diff options
| author | Jeff Johnston <jjohnstn@redhat.com> | 2022-09-16 23:04:21 +0300 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2022-09-19 22:35:55 +0300 |
| commit | 5230eb7f8c6b43c71d7e38d138935c48de930b76 (patch) | |
| tree | f2a00763fe3edead63c1e6adcce4417a2c0ba359 /newlib/libc/stdlib | |
| parent | eb5c631ead537ac5640d7e4b1ea0edbef344d6d9 (diff) | |
Implement sysconf for Arm
- add support for using sysconf to get page size in _mallocr.c via
HAVE_SYSCONF_PAGESIZE flag set in configure.host
- set flag in configure.host for arm and add a default sysconf implementation
in libc/sys/arm that returns the page size
- the default implementation can be overridden outside newlib to allow a
different page size to improve malloc on devices with a small footprint
without needing to rebuild newlib
- this patch is based on a contribution from Torbjorn Svensson and
Niklas Dahlquist (https://ecos.sourceware.org/ml/newlib/current/017616.html)
Diffstat (limited to 'newlib/libc/stdlib')
| -rw-r--r-- | newlib/libc/stdlib/_mallocr.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/newlib/libc/stdlib/_mallocr.c b/newlib/libc/stdlib/_mallocr.c index 4b53997a3..1997b6db1 100644 --- a/newlib/libc/stdlib/_mallocr.c +++ b/newlib/libc/stdlib/_mallocr.c @@ -320,12 +320,14 @@ extern "C" { #endif #ifndef _WIN32 +#ifndef HAVE_SYSCONF_PAGESIZE #ifdef SMALL_MEMORY #define malloc_getpagesize (128) #else #define malloc_getpagesize (4096) #endif #endif +#endif #if __STD_C extern void __malloc_lock(struct _reent *); |