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authorUlrich Drepper <drepper@redhat.com>1998-09-20 09:48:01 +0000
committerUlrich Drepper <drepper@redhat.com>1998-09-20 09:48:01 +0000
commita0780919b48b7b966822f3513edd6cf131ad3d8d (patch)
tree4fbadfbb73b113800da2fd1b21ac45ce1fe41862 /elf
parentc53a89d434f518f99d5168e9c8693ac63777042a (diff)
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Update.
1998-09-20 09:37 Ulrich Drepper <drepper@cygnus.com> * elf/Versions [GLIBC_2.1] (libc): Add __fpu_control. * elf/elf.h: Add AT_FPUCW. * elf/Makefile (dl-routines): Add fpu_control. (elide-routines.os): Add fpu_control. (rtld-routines): Add fpu_control. * math/Makefile (aux): Remove fpu_control. * sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Handle AT_FPUCW. (_dl_show_auxv): Likewise. * sysdeps/unix/sysv/linux/init-first.c (init): Use __setfpucw only if different from OS default. * stdio-common/tstscanf.c: Add test case for (nil).
Diffstat (limited to 'elf')
-rw-r--r--elf/Makefile8
-rw-r--r--elf/Versions2
-rw-r--r--elf/elf.h4
3 files changed, 10 insertions, 4 deletions
diff --git a/elf/Makefile b/elf/Makefile
index ddd9d22..6da5e8c 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -28,13 +28,15 @@ routines = $(dl-routines) dl-open dl-close dl-symbol dl-support \
# profiled libraries.
dl-routines = $(addprefix dl-,load cache lookup object reloc deps \
runtime error init fini debug misc \
- version profile)
+ version profile) \
+ fpu_control
# But they are absent from the shared libc, because that code is in ld.so.
-elide-routines.os = $(dl-routines) dl-support enbl-secure
+elide-routines.os = $(dl-routines) dl-support enbl-secure fpu_control
# ld.so uses those routines, plus some special stuff for being the program
# interpreter and operating independent of libc.
-rtld-routines := rtld $(dl-routines) dl-sysdep dl-environ dl-minimal
+rtld-routines := rtld $(dl-routines) dl-sysdep dl-environ dl-minimal \
+ fpu_control
distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \
dl-hash.h soinit.c sofini.c ldd.bash.in eval.c \
genrtldtbl.awk atomicity.h dl-procinfo.h ldsodefs.h \
diff --git a/elf/Versions b/elf/Versions
index 29795ce..2c93632 100644
--- a/elf/Versions
+++ b/elf/Versions
@@ -19,7 +19,7 @@ libc {
GLIBC_2.1 {
# global variables
_dl_profile; _dl_profile_map; _dl_profile_output; _dl_start_profile;
- _dl_loaded; _dl_main_searchlist;
+ _dl_loaded; _dl_main_searchlist; __fpu_control;
# functions used in other libraries
_dl_mcount; _dl_mcount_wrapper; _dl_mcount_wrapper_check; _dl_unload_cache;
diff --git a/elf/elf.h b/elf/elf.h
index a797cb5..7a53c77 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -777,6 +777,10 @@ typedef struct
#define AT_HWCAP 16 /* Machine dependent hints about
processor capabilities. */
+/* This entry gives some information about the FPU initialization
+ performed by the kernel. */
+#define AT_FPUCW 17 /* Used FPU control word. */
+
/* Note section contents. Each entry in the note section begins with
a header of a fixed form. */