@ RUN: llvm-mc %s -triple=armv7-unknown-linux-gnueabi -filetype=obj -o - \ @ RUN: | llvm-readobj -S --sd --sr --symbols - | 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: Size: 24 @ CHECK: SectionData ( @------------------------------------------------------------------------------- @ These are the section indexes of .TEST1, .ARM.extab.TEST1, .ARM.exidx.TEST1, @ .rel.ARM.extab.TEST1, and .rel.ARM.exidx.TEST1. @------------------------------------------------------------------------------- @ CHECK-NEXT: 0000: 01000000 04000000 05000000 06000000 @ CHECK-NEXT: 0010: 07000000 08000000 @ CHECK-NEXT: ) @ CHECK: } @------------------------------------------------------------------------------- @ Check the .TEST1 section @------------------------------------------------------------------------------- @ CHECK: Section { @ CHECK: Index: 4 @ CHECK-NEXT: 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: 5 @ CHECK-NEXT: 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: Section { @ CHECK: Index: 6 @ CHECK-NEXT: Name: .rel.ARM.extab.TEST1 @ CHECK: } @------------------------------------------------------------------------------- @ Check the .ARM.exidx.TEST1 section @------------------------------------------------------------------------------- @ CHECK: Section { @ CHECK: Index: 7 @ CHECK-NEXT: 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: 4 @ CHECK: } @ CHECK: Section { @ CHECK: Index: 8 @ CHECK-NEXT: Name: .rel.ARM.exidx.TEST1 @ 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 @ CHECK: } @ CHECK: ]