After
commit 9d7a3741c9
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Dec 15 16:59:33 2017 -0800
Add --enable-static-pie configure option to build static PIE [BZ #19574]
and
commit 00c714df39
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Dec 18 12:24:26 2017 -0800
Pass -no-pie to GCC only if GCC defaults to PIE [BZ #22614]
$(no-pie-ldflag) is no longer effective since no-pie-ldflag is defined
to -no-pie only if GCC defaults to PIE. When --enable-static-pie is
used to configure glibc build and GCC doesn't default to PIE. no-pie-ldflag
is undefined and these tests:
elf/Makefile:LDFLAGS-tst-dlopen-aout = $(no-pie-ldflag)
elf/Makefile:LDFLAGS-tst-prelink = $(no-pie-ldflag)
elf/Makefile:LDFLAGS-tst-main1 = $(no-pie-ldflag)
gmon/Makefile:LDFLAGS-tst-gmon := $(no-pie-ldflag)
may fail to link. This patch replaces "-pie" with
$(if $($(@F)-no-pie),$(no-pie-ldflag),-pie)
and repleces
LDFLAGS-* = $(no-pie-ldflag)
with
tst-*-no-pie = yes
so that tst-dlopen-aout, tst-prelink, tst-main1 and tst-gmon are always
built as non-PIE, with and without --enable-static-pie, regardless if
GCC defaults to PIE or non-PIE.
Tested with build-many-glibcs.py without --enable-static-pie as well as
with --enable-static-pie for x86_64, x32 and i686.
[BZ #22630]
* Makeconfig (link-pie-before-libc): Replace -pie with
$(if $($(@F)-no-pie),$(no-pie-ldflag),-pie).
* elf/Makefile (LDFLAGS-tst-dlopen-aout): Removed.
(tst-dlopen-aout-no-pie): New.
(LDFLAGS-tst-prelink): Removed.
(tst-prelink-no-pie): New.
(LDFLAGS-tst-main1): Removed.
(tst-main1-no-pie): New.
* gmon/Makefile (LDFLAGS-tst-gmon): Removed.
(tst-gmon-no-pie): New.
Static PIE extends address space layout randomization to static
executables. It provides additional security hardening benefits at
the cost of some memory and performance.
Dynamic linker, ld.so, is a standalone program which can be loaded at
any address. This patch adds a configure option, --enable-static-pie,
to embed the part of ld.so in static executable to create static position
independent executable (static PIE). A static PIE is similar to static
executable, but can be loaded at any address without help from a dynamic
linker. When --enable-static-pie is used to configure glibc, libc.a is
built as PIE and all static executables, including tests, are built as
static PIE. The resulting libc.a can be used together with GCC 8 or
above to build static PIE with the compiler option, -static-pie. But
GCC 8 isn't required to build glibc with --enable-static-pie. Only GCC
with PIE support is needed. When an older GCC is used to build glibc
with --enable-static-pie, proper input files are passed to linker to
create static executables as static PIE, together with "-z text" to
prevent dynamic relocations in read-only segments, which are not allowed
in static PIE.
The following changes are made for static PIE:
1. Add a new function, _dl_relocate_static_pie, to:
a. Get the run-time load address.
b. Read the dynamic section.
c. Perform dynamic relocations.
Dynamic linker also performs these steps. But static PIE doesn't load
any shared objects.
2. Call _dl_relocate_static_pie at entrance of LIBC_START_MAIN in
libc.a. crt1.o, which is used to create dynamic and non-PIE static
executables, is updated to include a dummy _dl_relocate_static_pie.
rcrt1.o is added to create static PIE, which will link in the real
_dl_relocate_static_pie. grcrt1.o is also added to create static PIE
with -pg. GCC 8 has been updated to support rcrt1.o and grcrt1.o for
static PIE.
Static PIE can work on all architectures which support PIE, provided:
1. Target must support accessing of local functions without dynamic
relocations, which is needed in start.S to call __libc_start_main with
function addresses of __libc_csu_init, __libc_csu_fini and main. All
functions in static PIE are local functions. If PIE start.S can't reach
main () defined in a shared object, the code sequence:
pass address of local_main to __libc_start_main
...
local_main:
tail call to main via PLT
can be used.
2. start.S is updated to check PIC instead SHARED for PIC code path and
avoid dynamic relocation, when PIC is defined and SHARED isn't defined,
to support static PIE.
3. All assembly codes are updated check PIC instead SHARED for PIC code
path to avoid dynamic relocations in read-only sections.
4. All assembly codes are updated check SHARED instead PIC for static
symbol name.
5. elf_machine_load_address in dl-machine.h are updated to support static
PIE.
6. __brk works without TLS nor dynamic relocations in read-only section
so that it can be used by __libc_setup_tls to initializes TLS in static
PIE.
NB: When glibc is built with GCC defaulted to PIE, libc.a is compiled
with -fPIE, regardless if --enable-static-pie is used to configure glibc.
When glibc is configured with --enable-static-pie, libc.a is compiled
with -fPIE, regardless whether GCC defaults to PIE or not. The same
libc.a can be used to build both static executable and static PIE.
There is no need for separate PIE copy of libc.a.
On x86-64, the normal static sln:
text data bss dec hex filename
625425 8284 5456 639165 9c0bd elf/sln
the static PIE sln:
text data bss dec hex filename
657626 20636 5392 683654 a6e86 elf/sln
The code size is increased by 5% and the binary size is increased by 7%.
Linker requirements to build glibc with --enable-static-pie:
1. Linker supports --no-dynamic-linker to remove PT_INTERP segment from
static PIE.
2. Linker can create working static PIE. The x86-64 linker needs the
fix for
https://sourceware.org/bugzilla/show_bug.cgi?id=21782
The i386 linker needs to be able to convert "movl main@GOT(%ebx), %eax"
to "leal main@GOTOFF(%ebx), %eax" if main is defined locally.
Binutils 2.29 or above are OK for i686 and x86-64. But linker status for
other targets need to be verified.
3. Linker should resolve undefined weak symbols to 0 in static PIE:
https://sourceware.org/bugzilla/show_bug.cgi?id=22269
4. Many ELF backend linkers incorrectly check bfd_link_pic for TLS
relocations, which should check bfd_link_executable instead:
https://sourceware.org/bugzilla/show_bug.cgi?id=22263
Tested on aarch64, i686 and x86-64.
