Makefile.in: Set and use UNWIND_H.

2005-06-28  Paul Brook  <paul@codesourcery.com>

gcc/
	* Makefile.in: Set and use UNWIND_H.  Install as unwind.h.
	* c-decl.c (finish_decl): Call default_init_unwind_resume_libfunc.
	* except.c (add_ehspec_entry): Generate arm eabi filter lists.
	(assign_filter_values): Ditto.
	(output_ttype): New function.
	(output_function_exception_table): Use output_ttype.  Generate arm
	eabi filter lists.
	(default_init_unwind_resume_libfunc): New function.
	* except.h (default_init_unwind_resume_libfunc): Add prototype.
	* optabs.c (init_optabs): Don't set unwind_resume_libfunc.
	* opts.c (decode_options): Use targetm.unwind_tables_default.
	* target-def.h (TARGET_ASM_TTYPE): Provide and use definition.
	(TARGET_ARM_EABI_UNWINDER, TARGET_UNWIND_TABLES_DEFAULT): Ditto.
	* target.h (struct gcc_target): Add asm.ttype, unwind_tables_default
	and arm_eabi_unwinder.
	* unwind-c.c: Support Arm EABI unwinder.
	* unwind.h: Rename ...
	* unwind-generic.h: ... To this.
	* doc/tm.texi (TARGET_ASM_TTYPE, TARGET_ARM_EABI_UNWINDER): Document.
	(TARGET_UNWID_TABLES_DEFAULT): Document.

	* config/arm/arm-protos.h (arm_output_fn_unwind): Add prototype.
	* config/arm/arm.c (arm_unwind_emit, arm_output_ttype): New functions.
	(TARGET_UNWIND_EMIT, TARGET_ASM_TTYPE, TARGET_ARM_EABI_UNWINDER):
	Define.
	(thumb_pushpop, thumb_output_function_prologue): Output unwinding
	directives.
	(arm_unwind_emit_stm, arm_unwind_emit_set): New functions.
	* config/arm/arm.h (MUST_USE_SJLJ_EXCEPTIONS): Only define when
	!TARGET_UNWIND_INFO.
	(ARM_OUTPUT_FN_UNWIND, ARM_EABI_UNWIND_TABLES): Define.
	* config/arm/bpabi.h (TARGET_UNWIND_INFO): Define.
	* config/arm/elf.h (ASM_DECLARE_FUNCTION_NAME,
	ASM_DECLARE_FUNCTION_SIZE): Use ARM_OUTPUT_FN_UNWIND.
	* config/arm/lib1funcs.asm: Include libunwind.S.
	* config/arm/libgcc-bpabi.ver: Add unwinding routines.
	* config/arm/libunwind.S: New file.
	* config/arm/pr-support.c: New file.
	* config/arm/t-bpabi (LIB1ASMFUNCS): Add _unwind.
	(UNWIND_H, LIB2ADDEH, LIB2ADDEHDEP): Set.
	* config/arm/t-symbian (UNWIND_H, LIB2ADDEH, LIB2ADDEHDEP): Set.
	* config/arm/unwind-arm.c: New file.
	* config/arm/unwind-arm.h: New file.
	* config/i386/t-netware (USER_H): Remove unwind.h.
	* config/ia64/ia64.h (TARGET_UNWIND_TABLES_DEFAULT): Define.

gcc/cp/
	* Make-lang.in (cp/except.o): Depend on $(TARGET_H)
	* except.c: Include target.h.
	(init_exception_processing): Initialize unwind_resume_libfunc.
	* doc/tm.texi: Document TARGET_ASM_TTYPE
gcc/ada/
	* misc.c (gnat_init_gcc_eh): Call default_init_unwind_resume_libfunc.
gcc/java/
	* decl.c (java_init_decl_processing): Call
	default_init_unwind_resume_libfunc.
gcc/objc/
	* objc-act.c (objc_init_exceptions): Call
	default_init_unwind_resume_libfunc.
libstdc++/
	* acinclude.m4 (GLIBCXX_ENABLE_SJLJ_EXCEPTIONS): Check for
	__cxa_end_cleanup.
	* libsupc++/Makefile.am (sources): Add eh_call.c and eh_arm.c.
	* libsupc++/eh_arm.cc: New file.
	* libsupc++/eh_call.cc: New file.
	* libsupc++/eh_catch.cc (__cxa_get_exception_ptr): Use
	__gxx_caught_object.
	(__cxa_begin_catch): Ditto. Use __is_gxx_exception_class. Call
	_Unwind_Complete when using the ARM EABI.
	(__cxa_end_catch): Use __is_gxx_exception_class.
	* libsupc++/eh_personality.cc: Define NO_SIZE_OF_ENCODED_VALUE when
	using the ARM EABI.
	(save_caught_exception, restore_caught_exception): New functions.
	(_throw_typet): New typedef.
	(get_ttype_entry, get_adjusted_ptr, check_exception_spec): Add ARM
	EABI implementations.
	(PERSONALITY_FUNCTION): Use new functions.  Addd support for ARM EABI
	unwinding libary.
	(__cxa_unexpected): Disable when using the ARM EABI.
	* libsupc++/eh_throw.cc (__cxa_throw): Use __GXX_INIT_EXCEPTION_CLASS.
	(__cxa_rethrow): Use __is_gxx_exception_class.  Call
	_Unwind_RaiseException when using the ARM EABI.
	* libsupc++/unwind-cxx.h (struct __cxa_exception): Add fields for ARM
	EABI semantics.
	(struct __cxa_eh_globals): Ditto.
	(__cxa_call_terminate): Add prototype.
	(__cxa_type_match, __cxa_begin_cleanup, __cxa_end_cleanup): Add
	prototypes.
	(__get_exception_header_from_obj, __get_exception_header_from_ue):
	Move earlier in file.
	(__is_gxx_exception_class, __GXX_INIT_EXCEPTION_CLASS,
	__gxx_caught_object): New functions.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* libmath/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* src/Makefie.in: Regenerate.
	* testsuite/makefile.in: Regenerate.

From-SVN: r101385
This commit is contained in:
Paul Brook 2005-06-28 19:52:27 +00:00 committed by Paul Brook
parent 3176a0c28f
commit 617a1b7144
47 changed files with 1169 additions and 378 deletions

View file

@ -1,3 +1,51 @@
2005-06-28 Paul Brook <paul@codesourcery.com>
* Makefile.in: Set and use UNWIND_H. Install as unwind.h.
* c-decl.c (finish_decl): Call default_init_unwind_resume_libfunc.
* except.c (add_ehspec_entry): Generate arm eabi filter lists.
(assign_filter_values): Ditto.
(output_ttype): New function.
(output_function_exception_table): Use output_ttype. Generate arm
eabi filter lists.
(default_init_unwind_resume_libfunc): New function.
* except.h (default_init_unwind_resume_libfunc): Add prototype.
* optabs.c (init_optabs): Don't set unwind_resume_libfunc.
* opts.c (decode_options): Use targetm.unwind_tables_default.
* target-def.h (TARGET_ASM_TTYPE): Provide and use definition.
(TARGET_ARM_EABI_UNWINDER, TARGET_UNWIND_TABLES_DEFAULT): Ditto.
* target.h (struct gcc_target): Add asm.ttype, unwind_tables_default
and arm_eabi_unwinder.
* unwind-c.c: Support Arm EABI unwinder.
* unwind.h: Rename ...
* unwind-generic.h: ... To this.
* doc/tm.texi (TARGET_ASM_TTYPE, TARGET_ARM_EABI_UNWINDER): Document.
(TARGET_UNWID_TABLES_DEFAULT): Document.
* config/arm/arm-protos.h (arm_output_fn_unwind): Add prototype.
* config/arm/arm.c (arm_unwind_emit, arm_output_ttype): New functions.
(TARGET_UNWIND_EMIT, TARGET_ASM_TTYPE, TARGET_ARM_EABI_UNWINDER):
Define.
(thumb_pushpop, thumb_output_function_prologue): Output unwinding
directives.
(arm_unwind_emit_stm, arm_unwind_emit_set): New functions.
* config/arm/arm.h (MUST_USE_SJLJ_EXCEPTIONS): Only define when
!TARGET_UNWIND_INFO.
(ARM_OUTPUT_FN_UNWIND, ARM_EABI_UNWIND_TABLES): Define.
* config/arm/bpabi.h (TARGET_UNWIND_INFO): Define.
* config/arm/elf.h (ASM_DECLARE_FUNCTION_NAME,
ASM_DECLARE_FUNCTION_SIZE): Use ARM_OUTPUT_FN_UNWIND.
* config/arm/lib1funcs.asm: Include libunwind.S.
* config/arm/libgcc-bpabi.ver: Add unwinding routines.
* config/arm/libunwind.S: New file.
* config/arm/pr-support.c: New file.
* config/arm/t-bpabi (LIB1ASMFUNCS): Add _unwind.
(UNWIND_H, LIB2ADDEH, LIB2ADDEHDEP): Set.
* config/arm/t-symbian (UNWIND_H, LIB2ADDEH, LIB2ADDEHDEP): Set.
* config/arm/unwind-arm.c: New file.
* config/arm/unwind-arm.h: New file.
* config/i386/t-netware (USER_H): Remove unwind.h.
* config/ia64/ia64.h (TARGET_UNWIND_TABLES_DEFAULT): Define.
2005-06-28 DJ Delorie <dj@redhat.com>
* c-decl.c (pop_scope): Move warning control into warning call.

