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PR cli/29945 points out that "set debug timestamp 1" stopped working
-- this is a regression due to commit b8043d27 ("Remove a ui-related
memory leak").
This patch fixes the bug and adds a regression test.
I think this should probably be backported to the gdb 13 branch.
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29945
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When --no-keep-memory is used, the input section memory may not be cached.
Allocate input section memory for -z pack-relative-relocs if needed.
bfd/
PR ld/29939
* elfxx-x86.c (elf_x86_size_or_finish_relative_reloc): Allocate
input section memory if needed.
ld/
PR ld/29939
* testsuite/ld-elf/dt-relr-2i.d: New test.
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A recent change in the XTheadFmv spec fixed an encoding bug in the
document. This patch changes the code to follow this bugfix.
Spec patch can be found here:
https://github.com/T-head-Semi/thead-extension-spec/pull/11
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
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The gdb.gdb self-tests were timing out for me, which turned out to be
PR testsuite/29325. Looking into it, the problem is that the version
of the Boehm GC that is used by Guile on my machine causes a SEGV
during stack probing. This unexpected stop confuses the tests and
causes repeated timeouts.
This patch adapts the two failing tests. This makes them work for me,
and reduces the running time of gdb.gdb from 20 minutes to about 11
seconds.
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29325
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Now that all igen ports are in the top-level makefile, we don't need
this logic in any subdirs anymore, so clean it up.
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Since these are the last mips igen rules, we can clean up a number of
bits in the local Makefile.in.
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The naming in here has grown organically and is confusing to follow.
Originally there was only one set of rules for generating code from
the igen sources, so calling it "tmp-igen" and such made sense. But
when other multigen modes were added ("m16" & "multi") which also
used igen, it's not clear what's common igen and what's specific to
this generation mode. So rename the set of rules from "igen" to
"single" so it's easier to follow.
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Since this rule is pretty simple, hoist it up to the common build.
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The m16 & multi targets generate itable once even when all the other
modules are generated multiple times. The default igen target will
generate itable with everything else out of convenience. This means
flags are passed which don't affect the generated itable there.
We can unify the itable generation by making sure the right -F/-M
filter variables are passed down. Since there's already a dedicated
rule & variable in the multi build mode, generalize that and switch
the m16 & igen builds over too.
I spent a lot of time staring at this code, building for diff mips
targets, and exploring all the shell code paths. I think this is
safe, but only time (and users) will really tell.
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This variable is only used to generate the itable files. In preparation
for merging the itable logic among all ports, rename "multi_flags" to a
more appropriate "igen_itable_flags" variable. There should be no real
chagnes here otherwise.
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This code appears to be unused since it was first merged. When
micromips was enabled, it was via the "MULTI" config, not the
"MICROMIPS" config, and the multi configs have sep vars. Since
nothing sets SIM_MIPS_GEN=MICROMIPS in the config, all of this
should be unreachable, so punt it to simplify. Further, the
SIM_MIPS_MICROMIPS16_FLAGS & SIM_MIPS_MICROMIPS_FLAGS settings
rely on sim_mips_micromips{,16}_{filter,machine} variables that
are never set in the configure script.
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PR symtab/29343 points out that it would be beneficial if
comp_unit_head had a constructor and used initializers. This patch
implements this. I'm unsure if this is sufficient to close the bug,
but at least it's a step.
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29343
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I think the test for table->files[file].dir being non-zero is wrong
for DWARF5 where index zero is allowed and is the current directory of
the compilation. Most times this will be covered by the use of
table->comp_dir (from DW_AT_comp_dir) in concat_filename but the point
of putting the current dir in .debug_line was so the section could
stand alone without .debug_info.
Also, there is no need to check for table->dirs non-NULL, the
table->num_dirs test is sufficient.
* dwarf2.c (concat_filename): Correct and simplify tests of
directory index.
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All ports that need to clean things up at distclean time have moved
to the top-level build, so we can drop support for this hook.
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This was missed when mips/configure was merged into the top-level.
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The following test was failing on ppc64 and s390x:
"FAIL: encode-1: Encode buffer match"
The offending stub was how we memcpy the FRE start address to the buffer
(on-disk format). When the host is big-endian, the address of the
source buffer for the memcpy needs to point to the uint8_t/uint16_t sized
value of the FRE start addr, not uint32_t sized value; we intend to copy
out only the fre_start_addr_sz number of bytes.
ChangeLog:
* libsframe/sframe.c (sframe_encoder_write_fre_start_addr): New
function.
(sframe_encoder_write_fre): Use it instead of memcpy.
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While mips has respected sim_igen_smp at configure time (which was
always empty since it defaulted smp to off), no other igen port did.
Move this to a makefile variable and plumb it through the common
IGEN_RUN variable instead so everyone gets it by default. We also
clean up some redundant -N0 setting with multirun mips.
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At some point we want this to work, but it's not easy to test if
the configure option isn't available. Restore it, but keep the
default off.
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All the runtimes were only initializing a single CPU. When SMP is
enabled, things quickly crash as none of the other CPU structs are
setup. Change the default from 0 to the compile time value.
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There's no need to assert there's only 1 CPU when setting them all
up here is trivial.