Using GCC 7 and binutils master branch, build-many-glibcs.py with
--enable-static-pie with all patches for static PIE applied have the
following build successes:
PASS: glibcs-aarch64_be-linux-gnu build
PASS: glibcs-aarch64-linux-gnu build
PASS: glibcs-armeb-linux-gnueabi-be8 build
PASS: glibcs-armeb-linux-gnueabi build
PASS: glibcs-armeb-linux-gnueabihf-be8 build
PASS: glibcs-armeb-linux-gnueabihf build
PASS: glibcs-arm-linux-gnueabi build
PASS: glibcs-arm-linux-gnueabihf build
PASS: glibcs-arm-linux-gnueabihf-v7a build
PASS: glibcs-arm-linux-gnueabihf-v7a-disable-multi-arch build
PASS: glibcs-m68k-linux-gnu build
PASS: glibcs-microblazeel-linux-gnu build
PASS: glibcs-microblaze-linux-gnu build
PASS: glibcs-mips64el-linux-gnu-n32 build
PASS: glibcs-mips64el-linux-gnu-n32-nan2008 build
PASS: glibcs-mips64el-linux-gnu-n32-nan2008-soft build
PASS: glibcs-mips64el-linux-gnu-n32-soft build
PASS: glibcs-mips64el-linux-gnu-n64 build
PASS: glibcs-mips64el-linux-gnu-n64-nan2008 build
PASS: glibcs-mips64el-linux-gnu-n64-nan2008-soft build
PASS: glibcs-mips64el-linux-gnu-n64-soft build
PASS: glibcs-mips64-linux-gnu-n32 build
PASS: glibcs-mips64-linux-gnu-n32-nan2008 build
PASS: glibcs-mips64-linux-gnu-n32-nan2008-soft build
PASS: glibcs-mips64-linux-gnu-n32-soft build
PASS: glibcs-mips64-linux-gnu-n64 build
PASS: glibcs-mips64-linux-gnu-n64-nan2008 build
PASS: glibcs-mips64-linux-gnu-n64-nan2008-soft build
PASS: glibcs-mips64-linux-gnu-n64-soft build
PASS: glibcs-mipsel-linux-gnu build
PASS: glibcs-mipsel-linux-gnu-nan2008 build
PASS: glibcs-mipsel-linux-gnu-nan2008-soft build
PASS: glibcs-mipsel-linux-gnu-soft build
PASS: glibcs-mips-linux-gnu build
PASS: glibcs-mips-linux-gnu-nan2008 build
PASS: glibcs-mips-linux-gnu-nan2008-soft build
PASS: glibcs-mips-linux-gnu-soft build
PASS: glibcs-nios2-linux-gnu build
PASS: glibcs-powerpc64le-linux-gnu build
PASS: glibcs-powerpc64-linux-gnu build
PASS: glibcs-tilegxbe-linux-gnu-32 build
PASS: glibcs-tilegxbe-linux-gnu build
PASS: glibcs-tilegx-linux-gnu-32 build
PASS: glibcs-tilegx-linux-gnu build
PASS: glibcs-tilepro-linux-gnu build
and the following build failures:
FAIL: glibcs-alpha-linux-gnu build
elf/sln is failed to link due to:
assertion fail bfd/elf64-alpha.c:4125
This is caused by linker bug and/or non-PIC code in PIE libc.a.
FAIL: glibcs-hppa-linux-gnu build
elf/sln is failed to link due to:
collect2: fatal error: ld terminated with signal 11 [Segmentation fault]
https://sourceware.org/bugzilla/show_bug.cgi?id=22537
FAIL: glibcs-ia64-linux-gnu build
elf/sln is failed to link due to:
collect2: fatal error: ld terminated with signal 11 [Segmentation fault]
FAIL: glibcs-powerpc-linux-gnu build
FAIL: glibcs-powerpc-linux-gnu-soft build
FAIL: glibcs-powerpc-linux-gnuspe build
FAIL: glibcs-powerpc-linux-gnuspe-e500v1 build
elf/sln is failed to link due to:
ld: read-only segment has dynamic relocations.
This is caused by linker bug and/or non-PIC code in PIE libc.a. See:
https://sourceware.org/bugzilla/show_bug.cgi?id=22264
FAIL: glibcs-powerpc-linux-gnu-power4 build
elf/sln is failed to link due to:
findlocale.c:96:(.text+0x22c): @local call to ifunc memchr
This is caused by linker bug and/or non-PIC code in PIE libc.a.
FAIL: glibcs-s390-linux-gnu build
elf/sln is failed to link due to:
collect2: fatal error: ld terminated with signal 11 [Segmentation fault], core dumped
assertion fail bfd/elflink.c:14299
This is caused by linker bug and/or non-PIC code in PIE libc.a.
FAIL: glibcs-sh3eb-linux-gnu build
FAIL: glibcs-sh3-linux-gnu build
FAIL: glibcs-sh4eb-linux-gnu build
FAIL: glibcs-sh4eb-linux-gnu-soft build
FAIL: glibcs-sh4-linux-gnu build
FAIL: glibcs-sh4-linux-gnu-soft build
elf/sln is failed to link due to:
ld: read-only segment has dynamic relocations.
This is caused by linker bug and/or non-PIC code in PIE libc.a. See:
https://sourceware.org/bugzilla/show_bug.cgi?id=22263
Also TLS code sequence in SH assembly syscalls in glibc doesn't match TLS
code sequence expected by ld:
https://sourceware.org/bugzilla/show_bug.cgi?id=22270
FAIL: glibcs-sparc64-linux-gnu build
FAIL: glibcs-sparcv9-linux-gnu build
FAIL: glibcs-tilegxbe-linux-gnu build
FAIL: glibcs-tilegxbe-linux-gnu-32 build
FAIL: glibcs-tilegx-linux-gnu build
FAIL: glibcs-tilegx-linux-gnu-32 build
FAIL: glibcs-tilepro-linux-gnu build
elf/sln is failed to link due to:
ld: read-only segment has dynamic relocations.
This is caused by linker bug and/or non-PIC code in PIE libc.a. See:
https://sourceware.org/bugzilla/show_bug.cgi?id=22263
[BZ #19574]
* INSTALL: Regenerated.
* Makeconfig (real-static-start-installed-name): New.
(pic-default): Updated for --enable-static-pie.
