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-rw-r--r--arch/arm/pthread_arch.h9
-rw-r--r--arch/arm/reloc.h4
-rw-r--r--arch/i386/pthread_arch.h3
-rw-r--r--arch/microblaze/pthread_arch.h2
-rw-r--r--arch/mips/pthread_arch.h12
-rw-r--r--arch/mips/reloc.h11
-rw-r--r--arch/x86_64/pthread_arch.h3
-rw-r--r--src/env/__init_tls.c9
-rw-r--r--src/ldso/dynlink.c35
-rw-r--r--src/thread/arm/tls.s4
-rw-r--r--src/thread/pthread_create.c2
-rw-r--r--src/thread/pthread_self.c2
12 files changed, 79 insertions, 17 deletions
diff --git a/arch/arm/pthread_arch.h b/arch/arm/pthread_arch.h
index 5f96f2b0..43a1c012 100644
--- a/arch/arm/pthread_arch.h
+++ b/arch/arm/pthread_arch.h
@@ -1,6 +1,9 @@
-typedef pthread_t (*__pthread_self_func_t)(void) __attribute__((const));
+typedef char *(*__ptr_func_t)(void) __attribute__((const));
-#define __pthread_self ((__pthread_self_func_t)0xffff0fe0)
+#define __pthread_self() \
+ ((pthread_t)(((__ptr_func_t)0xffff0fe0)()+8-sizeof(struct pthread)))
+
+#define TLS_ABOVE_TP
+#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 8)
-#define CANCEL_REG_SP 16
#define CANCEL_REG_IP 18
diff --git a/arch/arm/reloc.h b/arch/arm/reloc.h
index c37af07b..b41314de 100644
--- a/arch/arm/reloc.h
+++ b/arch/arm/reloc.h
@@ -34,8 +34,8 @@ static inline void do_single_reloc(
break;
case R_ARM_TLS_TPOFF32:
*reloc_addr += def.sym
- ? def.sym->st_value - def.dso->tls_offset
- : 0 - self->tls_offset;
+ ? def.sym->st_value + def.dso->tls_offset + 8
+ : self->tls_offset + 8;
break;
}
}
diff --git a/arch/i386/pthread_arch.h b/arch/i386/pthread_arch.h
index 0ea0aaca..1c06c764 100644
--- a/arch/i386/pthread_arch.h
+++ b/arch/i386/pthread_arch.h
@@ -5,5 +5,6 @@ static inline struct pthread *__pthread_self()
return self;
}
-#define CANCEL_REG_SP 7
+#define TP_ADJ(p) (p)
+
#define CANCEL_REG_IP 14
diff --git a/arch/microblaze/pthread_arch.h b/arch/microblaze/pthread_arch.h
index 6c0ab5ad..259d3d61 100644
--- a/arch/microblaze/pthread_arch.h
+++ b/arch/microblaze/pthread_arch.h
@@ -5,4 +5,6 @@ static inline struct pthread *__pthread_self()
return self;
}
+#define TP_ADJ(p) (p)
+
#define CANCEL_REG_IP 32
diff --git a/arch/mips/pthread_arch.h b/arch/mips/pthread_arch.h
index 77b7330d..f8e35ae4 100644
--- a/arch/mips/pthread_arch.h
+++ b/arch/mips/pthread_arch.h
@@ -1,12 +1,16 @@
static inline struct pthread *__pthread_self()
{
- struct pthread *self;
#ifdef __clang__
- __asm__ __volatile__ (".word 0x7c03e83b ; move %0, $3" : "=r" (self) : : "$3" );
+ char *tp;
+ __asm__ __volatile__ (".word 0x7c03e83b ; move %0, $3" : "=r" (tp) : : "$3" );
#else
- __asm__ __volatile__ (".word 0x7c03e83b" : "=v" (self) );
+ register char *tp __asm__("$3");
+ __asm__ __volatile__ (".word 0x7c03e83b" : "=r" (tp) );
#endif
- return self;
+ return (pthread_t)(tp - 0x7000 - sizeof(struct pthread));
}
