diff options
Diffstat (limited to 'contrib/binutils/bfd/section.c')
| -rw-r--r-- | contrib/binutils/bfd/section.c | 570 |
1 files changed, 324 insertions, 246 deletions
diff --git a/contrib/binutils/bfd/section.c b/contrib/binutils/bfd/section.c index b3b7608..13e10d3 100644 --- a/contrib/binutils/bfd/section.c +++ b/contrib/binutils/bfd/section.c @@ -1,5 +1,5 @@ /* Object file "section" support for the BFD library. - Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999 + Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc. Written by Cygnus Support. @@ -111,7 +111,6 @@ SUBSECTION | size 0x103 | | output_section --------| - SUBSECTION Link orders @@ -133,7 +132,6 @@ SUBSECTION */ - #include "bfd.h" #include "sysdep.h" #include "libbfd.h" @@ -150,10 +148,10 @@ SUBSECTION CODE_FRAGMENT . -. {* This structure is used for a comdat section, as in PE. A comdat -. section is associated with a particular symbol. When the linker -. sees a comdat section, it keeps only one of the sections with a -. given name and associated with a given symbol. *} +.{* This structure is used for a comdat section, as in PE. A comdat +. section is associated with a particular symbol. When the linker +. sees a comdat section, it keeps only one of the sections with a +. given name and associated with a given symbol. *} . .struct bfd_comdat_info .{ @@ -165,340 +163,362 @@ CODE_FRAGMENT . specific code; it is not an index into the list returned by . bfd_canonicalize_symtab. *} . long symbol; -. -. {* If this section is being discarded, the linker uses this field -. to point to the input section which is being kept. *} -. struct sec *sec; .}; . .typedef struct sec .{ -. {* The name of the section; the name isn't a copy, the pointer is -. the same as that passed to bfd_make_section. *} +. {* The name of the section; the name isn't a copy, the pointer is +. the same as that passed to bfd_make_section. *} +. +. const char *name; +. +. {* A unique sequence number. *} . -. CONST char *name; +. int id; . -. {* Which section is it; 0..nth. *} +. {* Which section is it; 0..nth. *} . -. int index; +. int index; . -. {* The next section in the list belonging to the BFD, or NULL. *} +. {* The next section in the list belonging to the BFD, or NULL. *} . -. struct sec *next; +. struct sec *next; . -. {* The field flags contains attributes of the section. Some -. flags are read in from the object file, and some are -. synthesized from other information. *} +. {* The field flags contains attributes of the section. Some +. flags are read in from the object file, and some are +. synthesized from other information. *} . -. flagword flags; +. flagword flags; . .#define SEC_NO_FLAGS 0x000 . -. {* Tells the OS to allocate space for this section when loading. -. This is clear for a section containing debug information -. only. *} +. {* Tells the OS to allocate space for this section when loading. +. This is clear for a section containing debug information only. *} .#define SEC_ALLOC 0x001 . -. {* Tells the OS to load the section from the file when loading. -. This is clear for a .bss section. *} +. {* Tells the OS to load the section from the file when loading. +. This is clear for a .bss section. *} .#define SEC_LOAD 0x002 . -. {* The section contains data still to be relocated, so there is -. some relocation information too. *} +. {* The section contains data still to be relocated, so there is +. some relocation information too. *} .#define SEC_RELOC 0x004 . .#if 0 {* Obsolete ? *} .#define SEC_BALIGN 0x008 .#endif . -. {* A signal to the OS that the section contains read only -. data. *} +. {* A signal to the OS that the section contains read only data. *} .#define SEC_READONLY 0x010 . -. {* The section contains code only. *} +. {* The section contains code only. *} .#define SEC_CODE 0x020 . -. {* The section contains data only. *} +. {* The section contains data only. *} .#define SEC_DATA 0x040 . -. {* The section will reside in ROM. *} +. {* The section will reside in ROM. *} .