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| author | Amar Takhar <amar@rtems.org> | 2016-01-18 00:37:40 -0500 |
|---|---|---|
| committer | Amar Takhar <verm@darkbeer.org> | 2016-05-02 20:51:24 -0400 |
| commit | d389819eea3a84e388935153e3be847342809da3 (patch) | |
| tree | 15cfe55f41281cead805ce87f66c5d7248caa9ce /bsp_howto/linker_script.rst | |
| parent | Remove ada_user document. (diff) | |
| download | rtems-docs-d389819eea3a84e388935153e3be847342809da3.tar.bz2 | |
Convert all Unicode to ASCII(128)
Diffstat (limited to 'bsp_howto/linker_script.rst')
| -rw-r--r-- | bsp_howto/linker_script.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/bsp_howto/linker_script.rst b/bsp_howto/linker_script.rst index 684e2db..a9f1c98 100644 --- a/bsp_howto/linker_script.rst +++ b/bsp_howto/linker_script.rst @@ -34,7 +34,7 @@ Two types of memories have to be distinguished: - ROM - non-volatile but read only Even though RAM and ROM can be found in every personal computer, -one generally doesn’t care about them. In a personal computer, +one generally doesn't care about them. In a personal computer, a program is nearly always stored on disk and executed in RAM. Things are a bit different for embedded targets: the target will execute the program each time it is rebooted or switched on. The application @@ -49,7 +49,7 @@ object file format on the Motorola m68k family of microprocessors, the following sections will be present: - *code (``.text``) section*: - is the program’s code and it should not be modified. + is the program's code and it should not be modified. This section may be placed in ROM. - *non-initialized data (``.bss``) section*: @@ -57,7 +57,7 @@ the following sections will be present: - *initialized data (``.data``) section*: holds the initialized program data which may be modified during the - program’s life. This means they have to be in RAM. + program's life. This means they have to be in RAM. On the other hand, these variables must be set to predefined values, and those predefined values have to be stored in ROM. @@ -300,7 +300,7 @@ $BSP340_ROOT/startup/linkcmds. Initialized Data ================ -Now there’s a problem with the initialized data: the ``.data`` section +Now there's a problem with the initialized data: the ``.data`` section has to be in RAM as this data may be modified during the program execution. But how will the values be initialized at boot time? @@ -354,7 +354,7 @@ section with an ``awk`` script. The details of how this is done are not relevant. Step 3 shows the final executable image as it logically appears in -the target’s non-volatile program memory. The board initialization +the target's non-volatile program memory. The board initialization code will copy the ""copy of ``.data`` section" (which are stored in ROM) to their reserved location in RAM. |