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llvm-6502/test/MC/ARM/eh-compact-pr1.s

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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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181603 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-10 16:17:24 +00:00
@ RUN: llvm-mc %s -triple=armv7-unknown-linux-gnueabi -filetype=obj -o - \
@ RUN: | llvm-readobj -s -sd -sr | FileCheck %s
@ Check the compact pr1 model
.syntax unified
.section .TEST1
.globl func1
.align 2
.type func1,%function
func1:
.fnstart
.save {r4, r5, r11, lr}
push {r4, r5, r11, lr}
add r0, r1, r0
.setfp r11, sp, #8
add r11, sp, #8
pop {r4, r5, r11, pc}
.fnend
@-------------------------------------------------------------------------------
@ Check .TEST1 section
@-------------------------------------------------------------------------------
@ CHECK: Sections [
@ CHECK: Section {
@ CHECK: Name: .TEST1
@ CHECK: SectionData (
@ CHECK: 0000: 30482DE9 000081E0 08B08DE2 3088BDE8 |0H-.........0...|
@ CHECK: )
@ CHECK: }
@-------------------------------------------------------------------------------
@ Check .ARM.extab.TEST1 section
@-------------------------------------------------------------------------------
@ CHECK: Section {
@ CHECK: Name: .ARM.extab.TEST1
@-------------------------------------------------------------------------------
@ 0x81 = Compact model 1, personality routine: __aeabi_unwind_cpp_pr1
@ 0x9B = $sp can be found in $r11
@ 0x41 = $sp = $sp - 8
@ 0x8483 = pop {r4, r5, r11, r14}
@ 0xB0 = finish
@-------------------------------------------------------------------------------
@ CHECK: SectionData (
Fix ARM EHABI compact model 1 and 2 without handlerdata. According to ARM EHABI section 9.2, if the __aeabi_unwind_cpp_pr1() or __aeabi_unwind_cpp_pr2() is used, then the handler data must be emitted after the unwind opcodes. The handler data consists of several words, and should be terminated by zero. In case that the .handlerdata directive is not specified by the programmer, we should emit zero to terminate the handler data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185422 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-02 12:43:27 +00:00
@ CHECK: 0000: 419B0181 B0B08384 00000000 |A...........|
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181603 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-10 16:17:24 +00:00
@ CHECK: )
@ CHECK: }
@-------------------------------------------------------------------------------
@ Check .ARM.exidx.TEST1 section
@-------------------------------------------------------------------------------
@ CHECK: Section {
@ CHECK: Name: .ARM.exidx.TEST1
Change how we iterate over relocations on ELF. For COFF and MachO, sections semantically have relocations that apply to them. That is not the case on ELF. In relocatable objects (.o), a section with relocations in ELF has offsets to another section where the relocations should be applied. In dynamic objects and executables, relocations don't have an offset, they have a virtual address. The section sh_info may or may not point to another section, but that is not actually used for resolving the relocations. This patch exposes that in the ObjectFile API. It has the following advantages: * Most (all?) clients can handle this more efficiently. They will normally walk all relocations, so doing an effort to iterate in a particular order doesn't save time. * llvm-readobj now prints relocations in the same way the native readelf does. * probably most important, relocations that don't point to any section are now visible. This is the case of relocations in the rela.dyn section. See the updated relocation-executable.test for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182908 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-30 03:05:14 +00:00
@ CHECK: SectionData (
@ CHECK: 0000: 00000000 00000000 |........|
@ CHECK: )
@ CHECK: }
@ CHECK: ]
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181603 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-10 16:17:24 +00:00
@-------------------------------------------------------------------------------
@ The first word should be relocated to .TEST1 section, and the second word
@ should be relocated to .ARM.extab.TEST1 section. Besides, there is
@ another relocation entry for __aeabi_unwind_cpp_pr1, so that the linker
@ will keep __aeabi_unwind_cpp_pr1.
@-------------------------------------------------------------------------------
@ CHECK: Relocations [
@ CHECK: 0x0 R_ARM_PREL31 .TEST1 0x0
@ CHECK: 0x0 R_ARM_NONE __aeabi_unwind_cpp_pr1 0x0
@ CHECK: 0x4 R_ARM_PREL31 .ARM.extab.TEST1 0x0
@ CHECK: ]
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