vendor/lld/lld-trunk-r233088

1 files changed, 133 insertions, 0 deletions

diff --git a/test/elf/Mips/la25-stub.test b/test/elf/Mips/la25-stub.test
new file mode 100644
index 0000000000000..2c4b26452cecb
--- /dev/null
+++ b/test/elf/Mips/la25-stub.test
@@ -0,0 +1,133 @@
+# Check LA25 stubs creation when PIC code is called from non-PIC routines.
+
+# Build executable from pic and non-pic code.
+# RUN: yaml2obj -format=elf -docnum 1 %s > %t-npic.o
+# RUN: yaml2obj -format=elf -docnum 2 %s > %t-pic.o
+# RUN: yaml2obj -format=elf -docnum 3 %s > %t-main.o
+# RUN: lld -flavor gnu -target mipsel -e glob -o %t.exe \
+# RUN:         %t-npic.o %t-pic.o %t-main.o
+
+# RUN: llvm-readobj -t %t.exe | FileCheck -check-prefix=SYM %s
+# RUN: llvm-objdump -s %t.exe | FileCheck -check-prefix=ASM %s
+
+# SYM:      Name: loc (13)
+# SYM-NEXT: Value: 0x400134
+# SYM:      Name: T1N (1)
+# SYM-NEXT: Value: 0x400110
+# SYM:      Name: T1 (5)
+# SYM-NEXT: Value: 0x400120
+# SYM:      Name: glob (8)
+# SYM-NEXT: Value: 0x400124
+
+# ASM:      Contents of section .text:
+# ASM-NEXT:  400110 00000000 00000000 00000000 00000000
+# ASM-NEXT:  400120 00000000 00000000 00000000 49001000
+#           0x100049 << 2 == 0x400124 (glob) --^
+# ASM-NEXT:  400130 00000000 49001000 00000000 44001000
+#                            ^-- 0x100049 << 2 == 0x400124 (glob)
+#               0x100044 << 2 == 0x400110 (T1N) --^
+# ASM-NEXT:  400140 00000000 54001000 00000000 00000000
+#                            ^-- 0x100054 << 2 == 0x400150 (T1 stub)
+# ASM-NEXT:  400150 4000193c 48001008 20013927 00000000
+#                            ^-- j 0x400120 (T1)
+
+# npic.o
+---
+FileHeader:
+  Class:    ELFCLASS32
+  Data:     ELFDATA2LSB
+  Type:     ET_REL
+  Machine:  EM_MIPS
+  Flags:    [ EF_MIPS_ABI_O32, EF_MIPS_ARCH_32, EF_MIPS_CPIC ]
+
+Sections:
+- Name:         .text
+  Type:         SHT_PROGBITS
+  Size:         0x04
+  AddressAlign: 16
+  Flags:        [SHF_EXECINSTR, SHF_ALLOC]
+
+Symbols:
+  Global:
+    - Name:    T1N
+      Section: .text
+      Type:    STT_FUNC
+      Value:   0x0
+      Size:    4
+
+# pic.o
+---
+FileHeader:
+  Class:    ELFCLASS32
+  Data:     ELFDATA2LSB
+  Type:     ET_REL
+  Machine:  EM_MIPS
+  Flags:    [ EF_MIPS_ABI_O32, EF_MIPS_ARCH_32, EF_MIPS_CPIC, EF_MIPS_PIC ]
+
+Sections:
+- Name:         .text
+  Type:         SHT_PROGBITS
+  Size:         0x04
+  AddressAlign: 16
+  Flags:        [SHF_EXECINSTR, SHF_ALLOC]
+
+Symbols:
+  Global:
+    - Name: T1
+      Section: .text
+      Type: STT_FUNC
+      Value: 0x0
+      Size: 4
+
+# main.o
+---
+FileHeader:
+  Class:     ELFCLASS32
+  Data:      ELFDATA2LSB
+  Type:      ET_REL
+  Machine:   EM_MIPS
+  Flags:     [ EF_MIPS_ABI_O32, EF_MIPS_ARCH_32, EF_MIPS_CPIC ]
+
+Sections:
+  - Name:            .text
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
+    AddressAlign:    0x04
+    Size:            0x28
+  - Name:            .rel.text
+    Type:            SHT_REL
+    Link:            .symtab
+    AddressAlign:    0x04
+    Info:            .text
+    Relocations:
+      - Offset:          0x08
+        Symbol:          .text
+        Type:            R_MIPS_26
+        Addend:          0
+      - Offset:          0x10
+        Symbol:          glob
+        Type:            R_MIPS_26
+        Addend:          0
+      - Offset:          0x18
+        Symbol:          T1N
+        Type:            R_MIPS_26
+        Addend:          0
+      - Offset:          0x20
+        Symbol:          T1
+        Type:            R_MIPS_26
+        Addend:          0
+
+Symbols:
+  Local:
+    - Name:            loc
+      Section:         .text
+      Value:           0x10
+    - Name:            .text
+      Type:            STT_SECTION
+      Section:         .text
+  Global:
+    - Name:            glob
+      Section:         .text
+    - Name:            T1
+    - Name:            T1N
+...