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Lines 117-122
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#endif /* HAVE_MNTENT */ |
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#endif /* HAVE_MNTENT */ |
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#include <sys/param.h> |
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#include <sys/param.h> |
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#include <pthread.h> |
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#include <pthread.h> |
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#include <stdlib.h> |
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/* We don't want sys/mman.h to be included after we redefine mmap and |
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/* We don't want sys/mman.h to be included after we redefine mmap and |
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dlmunmap. */ |
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dlmunmap. */ |
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Lines 125-131
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#if FFI_MMAP_EXEC_SELINUX |
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#if FFI_MMAP_EXEC_SELINUX |
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#include <sys/statfs.h> |
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#include <sys/statfs.h> |
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#include <stdlib.h> |
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static int selinux_enabled = -1; |
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static int selinux_enabled = -1; |
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Lines 173-195
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#endif /* !FFI_MMAP_EXEC_SELINUX */ |
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#endif /* !FFI_MMAP_EXEC_SELINUX */ |
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/* On PaX enable kernels that have MPROTECT enable we can't use PROT_EXEC. */ |
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/* On PaX enable kernels that have MPROTECT enable we can't use PROT_EXEC. */ |
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#ifdef FFI_MMAP_EXEC_EMUTRAMP_PAX |
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#define LINE_BUFFER 1024 |
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#include <stdlib.h> |
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static int emutramp_enabled = -1; |
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static int emutramp_enabled = -1; |
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static int pax_emutramp_enable = 0; |
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static int |
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static int |
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emutramp_enabled_check (void) |
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emutramp_enabled_check (void) |
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{ |
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{ |
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if (getenv ("FFI_DISABLE_EMUTRAMP") == NULL) |
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FILE *f; |
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return 1; |
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char first[LINE_BUFFER], second[LINE_BUFFER], conf_line[LINE_BUFFER]; |
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f = fopen ("/proc/self/status", "r"); |
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if (f == NULL) |
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#ifdef FFI_MMAP_EXEC_EMUTRAMP_PAX |
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pax_emutramp_enable = 1; |
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#else |
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pax_emutramp_enable = 0; |
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#endif |
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else |
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else |
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return 0; |
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while (fgets (conf_line, LINE_BUFFER, f)) { |
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sscanf (conf_line, "%s %s", first, second); |
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if (!strncmp (first, "PaX:", 4)) { |
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if (second[1] == 'E') |
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pax_emutramp_enable = 1; |
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} |
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} |
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fclose(f); |
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if (pax_emutramp_enable) { |
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if (getenv ("FFI_DISABLE_EMUTRAMP") == NULL) |
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return 1; |
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} |
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return 0; |
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} |
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} |
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#define is_emutramp_enabled() (emutramp_enabled >= 0 ? emutramp_enabled \ |
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#define is_emutramp_enabled() (emutramp_enabled >= 0 ? emutramp_enabled \ |
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: (emutramp_enabled = emutramp_enabled_check ())) |
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: (emutramp_enabled = emutramp_enabled_check ())) |
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#endif /* FFI_MMAP_EXEC_EMUTRAMP_PAX */ |
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#elif defined (__CYGWIN__) || defined(__INTERIX) |
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#elif defined (__CYGWIN__) || defined(__INTERIX) |
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