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authorYufeng Zhang <yufeng.zhang@arm.com>2013-06-26 10:41:42 +0000
committerYufeng Zhang <yufeng.zhang@arm.com>2013-06-26 10:41:42 +0000
commitcec5225bd81f750984856603755854f0f5796ab1 (patch)
treeffb2ca80692dcd0fa3764f4042b7f515efa6f11e /bfd/cpu-aarch64.c
parent811971141320a4b6a6af86c9efc9a48418accaab (diff)
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[AArch64, ILP32] 2/6 Parametrize elfnn-aarch64.c and add basic support in ld
and gas. bfd/ * Makefile.am (BFD64_BACKENDS): Add elf32-aarch64.lo. (BUILD_CFILES): Add elf32-aarch64.c. (elf32-aarch64.c): New rule for generating from elfnn-aarch64.c. * Makefile.in: Re-generated. * archures.c (bfd_mach_aarch64_ilp32): New define. * bfd-in.h (bfd_elf32_aarch64_init_maps): New declaration. (bfd_elf32_aarch64_set_options): Ditto. (elf32_aarch64_setup_section_lists): Ditto. (elf32_aarch64_next_input_section): Ditto. (elf32_aarch64_size_stubs): Ditto. (elf32_aarch64_build_stubs): Ditto. * bfd-in2.h: Re-generated. * config.bfd (aarch64-*-elf): Add bfd_elf32_littleaarch64_vec and bfd_elf32_bigaarch64_vec. (aarch64-*-linux*): Likewise. (aarch64_be-*-elf): Likewise. (aarch64_be-*-linux*): Likewise. * configure.in (bfd_elf32_bigaarch64_vec) (bfd_elf32_littleaarch64_vec): New. * configure: Re-generated. * cpu-aarch64.c (compatible): Don't allow mixing ilp32 objects with lp64 ones. (bfd_aarch64_arch_ilp32): New. (bfd_aarch64_arch): Link to bfd_aarch64_arch_ilp32. * elfnn-aarch64.c (ARCH_SIZE): New define. (AARCH64_R, AARCH64_R_STR, LOG_FILE_ALIGN): New defines. (GOT_ENTRY_SIZE): Re-define as (ARCH_SIZE / 8). (elf64_aarch64_*): Rename to elfNN_aarch64_*. (ELF64_R_*): Rename to ELFNN_R_*. Plus other paramaterization. * targets.c (bfd_elf32_bigaarch64_vec, bfd_elf32_littleaarch64_vec): New declarations. (_bfd_target_vector): Add bfd_elf32_bigaarch64_vec and bfd_elf32_littleaarch64_vec. gas/ * config/tc-aarch64.c (ilp32_p): New static variable. (elf64_aarch64_target_format): Return the target according to the value of 'ilp32_p'. (md_begin): Determine 'mach' according to the value of 'ilp32_p'. (aarch64_opts): Add support for options '-milp32' and '-mlp64'. (aarch64_dwarf2_addr_size): New function. * config/tc-aarch64.h (aarch64_dwarf2_addr_size): New declaration. (DWARF2_ADDR_SIZE): New define. ld/ * Makefile.am (ALL_64_EMULATION_SOURCES): Add eaarch64elf32.c. (eaarch64elf32.c): New dependency and rule. * Makefile.in: Re-generated. * configure.tgt (aarch64-*-elf): Add aarch64elf32. (aarch64_be-*-elf, aarch64_be-*-linux*, aarch64-*-linux*): Likewise. * emulparams/aarch64elf32.sh: New file.
Diffstat (limited to 'bfd/cpu-aarch64.c')
-rw-r--r--bfd/cpu-aarch64.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/bfd/cpu-aarch64.c b/bfd/cpu-aarch64.c
index 8162037..9ec18a0 100644
--- a/bfd/cpu-aarch64.c
+++ b/bfd/cpu-aarch64.c
@@ -38,6 +38,10 @@ compatible (const bfd_arch_info_type * a, const bfd_arch_info_type * b)
if (a->mach == b->mach)
return a;
+ /* Don't allow mixing ilp32 with lp64. */
+ if ((a->mach & bfd_mach_aarch64_ilp32) != (b->mach & bfd_mach_aarch64_ilp32))
+ return NULL;
+
/* Otherwise if either a or b is the 'default' machine
then it can be polymorphed into the other. */
if (a->the_default)
@@ -101,9 +105,11 @@ scan (const struct bfd_arch_info *info, const char *string)
"aarch64", PRINT, 4, DEFAULT, compatible, scan, \
bfd_arch_default_fill, NEXT }
-const bfd_arch_info_type bfd_aarch64_arch =
- N (0, "aarch64", TRUE, NULL);
+static const bfd_arch_info_type bfd_aarch64_arch_ilp32 =
+ N (bfd_mach_aarch64_ilp32, "aarch64:ilp32", FALSE, NULL);
+const bfd_arch_info_type bfd_aarch64_arch =
+ N (0, "aarch64", TRUE, &bfd_aarch64_arch_ilp32);
bfd_boolean
bfd_is_aarch64_special_symbol_name (const char *name, int type)