# This shell script emits a C file. -*- C -*-
-# Copyright (C) 1991-2015 Free Software Foundation, Inc.
+# Copyright (C) 1991-2016 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
#include "ldctor.h"
#include "elf/arm.h"
-static char * thumb_entry_symbol = NULL;
-static int byteswap_code = 0;
-static int target1_is_rel = 0${TARGET1_IS_REL};
-static char * target2_type = "${TARGET2_TYPE}";
-static int fix_v4bx = 0;
-static int use_blx = 0;
-static bfd_arm_vfp11_fix vfp11_denorm_fix = BFD_ARM_VFP11_FIX_DEFAULT;
-static bfd_arm_stm32l4xx_fix stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_NONE;
-static int fix_cortex_a8 = -1;
-static int no_enum_size_warning = 0;
-static int no_wchar_size_warning = 0;
-static int pic_veneer = 0;
-static int merge_exidx_entries = -1;
-static int fix_arm1176 = 1;
+static struct elf32_arm_params params =
+{
+ NULL, /* thumb_entry_symbol */
+ 0, /* byteswap_code */
+ 0${TARGET1_IS_REL}, /* target1_is_rel */
+ "${TARGET2_TYPE}", /* target2_type */
+ 0, /* fix_v4bx */
+ 0, /* use_blx */
+ BFD_ARM_VFP11_FIX_DEFAULT, /* vfp11_denorm_fix */
+ BFD_ARM_STM32L4XX_FIX_NONE, /* stm32l4xx_fix */
+ 0, /* no_enum_size_warning */
+ 0, /* no_wchar_size_warning */
+ 0, /* pic_veneer */
+ -1, /* fix_cortex_a8 */
+ 1, /* fix_arm1176 */
+ -1, /* merge_exidx_entries */
+ 0, /* cmse_implib */
+ NULL /* in_implib_bfd */
+};
+static char *in_implib_filename = NULL;
static void
gld${EMULATION_NAME}_before_parse (void)
input_flags.dynamic = ${DYNAMIC_LINK-TRUE};
config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
+ link_info.relro = DEFAULT_LD_Z_RELRO;
}
static void
static void
arm_elf_before_allocation (void)
{
- bfd_elf32_arm_set_byteswap_code (&link_info, byteswap_code);
+ bfd_elf32_arm_set_byteswap_code (&link_info, params.byteswap_code);
/* Choose type of VFP11 erratum fix, or warn if specified fix is unnecessary
due to architecture version. */
/* Auto-select Cortex-A8 erratum fix if it wasn't explicitly specified. */
bfd_elf32_arm_set_cortex_a8_fix (link_info.output_bfd, &link_info);
+ /* Ensure the output sections of veneers needing a dedicated one is not
+ removed. */
+ bfd_elf32_arm_keep_private_stub_output_sections (&link_info);
+
/* We should be able to set the size of the interworking stub section. We
can't do it until later if we have dynamic sections, though. */
if (elf_hash_table (&link_info)->dynobj == NULL)
static asection *
elf32_arm_add_stub_section (const char * stub_sec_name,
- asection * input_section,
+ asection * output_section,
+ asection * after_input_section,
unsigned int alignment_power)
{
asection *stub_sec;
flagword flags;
- asection *output_section;
lang_output_section_statement_type *os;
struct hook_stub_info info;
bfd_set_section_alignment (stub_file->the_bfd, stub_sec, alignment_power);
- output_section = input_section->output_section;
os = lang_output_section_get (output_section);
- info.input_section = input_section;
+ info.input_section = after_input_section;
lang_list_init (&info.add);
lang_add_section (&info.add, stub_sec, NULL, os);
if (info.add.head == NULL)
goto err_ret;
- if (hook_in_stub (&info, &os->children.head))
- return stub_sec;
+ if (after_input_section == NULL)
+ {
+ lang_statement_union_type **lp = &os->children.head;
