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| author | Iain Sandoe <iain@sandoe.co.uk> | 2023-01-14 10:20:47 +0000 |
|---|---|---|
| committer | Iain Sandoe <iain@sandoe.co.uk> | 2023-01-23 17:25:49 +0000 |
| commit | bcc023e2b4dd0dc1fd1fca3ea12664d5bdade4dc (patch) | |
| tree | 3df4fabb051d4ac0c2cc7d3fb62472f7e8ef1683 | |
| parent | b457cab64038cd9b7a8481594ff673f1822681f6 (diff) | |
| download | gcc-bcc023e2b4dd0dc1fd1fca3ea12664d5bdade4dc.zip gcc-bcc023e2b4dd0dc1fd1fca3ea12664d5bdade4dc.tar.gz gcc-bcc023e2b4dd0dc1fd1fca3ea12664d5bdade4dc.tar.bz2 | |
modula-2: Fix stack size request in initPreemptive [PR108405]
As noted in the PR, the problem is that we make a request for additional
stack that violates the constraints on some systems.
This patch chooses a value that is divisible by common OS page sizes.
TODO: the user value should be checked and then an exception thrown if it
is not suitable.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
PR modula2/108405
gcc/m2/ChangeLog:
* gm2-libs-iso/Preemptive.mod (initPreemptive): Use a value for
extra space that is divisible by common OS pagesizes.
| -rw-r--r-- | gcc/m2/gm2-libs-iso/Preemptive.mod | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/m2/gm2-libs-iso/Preemptive.mod b/gcc/m2/gm2-libs-iso/Preemptive.mod index 53952e1..44aa62b 100644 --- a/gcc/m2/gm2-libs-iso/Preemptive.mod +++ b/gcc/m2/gm2-libs-iso/Preemptive.mod @@ -33,6 +33,9 @@ FROM libc IMPORT printf ; CONST debugging = FALSE ; + (* The space we request becomes part of a stack request, which generally + has constraints on size and alignment. *) + extraWorkSpace = 10 * 1024 * 1024 ; (* timer - the timer process which runs at maximum scheduling priority with @@ -107,7 +110,7 @@ BEGIN IF NOT init THEN init := TRUE ; - Create (timer, 10000000, MAX (Urgency), NIL, timerId) ; + Create (timer, extraWorkSpace, MAX (Urgency), NIL, timerId) ; Activate (timerId) END END initPreemptive ; |