[PATCH 3/4] tools/nolibc: sys.h: apply __syscall_ret() helper

From: Zhangjin Wu
Date: Sun Jun 04 2023 - 01:42:41 EST


Use __syscall_ret() helper to shrink the code lines of brk() and
getpagesize(), 10 lines removed.

Signed-off-by: Zhangjin Wu <falcon@xxxxxxxxxxx>
---
tools/include/nolibc/sys.h | 18 ++++--------------
1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index 937a8578e3d4..976f23d1fdad 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -81,13 +81,9 @@ void *sys_brk(void *addr)
static __attribute__((unused))
int brk(void *addr)
{
- void *ret = sys_brk(addr);
+ int ret = sys_brk(addr) ? 0 : -ENOMEM;

- if (!ret) {
- SET_ERRNO(ENOMEM);
- return -1;
- }
- return 0;
+ return __syscall_ret(ret);
}

static __attribute__((unused))
@@ -550,15 +546,9 @@ static unsigned long getauxval(unsigned long key);
static __attribute__((unused))
long getpagesize(void)
{
- long ret;
+ long ret = getauxval(AT_PAGESZ) ?: -ENOENT;

- ret = getauxval(AT_PAGESZ);
- if (!ret) {
- SET_ERRNO(ENOENT);
- return -1;
- }
-
- return ret;
+ return __syscall_ret(ret);
}


--
2.25.1