View file

@ -313,9 +313,10 @@ USER_H = $(srcdir)/ginclude/float.h \
$(srcdir)/ginclude/stdbool.h \
$(srcdir)/ginclude/stddef.h \
$(srcdir)/ginclude/varargs.h \
$(srcdir)/unwind.h \
$(EXTRA_HEADERS)
UNWIND_H = $(srcdir)/unwind-generic.h
# The GCC to use for compiling libgcc.a and crt*.o.
# Usually the one we just built.
# Don't use this as a dependency--use $(GCC_PASSES) or $(GCC_PARTS).
@ -534,7 +535,7 @@ LIB2ADDEH = $(srcdir)/unwind-dw2.c $(srcdir)/unwind-dw2-fde.c \
$(srcdir)/unwind-sjlj.c $(srcdir)/gthr-gnat.c $(srcdir)/unwind-c.c
LIB2ADDEHSTATIC = $(LIB2ADDEH)
LIB2ADDEHSHARED = $(LIB2ADDEH)
LIB2ADDEHDEP = unwind.h unwind-pe.h unwind.inc unwind-dw2-fde.h unwind-dw2.h
LIB2ADDEHDEP = $(UNWIND_H) unwind-pe.h unwind.inc unwind-dw2-fde.h unwind-dw2.h
# Don't build libunwind by default.
LIBUNWIND =
@ -3034,7 +3035,7 @@ gcov-dump$(exeext): $(GCOV_DUMP_OBJS) $(LIBDEPS)
# be rebuilt.
# Build the include directory
stmp-int-hdrs: $(STMP_FIXINC) $(USER_H) xlimits.h
stmp-int-hdrs: $(STMP_FIXINC) $(USER_H) xlimits.h $(UNWIND_H)
# Copy in the headers provided with gcc.
# The sed command gets just the last file name component;
# this is necessary because VPATH could add a dirname.
@ -3052,6 +3053,7 @@ stmp-int-hdrs: $(STMP_FIXINC) $(USER_H) xlimits.h
done
rm -f include/limits.h
cp xlimits.h include/limits.h
cp $(UNWIND_H) include/unwind.h
chmod a+r include/limits.h
# Install the README
rm -f include/README
@ -3684,6 +3686,7 @@ install-mkheaders: stmp-int-hdrs $(STMP_FIXPROTO) install-itoolsdirs \
$(DESTDIR)$(itoolsdatadir)/include/$$realfile ; \
done
$(INSTALL_DATA) xlimits.h $(DESTDIR)$(itoolsdatadir)/include/limits.h
$(INSTALL_DATA) $(UNWIND_H) $(DESTDIR)$(itoolsdatadir)/include/unwind.h
$(INSTALL_DATA) $(srcdir)/gsyslimits.h \
$(DESTDIR)$(itoolsdatadir)/gsyslimits.h
$(INSTALL_DATA) macro_list $(DESTDIR)$(itoolsdatadir)/macro_list

View file

@ -1,3 +1,7 @@
2005-06-28 Paul Brook <paul@codesourcery.com>
* misc.c (gnat_init_gcc_eh): Call default_init_unwind_resume_libfunc.
2005-06-14 Olivier Hainque <hainque@adacore.com>
Eric Botcazou <ebotcazou@adacore.com>

View file

@ -462,6 +462,7 @@ gnat_init_gcc_eh (void)
using_eh_for_cleanups ();
eh_personality_libfunc = init_one_libfunc ("__gnat_eh_personality");
default_init_unwind_resume_libfunc ();
lang_eh_type_covers = gnat_eh_type_covers;
lang_eh_runtime_type = gnat_eh_runtime_type;

View file

@ -3537,6 +3537,7 @@ finish_decl (tree decl, tree init, tree asmspec_tree)
= init_one_libfunc (USING_SJLJ_EXCEPTIONS
? "__gcc_personality_sj0"
: "__gcc_personality_v0");
default_init_unwind_resume_libfunc ();
using_eh_for_cleanups ();
}

View file

@ -39,6 +39,8 @@ extern HOST_WIDE_INT arm_compute_initial_elimination_offset (unsigned int,
extern HOST_WIDE_INT thumb_compute_initial_elimination_offset (unsigned int,
unsigned int);
extern unsigned int arm_dbx_register_number (unsigned int);
extern void arm_output_fn_unwind (FILE *, bool);
#ifdef TREE_CODE
extern int arm_return_in_memory (tree);

View file

@ -171,6 +171,10 @@ static bool arm_default_short_enums (void);
static bool arm_align_anon_bitfield (void);
static bool arm_return_in_msb (tree);
static bool arm_must_pass_in_stack (enum machine_mode, tree);
#ifdef TARGET_UNWIND_INFO
static void arm_unwind_emit (FILE *, rtx);
static bool arm_output_ttype (rtx);
#endif
static tree arm_cxx_guard_type (void);
static bool arm_cxx_guard_mask_bit (void);
@ -337,6 +341,18 @@ static unsigned HOST_WIDE_INT arm_shift_truncation_mask (enum machine_mode);
#undef TARGET_MUST_PASS_IN_STACK
#define TARGET_MUST_PASS_IN_STACK arm_must_pass_in_stack
#ifdef TARGET_UNWIND_INFO
#undef TARGET_UNWIND_EMIT
#define TARGET_UNWIND_EMIT arm_unwind_emit
/* EABI unwinding tables use a different format for the typeinfo tables. */
#undef TARGET_ASM_TTYPE
#define TARGET_ASM_TTYPE arm_output_ttype
#undef TARGET_ARM_EABI_UNWINDER
#define TARGET_ARM_EABI_UNWINDER true
#endif /* TARGET_UNWIND_INFO */
struct gcc_target targetm = TARGET_INITIALIZER;
/* Obstack for minipool constant handling. */
@ -12417,6 +12433,21 @@ thumb_pushpop (FILE *f, unsigned long mask, int push, int *cfa_offset,
return;
}
if (ARM_EABI_UNWIND_TABLES && push)
{
fprintf (f, "\t.save\t{");
for (regno = 0; regno < 15; regno++)
{
if (real_regs & (1 << regno))
{
if (real_regs & ((1 << regno) -1))
fprintf (f, ", ");
asm_fprintf (f, "%r", regno);
}
}
fprintf (f, "}\n");
}
fprintf (f, "\t%s\t{", push ? "push" : "pop");
/* Look at the low registers first. */
@ -13370,6 +13401,11 @@ thumb_output_function_prologue (FILE *f, HOST_WIDE_INT size ATTRIBUTE_UNUSED)
if (current_function_pretend_args_size)
{
/* Output unwind directive for the stack adjustment. */
if (ARM_EABI_UNWIND_TABLES)
fprintf (f, "\t.pad #%d\n",
current_function_pretend_args_size);
if (cfun->machine->uses_anonymous_args)
{
int num_pushes;
@ -13435,6 +13471,9 @@ thumb_output_function_prologue (FILE *f, HOST_WIDE_INT size ATTRIBUTE_UNUSED)
work_register = thumb_find_work_register (live_regs_mask);
if (ARM_EABI_UNWIND_TABLES)
asm_fprintf (f, "\t.pad #16\n");
asm_fprintf
(f, "\tsub\t%r, %r, #16\t%@ Create stack backtrace structure\n",
SP_REGNUM, SP_REGNUM);
@ -14662,3 +14701,261 @@ arm_dbx_register_number (unsigned int regno)
gcc_unreachable ();
}
#ifdef TARGET_UNWIND_INFO
/* Emit unwind directives for a store-multiple instruction. This should
only ever be generated by the function prologue code, so we expect it
to have a particular form. */
static void
arm_unwind_emit_stm (FILE * asm_out_file, rtx p)
{
int i;
HOST_WIDE_INT offset;
HOST_WIDE_INT nregs;
int reg_size;
unsigned reg;
unsigned lastreg;
rtx e;
/* First insn will adjust the stack pointer. */
e = XVECEXP (p, 0, 0);
if (GET_CODE (e) != SET
|| GET_CODE (XEXP (e, 0)) != REG
|| REGNO (XEXP (e, 0)) != SP_REGNUM
|| GET_CODE (XEXP (e, 1)) != PLUS)
abort ();
offset = -INTVAL (XEXP (XEXP (e, 1), 1));
nregs = XVECLEN (p, 0) - 1;
reg = REGNO (XEXP (XVECEXP (p, 0, 1), 1));
if (reg < 16)
{
/* The function prologue may also push pc, but not annotate it as it is
never restored. We turn this into an stack pointer adjustment. */
if (nregs * 4 == offset - 4)
{
fprintf (asm_out_file, "\t.pad #4\n");
offset -= 4;
}
reg_size = 4;
}
else if (IS_VFP_REGNUM (reg))
{
/* FPA register saves use an additional word. */
offset -= 4;
reg_size = 8;
}
else if (reg >= FIRST_FPA_REGNUM && reg <= LAST_FPA_REGNUM)
{
/* FPA registers are done differently. */
asm_fprintf (asm_out_file, "\t.save %r, %d\n", reg, nregs);
return;
}
else
/* Unknown register type. */
abort ();
/* If the stack increment doesn't match the size of the saved registers,
something has gone horribly wrong. */
if (offset != nregs * reg_size)
abort ();
fprintf (asm_out_file, "\t.save {");
offset = 0;
lastreg = 0;
/* The remaining insns will describe the stores. */
for (i = 1; i <= nregs; i++)
{
/* Expect (set (mem <addr>) (reg)).
Where <addr> is (reg:SP) or (plus (reg:SP) (const_int)). */
e = XVECEXP (p, 0, i);
if (GET_CODE (e) != SET
|| GET_CODE (XEXP (e, 0)) != MEM
|| GET_CODE (XEXP (e, 1)) != REG)
abort ();
reg = REGNO (XEXP (e, 1));
if (reg < lastreg)
abort ();
if (i != 1)
fprintf (asm_out_file, ", ");
/* We can't use %r for vfp because we need to use the
double precision register names. */
if (IS_VFP_REGNUM (reg))
asm_fprintf (asm_out_file, "d%d", (reg - FIRST_VFP_REGNUM) / 2);
else
asm_fprintf (asm_out_file, "%r", reg);
#ifdef ENABLE_CHECKING
/* Check that the addresses are consecutive. */
e = XEXP (XEXP (e, 0), 0);
if (GET_CODE (e) == PLUS)
{
offset += reg_size;
if (GET_CODE (XEXP (e, 0)) != REG
|| REGNO (XEXP (e, 0)) != SP_REGNUM
|| GET_CODE (XEXP (e, 1)) != CONST_INT
|| offset != INTVAL (XEXP (e, 1)))
abort ();
}
else if (i != 1
|| GET_CODE (e) != REG
|| REGNO (e) != SP_REGNUM)
abort ();
#endif
}
fprintf (asm_out_file, "}\n");
}
/* Emit unwind directives for a SET. */
static void
arm_unwind_emit_set (FILE * asm_out_file, rtx p)
{
rtx e0;
rtx e1;
e0 = XEXP (p, 0);
e1 = XEXP (p, 1);
switch (GET_CODE (e0))
{
case MEM:
/* Pushing a single register. */
if (GET_CODE (XEXP (e0, 0)) != PRE_DEC
|| GET_CODE (XEXP (XEXP (e0, 0), 0)) != REG
|| REGNO (XEXP (XEXP (e0, 0), 0)) != SP_REGNUM)
abort ();
asm_fprintf (asm_out_file, "\t.save ");
if (IS_VFP_REGNUM (REGNO (e1)))
asm_fprintf(asm_out_file, "{d%d}\n",
(REGNO (e1) - FIRST_VFP_REGNUM) / 2);
else
asm_fprintf(asm_out_file, "{%r}\n", REGNO (e1));
break;
case REG:
if (REGNO (e0) == SP_REGNUM)
{
/* A stack increment. */
if (GET_CODE (e1) != PLUS
|| GET_CODE (XEXP (e1, 0)) != REG
|| REGNO (XEXP (e1, 0)) != SP_REGNUM
|| GET_CODE (XEXP (e1, 1)) != CONST_INT)
abort ();
asm_fprintf (asm_out_file, "\t.pad #%d\n",
-INTVAL (XEXP (e1, 1)));
}
else if (REGNO (e0) == HARD_FRAME_POINTER_REGNUM)
{
HOST_WIDE_INT offset;
unsigned reg;
if (GET_CODE (e1) == PLUS)
{
if (GET_CODE (XEXP (e1, 0)) != REG
|| GET_CODE (XEXP (e1, 1)) != CONST_INT)
abort ();
reg = REGNO (XEXP (e1, 0));
offset = INTVAL (XEXP (e1, 1));
asm_fprintf (asm_out_file, "\t.setfp %r, %r, #%d\n",
HARD_FRAME_POINTER_REGNUM, reg,
INTVAL (XEXP (e1, 1)));
}
else if (GET_CODE (e1) == REG)
{
reg = REGNO (e1);
asm_fprintf (asm_out_file, "\t.setfp %r, %r\n",
HARD_FRAME_POINTER_REGNUM, reg);
}
else
abort ();
}
else if (GET_CODE (e1) == REG && REGNO (e1) == SP_REGNUM)
{
/* Move from sp to reg. */
asm_fprintf (asm_out_file, "\t.movsp %r\n", REGNO (e0));
}
else
abort ();
break;
default:
abort ();
}
}
/* Emit unwind directives for the given insn. */
static void
arm_unwind_emit (FILE * asm_out_file, rtx insn)
{
rtx pat;
if (!ARM_EABI_UNWIND_TABLES)
return;
if (GET_CODE (insn) == NOTE || !RTX_FRAME_RELATED_P (insn))
return;
pat = find_reg_note (insn, REG_FRAME_RELATED_EXPR, NULL_RTX);
if (pat)
pat = XEXP (pat, 0);
else
pat = PATTERN (insn);
switch (GET_CODE (pat))
{
case SET:
arm_unwind_emit_set (asm_out_file, pat);
break;
case SEQUENCE:
/* Store multiple. */
arm_unwind_emit_stm (asm_out_file, pat);
break;
default:
abort();
}
}
/* Output a reference from a function exception table to the type_info
object X. The EABI specifies that the symbol should be relocated by
an R_ARM_TARGET2 relocation. */
static bool
arm_output_ttype (rtx x)
{
fputs ("\t.word\t", asm_out_file);
output_addr_const (asm_out_file, x);
/* Use special relocations for symbol references. */
if (GET_CODE (x) != CONST_INT)
fputs ("(TARGET2)", asm_out_file);
fputc ('\n', asm_out_file);
return TRUE;
}
#endif /* TARGET_UNWIND_INFO */
/* Output unwind directives for the start/end of a function. */
void
arm_output_fn_unwind (FILE * f, bool prologue)
{
if (!ARM_EABI_UNWIND_TABLES)
return;
if (prologue)
fputs ("\t.fnstart\n", f);
else
fputs ("\t.fnend\n", f);
}

