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Index: libexec/rtld-elf/aarch64/rtld_machdep.h
===================================================================
--- libexec/rtld-elf/aarch64/rtld_machdep.h
+++ libexec/rtld-elf/aarch64/rtld_machdep.h
@@ -80,4 +80,6 @@
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
+#define md_abi_variant_hook(x)
+
#endif
Index: libexec/rtld-elf/amd64/rtld_machdep.h
===================================================================
--- libexec/rtld-elf/amd64/rtld_machdep.h
+++ libexec/rtld-elf/amd64/rtld_machdep.h
@@ -79,4 +79,6 @@
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
+#define md_abi_variant_hook(x)
+
#endif
Index: libexec/rtld-elf/arm/reloc.c
===================================================================
--- libexec/rtld-elf/arm/reloc.c
+++ libexec/rtld-elf/arm/reloc.c
@@ -15,6 +15,42 @@
#include "debug.h"
#include "rtld.h"
+#include "paths.h"
+
+void
+arm_abi_variant_hook(Elf_Auxinfo **aux_info)
+{
+ Elf_Word ehdr;
+
+ /*
+ * If we're running an old kenrel that doesn't provide any data fail
+ * safe by doing nothing.
+ */
+ if (aux_info[AT_EHDRFLAGS] == NULL)
+ return;
+ ehdr = aux_info[AT_EHDRFLAGS]->a_un.a_val;
+
+ /*
+ * Hard float binaries are the default, and use the default paths and
+ * such.
+ */
+ if (ehdr & EF_ARM_VFP_FLOAT)
+ return;
+
+ /*
+ * This is a soft float binary. We need to use the soft float
+ * settings. For the moment, the standard library path includes the hard
+ * float paths as well. When upgrading, we need to execute the wrong
+ * kind of binary until we've installed the new binaries. We could go
+ * off whether or not /lib/soft exists, but the simplicity of having it
+ * in the path wins.
+ */
+ ld_path_elf_hints = _PATH_SOFT_ELF_HINTS;
+ ld_path_libmap_conf = _PATH_SOFT_LIBMAP_CONF;
+ ld_path_rtld = _PATH_SOFT_RTLD;
+ ld_standard_library_path = SOFT_STANDARD_LIBRARY_PATH;
+ ld_env_prefix = LD_SOFT_;
+}
void
init_pltgot(Obj_Entry *obj)
Index: libexec/rtld-elf/arm/rtld_machdep.h
===================================================================
--- libexec/rtld-elf/arm/rtld_machdep.h
+++ libexec/rtld-elf/arm/rtld_machdep.h
@@ -75,4 +75,9 @@
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
+extern void arm_abi_variant_hook(Elf_Auxinfo **);
+
+#define md_abi_variant_hook(x) arm_abi_variant_hook(x)
+#define RTLD_VARIANT_ENV_NAMES
+
#endif
Index: libexec/rtld-elf/i386/rtld_machdep.h
===================================================================
--- libexec/rtld-elf/i386/rtld_machdep.h
+++ libexec/rtld-elf/i386/rtld_machdep.h
@@ -80,4 +80,6 @@
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
+#define md_abi_variant_hook(x)
+
#endif
Index: libexec/rtld-elf/libmap.c
===================================================================
--- libexec/rtld-elf/libmap.c
+++ libexec/rtld-elf/libmap.c
@@ -16,15 +16,7 @@
#include "debug.h"
#include "rtld.h"
#include "libmap.h"
-
-#ifndef _PATH_LIBMAP_CONF
-#define _PATH_LIBMAP_CONF "/etc/libmap.conf"
-#endif
-
-#ifdef COMPAT_32BIT
-#undef _PATH_LIBMAP_CONF
-#define _PATH_LIBMAP_CONF "/etc/libmap32.conf"
-#endif
+#include "paths.h"
TAILQ_HEAD(lm_list, lm);
struct lm {
@@ -76,7 +68,7 @@
dbg("lm_init(\"%s\")", libmap_override);
TAILQ_INIT(&lmp_head);
- lmc_parse_file(_PATH_LIBMAP_CONF);
+ lmc_parse_file(ld_path_libmap_conf);
if (libmap_override) {
/*
Index: libexec/rtld-elf/malloc.c
===================================================================
--- libexec/rtld-elf/malloc.c
+++ libexec/rtld-elf/malloc.c
@@ -45,7 +45,6 @@
#include <sys/types.h>
#include <sys/sysctl.h>
-#include <paths.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
Index: libexec/rtld-elf/mips/rtld_machdep.h
===================================================================
--- libexec/rtld-elf/mips/rtld_machdep.h
+++ libexec/rtld-elf/mips/rtld_machdep.h
@@ -75,4 +75,6 @@
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
+#define md_abi_variant_hook(x)
+
#endif
Index: libexec/rtld-elf/paths.h
===================================================================
--- /dev/null
+++ libexec/rtld-elf/paths.h
@@ -0,0 +1,74 @@
+/*-
+ * Copyright 1996, 1997, 1998, 1999, 2000 John D. Polstra.