+ lang_statement_union_type *l, *lprev = NULL;
+
+ for (; (l = *lp) != NULL; lp = &l->header.next, lprev = l);
+
+ if (lprev)
+ lprev->header.next = info.add.head;
+ else
+ os->children.head = info.add.head;
+
+ return stub_sec;
+ }
+ else
+ {
+ if (hook_in_stub (&info, &os->children.head))
+ return stub_sec;
+ }
err_ret:
einfo ("%X%P: can not make stub section: %E\n");
qsort (sec_list, sec_count, sizeof (asection *), &compare_output_sec_vma);
if (elf32_arm_fix_exidx_coverage (sec_list, sec_count, &link_info,
- merge_exidx_entries))
+ params.merge_exidx_entries))
need_laying_out = 1;
free (sec_list);
finish_default ();
- if (thumb_entry_symbol)
+ if (params.thumb_entry_symbol)
{
- h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
+ h = bfd_link_hash_lookup (link_info.hash, params.thumb_entry_symbol,
FALSE, FALSE, TRUE);
}
else
h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name,
FALSE, FALSE, TRUE);
eh = (struct elf_link_hash_entry *)h;
- if (!h || eh->target_internal != ST_BRANCH_TO_THUMB)
+ if (!h || ARM_GET_SYM_BRANCH_TYPE (eh->target_internal)
+ != ST_BRANCH_TO_THUMB)
return;
}
sprintf_vma (buffer + 2, val);
- if (thumb_entry_symbol != NULL && entry_symbol.name != NULL
+ if (params.thumb_entry_symbol != NULL && entry_symbol.name != NULL
&& entry_from_cmdline)
einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
- thumb_entry_symbol, entry_symbol.name);
+ params.thumb_entry_symbol, entry_symbol.name);
entry_symbol.name = buffer;
}
else
einfo (_("%P: warning: cannot find thumb start symbol %s\n"),
- thumb_entry_symbol);
+ params.thumb_entry_symbol);
}
/* This is a convenient point to tell BFD about target specific flags.
return;
}
- bfd_elf32_arm_set_target_relocs (link_info.output_bfd, &link_info,
- target1_is_rel,
- target2_type, fix_v4bx, use_blx,
- vfp11_denorm_fix, stm32l4xx_fix,
- no_enum_size_warning,
- no_wchar_size_warning,
- pic_veneer, fix_cortex_a8,
- fix_arm1176);
+ if (in_implib_filename)
+ {
+ params.in_implib_bfd = bfd_openr (in_implib_filename,
+ bfd_get_target (link_info.output_bfd));
+
+ if (params.in_implib_bfd == NULL)
+ einfo ("%F%s: Can't open: %E\n", in_implib_filename);
+
+ if (!bfd_check_format (params.in_implib_bfd, bfd_object))
+ einfo ("%F%s: Not a relocatable file: %E\n", in_implib_filename);
+ }
+
+ bfd_elf32_arm_set_target_params (link_info.output_bfd, &link_info, ¶ms);
stub_file = lang_add_input_file ("linker stubs",
lang_input_file_is_fake_enum,
#define OPTION_NO_FIX_ARM1176 318
#define OPTION_LONG_PLT 319
#define OPTION_STM32L4XX_FIX 320
+#define OPTION_CMSE_IMPLIB 321
+#define OPTION_IN_IMPLIB 322
'
PARSE_AND_LIST_SHORTOPTS=p
{ "fix-arm1176", no_argument, NULL, OPTION_FIX_ARM1176 },
{ "no-fix-arm1176", no_argument, NULL, OPTION_NO_FIX_ARM1176 },
{ "long-plt", no_argument, NULL, OPTION_LONG_PLT },
+ { "cmse-implib", no_argument, NULL, OPTION_CMSE_IMPLIB },
+ { "in-implib", required_argument, NULL, OPTION_IN_IMPLIB },
'
PARSE_AND_LIST_OPTIONS='
fprintf (file, _(" --pic-veneer Always generate PIC interworking veneers\n"));
fprintf (file, _(" --long-plt Generate long .plt entries\n"
" to handle large .plt/.got displacements\n"));
+ fprintf (file, _(" --cmse-implib Make import library to be a secure gateway import\n"
+ " library as per ARMv8-M Security Extensions\n"));
