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Support thread local storage

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This commit is contained in:
Justine Tunney 2022-05-16 13:20:08 -07:00
parent 91ee2b19d4
commit 55de4ca6b5
197 changed files with 1483 additions and 874 deletions
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43
test/libc/runtime/clone_test.c
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@ -19,7 +19,9 @@
#include "libc/calls/calls.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/spinlock.h"
#include "libc/mem/mem.h"
#include "libc/runtime/stack.h"
#include "libc/sysv/consts/clone.h"
#include "libc/sysv/consts/map.h"
@ -28,7 +30,7 @@
#include "libc/testlib/testlib.h"
#include "libc/time/time.h"
char *stack;
char *stack, *tls;
int x, me, thechilde;
_Alignas(64) volatile char lock;
@ -37,18 +39,31 @@ void SetUp(void) {
lock = 0;
me = gettid();
thechilde = 0;
tls = calloc(1, 512);
*(intptr_t *)tls = (intptr_t)tls;
*(intptr_t *)(tls + 0x30) = (intptr_t)tls;
*(int *)(tls + 0x3c) = 31337;
ASSERT_NE(MAP_FAILED, (stack = mmap(0, GetStackSize(), PROT_READ | PROT_WRITE,
MAP_STACK | MAP_ANONYMOUS, -1, 0)));
}
void TearDown(void) {
tkill(thechilde, SIGKILL), errno = 0;
if (thechilde) {
tkill(thechilde, SIGKILL);
errno = 0;
}
sched_yield();
EXPECT_SYS(0, 0, munmap(stack, GetStackSize()));
free(tls);
}
int CloneTest1(void *arg) {
x = 42;
if (!IsWindows()) {
ASSERT_EQ(31337, errno);
} else {
errno = 31337;
ASSERT_EQ(31337, errno);
}
ASSERT_EQ(23, (intptr_t)arg);
thechilde = gettid();
ASSERT_NE(gettid(), getpid());
@ -56,15 +71,33 @@ int CloneTest1(void *arg) {
return 0;
}
int DoNothing(void *arg) {
return 0;
}
void __setup_tls(void);
TEST(clone, test1) {
int tid;
_spinlock(&lock);
ASSERT_NE(-1, (tid = clone(CloneTest1, stack, GetStackSize(),
CLONE_THREAD | CLONE_VM | CLONE_FS | CLONE_FILES |
CLONE_SIGHAND,
(void *)23, 0, 0, 0, 0)));
CLONE_SIGHAND | CLONE_SETTLS,
(void *)23, 0, tls, 512, 0)));
_spinlock(&lock);
ASSERT_EQ(42, x);
ASSERT_NE(me, tid);
ASSERT_EQ(tid, thechilde);
ASSERT_EQ(0, errno);
errno = 31337;
ASSERT_EQ(31337, errno);
return;
intptr_t *p;
asm("movq\t%%fs:0x30,%0" : "=a"(p));
kprintf("%fs:0x30 = %p\n", p);
for (int i = 0; i < 64; ++i) {
kprintf("0x%.5x = %p\n", i * 8, p[i]);
}
kprintf("\n");
}