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author | Thomas Preud'homme <thomas.preudhomme@arm.com> | 2016-09-26 11:15:12 +0100 |
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committer | Thomas Preud'homme <thomas.preudhomme@arm.com> | 2016-09-26 11:15:12 +0100 |
commit | 0fa7cd5ec7c317690036f27403b116c2654025b5 (patch) | |
tree | a6077a6924164d9829aa8453be83e069e89555e5 /gas/doc/as.texinfo | |
parent | 2d4550cd2922cf5b6115a74db721973e2d150cf8 (diff) | |
download | fsf-binutils-gdb-0fa7cd5ec7c317690036f27403b116c2654025b5.zip fsf-binutils-gdb-0fa7cd5ec7c317690036f27403b116c2654025b5.tar.gz fsf-binutils-gdb-0fa7cd5ec7c317690036f27403b116c2654025b5.tar.bz2 |
2016-09-26 Andre Vieira <andre.simoesdiasvieira@arm.com>
Backport from mainline
2016-02-15 Nick Clifton <nickc@redhat.com>
bfd/
* elf-bfd.h (struct bfd_elf_special_section): Use unsigned values
for length and type fields. Use a signed value for the
suffix_length field.
binutils/
* readelf.c (get_section_type_name): Add hex prefix to offsets
printed for LOPROC and LOOS values. Ensure that a result is
always returned for the V850 target, even when an unrecognised
processor specific value is encountered.
(process_section_headers): Display key values in the order in
which they appear to the user. Add the "C (compressed)" value to
the list.
gas/
* doc/as.texinfo (.section): Document that numeric values can now
be used for the flags and type fields of the ELF target's .section
directive. Add notes about the restrictions on setting flags and
types.
* config/obj-elf.c (obj_elf_change_section): Allow known sections
to be given processor specific section types. Allow processor and
application specific flags of a section to be set after
definition.
(obj_elf_parse_section_letters): Handle parsing numeric values.
(obj_elf_section_type): Handle parsing numeric values.
(obj_elf_section): Allow numeric type values.
* config/obj-elf.h (obj_elf_change_section): Update prototype.
* NEWS: Mention the new feature.
gas/testsuite/
* testsuite/gas/elf/section10.d: New test.
* testsuite/gas/elf/section10.s: Source file for new test.
* testsuite/gas/elf/elf.exp: Run the new test.
* testsuite/gas/i386/ilp32/x86-64-unwind.d: Remove dependency upon
the description of the flags produced by readelf.
* testsuite/gas/tic6x/scomm-directive-4.d: Likewise.
ld/testsuite/
* testsuite/ld-i386/pr12718.d: Remove dependency upon the
description of the flags produced by readelf.
* testsuite/ld-i386/pr12921.d: Likewise.
* testsuite/ld-i386/tlsbin-nacl.rd: Likewise.
* testsuite/ld-i386/tlsbin.rd: Likewise.
* testsuite/ld-i386/tlsbindesc-nacl.rd: Likewise.
* testsuite/ld-i386/tlsbindesc.rd: Likewise.
* testsuite/ld-i386/tlsdesc-nacl.rd: Likewise.
* testsuite/ld-i386/tlsdesc.rd: Likewise.
* testsuite/ld-i386/tlsgdesc-nacl.rd: Likewise.
* testsuite/ld-i386/tlsgdesc.rd: Likewise.
* testsuite/ld-i386/tlsnopic-nacl.rd: Likewise.
* testsuite/ld-i386/tlsnopic.rd: Likewise.
* testsuite/ld-i386/tlspic-nacl.rd: Likewise.
* testsuite/ld-i386/tlspic.rd: Likewise.
* testsuite/ld-s390/tlsbin.rd: Likewise.
* testsuite/ld-s390/tlsbin_64.rd: Likewise.
* testsuite/ld-s390/tlspic.rd: Likewise.
* testsuite/ld-s390/tlspic_64.rd: Likewise.
* testsuite/ld-sh/tlsbin-2.d: Likewise.
* testsuite/ld-sh/tlspic-2.d: Likewise.
* testsuite/ld-tic6x/common.d: Likewise.
* testsuite/ld-tic6x/shlib-1.rd: Likewise.
