diff options
Diffstat (limited to 'gas/doc')
| -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 917781b..86b09fc 100644 --- a/gas/doc/as.texinfo +++ b/gas/doc/as.texinfo @@ -6375,8 +6375,22 @@ 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 @@ -6391,14 +6405,23 @@ 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: |