36 lines
1.2 KiB
Text
36 lines
1.2 KiB
Text
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We don't have posix_fallocate.
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Index: glfw/backend_utils.c
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--- glfw/backend_utils.c.orig
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+++ glfw/backend_utils.c
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@@ -373,7 +373,7 @@ GLFWAPI char* utf_8_strndup(const char* source, size_t
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* receive SIGBUS on accessing mmap()'ed file contents instead.
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*/
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int createAnonymousFile(off_t size) {
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- int ret, fd = -1, shm_anon = 0;
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+ int ret, fd = -1;
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#ifdef HAS_MEMFD_CREATE
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fd = glfw_memfd_create("glfw-shared", MFD_CLOEXEC | MFD_ALLOW_SEALING);
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if (fd < 0) return -1;
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@@ -383,10 +383,6 @@ int createAnonymousFile(off_t size) {
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// There is also no need to check for the return value, we couldn’t do
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// anything with it anyway.
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fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL);
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-#elif defined(SHM_ANON)
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- fd = shm_open(SHM_ANON, O_RDWR | O_CLOEXEC, 0600);
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- if (fd < 0) return -1;
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- shm_anon = 1;
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#else
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static const char template[] = "/glfw-shared-XXXXXX";
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const char* path;
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@@ -410,8 +406,7 @@ int createAnonymousFile(off_t size) {
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if (fd < 0)
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return -1;
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#endif
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- // posix_fallocate does not work on SHM descriptors
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- ret = shm_anon ? ftruncate(fd, size) : posix_fallocate(fd, 0, size);
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+ ret = ftruncate(fd, size);
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if (ret != 0)
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{
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close(fd);
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