+#define TLS_ABOVE_TP
+#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
+
#define CANCEL_REG_IP (3-(union {int __i; char __b;}){1}.__b)
diff --git a/arch/mips/reloc.h b/arch/mips/reloc.h
index 785489ed..f5e9c77b 100644
--- a/arch/mips/reloc.h
+++ b/arch/mips/reloc.h
@@ -23,6 +23,17 @@ static inline void do_single_reloc(
case R_MIPS_COPY:
memcpy(reloc_addr, (void *)sym_val, sym_size);
break;
+ case R_MIPS_TLS_DTPMOD32:
+ *reloc_addr = def.dso ? def.dso->tls_id : self->tls_id;
+ break;
+ case R_MIPS_TLS_DTPREL32:
+ *reloc_addr += def.sym->st_value;
+ break;
+ case R_MIPS_TLS_TPREL32:
+ *reloc_addr += def.sym
+ ? def.sym->st_value + def.dso->tls_offset - 0x7000
+ : self->tls_offset - 0x7000;
+ break;
}
}
diff --git a/arch/x86_64/pthread_arch.h b/arch/x86_64/pthread_arch.h
index 836187f5..77c8387c 100644
--- a/arch/x86_64/pthread_arch.h
+++ b/arch/x86_64/pthread_arch.h
@@ -5,5 +5,6 @@ static inline struct pthread *__pthread_self()
return self;
}
-#define CANCEL_REG_SP 15
+#define TP_ADJ(p) (p)
+
#define CANCEL_REG_IP 16
diff --git a/src/env/__init_tls.c b/src/env/__init_tls.c
index e70025d7..ab5992ce 100644
--- a/src/env/__init_tls.c
+++ b/src/env/__init_tls.c
@@ -15,11 +15,18 @@ void *__copy_tls(unsigned char *mem)
if (!image) return mem;
void **dtv = (void *)mem;
dtv[0] = (void *)1;
+#ifdef TLS_ABOVE_TP
+ mem += sizeof(void *) * 2;
+ mem += -((uintptr_t)mem + sizeof(struct pthread)) & (align-1);
+ td = (pthread_t)mem;
+ mem += sizeof(struct pthread);
+#else
mem += __libc.tls_size - sizeof(struct pthread);
mem -= (uintptr_t)mem & (align-1);
td = (pthread_t)mem;
td->dtv = dtv;
mem -= size;
+#endif
dtv[1] = mem;
memcpy(mem, image, len);
return td;
@@ -33,7 +40,7 @@ void *__tls_get_addr(size_t *v)
static void *simple(void *p)
{
*(void **)p = p;
- return __set_thread_area(p) ? 0 : p;
+ return __set_thread_area(TP_ADJ(p)) ? 0 : p;
}
weak_alias(simple, __install_initial_tls);
diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c
index 5353979e..2ec8fb8c 100644
--- a/src/ldso/dynlink.c
+++ b/src/ldso/dynlink.c
@@ -539,10 +539,16 @@ static struct dso *load_library(const char *name)
}
p->tls_id = ++tls_cnt;
tls_align = MAXP2(tls_align, p->tls_align);
+#ifdef TLS_ABOVE_TP
+ p->tls_offset = tls_offset + ( (tls_align-1) &
+ -(tls_offset + (uintptr_t)p->tls_image) );
+ tls_offset += p->tls_size;
+#else
tls_offset += p->tls_size + p->tls_align - 1;
tls_offset -= (tls_offset + (uintptr_t)p->tls_image)
& (p->tls_align-1);
p->tls_offset = tls_offset;
+#endif
p->new_dtv = (void *)(-sizeof(size_t) &
(uintptr_t)(p->name+strlen(p->name)+sizeof(size_t)));
p->new_tls = (void *)(p->new_dtv + n_th*(tls_cnt+1));
@@ -697,6 +703,18 @@ void *__copy_tls(unsigned char *mem)
void **dtv = (void *)mem;
dtv[0] = (void *)tls_cnt;
+#ifdef TLS_ABOVE_TP
+ mem += sizeof(void *) * (tls_cnt+1);