(pie-default): New for --enable-static-pie.
(default-pie-ldflag): Likewise.
(+link-static-before-libc): Replace $(DEFAULT-LDFLAGS-$(@F))
with $(if $($(@F)-no-pie),$(no-pie-ldflag),$(default-pie-ldflag)).
Replace $(static-start-installed-name) with
$(real-static-start-installed-name).
(+prectorT): Updated for --enable-static-pie.
(+postctorT): Likewise.
(CFLAGS-.o): Add $(pie-default).
(CFLAGS-.op): Likewise.
* NEWS: Mention --enable-static-pie.
* config.h.in (ENABLE_STATIC_PIE): New.
* configure.ac (--enable-static-pie): New configure option.
(have-no-dynamic-linker): New LIBC_CONFIG_VAR.
(have-static-pie): Likewise.
Enable static PIE if linker supports --no-dynamic-linker.
(ENABLE_STATIC_PIE): New AC_DEFINE.
(enable-static-pie): New LIBC_CONFIG_VAR.
* configure: Regenerated.
* csu/Makefile (omit-deps): Add r$(start-installed-name) and
gr$(start-installed-name) for --enable-static-pie.
(extra-objs): Likewise.
(install-lib): Likewise.
(extra-objs): Add static-reloc.o and static-reloc.os
($(objpfx)$(start-installed-name)): Also depend on
$(objpfx)static-reloc.o.
($(objpfx)r$(start-installed-name)): New.
($(objpfx)g$(start-installed-name)): Also depend on
$(objpfx)static-reloc.os.
($(objpfx)gr$(start-installed-name)): New.
* csu/libc-start.c (LIBC_START_MAIN): Call _dl_relocate_static_pie
in libc.a.
* csu/libc-tls.c (__libc_setup_tls): Add main_map->l_addr to
initimage.
* csu/static-reloc.c: New file.
* elf/Makefile (routines): Add dl-reloc-static-pie.
(elide-routines.os): Likewise.
(DEFAULT-LDFLAGS-tst-tls1-static-non-pie): Removed.
(tst-tls1-static-non-pie-no-pie): New.
* elf/dl-reloc-static-pie.c: New file.
* elf/dl-support.c (_dl_get_dl_main_map): New function.
* elf/dynamic-link.h (ELF_DURING_STARTUP): Also check
STATIC_PIE_BOOTSTRAP.
* elf/get-dynamic-info.h (elf_get_dynamic_info): Likewise.
* gmon/Makefile (tests): Add tst-gmon-static-pie.
(tests-static): Likewise.
(DEFAULT-LDFLAGS-tst-gmon-static): Removed.
(tst-gmon-static-no-pie): New.
(CFLAGS-tst-gmon-static-pie.c): Likewise.
(CRT-tst-gmon-static-pie): Likewise.
(tst-gmon-static-pie-ENV): Likewise.
(tests-special): Likewise.
($(objpfx)tst-gmon-static-pie.out): Likewise.
(clean-tst-gmon-static-pie-data): Likewise.
($(objpfx)tst-gmon-static-pie-gprof.out): Likewise.
* gmon/tst-gmon-static-pie.c: New file.
* manual/install.texi: Document --enable-static-pie.
* sysdeps/generic/ldsodefs.h (_dl_relocate_static_pie): New.
(_dl_get_dl_main_map): Likewise.
* sysdeps/i386/configure.ac: Check if linker supports static PIE.
* sysdeps/x86_64/configure.ac: Likewise.
* sysdeps/i386/configure: Regenerated.
* sysdeps/x86_64/configure: Likewise.
* sysdeps/mips/Makefile (ASFLAGS-.o): Add $(pie-default).
(ASFLAGS-.op): Likewise.
The function, main, is added to profiling output of static executable
which must link against gcrt1.o.
* Makeconfig (+link-static-before-libc): Use the first of
$(CRT-$(@F)) and $(csu-objpfx)$(static-start-installed-name).
* gmon/Makefile (tests): Add tst-gmon-static.
(tests-static): Likewise.
(CFLAGS-tst-gmon-static.c): New.
(CRT-tst-gmon-static): Likewise.
(DEFAULT-LDFLAGS-tst-gmon-static): Likewise.
(tst-gmon-static-ENV): Likewise.
(tests-special): Likewise.
($(objpfx)tst-gmon-static.out): Likewise.
(clean-tst-gmon-static-data): Likewise.
($(objpfx)tst-gmon-static-gprof.out): Likewise.
* gmon/tst-gmon-static-gprof.sh: New file.
* gmon/tst-gmon-static.c: Likewise.
Since PIE can be loaded at any address, we need to subtract load address
from PCs.
[BZ #22284]
* gmon/Makefile [$(have-fpie)$(build-shared) == yesyes] (tests,
tests-pie): Add tst-gmon-pie.
(CFLAGS-tst-gmon-pie.c): New.
(CRT-tst-gmon-pie): Likewise.
(tst-gmon-pie-ENV): Likewise.
[$(have-fpie)$(build-shared) == yesyes] (tests-special): Likewise.
($(objpfx)tst-gmon-pie.out): Likewise.
(clean-tst-gmon-pie-data): Likewise.
($(objpfx)tst-gmon-pie-gprof.out): Likewise.
* gmon/gmon.c [PIC]: Include <link.h>.
[PIC] (callback): New function.
(write_hist): Add an argument for load address. Subtract load
address from PCs.
(write_call_graph): Likewise.
(write_gmon): Call __dl_iterate_phdr to get load address, pass
it to write_hist and write_call_graph.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
If glibc is built with -fomit-frame-pointer to undo the effect of
configuring GCC with --enable-frame-pointer, using -pg by itself results
in a build failure:
gcc: error: -pg and -fomit-frame-pointer are incompatible
__bb_init_func and __bb_exit_func have been removed from GCC 3.3 in
2002 by
https://gcc.gnu.org/ml/gcc-patches/2002-09/msg00499.html
which also recommended that they should also be removed from glibc. These
functions exist only in libc.a and are used for gcov from versions of GCC
older than GCC 3.3.
[BZ #21974]
* gmon/Makefile (routines): Remove bb_init_func and
bb_exit_func.
(elide-routines.os): Removed.
* include/sys/gmon.h (__bb): Likewise.
(__bb_init_func): Likewise.
(__bb_exit_func): Likewise.
