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| author | Dimitar Dimitrov <dimitar@dinux.eu> | 2024-02-01 19:19:54 +0200 |
|---|---|---|
| committer | Dimitar Dimitrov <dimitar@dinux.eu> | 2024-02-21 10:35:40 +0200 |
| commit | 608d40fde0c7e7e72a0acf4f262bf76c16443be0 (patch) | |
| tree | ecf04740ae332770f661f78b24a35cc9bbba4e77 | |
| parent | e3dfc150512c331805b8701e9117bd711025800a (diff) | |
| download | gcc-608d40fde0c7e7e72a0acf4f262bf76c16443be0.zip gcc-608d40fde0c7e7e72a0acf4f262bf76c16443be0.tar.gz gcc-608d40fde0c7e7e72a0acf4f262bf76c16443be0.tar.bz2 | |
pru: Document how -mmcu option uses MCU specs
The plan to maintain PRU hardware-specific specs in newlib tree has been
abandoned in favour of a new distinct GIT project. Update the
documentation accordingly.
gcc/ChangeLog:
* doc/invoke.texi (-mmcu): Add information about MCU specs.
Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
| -rw-r--r-- | gcc/doc/invoke.texi | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 6902024..d75b284 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -30106,8 +30106,14 @@ This is already the norm for most firmware projects. @opindex mmcu @item -mmcu=@var{mcu} -Specify the PRU MCU variant to use. Check Newlib for the exact list of -supported MCUs. +Specify the PRU hardware variant to use. A correspondingly named +spec file would be loaded, passing the memory region sizes to +the linker and defining hardware-specific C macros. + +Newlib provides only the @code{sim} spec, intended for running +regression tests using a simulator. Specs for real hardware can be +obtained by installing the +@w{@uref{https://github.com/dinuxbg/gnuprumcu/,GnuPruMcu}} package. @opindex mno-relax @item -mno-relax |