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-rw-r--r--src/exit/arm/__aeabi_atexit.c6
-rw-r--r--src/ldso/arm/find_exidx.c42
-rw-r--r--src/string/arm/__aeabi_memclr.c9
-rw-r--r--src/string/arm/__aeabi_memcpy.c9
-rw-r--r--src/string/arm/__aeabi_memmove.c9
-rw-r--r--src/string/arm/__aeabi_memset.c9
-rw-r--r--src/thread/arm/__set_thread_area.c49
-rw-r--r--src/thread/arm/__set_thread_area.s1
-rw-r--r--src/thread/arm/atomics.s111
9 files changed, 244 insertions, 1 deletions
diff --git a/src/exit/arm/__aeabi_atexit.c b/src/exit/arm/__aeabi_atexit.c
new file mode 100644
index 00000000..ce16101d
--- /dev/null
+++ b/src/exit/arm/__aeabi_atexit.c
@@ -0,0 +1,6 @@
+int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
+
+int __aeabi_atexit (void *obj, void (*func) (void *), void *d)
+{
+ return __cxa_atexit (func, obj, d);
+}
diff --git a/src/ldso/arm/find_exidx.c b/src/ldso/arm/find_exidx.c
new file mode 100644
index 00000000..77c4472b
--- /dev/null
+++ b/src/ldso/arm/find_exidx.c
@@ -0,0 +1,42 @@
+#define _GNU_SOURCE
+#include <link.h>
+#include <stdint.h>
+
+struct find_exidx_data {
+ uintptr_t pc, exidx_start;
+ int exidx_len;
+};
+
+static int find_exidx(struct dl_phdr_info *info, size_t size, void *ptr)
+{
+ struct find_exidx_data *data = ptr;
+ const ElfW(Phdr) *phdr = info->dlpi_phdr;
+ uintptr_t addr, exidx_start = 0;
+ int i, match = 0, exidx_len = 0;
+
+ for (i = info->dlpi_phnum; i > 0; i--, phdr++) {
+ addr = info->dlpi_addr + phdr->p_vaddr;
+ switch (phdr->p_type) {
+ case PT_LOAD:
+ match |= data->pc >= addr && data->pc < addr + phdr->p_memsz;
+ break;
+ case PT_ARM_EXIDX:
+ exidx_start = addr;
+ exidx_len = phdr->p_memsz;
+ break;
+ }
+ }
+ data->exidx_start = exidx_start;
+ data->exidx_len = exidx_len;
+ return match;
+}
+
+uintptr_t __gnu_Unwind_Find_exidx(uintptr_t pc, int *pcount)
+{
+ struct find_exidx_data data;
+ data.pc = pc;
+ if (dl_iterate_phdr(find_exidx, &data) <= 0)
+ return 0;
+ *pcount = data.exidx_len / 8;
+ return data.exidx_start;
+}
diff --git a/src/string/arm/__aeabi_memclr.c b/src/string/arm/__aeabi_memclr.c
new file mode 100644
index 00000000..a25306d7
--- /dev/null
+++ b/src/string/arm/__aeabi_memclr.c
@@ -0,0 +1,9 @@
+#include <string.h>
+#include "libc.h"
+
+void __aeabi_memclr(void *dest, size_t n)
+{
+ memset(dest, 0, n);
+}
+weak_alias(__aeabi_memclr, __aeabi_memclr4);
+weak_alias(__aeabi_memclr, __aeabi_memclr8);
diff --git a/src/string/arm/__aeabi_memcpy.c b/src/string/arm/__aeabi_memcpy.c
new file mode 100644
index 00000000..4ae5c777