View file

@ -770,8 +770,11 @@ extern int arm_structure_size_boundary;
#define FIRST_HI_REGNUM 8
#define LAST_HI_REGNUM 11
#ifndef TARGET_UNWIND_INFO
/* We use sjlj exceptions for backwards compatibility. */
#define MUST_USE_SJLJ_EXCEPTIONS 1
#endif
/* We can generate DWARF2 Unwind info, even though we don't use it. */
#define DWARF2_UNWIND_INFO 1
@ -1977,6 +1980,15 @@ typedef struct
if (!TARGET_LONG_CALLS || ! DECL_SECTION_NAME (DECL)) \
arm_encode_call_attribute (DECL, SHORT_CALL_FLAG_CHAR)
#define ARM_OUTPUT_FN_UNWIND(F, PROLOGUE) arm_output_fn_unwind (F, PROLOGUE)
#ifdef TARGET_UNWIND_INFO
#define ARM_EABI_UNWIND_TABLES \
((!USING_SJLJ_EXCEPTIONS && flag_exceptions) || flag_unwind_tables)
#else
#define ARM_EABI_UNWIND_TABLES 0
#endif
/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
and check its validity for a certain class.
We have two alternate definitions for each of them.

View file

@ -26,6 +26,9 @@
/* Assume that AAPCS ABIs should adhere to the full BPABI. */
#define TARGET_BPABI (TARGET_AAPCS_BASED)
/* BPABI targets use EABI frame unwinding tables. */
#define TARGET_UNWIND_INFO 1
/* Section 4.1 of the AAPCS requires the use of VFP format. */
#define FPUTYPE_DEFAULT FPUTYPE_VFP

View file

@ -77,6 +77,7 @@
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
ASM_OUTPUT_LABEL(FILE, NAME); \
ARM_OUTPUT_FN_UNWIND (FILE, TRUE); \
} \
while (0)
@ -85,6 +86,7 @@
#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
do \
{ \
ARM_OUTPUT_FN_UNWIND (FILE, FALSE); \
ARM_DECLARE_FUNCTION_SIZE (FILE, FNAME, DECL); \
if (!flag_inhibit_size_directive) \
ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \

View file

@ -1309,4 +1309,5 @@ LSYM(Lchange_\register):
#include "ieee754-df.S"
#include "ieee754-sf.S"
#include "bpabi.S"
#include "libunwind.S"
#endif /* __symbian__ */

View file

@ -60,4 +60,18 @@ GCC_3.5 {
__aeabi_ulcmp
__aeabi_ul2d
__aeabi_ul2f
# Exception-Handling
# \S 7.5
_Unwind_Complete
_Unwind_VRS_Get
_Unwind_VRS_Set
_Unwind_VRS_Pop
# \S 9.2
__aeabi_unwind_cpp_pr0
__aeabi_unwind_cpp_pr1
__aeabi_unwind_cpp_pr2
# The libstdc++ exception-handling personality routine uses this
# GNU-specific entry point.
__gnu_unwind_frame
}

View file

@ -1,9 +1,15 @@
# Add the bpabi.S functions.
LIB1ASMFUNCS += _aeabi_lcmp _aeabi_ulcmp _aeabi_ldivmod _aeabi_uldivmod
LIB1ASMFUNCS += _aeabi_lcmp _aeabi_ulcmp _aeabi_ldivmod _aeabi_uldivmod \
_unwind
# Add the BPABI C functions.
LIB2FUNCS_EXTRA = $(srcdir)/config/arm/bpabi.c
UNWIND_H = $(srcdir)/config/arm/unwind-arm.h
LIB2ADDEH = $(srcdir)/config/arm/unwind-arm.c \
$(srcdir)/config/arm/pr-support.c $(srcdir)/unwind-c.c
LIB2ADDEHDEP = $(UNWIND_H)
# Add the BPABI names.
SHLIB_MAPFILES += $(srcdir)/config/arm/libgcc-bpabi.ver

View file

@ -12,6 +12,11 @@ LIB1ASMFUNCS += \
_truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \
_fixsfsi _fixunssfsi
# Include the gcc personality routine
UNWIND_H = $(srcdir)/config/arm/unwind-arm.h
LIB2ADDEH = $(srcdir)/unwind-c.c
LIB2ADDEHDEP = $(UNWIND_H)
# Create a multilib for processors with VFP floating-point, and a
# multilib for those without -- using the soft-float ABI in both
# cases. Symbian OS object should be compiled with interworking

View file

@ -6,5 +6,4 @@ netware.o: $(srcdir)/config/i386/netware.c $(RTL_H) $(TREE_H) $(CONFIG_H) $(TM_P
# We don't need some of GCC's own include files.
USER_H = $(srcdir)/ginclude/stdarg.h \
$(srcdir)/ginclude/varargs.h \
$(srcdir)/unwind.h \
$(EXTRA_HEADERS) $(LANG_EXTRA_HEADERS)

View file

@ -1985,6 +1985,8 @@ extern int ia64_final_schedule;
#define TARGET_UNWIND_INFO 1
#define TARGET_UNWIND_TABLES_DEFAULT true
#define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N) + 15 : INVALID_REGNUM)
/* This function contains machine specific function data. */

View file

@ -1,3 +1,10 @@
2005-06-28 Paul Brook <paul@codesourcery.com>
* Make-lang.in (cp/except.o): Depend on $(TARGET_H)
* except.c: Include target.h.
(init_exception_processing): Initialize unwind_resume_libfunc.
* doc/tm.texi: Document TARGET_ASM_TTYPE
2005-06-26 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* call.c (build_over_call): Pass in named argument list to

View file

@ -272,7 +272,7 @@ cp/ptree.o: cp/ptree.c $(CXX_TREE_H) $(TM_H)
cp/rtti.o: cp/rtti.c $(CXX_TREE_H) $(TM_H) flags.h toplev.h convert.h \
gt-cp-rtti.h
cp/except.o: cp/except.c $(CXX_TREE_H) $(TM_H) flags.h $(RTL_H) except.h \
toplev.h cp/cfns.h $(EXPR_H) libfuncs.h tree-inline.h
toplev.h cp/cfns.h $(EXPR_H) libfuncs.h tree-inline.h $(TARGET_H)
cp/expr.o: cp/expr.c $(CXX_TREE_H) $(TM_H) $(RTL_H) flags.h $(EXPR_H) \
toplev.h except.h $(TM_P_H)
cp/pt.o: cp/pt.c $(CXX_TREE_H) $(TM_H) cp/decl.h cp/cp-objcp-common.h \

View file

@ -38,6 +38,7 @@ Boston, MA 02110-1301, USA. */
#include "toplev.h"
#include "tree-inline.h"
#include "tree-iterator.h"
#include "target.h"
static void push_eh_cleanup (tree);
static tree prepare_eh_type (tree);
@ -79,6 +80,10 @@ init_exception_processing (void)
eh_personality_libfunc = init_one_libfunc (USING_SJLJ_EXCEPTIONS
? "__gxx_personality_sj0"
: "__gxx_personality_v0");
if (targetm.arm_eabi_unwinder)
unwind_resume_libfunc = init_one_libfunc ("__cxa_end_cleanup");
else
default_init_unwind_resume_libfunc ();
lang_eh_runtime_type = build_eh_type_type;
lang_protect_cleanup_actions = &cp_protect_cleanup_actions;

View file

@ -7648,6 +7648,11 @@ Define this macro if your target has ABI specified unwind tables. Usually
these will be output by @code{TARGET_UNWIND_EMIT}.
@end defmac
@deftypevar {Target Hook} bool TARGET_UNWID_TABLES_DEFAULT
This variable should be set to @code{true} if the target ABI requires unwinding
tables even when exceptions are not used.
@end deftypevar
@defmac MUST_USE_SJLJ_EXCEPTIONS
This macro need only be defined if @code{DWARF2_UNWIND_INFO} is
runtime-variable. In that case, @file{except.h} cannot correctly
@ -7698,6 +7703,20 @@ register in Dwarf. Otherwise, this hook should return @code{NULL_RTX}.
If not defined, the default is to return @code{NULL_RTX}.
@end deftypefn
@deftypefn {Target Hook} bool TARGET_ASM_TTYPE (rtx @var{sym})
This hook is used to output a reference from a frame unwinding table to
the type_info object identified by @var{sym}. It should return @code{true}
if the reference was output. Returning @code{false} will cause the
reference to be output using the normal Dwarf2 routines.
@end deftypefn
@deftypefn {Target Hook} bool TARGET_ARM_EABI_UNWINDER
This hook should be set to @code{true} on targets that use an ARM EABI
based unwinding library, and @code{false} on other targets. This effects
the format of unwinding tables, and how the unwinder in entered after
running a cleanup. The default is @code{false}.
@end deftypefn
@node Alignment Output
@subsection Assembler Commands for Alignment

