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Searched refs:altstack (Results 1 – 3 of 3) sorted by relevance

/linux-6.15/tools/testing/selftests/x86/
H A Dsigaltstack.c67 static void test_sigaltstack(void *altstack, unsigned long size) in test_sigaltstack() argument
69 if (setup_altstack(altstack, size)) in test_sigaltstack()
91 void *altstack; in main() local
95 altstack = mmap(NULL, at_minstack_size + SIGSTKSZ, PROT_READ | PROT_WRITE, in main()
97 if (altstack == MAP_FAILED) in main()
101 test_sigaltstack(altstack, ENFORCED_MINSIGSTKSZ + 1); in main()
103 test_sigaltstack(altstack, at_minstack_size + SIGSTKSZ); in main()
H A Damx.c230 void *altstack; in alloc_altstack() local
232 altstack = mmap(NULL, size, PROT_READ | PROT_WRITE, in alloc_altstack()
235 if (altstack == MAP_FAILED) in alloc_altstack()
238 return altstack; in alloc_altstack()
267 void *altstack; in test_dynamic_sigaltstack() local
284 altstack = alloc_altstack(enough_size); in test_dynamic_sigaltstack()
293 setup_altstack(altstack, small_size, SUCCESS_EXPECTED); in test_dynamic_sigaltstack()
302 setup_altstack(altstack, enough_size, SUCCESS_EXPECTED); in test_dynamic_sigaltstack()
312 setup_altstack(altstack, small_size, FAIL_EXPECTED); in test_dynamic_sigaltstack()
/linux-6.15/Documentation/arch/x86/
H A Dxstate.rst69 sigaltstack(2) results in -ENOMEM if the requested altstack is too small