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| author | Mickael Guene <mickael.guene@st.com> | 2016-01-20 12:53:50 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2016-01-20 12:53:50 +0000 |
| commit | 91f68a68f992e3f6c3da26c616b5257230bd1eec (patch) | |
| tree | 9e549da0d8aaacafb6231069425241f003357a14 /gas/testsuite | |
| parent | be56871ee8f65c51b9eee611532ed036a71a72e0 (diff) | |
| download | gdb-91f68a68f992e3f6c3da26c616b5257230bd1eec.zip gdb-91f68a68f992e3f6c3da26c616b5257230bd1eec.tar.gz gdb-91f68a68f992e3f6c3da26c616b5257230bd1eec.tar.bz2 | |
Add support for an ARM specific 'y' section attribute flag to mark the section as NOREAD.
bfd/ChangeLog:
* elf32-arm.c ((elf32_arm_special_sections): Remove catch of noread
section using '.text.noread' pattern.
gas/ChangeLog:
* config/obj-elf.c (obj_elf_change_section) : Allow arm section with
SHF_ARM_NOREAD section flag.
* config/tc-arm.h (md_elf_section_letter) : Implement this hook to
handle letter 'y'.
(arm_elf_section_letter) : Declare it.
* config/tc-arm.c (arm_elf_section_letter): Handle letter 'y' to set
SHF_ARM_NOREAD section flag.
* doc/c-arm.texi (ARM section attribute 'y'): Document it.
gas/testsuite/ChangeLog:
* gas/arm/section-execute-only.s: New test case.
* gas/arm/section-execute-only.d: Expected output.
ld/testsuite/ChangeLog:
* ld-arm/thumb1-noread-not-present-mixing-two-section.s: Add 'y'
attribute usage.
* ld-arm/thumb1-noread-present-one-section.s: Likewise.
* ld-arm/thumb1-noread-present-two-section.s: Likewise.
* ld-arm/thumb1-input-section-flag-match.s: Likewise.
binutils/ChangeLog:
* readelf.c (get_elf_section_flags): Display y letter for section
with SHF_ARM_NOREAD section flag in readelf section output.
(process_section_headers): Add y letter in readelf section output
key mapping for ARM architecture.
Diffstat (limited to 'gas/testsuite')
| -rw-r--r-- | gas/testsuite/gas/arm/section-execute-only.d | 27 | ||||
| -rw-r--r-- | gas/testsuite/gas/arm/section-execute-only.s | 30 |
2 files changed, 57 insertions, 0 deletions
diff --git a/gas/testsuite/gas/arm/section-execute-only.d b/gas/testsuite/gas/arm/section-execute-only.d new file mode 100644 index 0000000..d45a132 --- /dev/null +++ b/gas/testsuite/gas/arm/section-execute-only.d @@ -0,0 +1,27 @@ +# name: test executable-only section attribute +# as: +# readelf: -t +# This test is only valid on EABI based ports. +# target: *-*-*eabi* *-*-nacl* +There are 10 section headers, starting at offset 0x16c: + +Section Headers: + \[Nr\] Name + Type Addr Off Size ES Lk Inf Al + Flags + \[ 0\] + NULL 00000000 000000 000000 00 0 0 0 + \[00000000\]: + \[ 1\] .text + PROGBITS 00000000 000034 000000 00 0 0 2 + \[00000006\]: ALLOC, EXEC + \[ 2\] .data + PROGBITS 00000000 000034 000000 00 0 0 1 + \[00000003\]: WRITE, ALLOC + \[ 3\] .bss + NOBITS 00000000 000034 000000 00 0 0 1 + \[00000003\]: WRITE, ALLOC + \[ 4\] .text.foo + PROGBITS 00000000 000034 000010 00 0 0 4 + \[20000006\]: ALLOC, EXEC, ARM_NOREAD +#pass diff --git a/gas/testsuite/gas/arm/section-execute-only.s b/gas/testsuite/gas/arm/section-execute-only.s new file mode 100644 index 0000000..9d5ffc6 --- /dev/null +++ b/gas/testsuite/gas/arm/section-execute-only.s @@ -0,0 +1,30 @@ + .syntax unified + .cpu cortex-m3 + .fpu softvfp + .eabi_attribute 20, 1 + .eabi_attribute 21, 1 + .eabi_attribute 23, 3 + .eabi_attribute 24, 1 + .eabi_attribute 25, 1 + .eabi_attribute 26, 1 + .eabi_attribute 30, 2 + .eabi_attribute 34, 1 + .eabi_attribute 18, 4 + .thumb + .section .text.foo,"axy",%progbits + .align 2 + .global foo + .thumb + .thumb_func + .type foo, %function +foo: + @ args = 0, pretend = 0, frame = 0 + @ frame_needed = 0, uses_anonymous_args = 0 + @ link register save eliminated. + movs r0, #1 + movs r1, #1 + movw r2, #257 + movs r3, #1 + b madd + .size foo, .-foo + |