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llvm-mirror/test/MC/ARM/eh-directive-section-comdat.s
Logan Chien d5b8ea6c58 Implement AsmParser for ARM unwind directives.
This commit implements the AsmParser for fnstart, fnend,
cantunwind, personality, handlerdata, pad, setfp, save, and
vsave directives.

This commit fixes some minor issue in the ARMELFStreamer:

* The switch back to corresponding section after the .fnend
  directive.

* Emit the unwind opcode while processing .fnend directive
  if there is no .handlerdata directive.

* Emit the unwind opcode to .ARM.extab while processing
  .handlerdata even if .personality directive does not exist.

llvm-svn: 181603
2013-05-10 16:17:24 +00:00

127 lines
4.2 KiB
ArmAsm

@ RUN: llvm-mc %s -triple=armv7-unknown-linux-gnueabi -filetype=obj -o - \
@ RUN: | llvm-readobj -s -sd -sr -t | FileCheck %s
@ Check the .group section for the function in comdat section.
@ In C++, the instantiation of the template will come with linkonce (or
@ linkonce_odr) linkage, so that the linker can remove the duplicated
@ instantiation. When the exception handling is enabled on those function,
@ we have to group the corresponding .ARM.extab and .ARM.exidx with the
@ text section together.
@
@ This test case will check the content of .group section. The section index
@ of the grouped sections should be recorded in .group section.
.syntax unified
.section .TEST1,"axG",%progbits,func1,comdat
.weak func1
.align 2
.type func1,%function
func1:
.fnstart
.save {r4, lr}
push {r4, lr}
.vsave {d8, d9, d10, d11, d12}
vpush {d8, d9, d10, d11, d12}
.pad #24
sub sp, sp, #24
add sp, sp, #24
vpop {d8, d9, d10, d11, d12}
pop {r4, pc}
.globl __gxx_personality_v0
.personality __gxx_personality_v0
.handlerdata
.fnend
@-------------------------------------------------------------------------------
@ Check the .group section
@-------------------------------------------------------------------------------
@ CHECK: Sections [
@ CHECK: Section {
@ CHECK: Index: 1
@ CHECK: Name: .group
@ CHECK: Type: SHT_GROUP (0x11)
@ CHECK: Flags [ (0x0)
@ CHECK: ]
@ CHECK: SectionData (
@-------------------------------------------------------------------------------
@ The second, third, and fourth word should correspond to the section index
@ of .TEST1, .ARM.extab.TEST1, and .ARM.exidx.TEST1.
@-------------------------------------------------------------------------------
@ CHECK: 0000: 01000000 05000000 06000000 08000000 |................|
@ CHECK: )
@ CHECK: }
@-------------------------------------------------------------------------------
@ Check the .TEST1 section
@-------------------------------------------------------------------------------
@ CHECK: Section {
@ CHECK: Index: 5
@ CHECK: Name: .TEST1
@ CHECK: Type: SHT_PROGBITS (0x1)
@-------------------------------------------------------------------------------
@ The flags should contain SHF_GROUP.
@-------------------------------------------------------------------------------
@ CHECK: Flags [ (0x206)
@ CHECK: SHF_ALLOC (0x2)
@ CHECK: SHF_EXECINSTR (0x4)
@ CHECK: SHF_GROUP (0x200)
@ CHECK: ]
@ CHECK: }
@-------------------------------------------------------------------------------
@ Check the .ARM.extab.TEST1 section
@-------------------------------------------------------------------------------
@ CHECK: Section {
@ CHECK: Index: 6
@ CHECK: Name: .ARM.extab.TEST1
@ CHECK: Type: SHT_PROGBITS (0x1)
@-------------------------------------------------------------------------------
@ The flags should contain SHF_GROUP.
@-------------------------------------------------------------------------------
@ CHECK: Flags [ (0x202)
@ CHECK: SHF_ALLOC (0x2)
@ CHECK: SHF_GROUP (0x200)
@ CHECK: ]
@ CHECK: }
@-------------------------------------------------------------------------------
@ Check the .ARM.exidx.TEST1 section
@-------------------------------------------------------------------------------
@ CHECK: Section {
@ CHECK: Index: 8
@ CHECK: Name: .ARM.exidx.TEST1
@ CHECK: Type: SHT_ARM_EXIDX (0x70000001)
@-------------------------------------------------------------------------------
@ The flags should contain SHF_GROUP.
@-------------------------------------------------------------------------------
@ CHECK: Flags [ (0x282)
@ CHECK: SHF_ALLOC (0x2)
@ CHECK: SHF_GROUP (0x200)
@ CHECK: SHF_LINK_ORDER (0x80)
@ CHECK: ]
@ CHECK: Link: 5
@ CHECK: }
@ CHECK: ]
@-------------------------------------------------------------------------------
@ Check symbol func1. It should be weak binding, and belong to .TEST1 section.
@-------------------------------------------------------------------------------
@ CHECK: Symbols [
@ CHECK: Symbol {
@ CHECK: Name: func1
@ CHECK: Binding: Weak (0x2)
@ CHECK: Type: Function (0x2)
@ CHECK: Section: .TEST1 (0x5)
@ CHECK: }
@ CHECK: ]