diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/arm')
| -rw-r--r-- | libpthread/nptl/sysdeps/arm/arm-unwind-resume.c | 67 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/arm/pt-arm-unwind-resume.c | 2 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/arm/rt-arm-unwind-resume.c | 1 | ||||
| -rw-r--r-- | libpthread/nptl/sysdeps/arm/unwind-resume.h | 33 |
4 files changed, 103 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/arm/arm-unwind-resume.c b/libpthread/nptl/sysdeps/arm/arm-unwind-resume.c new file mode 100644 index 000000000..ae55582ee --- /dev/null +++ b/libpthread/nptl/sysdeps/arm/arm-unwind-resume.c @@ -0,0 +1,67 @@ +/* Copyright (C) 2003, 2005, 2010 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.com>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +/* It's vitally important that _Unwind_Resume not have a stack frame; the + ARM unwinder relies on register state at entrance. So we write this in + assembly. */ + +#include <sysdep.h> + +__asm__ ( +" .globl _Unwind_Resume\n" +" .hidden _Unwind_Resume\n" +" .type _Unwind_Resume, %function\n" +"_Unwind_Resume:\n" +" " CFI_SECTIONS (.debug_frame) "\n" +" " CFI_STARTPROC "\n" +" stmfd sp!, {r4, r5, r6, lr}\n" +" " CFI_ADJUST_CFA_OFFSET (16)" \n" +" " CFI_REL_OFFSET (r4, 0) "\n" +" " CFI_REL_OFFSET (r5, 4) "\n" +" " CFI_REL_OFFSET (r6, 8) "\n" +" " CFI_REL_OFFSET (lr, 12) "\n" +" " CFI_REMEMBER_STATE "\n" +" ldr r4, 1f\n" +" ldr r5, 2f\n" +"3: add r4, pc, r4\n" +" ldr r3, [r4, r5]\n" +" mov r6, r0\n" +" cmp r3, #0\n" +" beq 4f\n" +"5: mov r0, r6\n" +" ldmfd sp!, {r4, r5, r6, lr}\n" +" " CFI_ADJUST_CFA_OFFSET (-16) "\n" +" " CFI_RESTORE (r4) "\n" +" " CFI_RESTORE (r5) "\n" +" " CFI_RESTORE (r6) "\n" +" " CFI_RESTORE (lr) "\n" +" bx r3\n" +" " CFI_RESTORE_STATE "\n" +"4: bl __libgcc_s_init\n" +" ldr r3, [r4, r5]\n" +" b 5b\n" +" " CFI_ENDPROC "\n" +" .align 2\n" +#ifdef __thumb2__ +"1: .word _GLOBAL_OFFSET_TABLE_ - 3b - 4\n" +#else +"1: .word _GLOBAL_OFFSET_TABLE_ - 3b - 8\n" +#endif +"2: .word __libgcc_s_resume(GOTOFF)\n" +" .size _Unwind_Resume, .-_Unwind_Resume\n" +); diff --git a/libpthread/nptl/sysdeps/arm/pt-arm-unwind-resume.c b/libpthread/nptl/sysdeps/arm/pt-arm-unwind-resume.c new file mode 100644 index 000000000..fd0cec4aa --- /dev/null +++ b/libpthread/nptl/sysdeps/arm/pt-arm-unwind-resume.c @@ -0,0 +1,2 @@ +__asm__ (".set __libgcc_s_init, pthread_cancel_init"); +#include <arm-unwind-resume.c> diff --git a/libpthread/nptl/sysdeps/arm/rt-arm-unwind-resume.c b/libpthread/nptl/sysdeps/arm/rt-arm-unwind-resume.c new file mode 100644 index 000000000..2641dc54c --- /dev/null +++ b/libpthread/nptl/sysdeps/arm/rt-arm-unwind-resume.c @@ -0,0 +1 @@ +#include <arm-unwind-resume.c> diff --git a/libpthread/nptl/sysdeps/arm/unwind-resume.h b/libpthread/nptl/sysdeps/arm/unwind-resume.h new file mode 100644 index 000000000..736cc835a --- /dev/null +++ b/libpthread/nptl/sysdeps/arm/unwind-resume.h @@ -0,0 +1,33 @@ +/* Definitions for unwind-resume.c. ARM (EABI) version. + Copyright (C) 2015-2016 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +/* The EABI personality routine has a different signature than the + canonical one. These macros tell sysdeps/gnu/unwind*.c how to + define __gcc_personality_v0. */ +#define PERSONALITY_PROTO \ + (_Unwind_State state, \ + struct _Unwind_Exception *ue_header, \ + struct _Unwind_Context *context) +#define PERSONALITY_ARGS \ + (state, ue_header, context) + +/* It's vitally important that _Unwind_Resume not have a stack frame; the + ARM unwinder relies on register state at entrance. So we write this in + assembly (see arm-unwind-resume.S). This macro tells the generic code + not to provide the generic C definition. */ +#define HAVE_ARCH_UNWIND_RESUME 1 |