diff options
Diffstat (limited to 'toolchain/uClibc/uClibc-0.9.33-lstat-stat-fstat-Use-64bit-version-of-syscall.patch')
| -rw-r--r-- | toolchain/uClibc/uClibc-0.9.33-lstat-stat-fstat-Use-64bit-version-of-syscall.patch | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/toolchain/uClibc/uClibc-0.9.33-lstat-stat-fstat-Use-64bit-version-of-syscall.patch b/toolchain/uClibc/uClibc-0.9.33-lstat-stat-fstat-Use-64bit-version-of-syscall.patch deleted file mode 100644 index a9d1c960c..000000000 --- a/toolchain/uClibc/uClibc-0.9.33-lstat-stat-fstat-Use-64bit-version-of-syscall.patch +++ /dev/null @@ -1,179 +0,0 @@ -From b813377f6c746118a9d2625e6b29ffeec4233663 Mon Sep 17 00:00:00 2001 -From: Khem Raj <raj.khem@gmail.com> -Date: Fri, 3 Feb 2012 20:06:55 -0800 -Subject: [PATCH 3/4] lstat/stat/fstat: Use 64bit version of syscall if - available - -This is needed for stat'ing loop devices > 255 -since otherwise kernel returns EOVERFLOW becasue -it needs st_rdev/st_dev to be larger than 16bits but -in kernel it uses __old_kernel_stat for stat -syscall which has st_rdev/st_dev as unsigned short - -Add a testcase - -Signed-off-by: Khem Raj <raj.khem@gmail.com> -Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> ---- - libc/sysdeps/linux/common/fstat.c | 18 ++++++++++++++---- - libc/sysdeps/linux/common/lstat.c | 19 ++++++++++++++----- - libc/sysdeps/linux/common/stat.c | 18 ++++++++++++++---- - test/stat/stat-loop256.c | 32 ++++++++++++++++++++++++++++++++ - 4 files changed, 74 insertions(+), 13 deletions(-) - create mode 100644 test/stat/stat-loop256.c - -diff --git a/libc/sysdeps/linux/common/fstat.c b/libc/sysdeps/linux/common/fstat.c -index acc639b..4726a68 100644 ---- a/libc/sysdeps/linux/common/fstat.c -+++ b/libc/sysdeps/linux/common/fstat.c -@@ -12,18 +12,28 @@ - #include <sys/stat.h> - #include "xstatconv.h" - --#define __NR___syscall_fstat __NR_fstat --static __inline__ _syscall2(int, __syscall_fstat, int, fd, struct kernel_stat *, buf) -- - int fstat(int fd, struct stat *buf) - { - int result; -+#ifdef __NR_fstat64 -+ /* normal stat call has limited values for various stat elements -+ * e.g. uid device major/minor etc. -+ * so we use 64 variant if available -+ * in order to get newer versions of stat elements -+ */ -+ struct kernel_stat64 kbuf; -+ result = INLINE_SYSCALL(fstat64, 2, fd, &kbuf); -+ if (result == 0) { -+ __xstat32_conv(&kbuf, buf); -+ } -+#else - struct kernel_stat kbuf; - -- result = __syscall_fstat(fd, &kbuf); -+ result = INLINE_SYSCALL(fstat, 2, fd, &kbuf); - if (result == 0) { - __xstat_conv(&kbuf, buf); - } -+#endif - return result; - } - libc_hidden_def(fstat) -diff --git a/libc/sysdeps/linux/common/lstat.c b/libc/sysdeps/linux/common/lstat.c -index aa77447..db72d1f 100644 ---- a/libc/sysdeps/linux/common/lstat.c -+++ b/libc/sysdeps/linux/common/lstat.c -@@ -12,19 +12,28 @@ - #include <sys/stat.h> - #include "xstatconv.h" - --#define __NR___syscall_lstat __NR_lstat --static __inline__ _syscall2(int, __syscall_lstat, -- const char *, file_name, struct kernel_stat *, buf) -- - int lstat(const char *file_name, struct stat *buf) - { - int result; -+#ifdef __NR_lstat64 -+ /* normal stat call has limited values for various stat elements -+ * e.g. uid device major/minor etc. -+ * so we use 64 variant if available -+ * in order to get newer versions of stat elements -+ */ -+ struct kernel_stat64 kbuf; -+ result = INLINE_SYSCALL(lstat64, 2, file_name, &kbuf); -+ if (result == 0) { -+ __xstat32_conv(&kbuf, buf); -+ } -+#else - struct kernel_stat kbuf; - -- result = __syscall_lstat(file_name, &kbuf); -+ result = INLINE_SYSCALL(lstat, 2, file_name, &kbuf); - if (result == 0) { - __xstat_conv(&kbuf, buf); - } -+#endif - return result; - } - libc_hidden_def(lstat) -diff --git a/libc/sysdeps/linux/common/stat.c b/libc/sysdeps/linux/common/stat.c -index a6ab291..829f35a 100644 ---- a/libc/sysdeps/linux/common/stat.c -+++ b/libc/sysdeps/linux/common/stat.c -@@ -12,20 +12,30 @@ - #include <sys/stat.h> - #include "xstatconv.h" - --#define __NR___syscall_stat __NR_stat - #undef stat --static __inline__ _syscall2(int, __syscall_stat, -- const char *, file_name, struct kernel_stat *, buf) - - int stat(const char *file_name, struct stat *buf) - { - int result; -+#ifdef __NR_stat64 -+ /* normal stat call has limited values for various stat elements -+ * e.g. uid device major/minor etc. -+ * so we use 64 variant if available -+ * in order to get newer versions of stat elements -+ */ -+ struct kernel_stat64 kbuf; -+ result = INLINE_SYSCALL(stat64, 2, file_name, &kbuf); -+ if (result == 0) { -+ __xstat32_conv(&kbuf, buf); -+ } -+#else - struct kernel_stat kbuf; - -- result = __syscall_stat(file_name, &kbuf); -+ result = INLINE_SYSCALL(stat, 2, file_name, &kbuf); - if (result == 0) { - __xstat_conv(&kbuf, buf); - } -+#endif - return result; - } - libc_hidden_def(stat) -diff --git a/test/stat/stat-loop256.c b/test/stat/stat-loop256.c -new file mode 100644 -index 0000000..14284c1 ---- /dev/null -+++ b/test/stat/stat-loop256.c -@@ -0,0 +1,32 @@ -+#include <stdio.h> -+#include <unistd.h> -+#include <stdlib.h> -+#include <sys/stat.h> -+int main() -+{ -+ struct stat statbuf; -+ int ret = 0; -+ char* loop255 = "/dev/loop255"; -+ char* loop256 = "/dev/loop256"; -+ mode_t mode = 0660; -+ mknod(loop255, mode, 0x7ff); -+ mknod(loop256, mode, 0x100700); -+ ret = stat(loop255, &statbuf); -+ if(ret < 0) { -+ printf("stat: Cant stat %s\n",loop255); -+ unlink(loop255); -+ exit(1); -+ } -+ ret = stat(loop256, &statbuf); -+ if(ret < 0) { -+ printf("stat: Cant stat %s\n",loop256); -+ unlink(loop255); -+ unlink(loop256); -+ exit(1); -+ } -+ -+ unlink(loop255); -+ unlink(loop256); -+ exit(0); -+} -+ --- -1.7.8.3 - |