+ fprintf (file, _(" --in-implib Import library whose symbols address must\n"
+ " remain stable\n"));
fprintf (file, _("\
--stub-group-size=N Maximum size of a group of input sections that\n\
can be handled by one stub section. A negative\n\
break;
case OPTION_THUMB_ENTRY:
- thumb_entry_symbol = optarg;
+ params.thumb_entry_symbol = optarg;
break;
case OPTION_BE8:
- byteswap_code = 1;
+ params.byteswap_code = 1;
break;
case OPTION_TARGET1_REL:
- target1_is_rel = 1;
+ params.target1_is_rel = 1;
break;
case OPTION_TARGET1_ABS:
- target1_is_rel = 0;
+ params.target1_is_rel = 0;
break;
case OPTION_TARGET2:
- target2_type = optarg;
+ params.target2_type = optarg;
break;
case OPTION_FIX_V4BX:
- fix_v4bx = 1;
+ params.fix_v4bx = 1;
break;
case OPTION_FIX_V4BX_INTERWORKING:
- fix_v4bx = 2;
+ params.fix_v4bx = 2;
break;
case OPTION_USE_BLX:
- use_blx = 1;
+ params.use_blx = 1;
break;
case OPTION_VFP11_DENORM_FIX:
if (strcmp (optarg, "none") == 0)
- vfp11_denorm_fix = BFD_ARM_VFP11_FIX_NONE;
+ params.vfp11_denorm_fix = BFD_ARM_VFP11_FIX_NONE;
else if (strcmp (optarg, "scalar") == 0)
- vfp11_denorm_fix = BFD_ARM_VFP11_FIX_SCALAR;
+ params.vfp11_denorm_fix = BFD_ARM_VFP11_FIX_SCALAR;
else if (strcmp (optarg, "vector") == 0)
- vfp11_denorm_fix = BFD_ARM_VFP11_FIX_VECTOR;
+ params.vfp11_denorm_fix = BFD_ARM_VFP11_FIX_VECTOR;
else
einfo (_("Unrecognized VFP11 fix type '\''%s'\''.\n"), optarg);
break;
case OPTION_STM32L4XX_FIX:
if (!optarg)
- stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_DEFAULT;
+ params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_DEFAULT;
else if (strcmp (optarg, "none") == 0)
- stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_NONE;
+ params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_NONE;
else if (strcmp (optarg, "default") == 0)
- stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_DEFAULT;
+ params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_DEFAULT;
else if (strcmp (optarg, "all") == 0)
- stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_ALL;
+ params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_ALL;
else
einfo (_("Unrecognized STM32L4XX fix type '\''%s'\''.\n"), optarg);
break;
case OPTION_NO_ENUM_SIZE_WARNING:
- no_enum_size_warning = 1;
+ params.no_enum_size_warning = 1;
break;
case OPTION_NO_WCHAR_SIZE_WARNING:
- no_wchar_size_warning = 1;
+ params.no_wchar_size_warning = 1;
break;
case OPTION_PIC_VENEER:
- pic_veneer = 1;
+ params.pic_veneer = 1;
break;
case OPTION_STUBGROUP_SIZE:
break;
case OPTION_FIX_CORTEX_A8:
- fix_cortex_a8 = 1;
+ params.fix_cortex_a8 = 1;
break;
case OPTION_NO_FIX_CORTEX_A8:
- fix_cortex_a8 = 0;
+ params.fix_cortex_a8 = 0;
break;
case OPTION_NO_MERGE_EXIDX_ENTRIES:
- merge_exidx_entries = 0;
+ params.merge_exidx_entries = 0;
break;
case OPTION_FIX_ARM1176:
- fix_arm1176 = 1;
+ params.fix_arm1176 = 1;
break;
case OPTION_NO_FIX_ARM1176:
- fix_arm1176 = 0;
+ params.fix_arm1176 = 0;
break;
case OPTION_LONG_PLT:
bfd_elf32_arm_use_long_plt ();
break;
+
+ case OPTION_CMSE_IMPLIB:
+ params.cmse_implib = 1;
+ break;
+
+ case OPTION_IN_IMPLIB:
+ in_implib_filename = optarg;
+ break;
'
# We have our own before_allocation etc. functions, but they call
projects / deliverable / binutils-gdb.git / blobdiff