diff options
| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2013-03-17 16:13:28 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2013-03-17 16:13:28 +0000 |
| commit | 2b2bbf6433f7271abce9c3e4cbdf2f456fcbeca3 (patch) | |
| tree | df9b3967acb62fff1190b1625cf373b8ed95f48a /nuttx/ChangeLog | |
| parent | db8769c0dbd3a9c33b60863a62f33cc5158bf7bd (diff) | |
| download | nuttx-2b2bbf6433f7271abce9c3e4cbdf2f456fcbeca3.tar.gz nuttx-2b2bbf6433f7271abce9c3e4cbdf2f456fcbeca3.tar.bz2 nuttx-2b2bbf6433f7271abce9c3e4cbdf2f456fcbeca3.zip | |
Add support for nested system calls
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5752 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/ChangeLog')
| -rw-r--r-- | nuttx/ChangeLog | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index 10201d7a1..8c7a986f3 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -4356,4 +4356,9 @@ system call (2013-03-16). * arch/arm/src/armv[6|7]-m/up_schedulesigaction.c: Need make sure we are in kernel mode before switching to kernel-mode signal handler - trampoline. + trampoline (2013-03-16). + * arch/arm/include/armv[6|7]-m/irq.h, and arch/arm/src/armv[6|7]-m/up_svcall.c: + Add support for nested system calls. In the current design, this can + happen only under one condition: When the kernel system function calls + back into user space in order to allocate user space memory. So it is + expected that the maximum nesting level will be only 2. |