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Tue, 15 Apr 2025 09:05:12 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/214833 --------------n0nDd820jB77iOoo4eOY0Y6N Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by mx0a-0064b401.pphosted.com id 53F2IPgY007792 On 11-04-2025 13:08, Martin Jansa wrote: > CAUTION: This email comes from a non Wind River email account! > Do not click links or open attachments unless you recognize the sender = and know the content is safe. > > On Mon, Mar 31, 2025 at 6:47=E2=80=AFPM Khem Raj via lists.openembedded= .org > wrote: >> On Sun, Mar 30, 2025 at 10:54=E2=80=AFPM Yash Shinde via >> lists.openembedded.org >> wrote: >>> From: Yash Shinde >>> >>> Rust stable version updated to 1.85.0 >>> https://blog.rust-lang.org/2025/02/20/Rust-1.85.0.html >>> >>> Some of the major updates: >>> >>> - Update LIC_FILES_CHKSUM in libstd-rs and rust recipes. >>> License-Update: Unicode license text is updated to Unicode-3.0 Licens= e. >>> https://github.com/rust-lang/rust/commit/6d2a3e9786ec43a0e0af20386e70= 46328296ac86 >>> >>> - Pass '-Zforce-unstable-if-unmarked' to RUSTFLAGS in libstd-rs.bb >>> Fix:https://github.com/rust-lang/rust/issues/133857#issuecomment-2526= 341227 >>> >>> - Downgrade bootstrap cc version causing bootstrap to fail on custom = targets. (Backported from v1.85.1) >>> Fix:https://github.com/rust-lang/rust/pull/137460/commits/e4ca11f87ff= ca8c63aa56d45b46e62b6acc58bd7 >>> >>> - Explicitly set float ABI for all ARM 32 bits targets. >>> Fix:https://github.com/rust-lang/rust/commit/a51fefcaab835b310e2e2600= 5b50982d0049d905 >>> >>> - Rust v1.85.0 tarball doesn't ship gcc tree. >>> Drop "remove_gcc_directory" postfunc which removed it and prevented t= he bloat. >>> Fix:https://github.com/rust-lang/rust/commit/13c3f9b9498013837782b461= 20085ea19ca75518 >>> >>> Adapted the patch changes with v1.85.0: >>> repro-issue-fix-with-cc-crate-hashmap.patch >>> revert-link-std-statically-in-rustc_driver-feature.patch >>> rust-oe-selftest.patch >>> rv32-cargo-rustix-0.38.40-fix.patch >>> >>> Dropped patches: >>> fix-tidy-check-failure.patch since it's merged with v1.85.0. >>> >>> Signed-off-by: Yash Shinde >>> --- >>> .../classes-recipe/rust-target-config.bbclass | 5 + >>> meta/conf/distro/include/tcmode-default.inc | 2 +- >>> .../rust/{cargo_1.84.1.bb =3D> cargo_1.85.0.bb} | 0 >>> .../rust/files/downgrade-bootstrap-cc.patch | 41 +++ >>> .../rust/files/fix-tidy-check-failure.patch | 19 -- >>> ...epro-issue-fix-with-cc-crate-hashmap.patch | 60 ++++- >>> ...d-statically-in-rustc_driver-feature.patch | 4 +- >>> .../rust/files/rust-oe-selftest.patch | 46 ++-- >>> .../files/rv32-cargo-rustix-0.38.38-fix.patch | 236 ---------------= --- >>> .../files/rv32-cargo-rustix-0.38.40-fix.patch | 236 +++++++++++++++= +++ >>> ...ibstd-rs_1.84.1.bb =3D> libstd-rs_1.85.0.bb} | 4 +- >>> ....84.1.bb =3D> rust-cross-canadian_1.85.0.bb} | 0 >>> ...ust-llvm_1.84.1.bb =3D> rust-llvm_1.85.0.bb} | 0 >>> meta/recipes-devtools/rust/rust-snapshot.inc | 81 +++--- >>> meta/recipes-devtools/rust/rust-source.inc | 23 +- >>> .../rust/{rust_1.84.1.bb =3D> rust_1.85.0.bb} | 2 +- >>> 16 files changed, 417 insertions(+), 342 deletions(-) >>> rename meta/recipes-devtools/rust/{cargo_1.84.1.bb =3D> cargo_1.85.= 0.bb} (100%) >>> create mode 100644 meta/recipes-devtools/rust/files/downgrade-boots= trap-cc.patch >>> delete mode 100644 meta/recipes-devtools/rust/files/fix-tidy-check-= failure.patch >>> delete mode 100644 meta/recipes-devtools/rust/files/rv32-cargo-rust= ix-0.38.38-fix.patch >>> create mode 100644 meta/recipes-devtools/rust/files/rv32-cargo-rust= ix-0.38.40-fix.patch >>> rename meta/recipes-devtools/rust/{libstd-rs_1.84.1.bb =3D> libstd-= rs_1.85.0.bb} (88%) >>> rename meta/recipes-devtools/rust/{rust-cross-canadian_1.84.1.bb =3D= > rust-cross-canadian_1.85.0.bb} (100%) >>> rename meta/recipes-devtools/rust/{rust-llvm_1.84.1.bb =3D> rust-ll= vm_1.85.0.bb} (100%) >>> rename meta/recipes-devtools/rust/{rust_1.84.1.bb =3D> rust_1.85.0.