#define SEC_ROM 0x080 . -. {* The section contains constructor information. This section -. type is used by the linker to create lists of constructors and -. destructors used by <<g++>>. When a back end sees a symbol -. which should be used in a constructor list, it creates a new -. section for the type of name (e.g., <<__CTOR_LIST__>>), attaches -. the symbol to it, and builds a relocation. To build the lists -. of constructors, all the linker has to do is catenate all the -. sections called <<__CTOR_LIST__>> and relocate the data -. contained within - exactly the operations it would peform on -. standard data. *} +. {* The section contains constructor information. This section +. type is used by the linker to create lists of constructors and +. destructors used by <<g++>>. When a back end sees a symbol +. which should be used in a constructor list, it creates a new +. section for the type of name (e.g., <<__CTOR_LIST__>>), attaches +. the symbol to it, and builds a relocation. To build the lists +. of constructors, all the linker has to do is catenate all the +. sections called <<__CTOR_LIST__>> and relocate the data +. contained within - exactly the operations it would peform on +. standard data. *} .#define SEC_CONSTRUCTOR 0x100 . -. {* The section is a constructor, and should be placed at the -. end of the text, data, or bss section(?). *} +. {* The section is a constructor, and should be placed at the +. end of the text, data, or bss section(?). *} .#define SEC_CONSTRUCTOR_TEXT 0x1100 .#define SEC_CONSTRUCTOR_DATA 0x2100 .#define SEC_CONSTRUCTOR_BSS 0x3100 . -. {* The section has contents - a data section could be -. <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be -. <<SEC_HAS_CONTENTS>> *} +. {* 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 . -. {* An instruction to the linker to not output the section -. even if it has information which would normally be written. *} +. {* 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. *} +. {* 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 . -. {* 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. *} +. {* The section has GOT references. This flag is only for the +. linker, and is currently only used by the elf32-hppa back end. +. It will be set if global offset table references were detected +. 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 +. +. {* 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 . -. {* 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. *} +. {* 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 . -. {* 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. *} +. {* 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 . -. {* 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. *} +. {* 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 . -. {* The contents of this section are to be sorted by the -. based on the address specified in the associated symbol -. table. *} +. {* The contents of this section are to be sorted by the +. based on the address specified in the associated symbol +. table. *} .#define SEC_SORT_ENTRIES 0x80000 . -. {* 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. *} +. {* 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 . -. {* If SEC_LINK_ONCE is set, this bitfield describes how the linker -. should handle duplicate sections. *} +. {* If SEC_LINK_ONCE is set, this bitfield describes how the linker +. should handle duplicate sections. *} .#define SEC_LINK_DUPLICATES 0x600000 . -. {* This value for SEC_LINK_DUPLICATES means that duplicate -. sections with the same name should simply be discarded. *} +. {* This value for SEC_LINK_DUPLICATES means that duplicate +. sections with the same name should simply be discarded. *} .#define SEC_LINK_DUPLICATES_DISCARD 0x0 . -. {* 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. *} +. {* 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 . -. {* This value for SEC_LINK_DUPLICATES means that the linker -. should warn if any duplicate sections are a different size. *} +. {* 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 . -. {* This value for SEC_LINK_DUPLICATES means that the linker -. should warn if any duplicate sections contain different -. contents. *} +. {* 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 . -. {* 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. *} +. {* 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 . -. {* This section should not be subject to garbage collection. *} +. {* This section should not be subject to garbage collection. *} .#define SEC_KEEP 0x1000000 . -. {* This section contains "short" data, and should be placed -. "near" the GP. *} +. {* 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. *} +. {* This section contains data which may be shared with other +. executables or shared objects. *} .#define SEC_SHARED 0x4000000 . -. {* End of section flags. *} +. {* 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 . -. {* Some internal packed boolean fields. *} +. {* Conditionally link this section; do not link if there are no +. references found to any symbol in the section. *} +.