+ * Copyright 2003 Alexander Kabaev <kan@FreeBSD.ORG>.
+ * Copyright 2009-2012 Konstantin Belousov <kib@FreeBSD.ORG>.
+ * Copyright 2012 John Marino <draco@marino.st>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef PATHS_H
+#define PATHS_H
+
+#ifdef COMPAT_32BIT
+#define _PATH_ELF_HINTS "/var/run/ld-elf32.so.hints"
+#define _PATH_LIBMAP_CONF "/etc/libmap32.conf"
+#define _PATH_RTLD "/libexec/ld-elf32.so.1"
+#define STANDARD_LIBRARY_PATH "/lib32:/usr/lib32"
+#define LD_ "LD_32_"
+#endif
+
+#ifndef _PATH_ELF_HINTS
+#define _PATH_ELF_HINTS "/var/run/ld-elf.so.hints"
+#endif
+
+#ifndef _PATH_LIBMAP_CONF
+#define _PATH_LIBMAP_CONF "/etc/libmap.conf"
+#endif
+
+#ifndef _PATH_RTLD
+#define _PATH_RTLD "/libexec/ld-elf.so.1"
+#endif
+
+#ifndef STANDARD_LIBRARY_PATH
+#define STANDARD_LIBRARY_PATH "/lib:/usr/lib"
+#endif
+
+#ifndef LD_
+#define LD_ "LD_"
+#endif
+
+#define _PATH_SOFT_ELF_HINTS "/var/run/ld-elf-soft.so.hints"
+#define _PATH_SOFT_LIBMAP_CONF "/etc/libmap-soft.conf"
+#define _PATH_SOFT_RTLD "/libexec/ld-elf-soft.so.1"
+#define SOFT_STANDARD_LIBRARY_PATH "/lib/soft:/usr/lib/soft:/lib:/usr/lib"
+#define LD_SOFT_ "LD_SOFT_"
+
+extern char *ld_path_elf_hints;
+extern char *ld_path_libmap_conf;
+extern char *ld_path_rtld;
+extern char *ld_standard_library_path;
+extern char *ld_env_prefix;
+
+#endif /* PATHS_H */
Index: libexec/rtld-elf/powerpc/rtld_machdep.h
===================================================================
--- libexec/rtld-elf/powerpc/rtld_machdep.h
+++ libexec/rtld-elf/powerpc/rtld_machdep.h
@@ -90,4 +90,6 @@
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
+#define md_abi_variant_hook(x)
+
#endif
Index: libexec/rtld-elf/powerpc64/rtld_machdep.h
===================================================================
--- libexec/rtld-elf/powerpc64/rtld_machdep.h
+++ libexec/rtld-elf/powerpc64/rtld_machdep.h
@@ -82,4 +82,6 @@
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
+#define md_abi_variant_hook(x)
+
#endif
Index: libexec/rtld-elf/rtld.h
===================================================================
--- libexec/rtld-elf/rtld.h
+++ libexec/rtld-elf/rtld.h
@@ -41,22 +41,6 @@
#include "rtld_lock.h"
#include "rtld_machdep.h"
-#ifdef COMPAT_32BIT
-#undef STANDARD_LIBRARY_PATH
-#undef _PATH_ELF_HINTS
-#define _PATH_ELF_HINTS "/var/run/ld-elf32.so.hints"
-/* For running 32 bit binaries */
-#define STANDARD_LIBRARY_PATH "/lib32:/usr/lib32"
-#define LD_ "LD_32_"
-#endif
-
-#ifndef STANDARD_LIBRARY_PATH
-#define STANDARD_LIBRARY_PATH "/lib:/usr/lib"
-#endif
-#ifndef LD_
-#define LD_ "LD_"
-#endif
-
#define NEW(type) ((type *) xmalloc(sizeof(type)))
#define CNEW(type) ((type *) xcalloc(1, sizeof(type)))
Index: libexec/rtld-elf/rtld.c
===================================================================
--- libexec/rtld-elf/rtld.c
+++ libexec/rtld-elf/rtld.c
@@ -54,18 +54,13 @@
#include <unistd.h>
#include "debug.h"
+#include "paths.h"
#include "rtld.h"
#include "libmap.h"
#include "rtld_tls.h"
#include "rtld_printf.h"
#include "notes.h"
-#ifndef COMPAT_32BIT
-#define PATH_RTLD "/libexec/ld-elf.so.1"
-#else
-#define PATH_RTLD "/libexec/ld-elf32.so.1"
-#endif
-
/* Types. */
typedef void (*func_ptr_type)();
typedef void * (*path_enum_proc) (const char *path, size_t len, void *arg);
@@ -260,6 +255,15 @@
bool ld_library_path_rpath = false;
/*
+ * Globals for path names, and such
+ */
+char *ld_path_elf_hints = _PATH_ELF_HINTS;
+char *ld_path_libmap_conf = _PATH_LIBMAP_CONF;
+char *ld_path_rtld = _PATH_RTLD;
+char *ld_standard_library_path = STANDARD_LIBRARY_PATH;
+char *ld_env_prefix = LD_;
+
+/*
* Fill in a DoneList with an allocation large enough to hold all of
* the currently-loaded objects. Keep this as a macro since it calls
* alloca and we want that to occur within the scope of the caller.