= bb} (99%) >>> >>> diff --git a/meta/classes-recipe/rust-target-config.bbclass b/meta/cl= asses-recipe/rust-target-config.bbclass >>> index 67aaa56bac..c04940ce54 100644 >>> --- a/meta/classes-recipe/rust-target-config.bbclass >>> +++ b/meta/classes-recipe/rust-target-config.bbclass >>> @@ -391,6 +391,11 @@ def rust_gen_target(d, thing, wd, arch): >>> tspec['cpu'] =3D cpu >>> if features !=3D "": >>> tspec['features'] =3D features >>> + fpu =3D d.getVar('TARGET_FPU') >>> + if fpu =3D=3D "soft": >>> + tspec['llvm-floatabi'] =3D "soft" >>> + elif fpu =3D=3D "hard": >>> + tspec['llvm-floatabi'] =3D "hard" >> Thanks for this. I see there are three ABIs for arm w.r.t floats soft. >> hard and softfp you can perhaps get this value >> from TUNE_CCARGS_MFLOAT, maybe in a follow up please check the third >> case as well and we might need to add >> it as well > > Yash: > > any update about this comment from Khem? > > libstd-rs is still failing to build when TARGET_FPU is set to softfp I checked the value from TUNE_CCARGS_MFLOAT and it wasn't set to soft=20 when using qemuarmv5 as the MACHINE. Thus, we need to use TARGET_FPU. For softfp, I didn't find any target supported/valid using oe-core config. Could you share the config for setting softfp for arm target? I will add and check a condition for softfp setting as well with that. Regards, Yash > > error: failed to run `rustc` to learn about target-specific information > > Caused by: > process didn't exit successfully: `rustc - --crate-name ___ > --print=3Dfile-names ... -Cembed-bitcode=3Dyes > -Zforce-unstable-if-unmarked -C link-arg=3D-Wl,-soname,libstd.so > --target armv7-oemllib32-linux-gnueabi --crate-type bin --crate-type > rlib --crate-type dylib --crate-type cdylib --crate-type staticlib > --crate-type proc-macro --print=3Dsysroot --print=3Dsplit-debuginfo > --print=3Dcrate-name --print=3Dcfg` (exit status: 1) > --- stderr > error: Error loading target specification: ARM targets must specify > their float ABI. Run `rustc --print target-list` for a list of > built-in targets > > it's set to softfp from TUNE_CCARGS_MFLOAT > > # $TUNE_CCARGS_MFLOAT > # set oe-core/meta/conf/machine/include/arm/feature-arm-vfp.inc:14 > # "${@ bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', > 'hard', 'softfp', d) if (d.getVar('TUNE_CCARGS_MFPU') !=3D '' or > bb.utils.contains('TUNE_FEATURES', 'simd', True, False, d)) else '' }" > TUNE_CCARGS_MFLOAT=3D"softfp" > > # $TARGET_FPU [3 operations] > # set oe-core/meta/conf/machine/include/arm/arch-arm.inc:16 > #"${@d.getVar('TUNE_CCARGS_MFLOAT') or 'soft'}" > # set oe-core/meta/conf/machine/include/arm/arch-arm64.inc:39 > #"${@bb.utils.contains('TUNE_FEATURES', 'aarch64', '${TARGET_FPU_64}',=20 > '${TARGET_FPU_32}', d)}" > # set oe-core/meta/conf/documentation.conf:417 > # [doc] "Specifies the method for handling FPU code. For FPU-less > targets, which include most ARM CPUs, the variable must be set to > 'soft'. If not, the kernel emulation gets used, which results in a > performance penalty." > # pre-expansion value: > #"${@bb.utils.contains('TUNE_FEATURES', 'aarch64', '${TARGET_FPU_64}',=20 > '${TARGET_FPU_32}', d)}" > TARGET_FPU=3D"softfp" --------------n0nDd820jB77iOoo4eOY0Y6N Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by mx0a-0064b401.pphosted.com id 53F2IPgY007792


