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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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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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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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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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There's no need for these settings to be in sim-main.h which is shared
with common/ sim code, so drop the pru.h include and move the remaining
pru-specific settings into it.
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Rename mn10300_sim.h to mn10300-sim.h to match other ports, and move most
of the arch-specific content out of sim-main.h to it. This isn't a big
win though as we still have to include the header in sim-main.h due to the
igen interface: it hardcodes including sim-main.h in its files. So until
we can fix that, we have to keep bleeding these settings into the common
codes.
Also take the opportunity to purge a lot of unused headers from these.
The local modules should already include the right headers, so there's
no need to force everyone to pull them in. A lot of this is a hold over
from the pre-igen days of this port.
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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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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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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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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.
We can also move the machs.h include out since the model logic was all
generalized from compile-time to runtime last year.
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Rename v850_sim.h to v850-sim.h to match other ports, and move most
of the arch-specific content out of sim-main.h to it. This isn't a
big win though as we still have to include the header in sim-main.h
due to the igen interface: it hardcodes including sim-main.h in its
files. So until we can fix that, we have to keep bleeding these
settings into the common codes.
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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 msp430-sim.h include and move it to
the few files that actually need it.
While we're here, drop redundant includes from sim-main.h:
* sim-config.h & sim-types.h included by sim-basics.h already
* sim-engine.h included by sim-base.h already
And move sim-options.h to the one file that needs it.
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