No need to compile x86_64 _mcount.S with -pg. We can just copy the
normal static object.
* gmon/Makefile (noprof): Add $(sysdep_noprof).
* sysdeps/x86_64/Makefile (sysdep_noprof): Add _mcount.
In <https://sourceware.org/ml/libc-alpha/2014-01/msg00196.html> I
noted it was necessary to add includes of Makeconfig early in various
subdirectory makefiles for the tests-special variable settings added
by that patch to be conditional on configuration information. No-one
commented on the general question there of whether Makeconfig should
always be included immediately after the definition of subdir.
This patch implements that early inclusion of Makeconfig in each
directory (which is a lot easier than consistent placement of includes
of Rules). Includes are added if needed, or moved up if already
present. Subdirectory "all:" targets are removed, since Makeconfig
provides one.
There is potential for further cleanups I haven't done. Rules and
Makerules have code such as
ifneq "$(findstring env,$(origin headers))" ""
headers :=
endif
to override to empty any value of various variables that came from the
environment. I think there is a case for Makeconfig setting all the
subdirectory variables (other than subdir) to empty to ensure no
outside value is going to take effect if a subdirectory fails to
define a variable. (A list of such variables, possibly out of date
and incomplete, is in manual/maint.texi.) Rules and Makerules would
give errors if Makeconfig hadn't already been included, instead of
including it themselves. The special code to override values coming
from the environment would then be obsolete and could be removed.
Tested x86_64, including that installed binaries are identical before
and after the patch.
* argp/Makefile: Include Makeconfig immediately after defining
subdir.
* assert/Makefile: Likewise.
* benchtests/Makefile: Likewise.
* catgets/Makefile: Likewise.
* conform/Makefile: Likewise.
* crypt/Makefile: Likewise.
* csu/Makefile: Likewise.
(all): Remove target.
* ctype/Makefile: Include Makeconfig immediately after defining
subdir.
* debug/Makefile: Likewise.
* dirent/Makefile: Likewise.
* dlfcn/Makefile: Likewise.
* gmon/Makefile: Likewise.
* gnulib/Makefile: Likewise.
* grp/Makefile: Likewise.
* gshadow/Makefile: Likewise.
* hesiod/Makefile: Likewise.
* hurd/Makefile: Likewise.
(all): Remove target.
* iconvdata/Makefile: Include Makeconfig immediately after
defining subdir.
* inet/Makefile: Likewise.
* intl/Makefile: Likewise.
* io/Makefile: Likewise.
* libio/Makefile: Likewise.
(all): Remove target.
* locale/Makefile: Include Makeconfig immediately after defining
subdir.
* login/Makefile: Likewise.
* mach/Makefile: Likewise.
(all): Remove target.
* malloc/Makefile: Include Makeconfig immediately after defining
subdir.
(all): Remove target.
* manual/Makefile: Include Makeconfig immediately after defining
subdir.
* math/Makefile: Likewise.
* misc/Makefile: Likewise.
* nis/Makefile: Likewise.
* nss/Makefile: Likewise.
* po/Makefile: Likewise.
(all): Remove target.
* posix/Makefile: Include Makeconfig immediately after defining
subdir.
* pwd/Makefile: Likewise.
* resolv/Makefile: Likewise.
* resource/Makefile: Likewise.
* rt/Makefile: Likewise.
* setjmp/Makefile: Likewise.
* shadow/Makefile: Likewise.
* signal/Makefile: Likewise.
* socket/Makefile: Likewise.
* soft-fp/Makefile: Likewise.
* stdio-common/Makefile: Likewise.
* stdlib/Makefile: Likewise.
* streams/Makefile: Likewise.
* string/Makefile: Likewise.
* sunrpc/Makefile: Likewise.
(all): Remove target.
* sysvipc/Makefile: Include Makeconfig immediately after defining
subdir.
* termios/Makefile: Likewise.
* time/Makefile: Likewise.
* timezone/Makefile: Likewise.
(all): Remove target.
* wcsmbs/Makefile: Include Makeconfig immediately after defining
subdir.
* wctype/Makefile: Likewise.
libidn/ChangeLog:
* Makefile: Include Makeconfig immediately after defining subdir.
localedata/ChangeLog:
* Makefile: Include Makeconfig immediately after defining subdir.
(all): Remove target.
nptl/ChangeLog:
* Makefile: Include Makeconfig immediately after defining subdir.
nptl_db/ChangeLog:
* Makefile: Include Makeconfig immediately after defining subdir.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
Mon Jan 20 03:02:50 1997 Ulrich Drepper <drepper@cygnus.com>
* Make-dist: Update and reformat copyright.
* Makeconfig: Likewise.
* assert/Makefile: Likewise.
* bare/Makefile: Likewise.
* ctype/Makefile: Likewise.
* dirent/Makefile: Likewise.
* gmon/Makefile: Likewise.
* gnulib/Makefile: Likewise.
* grp/Makefile: Likewise.
* hurd/Makefile: Likewise.
* intl/Makefile: Likewise.
* mach/Makefile: Likewise.
* malloc/Makefile: Likewise.
* manual/Makefile: Likewise.
* math/Makefile: Likewise.
* po/Makefile: Likewise.
* pwd/Makefile: Likewise.
* resource/Makefile: Likewise.
* setjmp/Makefile: Likewise.
* socket/Makefile: Likewise.
* string/Makefile: Likewise.
* sunrpc/Makefile: Likewise.
* sysdeps/alpha/Makefile: Likewise.
* sysdeps/gnu/Makefile: Likewise.
* sysdeps/m68k/fpu/switch/Makefile: Likewise.
* sysdeps/m68k/fpu/switch/68881-sw.h: Likewise.
* sysdeps/m68k/fpu/switch/switch.c: Likewise.
* sysdeps/mach/Makefile: Likewise.
* sysdeps/hurd/Makefile: Likewise.
* sysdeps/sparc/Makefile: Likewise.
* sysdeps/standalone/i960/nindy960/Makefile: Likewise.
* sysdeps/standalone/m68k/m68020/mvme136/Makefile: Likewise.
* sysdeps/unix/common/Makefile: Likewise.
* sysdeps/unix/sysv/Makefile: Likewise.
* sysdeps/unix/sysv/irix4/Makefile: Likewise.
* sysdeps/unix/sysv/sco3.2/Makefile: Likewise.
* sysdeps/unix/sysv/sysv4/Makefile: Likewise.
