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return something more convenient to debug on errors

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This commit is contained in:
gbeauche 2003-10-13 19:43:09 +00:00
parent 45c30ba9f2
commit 14b51b9519
1 changed files with 10 additions and 10 deletions
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20
BasiliskII/src/Unix/sigsegv.cpp
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@ -1194,9 +1194,9 @@ static sigsegv_return_t sigsegv_test_handler(sigsegv_address_t fault_address, si
{
handler_called++;
if ((fault_address - 123) != page)
exit(1);
exit(10);
if (vm_protect((char *)((unsigned long)fault_address & -page_size), page_size, VM_PAGE_READ | VM_PAGE_WRITE) != 0)
exit(1);
exit(11);
return SIGSEGV_RETURN_SUCCESS;
}
@ -1231,39 +1231,39 @@ int main(void)
page_size = getpagesize();
if ((page = (char *)vm_acquire(page_size)) == VM_MAP_FAILED)
return 1;
return 2;
if (vm_protect((char *)page, page_size, VM_PAGE_READ) < 0)
return 1;
return 3;
if (!sigsegv_install_handler(sigsegv_test_handler))
return 1;
return 4;
page[123] = 45;
page[123] = 45;
if (handler_called != 1)
return 1;
return 5;
#ifdef HAVE_SIGSEGV_SKIP_INSTRUCTION
if (!sigsegv_install_handler(sigsegv_insn_handler))
return 1;
return 6;
if (vm_protect((char *)page, page_size, VM_PAGE_READ | VM_PAGE_WRITE) < 0)
return 1;
return 7;
for (int i = 0; i < page_size; i++)
page[i] = (i + 1) % page_size;
if (vm_protect((char *)page, page_size, VM_PAGE_NOACCESS) < 0)
return 1;
return 8;
#define TEST_SKIP_INSTRUCTION(TYPE) do { \
const unsigned int TAG = 0x12345678; \
TYPE data = *((TYPE *)(page + sizeof(TYPE))); \
volatile unsigned int effect = data + TAG; \
if (effect != TAG) \
return 1; \
return 9; \
} while (0)
#ifdef __GNUC__