Use the substituted value for GCDFLAGS instead of hardcoding $(CFLAGS) so
that the subdir configure scripts use the configured value.
* configure.ac (GDCFLAGS): Set default from ${CFLAGS}.
This patch fixes PR bootstrap/106472 by adding a missing dependency
to Makefile.def to allow make bootstrap when configured using
"--enable-languages=go" (and not using make with multiple threads).
2022-07-31 Roger Sayle <roger@nextmovesoftware.com>
PR bootstrap/106472
* Makefile.def (dependencies): Make configure-target-libgo depend
upon all-target-libbacktrace.
Compilation during STAGEautofeedback produces additional warnings
since inlining decisions with -fauto-profile are different from
other builds.
This patches disables warnings as errors for STAGEautofeedback.
Tested on x86_64-pc-linux-gnu.
* Makefile.tpl: Disable warnings as errors for STAGEautofeedback
cc1, cc1plus, and lto built during STAGEautoprofile need to be built with
debug info since they are used to build target libs. -gtoggle was
turning off debug info for this stage.
create_gcov should be passed prev-gcc/cc1, prev-gcc/cc1plus, and prev-gcc/lto
instead of stage1-gcc/cc1, stage1-gcc/cc1plus, and stage1-gcc/lto when
processing profile data collected while building target libraries.
Tested on x86_64-pc-linux-gnu.
* Makefile.tpl: Remove -gtoggle for STAGEautoprofile
When we collect just user events for autofdo with lbr we get some events where branch
sources are kernel addresses and branch targets are user addresses. Without kernel MMAP
events create_gcov can't make sense of kernel addresses. Currently create_gcov fails if
it can't map at least 95% of events. We sometimes get below this threshold with just
user events. The change is to collect both user events and kernel events.
Tested on x86_64-pc-linux-gnu.
* Makefile.tpl: Collect both kernel and user events for autofdo
The D front-end is now itself written in D, in order to build GDC, you
will need a working GDC compiler (GCC version 9.1 or later).
GCC changes:
- Add support for bootstrapping the D front-end.
These add the required components in order to have a D front-end written
in D itself. Because the compiler front-end only depends on the core
runtime modules, only libdruntime is built for the bootstrap stages.
D front-end changes:
- Import dmd v2.098.0-beta.1.
Druntime changes:
- Import druntime v2.098.0-beta.1.
Phobos changes:
- Import phobos v2.098.0-beta.1.
The jump from v2.076.1 to v2.098.0 covers nearly 4 years worth of
development on the D programming language and run-time libraries.
* Makefile.def: Add bootstrap to libbacktrace, libphobos, zlib, and
libatomic.
* Makefile.tpl (POSTSTAGE1_HOST_EXPORTS): Fix command for GDC.
(STAGE1_CONFIGURE_FLAGS): Add --with-libphobos-druntime-only if
target-libphobos-bootstrap.
(STAGE2_CONFIGURE_FLAGS): Likewise.
Use of libelf was removed from gcc in r0-104274-g48215350c24d52 ("re PR
lto/46273 (Failed to bootstrap)") around 2010, before gcc-4.6.0.
This change removes unused references to libelf from top-level configure
and Makefile.
* Makefile.def: Drop libelf module and gcc-configure dependency
on it.
* Makefile.tpl (HOST_EXPORTS): Drop unused LIBELFLIBS and
LIBELFINC.
In libtool.m4, we use uclinuxfdpiceabi in cases where ELF shared
libraries support is required, as uclinux does not guarantee that.
* libtool.m4: Handle uclinuxfdpiceabi.
This change adds the +nodefaultrpath ld option to remove all library
paths that were specified with the -L option from the embedded path.
* libtool.m4 (archive_cmds): Add +nodefaultrpath ld option on
hppa64-*-hpux11*.
This change adds the configury bits to activate the build of
shared libs on VxWorks ports configured with --enable-shared,
for libraries variants where this is generally supported (rtp,
code model !large - currently not compatible with -fPIC).