View file

@ -1134,12 +1134,23 @@ add_ehspec_entry (htab_t ehspec_hash, htab_t ttypes_hash, tree list)
n->filter = -(VARRAY_ACTIVE_SIZE (cfun->eh->ehspec_data) + 1);
*slot = n;
/* Look up each type in the list and encode its filter
value as a uleb128. Terminate the list with 0. */
/* Generate a 0 terminated list of filter values. */
for (; list ; list = TREE_CHAIN (list))
push_uleb128 (&cfun->eh->ehspec_data,
add_ttypes_entry (ttypes_hash, TREE_VALUE (list)));
VARRAY_PUSH_UCHAR (cfun->eh->ehspec_data, 0);
{
if (targetm.arm_eabi_unwinder)
VARRAY_PUSH_TREE (cfun->eh->ehspec_data, TREE_VALUE (list));
else
{
/* Look up each type in the list and encode its filter
value as a uleb128. */
push_uleb128 (&cfun->eh->ehspec_data,
add_ttypes_entry (ttypes_hash, TREE_VALUE (list)));
}
}
if (targetm.arm_eabi_unwinder)
VARRAY_PUSH_TREE (cfun->eh->ehspec_data, NULL_TREE);
else
VARRAY_PUSH_UCHAR (cfun->eh->ehspec_data, 0);
}
return n->filter;
@ -1157,7 +1168,10 @@ assign_filter_values (void)
htab_t ttypes, ehspec;
cfun->eh->ttype_data = VEC_alloc (tree, gc, 16);
VARRAY_UCHAR_INIT (cfun->eh->ehspec_data, 64, "ehspec_data");
if (targetm.arm_eabi_unwinder)
VARRAY_TREE_INIT (cfun->eh->ehspec_data, 64, "ehspec_data");
else
VARRAY_UCHAR_INIT (cfun->eh->ehspec_data, 64, "ehspec_data");
ttypes = htab_create (31, ttypes_filter_hash, ttypes_filter_eq, free);
ehspec = htab_create (31, ehspec_filter_hash, ehspec_filter_eq, free);
@ -3377,6 +3391,54 @@ default_exception_section (void)
readonly_data_section ();
}
/* Output a reference from an exception table to the type_info object TYPE.
TT_FORMAT and TT_FORMAT_SIZE descibe the DWARF encoding method used for
the value. */
static void
output_ttype (tree type, int tt_format, int tt_format_size)
{
rtx value;
if (type == NULL_TREE)
value = const0_rtx;
else
{
struct cgraph_varpool_node *node;
type = lookup_type_for_runtime (type);
value = expand_expr (type, NULL_RTX, VOIDmode, EXPAND_INITIALIZER);
/* Let cgraph know that the rtti decl is used. Not all of the
paths below go through assemble_integer, which would take
care of this for us. */
STRIP_NOPS (type);
if (TREE_CODE (type) == ADDR_EXPR)
{
type = TREE_OPERAND (type, 0);
if (TREE_CODE (type) == VAR_DECL)
{
node = cgraph_varpool_node (type);
if (node)
cgraph_varpool_mark_needed_node (node);
}
}
else if (TREE_CODE (type) != INTEGER_CST)
abort ();
}
/* Allow the target to override the type table entry format. */
if (targetm.asm_out.ttype (value))
return;
if (tt_format == DW_EH_PE_absptr || tt_format == DW_EH_PE_aligned)
assemble_integer (value, tt_format_size,
tt_format_size * BITS_PER_UNIT, 1);
else
dw2_asm_output_encoded_addr_rtx (tt_format, value, NULL);
}
void
output_function_exception_table (void)
{
@ -3536,40 +3598,7 @@ output_function_exception_table (void)
while (i-- > 0)
{
tree type = VEC_index (tree, cfun->eh->ttype_data, i);
rtx value;
if (type == NULL_TREE)
value = const0_rtx;
else
{
struct cgraph_varpool_node *node;
type = lookup_type_for_runtime (type);
value = expand_expr (type, NULL_RTX, VOIDmode, EXPAND_INITIALIZER);
/* Let cgraph know that the rtti decl is used. Not all of the
paths below go through assemble_integer, which would take
care of this for us. */
STRIP_NOPS (type);
if (TREE_CODE (type) == ADDR_EXPR)
{
type = TREE_OPERAND (type, 0);
if (TREE_CODE (type) == VAR_DECL)
{
node = cgraph_varpool_node (type);
if (node)
cgraph_varpool_mark_needed_node (node);
}
}
else
gcc_assert (TREE_CODE (type) == INTEGER_CST);
}
if (tt_format == DW_EH_PE_absptr || tt_format == DW_EH_PE_aligned)
assemble_integer (value, tt_format_size,
tt_format_size * BITS_PER_UNIT, 1);
else
dw2_asm_output_encoded_addr_rtx (tt_format, value, NULL);
output_ttype (type, tt_format, tt_format_size);
}
#ifdef HAVE_AS_LEB128
@ -3580,8 +3609,16 @@ output_function_exception_table (void)
/* ??? Decode and interpret the data for flag_debug_asm. */
n = VARRAY_ACTIVE_SIZE (cfun->eh->ehspec_data);
for (i = 0; i < n; ++i)
dw2_asm_output_data (1, VARRAY_UCHAR (cfun->eh->ehspec_data, i),
(i ? NULL : "Exception specification table"));
{
if (targetm.arm_eabi_unwinder)
{
tree type = VARRAY_TREE (cfun->eh->ehspec_data, i);
output_ttype (type, tt_format, tt_format_size);
}
else
dw2_asm_output_data (1, VARRAY_UCHAR (cfun->eh->ehspec_data, i),
(i ? NULL : "Exception specification table"));
}
current_function_section (current_function_decl);
}
@ -3730,4 +3767,17 @@ verify_eh_tree (struct function *fun)
}
}
}
/* Initialize unwind_resume_libfunc. */
void
default_init_unwind_resume_libfunc (void)
{
/* The default c++ routines aren't actually c++ specific, so use those. */
unwind_resume_libfunc =
init_one_libfunc ( USING_SJLJ_EXCEPTIONS ? "_Unwind_SjLj_Resume"
: "_Unwind_Resume");
}
#include "gt-except.h"

View file

@ -85,6 +85,7 @@ typedef tree (*duplicate_eh_regions_map) (tree, void *);
extern int duplicate_eh_regions (struct function *, duplicate_eh_regions_map, void *, int);
extern void sjlj_emit_function_exit_after (rtx);
extern void default_init_unwind_resume_libfunc (void);
extern struct eh_region *gen_eh_region_cleanup (struct eh_region *,
struct eh_region *);

View file

@ -1,3 +1,8 @@
2005-06-28 Paul Brook <paul@codesourcery.com>
* decl.c (java_init_decl_processing): Call
default_init_unwind_resume_libfunc.
2005-06-27 Tom Tromey <tromey@redhat.com>
PR java/21540, PR java/13788:

View file

@ -1197,6 +1197,7 @@ java_init_decl_processing (void)
eh_personality_libfunc = init_one_libfunc (USING_SJLJ_EXCEPTIONS
? "__gcj_personality_sj0"
: "__gcj_personality_v0");
default_init_unwind_resume_libfunc ();
lang_eh_runtime_type = do_nothing;

View file

@ -1,3 +1,8 @@
2005-06-28 Paul Brook <paul@codesourcery.com>
* objc-act.c (objc_init_exceptions): Call
default_init_unwind_resume_libfunc.
2005-06-27 Ziemowit Laski <zlaski@apple.com>
* objc-act.c (objc_build_struct): Save the TYPE_OBJC_INFO

View file

@ -3407,6 +3407,7 @@ objc_init_exceptions (void)
= init_one_libfunc (USING_SJLJ_EXCEPTIONS
? "__gnu_objc_personality_sj0"
: "__gnu_objc_personality_v0");
default_init_unwind_resume_libfunc ();
using_eh_for_cleanups ();
lang_eh_runtime_type = objc_eh_runtime_type;
}

View file

@ -5288,9 +5288,6 @@ init_optabs (void)
memset_libfunc = init_one_libfunc ("memset");
setbits_libfunc = init_one_libfunc ("__setbits");
unwind_resume_libfunc = init_one_libfunc (USING_SJLJ_EXCEPTIONS
? "_Unwind_SjLj_Resume"
: "_Unwind_Resume");
#ifndef DONT_USE_BUILTIN_SETJMP
setjmp_libfunc = init_one_libfunc ("__builtin_setjmp");
longjmp_libfunc = init_one_libfunc ("__builtin_longjmp");

View file

@ -627,11 +627,8 @@ decode_options (unsigned int argc, const char **argv)
modify it. */
target_flags = targetm.default_target_flags;
/* Unwind tables are always present when a target has ABI-specified unwind
tables, so the default should be ON. */
#ifdef TARGET_UNWIND_INFO
flag_unwind_tables = TARGET_UNWIND_INFO;
#endif
/* Some tagets have ABI-specified unwind tables. */
flag_unwind_tables = targetm.unwind_tables_default;
#ifdef OPTIMIZATION_OPTIONS
/* Allow default optimizations to be specified on a per-machine basis. */

View file

@ -70,6 +70,10 @@ Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#define TARGET_ASM_INTERNAL_LABEL default_internal_label
#endif
#ifndef TARGET_ARM_TTYPE
#define TARGET_ASM_TTYPE hook_bool_rtx_false
#endif
#ifndef TARGET_ASM_ASSEMBLE_VISIBILITY
#define TARGET_ASM_ASSEMBLE_VISIBILITY default_assemble_visibility
#endif
@ -217,6 +221,7 @@ Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
TARGET_ASM_EMIT_UNWIND_LABEL, \
TARGET_UNWIND_EMIT, \
TARGET_ASM_INTERNAL_LABEL, \
TARGET_ASM_TTYPE, \
TARGET_ASM_ASSEMBLE_VISIBILITY, \
TARGET_ASM_FUNCTION_PROLOGUE, \
TARGET_ASM_FUNCTION_END_PROLOGUE, \
@ -401,6 +406,8 @@ Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#define TARGET_STACK_PROTECT_GUARD default_stack_protect_guard
#define TARGET_STACK_PROTECT_FAIL default_external_stack_protect_fail
#define TARGET_ARM_EABI_UNWINDER false
#define TARGET_PROMOTE_FUNCTION_ARGS hook_bool_tree_false
#define TARGET_PROMOTE_FUNCTION_RETURN hook_bool_tree_false
#define TARGET_PROMOTE_PROTOTYPES hook_bool_tree_false
@ -444,6 +451,9 @@ Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN \
}
#ifndef TARGET_UNWIND_TABLES_DEFAULT
#define TARGET_UNWIND_TABLES_DEFAULT false
#endif
#ifndef TARGET_HANDLE_PRAGMA_REDEFINE_EXTNAME
#define TARGET_HANDLE_PRAGMA_REDEFINE_EXTNAME 0
@ -506,7 +516,7 @@ Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
TARGET_CXX_KEY_METHOD_MAY_BE_INLINE, \
TARGET_CXX_DETERMINE_CLASS_DATA_VISIBILITY, \
TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT, \
TARGET_CXX_USE_AEABI_ATEXIT \
TARGET_CXX_USE_AEABI_ATEXIT, \
}
/* The whole shebang. */
@ -572,6 +582,7 @@ Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
TARGET_INVALID_WITHIN_DOLOOP, \
TARGET_CALLS, \
TARGET_CXX, \
TARGET_UNWIND_TABLES_DEFAULT, \
TARGET_HAVE_NAMED_SECTIONS, \
TARGET_HAVE_CTORS_DTORS, \
TARGET_HAVE_TLS, \
@ -582,6 +593,7 @@ Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
TARGET_HANDLE_PRAGMA_REDEFINE_EXTNAME, \
TARGET_HANDLE_PRAGMA_EXTERN_PREFIX, \
TARGET_RELAXED_ORDERING, \
TARGET_ARM_EABI_UNWINDER \
}
#include "hooks.h"