* testsuite/ld-tic6x/shlib-1b.rd: Likewise.
* testsuite/ld-tic6x/shlib-1r.rd: Likewise.
* testsuite/ld-tic6x/shlib-1rb.rd: Likewise.
* testsuite/ld-tic6x/shlib-app-1.rd: Likewise.
* testsuite/ld-tic6x/shlib-app-1b.rd: Likewise.
* testsuite/ld-tic6x/shlib-app-1r.rd: Likewise.
* testsuite/ld-tic6x/shlib-app-1rb.rd: Likewise.
* testsuite/ld-tic6x/shlib-noindex.rd: Likewise.
* testsuite/ld-tic6x/static-app-1.rd: Likewise.
* testsuite/ld-tic6x/static-app-1b.rd: Likewise.
* testsuite/ld-tic6x/static-app-1r.rd: Likewise.
* testsuite/ld-tic6x/static-app-1rb.rd: Likewise.
* testsuite/ld-x86-64/ilp32-4-nacl.d: Likewise.
* testsuite/ld-x86-64/ilp32-4.d: Likewise.
* testsuite/ld-x86-64/pr12718.d: Likewise.
* testsuite/ld-x86-64/pr12921.d: Likewise.
* testsuite/ld-x86-64/split-by-file-nacl.rd: Likewise.
* testsuite/ld-x86-64/split-by-file.rd: Likewise.
* testsuite/ld-x86-64/tlsbin-nacl.rd: Likewise.
* testsuite/ld-x86-64/tlsbin.rd: Likewise.
* testsuite/ld-x86-64/tlsbindesc-nacl.rd: Likewise.
* testsuite/ld-x86-64/tlsbindesc.rd: Likewise.
* testsuite/ld-x86-64/tlsdesc-nacl.rd: Likewise.
* testsuite/ld-x86-64/tlsdesc.rd: Likewise.
* testsuite/ld-x86-64/tlsgdesc-nacl.rd: Likewise.
* testsuite/ld-x86-64/tlsgdesc.rd: Likewise.
* testsuite/ld-x86-64/tlspic-nacl.rd: Likewise.
* testsuite/ld-x86-64/tlspic.rd: Likewise.
* testsuite/ld-xtensa/tlsbin.rd: Likewise.
* testsuite/ld-xtensa/tlspic.rd: Likewise.
Diffstat (limited to 'gas/doc/as.texinfo')
-rw-r--r-- | gas/doc/as.texinfo | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo index 41efee9..4542b93 100644 --- a/gas/doc/as.texinfo +++ b/gas/doc/as.texinfo @@ -6339,8 +6339,22 @@ section is a member of a section group section is used for thread-local-storage @item ? section is a member of the previously-current section's group, if any +@item @var{number} +a numeric value indicating the bits to be set in the ELF section header's flags +field. Note - if one or more of the alphabetic characters described above is +also included in the flags field, their bit values will be ORed into the +resulting value. +@item @{target specific} +some targets extend this list with their own types @end table +Note - once a section's flags have been set they cannot be changed. There are +a few exceptions to this rule however. Processor and application specific +flags can be added to an already defined section. The @code{.interp}, +@code{.strtab} and @code{.symtab} sections can have the allocate flag +(@code{a}) set after they are initially defined, and the @code{.note-GNU-stack} +section may have the executable (@code(x)) flag added. + The optional @var{type} argument may contain one of the following constants: @table @code @item @@progbits @@ -6355,14 +6369,23 @@ section contains an array of pointers to init functions section contains an array of pointers to finish functions @item @@preinit_array section contains an array of pointers to pre-init functions +@item @@@var{number} +a numeric value to be set as the ELF section header's type field. +@item @@@{target specific} +some targets extend this list with their own types @end table -Many targets only support the first three section types. +Many targets only support the first three section types. The type may be +enclosed in double quotes if necessary. Note on targets where the @code{@@} character is the start of a comment (eg ARM) then another character is used instead. For example the ARM port uses the @code{%} character. +Note - some sections, eg @code{.text} and @code{.data} are considered to be +special and have fixed types. Any attempt to declare them with a different +type will generate an error from the assembler. + If @var{flags} contains the @code{M} symbol then the @var{type} argument must be specified as well as an extra argument---@var{entsize}---like this: |