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Increase stack size to 128k and guard size to 16k

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This improves our compatibility with Apple M1.
This commit is contained in:
Justine Tunney 2022-12-18 22:58:29 -08:00
parent 57c0dcdc29
commit dd04aeba1c
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
36 changed files with 109 additions and 125 deletions
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14
test/libc/runtime/brk_test.c
View file

@ -49,7 +49,7 @@ TEST(brk, underflowsEnd_returnsEinval) {
}
TEST(sbrk, underflowsEnd_returnsEinval) {
ASSERT_SYS(EINVAL, MAP_FAILED, sbrk(-PAGESIZE));
ASSERT_SYS(EINVAL, MAP_FAILED, sbrk(-GUARDSIZE));
}
TEST(sbrk, giantDelta_returnsEnomem) {
@ -73,11 +73,11 @@ TEST(sbrk, overlapsExistingMapping_failsWithEexist) {
TEST(sbrk, testGrowAndShrink) {
SPAWN(fork);
ASSERT_FALSE(testlib_memoryexists(_end));
ASSERT_SYS(0, _end, sbrk(PAGESIZE));
ASSERT_SYS(0, _end + PAGESIZE, sbrk(0));
ASSERT_SYS(0, _end, sbrk(GUARDSIZE));
ASSERT_SYS(0, _end + GUARDSIZE, sbrk(0));
ASSERT_TRUE(testlib_memoryexists(_end));
ASSERT_FALSE(testlib_memoryexists(_end + PAGESIZE));
ASSERT_SYS(0, _end + PAGESIZE, sbrk(-PAGESIZE));
ASSERT_FALSE(testlib_memoryexists(_end + GUARDSIZE));
ASSERT_SYS(0, _end + GUARDSIZE, sbrk(-GUARDSIZE));
ASSERT_FALSE(testlib_memoryexists(_end));
EXITS(0);
}
@ -85,9 +85,9 @@ TEST(sbrk, testGrowAndShrink) {
TEST(brk, testGrowAndShrink) {
SPAWN(fork);
ASSERT_FALSE(testlib_memoryexists(_end));
ASSERT_EQ(0, brk(_end + PAGESIZE));
ASSERT_EQ(0, brk(_end + GUARDSIZE));
ASSERT_TRUE(testlib_memoryexists(_end));
ASSERT_FALSE(testlib_memoryexists(_end + PAGESIZE));
ASSERT_FALSE(testlib_memoryexists(_end + GUARDSIZE));
ASSERT_EQ(0, brk(_end));
EXITS(0);
}

