mirror of
https://github.com/termux/termux-packages.git
synced 2024-11-23 14:56:16 +00:00
67 lines
1.6 KiB
Diff
67 lines
1.6 KiB
Diff
+++ ./hw/xwayland/xwayland-shm.c
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@@ -35,6 +35,7 @@
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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+#include <sys/ioctl.h>
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#include "fb.h"
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#include "pixmapstr.h"
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@@ -93,6 +94,46 @@
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return os_move_fd(fd);
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}
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+#define HAVE_MEMFD_CREATE
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+static inline int memfd_create(const char *name, unsigned int flags) {
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+#ifndef __NR_memfd_create
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+#if defined __i386__
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+#define __NR_memfd_create 356
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+#elif defined __x86_64__
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+#define __NR_memfd_create 319
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+#elif defined __arm__
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+#define __NR_memfd_create 385
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+#elif defined __aarch64__
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+#define __NR_memfd_create 279
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+#endif
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+#endif
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+#ifdef __NR_memfd_create
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+ return syscall(__NR_memfd_create, name, flags);
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+#else
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+ errno = ENOSYS;
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+ return -1;
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+#endif
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+}
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+
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+static inline int ashmem_create_region(off_t size) {
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+ int ret, flags, fd = open("/dev/ashmem", O_RDWR | O_CLOEXEC);
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+ if (fd < 0)
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+ return fd;
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+ ret = ioctl(fd, /** ASHMEM_SET_SIZE */ _IOW(0x77, 3, size_t), size);
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+ if (ret < 0)
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+ goto err;
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+ flags = fcntl(fd, F_GETFD);
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+ if (flags == -1)
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+ goto err;
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+ if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1)
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+ goto err;
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+
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+ return fd;
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+ err:
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+ close(fd);
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+ return ret;
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+}
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+
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/*
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* Create a new, unique, anonymous file of the given size, and
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* return the file descriptor for it. The file descriptor is set
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@@ -142,6 +183,9 @@
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fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK);
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} else
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#endif
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+ if ((fd = ashmem_create_region(size)) >= 0) {
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+ return fd;
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+ } else
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{
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path = getenv("XDG_RUNTIME_DIR");
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if (!path) {
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