#define SEC_CLINK 0x10000000 . -. {* See the vma field. *} -. unsigned int user_set_vma : 1; +. {* End of section flags. *} . -. {* Whether relocations have been processed. *} -. unsigned int reloc_done : 1; +. {* Some internal packed boolean fields. *} . -. {* A mark flag used by some of the linker backends. *} -. unsigned int linker_mark : 1; +. {* See the vma field. *} +. unsigned int user_set_vma : 1; . -. {* A mark flag used by some linker backends for garbage collection. *} -. unsigned int gc_mark : 1; +. {* Whether relocations have been processed. *} +. unsigned int reloc_done : 1; . -. {* End of internal packed boolean fields. *} +. {* A mark flag used by some of the linker backends. *} +. unsigned int linker_mark : 1; . -. {* The virtual memory address of the section - where it will be -. at run time. The symbols are relocated against this. The -. user_set_vma flag is maintained by bfd; if it's not set, the -. backend can assign addresses (for example, in <<a.out>>, where -. the default address for <<.data>> is dependent on the specific -. target and various flags). *} +. {* A mark flag used by some linker backends for garbage collection. *} +. unsigned int gc_mark : 1; . -. bfd_vma vma; +. {* Used by the ELF code to mark sections which have been allocated to segments. *} +. unsigned int segment_mark : 1; . -. {* The load address of the section - where it would be in a -. rom image; really only used for writing section header -. information. *} +. {* End of internal packed boolean fields. *} . -. bfd_vma lma; +. {* The virtual memory address of the section - where it will be +. at run time. The symbols are relocated against this. The +. user_set_vma flag is maintained by bfd; if it's not set, the +. backend can assign addresses (for example, in <<a.out>>, where +. the default address for <<.data>> is dependent on the specific +. target and various flags). *} . -. {* The size of the section in octets, as it will be output. -. Contains a value even if the section has no contents (e.g., the -. size of <<.bss>>). This will be filled in after relocation. *} +. bfd_vma vma; . -. bfd_size_type _cooked_size; +. {* The load address of the section - where it would be in a +. rom image; really only used for writing section header +. information. *} . -. {* The original size on disk of the section, in octets. Normally this -. value is the same as the size, but if some relaxing has -. been done, then this value will be bigger. *} +. bfd_vma lma; . -. bfd_size_type _raw_size; +. {* The size of the section in octets, as it will be output. +. Contains a value even if the section has no contents (e.g., the +. size of <<.bss>>). This will be filled in after relocation. *} . -. {* If this section is going to be output, then this value is the -. offset in *bytes* into the output section of the first byte in the -. input section (byte ==> smallest addressable unit on the -. target). In most cases, if this was going to start at the -. 100th octet (8-bit quantity) in the output section, this value -. would be 100. However, if the target byte size is 16 bits -. (bfd_octets_per_byte is "2"), this value would be 50. *} +. bfd_size_type _cooked_size; . -. bfd_vma output_offset; +. {* The original size on disk of the section, in octets. Normally this +. value is the same as the size, but if some relaxing has +. been done, then this value will be bigger. *} . -. {* The output section through which to map on output. *} +. bfd_size_type _raw_size; . -. struct sec *output_section; +. {* If this section is going to be output, then this value is the +. offset in *bytes* into the output section of the first byte in the +. input section (byte ==> smallest addressable unit on the +. target). In most cases, if this was going to start at the +. 