+ mem += -((uintptr_t)mem + sizeof(struct pthread)) & (tls_align-1);
+ td = (pthread_t)mem;
+ mem += sizeof(struct pthread);
+
+ for (p=head; p; p=p->next) {
+ if (!p->tls_id) continue;
+ dtv[p->tls_id] = mem + p->tls_offset;
+ memcpy(dtv[p->tls_id], p->tls_image, p->tls_len);
+ }
+#else
mem += libc.tls_size - sizeof(struct pthread);
mem -= (uintptr_t)mem & (tls_align-1);
td = (pthread_t)mem;
@@ -706,6 +724,7 @@ void *__copy_tls(unsigned char *mem)
dtv[p->tls_id] = mem - p->tls_offset;
memcpy(dtv[p->tls_id], p->tls_image, p->tls_len);
}
+#endif
td->dtv = dtv;
return td;
}
@@ -753,9 +772,12 @@ void *__tls_get_addr(size_t *v)
static void update_tls_size()
{
- size_t below_tp = (1+tls_cnt) * sizeof(void *) + tls_offset;
- size_t above_tp = sizeof(struct pthread) + tls_align;
- libc.tls_size = ALIGN(below_tp + above_tp, tls_align);
+ libc.tls_size = ALIGN(
+ (1+tls_cnt) * sizeof(void *) +
+ tls_offset +
+ sizeof(struct pthread) +
+ tls_align * 2,
+ tls_align);
}
void *__dynlink(int argc, char **argv)
@@ -866,9 +888,16 @@ void *__dynlink(int argc, char **argv)
}
if (app->tls_size) {
app->tls_id = tls_cnt = 1;
+#ifdef TLS_ABOVE_TP
+ app->tls_offset = 0;
+ tls_offset = app->tls_size
+ + ( -((uintptr_t)app->tls_image + app->tls_size)
+ & (app->tls_align-1) );
+#else
tls_offset = app->tls_offset = app->tls_size
+ ( -((uintptr_t)app->tls_image + app->tls_size)
& (app->tls_align-1) );
+#endif
tls_align = MAXP2(tls_align, app->tls_align);
}
app->global = 1;
diff --git a/src/thread/arm/tls.s b/src/thread/arm/tls.s
new file mode 100644
index 00000000..59736ac2
--- /dev/null
+++ b/src/thread/arm/tls.s
@@ -0,0 +1,4 @@
+.global __aeabi_read_tp
+.type __aeabi_read_tp,%function
+__aeabi_read_tp:
+ ldr pc,=0xffff0fe0
diff --git a/src/thread/pthread_create.c b/src/thread/pthread_create.c
index 627ff5fb..e67616e7 100644
--- a/src/thread/pthread_create.c
+++ b/src/thread/pthread_create.c
@@ -147,7 +147,7 @@ int pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict attr,
new->canary = self->canary;
a_inc(&libc.threads_minus_1);
- ret = __clone(start, stack, flags, new, &new->tid, new, &new->tid);
+ ret = __clone(start, stack, flags, new, &new->tid, TP_ADJ(new), &new->tid);
__release_ptc();
diff --git a/src/thread/pthread_self.c b/src/thread/pthread_self.c
index a93d8129..23dbaa5e 100644
--- a/src/thread/pthread_self.c
+++ b/src/thread/pthread_self.c
@@ -10,7 +10,7 @@ static int init_main_thread()
{
__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK,
SIGPT_SET, 0, __SYSCALL_SSLEN);
- if (__set_thread_area(main_thread) < 0) return -1;
+ if (__set_thread_area(TP_ADJ(main_thread)) < 0) return -1;
main_thread->canceldisable = libc.canceldisable;
main_thread->tsd = (void **)__pthread_tsd_main;
main_thread->errno_ptr = __errno_location();
generated by cgit v1.2.1 (git 2.18.0) at 2025-10-31 13:54:52 +0000