Summary of sections

In this section:

The compiler places code and data into sections. Based on a configuration specified in the linker configuration file, ILINK places sections in memory.

This table lists the ELF sections and blocks that are used by the IAR build tools:

Section	Description
`.bss`	Holds zero-initialized `__near` static and global variables.
`.bss.noinit`	Holds `__no_init` `__near` static and global variables.
`.bssf`	Holds zero-initialized `__far` static and global variables.
`.bssf.noinit`	Holds `__no_init` `__far` static and global variables.
`.bss_unit64kp`	This section is used internally by the linker.
`.callt0`	Holds the call table vectors generated by use of the `__callt` extended keyword.
`.const`	Holds `__near` constant data.
`.constf`	Holds `__far` constant data.
`.consth`	Holds `__huge` constant data.
`CSTACK`	Holds the stack used by C or C++ programs.
`.data`	Holds `__near`s tatic and global initialized variables.
`.data_init`	Holds initial values for `.data` sections when the linker directive `initialize` is used.
`.dataf`	Holds `__far` static and global initialized variables.
`.dataf_init`	Holds initial values for `.dataf` sections when the linker directive `initialize` is used.
`.data_unit64kp`	This section is used internally by the linker.
`FAR_HEAP`	Holds the heap used for dynamically allocated `__far` data.
`.hbss`	Holds zero-initialized `__huge` static and global variables.
`.hbss.noinit`	Holds `__no_init` `__huge` static and global variables.
`.hdata`	Holds `__huge` static and global initialized variables.
`.hdata_init`	Holds initial values for `.hdata` sections when the linker directive `initialize` is used.
`HUGE_HEAP`	Holds the heap used for dynamically allocated `__huge` data.
`.iar.dynexit`	Holds the `atexit` table.
`.iar.locale_table`	Holds the locale table for the selected locales.
`__iar_tls.$$DATA`	Holds the TLS area for the primary thread.
`__iar_tls.$$INITDATA`	Holds initial values for the TLS area.
`.init_array`	Holds a table of dynamic initialization functions.
`.intvec`	Holds the interrupt vector table
`NEAR_HEAP`	Holds the heap used for dynamically allocated `__near` data.
`.option_byte`	Holds the OCD option bytes for configuring the on-chip debugging interface.
`.preinit_array`	Holds a table of dynamic initialization functions.
`.sbss`	Holds zero-initialized static and global variables.
`.sbss.noinit`	Holds `__no_init` `__saddr` static and global variables.
`.sdata`	Holds `__saddr` static and global initialized variables.
`.sdata_init`	Holds initial values for `.sdata` sections when the linker directive `initialize` is used.
`.security_id`	Holds the Security ID that allows an authentication check before a debug session is started.
`.switch`	Holds switch tables for `__near_func` functions.
`.switchf`	Holds switch tables for `__far_func` functions.
`.tbss`	Holds thread-local zero-initialized static and global variables for the primary thread.
`.tdata`	Holds thread-local initialized static and global variables for the primary thread.
`.text`	Holds `__near_func` functions, interrupts and `__callt` functions.
`.textf`	Holds `__far_func` functions.
`.text_unit64kp`	This section is used internally by the linker.
`.wrkseg`	Holds the short address working area—an extra register variable area.
`.vector`	This section is used internally by the linker.

Table 90. Section summary

Other sections

In addition to the ELF sections used for your application, the tools use a number of other ELF sections for a variety of purposes:

Sections starting with .debug generally contain debug information in the DWARF format
Sections starting with .iar.debug contain supplemental debug information in an IAR format
The section .comment contains the tools and command lines used for building the file
Sections starting with .rel or .rela contain ELF relocation information
The section .symtab contains the symbol table for a file
The section .strtab contains the names of the symbol in the symbol table
The section .shstrtab contains the names of the sections.

IAR Embedded Workbench for RL78 5.20

Summary of sections

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