100th octet (8-bit quantity) in the output section, this value +. would be 100. However, if the target byte size is 16 bits +. (bfd_octets_per_byte is "2"), this value would be 50. *} . -. {* The alignment requirement of the section, as an exponent of 2 - -. e.g., 3 aligns to 2^3 (or 8). *} +. bfd_vma output_offset; . -. unsigned int alignment_power; +. {* The output section through which to map on output. *} . -. {* If an input section, a pointer to a vector of relocation -. records for the data in this section. *} +. struct sec *output_section; . -. struct reloc_cache_entry *relocation; +. {* The alignment requirement of the section, as an exponent of 2 - +. e.g., 3 aligns to 2^3 (or 8). *} . -. {* If an output section, a pointer to a vector of pointers to -. relocation records for the data in this section. *} +. unsigned int alignment_power; . -. struct reloc_cache_entry **orelocation; +. {* If an input section, a pointer to a vector of relocation +. records for the data in this section. *} . -. {* The number of relocation records in one of the above *} +. struct reloc_cache_entry *relocation; . -. unsigned reloc_count; +. {* If an output section, a pointer to a vector of pointers to +. relocation records for the data in this section. *} . -. {* Information below is back end specific - and not always used -. or updated. *} +. struct reloc_cache_entry **orelocation; . -. {* File position of section data *} +. {* The number of relocation records in one of the above *} . -. file_ptr filepos; +. unsigned reloc_count; . -. {* File position of relocation info *} +. {* Information below is back end specific - and not always used +. or updated. *} . -. file_ptr rel_filepos; +. {* File position of section data. *} . -. {* File position of line data *} +. file_ptr filepos; . -. file_ptr line_filepos; +. {* File position of relocation info. *} . -. {* Pointer to data for applications *} +. file_ptr rel_filepos; . -. PTR userdata; +. {* File position of line data. *} . -. {* If the SEC_IN_MEMORY flag is set, this points to the actual -. contents. *} -. unsigned char *contents; +. file_ptr line_filepos; . -. {* Attached line number information *} +. {* Pointer to data for applications. *} . -. alent *lineno; +. PTR userdata; . -. {* Number of line number records *} +. {* If the SEC_IN_MEMORY flag is set, this points to the actual +. contents. *} +. unsigned char *contents; . -. unsigned int lineno_count; +. {* Attached line number information. *} . -. {* Optional information about a COMDAT entry; NULL if not COMDAT *} +. alent *lineno; . -. struct bfd_comdat_info *comdat; +. {* Number of line number records. *} . -. {* When a section is being output, this value changes as more -. linenumbers are written out *} +. unsigned int lineno_count; . -. file_ptr moving_line_filepos; +. {* Optional information about a COMDAT entry; NULL if not COMDAT. *} . -. {* What the section number is in the target world *} +. struct bfd_comdat_info *comdat; . -. int target_index; +. {* Points to the kept section if this section is a link-once section, +. and is discarded. *} +. struct sec *kept_section; . -. PTR used_by_bfd; +. {* When a section is being output, this value changes as more +. linenumbers are written out. *} . -. {* If this is a constructor section then here is a list of the -. relocations created to relocate items within it. *} +. file_ptr moving_line_filepos; . -. struct relent_chain *constructor_chain; +. {* What the section number is in the target world. *} . -. {* The BFD which owns the section. *} +. int target_index; . -. bfd *owner; +. PTR used_by_bfd; . -. {* A symbol which points at this section only *} -. struct symbol_cache_entry *symbol; -. struct symbol_cache_entry **symbol_ptr_ptr; +. {* If this is a constructor section then here is a list of the +. relocations created to relocate items within it. *} . -. struct bfd_link_order *link_order_head; -. struct bfd_link_order *link_order_tail; +. struct relent_chain *constructor_chain; +. +. {* The BFD which owns the section. *} +. +. bfd *owner; +. +. {* A symbol which points at this section only *} +. struct symbol_cache_entry *symbol; +. struct symbol_cache_entry **symbol_ptr_ptr; +. +. struct bfd_link_order *link_order_head; +. struct bfd_link_order *link_order_tail; .} asection ; . -. {* These sections are global, and are managed by BFD. The application -. and target back end are not permitted to change the values in -. these sections. New code should use the section_ptr macros rather -. than referring directly to the const sections. The const sections -. may eventually vanish. *} +.{* These sections are global, and are managed by BFD. The application +. and target back end are not permitted to change the values in +. these sections. New code should use the section_ptr macros rather +. than referring directly to the const sections. The const sections +. may eventually vanish. *} .#define BFD_ABS_SECTION_NAME "*ABS*" .#define BFD_UND_SECTION_NAME "*UND*" .#define BFD_COM_SECTION_NAME "*COM*" .#define BFD_IND_SECTION_NAME "*IND*" . -. {* the absolute section *} +.{* the absolute section *} .extern const asection bfd_abs_section; .#define bfd_abs_section_ptr ((asection *) &bfd_abs_section) .