Re: [rtems-libbsd commit] sys/kern: Add VFS support
On 09/02/2022 22:58, Chris Johns wrote: On 9/2/22 7:43 pm, Sebastian Huber wrote: On 09/02/2022 09:41, Sebastian Huber wrote: On 08/02/2022 11:07, Chris Johns wrote: It seems that the commit is not present in the master branch. This means all the work will be lost when we update to a newer FreeBSD baseline. Yes. It is an out standing task that I need to get funding for. What are your plans and if you are looking to update, timeline? The last update was in 2019, so we ship a pretty outdated FreeBSD in libbsd. I currently estimate the work to do an update, but I don't have a timeline. Actually the last update was "Update to FreeBSD stable/12 2020-02-10". Which branch or branches are you referring too? The 6-freebsd-12 and master branches. Updating the 6-freebsd-12 branch is not an issue. If we update the master branch to the latest FreeBSD main branch, then some work done for the 6-freebsd-12 branch is lost. -- embedded brains GmbH Herr Sebastian HUBER Dornierstr. 4 82178 Puchheim Germany email: sebastian.hu...@embedded-brains.de phone: +49-89-18 94 741 - 16 fax: +49-89-18 94 741 - 08 Registergericht: Amtsgericht München Registernummer: HRB 157899 Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas Dörfler Unsere Datenschutzerklärung finden Sie hier: https://embedded-brains.de/datenschutzerklaerung/ ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
[PATCH] added malloc usable size and test
---
cpukit/include/rtems/libcsupport.h| 8 ++-
cpukit/libcsupport/src/mallocusablesize.c | 28 +++
spec/build/cpukit/librtemscpu.yml | 1 +
testsuites/libtests/malloctest/init.c | 15 +++-
4 files changed, 50 insertions(+), 2 deletions(-)
create mode 100644 cpukit/libcsupport/src/mallocusablesize.c
diff --git a/cpukit/include/rtems/libcsupport.h
b/cpukit/include/rtems/libcsupport.h
index f4be4cfc9a..1fe0f6735f 100644
--- a/cpukit/include/rtems/libcsupport.h
+++ b/cpukit/include/rtems/libcsupport.h
@@ -73,7 +73,12 @@ extern size_t malloc_free_space(void);
* Find amount of free heap remaining.
*/
extern int malloc_info(Heap_Information_block *the_info);
-
+/**
+ * @brief Get malloc status information.
+ *
+ * Find the usable size of the block of memory .
+ */
+extern size_t malloc_usable_size(void *ptr);
/*
* Prototypes required to install newlib reentrancy user extension
*/
@@ -185,6 +190,7 @@ bool rtems_resource_snapshot_equal(
*/
bool rtems_resource_snapshot_check(const rtems_resource_snapshot *snapshot);
+
/** @} */
#ifdef __cplusplus
diff --git a/cpukit/libcsupport/src/mallocusablesize.c
b/cpukit/libcsupport/src/mallocusablesize.c
new file mode 100644
index 00..10114182a6
--- /dev/null
+++ b/cpukit/libcsupport/src/mallocusablesize.c
@@ -0,0 +1,28 @@
+/*
+ * COPYRIGHT (c) 1989-2010.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include
+#include
+#include
+
+Heap_Control *heap_ptr;
+size_t malloc_usable_size(void *ptr) {
+ uintptr_t size;
+ if (ptr == NULL) {
+return 0;
+ }
+
+ heap_ptr = malloc_get_heap_pointer();
+ _Heap_Size_of_alloc_area(heap_ptr, ptr, &size);
+
+ return size;
+}
diff --git a/spec/build/cpukit/librtemscpu.yml
b/spec/build/cpukit/librtemscpu.yml
index 7d6dbae0db..5902008c94 100644
--- a/spec/build/cpukit/librtemscpu.yml
+++ b/spec/build/cpukit/librtemscpu.yml
@@ -670,6 +670,7 @@ source:
- cpukit/libcsupport/src/lseek.c
- cpukit/libcsupport/src/lstat.c
- cpukit/libcsupport/src/malloc.c
+- cpukit/libcsupport/src/mallocusablesize.c
- cpukit/libcsupport/src/malloc_deferred.c
- cpukit/libcsupport/src/malloc_dirtier.c
- cpukit/libcsupport/src/malloc_walk.c
diff --git a/testsuites/libtests/malloctest/init.c
b/testsuites/libtests/malloctest/init.c
index a33764177d..2202546719 100644
--- a/testsuites/libtests/malloctest/init.c
