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https://github.com/RPCS3/llvm-mirror.git
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2375592ce3
During ELF writing, there is no need to further relax the sections, so we should not be creating fragments. This patch avoids doing so in all cases but debug section compression (that is next). Also, the ELF format is fairly simple to write. We can do a single pass over the sections to write them out and compute the section header table. llvm-svn: 236235
181 lines
6.0 KiB
ArmAsm
181 lines
6.0 KiB
ArmAsm
@ RUN: llvm-mc %s -triple=armv7-unknown-linux-gnueabi -filetype=obj -o - \
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@ RUN: | llvm-readobj -s -sd -sr -t > %t
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@ RUN: FileCheck %s < %t
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@ RUN: FileCheck --check-prefix=RELOC %s < %t
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@ Check the combination of .section, .fnstart, and .fnend directives.
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@ For the functions in .text section, the exception handling index (EXIDX)
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@ should be generated in .ARM.exidx, and the exception handling table (EXTAB)
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@ should be generated in .ARM.extab.
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@ For the functions in custom section specified by .section directives,
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@ the EXIDX should be generated in ".ARM.exidx[[SECTION_NAME]]", and the EXTAB
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@ should be generated in ".ARM.extab[[SECTION_NAME]]".
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.syntax unified
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@-------------------------------------------------------------------------------
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@ .TEST1 section
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@-------------------------------------------------------------------------------
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.section .TEST1
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.globl func1
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.align 2
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.type func1,%function
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.fnstart
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func1:
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bx lr
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.personality __gxx_personality_v0
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.handlerdata
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.fnend
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@-------------------------------------------------------------------------------
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@ TEST2 section (without the dot in the beginning)
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@-------------------------------------------------------------------------------
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.section TEST2
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.globl func2
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.align 2
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.type func2,%function
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.fnstart
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func2:
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bx lr
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.personality __gxx_personality_v0
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.handlerdata
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.fnend
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@-------------------------------------------------------------------------------
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@ Check the .TEST1 section.
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@-------------------------------------------------------------------------------
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@ CHECK: Sections [
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@ CHECK: Section {
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@ CHECK: Index: 5
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@ CHECK-NEXT: Name: .TEST1
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@ CHECK: SectionData (
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@ CHECK: 0000: 1EFF2FE1 |../.|
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@ CHECK: )
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@ CHECK: }
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@-------------------------------------------------------------------------------
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@ Check the .ARM.extab.TEST1 section, the EXTAB of .TEST1 section.
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@-------------------------------------------------------------------------------
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@ CHECK: Section {
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@ CHECK: Name: .ARM.extab.TEST1
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@ CHECK: SectionData (
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@ CHECK: 0000: 00000000 B0B0B000 |........|
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@ CHECK: )
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@ CHECK: }
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@ RELOC: Section {
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@ RELOC: Name: .rel.ARM.extab.TEST1
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@ RELOC: Relocations [
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@ RELOC: 0x0 R_ARM_PREL31 __gxx_personality_v0 0x0
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@ RELOC: ]
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@ RELOC: }
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@-------------------------------------------------------------------------------
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@ Check the.ARM.exidx.TEST1 section, the EXIDX of .TEST1 section.
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@-------------------------------------------------------------------------------
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@ CHECK: Section {
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@ CHECK: Name: .ARM.exidx.TEST1
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@-------------------------------------------------------------------------------
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@ This section should linked with .TEST1 section.
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@-------------------------------------------------------------------------------
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@ CHECK: Link: 5
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@-------------------------------------------------------------------------------
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@ The first word should be relocated to the code address in .TEST1 section.
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@ The second word should be relocated to the EHTAB entry in .ARM.extab.TEST1
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@ section.
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@-------------------------------------------------------------------------------
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@ CHECK: SectionData (
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@ CHECK: 0000: 00000000 00000000 |........|
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@ CHECK: )
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@ CHECK: }
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@ RELOC: Section {
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@ RELOC: Name: .rel.ARM.exidx.TEST1
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@ RELOC: Relocations [
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@ RELOC: 0x0 R_ARM_PREL31 .TEST1 0x0
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@ RELOC: 0x4 R_ARM_PREL31 .ARM.extab.TEST1 0x0
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@ RELOC: ]
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@ RELOC: }
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@-------------------------------------------------------------------------------
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@ Check the TEST2 section (without the dot in the beginning)
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@-------------------------------------------------------------------------------
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@ CHECK: Section {
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@ CHECK: Index: 10
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@ CHECK-NEXT: Name: TEST2
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@ CHECK: SectionData (
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@ CHECK: 0000: 1EFF2FE1 |../.|
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@ CHECK: )
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@ CHECK: }
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@-------------------------------------------------------------------------------
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@ Check the .ARM.extabTEST2 section, the EXTAB of TEST2 section.
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@-------------------------------------------------------------------------------
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@ CHECK: Section {
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@ CHECK: Name: .ARM.extabTEST2
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@ CHECK: SectionData (
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@ CHECK: 0000: 00000000 B0B0B000 |........|
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@ CHECK: )
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@ CHECK: }
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@ RELOC: Section {
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@ RELOC: Name: .rel.ARM.extabTEST2
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@ RELOC: Relocations [
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@ RELOC: 0x0 R_ARM_PREL31 __gxx_personality_v0 0x0
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@ RELOC: ]
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@ RELOC: }
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@-------------------------------------------------------------------------------
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@ Check the .ARM.exidxTEST2 section, the EXIDX of TEST2 section.
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@-------------------------------------------------------------------------------
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@ CHECK: Section {
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@ CHECK: Name: .ARM.exidxTEST2
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@-------------------------------------------------------------------------------
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@ This section should linked with TEST2 section.
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@-------------------------------------------------------------------------------
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@ CHECK: Link: 10
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@-------------------------------------------------------------------------------
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@ The first word should be relocated to the code address in TEST2 section.
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@ The second word should be relocated to the EHTAB entry in .ARM.extabTEST2
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@ section.
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@-------------------------------------------------------------------------------
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@ CHECK: SectionData (
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@ CHECK: 0000: 00000000 00000000 |........|
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@ CHECK: )
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@ CHECK: }
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@ RELOC: Section {
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@ RELOC: Name: .rel.ARM.exidxTEST2
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@ RELOC: Relocations [
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@ RELOC: 0x0 R_ARM_PREL31 TEST2 0x0
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@ RELOC: 0x4 R_ARM_PREL31 .ARM.extabTEST2 0x0
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@ RELOC: ]
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@ RELOC: }
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@-------------------------------------------------------------------------------
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@ Check the symbols and the sections they belong to
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@-------------------------------------------------------------------------------
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@ CHECK: Symbols [
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@ CHECK: Symbol {
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@ CHECK: Name: func1
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@ CHECK: Section: .TEST1
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@ CHECK: }
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@ CHECK: Symbol {
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@ CHECK: Name: func2
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@ CHECK: Section: TEST2
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@ CHECK: }
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@ CHECK: ]
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