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Use better memory strategy on Windows

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Rather than using the the rollo global to pick addresses, we select them
randomly now using a conservative vaspace.
This commit is contained in:
Justine Tunney 2024-07-20 02:20:03 -07:00
parent 6a5d4ed65b
commit 2018cac11f
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GPG key ID: BE714B4575D6E328
13 changed files with 113 additions and 124 deletions
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12
test/libc/intrin/munmap_test.c
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@ -54,6 +54,8 @@ TEST(munmap, test) {
}
TEST(munmap, punchHoleInMemory) {
if (IsWindows())
return; // needs carving
char *p;
ASSERT_NE(MAP_FAILED, (p = mmap(0, gransz * 3, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0)));
@ -72,6 +74,8 @@ TEST(munmap, punchHoleInMemory) {
}
TEST(munmap, memoryHasHole) {
if (IsWindows())
return; // needs carving
char *p;
ASSERT_NE(MAP_FAILED, (p = mmap(0, gransz * 3, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0)));
@ -86,6 +90,8 @@ TEST(munmap, memoryHasHole) {
}
TEST(munmap, blanketFree) {
if (IsWindows())
return; // needs carving
char *p;
ASSERT_NE(MAP_FAILED, (p = mmap(0, gransz * 3, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0)));
@ -104,6 +110,8 @@ TEST(munmap, blanketFree) {
}
TEST(munmap, trimLeft) {
if (IsWindows())
return; // needs carving
char *p;
ASSERT_NE(MAP_FAILED, (p = mmap(0, gransz * 2, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0)));
@ -118,6 +126,8 @@ TEST(munmap, trimLeft) {
}
TEST(munmap, trimRight) {
if (IsWindows())
return; // needs carving
char *p;
ASSERT_NE(MAP_FAILED, (p = mmap(0, gransz * 2, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0)));
@ -173,7 +183,7 @@ TEST(munmap, tinyFile_preciseUnmapSize) {
// clang-format off
TEST(munmap, tinyFile_mapThriceUnmapOnce) {
char *p = randaddr();
char *p = __maps_randaddr();
ASSERT_SYS(0, 3, open("doge", O_RDWR | O_CREAT | O_TRUNC, 0644));
ASSERT_SYS (0, 5, write(3, "hello", 5));
ASSERT_EQ(p+gransz*0, mmap(p+gransz*0, gransz, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED, -1, 0));