Set lt_cv_deplibs_check_method in libtool.m4, so the build of
libraries know how to establish dependencies. This is useful in
configurations such as aarch64 where proper support of LSE relies
on accurate dependency information between libstdc++ and libgcc_s
to begin with.
* libtool.m4 (*vxworks*): When enable_shared, set dynamic_linker
and friends for rtp !large. Assume the linker has the required
abilities and set lt_cv_deplibs_check_method.
* config-ml.in: Treat GDC and GDCFLAGS like other compiler/flag
environment variables.
Cherry picked from GCC commit b4c522fabd0df7be08882d2207df8b2765026110
The FIXME comments saying "Leave out until this is tested a bit more"
are from 1997. I think they've been sufficiently tested.
* config-ml.in (multi-do, multi-clean): Add @ to silence recipes.
Remove FIXME comments.
gcc's build system has BOOT_CFLAGS and various STAGE<N>_C{,XX}FLAGS
variables. BOOT_CXXFLAGS is not handled anywhere.
config/
* mh-mingw: Drop assignment of unused BOOT_CXXFLAGS variable.
This is similar to what was done in
eea4e2ff0a3f5e7f37df204c070cc5d9ef339e6e (where it was added to
STAGE*_CXXFLAGS), but this adds the flag to the CXXFLAGS and
BOOT_CXXFLAGS variables too (as it's already added to CFLAGS and
BOOT_CFLAGS).
2021-04-09 Martin Storsjö <martin@martin.st>
config/
* mh-mingw: Set __USE_MINGW_ACCESS in missed C++ flags
variables
This makes the host_shared value available to host makefile
fragments.
It uses this to adjust Darwin's mdynamic-no-pic in the case that
shared host resources are required.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
config/
* mh-darwin: Require a non-shared host configuration to
enable mdynamic-no-pic where that is supported.
There were two uses for the Darwin host config fragment:
The first is to arrange for targets that support mdynamic-no-pic
to be built with that enabled (since it makes a significant
difference to the compiler performance). We can be more specific
in the application of this, since it only applies to 32b hosts
plus powerpc64-darwin9.
The second was to work around a tool bug where -fno-PIE was not
propagated to the link stage. This second use is redundant,
since the buggy toolchain cannot bootstrap current GCC sources
anyway.
This makes the host fragment more specific and reduces the number
of toolchains for which it is included which reduces clutter in
configure lines.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
config/
* mh-darwin: Make this specific to handling the
mdynamic-no-pic case.
This patch adds the new thread model `mcf`, which implements mutexes
and condition variables with the mcfgthread library.
Source code for mcfgthread is available at <https://github.com/lhmouse/mcfgthread>.
config/
* gthr.m4 (GCC_AC_THREAD_HEADER): Add new case for `mcf` thread
model
So the problem here is that now the lto-plugin requires NM that works
with LTO to work so we need to pass down NM just like we do for ranlib
and ar.
config/
* bootstrap-lto-lean.mk: Handle NM like RANLIB AND AR.
* bootstrap-lto.mk: Likewise.
This commit merges the devel/modula2 into master.
The libraries reside in libgm2, the compiler in gcc/m2
and the testsuite in gcc/testsuite/gm2.
* configure.ac (target_libraries): Add target-libgm2.
Add NCN_STRICT_CHECK_TARGET_TOOLS entry for gm2.
Add GCC_TARGET_TOOL entry for gm2. (compare_exclusions)
add gcc/m2/gm2-compiler/M2Version,
gcc/m2/gm2-compiler-boot/SYSTEM and gcc/m2/gm2version.
* Makefile.def (target_modules): Add libgm2. (flags_to_pass)
Add GM2_FOR_TARGET, GM2FLAGS_FOR_TARGET. (dependencies) Add
all-target-libgm2 and on=all-target-libatomic. (languages)
Add entry for language=m2 with gcc-check-target=check-m2
and lib-check-target=check-target-libgm2.
* Makefile.tpl (BUILD_EXPORTS): Add definition for GM2
and GM2FLAGS. (HOST_EXPORTS) Add definition for GM2.
(BASE_TARGET_EXPORTS) Add definition for GM2.
(GM2_FOR_BUILD) Defined. (GM2FLAGS) Defined.