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This code loops over available cpus with "c", but then looks up the
cpu with "i". Fix the typo so the code works correctly with smp.
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The igen tool sets up the SD & CPU defines for code fragments to use,
but v850 was expecting "sd". Change all the igen related code to use
SD so it actually compiles, and fix a few places to use "CPU" instead
of hardcoding cpu0.
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This code loops over available cpus with "c", but then looks up the
cpu with "i". Fix the typo so the code works correctly with smp.
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The igen tool sets up the SD define for code fragments to use, but
mn10300 was expecting "sd". Change all the igen related code to use
SD so it actually compiles.
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This code fails to compile when SMP is enabled due to some obvious
errors. Fix those and change the logic to avoid CPP to prevent any
future rot from creeping back in.
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Now that there is no subdir configure script, we can clean up some
logic that was spread between the files.
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This is the last bit of logic that exists in the mips configure
script, so move it to the top-level configure to kill it off.
We still have to move the Makefile.in igen logic to local.mk,
but this is a required first step for that.
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To prepare moving this logic to the top-level configure, the vars
need to be namespaced. Do that here to make it easier to review.
Basically sim_xxx -> SIM_MIPS_XXX when a var is exported from the
configure script to the Makefile, and sim_xxx -> sim_mips_xxx when
the var is internal in the configure script.
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Make sure the igen tool exists before trying to compile the mips
subdir. This happens to work when mips has a subconfigure, but
hits a race condition when that is removed.
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Nothing defines this, and it isn't called in all the engine runtimes,
so drop it entirely to avoid confusion.
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Now that igen itself has this logic, drop these custom build rules
to greatly simplify.
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Every file that igen outputs is then processed with the move-if-changed
shell script. This creates a lot of boilerplate in the build and not an
insignificant amount of build-time overhead. Move the simple "is the file
changed" logic into igen itself.
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These are const data arrays of strings and numbers. We don't want
or need them to be writable, so mark them all const.
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In commit:
commit 9f50fe0835850645bd8ea9bb1efe1fe6c48dfb12
Date: Wed Dec 7 15:55:25 2022 +0000
gdb/testsuite: new test for recent dwarf reader issue
A new test (gdb.base/signed-builtin-types.exp) was added that made use
of 'info sources' to figure out if the debug information for a
particular object file had been fully expanded or not. Unfortunately
some lines of the 'info sources' output can be very long, this was
observed on some systems where the debug information for the
dynamic-linker was installed, in this case, the list of source files
associated with the dynamic linker was so long it would cause expect's
internal buffer to overflow.
This commit switches from using 'info sources' to 'maint print
objfile', the output from the latter command is more compact, but
also, can be restricted to a single named object file.
With this change in place I am no longer seeing buffer overflow errors
from expect when running gdb.base/signed-builtin-types.exp.
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There's no need for these settings to be in sim-main.h which is shared
with common/ sim code, so move it all out to the existing or1k-sim.h.
Unfortunately, we can't yet drop the or1k-sim.h include from sim-main.h
as many of the generated CGEN files refer only to sim-main.h. We'll
have to improve the CGEN interface before we can make more progress,
but this is at least a minor improvement.
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This changes dwarf2_has_info to return bool.
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ChangeLog:
* libsframe/testsuite/libsframe.decode/be-flipping.c: Free
SFrame buffer.
* libsframe/testsuite/libsframe.decode/frecnt-1.c: Likewise.
* libsframe/testsuite/libsframe.decode/frecnt-2.c: Likewise.
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sframe_decode () needs to malloc a temporary buffer of the same size as
the input buffer (containing the SFrame section bytes) when endian
flipping is needed. The decoder keeps the endian flipped contents in
this buffer for its usage. This code is necessary when the target
endianneess is not the same as host endianness.
The malloc'd buffer needs to be kept track of, so that it can freed up in
sframe_decoder_free () later.
ChangeLog:
* libsframe/sframe-impl.h (struct sframe_decoder_ctx): Add new
member to keep track of the internally malloc'd buffer.
* libsframe/sframe.c (sframe_decoder_free): Free it up.
(sframe_decode): Update the reference to the buffer.
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I see this fail since commit 991180627851 ("Use toplevel configure for
GMP and MPFR for gdb"):
FAIL: gdb.base/float128.exp: show configuration
The test fails to find --with-mpfr or --without-mpfr in the "show
configuration" output. Since MPFR has become mandatory, we can just
remove that check and simplify the test to assume MPFR support is there.
Change-Id: I4f3458470db0029705b390dfefed3a66dfc0633a
Approved-By: Tom de Vries <tdevries@suse.de>
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There's no need for these settings to be in sim-main.h which is shared
with common/ sim code, so move it all out to the existing m32r-sim.h.
Unfortunately, we can't yet drop the m32r-sim.h include from sim-main.h
as many of the generated CGEN files refer only to sim-main.h. We'll
have to improve the CGEN interface before we can make more progress,
but this is at least a minor improvement.
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There's no need for these settings to be in sim-main.h which is shared
with common/ sim code, so drop the bfin.h include and move the remaining
bfin-specific settings into it.
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There's no need for these settings to be in sim-main.h which is shared
with common/ sim code, so move it all out to a new header which only
this port will include.
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