#define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr) -. {* Pointer to the undefined section *} +.{* Pointer to the undefined section *} .extern const asection bfd_und_section; .#define bfd_und_section_ptr ((asection *) &bfd_und_section) .#define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr) -. {* Pointer to the common section *} +.{* Pointer to the common section *} .extern const asection bfd_com_section; .#define bfd_com_section_ptr ((asection *) &bfd_com_section) -. {* Pointer to the indirect section *} +.{* Pointer to the indirect section *} .extern const asection bfd_ind_section; .#define bfd_ind_section_ptr ((asection *) &bfd_ind_section) .#define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr) @@ -538,29 +558,38 @@ static const asymbol global_syms[] = GLOBAL_SYM_INIT (BFD_IND_SECTION_NAME, &bfd_ind_section) }; -#define STD_SECTION(SEC, FLAGS, SYM, NAME, IDX) \ - const asymbol * const SYM = (asymbol *) &global_syms[IDX]; \ - const asection SEC = \ - /* name, index, next, flags, set_vma, reloc_done, linker_mark, gc_mark */ \ - { NAME, 0, 0, FLAGS, 0, 0, 0, 0, \ - \ - /* vma, lma, _cooked_size, _raw_size, output_offset, output_section, */ \ - 0, 0, 0, 0, 0, (struct sec *) &SEC, \ - \ - /* alig..., reloc..., orel..., reloc_count, filepos, rel_..., line_... */ \ - 0, 0, 0, 0, 0, 0, 0, \ - \ - /* userdata, contents, lineno, lineno_count */ \ - 0, 0, 0, 0, \ - \ - /* comdat_info, moving_line_filepos, target_index, used_by_bfd, */ \ - NULL, 0, 0, 0, \ - \ - /* cons..., owner, symbol */ \ - 0, 0, (struct symbol_cache_entry *) &global_syms[IDX], \ - \ - /* symbol_ptr_ptr, link_order_head, ..._tail */ \ - (struct symbol_cache_entry **) &SYM, 0, 0 \ +#define STD_SECTION(SEC, FLAGS, SYM, NAME, IDX) \ + const asymbol * const SYM = (asymbol *) &global_syms[IDX]; \ + const asection SEC = \ + /* name, id, index, next, flags, user_set_vma, reloc_done, */ \ + { NAME, IDX, 0, NULL, FLAGS, 0, 0, \ + \ + /* linker_mark, gc_mark, segment_mark, vma, lma, _cooked_size, */ \ + 0, 1, 0, 0, 0, 0, \ + \ + /* _raw_size, output_offset, output_section, alignment_power, */ \ + 0, 0, (struct sec *) &SEC, 0, \ + \ + /* relocation, orelocation, reloc_count, filepos, rel_filepos, */ \ + NULL, NULL, 0, 0, 0, \ + \ + /* line_filepos, userdata, contents, lineno, lineno_count, */ \ + 0, NULL, NULL, NULL, 0, \ + \ + /* comdat, kept_section, moving_line_filepos, target_index, */ \ + NULL, NULL, 0, 0, \ + \ + /* used_by_bfd, constructor_chain, owner, */ \ + NULL, NULL, NULL, \ + \ + /* symbol, */ \ + (struct symbol_cache_entry *) &global_syms[IDX], \ + \ + /* symbol_ptr_ptr, */ \ + (struct symbol_cache_entry **) &SYM, \ + \ + /* link_order_head, link_order_tail */ \ + NULL, NULL \ } STD_SECTION (bfd_com_section, SEC_IS_COMMON, bfd_com_symbol, @@ -585,7 +614,7 @@ FUNCTION bfd_get_section_by_name SYNOPSIS - asection *bfd_get_section_by_name(bfd *abfd, CONST char *name); + asection *bfd_get_section_by_name(bfd *abfd, const char *name); DESCRIPTION Run through @var{abfd} and return the one of the @@ -601,7 +630,7 @@ DESCRIPTION asection * bfd_get_section_by_name (abfd, name) bfd *abfd; - CONST char *name; + const char *name; { asection *sect; @@ -611,13 +640,62 @@ bfd_get_section_by_name (abfd, name) return NULL; } +/* +FUNCTION + bfd_get_unique_section_name + +SYNOPSIS + char *bfd_get_unique_section_name(bfd *abfd, + const char *templat, + int *count); + +DESCRIPTION + Invent a section name that is unique in @var{abfd} by tacking + a dot and a digit suffix onto the original @var{templat}. If + @var{count} is non-NULL, then it specifies the first number + tried as a suffix to generate a unique name. The value + pointed to by @var{count} will be incremented in this case. +*/ + +char * +bfd_get_unique_section_name (abfd, templat, count) + bfd *abfd; + const char *templat; + int *count; +{ + int num; + unsigned int len; + char *sname; + + len = strlen (templat); + sname = bfd_malloc (len + 8); + if (sname == NULL) + return NULL; + strcpy (sname, templat); + num = 1; + if (count != NULL) + num = *count; + + do + { + /* If we have a million sections, something is badly wrong. */ + if (num > 999999) + abort (); + sprintf (sname + len, ".