(GM2_FOR_TARGET) Defined. (GM2FLAGS_FOR_TARGET) Defined.
(EXTRA_HOST_FLAGS) Defined. (POSTSTAGE1_FLAGS_TO_PASS)
Add GM2 and GM2_FOR_BUILD. (EXTRA_TARGET_FLAGS) Add
GM2 and GM2FLAGS. (EXTRA_GCC_FLAGS) Add GM2_FOR_TARGET.
Signed-off-by: Gaius Mulley <gaiusmod2@gmail.com>
When the GCC build runs GCC_FOR_TARGET, e.g. for selftests or for
dumping specs, it doesn't use TFLAGS in non-bootstrap scenarios. This
patch arranges for TFLAGS to be passed from the top level down to gcc
in GCC_FOR_TARGET in this case.
* Makefile.tpl (HOST_EXPORTS): Add TFLAGS to GCC_FOR_TARGET.
(EXTRA_GCC_FLAGS): Likewise.
We now use a C++ compiler so that we need to process
CXXFLAGS as well as CFLAGS in the gcc-plugin config
fragment.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
config/
* gcc-plugin.m4: Save and process CXXFLAGS.
$ac_cv_prog_OBJDUMP contains the --host OBJDUMP that
libtool has inferred. Current config/gcc-plugin.m4 does
not respect the user's choice for OBJDUMP.
config/
* gcc-plugin.m4: Use libtool's $ac_cv_prog_OBJDUMP.
The latest versions of Darwin on the Aarch64 platform mandate PIE executables.
On x86_64 it remains optional, but produces tool warnings after Darwin20, so
we default to PIE executables there too.
All (non-PowerPC) 64b Darwin platforms mandate PIC code and therefore force
host_shared on (we issue a diagnostic if the user tries to configure them
non-shared).
However, this also means we cannot test the host_shared setting independently
of the host_pie setting so that the logic for setting PICFLAG must be amended
for Darwin.
For Darwin versions required to have PIE executables, in the event that the
user tries to configure these as --disable-host-pie, we issue a warning and
override the setting. These versions must also switch host_pie on even if it
is not given in the configure line. To cater for this we pass the current
value of host_pie, as determined by top-level configure, to the GCC configure.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
* Makefile.def: Pass the enable-host-pie value to GCC configure.
* configure.ac: Adjust the logic for shared and PIE host flags to
ensure that PIE is passed for hosts that require it.
This patch implements the --enable-host-pie configure option which
makes the compiler executables PIE. This can be used to enhance
protection against ROP attacks, and can be viewed as part of a wider
trend to harden binaries.
Co-Authored by: Iain Sandoe <iain@sandoe.co.uk>
* configure.ac (--enable-host-pie): New check. Set PICFLAG after this
check.
intl/
* configure.ac (--enable-host-shared): Don't set PICFLAG here.
(--enable-host-pie): New check. Set PICFLAG after this check.
libdecnumber/
* configure.ac (--enable-host-shared): Don't set PICFLAG here.
(--enable-host-pie): New check. Set PICFLAG after this check.
zlib/
* configure.ac (--enable-host-shared): Don't set PICFLAG here.
(--enable-host-pie): New check. Set PICFLAG after this check.
If we are building PIC/PIE host executables, and we are building dependent
libs (e.g. GMP) in-tree those libs need to be configured to generate PIC code.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
* Makefile.def: Pass host_libs_picflag to host dependent library
configures.
* configure.ac (host_libs_picflag): New configure variable set to
'--with-pic' when building 'host_shared'.
We do not use the shared libffi libraray, nor do we install it.
However, on at least Darwin, the shared version will be picked
up for testing, so it is preferrable not to build it.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
* Makefile.def: Do not build shared libffi.
The change in major version (and the increment from Darwin19 to 20)
caused libtool tests to fail which resulted in incorrect build settings
for shared libraries.
PR target/97865
* libtool.m4: Update handling of Darwin platform link flags
for Darwin20.
LoongArch always support clz and ctz instructions, so we can always use
__builtin_{clz,ctz} for count_{leading,trailing}_zeros. This improves
the code of libgcc, and also benefits Glibc once we merge longlong.h
there.
