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authorMike Frysinger <vapier@gentoo.org>2006-02-04 02:17:00 +0000
committerMike Frysinger <vapier@gentoo.org>2006-02-04 02:17:00 +0000
commitbd5827f470708dae107797998ccd3022d52f1a9d (patch)
tree6251c5c0514d267e118d1feb8bfeb64927a6d1ec /libc/sysdeps/linux
parentcfdee7ee021f45da878500d0a40c2a03fe99303a (diff)
use just __getdents64 rather than either __getdents and __getdents64 when possible (saves space and gives us access to d_type most of the time)
Diffstat (limited to 'libc/sysdeps/linux')
-rw-r--r--libc/sysdeps/linux/common/getdents.c22
-rw-r--r--libc/sysdeps/linux/common/getdents64.c13
2 files changed, 24 insertions, 11 deletions
diff --git a/libc/sysdeps/linux/common/getdents.c b/libc/sysdeps/linux/common/getdents.c
index 7056c3ebc..0c6eba658 100644
--- a/libc/sysdeps/linux/common/getdents.c
+++ b/libc/sysdeps/linux/common/getdents.c
@@ -16,6 +16,16 @@
#include <sys/types.h>
#include <sys/syscall.h>
+/* With newer versions of linux, the getdents syscall returns d_type
+ * information after the name field. Someday, we should add support for
+ * that instead of always calling getdents64 ...
+ *
+ * See __ASSUME_GETDENTS32_D_TYPE in glibc's kernel-features.h for specific
+ * version / arch details.
+ */
+
+#if ! defined __UCLIBC_HAS_LFS__ || ! defined __NR_getdents64
+
libc_hidden_proto(memcpy)
libc_hidden_proto(lseek)
@@ -25,10 +35,10 @@ libc_hidden_proto(lseek)
struct kernel_dirent
{
- long d_ino;
- __kernel_off_t d_off;
- unsigned short d_reclen;
- char d_name[256];
+ long int d_ino;
+ __kernel_off_t d_off;
+ unsigned short int d_reclen;
+ char d_name[256];
};
#define __NR___syscall_getdents __NR_getdents
@@ -89,3 +99,7 @@ ssize_t attribute_hidden __getdents (int fd, char *buf, size_t nbytes)
}
return (char *) dp - buf;
}
+
+attribute_hidden strong_alias(__getdents,__getdents64)
+
+#endif
diff --git a/libc/sysdeps/linux/common/getdents64.c b/libc/sysdeps/linux/common/getdents64.c
index aa30bd661..da193ebab 100644
--- a/libc/sysdeps/linux/common/getdents64.c
+++ b/libc/sysdeps/linux/common/getdents64.c
@@ -17,7 +17,7 @@
#include <sys/types.h>
#include <sys/syscall.h>
-#if defined __UCLIBC_HAS_LFS__ && defined __NR_getdents64
+#if defined __UCLIBC_HAS_LFS__ && defined __NR_getdents64
libc_hidden_proto(memcpy)
libc_hidden_proto(lseek64)
@@ -94,10 +94,9 @@ ssize_t attribute_hidden __getdents64 (int fd, char *buf, size_t nbytes)
}
return (char *) dp - buf;
}
-#else
-extern ssize_t __getdents (int fd, char *buf, size_t nbytes) attribute_hidden;
-ssize_t attribute_hidden __getdents64 (int fd, char *buf, size_t nbytes)
-{
- return(__getdents(fd, buf, nbytes));
-}
+
+/* since getdents doesnt give us d_type but getdents64 does, try and
+ * use getdents64 as much as possible */
+attribute_hidden strong_alias(__getdents64,__getdents)
+
#endif /* __UCLIBC_HAS_LFS__ */