@@ -319,6 +323,24 @@
utrace(&ut, sizeof(ut));
}
+#ifdef RTLD_VARIANT_ENV_NAMES
+/*
+ * construct the env variable based on the type of binary that's
+ * running.
+ */
+static inline const char *
+_LD(const char *var)
+{
+ static char buffer[128];
+
+ strlcpy(buffer, ld_env_prefix, sizeof(buffer));
+ strlcat(buffer, var, sizeof(buffer));
+ return buffer;
+}
+#else
+#define _LD(x) LD_ x
+#endif
+
/*
* Main entry point for dynamic linking. The first argument is the
* stack pointer. The stack is expected to be laid out as described
@@ -413,7 +435,9 @@
trust = !issetugid();
- ld_bind_now = getenv(LD_ "BIND_NOW");
+ md_abi_variant_hook(aux_info);
+
+ ld_bind_now = getenv(_LD("BIND_NOW"));
/*
* If the process is tainted, then we un-set the dangerous environment
* variables. The process will be marked as tainted until setuid(2)
@@ -421,24 +445,24 @@
* future processes to honor the potentially un-safe variables.
*/
if (!trust) {
- if (unsetenv(LD_ "PRELOAD") || unsetenv(LD_ "LIBMAP") ||
- unsetenv(LD_ "LIBRARY_PATH") || unsetenv(LD_ "LIBRARY_PATH_FDS") ||
- unsetenv(LD_ "LIBMAP_DISABLE") ||
- unsetenv(LD_ "DEBUG") || unsetenv(LD_ "ELF_HINTS_PATH") ||
- unsetenv(LD_ "LOADFLTR") || unsetenv(LD_ "LIBRARY_PATH_RPATH")) {
+ if (unsetenv(_LD("PRELOAD")) || unsetenv(_LD("LIBMAP")) ||
+ unsetenv(_LD("LIBRARY_PATH")) || unsetenv(_LD("LIBRARY_PATH_FDS")) ||
+ unsetenv(_LD("LIBMAP_DISABLE")) ||
+ unsetenv(_LD("DEBUG")) || unsetenv(_LD("ELF_HINTS_PATH")) ||
+ unsetenv(_LD("LOADFLTR")) || unsetenv(_LD("LIBRARY_PATH_RPATH"))) {
_rtld_error("environment corrupt; aborting");
rtld_die();
}
}
- ld_debug = getenv(LD_ "DEBUG");
- libmap_disable = getenv(LD_ "LIBMAP_DISABLE") != NULL;
- libmap_override = getenv(LD_ "LIBMAP");
- ld_library_path = getenv(LD_ "LIBRARY_PATH");
- ld_library_dirs = getenv(LD_ "LIBRARY_PATH_FDS");
- ld_preload = getenv(LD_ "PRELOAD");
- ld_elf_hints_path = getenv(LD_ "ELF_HINTS_PATH");
- ld_loadfltr = getenv(LD_ "LOADFLTR") != NULL;
- library_path_rpath = getenv(LD_ "LIBRARY_PATH_RPATH");
+ ld_debug = getenv(_LD("DEBUG"));
+ libmap_disable = getenv(_LD("LIBMAP_DISABLE")) != NULL;
+ libmap_override = getenv(_LD("LIBMAP"));
+ ld_library_path = getenv(_LD("LIBRARY_PATH"));
+ ld_library_dirs = getenv(_LD("LIBRARY_PATH_FDS"));
+ ld_preload = getenv(_LD("PRELOAD"));
+ ld_elf_hints_path = getenv(_LD("ELF_HINTS_PATH"));
+ ld_loadfltr = getenv(_LD("LOADFLTR")) != NULL;
+ library_path_rpath = getenv(_LD("LIBRARY_PATH_RPATH"));
if (library_path_rpath != NULL) {
if (library_path_rpath[0] == 'y' ||
library_path_rpath[0] == 'Y' ||
@@ -450,11 +474,11 @@
dangerous_ld_env = libmap_disable || (libmap_override != NULL) ||
(ld_library_path != NULL) || (ld_preload != NULL) ||
(ld_elf_hints_path != NULL) || ld_loadfltr;
- ld_tracing = getenv(LD_ "TRACE_LOADED_OBJECTS");
- ld_utrace = getenv(LD_ "UTRACE");
