diff options
Diffstat (limited to 'gcc/ada/system-irix-n32.ads')
| -rw-r--r-- | gcc/ada/system-irix-n32.ads | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/gcc/ada/system-irix-n32.ads b/gcc/ada/system-irix-n32.ads index 398a355899f..0bdc08b1fcb 100644 --- a/gcc/ada/system-irix-n32.ads +++ b/gcc/ada/system-irix-n32.ads @@ -90,14 +90,26 @@ pragma Pure (System); -- Priority-related Declarations (RM D.1) - Max_Priority : constant Positive := 30; - Max_Interrupt_Priority : constant Positive := 31; - - subtype Any_Priority is Integer range 0 .. 31; - subtype Priority is Any_Priority range 0 .. 30; - subtype Interrupt_Priority is Any_Priority range 31 .. 31; - - Default_Priority : constant Priority := 15; + -- IRIX priorities as defined by realtime(5): + -- + -- 255 is for system-level interrupts + -- 240 - 254 are suggested for hard real-time threads + -- 200 - 239 are used by system device driver interrupt threads + -- 110 - 199 are suggested for interactive real-time applications + -- 90 - 109 are used by system daemon threads + -- 0 - 89 are suggested for soft real-time applications + -- + -- We don't express the full range of IRIX priorities. For now, we + -- handle only the subset for soft real-time applications. + + Max_Priority : constant Positive := 88; + Max_Interrupt_Priority : constant Positive := 89; + + subtype Any_Priority is Integer range 0 .. 89; + subtype Priority is Any_Priority range 0 .. 88; + subtype Interrupt_Priority is Any_Priority range 89 .. 89; + + Default_Priority : constant Priority := 44; private |