+++ b/testsuites/libtests/malloctest/init.c
@@ -1362,6 +1362,18 @@ static void test_alloc_zero_size(void)
rtems_test_assert( p == NULL );
rtems_test_assert( errno == -1 );
}
+static void test_usablesize(void)
+{
+ int * a = malloc(sizeof( int )*100);
+ int alloc_size=sizeof( int ) *100 ;
+ rtems_test_assert( malloc_usable_size(a) <= alloc_size +
CPU_HEAP_ALIGNMENT);
+ free(a);
+
+ char * b = malloc(sizeof(char)*100);
+ int alloc_size2=sizeof(char) *100 ;
+ rtems_test_assert( malloc_usable_size ( b ) <= alloc_size2 +
CPU_HEAP_ALIGNMENT);
+ free(b);
+}
rtems_task Init(
rtems_task_argument argument
@@ -1405,6 +1417,7 @@ rtems_task Init(
test_protected_heap_info();
test_rtems_heap_allocate_aligned_with_boundary();
test_rtems_malloc();
+ test_usablesize();
test_rtems_calloc();
test_greedy_allocate();
test_alloc_zero_size();
@@ -1524,4 +1537,4 @@ RTEMS_SYSINIT_ITEM(
test_early_malloc,
RTEMS_SYSINIT_INITIAL_EXTENSIONS,
RTEMS_SYSINIT_ORDER_FIRST
-);
+);
\ No newline at end of file
--
2.35.1
___
devel mailing list
devel@rtems.org
http://lists.rtems.org/mailman/listinfo/devel
Re: [PATCH rtems-docs] Add option --build-manuals to build multiple specific manuals.
On 12/2/22 3:37 am, Shashvat wrote: > Hi Gedare!! > > Is there a ticket associated with this, or any feature request? Or >> just something you thought of doing? >> > > I am sorry I should have mentioned the motive behind the option. > I was planning to work on ticket # which works on a specific > posix-users manual afaik. I wanted waf to build only this particular manual > so asked Chris on discord if it is possible and he told me how it was > broken, and that it would be good to add an option that enables this. I think this is nice feature to have if you are concentrating on a specific manual. Chris ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
Re: [PATCH] bsp/atsam: Improve UART / USART tx performance
ok for 5 and master
On Fri, Feb 11, 2022 at 1:07 AM Christian Mauderer
wrote:
>
> Put the next character into the send buffer if the buffer is empty and
> not when the last character has been sent out to the line. This improves
> the performance slightly.
>
> Before that patch, the receive path was faster than the transmit path.
> Therefore a simple echo could drop characters on a busy connection.
> With this patch sending and receiving has about the same performance so
> that no characters are lost.
>
> Fixes #4610
> ---
>
>
> Note: The problem exists on 5 and master. The ticket for 5 is #4611. I would
> like to push this patch to both branches.
>
>
>
> bsps/arm/atsam/console/console.c | 9 +
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/bsps/arm/atsam/console/console.c
> b/bsps/arm/atsam/console/console.c
> index 5ef4327e11..0802ca2155 100644
> --- a/bsps/arm/atsam/console/console.c
> +++ b/bsps/arm/atsam/console/console.c
> @@ -145,8 +145,9 @@ static void atsam_uart_interrupt(void *arg)
> }
>}
>
> - if (ctx->transmitting && (sr & UART_SR_TXEMPTY) != 0) {
> + while (ctx->transmitting && (sr & UART_SR_TXRDY) != 0) {
> rtems_termios_dequeue_characters(tty, 1);
> +sr = regs->UART_SR;
>}
> }
> #endif
> @@ -408,16 +409,16 @@ static void atsam_uart_write(
>if (len > 0) {
> ctx->transmitting = true;
> regs->UART_THR = buf[0];
> -regs->UART_IER = UART_IDR_TXEMPTY;
> +regs->UART_IER = UART_IDR_TXRDY;
>} else {
> ctx->transmitting = false;
> -regs->UART_IDR = UART_IDR_TXEMPTY;
> +regs->UART_IDR = UART_IDR_TXRDY;
>}
> #else
>size_t i;
>
>for (i = 0; i < len; ++i) {
> -while ((regs->UART_SR & UART_SR_TXEMPTY) == 0) {
> +while ((regs->UART_SR & UART_SR_TXRDY) == 0) {
>/* Wait */
> }
>
> --
> 2.31.1
>
> ___
> devel mailing list
> devel@rtems.org
> http://lists.rtems.org/mailman/listinfo/devel
___
devel mailing list
devel@rtems.org
http://lists.rtems.org/mailman/listinfo/devel
