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elf.h: Use __ARM_ARCH_ISA_THUMB and __ARM_ARCH_ISA_ARM to decide whether to prevent...

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2016-07-07  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * config/arm/elf.h: Use __ARM_ARCH_ISA_THUMB and __ARM_ARCH_ISA_ARM to
    decide whether to prevent some libgcc routines being included for some
    multilibs rather than __ARM_ARCH_6M__ and add comment to indicate the
    link between this condition and the one in
    libgcc/config/arm/lib1func.S.

    gcc/testsuite/
    * lib/target-supports.exp (check_effective_target_arm_cortex_m): Use
    __ARM_ARCH_ISA_ARM to test for Cortex-M devices.

    libgcc/
    * config/arm/bpabi-v6m.S: Clarify what architectures is the
    implementation suitable for.
    * config/arm/lib1funcs.S (__prefer_thumb__): Define among other cases
    for all Thumb-1 only targets.
    (NOT_ISA_TARGET_32BIT): Define for Thumb-1 only targets.
    (THUMB_LDIV0): Test for NOT_ISA_TARGET_32BIT rather than
    __ARM_ARCH_6M__.
    (EQUIV): Likewise.
    (ARM_FUNC_ALIAS): Likewise.
    (umodsi3): Add check to __ARM_ARCH_ISA_THUMB != 1 to guard the idiv
    version.
    (modsi3): Likewise.
    (clzsi2): Test for NOT_ISA_TARGET_32BIT rather than __ARM_ARCH_6M__.
    (clzdi2): Likewise.
    (ctzsi2): Likewise.
    (L_interwork_call_via_rX): Test for __ARM_ARCH_ISA_ARM rather than
    __ARM_ARCH_6M__ in guard for checking whether it is defined.
    (final includes): Test for NOT_ISA_TARGET_32BIT rather than
    __ARM_ARCH_6M__ and add comment to indicate the connection between
    this condition and the one in gcc/config/arm/elf.h.
    * config/arm/libunwind.S: Test for __ARM_ARCH_ISA_THUMB and
    __ARM_ARCH_ISA_ARM rather than __ARM_ARCH_6M__.
    * config/arm/t-softfp: Likewise.

From-SVN: r238079
This commit is contained in:
Thomas Preud'homme 2016-07-07 08:54:18 +00:00 • committed by Thomas Preud'homme
parent 3c5b29f561
commit 6f49395177
9 changed files with 69 additions and 25 deletions
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8
gcc/ChangeLog
View file

@ -1,3 +1,11 @@
2016-07-07 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/elf.h: Use __ARM_ARCH_ISA_THUMB and __ARM_ARCH_ISA_ARM to
decide whether to prevent some libgcc routines being included for some
multilibs rather than __ARM_ARCH_6M__ and add comment to indicate the
link between this condition and the one in
libgcc/config/arm/lib1func.S.
2016-07-07 Richard Biener <rguenther@suse.de>
* tree-ssa-pre.c: Include alias.h.

5
gcc/config/arm/elf.h
View file

@ -148,8 +148,9 @@
while (0)
/* Horrible hack: We want to prevent some libgcc routines being included
for some multilibs. */
#ifndef __ARM_ARCH_6M__
for some multilibs. The condition should match the one in
libgcc/config/arm/lib1funcs.S. */
#if __ARM_ARCH_ISA_ARM || __ARM_ARCH_ISA_THUMB != 1
#undef L_fixdfsi
#undef L_fixunsdfsi
#undef L_truncdfsf2

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2016-07-07 Thomas Preud'homme <thomas.preudhomme@arm.com>
* lib/target-supports.exp (check_effective_target_arm_cortex_m): Use
__ARM_ARCH_ISA_ARM to test for Cortex-M devices.
2016-07-06 Segher Boessenkool <segher@kernel.crashing.org>
PR target/70098

6
gcc/testsuite/lib/target-supports.exp
View file

@ -3476,10 +3476,8 @@ proc check_effective_target_arm_cortex_m { } {
return 0
}
return [check_no_compiler_messages arm_cortex_m assembly {
#if !defined(__ARM_ARCH_7M__) \
&& !defined (__ARM_ARCH_7EM__) \
&& !defined (__ARM_ARCH_6M__)
#error !__ARM_ARCH_7M__ && !__ARM_ARCH_7EM__ && !__ARM_ARCH_6M__
#if defined(__ARM_ARCH_ISA_ARM)
#error __ARM_ARCH_ISA_ARM is defined
#endif
int i;
} "-mthumb"]

