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| author | Georg-Johann Lay <avr@gjlay.de> | 2025-02-16 17:20:39 +0100 |
|---|---|---|
| committer | Georg-Johann Lay <avr@gjlay.de> | 2025-02-16 17:32:28 +0100 |
| commit | 22a0cba3c5a24860205086e98c0dae56f50422c1 (patch) | |
| tree | ed31f4a3a022c5fe53203abb797a4c4b874228b6 | |
| parent | d6a09ff8d81d22de2d8a701faa3fffe858638b1b (diff) | |
| download | gcc-22a0cba3c5a24860205086e98c0dae56f50422c1.zip gcc-22a0cba3c5a24860205086e98c0dae56f50422c1.tar.gz gcc-22a0cba3c5a24860205086e98c0dae56f50422c1.tar.bz2 | |
AVR: ad target/118764 - Let -mcvt set built-in macro __AVR_CVT__
gcc/
PR target/118764
* config/avr/avr-c.cc (avr_cpu_cpp_builtins)
[TARGET_CVT]: Define __AVR_CVT__.
* doc/invoke.texi (AVR Built-in Macros): Document __AVR_CVT__.
| -rw-r--r-- | gcc/config/avr/avr-c.cc | 3 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 6 |
2 files changed, 8 insertions, 1 deletions
diff --git a/gcc/config/avr/avr-c.cc b/gcc/config/avr/avr-c.cc index 6f49d3f..9176a49 100644 --- a/gcc/config/avr/avr-c.cc +++ b/gcc/config/avr/avr-c.cc @@ -420,6 +420,9 @@ avr_cpu_cpp_builtins (cpp_reader *pfile) if (TARGET_RMW) cpp_define (pfile, "__AVR_ISA_RMW__"); + if (TARGET_CVT) + cpp_define (pfile, "__AVR_CVT__"); + cpp_define_formatted (pfile, "__AVR_SFR_OFFSET__=0x%x", avr_arch->sfr_offset); diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index d1d633b..ca8e468 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -24468,7 +24468,7 @@ XJMP exit Instead, put @code{main} in section @w{@uref{https://avrdudes.github.io/avr-libc/avr-libc-user-manual/mem_sections.html#sec_dot_init,@code{.init9}}} so that no call is required. -By setting this options the user asserts that @code{main} will not return. +By setting this option the user asserts that @code{main} will not return. This option can be used for devices with very limited resources in order to save a few bytes of code and stack space. It will work as expected since @@ -24834,6 +24834,10 @@ is defined to @code{atmega8}. If @var{device} is not a device but only a core architecture like @samp{avr51}, this macro is not defined. +@item __AVR_CVT__ +The code is being compiled with option @code{-mcvt} to use a +@emph{compact vector table}. + @item __AVR_XMEGA__ The device / architecture belongs to the XMEGA family of devices. |