0d0e9c08a4
Summary: The following patch adds the "None" line to the section to segment mapping dump. That line lists the sections that do not belong to any segment. I realize that this change differs from GNU readelf which does not display the latter information. I'd rather not add this "feature" under a command line option. I think that might introduce confusion, since users would have to make an additional decision as to if they want to see all of the section-to-segment map or just a subset of it. Another option is to only print the "None" line if the `--section-mapping` option is passed; however, that might also introduce some confusion, because the section-to-segment map would be different between`--program-headers` and the `--section-mapping` output. While the difference is just the "None" line, it seems that if we choose to display the segment-to-section mapping, then we should always display the whole map including the sections that do not belong to segments. ``` Section to Segment mapping: Segment Sections... 00 01 .interp 02 .interp .note.ABI-tag .gnu.hash 03 .init_array .fini_array .dynamic 04 .dynamic 05 .note.ABI-tag 06 .eh_frame_hdr 07 08 .init_array .fini_array .dynamic .got None .comment .symtab .strtab .shstrtab <--- THIS LINE ``` Reviewers: grimar, rupprecht, jhenderson, espindola Reviewed By: rupprecht Subscribers: khemant, emaste, arichardson, llvm-commits Differential Revision: https://reviews.llvm.org/D57700 llvm-svn: 353217
40 lines
1.2 KiB
ArmAsm
40 lines
1.2 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
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## Test that section .foo is not placed in any segment when assigned to segment
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## NONE in the linker script and segment NONE is not defined.
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# RUN: echo "PHDRS {text PT_LOAD;} \
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# RUN: SECTIONS { \
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# RUN: .text : {*(.text .text*)} :text \
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# RUN: .foo : {*(.foo)} :NONE \
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# RUN: }" > %t.script
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# RUN: ld.lld -o %t --script %t.script %t.o
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# RUN: llvm-readelf -S -l %t | FileCheck %s
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## Test that section .foo is placed in segment NONE when assigned to segment
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## NONE in the linker script and segment NONE is defined.
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# RUN: echo "PHDRS {text PT_LOAD; NONE PT_LOAD;} \
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# RUN: SECTIONS { \
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# RUN: .text : {*(.text .text*)} :text \
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# RUN: .foo : {*(.foo)} :NONE \
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# RUN: }" > %t.script
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# RUN: ld.lld -o %t --script %t.script %t.o
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# RUN: llvm-readelf -S -l %t | FileCheck --check-prefix=DEFINED %s
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# CHECK: Section to Segment mapping:
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# CHECK-NEXT: Segment Sections...
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# CHECK: None {{.*}}.foo
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# DEFINED: Section to Segment mapping:
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# DEFINED-NEXT: Segment Sections...
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# DEFINED-NEXT: 00 .text
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# DEFINED-NEXT: 01 .foo
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.global _start
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_start:
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nop
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.section .foo,"a"
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foo:
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.long 0
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