[AArch64, gas] Support ILP32 triplet aarch64*-linux-gnu_ilp32
This patch allows AArch64 GAS defaulting to ILP32 if it is configured with
aarch64*-linux-gnu_ilp32.
"md_after_parse_args" is implemented to update ABI into ILP32 if DEFAULT_ARCH is
"aarch64:32".
gas/
* configure.tgt: Set "arch" to "aarch64" if ${cpu} equals "aarch64".
Recognize the new triplet name aarch64*-linux-gnu_ilp32.
* configure.ac: Output DEFAULT_ARCH macro for AArch64.
* configure: Regenerate.
* config/tc-aarch64.h (aarch64_after_parse_args): New declaration.
(md_after_parse_args): New define.
* config/tc-aarch64.c (aarch64_abi_type): New enumeration
AARCH64_ABI_NONE.
(DEFAULT_ARCH): New define.
(aarch64_abi): Set default value to AARCH64_ABI_NONE.
(aarch64_after_parse_args): New function.
This commit is contained in:
Jiong Wang
parent
e11b3cdc56
commit
3c0367d0e2
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@ -1,3 +1,17 @@
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2017-05-22 Jiong Wang <jiong.wang@arm.com>
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* configure.tgt: Set "arch" to "aarch64" if ${cpu} equals "aarch64".
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Recognize the new triplet name aarch64*-linux-gnu_ilp32.
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* configure.ac: Output DEFAULT_ARCH macro for AArch64.
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* configure: Regenerate.
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* config/tc-aarch64.h (aarch64_after_parse_args): New declaration.
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(md_after_parse_args): New define.
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* config/tc-aarch64.c (aarch64_abi_type): New enumeration
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AARCH64_ABI_NONE.
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(DEFAULT_ARCH): New define.
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(aarch64_abi): Set default value to AARCH64_ABI_NONE.
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(aarch64_after_parse_args): New function.
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2017-05-19 Jose E. Marchesi <jose.marchesi@oracle.com>
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* config/tc-sparc.c (sparc_arch_table): Entries for `sparc6',
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@ -62,12 +62,20 @@ static symbolS *GOT_symbol;
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/* Which ABI to use. */
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enum aarch64_abi_type
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{
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AARCH64_ABI_LP64 = 0,
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AARCH64_ABI_ILP32 = 1
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AARCH64_ABI_NONE = 0,
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AARCH64_ABI_LP64 = 1,
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AARCH64_ABI_ILP32 = 2
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};
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#ifndef DEFAULT_ARCH
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#define DEFAULT_ARCH "aarch64"
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#endif
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/* DEFAULT_ARCH is initialized in gas/configure.tgt. */
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static const char *default_arch = DEFAULT_ARCH;
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/* AArch64 ABI for the output file. */
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static enum aarch64_abi_type aarch64_abi = AARCH64_ABI_LP64;
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static enum aarch64_abi_type aarch64_abi = AARCH64_ABI_NONE;
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/* When non-zero, program to a 32-bit model, in which the C data types
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int, long and all pointer types are 32-bit objects (ILP32); or to a
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@ -7975,6 +7983,22 @@ aarch64_force_relocation (struct fix *fixp)
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#ifdef OBJ_ELF
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/* Implement md_after_parse_args. This is the earliest time we need to decide
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ABI. If no -mabi specified, the ABI will be decided by target triplet. */
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void
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aarch64_after_parse_args (void)
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{
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if (aarch64_abi != AARCH64_ABI_NONE)
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return;
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/* DEFAULT_ARCH will have ":32" extension if it's configured for ILP32. */
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if (strlen (default_arch) > 7 && strcmp (default_arch + 7, ":32") == 0)
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aarch64_abi = AARCH64_ABI_ILP32;
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else
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aarch64_abi = AARCH64_ABI_LP64;
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}
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const char *
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elf64_aarch64_target_format (void)
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{
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@ -192,6 +192,9 @@ struct aarch64_segment_info_type
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#define tc_regname_to_dw2regnum tc_aarch64_regname_to_dw2regnum
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#define tc_cfi_frame_initial_instructions tc_aarch64_frame_initial_instructions
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extern void aarch64_after_parse_args (void);
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#define md_after_parse_args() aarch64_after_parse_args ()
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#else /* Not OBJ_ELF. */
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#define GLOBAL_OFFSET_TABLE_NAME "__GLOBAL_OFFSET_TABLE_"
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#endif
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@ -12583,7 +12583,7 @@ $as_echo "#define NDS32_DEFAULT_AUDIO_EXT 1" >>confdefs.h
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$as_echo "$enable_audio_ext" >&6; }
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;;
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i386 | riscv | s390 | sparc)
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aarch64 | i386 | riscv | s390 | sparc)
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if test $this_target = $target ; then
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cat >>confdefs.h <<_ACEOF
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@ -511,7 +511,7 @@ changequote([,])dnl
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AC_MSG_RESULT($enable_audio_ext)
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;;
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i386 | riscv | s390 | sparc)
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aarch64 | i386 | riscv | s390 | sparc)
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if test $this_target = $target ; then
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AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
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fi
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@ -46,8 +46,8 @@ eval `echo $targ | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/cpu=\1 vendor=\2 os=\3/'`
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# endian and arch.
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# Note: This table is alpha-sorted, please try to keep it that way.
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case ${cpu} in
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aarch64) cpu_type=aarch64 endian=little ;;
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aarch64_be) cpu_type=aarch64 endian=big ;;
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aarch64) cpu_type=aarch64 endian=little arch=aarch64;;
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aarch64_be) cpu_type=aarch64 endian=big arch=aarch64;;
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alpha*) cpu_type=alpha ;;
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am33_2.0) cpu_type=mn10300 endian=little ;;
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arc*eb) cpu_type=arc endian=big ;;
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@ -126,7 +126,10 @@ generic_target=${cpu_type}-$vendor-$os
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case ${generic_target} in
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aarch64*-*-elf*) fmt=elf;;
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aarch64*-*-fuchsia*) fmt=elf;;
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aarch64*-*-linux*) fmt=elf em=linux ;;
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aarch64*-*-linux*) fmt=elf em=linux
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case ${cpu}-${os} in
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aarch64*-linux-gnu_ilp32) arch=aarch64:32 ;;
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esac ;;
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alpha-*-*vms*) fmt=evax ;;
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alpha-*-osf*) fmt=ecoff ;;
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