%d", num++); + } + while (bfd_get_section_by_name (abfd, sname) != NULL); + + if (count != NULL) + *count = num; + return sname; +} /* FUNCTION bfd_make_section_old_way SYNOPSIS - asection *bfd_make_section_old_way(bfd *abfd, CONST char *name); + asection *bfd_make_section_old_way(bfd *abfd, const char *name); DESCRIPTION Create a new empty section called @var{name} @@ -637,11 +715,10 @@ DESCRIPTION */ - asection * bfd_make_section_old_way (abfd, name) bfd *abfd; - CONST char *name; + const char *name; { asection *sec = bfd_get_section_by_name (abfd, name); if (sec == (asection *) NULL) @@ -656,7 +733,7 @@ FUNCTION bfd_make_section_anyway SYNOPSIS - asection *bfd_make_section_anyway(bfd *abfd, CONST char *name); + asection *bfd_make_section_anyway(bfd *abfd, const char *name); DESCRIPTION Create a new empty section called @var{name} and attach it to the end of @@ -671,8 +748,9 @@ DESCRIPTION sec_ptr bfd_make_section_anyway (abfd, name) bfd *abfd; - CONST char *name; + const char *name; { + static int section_id = 0x10; /* id 0 to 3 used by STD_SECTION. */ asection *newsect; asection **prev = &abfd->sections; asection *sect = abfd->sections; @@ -694,6 +772,7 @@ bfd_make_section_anyway (abfd, name) return NULL; newsect->name = name; + newsect->id = section_id++; newsect->index = abfd->section_count++; newsect->flags = SEC_NO_FLAGS; @@ -705,13 +784,17 @@ bfd_make_section_anyway (abfd, name) newsect->line_filepos = 0; newsect->owner = abfd; newsect->comdat = NULL; + newsect->kept_section = NULL; /* Create a symbol whos only job is to point to this section. This is useful for things like relocs which are relative to the base of a section. */ newsect->symbol = bfd_make_empty_symbol (abfd); if (newsect->symbol == NULL) - return NULL; + { + bfd_release (abfd, newsect); + return NULL; + } newsect->symbol->name = name; newsect->symbol->value = 0; newsect->symbol->section = newsect; @@ -721,7 +804,7 @@ bfd_make_section_anyway (abfd, name) if (BFD_SEND (abfd, _new_section_hook, (abfd, newsect)) != true) { - free (newsect); + bfd_release (abfd, newsect); return NULL; } @@ -734,7 +817,7 @@ FUNCTION bfd_make_section SYNOPSIS - asection *bfd_make_section(bfd *, CONST char *name); + asection *bfd_make_section(bfd *, const char *name); DESCRIPTION Like <<bfd_make_section_anyway>>, but return <<NULL>> (without calling @@ -746,7 +829,7 @@ DESCRIPTION asection * bfd_make_section (abfd, name) bfd *abfd; - CONST char *name; + const char *name; { asection *sect = abfd->sections; @@ -779,7 +862,6 @@ bfd_make_section (abfd, name) return bfd_make_section_anyway (abfd, name); } - /* FUNCTION bfd_set_section_flags @@ -823,14 +905,13 @@ bfd_set_section_flags (abfd, section, flags) return true; } - /* FUNCTION bfd_map_over_sections SYNOPSIS void bfd_map_over_sections(bfd *abfd, - void (*func)(bfd *abfd, + void (*func) (bfd *abfd, asection *sect, PTR obj), PTR obj); @@ -849,7 +930,6 @@ DESCRIPTION | for (p = abfd->sections; p != NULL; p = p->next) | func(abfd, p, ...) - */ /*VARARGS2*/ @@ -869,7 +949,6 @@ bfd_map_over_sections (abfd, operation, user_storage) abort (); } - /* FUNCTION bfd_set_section_size @@ -894,7 +973,7 @@ bfd_set_section_size (abfd, ptr, val) bfd_size_type val; { /* Once you've started writing to any section you cannot create or change - the size of any others. */ + the size of any others. */ if (abfd->output_has_begun) { @@ -920,15 +999,12 @@ SYNOPSIS file_ptr offset, bfd_size_type count); - DESCRIPTION Sets the contents of the section @var{section} in BFD @var{abfd} to the data starting in memory at @var{data}. The data is written to the output section starting at offset @var{offset} for @var{count} octets. - - Normally <<true>> is returned, else <<false>>. Possible error returns are: o <<bfd_error_no_contents>> - @@ -939,7 +1015,6 @@ DESCRIPTION This routine is front end to the back end function <<_bfd_set_section_contents>>. - */ #define bfd_get_section_size_now(abfd,sec) \ @@ -993,6 +1068,11 @@ bfd_set_section_contents (abfd, section, location, offset, count) break; } + /* Record a copy of the data in memory if desired. */ + if (section->contents + && location != section->contents + offset) + memcpy (section->contents + offset, location, count); + if (BFD_SEND (abfd, _bfd_set_section_contents, (abfd, section, location, offset, count))) { @@ -1024,8 +1104,6 @@ DESCRIPTION with zeroes. If no errors occur, <<true>> is returned, else <<false>>. - - */ boolean bfd_get_section_contents (abfd, section, location, offset, count) @@ -1159,7 +1237,7 @@ _bfd_strip_section_from_output (info, s) } /* If the output section is empty, remove it too. Careful about sections - that have been discarded in the link script -- they are mapped to + that have been discarded in the link script -- they are mapped to bfd_abs_section, which has no owner. */ if (!keep_os && os->owner != NULL) { |
