[Mesa-dev] [PATCH] shader-db: Add hooks for open64 and fstat64 to intel_stub
Scott D Phillips
scott.d.phillips at intel.com
Wed Apr 4 01:32:32 UTC 2018
Jason Ekstrand <jason at jlekstrand.net> writes:
> This gets the stub working again with meson builds of Mesa
works,
Reviewed-by: Scott D Phillips <scott.d.phillips at intel.com>
> ---
> intel_stub.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 51 insertions(+)
>
> diff --git a/intel_stub.c b/intel_stub.c
> index aba82c9..ab046e5 100644
> --- a/intel_stub.c
> +++ b/intel_stub.c
> @@ -40,10 +40,13 @@
> static void *(*libc_mmap)(void *addr, size_t len, int prot, int flags,
> int fildes, off_t off);
> static int (*libc_open)(const char *pathname, int flags, mode_t mode);
> +static int (*libc_open64)(const char *pathname, int flags, mode_t mode);
> static int (*libc_close)(int fd);
> static int (*libc_ioctl)(int fd, unsigned long request, void *argp);
> static int (*libc_fstat)(int fd, struct stat *buf);
> +static int (*libc_fstat64)(int fd, struct stat64 *buf);
> static int (*libc__fxstat)(int ver, int fd, struct stat *buf);
> +static int (*libc__fxstat64)(int ver, int fd, struct stat64 *buf);
> static int (*libc_fcntl)(int fd, int cmd, int param);
> static ssize_t (*libc_readlink)(const char *pathname, char *buf, size_t bufsiz);
>
> @@ -95,6 +98,22 @@ open(const char *path, int flags, ...)
> }
>
> __attribute__ ((visibility ("default"))) int
> +open64(const char *path, int flags, ...)
> +{
> + va_list args;
> + mode_t mode;
> +
> + if (strcmp(path, "/dev/dri/renderD128") == 0)
> + return drm_fd;
> +
> + va_start(args, flags);
> + mode = va_arg(args, int);
> + va_end(args);
> +
> + return libc_open64(path, flags, mode);
> +}
> +
> +__attribute__ ((visibility ("default"))) int
> close(int fd)
> {
> if (fd == drm_fd)
> @@ -118,6 +137,20 @@ fstat(int fd, struct stat *buf)
> }
>
> __attribute__ ((visibility ("default"))) int
> +fstat64(int fd, struct stat64 *buf)
> +{
> + if (fd == drm_fd) {
> + buf->st_mode = S_IFCHR |
> + (S_IRWXG | S_IRGRP | S_IRWXU | S_IRUSR);
> + buf->st_uid = 0;
> + buf->st_gid = getgid();
> + return 0;
> + }
> +
> + return libc_fstat64(fd, buf);
> +}
> +
> +__attribute__ ((visibility ("default"))) int
> __fxstat(int ver, int fd, struct stat *buf)
> {
> if (fd == drm_fd) {
> @@ -133,6 +166,21 @@ __fxstat(int ver, int fd, struct stat *buf)
> }
>
> __attribute__ ((visibility ("default"))) int
> +__fxstat64(int ver, int fd, struct stat64 *buf)
> +{
> + if (fd == drm_fd) {
> + buf->st_mode = S_IFCHR |
> + (S_IRWXG | S_IRGRP | S_IRWXU | S_IRUSR);
> + buf->st_rdev = makedev(DRM_MAJOR, 0);
> + buf->st_uid = 0;
> + buf->st_gid = getgid();
> + return 0;
> + }
> +
> + return libc__fxstat64(ver, fd, buf);
> +}
> +
> +__attribute__ ((visibility ("default"))) int
> fcntl(int fd, int cmd, ...)
> {
> va_list args;
> @@ -248,10 +296,13 @@ static void __attribute__ ((constructor))
> init(void)
> {
> libc_open = dlsym(RTLD_NEXT, "open");
> + libc_open64 = dlsym(RTLD_NEXT, "open64");
> libc_close = dlsym(RTLD_NEXT, "close");
> libc_fcntl = dlsym(RTLD_NEXT, "fcntl");
> libc_fstat = dlsym(RTLD_NEXT, "fstat");
> + libc_fstat64 = dlsym(RTLD_NEXT, "fstat64");
> libc__fxstat = dlsym(RTLD_NEXT, "__fxstat");
> + libc__fxstat64 = dlsym(RTLD_NEXT, "__fxstat64");
> libc_ioctl = dlsym(RTLD_NEXT, "ioctl");
> libc_mmap = dlsym(RTLD_NEXT, "mmap");
> libc_readlink = dlsym(RTLD_NEXT, "readlink");
> --
> 2.7.4
>
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