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libc: Let _SC_PAGESIZE return 4096 when CONFIG_MM_PGSIZE isn't defined

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since most application doesn't expect the page size equals one

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao 2023-01-14 22:40:23 +08:00 committed by Petro Karashchenko
parent 28027d0bee
commit ee9787a254
1 changed files with 7 additions and 5 deletions
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12
libs/libc/unistd/lib_sysconf.c
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@ -30,6 +30,12 @@
#include <sched.h>
#include <errno.h>
#ifdef CONFIG_MM_PGSIZE
# define DEFAULT_MM_PGSIZE CONFIG_MM_PGSIZE
#else
# define DEFAULT_MM_PGSIZE 4096
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
@ -226,11 +232,7 @@ long sysconf(int name)
return 1;
case _SC_PAGESIZE:
#ifdef CONFIG_MM_PGSIZE
return CONFIG_MM_PGSIZE;
#else
return 1;
#endif
return DEFAULT_MM_PGSIZE;
default:
#if 0 /* Assume valid but not implemented for the time being */