+ ld_tracing = getenv(_LD("TRACE_LOADED_OBJECTS"));
+ ld_utrace = getenv(_LD("UTRACE"));
if ((ld_elf_hints_path == NULL) || strlen(ld_elf_hints_path) == 0)
- ld_elf_hints_path = _PATH_ELF_HINTS;
+ ld_elf_hints_path = ld_path_elf_hints;
if (ld_debug != NULL && *ld_debug != '\0')
debug = 1;
@@ -588,7 +612,7 @@
exit(0);
}
- if (getenv(LD_ "DUMP_REL_PRE") != NULL) {
+ if (getenv(_LD("DUMP_REL_PRE")) != NULL) {
dump_relocations(obj_main);
exit (0);
}
@@ -616,7 +640,7 @@
if (do_copy_relocations(obj_main) == -1)
rtld_die();
- if (getenv(LD_ "DUMP_REL_POST") != NULL) {
+ if (getenv(_LD("DUMP_REL_POST")) != NULL) {
dump_relocations(obj_main);
exit (0);
}
@@ -1511,7 +1535,7 @@
(pathname = search_library_path(name, refobj->rpath)) != NULL) ||
(pathname = search_library_pathfds(name, ld_library_dirs, fdp)) != NULL ||
(pathname = search_library_path(name, gethints(false))) != NULL ||
- (pathname = search_library_path(name, STANDARD_LIBRARY_PATH)) != NULL)
+ (pathname = search_library_path(name, ld_standard_library_path)) != NULL)
return (pathname);
} else {
nodeflib = objgiven ? refobj->z_nodeflib : false;
@@ -1525,7 +1549,7 @@
(pathname = search_library_pathfds(name, ld_library_dirs, fdp)) != NULL ||
(pathname = search_library_path(name, gethints(nodeflib))) != NULL ||
(objgiven && !nodeflib &&
- (pathname = search_library_path(name, STANDARD_LIBRARY_PATH)) != NULL))
+ (pathname = search_library_path(name, ld_standard_library_path)) != NULL))
return (pathname);
}
@@ -1695,7 +1719,7 @@
hargs.request = RTLD_DI_SERINFOSIZE;
hargs.serinfo = &hmeta;
- path_enumerate(STANDARD_LIBRARY_PATH, fill_search_info, &sargs);
+ path_enumerate(ld_standard_library_path, fill_search_info, &sargs);
path_enumerate(p, fill_search_info, &hargs);
SLPinfo = xmalloc(smeta.dls_size);
@@ -1714,7 +1738,7 @@
hargs.serpath = &hintinfo->dls_serpath[0];
hargs.strspace = (char *)&hintinfo->dls_serpath[hmeta.dls_cnt];
- path_enumerate(STANDARD_LIBRARY_PATH, fill_search_info, &sargs);
+ path_enumerate(ld_standard_library_path, fill_search_info, &sargs);
path_enumerate(p, fill_search_info, &hargs);
/*
@@ -1892,7 +1916,7 @@
digest_dynamic2(&obj_rtld, dyn_rpath, dyn_soname, dyn_runpath);
/* Replace the path with a dynamically allocated copy. */
- obj_rtld.path = xstrdup(PATH_RTLD);
+ obj_rtld.path = xstrdup(ld_path_rtld);
r_debug.r_brk = r_debug_state;
r_debug.r_state = RT_CONSISTENT;
@@ -3506,7 +3530,7 @@
path_enumerate(obj->runpath, fill_search_info, &args);
path_enumerate(gethints(obj->z_nodeflib), fill_search_info, &args);
if (!obj->z_nodeflib)
- path_enumerate(STANDARD_LIBRARY_PATH, fill_search_info, &args);
+ path_enumerate(ld_standard_library_path, fill_search_info, &args);
if (request == RTLD_DI_SERINFOSIZE) {
@@ -3544,7 +3568,7 @@
args.flags = LA_SER_DEFAULT;
if (!obj->z_nodeflib &&
