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Bug 530448 - Make TestPoisonArea.cpp compile on mingw, r=zwol

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This commit is contained in:
Jacek Caban 2010-01-05 18:29:08 -05:00
parent b0ab558420
commit e787295d9f
1 changed files with 37 additions and 19 deletions
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56
layout/base/tests/TestPoisonArea.cpp
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@ -394,6 +394,27 @@ ReserveNegativeControl()
return (uintptr_t)result;
}
#ifdef _WIN32
static BOOL
IsBadExecPtr(uintptr_t ptr)
{
BOOL ret = false;
#ifdef _MSC_VER
__try {
((void (*)())ptr)();
} __except (EXCEPTION_EXECUTE_HANDLER) {
ret = true;
}
#else
printf("INFO | exec test not supported on MinGW build\n");
// We do our best
ret = IsBadReadPtr((const void*)ptr, 1);
#endif
return ret;
}
#endif
/* Test each page. */
static bool
TestPage(const char *pagelabel, uintptr_t pageaddr, int should_succeed)
@ -413,15 +434,23 @@ TestPage(const char *pagelabel, uintptr_t pageaddr, int should_succeed)
}
#ifdef _WIN32
__try {
unsigned char scratch;
switch (test) {
case 0: scratch = *(volatile unsigned char *)opaddr; break;
case 1: ((void (*)())opaddr)(); break;
case 2: *(volatile unsigned char *)opaddr = 0; break;
default: abort();
}
BOOL badptr;
switch (test) {
case 0: badptr = IsBadReadPtr((const void*)opaddr, 1); break;
case 1: badptr = IsBadExecPtr(opaddr); break;
case 2: badptr = IsBadWritePtr((void*)opaddr, 1); break;
default: abort();
}
if (badptr) {
if (should_succeed) {
printf("TEST-UNEXPECTED-FAIL | %s %s\n", oplabel, pagelabel);
failed = true;
} else {
printf("TEST-PASS | %s %s\n", oplabel, pagelabel);
}
} else {
// if control reaches this point the probe succeeded
if (should_succeed) {
printf("TEST-PASS | %s %s\n", oplabel, pagelabel);
@ -429,17 +458,6 @@ TestPage(const char *pagelabel, uintptr_t pageaddr, int should_succeed)
printf("TEST-UNEXPECTED-FAIL | %s %s\n", oplabel, pagelabel);
failed = true;
}
} __except (EXCEPTION_EXECUTE_HANDLER) {
// Unfortunately, there is no equivalent of strsignal().
DWORD code = GetExceptionCode();
if (should_succeed) {
printf("TEST-UNEXPECTED-FAIL | %s %s | exception code %x\n",
oplabel, pagelabel, code);
failed = true;
} else {
printf("TEST-PASS | %s %s | exception code %x\n",
oplabel, pagelabel, code);
}
}
#else
pid_t pid = fork();