diff options
Diffstat (limited to 'bfd/section.c')
| -rw-r--r-- | bfd/section.c | 109 |
1 files changed, 53 insertions, 56 deletions
diff --git a/bfd/section.c b/bfd/section.c index 72ffcd55ab..2f601719e5 100644 --- a/bfd/section.c +++ b/bfd/section.c @@ -183,23 +183,17 @@ CODE_FRAGMENT . some relocation information too. *} .#define SEC_RELOC 0x004 . -. {* ELF reserves 4 processor specific bits and 8 operating system -. specific bits in sh_flags; at present we can get away with just -. one in communicating between the assembler and BFD, but this -. isn't a good long-term solution. *} -.#define SEC_ARCH_BIT_0 0x008 -. . {* A signal to the OS that the section contains read only data. *} -.#define SEC_READONLY 0x010 +.#define SEC_READONLY 0x008 . . {* The section contains code only. *} -.#define SEC_CODE 0x020 +.#define SEC_CODE 0x010 . . {* The section contains data only. *} -.#define SEC_DATA 0x040 +.#define SEC_DATA 0x020 . . {* The section will reside in ROM. *} -.#define SEC_ROM 0x080 +.#define SEC_ROM 0x040 . . {* The section contains constructor information. This section . type is used by the linker to create lists of constructors and @@ -211,30 +205,19 @@ CODE_FRAGMENT . sections called <<__CTOR_LIST__>> and relocate the data . contained within - exactly the operations it would peform on . standard data. *} -.#define SEC_CONSTRUCTOR 0x100 +.#define SEC_CONSTRUCTOR 0x080 . . {* The section has contents - a data section could be . <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be . <<SEC_HAS_CONTENTS>> *} -.#define SEC_HAS_CONTENTS 0x200 +.#define SEC_HAS_CONTENTS 0x100 . . {* An instruction to the linker to not output the section . even if it has information which would normally be written. *} -.#define SEC_NEVER_LOAD 0x400 -. -. {* The section is a COFF shared library section. This flag is -. only for the linker. If this type of section appears in -. the input file, the linker must copy it to the output file -. without changing the vma or size. FIXME: Although this -. was originally intended to be general, it really is COFF -. specific (and the flag was renamed to indicate this). It -. might be cleaner to have some more general mechanism to -. allow the back end to control what the linker does with -. sections. *} -.#define SEC_COFF_SHARED_LIBRARY 0x800 +.#define SEC_NEVER_LOAD 0x200 . . {* The section contains thread local data. *} -.#define SEC_THREAD_LOCAL 0x1000 +.#define SEC_THREAD_LOCAL 0x400 . . {* The section has GOT references. This flag is only for the . linker, and is currently only used by the elf32-hppa back end. @@ -242,46 +225,46 @@ CODE_FRAGMENT . in this section, which indicate to the linker that the section . contains PIC code, and must be handled specially when doing a . static link. *} -.#define SEC_HAS_GOT_REF 0x4000 +.#define SEC_HAS_GOT_REF 0x800 . . {* The section contains common symbols (symbols may be defined . multiple times, the value of a symbol is the amount of . space it requires, and the largest symbol value is the one . used). Most targets have exactly one of these (which we . translate to bfd_com_section_ptr), but ECOFF has two. *} -.#define SEC_IS_COMMON 0x8000 +.#define SEC_IS_COMMON 0x1000 . . {* The section contains only debugging information. For . example, this is set for ELF .debug and .stab sections. . strip tests this flag to see if a section can be . discarded. *} -.#define SEC_DEBUGGING 0x10000 +.#define SEC_DEBUGGING 0x2000 . . {* The contents of this section are held in memory pointed to . by the contents field. This is checked by bfd_get_section_contents, . and the data is retrieved from memory if appropriate. *} -.#define SEC_IN_MEMORY 0x20000 +.#define SEC_IN_MEMORY 0x4000 . . {* The contents of this section are to be excluded by the . linker for executable and shared objects unless those . objects are to be further relocated. *} -.#define SEC_EXCLUDE 0x40000 +.#define SEC_EXCLUDE 0x8000 . . {* The contents of this section are to be sorted based on the sum of . the symbol and addend values specified by the associated relocation . entries. Entries without associated relocation entries will be . appended to the end of the section in an unspecified order. *} -.#define SEC_SORT_ENTRIES 0x80000 +.