View file

@ -93,6 +93,9 @@ struct gcc_target
/* Output an internal label. */
void (* internal_label) (FILE *, const char *, unsigned long);
/* Emit a ttype table reference to a typeinfo object. */
bool (* ttype) (rtx);
/* Emit an assembler directive to set visibility for the symbol
associated with the tree decl. */
void (* visibility) (tree, int);
@ -635,6 +638,9 @@ struct gcc_target
bool (*use_aeabi_atexit) (void);
} cxx;
/* True if unwinding tables should be generated by default. */
bool unwind_tables_default;
/* Leave the boolean fields at the end. */
/* True if arbitrary sections are supported. */
@ -671,6 +677,11 @@ struct gcc_target
synchronization is explicitly requested. */
bool relaxed_ordering;
/* Returns true if we should generate exception tables for use with the
ARM EABI. The effects the encoding of function exception specifications.
*/
bool arm_eabi_unwinder;
/* Leave the boolean fields at the end. */
};

View file

@ -81,6 +81,20 @@ parse_lsda_header (struct _Unwind_Context *context, const unsigned char *p,
return p;
}
#ifdef __ARM_EABI_UNWINDER__
/* ARM EABI personality routines must also unwind the stack. */
#define CONTINUE_UNWINDING \
do \
{ \
if (__gnu_unwind_frame (ue_header, context) != _URC_OK) \
return _URC_FAILURE; \
return _URC_CONTINUE_UNWIND; \
} \
while (0)
#else
#define CONTINUE_UNWINDING return _URC_CONTINUE_UNWIND
#endif
#ifdef __USING_SJLJ_EXCEPTIONS__
#define PERSONALITY_FUNCTION __gcc_personality_sj0
#define __builtin_eh_return_data_regno(x) x
@ -88,6 +102,16 @@ parse_lsda_header (struct _Unwind_Context *context, const unsigned char *p,
#define PERSONALITY_FUNCTION __gcc_personality_v0
#endif
#ifdef __ARM_EABI_UNWINDER__
_Unwind_Reason_Code
PERSONALITY_FUNCTION (_Unwind_State, struct _Unwind_Exception *,
struct _Unwind_Context *);
_Unwind_Reason_Code
PERSONALITY_FUNCTION (_Unwind_State state,
struct _Unwind_Exception * ue_header,
struct _Unwind_Context * context)
#else
_Unwind_Reason_Code
PERSONALITY_FUNCTION (int, _Unwind_Action, _Unwind_Exception_Class,
struct _Unwind_Exception *, struct _Unwind_Context *);
@ -98,24 +122,37 @@ PERSONALITY_FUNCTION (int version,
_Unwind_Exception_Class exception_class ATTRIBUTE_UNUSED,
struct _Unwind_Exception *ue_header,
struct _Unwind_Context *context)
#endif
{
lsda_header_info info;
const unsigned char *language_specific_data, *p, *action_record;
_Unwind_Ptr landing_pad, ip;
#ifdef __ARM_EABI_UNWINDER__
if (state != _US_UNWIND_FRAME_STARTING)
CONTINUE_UNWINDING;
/* The dwarf unwinder assumes the context structure holds things like the
function and LSDA pointers. The ARM implementation caches these in
the exception header (UCB). To avoid rewriting everything we make the
virtual IP register point at the UCB. */
ip = (_Unwind_Ptr) ue_header;
_Unwind_SetGR (context, 12, ip);
#else
if (version != 1)
return _URC_FATAL_PHASE1_ERROR;
/* Currently we only support cleanups for C. */
if ((actions & _UA_CLEANUP_PHASE) == 0)
return _URC_CONTINUE_UNWIND;
CONTINUE_UNWINDING;
#endif
language_specific_data = (const unsigned char *)
_Unwind_GetLanguageSpecificData (context);
/* If no LSDA, then there are no handlers or cleanups. */
if (! language_specific_data)
return _URC_CONTINUE_UNWIND;
CONTINUE_UNWINDING;
/* Parse the LSDA header. */
p = parse_lsda_header (context, language_specific_data, &info);
@ -171,20 +208,19 @@ PERSONALITY_FUNCTION (int version,
goto found_something;
}
}
#endif
/* IP is not in table. No associated cleanups. */
/* ??? This is where C++ calls std::terminate to catch throw
from a destructor. */
return _URC_CONTINUE_UNWIND;
CONTINUE_UNWINDING;
found_something:
if (landing_pad == 0)
{
/* IP is present, but has a null landing pad.
No handler to be run. */
return _URC_CONTINUE_UNWIND;
CONTINUE_UNWINDING;
}
_Unwind_SetGR (context, __builtin_eh_return_data_regno (0),

View file

@ -1,3 +1,47 @@
2005-06-28 Paul Brook <paul@codesourcery.com>
* acinclude.m4 (GLIBCXX_ENABLE_SJLJ_EXCEPTIONS): Check for
__cxa_end_cleanup.
* libsupc++/Makefile.am (sources): Add eh_call.c and eh_arm.c.
* libsupc++/eh_arm.cc: New file.
* libsupc++/eh_call.cc: New file.
* libsupc++/eh_catch.cc (__cxa_get_exception_ptr): Use
__gxx_caught_object.
(__cxa_begin_catch): Ditto. Use __is_gxx_exception_class. Call
_Unwind_Complete when using the ARM EABI.
(__cxa_end_catch): Use __is_gxx_exception_class.
* libsupc++/eh_personality.cc: Define NO_SIZE_OF_ENCODED_VALUE when
using the ARM EABI.
(save_caught_exception, restore_caught_exception): New functions.
(_throw_typet): New typedef.
(get_ttype_entry, get_adjusted_ptr, check_exception_spec): Add ARM
EABI implementations.
(PERSONALITY_FUNCTION): Use new functions. Addd support for ARM EABI
unwinding libary.
(__cxa_unexpected): Disable when using the ARM EABI.
* libsupc++/eh_throw.cc (__cxa_throw): Use __GXX_INIT_EXCEPTION_CLASS.
(__cxa_rethrow): Use __is_gxx_exception_class. Call
_Unwind_RaiseException when using the ARM EABI.
* libsupc++/unwind-cxx.h (struct __cxa_exception): Add fields for ARM
EABI semantics.
(struct __cxa_eh_globals): Ditto.
(__cxa_call_terminate): Add prototype.
(__cxa_type_match, __cxa_begin_cleanup, __cxa_end_cleanup): Add
prototypes.
(__get_exception_header_from_obj, __get_exception_header_from_ue):
Move earlier in file.
(__is_gxx_exception_class, __GXX_INIT_EXCEPTION_CLASS,
__gxx_caught_object): New functions.
* aclocal.m4: Regenerate.
* configure: Regenerate.
* Makefile.in: Regenerate.
* include/Makefile.in: Regenerate.
* libmath/Makefile.in: Regenerate.
* libsupc++/Makefile.in: Regenerate.
* po/Makefile.in: Regenerate.
* src/Makefie.in: Regenerate.
* testsuite/makefile.in: Regenerate.
2005-06-27 Paolo Carlini <pcarlini@suse.de>
PR libstdc++/22102

View file

@ -1,8 +1,8 @@
# Makefile.in generated by automake 1.9.3 from Makefile.am.
# Makefile.in generated by automake 1.9.5 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004 Free Software Foundation, Inc.
# 2003, 2004, 2005 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
@ -408,7 +408,13 @@ uninstall-info-am:
# (which will cause the Makefiles to be regenerated when you run `make');
# (2) otherwise, pass the desired values on the `make' command line.
$(RECURSIVE_TARGETS):
@set fnord $$MAKEFLAGS; amf=$$2; \
@failcom='exit 1'; \
for f in x $$MAKEFLAGS; do \
case $$f in \
*=* | --[!k]*);; \
*k*) failcom='fail=yes';; \
esac; \
done; \
dot_seen=no; \
target=`echo $@ | sed s/-recursive//`; \
list='$(SUBDIRS)'; for subdir in $$list; do \
@ -420,7 +426,7 @@ $(RECURSIVE_TARGETS):
local_target="$$target"; \
fi; \
(cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
|| case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
|| eval $$failcom; \
done; \
if test "$$dot_seen" = "no"; then \
$(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
@ -428,7 +434,13 @@ $(RECURSIVE_TARGETS):
mostlyclean-recursive clean-recursive distclean-recursive \
maintainer-clean-recursive:
@set fnord $$MAKEFLAGS; amf=$$2; \
@failcom='exit 1'; \
for f in x $$MAKEFLAGS; do \
case $$f in \
*=* | --[!k]*);; \
*k*) failcom='fail=yes';; \
esac; \
done; \
dot_seen=no; \
case "$@" in \
distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
@ -449,7 +461,7 @@ maintainer-clean-recursive:
local_target="$$target"; \
fi; \
(cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
|| case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
|| eval $$failcom; \
done && test -z "$$fail"
tags-recursive:
list='$(SUBDIRS)'; for subdir in $$list; do \

View file

@ -1626,6 +1626,8 @@ EOF
enable_sjlj_exceptions=yes
elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
enable_sjlj_exceptions=no
elif grep __cxa_end_cleanup conftest.s >/dev/null 2>&1 ; then
enable_sjlj_exceptions=no
fi
fi
CXXFLAGS="$old_CXXFLAGS"