26
libgcc/ChangeLog
View file

@ -1,3 +1,29 @@
2016-07-07 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/bpabi-v6m.S: Clarify what architectures is the
implementation suitable for.
* config/arm/lib1funcs.S (__prefer_thumb__): Define among other cases
for all Thumb-1 only targets.
(NOT_ISA_TARGET_32BIT): Define for Thumb-1 only targets.
(THUMB_LDIV0): Test for NOT_ISA_TARGET_32BIT rather than
__ARM_ARCH_6M__.
(EQUIV): Likewise.
(ARM_FUNC_ALIAS): Likewise.
(umodsi3): Add check to __ARM_ARCH_ISA_THUMB != 1 to guard the idiv
version.
(modsi3): Likewise.
(clzsi2): Test for NOT_ISA_TARGET_32BIT rather than __ARM_ARCH_6M__.
(clzdi2): Likewise.
(ctzsi2): Likewise.
(L_interwork_call_via_rX): Test for __ARM_ARCH_ISA_ARM rather than
__ARM_ARCH_6M__ in guard for checking whether it is defined.
(final includes): Test for NOT_ISA_TARGET_32BIT rather than
__ARM_ARCH_6M__ and add comment to indicate the connection between
this condition and the one in gcc/config/arm/elf.h.
* config/arm/libunwind.S: Test for __ARM_ARCH_ISA_THUMB and
__ARM_ARCH_ISA_ARM rather than __ARM_ARCH_6M__.
* config/arm/t-softfp: Likewise.
2016-07-06 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
* libgcc2.c (SYMBOL__MAIN): Remove checks for

3
libgcc/config/arm/bpabi-v6m.S
View file

@ -1,4 +1,5 @@
/* Miscellaneous BPABI functions. ARMv6M implementation
/* Miscellaneous BPABI functions. Thumb-1 implementation, suitable for ARMv4T,
ARMv6-M and ARMv8-M Baseline like ISA variants.
Copyright (C) 2006-2016 Free Software Foundation, Inc.
Contributed by CodeSourcery.