32
test/libc/runtime/mprotect_test.c
View file

@ -94,9 +94,9 @@ void TearDown(void) {
}
TEST(mprotect, testOkMemory) {
char *p = gc(memalign(PAGESIZE, PAGESIZE));
char *p = gc(memalign(GUARDSIZE, GUARDSIZE));
p[0] = 0;
ASSERT_NE(-1, mprotect(p, PAGESIZE, PROT_READ | PROT_WRITE));
ASSERT_NE(-1, mprotect(p, GUARDSIZE, PROT_READ | PROT_WRITE));
p[0] = 1;
EXPECT_EQ(1, p[0]);
EXPECT_FALSE(gotsegv);
@ -105,19 +105,19 @@ TEST(mprotect, testOkMemory) {
TEST(mprotect, testSegfault_writeToReadOnlyAnonymous) {
volatile char *p;
p = gc(memalign(PAGESIZE, PAGESIZE));
p = gc(memalign(GUARDSIZE, GUARDSIZE));
EXPECT_FALSE(gotsegv);
p[0] = 1;
EXPECT_FALSE(gotsegv);
EXPECT_FALSE(gotbusted);
EXPECT_NE(-1, mprotect(p, PAGESIZE, PROT_READ));
EXPECT_NE(-1, mprotect(p, GUARDSIZE, PROT_READ));
_missingno(p[0]);
EXPECT_FALSE(gotsegv);
EXPECT_FALSE(gotbusted);
p[0] = 2;
EXPECT_TRUE(gotsegv | gotbusted);
EXPECT_EQ(1, p[0]);
EXPECT_NE(-1, mprotect(p, PAGESIZE, PROT_READ | PROT_WRITE));
EXPECT_NE(-1, mprotect(p, GUARDSIZE, PROT_READ | PROT_WRITE));
}
TEST(mprotect, testExecOnly_canExecute) {
@ -137,11 +137,11 @@ TEST(mprotect, testExecOnly_canExecute) {
TEST(mprotect, testProtNone_cantEvenRead) {
volatile char *p;
p = gc(memalign(PAGESIZE, PAGESIZE));
EXPECT_NE(-1, mprotect(p, PAGESIZE, PROT_NONE));
p = gc(memalign(GUARDSIZE, GUARDSIZE));
EXPECT_NE(-1, mprotect(p, GUARDSIZE, PROT_NONE));
_missingno(p[0]);
EXPECT_TRUE(gotsegv | gotbusted);
EXPECT_NE(-1, mprotect(p, PAGESIZE, PROT_READ | PROT_WRITE));
EXPECT_NE(-1, mprotect(p, GUARDSIZE, PROT_READ | PROT_WRITE));
}
static const char kRet31337[] = {
@ -150,24 +150,24 @@ static const char kRet31337[] = {
};
TEST(mprotect, testExecJit_actuallyWorks) {
int (*p)(void) = gc(memalign(PAGESIZE, PAGESIZE));
int (*p)(void) = gc(memalign(GUARDSIZE, GUARDSIZE));
memcpy(p, kRet31337, sizeof(kRet31337));
EXPECT_NE(-1, mprotect(p, PAGESIZE, PROT_EXEC));
EXPECT_NE(-1, mprotect(p, GUARDSIZE, PROT_EXEC));
EXPECT_EQ(31337, p());
EXPECT_FALSE(gotsegv);
EXPECT_FALSE(gotbusted);
EXPECT_NE(-1, mprotect(p, PAGESIZE, PROT_READ | PROT_WRITE));
EXPECT_NE(-1, mprotect(p, GUARDSIZE, PROT_READ | PROT_WRITE));
}
TEST(mprotect, testRwxMap_vonNeumannRules) {
if (IsOpenbsd()) return; // boo
int (*p)(void) = gc(memalign(PAGESIZE, PAGESIZE));
int (*p)(void) = gc(memalign(GUARDSIZE, GUARDSIZE));
memcpy(p, kRet31337, sizeof(kRet31337));
EXPECT_NE(-1, mprotect(p, PAGESIZE, PROT_READ | PROT_WRITE | PROT_EXEC));
EXPECT_NE(-1, mprotect(p, GUARDSIZE, PROT_READ | PROT_WRITE | PROT_EXEC));
EXPECT_EQ(31337, p());
EXPECT_FALSE(gotsegv);
EXPECT_FALSE(gotbusted);
EXPECT_NE(-1, mprotect(p, PAGESIZE, PROT_READ | PROT_WRITE));
EXPECT_NE(-1, mprotect(p, GUARDSIZE, PROT_READ | PROT_WRITE));
}
TEST(mprotect, testExecuteFlatFileMapOpenedAsReadonly) {
@ -202,13 +202,13 @@ TEST(mprotect, testFileMap_canChangeToExecWhileOpenInRdwrMode) {
}
TEST(mprotect, testBadProt_failsEinval) {
volatile char *p = gc(memalign(PAGESIZE, PAGESIZE));
volatile char *p = gc(memalign(GUARDSIZE, GUARDSIZE));
EXPECT_EQ(-1, mprotect(p, 9999, -1));
EXPECT_EQ(EINVAL, errno);
}
TEST(mprotect, testZeroSize_doesNothing) {
volatile char *p = gc(memalign(PAGESIZE, PAGESIZE));
volatile char *p = gc(memalign(GUARDSIZE, GUARDSIZE));
EXPECT_NE(-1, mprotect(p, 0, PROT_READ));
p[0] = 1;
EXPECT_FALSE(gotsegv);