View file

@ -1,7 +1,7 @@
# generated automatically by aclocal 1.9.3 -*- Autoconf -*-
# generated automatically by aclocal 1.9.5 -*- Autoconf -*-
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
# Free Software Foundation, Inc.
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
# 2005 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
@ -11,23 +11,11 @@
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
# -*- Autoconf -*-
# Copyright (C) 2002, 2003 Free Software Foundation, Inc.
# Generated from amversion.in; do not edit by hand.
# This program is free software; you can redistribute it and/or modify
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# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# AM_AUTOMAKE_VERSION(VERSION)
# ----------------------------
@ -40,26 +28,15 @@ AC_DEFUN([AM_AUTOMAKE_VERSION], [am__api_version="1.9"])
# Call AM_AUTOMAKE_VERSION so it can be traced.
# This function is AC_REQUIREd by AC_INIT_AUTOMAKE.
AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
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# AM_AUX_DIR_EXPAND
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
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@ -106,26 +83,16 @@ AC_PREREQ([2.50])dnl
am_aux_dir=`cd $ac_aux_dir && pwd`
])
# AM_CONDITIONAL -*- Autoconf -*-
# AM_CONDITIONAL -*- Autoconf -*-
# Copyright (C) 1997, 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
# Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005
# Free Software Foundation, Inc.
#
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
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# serial 6
# serial 7
# AM_CONDITIONAL(NAME, SHELL-CONDITION)
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@ -149,30 +116,19 @@ AC_CONFIG_COMMANDS_PRE(
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# your package does certain things. But this isn't really a big deal.
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
# Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is free software; you can redistribute it and/or modify
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# serial 12
# This program is distributed in the hope that it will be useful,
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
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# along with this program; if not, write to the Free Software
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# serial 11
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# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
# AM_INIT_AUTOMAKE([OPTIONS])
@ -300,28 +256,17 @@ AC_DEFUN([AM_PROG_INSTALL_SH],
install_sh=${install_sh-"$am_aux_dir/install-sh"}
AC_SUBST(install_sh)])
# Add --enable-maintainer-mode option to configure.
# Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
# From Jim Meyering
# Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004
# Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005
# Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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# serial 3
# serial 4
AC_DEFUN([AM_MAINTAINER_MODE],
[AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
@ -340,27 +285,16 @@ AC_DEFUN([AM_MAINTAINER_MODE],
AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE])
# -*- Autoconf -*-
# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2005
# Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# Copyright (C) 1997, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
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# serial 3
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# AM_MISSING_PROG(NAME, PROGRAM)
# ------------------------------
@ -386,27 +320,16 @@ else
fi
])
# Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
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# it under the terms of the GNU General Public License as published by
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# any later version.
# This program is distributed in the hope that it will be useful,
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# GNU General Public License for more details.
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@ -460,25 +383,14 @@ else
fi
AC_SUBST([mkdir_p])])
# Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004
# Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005
# Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
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# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
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@ -529,26 +441,15 @@ multi_basedir="$multi_basedir"
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CC="$CC"])])dnl
# Helper functions for option handling. -*- Autoconf -*-
# Helper functions for option handling. -*- Autoconf -*-
# Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
# Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
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# serial 2
# serial 3
# _AM_MANGLE_OPTION(NAME)
# -----------------------
@ -573,28 +474,16 @@ AC_DEFUN([_AM_SET_OPTIONS],
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[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
# Check to make sure that the build environment is sane. -*- Autoconf -*-
# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
# Free Software Foundation, Inc.
#
# Check to make sure that the build environment is sane.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# Copyright (C) 1996, 1997, 2000, 2001, 2003 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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# serial 3
# serial 4
# AM_SANITY_CHECK
# ---------------
@ -637,25 +526,14 @@ Check your system clock])
fi
AC_MSG_RESULT(yes)])
# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# AM_PROG_INSTALL_STRIP
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# This program is free software; you can redistribute it and/or modify
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# any later version.
# This program 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 General Public License for more details.
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# along with this program; if not, write to the Free Software
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# _AM_PROG_TAR(FORMAT)
# --------------------

View file

@ -5079,6 +5079,8 @@ EOF
enable_sjlj_exceptions=yes
elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
enable_sjlj_exceptions=no
elif grep __cxa_end_cleanup conftest.s >/dev/null 2>&1 ; then
enable_sjlj_exceptions=no
fi
fi
CXXFLAGS="$old_CXXFLAGS"

View file

@ -1,8 +1,8 @@
# Makefile.in generated by automake 1.9.3 from Makefile.am.
# Makefile.in generated by automake 1.9.5 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004 Free Software Foundation, Inc.
# 2003, 2004, 2005 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

View file

@ -1,8 +1,8 @@
# Makefile.in generated by automake 1.9.3 from Makefile.am.
# Makefile.in generated by automake 1.9.5 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004 Free Software Foundation, Inc.
# 2003, 2004, 2005 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

View file

@ -45,7 +45,9 @@ sources = \
del_opv.cc \
del_opvnt.cc \
eh_alloc.cc \
eh_arm.cc \
eh_aux_runtime.cc \
eh_call.cc \
eh_catch.cc \
eh_exception.cc \
eh_globals.cc \

View file

@ -1,8 +1,8 @@
# Makefile.in generated by automake 1.9.3 from Makefile.am.
# Makefile.in generated by automake 1.9.5 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004 Free Software Foundation, Inc.
# 2003, 2004, 2005 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
@ -65,29 +65,31 @@ toolexeclibLTLIBRARIES_INSTALL = $(INSTALL)
LTLIBRARIES = $(noinst_LTLIBRARIES) $(toolexeclib_LTLIBRARIES)
libsupc___la_LIBADD =
am__libsupc___la_SOURCES_DIST = del_op.cc del_opnt.cc del_opv.cc \
del_opvnt.cc eh_alloc.cc eh_aux_runtime.cc eh_catch.cc \
eh_exception.cc eh_globals.cc eh_personality.cc \
eh_term_handler.cc eh_terminate.cc eh_throw.cc eh_type.cc \
eh_unex_handler.cc guard.cc new_handler.cc new_op.cc \
new_opnt.cc new_opv.cc new_opvnt.cc pure.cc tinfo.cc tinfo2.cc \
vec.cc vterminate.cc cp-demangle.c
del_opvnt.cc eh_alloc.cc eh_arm.cc eh_aux_runtime.cc \
eh_call.cc eh_catch.cc eh_exception.cc eh_globals.cc \
eh_personality.cc eh_term_handler.cc eh_terminate.cc \
eh_throw.cc eh_type.cc eh_unex_handler.cc guard.cc \
new_handler.cc new_op.cc new_opnt.cc new_opv.cc new_opvnt.cc \
pure.cc tinfo.cc tinfo2.cc vec.cc vterminate.cc cp-demangle.c
am__objects_1 = del_op.lo del_opnt.lo del_opv.lo del_opvnt.lo \
eh_alloc.lo eh_aux_runtime.lo eh_catch.lo eh_exception.lo \
eh_globals.lo eh_personality.lo eh_term_handler.lo \
eh_terminate.lo eh_throw.lo eh_type.lo eh_unex_handler.lo \
guard.lo new_handler.lo new_op.lo new_opnt.lo new_opv.lo \
new_opvnt.lo pure.lo tinfo.lo tinfo2.lo vec.lo vterminate.lo
eh_alloc.lo eh_arm.lo eh_aux_runtime.lo eh_call.lo eh_catch.lo \
eh_exception.lo eh_globals.lo eh_personality.lo \
eh_term_handler.lo eh_terminate.lo eh_throw.lo eh_type.lo \
eh_unex_handler.lo guard.lo new_handler.lo new_op.lo \
new_opnt.lo new_opv.lo new_opvnt.lo pure.lo tinfo.lo tinfo2.lo \
vec.lo vterminate.lo
@GLIBCXX_HOSTED_TRUE@am__objects_2 = cp-demangle.lo
am_libsupc___la_OBJECTS = $(am__objects_1) $(am__objects_2)
libsupc___la_OBJECTS = $(am_libsupc___la_OBJECTS)
libsupc__convenience_la_LIBADD =
am__libsupc__convenience_la_SOURCES_DIST = del_op.cc del_opnt.cc \
del_opv.cc del_opvnt.cc eh_alloc.cc eh_aux_runtime.cc \
eh_catch.cc eh_exception.cc eh_globals.cc eh_personality.cc \
eh_term_handler.cc eh_terminate.cc eh_throw.cc eh_type.cc \
eh_unex_handler.cc guard.cc new_handler.cc new_op.cc \
new_opnt.cc new_opv.cc new_opvnt.cc pure.cc tinfo.cc tinfo2.cc \
vec.cc vterminate.cc cp-demangle.c
del_opv.cc del_opvnt.cc eh_alloc.cc eh_arm.cc \
eh_aux_runtime.cc eh_call.cc eh_catch.cc eh_exception.cc \
eh_globals.cc eh_personality.cc eh_term_handler.cc \
eh_terminate.cc eh_throw.cc eh_type.cc eh_unex_handler.cc \
guard.cc new_handler.cc new_op.cc new_opnt.cc new_opv.cc \
new_opvnt.cc pure.cc tinfo.cc tinfo2.cc vec.cc vterminate.cc \
cp-demangle.c
am_libsupc__convenience_la_OBJECTS = $(am__objects_1) $(am__objects_2)
libsupc__convenience_la_OBJECTS = \
$(am_libsupc__convenience_la_OBJECTS)
@ -309,7 +311,9 @@ sources = \
del_opv.cc \
del_opvnt.cc \
eh_alloc.cc \
eh_arm.cc \
eh_aux_runtime.cc \
eh_call.cc \
eh_catch.cc \
eh_exception.cc \
eh_globals.cc \

View file

@ -38,9 +38,8 @@ __cxxabiv1::__cxa_get_exception_ptr(void *exc_obj_in) throw()
{
_Unwind_Exception *exceptionObject
= reinterpret_cast <_Unwind_Exception *>(exc_obj_in);
__cxa_exception *header = __get_exception_header_from_ue (exceptionObject);
return header->adjustedPtr;
return __gxx_caught_object(exceptionObject);
}
extern "C" void *
@ -51,12 +50,13 @@ __cxxabiv1::__cxa_begin_catch (void *exc_obj_in) throw()
__cxa_eh_globals *globals = __cxa_get_globals ();
__cxa_exception *prev = globals->caughtExceptions;
__cxa_exception *header = __get_exception_header_from_ue (exceptionObject);
void* objectp;
// Foreign exceptions can't be stacked here. If the exception stack is
// empty, then fine. Otherwise we really have no choice but to terminate.
// Note that this use of "header" is a lie. It's fine so long as we only
// examine header->unwindHeader though.
if (header->unwindHeader.exception_class != __gxx_exception_class)
if (!__is_gxx_exception_class(header->unwindHeader.exception_class))
{
if (prev != 0)
std::terminate ();
@ -85,7 +85,11 @@ __cxxabiv1::__cxa_begin_catch (void *exc_obj_in) throw()
globals->caughtExceptions = header;
}
return header->adjustedPtr;
objectp = __gxx_caught_object(exceptionObject);
#ifdef __ARM_EABI_UNWINDER__
_Unwind_Complete(exceptionObject);
#endif
return objectp;
}
@ -102,7 +106,7 @@ __cxxabiv1::__cxa_end_catch ()
// A foreign exception couldn't have been stacked (see above),
// so by definition processing must be complete.
if (header->unwindHeader.exception_class != __gxx_exception_class)
if (!__is_gxx_exception_class(header->unwindHeader.exception_class))
{
globals->caughtExceptions = 0;
_Unwind_DeleteException (&header->unwindHeader);