- path_enumerate(STANDARD_LIBRARY_PATH, fill_search_info, &args) != NULL)
+ path_enumerate(ld_standard_library_path, fill_search_info, &args) != NULL)
return (-1);
return (0);
}
@@ -4168,16 +4192,16 @@
char *fmt1, *fmt2, *fmt, *main_local, *list_containers;
int c;
- if ((main_local = getenv(LD_ "TRACE_LOADED_OBJECTS_PROGNAME")) == NULL)
+ if ((main_local = getenv(_LD("TRACE_LOADED_OBJECTS_PROGNAME"))) == NULL)
main_local = "";
- if ((fmt1 = getenv(LD_ "TRACE_LOADED_OBJECTS_FMT1")) == NULL)
+ if ((fmt1 = getenv(_LD("TRACE_LOADED_OBJECTS_FMT1"))) == NULL)
fmt1 = "\t%o => %p (%x)\n";
- if ((fmt2 = getenv(LD_ "TRACE_LOADED_OBJECTS_FMT2")) == NULL)
+ if ((fmt2 = getenv(_LD("TRACE_LOADED_OBJECTS_FMT2"))) == NULL)
fmt2 = "\t%o (%x)\n";
- list_containers = getenv(LD_ "TRACE_LOADED_OBJECTS_ALL");
+ list_containers = getenv(_LD("TRACE_LOADED_OBJECTS_ALL"));
for (; obj; obj = obj->next) {
Needed_Entry *needed;
Index: libexec/rtld-elf/sparc64/rtld_machdep.h
===================================================================
--- libexec/rtld-elf/sparc64/rtld_machdep.h
+++ libexec/rtld-elf/sparc64/rtld_machdep.h
@@ -71,4 +71,6 @@
#define RTLD_DEFAULT_STACK_PF_EXEC 0
#define RTLD_DEFAULT_STACK_EXEC 0
+#define md_abi_variant_hook(x)
+
#endif
Index: sys/arm/arm/exception.S
===================================================================
--- sys/arm/arm/exception.S
+++ sys/arm/arm/exception.S
@@ -49,7 +49,6 @@
#include "assym.s"
#include "opt_kdtrace.h"
-#include <machine/acle-compat.h>
#include <machine/asm.h>
#include <machine/armreg.h>
#include <machine/asmacros.h>
@@ -81,7 +80,7 @@
* NOTE: r13 and r14 are stored separately as a work around for the
* SA110 rev 2 STM^ bug
*/
-#if __ARM_ARCH < 6
+#ifdef ARM_TP_ADDRESS
#define PUSHFRAME \
sub sp, sp, #4; /* Align the stack */ \
str lr, [sp, #-4]!; /* Push the return address */ \
@@ -115,7 +114,7 @@
* Since the current mode is used, the SVC lr field is ignored.
*/
-#if __ARM_ARCH < 6
+#ifdef ARM_TP_ADDRESS
#define PULLFRAME \
ldr r0, [sp], #4; /* Get the SPSR from stack */ \
msr spsr_fsxc, r0; \
@@ -146,7 +145,7 @@
* NOTE: r13 and r14 are stored separately as a work around for the
* SA110 rev 2 STM^ bug
*/
-#if __ARM_ARCH < 6
+#ifdef ARM_TP_ADDRESS
#define PUSHFRAMEINSVC \
stmdb sp, {r0-r3}; /* Save 4 registers */ \
mov r0, lr; /* Save xxx32 r14 */ \
@@ -219,7 +218,7 @@
* exit.
*/
-#if __ARM_ARCH < 6
+#ifdef ARM_TP_ADDRESS
#define PULLFRAMEFROMSVCANDEXIT \
ldr r0, [sp], #4; /* Get the SPSR from stack */ \
msr spsr_fsxc, r0; /* restore SPSR */ \
@@ -469,4 +468,9 @@
*/
.global _C_LABEL(fiq_nullhandler_code), _C_LABEL(fiq_nullhandler_size)
-_C_LABEL(fiq_nullhandler_c
\ No newline at end of file
+_C_LABEL(fiq_nullhandler_code):
+ .word .fiqv
+_C_LABEL(fiq_nullhandler_size):
+ .word 4
+
+

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