Bootstrapped and regtested on loongarch64-linux-gnu.
include/
* longlong.h [__loongarch__] (count_leading_zeros): Define.
[__loongarch__] (count_trailing_zeros): Likewise.
[__loongarch__] (COUNT_LEADING_ZEROS_0): Likewise.
The loongarch64 specification permits page sizes of 4KiB, 16KiB and 64KiB,
but only 16KiB pages are supported for now.
Co-Authored-By: qijingwen <qijingwen@loongson.cn>
include/
* vtv-change-permission.h (defined): Determines whether the macro
__loongarch_lp64 is defined
(VTV_PAGE_SIZE): Set VTV_PAGE_SIZE to 16KiB for loongarch64.
The NUMCHILD value for the "A_String_Access" test differs for X86 and
PowerPC. The patch substitutes $decimal instead of "1" to match the value
of NUMCHILD.
The test "-var-update A_String_Access" generates different output depending
on the value of VAROBJ_UPDATE_RESULT.TYPE_CHANGED. If the value is true,
the strings "new_type" and "new_num_children" are printed along with their
values.
The VAROBJ_UPDATE_RESULT.TYPE_CHANGED value is true on PowerPC which
produces the output:
Expecting: ^(-var-update A_String_Access[
]+)?(\^done,changelist=\[\{name="A_String_Access",in_scope="true",type_changed="false",has_more="0"\}\][
]+[(]gdb[)]
[ ]*)
-var-update A_String_Access
^done,changelist=[{name="A_String_Access",in_scope="true",type_changed="true",new_type="pck.string_access",new_num_children="1",has_more="0"}]
(gdb)
FAIL: gdb.ada/mi_var_access.exp: update at stop 2 (unexpected output)
The patch adds a second possible result string for the test
$re_varobj_update_result_type to match the case when type_changed is true.
Currently for the mi_var_access.exp test VAROBJ_UPDATE_RESULT.TYPE_CHANGED
is true on PowerPC and false on X86-64.
Fixes 2 failures on PowerPC.
Approved-By: Tom Tromey <tom@tromey.com>
GDB's Python documentation claims that range types have two fields,
but this is not true, and attempts to access them hit this error:
"Type is not a structure, union, enum, or function type."
This patch fixes the documentation.
While working on a GNAT bug, I wanted to also test
arr_acc_idx_w_gap.exp using GNAT encodings. When the GNAT change is
ready, I plan to add a new case here.
Tested on x86-64 Fedora 36. I am checking this in.
Before actual vlen handling, fix the riscv_gdbarch_features hashing
function based on the actual valid range of vlen. In bytes, vlen is 0,
or 4 <= xlen <= 8192.
Before actual vlen handling, this commit fixes its description to allow vlen
less than 16 (but 4 or greater), to support vector subset extensions for
embedded environment ('Zve32*').
This fixes the compilation warnings introduced by my bfdio.c patch.
The removed bfd_seeks in coff_symfile_read date back to 1994, commit
7f4c859520, prior to which the file used stdio rather than bfd to read
symbols. Since it now uses bfd to read the file there should be no
need to synchronise to bfd's idea of the file position. I also fixed
a potential uninitialised memory access.
Approved-By: Andrew Burgess <aburgess@redhat.com>
Andreas Schwab
Philip Herron
Roger Sayle
Thomas Schwinge
Eugene Rozenfeld
Iain Buclaw
Sergei Trofimovich
Martin Liska
Christophe Lyon
Bernhard M. Wiedemann
John David Anglin
Olivier Hainque
Arsen Arsenović
Max Filippov
Jozef Lawrynowicz
Iain Buclaw
Jonathan Wakely
Martin Storsjö
Iain Sandoe
LIU Hao
Andrew Pinski
Gaius Mulley
Alexandre Oliva
David Seifert
Peter Foley
Marek Polacek
Xi Ruoyao
Meghan Denny
Jason Merrill
Lulu Cheng
GDB Administrator
Carl Love
Tom Tromey
Tsukasa OI
Alan Modra