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llvm-project/llvm/test/MC/ARM/eh-directive-handlerdata.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. llvm-svn: 181603
2013-05-11 00:17:24 +08:00
@ RUN: llvm-mc %s -triple=armv7-unknown-linux-gnueabi -filetype=obj -o - \
Don't depend on the order relocations are written to a .o file. llvm-svn: 235092
2015-04-16 20:59:30 +08:00
@ RUN: | llvm-readobj -s -sd -sr > %t
@ RUN: FileCheck %s < %t
@ RUN: FileCheck --check-prefix=RELOC %s < %t
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
2013-05-11 00:17:24 +08:00
@ Check the .handlerdata directive (without .personality directive)
.syntax unified
@-------------------------------------------------------------------------------
@ TEST1
@-------------------------------------------------------------------------------
.section .TEST1
.globl func1
.align 2
.type func1,%function
.fnstart
func1:
bx lr
.handlerdata
.fnend
@ CHECK:Section {
@ CHECK: Name: .TEST1
@ CHECK: SectionData (
@ CHECK: 0000: 1EFF2FE1 |../.|
@ CHECK: )
@ CHECK:}
@ CHECK:Section {
@ CHECK: Name: .ARM.extab.TEST1
@ CHECK: SectionData (
@ CHECK: 0000: B0B0B080 |....|
@ CHECK: )
@ CHECK:}
@ 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. llvm-svn: 182908
2013-05-30 11:05:14 +08:00
@ CHECK: SectionData (
@ CHECK: 0000: 00000000 00000000 |........|
@ 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. llvm-svn: 181603
2013-05-11 00:17:24 +08:00
@-------------------------------------------------------------------------------
@ We should see a relocation entry to __aeabi_unwind_cpp_pr0, so that the
@ linker can keep __aeabi_unwind_cpp_pr0.
@-------------------------------------------------------------------------------
Don't depend on the order relocations are written to a .o file. llvm-svn: 235092
2015-04-16 20:59:30 +08:00
@ RELOC: Section {
@ RELOC: Name: .rel.ARM.exidx.TEST1
@ RELOC: Relocations [
@ RELOC: 0x0 R_ARM_NONE __aeabi_unwind_cpp_pr0 0x0
Avoid explicit relocation sorting most of the time. These days relocations are created and stored in a deterministic way. The order they are created is also suitable for the .o file, so we don't need an explicit sort. The last remaining exception is MIPS. llvm-svn: 255902
2015-12-18 00:22:06 +08:00
@ RELOC: 0x0 R_ARM_PREL31 .TEST1 0x0
Don't depend on the order relocations are written to a .o file. llvm-svn: 235092
2015-04-16 20:59:30 +08:00
@ RELOC: 0x4 R_ARM_PREL31 .ARM.extab.TEST1 0x0
@ RELOC: ]
@ RELOC: }
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
2013-05-11 00:17:24 +08:00
@-------------------------------------------------------------------------------
@ TEST2
@-------------------------------------------------------------------------------
.section .TEST2
.globl func2
.align 2
.type func2,%function
.fnstart
func2:
@-------------------------------------------------------------------------------
@ Use a lot of unwind opcdes to get __aeabi_unwind_cpp_pr1.
@-------------------------------------------------------------------------------
.save {r4, r5, r6, r7, r8, r9, r10, r11, r12}
push {r4, r5, r6, r7, r8, r9, r10, r11, r12}
pop {r4, r5, r6, r7, r8, r9, r10, r11, r12}
.pad #0x240
sub sp, sp, #0x240
add sp, sp, #0x240
bx lr
.handlerdata
.fnend
@ CHECK:Section {
@ CHECK: Name: .TEST2
@ CHECK: SectionData (
@ CHECK: 0000: F01F2DE9 F01FBDE8 09DD4DE2 09DD8DE2 |..-.......M.....|
@ CHECK: 0010: 1EFF2FE1 |../.|
@ CHECK: )
@ CHECK:}
@ CHECK:Section {
@ CHECK: Name: .ARM.extab.TEST2
@ CHECK: SectionData (
@ CHECK: 0000: 0FB20181 B0B0FF81 |........|
@ CHECK: )
@ CHECK:}
@ CHECK:Section {
@ CHECK: Name: .ARM.exidx.TEST2
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. llvm-svn: 182908
2013-05-30 11:05:14 +08:00
@ CHECK: SectionData (
@ CHECK: 0000: 00000000 00000000 |........|
@ 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. llvm-svn: 181603
2013-05-11 00:17:24 +08:00
@-------------------------------------------------------------------------------
@ We should see a relocation entry to __aeabi_unwind_cpp_pr0, so that the
@ linker can keep __aeabi_unwind_cpp_pr0.
@-------------------------------------------------------------------------------
Don't depend on the order relocations are written to a .o file. llvm-svn: 235092
2015-04-16 20:59:30 +08:00
@ RELOC: Section {
@ RELOC: Name: .rel.ARM.exidx.TEST2
@ RELOC: Relocations [
@ RELOC: 0x0 R_ARM_NONE __aeabi_unwind_cpp_pr1 0x0
Avoid explicit relocation sorting most of the time. These days relocations are created and stored in a deterministic way. The order they are created is also suitable for the .o file, so we don't need an explicit sort. The last remaining exception is MIPS. llvm-svn: 255902
2015-12-18 00:22:06 +08:00
@ RELOC: 0x0 R_ARM_PREL31 .TEST2 0x0
Don't depend on the order relocations are written to a .o file. llvm-svn: 235092
2015-04-16 20:59:30 +08:00
@ RELOC: 0x4 R_ARM_PREL31 .ARM.extab.TEST2 0x0
@ RELOC: ]
@ RELOC: }