* sysdeps/vax/Makefile: Likewise.
* sysvipc/Makefile: Likewise.
* wcsmbs/Makefile: Likewise.
* wctype/Makefile: Likewise.
* elf/rtld.c (dl_main): Objects in LD_PRELOAD environment variable
are separated according to Sun docs by white space not colon.
* locale/C-time.c (_nl_C_LC_TIME): Use empty string to initialize
fields which are not defined for the C locale.
* sysdeps/m68k/fpu/switch/Makefile: Don't use ansidecl.h in constructed
files.
* sysdeps/m68k/fpu/switch/68881-sw.h: Likewise.
* sysdeps/m68k/fpu/switch/switch.c: Likewise.
Sun Jan 19 19:43:31 1997 Andreas Jaeger <aj@arthur.pfalz.de>
* time/strptime.c: Provide prototype for strptime_internal.
Sun Jan 19 23:46:27 1997 Ulrich Drepper <drepper@cygnus.com>
* glibcbug.in: We don't guarantee confidential handling. Set
field to always contain `no'.
Sun Jan 19 21:28:01 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
* intl/explodename.c: Include sys/types.h.
* intl/l10nflist.c: Likewise.
Sat Jan 18 22:15:26 1997 Richard Henderson <rth@tamu.edu>
* config.make.in (install_root): New variable to make it easy to
install glibc somewhere other than /.
* shlib-versions: alpha-*-linux-* libc=6.1.
Since sigset_t no longer fits in a register, we can't pass in the
thread's initial mask so easily. Take this opportunity to simplify
the clone implementation by only accepting a single void* argument.
* sysdeps/unix/sysv/linux/alpha/clone.S: Only take one argument.
* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
* sysdeps/unix/sysv/linux/m68k/clone.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/clone.S: Likewise.
* sysdeps/unix/sysv/linux/schedbits.h: Update clone prototypes.
* sysdeps/unix/sysv/linux/alpha/ioctl-types.h: Remove.
Default Linux version should be sufficient.
* sysdeps/unix/sysv/linux/alpha/sigprocmask.c: The osf_sigprocmask
system call wants the sigset dereferenced.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Add entries for
__syscall_ustat and __syscall_xmknod.
* sysdeps/unix/sysv/linux/alpha/xmknod.c: Include sys/sysmacros.h.
* sysdeps/unix/sysv/linux/sigset.h: Use longs instead of ints.
* sysdeps/unix/sysv/linux/tcsetattr.c: Fix pointer dereferences.
* sysdeps/unix/sysv/linux/alpha/sigsuspend.c: Add comment about
dependency to kernel type.
* sysdeps/unix/sysv/linux/alpha/termbits.h: Correct comment.
Thu Dec 19 23:28:33 1996 Ulrich Drepper <drepper@cygnus.com>
* resolv/resolv.h: Update from BIND 4.9.5-P1.
* resolv/res_comp.c: Likewise.
* resolv/res_debug.c: Likewise.
* resolv/Banner: Update version number.
Thu Dec 19 20:58:53 1996 Ulrich Drepper <drepper@cygnus.com>
* elf/dlfcn.h: Add extern "C" wrapper.
* io/utime.h: Don't define NULL since this isn't allowed in POSIX.
* io/sys/stat.h: Declare `lstat' only if __USE_BSD ||
__USE_XOPEN_EXTENDED.
* locale/locale.h: Define NULL.
* math/math.c: Don't include <errno.h> to define math errors.
* stdlib/stdlib.h: Likewise.
* posix/unistd.h: Don't declare environ.
* posix/sys/utsname.h (struct utsname): Declare member domainname
as __domainname is !__USE_GNU.
* signal/signal.h: Declare size_t only if __USE_BSD ||
__USE_XOPEN_EXTENDED.
* stdio/stdio.h: Don't declare cuserid when __USE_POSIX, but
instead when __USE_XOPEN.
* string/string.h: Define strndup only if __USE_GNU.
* sysdeps/unix/sysv/linux/clock.c: New file.
* sysdeps/unix/sysv/linux/timebits.h: Define CLOCKS_PER_SEC as
1000000 per X/Open standard.
* features.h: Add code to recognize _POSIX_C_SOURCE value 199309.
Define __USE_POSIX199309.
* posix/unistd.h: Declare fdatasync only if __USE_POSIX199309.
* time/time.c: Declare nanosleep only if __USE_POSIX199309.
Patches by Rüdiger Helsch <rh@unifix.de>.
* locale/locale.h: Add declaration of newlocale and freelocale.
* new-malloc/Makefile (distibute): Add mtrace.awk.
(dist-routines): Add mcheck and mtrace.
(install-lib, non-lib.a): Define as libmcheck.a.
* new-malloc/malloc.h: Add declaration of __malloc_initialized.
* new-malloc/mcheck.c: New file.
* new-malloc/mcheck.h: New file.
* new-malloc/mtrace.c: New file.
* new-malloc/mtrace.awk: New file.
* posix/unistd.h: Correct prototype for usleep.
* sysdeps/unix/bsd/usleep.c: De-ANSI-declfy. Correct return type.
* sysdeps/unix/sysv/linux/usleep.c: Real implementation based on
nanosleep.
* signal/signal.h: Change protoype of __sigpause to take two
arguments. Remove prototype for sigpause. Add two different
macros named sigpause selected when __USE_BSD or __USE_XOPEN
are defined. This is necessary since the old BSD definition
of theis function collides with the X/Open definition.
* sysdeps/posix/sigpause.c: Change function definition to also
fit X/Open definition.
* sysdeps/libm-i387/e_exp.S: Make sure stack is empty when the
function is left.
* sysdeps/libm-i387/e_expl.S: Likewise.
Patch by HJ Lu.
1996-12-17 Paul Eggert <eggert@twinsun.com>
* many, many files: Spelling corrections.
* catgets/catgetsinfo.h (mmapped):
Renamed from mmaped (in struct catalog_info.status).
* mach/err_kern.sub (err_codes_unix), string/stratcliff.c (main):
Fix spelling in message.
* po/libc.pot: Fix spelling in message for `zic'; this anticipates
a fix in the tzcode distribution.
Wed Dec 18 15:48:02 1996 Ulrich Drepper <drepper@cygnus.com>
* time/strftime.c: Implement ^ flag to cause output be converted
to use upper case characters.
