-ifunc.s
deleted file mode 100644
index 49ba69a88be23..0000000000000
--- a/lld/test/ELF/gnu-ifunc.s
+++ /dev/null
@@ -1,133 +0,0 @@
-// REQUIRES: x86
-// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
-// RUN: ld.lld -static %t.o -o %tout
-// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DISASM
-// RUN: llvm-readobj -r --symbols --sections %tout | FileCheck %s
-
-// CHECK: Sections [
-// CHECK: Section {
-// CHECK: Index: 1
-// CHECK-NEXT: Name: .rela.dyn
-// CHECK-NEXT: Type: SHT_RELA
-// CHECK-NEXT: Flags [
-// CHECK-NEXT: SHF_ALLOC
-// CHECK-NEXT: SHF_INFO_LINK
-// CHECK-NEXT: ]
-// CHECK-NEXT: Address: [[RELA:.*]]
-// CHECK-NEXT: Offset: 0x158
-// CHECK-NEXT: Size: 48
-// CHECK-NEXT: Link: 0
-// CHECK-NEXT: Info: [[GOTPLT:.*]]
-// CHECK-NEXT: AddressAlignment: 8
-// CHECK-NEXT: EntrySize: 24
-// CHECK-NEXT: }
-// CHECK: Index: [[GOTPLT]]
-// CHECK-NEXT: Name: .got.plt
-// CHECK: Relocations [
-// CHECK-NEXT: Section ({{.*}}) .rela.dyn {
-// CHECK-NEXT: 0x2021D0 R_X86_64_IRELATIVE
-// CHECK-NEXT: 0x2021D8 R_X86_64_IRELATIVE
-// CHECK-NEXT: }
-// CHECK-NEXT: ]
-// CHECK: Symbols [
-// CHECK-NEXT: Symbol {
-// CHECK-NEXT: Name:
-// CHECK-NEXT: Value: 0x0
-// CHECK-NEXT: Size: 0
-// CHECK-NEXT: Binding: Local
-// CHECK-NEXT: Type: None
-// CHECK-NEXT: Other: 0
-// CHECK-NEXT: Section: Undefined
-// CHECK-NEXT: }
-// CHECK-NEXT: Symbol {
-// CHECK-NEXT: Name: __rela_iplt_start
-// CHECK-NEXT: Value: [[RELA]]
-// CHECK-NEXT: Size: 0
-// CHECK-NEXT: Binding: Local
-// CHECK-NEXT: Type: None
-// CHECK-NEXT: Other [
-// CHECK-NEXT: STV_HIDDEN
-// CHECK-NEXT: ]
-// CHECK-NEXT: Section: .rela.dyn
-// CHECK-NEXT: }
-// CHECK-NEXT: Symbol {
-// CHECK-NEXT: Name: __rela_iplt_end
-// CHECK-NEXT: Value: 0x200188
-// CHECK-NEXT: Size: 0
-// CHECK-NEXT: Binding: Local
-// CHECK-NEXT: Type: None
-// CHECK-NEXT: Other [
-// CHECK-NEXT: STV_HIDDEN
-// CHECK-NEXT: ]
-// CHECK-NEXT: Section: .rela.dyn
-// CHECK-NEXT: }
-// CHECK-NEXT: Symbol {
-// CHECK-NEXT: Name: foo
-// CHECK-NEXT: Value: 0x201188
-// CHECK-NEXT: Size: 0
-// CHECK-NEXT: Binding: Global
-// CHECK-NEXT: Type: GNU_IFunc
-// CHECK-NEXT: Other: 0
-// CHECK-NEXT: Section: .text
-// CHECK-NEXT: }
-// CHECK-NEXT: Symbol {
-// CHECK-NEXT: Name: bar
-// CHECK-NEXT: Value: 0x201189
-// CHECK-NEXT: Size: 0
-// CHECK-NEXT: Binding: Global
-// CHECK-NEXT: Type: GNU_IFunc
-// CHECK-NEXT: Other: 0
-// CHECK-NEXT: Section: .text
-// CHECK-NEXT: }
-// CHECK-NEXT: Symbol {
-// CHECK-NEXT: Name: _start
-// CHECK-NEXT: Value: 0x20118A
-// CHECK-NEXT: Size: 0
-// CHECK-NEXT: Binding: Global
-// CHECK-NEXT: Type: None
-// CHECK-NEXT: Other: 0
-// CHECK-NEXT: Section: .text
-// CHECK-NEXT: }
-// CHECK-NEXT: ]
-
-// DISASM: Disassembly of section .text:
-// DISASM-EMPTY:
-// DISASM-NEXT: <foo>:
-// DISASM-NEXT: 201188: {{.*}} retq
-// DISASM: <bar>:
-// DISASM-NEXT: 201189: {{.*}} retq
-// DISASM: <_start>:
-// DISASM-NEXT: 20118a: {{.*}} callq 0x2011b0
-// DISASM-NEXT: 20118f: {{.*}} callq 0x2011c0
-// DISASM-NEXT: 201194: {{.*}} movl $2097496, %edx
-// DISASM-NEXT: 201199: {{.*}} movl $2097544, %edx
-// DISASM-NEXT: 20119e: {{.*}} movl $2097545, %edx
-// DISASM-EMPTY:
-// DISASM-NEXT: Disassembly of section .iplt:
-// DISASM-EMPTY:
-// DISASM-NEXT: <.iplt>:
-// DISASM-NEXT: 2011b0: {{.*}} jmpq *4122(%rip)
-// DISASM-NEXT: 2011b6: {{.*}} pushq $0
-// DISASM-NEXT: 2011bb: {{.*}} jmp 0x0
-// DISASM-NEXT: 2011c0: {{.*}} jmpq *4114(%rip)
-// DISASM-NEXT: 2011c6: {{.*}} pushq $1
-// DISASM-NEXT: 2011cb: {{.*}} jmp 0x0
-
-.text
-.type foo STT_GNU_IFUNC
-.globl foo
-foo:
- ret
-
-.type bar STT_GNU_IFUNC
-.globl bar
-bar:
- ret
-
-.globl _start
-_start:
- call foo
- call bar
- movl $__rela_iplt_start,%edx
- movl $__rela_iplt_end,%edx
- movl $__rela_iplt_end + 1,%edx
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