--- /dev/null
+++ b/src/string/arm/__aeabi_memcpy.c
@@ -0,0 +1,9 @@
+#include <string.h>
+#include "libc.h"
+
+void __aeabi_memcpy(void *restrict dest, const void *restrict src, size_t n)
+{
+ memcpy(dest, src, n);
+}
+weak_alias(__aeabi_memcpy, __aeabi_memcpy4);
+weak_alias(__aeabi_memcpy, __aeabi_memcpy8);
diff --git a/src/string/arm/__aeabi_memmove.c b/src/string/arm/__aeabi_memmove.c
new file mode 100644
index 00000000..951e7d39
--- /dev/null
+++ b/src/string/arm/__aeabi_memmove.c
@@ -0,0 +1,9 @@
+#include <string.h>
+#include "libc.h"
+
+void __aeabi_memmove(void *dest, const void *src, size_t n)
+{
+ memmove(dest, src, n);
+}
+weak_alias(__aeabi_memmove, __aeabi_memmove4);
+weak_alias(__aeabi_memmove, __aeabi_memmove8);
diff --git a/src/string/arm/__aeabi_memset.c b/src/string/arm/__aeabi_memset.c
new file mode 100644
index 00000000..89299757
--- /dev/null
+++ b/src/string/arm/__aeabi_memset.c
@@ -0,0 +1,9 @@
+#include <string.h>
+#include "libc.h"
+
+void __aeabi_memset(void *dest, size_t n, int c)
+{
+ memset(dest, c, n);
+}
+weak_alias(__aeabi_memset, __aeabi_memset4);
+weak_alias(__aeabi_memset, __aeabi_memset8);
diff --git a/src/thread/arm/__set_thread_area.c b/src/thread/arm/__set_thread_area.c
new file mode 100644
index 00000000..61d02827
--- /dev/null
+++ b/src/thread/arm/__set_thread_area.c
@@ -0,0 +1,49 @@
+#include <stdint.h>
+#include <elf.h>
+#include "pthread_impl.h"
+#include "libc.h"
+
+#define HWCAP_TLS (1 << 15)
+
+extern const unsigned char __attribute__((__visibility__("hidden")))
+ __a_barrier_dummy[], __a_barrier_oldkuser[],
+ __a_barrier_v6[], __a_barrier_v7[],
+ __a_cas_dummy[], __a_cas_v6[], __a_cas_v7[],
+ __a_gettp_dummy[];
+
+#define __a_barrier_kuser 0xffff0fa0
+#define __a_cas_kuser 0xffff0fc0
+#define __a_gettp_kuser 0xffff0fe0
+
+extern uintptr_t __attribute__((__visibility__("hidden")))
+ __a_barrier_ptr, __a_cas_ptr, __a_gettp_ptr;
+
+#define SET(op,ver) (__a_##op##_ptr = \
+ (uintptr_t)__a_##op##_##ver - (uintptr_t)__a_##op##_dummy)
+
+int __set_thread_area(void *p)
+{
+#if !__ARM_ARCH_7A__ && !__ARM_ARCH_7R__ && __ARM_ARCH < 7
+ if (__hwcap & HWCAP_TLS) {
+ size_t *aux;
+ SET(cas, v7);
+ SET(barrier, v7);
+ for (aux=libc.auxv; *aux; aux+=2) {
+ if (*aux != AT_PLATFORM) continue;
+ const char *s = (void *)aux[1];
+ if (s[0]!='v' || s[1]!='6' || s[2]-'0'<10u) break;
+ SET(cas, v6);
+ SET(barrier, v6);
+ break;
+ }
+ } else {
+ int ver = *(int *)0xffff0ffc;
+ SET(gettp, kuser);
+ SET(cas, kuser);
+ SET(barrier, kuser);
+ if (ver < 2) a_crash();