* time/zic.c: Update from ADO tzcode1996n.
Wed Dec 18 14:29:24 1996 Erik Naggum <erik@naggum.no>
* time/strftime.c (add): Don't change global `i' until all is over.
Define NULL is not already defined.
Tue Dec 17 09:49:03 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libio/iovsprintf.c (_IO_vsprintf): Change `&sf' to `&sf._sbf._f'
to avoid the need for a cast.
* libio/iovsscanf.c (_IO_vsscanf): Likewise.
* sunrpc/rpc/xdr.h: Add prototype for xdr_free.
* sysdeps/unix/bsd/pause.c: Moved to sysdeps/unix/common/pause.c.
Mon Mar 4 20:17:28 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/unix/sysv/linux/adjtime.c: Use INT_MAX instead of LONG_MAX.
* sysdeps/unix/sysv/Makefile (sysdep_routines): Don't add s_getdents.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Don't add mount,
umount.
* sysdeps/alpha/__math.h (atan, cabs): New functions.
* sysdeps/unix/sysv/linux/alpha/sigsuspend.S: new file (syscall
expects set-value, not pointer to it).
Sun Feb 25 22:36:10 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/unix/sysv/linux/alpha/profil-counter.h: New file.
* gmon/gmon.c (__bb_head): new variable.
(write_hist, write_call_graph, write_bb_counts): new functions.
(_mcleanup): modified to call above functions instead of directly
writing out gmon.out.
* gmon/sys/gmon.h (struct __bb): New type.
(struct gmonhdr): Type removed.
(struct gmonparam): New member `log_hashfraction'.
(GMONVERSION): Macro removed.
* gmon/sys/gmon_out.h, gmon/bb_exit_func.c,
sysdeps/generic/bb_init_func.c, sysdeps/alpha/bb_init_func.S: new
files.
* gmon/Makefile (headers): Add sys/gmon_out.h.
(routines): Add bb_init_func, bb_exit_func.
* gmon/mcount.c: Avoid integer division.
Wed Feb 21 23:56:41 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/alpha/setjmp.S: switched order in which sp and fp are
passed to match what __sigsetjmp_aux() expects.
Tue Feb 20 11:33:46 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/unix/sysv/linux/alpha/syscalls.list (select, bind,
connect, getpeername, getsockname, listen, recv, recvfrom,
recvmsg, send, sendmsg, sendto, setsockopt, shutdown, socketpair):
added to override same-name assembly file in the parent directory.
* stdlib/stdlib.h: add include of sys/types.h in front of random
etc declarations to ensure int32_t is declared.
* stdlib/random.c, stdlib/random_r.c: replaced "long int" by int32_t
where 32 bit integers are required. Also change LONG_MAX into
0x7fffffff since the intent is to turn off the sign bit in a
32 bit integer.
* time/offtime.c (__offtime): Use Paul Eggert's code to deal
with very large values for "days" (e.g., 64 bit values).
Mon Feb 19 22:22:12 1996 David Mosberger-Tang <davidm@azstarnet.com>
* stdlib/stdlib.h (__random, __random_r, random_r, struct
random_data): use int32_t instead of `long int'.
Sat Feb 17 11:29:29 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/unix/sysv/linux/alpha/ioperm.c: new file.
* sysdeps/alpha/ffs.S: new file.
* sysdeps/alpha/fabs.c: File removed.
* time/tzfile.c (__tzfile_read): counter variable is i, *not*
num_transitions!
* time/offtime.c: make capable of dealing with very large (64 bit)
time_t values. Use old algorithm until a year is reached that
is an integer multiple of 400, then use DAYS_PER_400_YEARS to
do the remainder in a single division.
* sysdeps/generic/ffs.c (ffs): fix variable declarations to
be unsigned int, not unsigned long.
* string/test-ffs.c (main): add test case with all upper bits
set.
* stdlib/tst-strtol.c: add tests cases for machines where
sizeof(long)==8.
* stdlib/testrand.c (main): disallow rand() to return negative
integers.
* stdlib/testmb.c (main): fix format to use %lx instead of %x.
* stdlib/stdlib.h: on 64 bit machines, declare
struct random_data, __random(), __random_r, and random_r to
return "int" instead of "long int".
* stdlib/random_r.c: 64 bit machines use "int" instead of "long
int". Similarly, use INT_MAX instead of LONG_MAX.
* stdlib/random.c: on 64 bit machines, randtbl[] and __random[]
need to operate on "int" instead of "long int".
* locale/locfile-hash.c (compute_hashval): make shifted constant
a long to avoid loosing bits on 64 bit machines.
* dirent/tst-seekdir.c (main): fix confusing comment; print
a line to mark point where directory is rewound.
Fri Feb 16 15:01:49 1996 David Mosberger-Tang <davidm@azstarnet.com>
* time/strftime.c (strftime): any hour > 11 is PM (not > 12!).
Wed Feb 14 00:21:17 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/unix/sysv/linux/alpha/Makefile,
sysdeps/unix/sysv/linux/alpha/brk.S,
sysdeps/unix/sysv/linux/alpha/fpu_control.c,
sysdeps/unix/sysv/linux/alpha/fpu_control.h,
sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S,
sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S,
sysdeps/unix/sysv/linux/alpha/pipe.S,
sysdeps/unix/sysv/linux/alpha/setfpucw.c,
sysdeps/unix/sysv/linux/alpha/sigprocmask.c,
sysdeps/unix/sysv/linux/alpha/speed.c,
sysdeps/unix/sysv/linux/alpha/start.S,
sysdeps/unix/sysv/linux/alpha/syscall.S,
sysdeps/unix/sysv/linux/alpha/syscalls.list,
sysdeps/unix/sysv/linux/alpha/alpha/regdef.h,
sysdeps/unix/sysv/linux/alpha/sysdep.S,
sysdeps/unix/sysv/linux/alpha/sysdep.h: New files.
* sysdeps/alpha/setjmp_aux.c (__sigsetjmp_aux): restore return
address register before returning (gcc 2.7.1 doesn't do it,
presumably because $26 is declared as a global variable).
* sysdeps/unix/sysv/linux/sys/mman.h: msync was missing "flags"
argument.
* sysdeps/unix/alarm.c (alarm): do roundup using test & increment
instead of multiplication.
