9 #include <sys/utsname.h>
15 #include "interrupt.h"
18 #include "target-arch-os.h"
20 #ifdef LISP_FEATURE_GENCGC
21 #error gencgc not ported to hpux
24 #ifdef LISP_FEATURE_C_STACK_IS_CONTROL_STACK
25 #error C_STACK_IS_CONTROL_STACK isnt supported
28 size_t os_vm_page_size;
31 os_init(char *argv[], char *envp[])
33 os_vm_page_size = BACKEND_PAGE_BYTES;
37 os_validate(os_vm_address_t addr, os_vm_size_t len)
39 os_vm_address_t actual;
40 int flags = MAP_PRIVATE | MAP_ANONYMOUS;
41 if (addr) flags |= MAP_FIXED;
43 actual = mmap(addr, len, OS_VM_PROT_ALL, flags, -1, 0);
45 if (actual == MAP_FAILED) {
47 lose("os_validate(): mmap() failure\n");
50 if (addr && (addr!=actual)) {
51 fprintf(stderr, "mmap: wanted %lu bytes at %p, actually mapped at %p\n",
52 (unsigned long) len, addr, actual);
60 os_invalidate(os_vm_address_t addr, os_vm_size_t len)
62 if (munmap(addr,len) == -1) {
64 lose("os_invalidate(): mmap() failure\n");
69 os_map(int fd, int offset, os_vm_address_t addr, os_vm_size_t len)
71 os_vm_address_t actual;
72 actual = mmap(addr, len,
74 MAP_PRIVATE | MAP_FILE | MAP_FIXED,
76 if (actual == MAP_FAILED || (addr && (addr != actual))) {
78 lose("os_map(): mmap() failure\n");
84 os_protect(os_vm_address_t addr, os_vm_size_t len, os_vm_prot_t prot)
86 if (mprotect(addr, len, prot) == -1) {
92 is_valid_lisp_addr(os_vm_address_t addr)
95 size_t ad = (size_t) addr;
97 if ((READ_ONLY_SPACE_START <= ad && ad < READ_ONLY_SPACE_END)
98 || (STATIC_SPACE_START <= ad && ad < STATIC_SPACE_END)
99 || (DYNAMIC_0_SPACE_START <= ad && ad < DYNAMIC_0_SPACE_END)
100 || (DYNAMIC_1_SPACE_START <= ad && ad < DYNAMIC_1_SPACE_END)
103 for_each_thread(th) {
104 if((size_t)(th->control_stack_start) <= ad
105 && ad < (size_t)(th->control_stack_end))
107 if((size_t)(th->binding_stack_start) <= ad
108 && ad < (size_t)(th->binding_stack_start + BINDING_STACK_SIZE))
115 * any OS-dependent special low-level handling for signals
119 sigsegv_handler(int signal, siginfo_t *info, os_context_t *context)
121 os_vm_address_t addr = arch_get_bad_addr(signal, info, context);
123 if (!cheneygc_handle_wp_violation(context, addr))
124 if (!handle_guard_page_triggered(context, addr))
125 lisp_memory_fault_error(context, addr);
126 *((os_context_register_t *) &((ucontext_t *) context)->uc_mcontext.ss_flags)
131 os_install_interrupt_handlers(void)
133 undoably_install_low_level_interrupt_handler(SIG_MEMORY_FAULT,
138 os_get_runtime_executable_path(int external)
143 /* when inside call_into_lisp, we will first jump to the stub
144 * and then the stub will jump into the lisp function. Then
145 * the lisp function will return to the stub function and
146 * the stub will return to the call_into_lisp function.
148 void *return_from_lisp_stub;
150 setup_return_from_lisp_stub (void *addr)
152 return_from_lisp_stub = addr;