View file

@ -35,6 +35,10 @@
using namespace __cxxabiv1;
#ifdef __ARM_EABI_UNWINDER__
#define NO_SIZE_OF_ENCODED_VALUE
#endif
#include "unwind-pe.h"
@ -84,6 +88,117 @@ parse_lsda_header (_Unwind_Context *context, const unsigned char *p,
return p;
}
#ifdef __ARM_EABI_UNWINDER__
// Return an element from a type table.
static const std::type_info*
get_ttype_entry(lsda_header_info* info, _Unwind_Word i)
{
_Unwind_Ptr ptr;
ptr = (_Unwind_Ptr) (info->TType - (i * 4));
ptr = _Unwind_decode_target2(ptr);
return reinterpret_cast<const std::type_info *>(ptr);
}
// The ABI provides a routine for matching exception object types.
typedef _Unwind_Control_Block _throw_typet;
#define get_adjusted_ptr(catch_type, throw_type, thrown_ptr_p) \
(__cxa_type_match (throw_type, catch_type, false, thrown_ptr_p) \
!= ctm_failed)
// Return true if THROW_TYPE matches one if the filter types.
static bool
check_exception_spec(lsda_header_info* info, _throw_typet* throw_type,
void* thrown_ptr, _Unwind_Sword filter_value)
{
const _Unwind_Word* e = ((const _Unwind_Word*) info->TType)
- filter_value - 1;
while (1)
{
const std::type_info* catch_type;
_Unwind_Word tmp;
tmp = *e;
// Zero signals the end of the list. If we've not found
// a match by now, then we've failed the specification.
if (tmp == 0)
return false;
tmp = _Unwind_decode_target2((_Unwind_Word) e);
// Match a ttype entry.
catch_type = reinterpret_cast<const std::type_info*>(tmp);
// ??? There is currently no way to ask the RTTI code about the
// relationship between two types without reference to a specific
// object. There should be; then we wouldn't need to mess with
// thrown_ptr here.
if (get_adjusted_ptr(catch_type, throw_type, &thrown_ptr))
return true;
// Advance to the next entry.
e++;
}
}
// Save stage1 handler information in the exception object
static inline void
save_caught_exception(struct _Unwind_Exception* ue_header,
struct _Unwind_Context* context,
void* thrown_ptr,
int handler_switch_value,
const unsigned char* language_specific_data,
_Unwind_Ptr landing_pad,
const unsigned char* action_record
__attribute__((__unused__)))
{
ue_header->barrier_cache.sp = _Unwind_GetGR(context, 13);
ue_header->barrier_cache.bitpattern[0] = (_uw) thrown_ptr;
ue_header->barrier_cache.bitpattern[1]
= (_uw) handler_switch_value;
ue_header->barrier_cache.bitpattern[2]
= (_uw) language_specific_data;
ue_header->barrier_cache.bitpattern[3] = (_uw) landing_pad;
}
// Restore the catch handler data saved during phase1.
static inline void
restore_caught_exception(struct _Unwind_Exception* ue_header,
int& handler_switch_value,
const unsigned char*& language_specific_data,
_Unwind_Ptr& landing_pad)
{
handler_switch_value = (int) ue_header->barrier_cache.bitpattern[1];
language_specific_data =
(const unsigned char*) ue_header->barrier_cache.bitpattern[2];
landing_pad = (_Unwind_Ptr) ue_header->barrier_cache.bitpattern[3];
}
#define CONTINUE_UNWINDING \
do \
{ \
if (__gnu_unwind_frame(ue_header, context) != _URC_OK) \
return _URC_FAILURE; \
return _URC_CONTINUE_UNWIND; \
} \
while (0)
#else
typedef const std::type_info _throw_typet;
// Return an element from a type table.
static const std::type_info *
get_ttype_entry (lsda_header_info *info, _Unwind_Word i)
{
@ -127,8 +242,8 @@ get_adjusted_ptr (const std::type_info *catch_type,
// Return true if THROW_TYPE matches one if the filter types.
static bool
check_exception_spec (lsda_header_info *info, const std::type_info *throw_type,
void *thrown_ptr, _Unwind_Sword filter_value)
check_exception_spec(lsda_header_info* info, _throw_typet* throw_type,
void* thrown_ptr, _Unwind_Sword filter_value)
{
const unsigned char *e = info->TType - filter_value - 1;
@ -156,6 +271,50 @@ check_exception_spec (lsda_header_info *info, const std::type_info *throw_type,
}
}
// Save stage1 handler information in the exception object
static inline void
save_caught_exception(struct _Unwind_Exception* ue_header,
struct _Unwind_Context* context
__attribute__((__unused__)),
void* thrown_ptr,
int handler_switch_value,
const unsigned char* language_specific_data,
_Unwind_Ptr landing_pad __attribute__((__unused__)),
const unsigned char* action_record)
{
__cxa_exception* xh = __get_exception_header_from_ue(ue_header);
xh->handlerSwitchValue = handler_switch_value;
xh->actionRecord = action_record;
xh->languageSpecificData = language_specific_data;
xh->adjustedPtr = thrown_ptr;
// ??? Completely unknown what this field is supposed to be for.
// ??? Need to cache TType encoding base for call_unexpected.
xh->catchTemp = landing_pad;
}
// Restore the catch handler information saved during phase1.
static inline void
restore_caught_exception(struct _Unwind_Exception* ue_header,
int& handler_switch_value,
const unsigned char*& language_specific_data,
_Unwind_Ptr& landing_pad)
{
__cxa_exception* xh = __get_exception_header_from_ue(ue_header);
handler_switch_value = xh->handlerSwitchValue;
language_specific_data = xh->languageSpecificData;
landing_pad = (_Unwind_Ptr) xh->catchTemp;
}
#define CONTINUE_UNWINDING return _URC_CONTINUE_UNWIND
#endif // !__ARM_EABI_UNWINDER__
// Return true if the filter spec is empty, ie throw().
static bool
@ -178,14 +337,18 @@ empty_exception_spec (lsda_header_info *info, _Unwind_Sword filter_value)
#endif
extern "C" _Unwind_Reason_Code
#ifdef __ARM_EABI_UNWINDER__
PERSONALITY_FUNCTION (_Unwind_State state,
struct _Unwind_Exception* ue_header,
struct _Unwind_Context* context)
#else
PERSONALITY_FUNCTION (int version,
_Unwind_Action actions,
_Unwind_Exception_Class exception_class,
struct _Unwind_Exception *ue_header,
struct _Unwind_Context *context)
#endif
{
__cxa_exception *xh = __get_exception_header_from_ue (ue_header);
enum found_handler_type
{
found_nothing,
@ -200,19 +363,58 @@ PERSONALITY_FUNCTION (int version,
const unsigned char *p;
_Unwind_Ptr landing_pad, ip;
int handler_switch_value;
void *thrown_ptr = xh + 1;
void* thrown_ptr = ue_header + 1;
bool foreign_exception;
#ifdef __ARM_EABI_UNWINDER__
_Unwind_Action actions;
switch (state)
{
case _US_VIRTUAL_UNWIND_FRAME:
actions = _UA_SEARCH_PHASE;
break;
case _US_UNWIND_FRAME_STARTING:
actions = _UA_CLEANUP_PHASE;
if (ue_header->barrier_cache.sp == _Unwind_GetGR(context, 13))
actions |= _UA_HANDLER_FRAME;
break;
case _US_UNWIND_FRAME_RESUME:
CONTINUE_UNWINDING;
break;
default:
abort();
}
// We don't know which runtime we're working with, so can't check this.
// However the ABI routines hide this from us, and we don't actually need
// to know.
foreign_exception = false;
// The dwarf unwinder assumes the context structure holds things like the
// function and LSDA pointers. The ARM implementation caches these in
// the exception header (UCB). To avoid rewriting everything we make the
// virtual IP register point at the UCB.
ip = (_Unwind_Ptr) ue_header;
_Unwind_SetGR(context, 12, ip);
#else
__cxa_exception* xh = __get_exception_header_from_ue(ue_header);
// Interface version check.
if (version != 1)
return _URC_FATAL_PHASE1_ERROR;
foreign_exception = !__is_gxx_exception_class(exception_class);
#endif
// Shortcut for phase 2 found handler for domestic exception.
if (actions == (_UA_CLEANUP_PHASE | _UA_HANDLER_FRAME)
&& exception_class == __gxx_exception_class)
&& !foreign_exception)
{
handler_switch_value = xh->handlerSwitchValue;
language_specific_data = xh->languageSpecificData;
landing_pad = (_Unwind_Ptr) xh->catchTemp;
restore_caught_exception(ue_header, handler_switch_value,
language_specific_data, landing_pad);
found_type = (landing_pad == 0 ? found_terminate : found_handler);
goto install_context;
}
@ -222,11 +424,11 @@ PERSONALITY_FUNCTION (int version,
// If no LSDA, then there are no handlers or cleanups.
if (! language_specific_data)
return _URC_CONTINUE_UNWIND;
CONTINUE_UNWINDING;
// Parse the LSDA header.
p = parse_lsda_header (context, language_specific_data, &info);
info.ttype_base = base_of_encoded_value (info.ttype_encoding, context);
info.ttype_base = 0;
ip = _Unwind_GetIP (context) - 1;
landing_pad = 0;
action_record = 0;
@ -312,7 +514,8 @@ PERSONALITY_FUNCTION (int version,
// Otherwise we have a catch handler or exception specification.
_Unwind_Sword ar_filter, ar_disp;
const std::type_info *throw_type, *catch_type;
const std::type_info* catch_type;
_throw_typet* throw_type;
bool saw_cleanup = false;
bool saw_handler = false;
@ -320,11 +523,15 @@ PERSONALITY_FUNCTION (int version,
// exception class, there's no exception type.
// ??? What to do about GNU Java and GNU Ada exceptions.
#ifdef __ARM_EABI_UNWINDER__
throw_type = ue_header;
#else
if ((actions & _UA_FORCE_UNWIND)
|| exception_class != __gxx_exception_class)
|| foreign_exception)
throw_type = 0;
else
throw_type = xh->exceptionType;
#endif
while (1)
{
@ -387,34 +594,31 @@ PERSONALITY_FUNCTION (int version,
do_something:
if (found_type == found_nothing)
return _URC_CONTINUE_UNWIND;
CONTINUE_UNWINDING;
if (actions & _UA_SEARCH_PHASE)
{
if (found_type == found_cleanup)
return _URC_CONTINUE_UNWIND;
CONTINUE_UNWINDING;
// For domestic exceptions, we cache data from phase 1 for phase 2.
if (exception_class == __gxx_exception_class)
if (!foreign_exception)
{
xh->handlerSwitchValue = handler_switch_value;
xh->actionRecord = action_record;
xh->languageSpecificData = language_specific_data;
xh->adjustedPtr = thrown_ptr;
// ??? Completely unknown what this field is supposed to be for.
// ??? Need to cache TType encoding base for call_unexpected.
xh->catchTemp = landing_pad;
save_caught_exception(ue_header, context, thrown_ptr,
handler_switch_value, language_specific_data,
landing_pad, action_record);
}
return _URC_HANDLER_FOUND;
}
install_context:
#ifndef __ARM_EABI_UNWINDER__
// We can't use any of the cxa routines with foreign exceptions,
// because they all expect ue_header to be a struct __cxa_exception.
// So in that case, call terminate or unexpected directly.
if ((actions & _UA_FORCE_UNWIND)
|| exception_class != __gxx_exception_class)
|| foreign_exception)
{
if (found_type == found_terminate)
std::terminate ();
@ -427,32 +631,60 @@ PERSONALITY_FUNCTION (int version,
}
}
else
#endif
{
if (found_type == found_terminate)
{
__cxa_begin_catch (&xh->unwindHeader);
__terminate (xh->terminateHandler);
}
__cxa_call_terminate(ue_header);
// Cache the TType base value for __cxa_call_unexpected, as we won't
// have an _Unwind_Context then.
if (handler_switch_value < 0)
{
parse_lsda_header (context, language_specific_data, &info);
#ifdef __ARM_EABI_UNWINDER__
const _Unwind_Word* e;
_Unwind_Word n;
e = ((const _Unwind_Word*) info.TType) - handler_switch_value - 1;
// Count the number of rtti objects.
n = 0;
while (e[n] != 0)
n++;
// Count.
ue_header->barrier_cache.bitpattern[1] = n;
// Base (obsolete)
ue_header->barrier_cache.bitpattern[2] = 0;
// Stride.
ue_header->barrier_cache.bitpattern[3] = 4;
// List head.
ue_header->barrier_cache.bitpattern[4] = (_Unwind_Word) e;
#else
xh->catchTemp = base_of_encoded_value (info.ttype_encoding, context);
#endif
}
}
/* For targets with pointers smaller than the word size, we must extend the
pointer, and this extension is target dependent. */
_Unwind_SetGR (context, __builtin_eh_return_data_regno (0),
__builtin_extend_pointer (&xh->unwindHeader));
__builtin_extend_pointer (ue_header));
_Unwind_SetGR (context, __builtin_eh_return_data_regno (1),
handler_switch_value);
_Unwind_SetIP (context, landing_pad);
#ifdef __ARM_EABI_UNWINDER__
if (found_type == found_cleanup)
__cxa_begin_cleanup(ue_header);
#endif
return _URC_INSTALL_CONTEXT;
}
/* The ARM EABI implementation of __cxa_call_unexpected is in a different
file so that the personality routine san be used standalone. The generic
routine sahred datastructures with the PR so it is most convenient to
implement it here. */
#ifndef __ARM_EABI_UNWINDER__
extern "C" void
__cxa_call_unexpected (void *exc_obj_in)
{
@ -513,3 +745,4 @@ __cxa_call_unexpected (void *exc_obj_in)
__terminate (xh_terminate_handler);
}
}
#endif

