From 2f7e39c7d5d7c19ec9529f2a2e7992bcb432751a Mon Sep 17 00:00:00 2001
From: George Rimar <grimar@accesssoftek.com>
Date: Fri, 29 Jun 2018 12:19:35 +0000
Subject: [PATCH] [ELF] - EhFrame.cpp: cover personality encoding handling code
 with the test cases.

CIEs augmentation string can have 'P' character,
what means the next byte is the personality encoding, a DW_EH_PE_xxx value.
This is followed by a pointer to the personality function.

We had the support of the different encodings earlier, but had no test cases.

This change adds coverage of DW_EH_PE_absptr/DW_EH_PE_signed/DW_EH_PE_udata2/DW_EH_PE_sdata2 and
DW_EH_PE_udata8/DW_EH_PE_sdata8 cases for place below:
https://github.com/llvm-mirror/lld/blob/master/ELF/EhFrame.cpp#L123

llvm-svn: 335969
---
 lld/test/ELF/eh-frame-value-format1.s | 35 +++++++++++++++++++++++++++
 lld/test/ELF/eh-frame-value-format2.s | 35 +++++++++++++++++++++++++++
 lld/test/ELF/eh-frame-value-format3.s | 28 +++++++++++++++++++++
 lld/test/ELF/eh-frame-value-format4.s | 28 +++++++++++++++++++++
 lld/test/ELF/eh-frame-value-format5.s | 35 +++++++++++++++++++++++++++
 lld/test/ELF/eh-frame-value-format6.s | 35 +++++++++++++++++++++++++++
 6 files changed, 196 insertions(+)
 create mode 100644 lld/test/ELF/eh-frame-value-format1.s
 create mode 100644 lld/test/ELF/eh-frame-value-format2.s
 create mode 100644 lld/test/ELF/eh-frame-value-format3.s
 create mode 100644 lld/test/ELF/eh-frame-value-format4.s
 create mode 100644 lld/test/ELF/eh-frame-value-format5.s
 create mode 100644 lld/test/ELF/eh-frame-value-format6.s

diff --git a/lld/test/ELF/eh-frame-value-format1.s b/lld/test/ELF/eh-frame-value-format1.s
new file mode 100644
index 000000000000..1190244afbae
--- /dev/null
+++ b/lld/test/ELF/eh-frame-value-format1.s
@@ -0,0 +1,35 @@
+# REQUIRES: x86
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
+# RUN: ld.lld --eh-frame-hdr %t -o %t2
+
+.section .eh_frame
+  .byte 0x14
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x01
+  
+  .byte 0x50 # Augmentation string: 'P','\0'
+  .byte 0x00
+  
+  .byte 0x01
+  
+  .byte 0x01 # LEB128
+  .byte 0x01 # LEB128
+
+  .byte 0x04 # DW_EH_PE_udata8
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  
+  .byte 0xFF
diff --git a/lld/test/ELF/eh-frame-value-format2.s b/lld/test/ELF/eh-frame-value-format2.s
new file mode 100644
index 000000000000..988d5088116e
--- /dev/null
+++ b/lld/test/ELF/eh-frame-value-format2.s
@@ -0,0 +1,35 @@
+# REQUIRES: x86
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
+# RUN: ld.lld --eh-frame-hdr %t -o %t2
+
+.section .eh_frame
+  .byte 0x14
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x01
+  
+  .byte 0x50 # Augmentation string: 'P','\0'
+  .byte 0x00
+  
+  .byte 0x01
+  
+  .byte 0x01 # LEB128
+  .byte 0x01 # LEB128
+
+  .byte 0x04 # DW_EH_PE_sdata8
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  
+  .byte 0xFF
diff --git a/lld/test/ELF/eh-frame-value-format3.s b/lld/test/ELF/eh-frame-value-format3.s
new file mode 100644
index 000000000000..dd0d853aa5b5
--- /dev/null
+++ b/lld/test/ELF/eh-frame-value-format3.s
@@ -0,0 +1,28 @@
+# REQUIRES: x86
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
+# RUN: ld.lld --eh-frame-hdr %t -o %t2
+
+.section .eh_frame
+  .byte 0x0E
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x01
+  
+  .byte 0x50 # Augmentation string: 'P','\0'
+  .byte 0x00
+  
+  .byte 0x01
+  
+  .byte 0x01 # LEB128
+  .byte 0x01 # LEB128
+
+  .byte 0x0A # DW_EH_PE_sdata2
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
diff --git a/lld/test/ELF/eh-frame-value-format4.s b/lld/test/ELF/eh-frame-value-format4.s
new file mode 100644
index 000000000000..404a86050248
--- /dev/null
+++ b/lld/test/ELF/eh-frame-value-format4.s
@@ -0,0 +1,28 @@
+# REQUIRES: x86
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
+# RUN: ld.lld --eh-frame-hdr %t -o %t2
+
+.section .eh_frame
+  .byte 0x0E
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x01
+  
+  .byte 0x50 # Augmentation string: 'P','\0'
+  .byte 0x00
+  
+  .byte 0x01
+  
+  .byte 0x01 # LEB128
+  .byte 0x01 # LEB128
+
+  .byte 0x02 # DW_EH_PE_udata2
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
diff --git a/lld/test/ELF/eh-frame-value-format5.s b/lld/test/ELF/eh-frame-value-format5.s
new file mode 100644
index 000000000000..ef48087c3ec3
--- /dev/null
+++ b/lld/test/ELF/eh-frame-value-format5.s
@@ -0,0 +1,35 @@
+# REQUIRES: x86
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
+# RUN: ld.lld --eh-frame-hdr %t -o %t2
+
+.section .eh_frame
+  .byte 0x14
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x01
+  
+  .byte 0x50 # Augmentation string: 'P','\0'
+  .byte 0x00
+  
+  .byte 0x01
+  
+  .byte 0x01 # LEB128
+  .byte 0x01 # LEB128
+
+  .byte 0x08 # DW_EH_PE_signed
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  
+  .byte 0xFF
diff --git a/lld/test/ELF/eh-frame-value-format6.s b/lld/test/ELF/eh-frame-value-format6.s
new file mode 100644
index 000000000000..ef48087c3ec3
--- /dev/null
+++ b/lld/test/ELF/eh-frame-value-format6.s
@@ -0,0 +1,35 @@
+# REQUIRES: x86
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
+# RUN: ld.lld --eh-frame-hdr %t -o %t2
+
+.section .eh_frame
+  .byte 0x14
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x00
+  .byte 0x01
+  
+  .byte 0x50 # Augmentation string: 'P','\0'
+  .byte 0x00
+  
+  .byte 0x01
+  
+  .byte 0x01 # LEB128
+  .byte 0x01 # LEB128
+
+  .byte 0x08 # DW_EH_PE_signed
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  .byte 0xFF
+  
+  .byte 0xFF