* sysdeps/posix/sleep.c (sleep): initialize sa_mask to mask of
currently blocked signals instead of the empty mask to ensure
that execution of alarm handler occurs with none of the currently
blocked signals enabled.
* sysdeps/unix/alpha/sysdep.h: new file (adapted from OSF/1 version).
* sysdeps/unix/bsd/osf/alpha/sysdep.h: include
sysdeps/unix/alpha/sysdep.h and removed definitions now in that file.
* sysdeps/alpha/divrem.S, sysdeps/alpha/htonl.S,
sysdeps/alpha/htons.S, sysdeps/alpha/machine-gmon.h,
sysdeps/alpha/_mcount.S, sysdeps/alpha/ntohl.s, sysdeps/alpha/ntohs.s,
sysdeps/alpha/strlen.S: New files.
* sysdeps/alpha/divl.S, sysdeps/alpha/divlu.S, sysdeps/alpha/divq.S,
sysdeps/alpha/divqu.S, sysdeps/alpha/divrem.m4,
sysdeps/alpha/macros.m4, sysdeps/alpha/reml.S, sysdeps/alpha/remlu.S,
sysdeps/alpha/remq.S, sysdeps/alpha/remqu.S, sysdeps/alpha/strlen.c:
Removed.
* sysdeps/generic/sbrk.c (__sbrk): argument is of type ptrdiff_t, not
int.
* sysdeps/alpha/__longjmp.c (__longjmp): moved dummy while loop
to end of function to avoid a jump across NOPs.
* sysdeps/alpha/Makefile (sysdep_routines): Removed all rules
pertaining to integer division/remainder routines since new code
doesn't require them.
* sunrpc/xdr_mem.c, sunrpc/xdr_stdio.c: Use 4 instead of sizeof(long)
where 32 bit quantities are consumed/stored. Various other minor
64-bit cleanups (casting).
* sunrpc/xdr.c (xdr_int): test for sizeof(int)==4 to determine
whether xdr_long or xdr_short should be used to encode an int.
Notice that an xdr_long is 4 bytes independent of the architecture
(otherwise no Alpha could interoperate with existing NFS servers,
for example). Ditto for enums.
* sunrpc/svc_udp.c (svcudp_recv): changed test from 4*sizeof(u_long)
to 16 since it really wants 16 bytes.
* sunrpc/svc.c (maskp): changed from u_long* to u_int32*.
* sunrpc/rpc_cmsg.c (xdr_callmsg), sunrpc/svc_authux.c: increment
"buf" pointer by casting it to a char* first since a long* may be 8
bytes or more and oa->oa_length may be any multiple of 4.
* sunrpc/rpc/xdr.h (IXDR_GET_LONG, IXDR_PUT_LONG): change casts to
u_int32_t (instead of u_long).
* sunrpc/clnt_udp.c (clntudp_call): replaced sizeof(u_long) by 4
since it really is testing for 32 bits. Fixed casts to use
u_int32 instead of u_long.
* sunrpc/xdr_rec.c: Likewise.
* sunrpc/clnt_tcp.c (clnttcp_call): replaced u_long by u_int32.
* sunrpc/rpc/auth.h: Likewise.
* limits.h (LONG_MAX, LONG_MIN, ULONG_MAX): use 64 bit values
for Alpha.
Tue Mar 19 13:27:49 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* sysdeps/i386/fpu/__math.h: New file.
Contributed by John C. Bowman <bowman@hagar.ph.utexas.edu>.
Sun Mar 17 00:28:16 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/posix/clock.c: Don't multiply the return value by
CLOCKS_PER_SEC or CLK_TCK.
* sysdeps/mach/hurd/getcwd.c: Fail with ENOENT if a parent directory
scan finds no match.
* posix/unistd.h (setpgrp): Declare no-arg version unless __FAVOR_BSD.
* misc/bsd-compat.c (setpgrp): New function, two arg version.
* sysdeps/stub/setpgid.c: Remove setpgrp alias.
* sysdeps/mach/hurd/setpgid.c: Likewise.
* sysdeps/unix/sysv/sysv4/setpgid.c: Likewise.
* sysdeps/unix/common/syscalls.list (setpgid): Remove setpgrp alias.
* sysdeps/unix/sysv/irix4/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/setpgrp.c: Obsolete file removed.
* posix/setpgrp.c (setpgrp): New file.
* posix/Makefile (routines): Add setpgrp.
Tue Feb 6 12:46:29 1996 David Mosberger-Tang <davidm@azstarnet.com>
* libc-symbols.h (weak_alias, weak_symbol): added definitions
for ECOFF (HAVE_ECOFF).
* sysdeps/unix/dirstream.h: Rewritten.
* sysdeps/unix/readdir.c: Rewritten.
* sysdeps/unix/telldir.c: Rewritten.
* sysdeps/unix/closedir.c: Use <...> instead of "..." for dirstream.h.
Remove __ from DIR struct member names.
* sysdeps/unix/dirfd.c: Likewise.
* sysdeps/unix/seekdir.c: Likewise.
* sysdeps/unix/rewinddir.c: Likewise.
* sysdeps/unix/opendir.c: Likewise. Don't allocate extra space after
DIR structure.
* sysdeps/stub/direct.h: File removed.
* sysdeps/unix/bsd/bsd4.4/direct.h: File removed.
* sysdeps/unix/bsd/direct.h: File removed.
* sysdeps/unix/common/direct.h: File removed.
* sysdeps/unix/sysv/irix4/direct.h: File removed.
* sysdeps/unix/sysv/isc3/direct.h: File removed.
* sysdeps/unix/sysv/sco3.2.4/direct.h: File removed.
* sysdeps/unix/sysv/sysv4/solaris2/direct.h: File removed.
* sysdeps/unix/common/direntry.h: New file.
* sysdeps/unix/bsd/direntry.h: New file.
* sysdeps/unix/bsd/bsd4.4/direntry.h: New file.
* sysdeps/unix/sysv/direntry.h: New file.
* sysdeps/stub/direntry.h: New file.
* dirent/dirent.h (struct dirent): Type removed. Include <direntry.h>
to define it.
(_D_EXACT_NAMLEN, _D_ALLOC_NAMLEN): New macros.
* dirent/Makefile (headers): Add direntry.h.
(distribute): Remove direct.h.
* sysdeps/posix/getcwd.c: Use new macros instead of d_namlen.
* dirent/scandir.c: Likewise.