#define SEC_SORT_ENTRIES 0x10000 . . {* When linking, duplicate sections of the same name should be . discarded, rather than being combined into a single section as . is usually done. This is similar to how common symbols are . handled. See SEC_LINK_DUPLICATES below. *} -.#define SEC_LINK_ONCE 0x100000 +.#define SEC_LINK_ONCE 0x20000 . . {* If SEC_LINK_ONCE is set, this bitfield describes how the linker . should handle duplicate sections. *} -.#define SEC_LINK_DUPLICATES 0x600000 +.#define SEC_LINK_DUPLICATES 0x40000 . . {* This value for SEC_LINK_DUPLICATES means that duplicate . sections with the same name should simply be discarded. *} @@ -290,55 +273,69 @@ CODE_FRAGMENT . {* This value for SEC_LINK_DUPLICATES means that the linker . should warn if there are any duplicate sections, although . it should still only link one copy. *} -.#define SEC_LINK_DUPLICATES_ONE_ONLY 0x200000 +.#define SEC_LINK_DUPLICATES_ONE_ONLY 0x80000 . . {* This value for SEC_LINK_DUPLICATES means that the linker . should warn if any duplicate sections are a different size. *} -.#define SEC_LINK_DUPLICATES_SAME_SIZE 0x400000 +.#define SEC_LINK_DUPLICATES_SAME_SIZE 0x100000 . . {* This value for SEC_LINK_DUPLICATES means that the linker . should warn if any duplicate sections contain different . contents. *} -.#define SEC_LINK_DUPLICATES_SAME_CONTENTS 0x600000 +.#define SEC_LINK_DUPLICATES_SAME_CONTENTS \ +. (SEC_LINK_DUPLICATES_ONE_ONLY | SEC_LINK_DUPLICATES_SAME_SIZE) . . {* This section was created by the linker as part of dynamic . relocation or other arcane processing. It is skipped when . going through the first-pass output, trusting that someone . else up the line will take care of it later. *} -.#define SEC_LINKER_CREATED 0x800000 +.#define SEC_LINKER_CREATED 0x200000 . . {* This section should not be subject to garbage collection. *} -.#define SEC_KEEP 0x1000000 +.#define SEC_KEEP 0x400000 . . {* This section contains "short" data, and should be placed . "near" the GP. *} -.#define SEC_SMALL_DATA 0x2000000 -. -. {* This section contains data which may be shared with other -. executables or shared objects. *} -.#define SEC_SHARED 0x4000000 -. -. {* When a section with this flag is being linked, then if the size of -. the input section is less than a page, it should not cross a page -. boundary. If the size of the input section is one page or more, it -. should be aligned on a page boundary. *} -.#define SEC_BLOCK 0x8000000 -. -. {* Conditionally link this section; do not link if there are no -. references found to any symbol in the section. *} -.#define SEC_CLINK 0x10000000 +.#define SEC_SMALL_DATA 0x800000 . . {* Attempt to merge identical entities in the section. . Entity size is given in the entsize field. *} -.#define SEC_MERGE 0x20000000 +.#define SEC_MERGE 0x1000000 . . {* If given with SEC_MERGE, entities to merge are zero terminated . strings where entsize specifies character size instead of fixed . size entries. *} -.#define SEC_STRINGS 0x40000000 +.#define SEC_STRINGS 0x2000000 . . {* This section contains data about section groups. *} -.#define SEC_GROUP 0x80000000 +.#define SEC_GROUP 0x4000000 +. +. {* The section is a COFF shared library section. This flag is +. only for the linker. If this type of section appears in +. the input file, the linker must copy it to the output file +. without changing the vma or size. FIXME: Although this +. was originally intended to be general, it really is COFF +. specific (and the flag was renamed to indicate this). It +. might be cleaner to have some more general mechanism to +. allow the back end to control what the linker does with +. sections. *} +.#define SEC_COFF_SHARED_LIBRARY 0x10000000 +. +. {* This section contains data which may be shared with other +. executables or shared objects. This is for COFF only. *} +.#define SEC_COFF_SHARED 0x20000000 +. +. {* When a section with this flag is being linked, then if the size of +. the input section is less than a page, it should not cross a page +. boundary. If the size of the input section is one page or more, +. it should be aligned on a page boundary. This is for TI +. TMS320C54X only. *} +.#define SEC_TIC54X_BLOCK 0x40000000 +. +. {* Conditionally link this section; do not link if there are no +. references found to any symbol in the section. This is for TI +. TMS320C54X only. *} +.#define SEC_TIC54X_CLINK 0x80000000 . . {* End of section flags. *} . |