View file

@ -63,7 +63,7 @@ __cxxabiv1::__cxa_throw (void *obj, std::type_info *tinfo,
header->exceptionDestructor = dest;
header->unexpectedHandler = __unexpected_handler;
header->terminateHandler = __terminate_handler;
header->unwindHeader.exception_class = __gxx_exception_class;
__GXX_INIT_EXCEPTION_CLASS(header->unwindHeader.exception_class);
header->unwindHeader.exception_cleanup = __gxx_exception_cleanup;
#ifdef _GLIBCXX_SJLJ_EXCEPTIONS
@ -89,7 +89,7 @@ __cxxabiv1::__cxa_rethrow ()
if (header)
{
// Tell __cxa_end_catch this is a rethrow.
if (header->unwindHeader.exception_class != __gxx_exception_class)
if (!__is_gxx_exception_class(header->unwindHeader.exception_class))
globals->caughtExceptions = 0;
else
header->handlerCount = -header->handlerCount;
@ -97,7 +97,7 @@ __cxxabiv1::__cxa_rethrow ()
#ifdef _GLIBCXX_SJLJ_EXCEPTIONS
_Unwind_SjLj_Resume_or_Rethrow (&header->unwindHeader);
#else
#ifdef _LIBUNWIND_STD_ABI
#if defined(_LIBUNWIND_STD_ABI) || defined (__ARM_EABI_UNWINDER__)
_Unwind_RaiseException (&header->unwindHeader);
#else
_Unwind_Resume_or_Rethrow (&header->unwindHeader);

View file

@ -67,6 +67,13 @@ struct __cxa_exception
// value is a signal that this object has been rethrown.
int handlerCount;
#ifdef __ARM_EABI_UNWINDER__
// Stack of exceptions in cleanups.
__cxa_exception* nextPropagatingException;
// The nuber of active cleanup handlers for this exception.
int propagationCount;
#else
// Cache parsed handler data from the personality routine Phase 1
// for Phase 2 and __cxa_call_unexpected.
int handlerSwitchValue;
@ -74,6 +81,7 @@ struct __cxa_exception
const unsigned char *languageSpecificData;
_Unwind_Ptr catchTemp;
void *adjustedPtr;
#endif
// The generic exception header. Must be last.
_Unwind_Exception unwindHeader;
@ -84,6 +92,9 @@ struct __cxa_eh_globals
{
__cxa_exception *caughtExceptions;
unsigned int uncaughtExceptions;
#ifdef __ARM_EABI_UNWINDER__
__cxa_exception* propagatingExceptions;
#endif
};
@ -122,6 +133,20 @@ extern "C" void __cxa_bad_typeid ();
// throws, and if bad_exception needs to be thrown. Called from the
// compiler.
extern "C" void __cxa_call_unexpected (void *) __attribute__((noreturn));
extern "C" void __cxa_call_terminate (void*) __attribute__((noreturn));
#ifdef __ARM_EABI_UNWINDER__
// Arm EABI specified routines.
typedef enum {
ctm_failed = 0,
ctm_succeeded = 1,
ctm_succeeded_with_ptr_to_base = 2
} __cxa_type_match_result;
extern "C" bool __cxa_type_match(_Unwind_Exception*, const std::type_info*,
bool, void**);
extern "C" void __cxa_begin_cleanup (_Unwind_Exception*);
extern "C" void __cxa_end_cleanup (void);
#endif
// Invokes given handler, dying appropriately if the user handler was
// so inconsiderate as to return.
@ -134,27 +159,6 @@ extern std::unexpected_handler __unexpected_handler;
// These are explicitly GNU C++ specific.
// This is the exception class we report -- "GNUCC++\0".
const _Unwind_Exception_Class __gxx_exception_class
= ((((((((_Unwind_Exception_Class) 'G'
<< 8 | (_Unwind_Exception_Class) 'N')
<< 8 | (_Unwind_Exception_Class) 'U')
<< 8 | (_Unwind_Exception_Class) 'C')
<< 8 | (_Unwind_Exception_Class) 'C')
<< 8 | (_Unwind_Exception_Class) '+')
<< 8 | (_Unwind_Exception_Class) '+')
<< 8 | (_Unwind_Exception_Class) '\0');
// GNU C++ personality routine, Version 0.
extern "C" _Unwind_Reason_Code __gxx_personality_v0
(int, _Unwind_Action, _Unwind_Exception_Class,
struct _Unwind_Exception *, struct _Unwind_Context *);
// GNU C++ sjlj personality routine, Version 0.
extern "C" _Unwind_Reason_Code __gxx_personality_sj0
(int, _Unwind_Action, _Unwind_Exception_Class,
struct _Unwind_Exception *, struct _Unwind_Context *);
// Acquire the C++ exception header from the C++ object.
static inline __cxa_exception *
__get_exception_header_from_obj (void *ptr)
@ -169,6 +173,77 @@ __get_exception_header_from_ue (_Unwind_Exception *exc)
return reinterpret_cast<__cxa_exception *>(exc + 1) - 1;
}
#ifdef __ARM_EABI_UNWINDER__
static inline bool
__is_gxx_exception_class(_Unwind_Exception_Class c)
{
// TODO: Take advantage of the fact that c will always be word aligned.
return c[0] == 'G'
&& c[1] == 'N'
&& c[2] == 'U'
&& c[3] == 'C'
&& c[4] == 'C'
&& c[5] == '+'
&& c[6] == '+'
&& c[7] == '\0';
}
static inline void
__GXX_INIT_EXCEPTION_CLASS(_Unwind_Exception_Class c)
{
c[0] = 'G';
c[1] = 'N';
c[2] = 'U';
c[3] = 'C';
c[4] = 'C';
c[5] = '+';
c[6] = '+';
c[7] = '\0';
}
static inline void*
__gxx_caught_object(_Unwind_Exception* eo)
{
return (void*)eo->barrier_cache.bitpattern[0];
}
#else // !__ARM_EABI_UNWINDER__
// This is the exception class we report -- "GNUCC++\0".
const _Unwind_Exception_Class __gxx_exception_class
= ((((((((_Unwind_Exception_Class) 'G'
<< 8 | (_Unwind_Exception_Class) 'N')
<< 8 | (_Unwind_Exception_Class) 'U')
<< 8 | (_Unwind_Exception_Class) 'C')
<< 8 | (_Unwind_Exception_Class) 'C')
<< 8 | (_Unwind_Exception_Class) '+')
<< 8 | (_Unwind_Exception_Class) '+')
<< 8 | (_Unwind_Exception_Class) '\0');
static inline bool
__is_gxx_exception_class(_Unwind_Exception_Class c)
{
return c == __gxx_exception_class;
}
#define __GXX_INIT_EXCEPTION_CLASS(c) c = __gxx_exception_class
// GNU C++ personality routine, Version 0.
extern "C" _Unwind_Reason_Code __gxx_personality_v0
(int, _Unwind_Action, _Unwind_Exception_Class,
struct _Unwind_Exception *, struct _Unwind_Context *);
// GNU C++ sjlj personality routine, Version 0.
extern "C" _Unwind_Reason_Code __gxx_personality_sj0
(int, _Unwind_Action, _Unwind_Exception_Class,
struct _Unwind_Exception *, struct _Unwind_Context *);
static inline void*
__gxx_caught_object(_Unwind_Exception* eo)
{
__cxa_exception* header = __get_exception_header_from_ue (eo);
return header->adjustedPtr;
}
#endif // !__ARM_EABI_UNWINDER__
} /* namespace __cxxabiv1 */
#pragma GCC visibility pop

View file

@ -1,8 +1,8 @@
# Makefile.in generated by automake 1.9.3 from Makefile.am.
# Makefile.in generated by automake 1.9.5 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004 Free Software Foundation, Inc.
# 2003, 2004, 2005 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

View file

@ -1,8 +1,8 @@
# Makefile.in generated by automake 1.9.3 from Makefile.am.
# Makefile.in generated by automake 1.9.5 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004 Free Software Foundation, Inc.
# 2003, 2004, 2005 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

View file

@ -1,8 +1,8 @@
# Makefile.in generated by automake 1.9.3 from Makefile.am.
# Makefile.in generated by automake 1.9.5 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004 Free Software Foundation, Inc.
# 2003, 2004, 2005 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.