33
libgcc/config/arm/lib1funcs.S
View file

@ -124,10 +124,14 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
&& !defined(__thumb2__) \
&& (!defined(__THUMB_INTERWORK__) \
|| defined (__OPTIMIZE_SIZE__) \
|| defined(__ARM_ARCH_6M__)))
|| !__ARM_ARCH_ISA_ARM))
# define __prefer_thumb__
#endif
#if !__ARM_ARCH_ISA_ARM && __ARM_ARCH_ISA_THUMB == 1
#define NOT_ISA_TARGET_32BIT 1
#endif
/* How to return from a function call depends on the architecture variant. */
#if (__ARM_ARCH__ > 4) || defined(__ARM_ARCH_4T__)
@ -305,7 +309,7 @@ LSYM(Lend_fde):
#ifdef __ARM_EABI__
.macro THUMB_LDIV0 name signed
#if defined(__ARM_ARCH_6M__)
#ifdef NOT_ISA_TARGET_32BIT
.ifc \signed, unsigned
cmp r0, #0
beq 1f
@ -478,7 +482,7 @@ _L__\name:
#else /* !(__INTERWORKING_STUBS__ || __thumb2__) */
#ifdef __ARM_ARCH_6M__
#ifdef NOT_ISA_TARGET_32BIT
#define EQUIV .thumb_set
#else
.macro ARM_FUNC_START name sp_section=
@ -510,7 +514,7 @@ SYM (__\name):
#endif
.endm
#ifndef __ARM_ARCH_6M__
#ifndef NOT_ISA_TARGET_32BIT
.macro ARM_FUNC_ALIAS new old
.globl SYM (__\new)
EQUIV SYM (__\new), SYM (__\old)
@ -1054,7 +1058,7 @@ ARM_FUNC_START aeabi_uidivmod
/* ------------------------------------------------------------------------ */
#ifdef L_umodsi3
#ifdef __ARM_ARCH_EXT_IDIV__
#if defined(__ARM_ARCH_EXT_IDIV__) && __ARM_ARCH_ISA_THUMB != 1
ARM_FUNC_START umodsi3
@ -1240,7 +1244,7 @@ ARM_FUNC_START aeabi_idivmod
/* ------------------------------------------------------------------------ */
#ifdef L_modsi3
#if defined(__ARM_ARCH_EXT_IDIV__)
#if defined(__ARM_ARCH_EXT_IDIV__) && __ARM_ARCH_ISA_THUMB != 1
ARM_FUNC_START modsi3
@ -1515,7 +1519,7 @@ LSYM(Lover12):
#endif
#ifdef L_clzsi2
#if defined(__ARM_ARCH_6M__)
#ifdef NOT_ISA_TARGET_32BIT
FUNC_START clzsi2
mov r1, #28
mov r3, #1
@ -1576,7 +1580,7 @@ ARM_FUNC_START clzsi2
#ifdef L_clzdi2
#if !defined(HAVE_ARM_CLZ)
# if defined(__ARM_ARCH_6M__)
# ifdef NOT_ISA_TARGET_32BIT
FUNC_START clzdi2
push {r4, lr}
# else
@ -1601,7 +1605,7 @@ ARM_FUNC_START clzdi2
bl __clzsi2
# endif
2:
# if defined(__ARM_ARCH_6M__)
# ifdef NOT_ISA_TARGET_32BIT
pop {r4, pc}
# else
RETLDM r4
@ -1623,7 +1627,7 @@ ARM_FUNC_START clzdi2
#endif /* L_clzdi2 */
#ifdef L_ctzsi2
#if defined(__ARM_ARCH_6M__)
#ifdef NOT_ISA_TARGET_32BIT
FUNC_START ctzsi2
neg r1, r0
and r0, r0, r1
@ -1738,7 +1742,7 @@ ARM_FUNC_START ctzsi2
/* Don't bother with the old interworking routines for Thumb-2. */
/* ??? Maybe only omit these on "m" variants. */
#if !defined(__thumb2__) && !defined(__ARM_ARCH_6M__)
#if !defined(__thumb2__) && __ARM_ARCH_ISA_ARM
#if defined L_interwork_call_via_rX
@ -1983,11 +1987,12 @@ LSYM(Lchange_\register):
.endm
#ifndef __symbian__
#ifndef __ARM_ARCH_6M__
/* The condition here must match the one in gcc/config/arm/elf.h. */
#ifndef NOT_ISA_TARGET_32BIT
#include "ieee754-df.S"
#include "ieee754-sf.S"
#include "bpabi.S"
#else /* __ARM_ARCH_6M__ */
#else /* NOT_ISA_TARGET_32BIT */
#include "bpabi-v6m.S"
#endif /* __ARM_ARCH_6M__ */
#endif /* NOT_ISA_TARGET_32BIT */
#endif /* !__symbian__ */

6
libgcc/config/arm/libunwind.S
View file

@ -58,7 +58,7 @@
#endif
#endif
#ifdef __ARM_ARCH_6M__
#if !__ARM_ARCH_ISA_ARM && __ARM_ARCH_ISA_THUMB == 1
/* r0 points to a 16-word block. Upload these values to the actual core
state. */
@ -169,7 +169,7 @@ FUNC_START gnu_Unwind_Save_WMMXC
UNPREFIX \name
.endm
#else /* !__ARM_ARCH_6M__ */
#else /* __ARM_ARCH_ISA_ARM || __ARM_ARCH_ISA_THUMB != 1 */
/* r0 points to a 16-word block. Upload these values to the actual core
state. */
@ -351,7 +351,7 @@ ARM_FUNC_START gnu_Unwind_Save_WMMXC
UNPREFIX \name
.endm
#endif /* !__ARM_ARCH_6M__ */
#endif /* __ARM_ARCH_ISA_ARM || __ARM_ARCH_ISA_THUMB != 1 */
UNWIND_WRAPPER _Unwind_RaiseException 1
UNWIND_WRAPPER _Unwind_Resume 1

2
libgcc/config/arm/t-softfp
View file

@ -1,2 +1,2 @@
softfp_wrap_start := '\#ifdef __ARM_ARCH_6M__'
softfp_wrap_start := '\#if !__ARM_ARCH_ISA_ARM && __ARM_ARCH_ISA_THUMB == 1'
softfp_wrap_end := '\#endif'