* io/fts.c (fts_build): Likewise.
* io/ftw.c (ftw_dir): Likewise.
* sysdeps/posix/ttyname.c: Likewise.
* sysdeps/unix/sysv/sysv4/solaris2/syscalls.list: New file.
* sysdeps/mach/hurd/profil.c (MAX_PC_SAMPLES): New macro.
(collector_timeout): New static variable.
(update_waiter): Actually call __task_enable_pc_sampling.
Set collector_timeout based on the `tick' count returned.
(profile_waiter): Use MAX_PC_SAMPLES. Set nsamples before RPC.
Use collector_timeout in __mach_msg call.
* gmon/Makefile (noprof): New variable containing mcount.
Append profil unless it is in $(unix-syscalls).
(mcount.po): Use $(noprof) for list of targets in this rule.
* libc-symbols.h: Define _LIBC before #include <config.h>.
Sun Feb 25 12:29:23 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* config.h.in [_LIBC] (HAVE_STRERROR): Define it.
Protect 2nd page of #undef's for generator programs with #ifndef _LIBC.
* time/zic.c, time/zdump.c, time/private.h: Updated from ADO's latest.
Fri Feb 9 12:40:19 1996 Brendan Kehoe <brendan@lisa.cygnus.com>
* libio/cleanup.c (_IO_cleanup_registration_needed)
[!_G_HAVE_ATEXIT]: Init to NULL.
* libio/filedoalloc.c (_IO_cleanup_registration_needed): Remove decl.
Thu Feb 8 08:12:50 1996 Brendan Kehoe <brendan@cygnus.com>
* libio/filedoalloc.c (_IO_cleanup_registration_needed): Revert
previous change, since cleanup.c only defines it if _G_HAVE_ATEXIT.
Wed Feb 7 15:10:17 1996 Brendan Kehoe <brendan@lisa.cygnus.com>
* libio/filedoalloc.c (_IO_cleanup_registration_needed): Declare as
extern.
Sat Feb 24 11:34:13 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* sysdeps/i386/memcmp.S: Fix argument %esp offsets.
* time/sys/time.h (timeradd, timersub): New macros; BSD has these.
* sysdeps/posix/utimes.c (__utimes): There are 1000000 usecs in a
sec.
Sun Feb 18 13:56:00 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* elf/Makefile, time/Makefile: Make `all' the default target.
Mon Feb 19 18:09:04 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* misc/sys/ptrace.h: Moved to ...
* sysdeps/generic/sys/ptrace.h: ... here.
* sys/ptrace.h: File removed.
Sun Feb 18 12:13:07 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/Makefile (headers): Add fpu_control.h.
* sysdeps/unix/sysv/linux/i386/sysdep.S (errno): Put it into .bss
so that the symbol alias works.
* sysdeps/unix/sysv/linux/m68k/fpu_control.h (_FPU_SETCW): Corrected.
* sysdeps/unix/sysv/linux/resourcebits.h: New file.
* sysdeps/unix/sysv/linux/sys/ptrace.h: New file.
* sysdeps/unix/sysv/linux/syscalls.list: Add getegid, geteuid,
getppid and reboot.
* sysdeps/unix/sysv/linux/sysconf.c: Special version that does not
use getdtablesize.
Sat Feb 17 10:30:21 1996 David Mosberger-Tang <davidm@AZStarNet.com>
* stdio-common/printf_fp.c, stdlib/strtod.c, sysdeps/ieee754/dbl2mpn.c,
sysdeps/ieee754/ldbl2mpn.c, sysdeps/ieee754/mpn2dbl.c,
sysdeps/ieee754/mpn2ldbl.c: Cast left operands of shift instructions
to `long' where necessary.
Thu Feb 15 20:04:50 1996 Ulrich Drepper <drepper@gnu.ai.mit.edu>
* stdlib/fpioconst.h: Introduce new constant _FPIO_CONST_OFFSET.
* stdio-common/printf_fp.c, stdlib/strtod.c: Use _FPIO_CONST_OFFSET
to correctly access MPN array depending on architecture.
* gmon/Makefile (headers): Remove machine-gmon.h.
* sysdeps/stub/machine-gmon.h, sysdeps/i386/machine-gmon.h: Removed.
* gmon/mcount.c [! NO_UNDERSCORES] (_mcount): Specify "mcount" as
the asm name.
(_mcount): Define normally, taking no args.
Use __builtin_return_address to fetch PC values of caller and caller's
caller.
Tue Feb 13 00:12:12 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* gmon/Makefile (headers): Remove machine-gmon.h.
* sysdeps/stub/machine-gmon.h, sysdeps/i386/machine-gmon.h: Removed.
* gmon/mcount.c [! NO_UNDERSCORES] (_mcount): Specify "mcount" as
the asm name.
(_mcount): Define normally, taking no args.
Use __builtin_return_address to fetch PC values of caller and caller's
caller.
* Makerules: Rewrote rules to update libc archives of all flavors.
Define separate specific rules for each flavor using o-iterator.
* sysdeps/unix/Makefile: Include s-proto.d only ifdef subdir.
Sat Feb 10 11:35:16 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makerules (ar-symtab-name): New macro. Replace all occurences
of __.SYMDEF by $(ar-symtab-name).
* sysdeps/unix/sysv/Makefile (ar-symtab-name): Define as empty.
* Makefile (configure, %/configure): Depend on aclocal.m4.
* Make-dist (configure, %/configure): Likewise.
* sysdeps/unix/Makefile: Include s-proto.d for its deps.
* gmon/sys/gmon.h: Don't include machine-gmon.h; those defns are
only needed in the implementation, not for any users.
* time/northamerica: Updated from ADO 96c, new rules for Mexico in
1996.
* gmon: New directory of profiling code, incorporated from
4.4BSD-Lite and modified.
* sysdeps/i386/machine-gmon.h: New file.
* sysdeps/stub/machine-gmon.h: New file.
* sysdeps/mach/hurd/profil.c: New file.
* sysdeps/stub/profil.c: New file.
* sysdeps/unix/bsd/profil.S: New file.
* Makefile (subdirs): Add gmon.
* csu/gmon-start.c: New file.
* csu/Makefile (extra-objs): Add gmon-start.o,
g$(start-installed-name).
(install-lib, omit-deps): Add g$(start-installed-name).
($(objpfx)g$(start-installed-name)): New target.