+ if (ver < 3) SET(barrier, oldkuser);
+ }
+#endif
+ return __syscall(0xf0005, p);
+}
diff --git a/src/thread/arm/__set_thread_area.s b/src/thread/arm/__set_thread_area.s
deleted file mode 100644
index 4a4cd0d8..00000000
--- a/src/thread/arm/__set_thread_area.s
+++ /dev/null
@@ -1 +0,0 @@
-/* Replaced by C code in arch/arm/src */
diff --git a/src/thread/arm/atomics.s b/src/thread/arm/atomics.s
new file mode 100644
index 00000000..5c5b0e3e
--- /dev/null
+++ b/src/thread/arm/atomics.s
@@ -0,0 +1,111 @@
+.syntax unified
+.text
+
+.global __a_barrier
+.hidden __a_barrier
+.type __a_barrier,%function
+__a_barrier:
+ ldr ip,1f
+ ldr ip,[pc,ip]
+ add pc,pc,ip
+1: .word __a_barrier_ptr-1b
+.global __a_barrier_dummy
+.hidden __a_barrier_dummy
+__a_barrier_dummy:
+ bx lr
+.global __a_barrier_oldkuser
+.hidden __a_barrier_oldkuser
+__a_barrier_oldkuser:
+ push {r0,r1,r2,r3,ip,lr}
+ mov r1,r0
+ mov r2,sp
+ ldr ip,=0xffff0fc0
+ mov lr,pc
+ mov pc,ip
+ pop {r0,r1,r2,r3,ip,lr}
+ bx lr
+.global __a_barrier_v6
+.hidden __a_barrier_v6
+__a_barrier_v6:
+ mcr p15,0,r0,c7,c10,5
+ bx lr
+.global __a_barrier_v7
+.hidden __a_barrier_v7
+__a_barrier_v7:
+ .word 0xf57ff05b /* dmb ish */
+ bx lr
+
+.global __a_cas
+.hidden __a_cas
+.type __a_cas,%function
+__a_cas:
+ ldr ip,1f
+ ldr ip,[pc,ip]
+ add pc,pc,ip
+1: .word __a_cas_ptr-1b
+.global __a_cas_dummy
+.hidden __a_cas_dummy
+__a_cas_dummy:
+ mov r3,r0
+ ldr r0,[r2]
+ subs r0,r3,r0
+ streq r1,[r2]
+ bx lr
+.global __a_cas_v6
+.hidden __a_cas_v6
+__a_cas_v6:
+ mov r3,r0
+ mcr p15,0,r0,c7,c10,5
+1: .word 0xe1920f9f /* ldrex r0,[r2] */
+ subs r0,r3,r0
+ .word 0x01820f91 /* strexeq r0,r1,[r2] */
+ teqeq r0,#1
+ beq 1b
+ mcr p15,0,r0,c7,c10,5
+ bx lr
+.global __a_cas_v7
+.hidden __a_cas_v7
+__a_cas_v7:
+ mov r3,r0
+ .word 0xf57ff05b /* dmb ish */
+1: .word 0xe1920f9f /* ldrex r0,[r2] */
+ subs r0,r3,r0
+ .word 0x01820f91 /* strexeq r0,r1,[r2] */
+ teqeq r0,#1
+ beq 1b
+ .word 0xf57ff05b /* dmb ish */
+ bx lr
+
+.global __aeabi_read_tp
+.type __aeabi_read_tp,%function
+__aeabi_read_tp:
+
+.global __a_gettp
+.hidden __a_gettp
+.type __a_gettp,%function
+__a_gettp:
+ ldr r0,1f
+ ldr r0,[pc,r0]
+ add pc,pc,r0
+1: .word __a_gettp_ptr-1b
+.global __a_gettp_dummy
+.hidden __a_gettp_dummy
+__a_gettp_dummy:
+ mrc p15,0,r0,c13,c0,3
+ bx lr
+
+.data
+.global __a_barrier_ptr
+.hidden __a_barrier_ptr
+__a_barrier_ptr:
+ .word 0
+
+.global __a_cas_ptr
+.hidden __a_cas_ptr
+__a_cas_ptr:
+ .word 0
+
+.global __a_gettp_ptr
+.hidden __a_gettp_ptr
+__a_gettp_ptr:
+ .word 0