On 11-04-2025 13:08, Martin Jansa wrote:
CAUTION: This email comes fr=
om a non Wind River email account!
Do not click links or open attachments unless you recognize the sender an=
d know the content is safe.

On Mon, Mar 31, 2025 at 6:47=E2=80=AFPM Khem Raj via lists.openembedded.o=
rg
<raj.khem=3Dgmail.com@lists.openembedded.org>=
 wrote:

On Sun, Mar 30, 2025 at 10:54=E2=80=AFPM Yash Shinde via
lists.openembedded.org
<Yash.Shinde=3Dwindriver.com@lists.openem=
bedded.org> wrote:

From: Yash Shinde <Yash.Shinde@windriver.com>

Rust stable version updated to 1.85.0
https://blog.rust-lang.org/2025/02/20/Rust-1.85=
.0.html

Some of the major updates:

- Update LIC_FILES_CHKSUM in libstd-rs and rust recipes.
License-Update: Unicode license text is updated to Unicode-3.0 License.
https://github.com/r=
ust-lang/rust/commit/6d2a3e9786ec43a0e0af20386e7046328296ac86

- Pass '-Zforce-unstable-if-unmarked' to RUSTFLAGS in libstd-rs.bb
Fix: https://github.com/rust-l=
ang/rust/issues/133857#issuecomment-2526341227

- Downgrade bootstrap cc version causing bootstrap to fail on custom targ=
ets. (Backported from v1.85.1)
Fix: ht=
tps://github.com/rust-lang/rust/pull/137460/commits/e4ca11f87ffca8c63aa56=
d45b46e62b6acc58bd7

- Explicitly set float ABI for all ARM 32 bits targets.
Fix: https://github.=
com/rust-lang/rust/commit/a51fefcaab835b310e2e26005b50982d0049d905

- Rust v1.85.0 tarball doesn't ship gcc tree.
Drop "remove_gcc_directory" postfunc which removed it and preve=
nted the bloat.
Fix: https://github.=
com/rust-lang/rust/commit/13c3f9b9498013837782b46120085ea19ca75518

Adapted the patch changes with v1.85.0:
  repro-issue-fix-with-cc-crate-hashmap.patch
  revert-link-std-statically-in-rustc_driver-feature.patch
  rust-oe-selftest.patch
  rv32-cargo-rustix-0.38.40-fix.patch

Dropped patches:
  fix-tidy-check-failure.patch since it's merged with v1.85.0.

Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
---
 .../classes-recipe/rust-target-config.bbclass |   5 +
 meta/conf/distro/include/tcmode-default.inc   |   2 +-
 .../rust/{cargo_1.84.1.bb =3D> cargo_1.85.0.bb} |   0
 .../rust/files/downgrade-bootstrap-cc.patch   |  41 +++
 .../rust/files/fix-tidy-check-failure.patch   |  19 --
 ...epro-issue-fix-with-cc-crate-hashmap.patch |  60 ++++-
 ...d-statically-in-rustc_driver-feature.patch |   4 +-
 .../rust/files/rust-oe-selftest.patch         |  46 ++--
 .../files/rv32-cargo-rustix-0.38.38-fix.patch | 236 ------------------
 .../files/rv32-cargo-rustix-0.38.40-fix.patch | 236 ++++++++++++++++++
 ...ibstd-rs_1.84.1.bb =3D> libstd-rs_1.85.0.bb} |   4 +-
 ....84.1.bb =3D> rust-cross-canadian_1.85.0.bb} |   0
 ...ust-llvm_1.84.1.bb =3D> rust-llvm_1.85.0.bb} |   0
 meta/recipes-devtools/rust/rust-snapshot.inc  |  81 +++---
 meta/recipes-devtools/rust/rust-source.inc    |  23 +-
 .../rust/{rust_1.84.1.bb =3D> rust_1.85.0.bb}   |   2 +-
 16 files changed, 417 insertions(+), 342 deletions(-)
 rename meta/recipes-devtools/rust/{cargo_1.84.1.bb =3D> cargo_1.85.0.=
bb} (100%)
 create mode 100644 meta/recipes-devtools/rust/files/downgrade-bootstrap-=
cc.patch
 delete mode 100644 meta/recipes-devtools/rust/files/fix-tidy-check-failu=
re.patch
 delete mode 100644 meta/recipes-devtools/rust/files/rv32-cargo-rustix-0.=
38.38-fix.patch
 create mode 100644 meta/recipes-devtools/rust/files/rv32-cargo-rustix-0.=
38.40-fix.patch
 rename meta/recipes-devtools/rust/{libstd-rs_1.84.1.bb =3D> libstd-rs=
_1.85.0.bb} (88%)
 rename meta/recipes-devtools/rust/{rust-cross-canadian_1.84.1.bb =3D>=
 rust-cross-canadian_1.85.0.bb} (100%)
 rename meta/recipes-devtools/rust/{rust-llvm_1.84.1.bb =3D> rust-llvm=
_1.85.0.bb} (100%)
 rename meta/recipes-devtools/rust/{rust_1.84.1.bb =3D> rust_1.85.0.bb=
} (99%)

diff --git a/meta/classes-recipe/rust-target-config.bbclass b/meta/classe=
s-recipe/rust-target-config.bbclass
index 67aaa56bac..c04940ce54 100644
--- a/meta/classes-recipe/rust-target-config.bbclass
+++ b/meta/classes-recipe/rust-target-config.bbclass
@@ -391,6 +391,11 @@ def rust_gen_target(d, thing, wd, arch):
     tspec['cpu'] =3D cpu
     if features !=3D "":
         tspec['features'] =3D features
+    fpu =3D d.getVar('TARGET_FPU')
+    if fpu =3D=3D "soft":
+        tspec['llvm-floatabi'] =3D "soft"
+    elif fpu =3D=3D "hard":
+        tspec['llvm-floatabi'] =3D "hard"

Thanks for this. I see there are three ABIs for arm w.r.t floats soft.
hard and softfp you can perhaps get this value
from TUNE_CCARGS_MFLOAT, maybe in a follow up please check the third
case as well and we might need to add
it as well


Yash:

any update about this comment from Khem?

libstd-rs is still failing to build when TARGET_FPU is set to softfp

I checked the value from TUN= E_CCARGS_MFLOAT and it wasn't set to soft when using=20 qemuarmv5 as the MACHINE. Thus, we need to use TARGET_FPU.
For softfp, I didn't find any target supported/valid using oe-core config.
Could you share the config for setting softfp for arm target?

I will add and check a condition for softfp setting as well with that.

Regards,
Yash


error: failed to run `rustc` to learn about target-specific information

Caused by:
  process didn't exit successfully: `rustc - --crate-name ___
--print=3Dfile-names ... -Cembed-bitcode=3Dyes
-Zforce-unstable-if-unmarked  -C link-arg=3D-Wl,-soname,libstd.so
--target armv7-oemllib32-linux-gnueabi --crate-type bin --crate-type
rlib --crate-type dylib --crate-type cdylib --crate-type staticlib
--crate-type proc-macro --print=3Dsysroot --print=3Dsplit-debuginfo
--print=3Dcrate-name --print=3Dcfg` (exit status: 1)
  --- stderr
  error: Error loading target specification: ARM targets must specify
their float ABI. Run `rustc --print target-list` for a list of
built-in targets

it's set to softfp from TUNE_CCARGS_MFLOAT

# $TUNE_CCARGS_MFLOAT
#   set oe-core/meta/conf/machine/include/arm/feature-arm-vfp.inc:14
#     "${@ bb.utils.contains('TUNE_FEATURES', 'callconvention-hard',
'hard', 'softfp', d) if (d.getVar('TUNE_CCARGS_MFPU') !=3D '' or
bb.utils.contains('TUNE_FEATURES', 'simd', True, False, d)) else '' }&quo=
t;
TUNE_CCARGS_MFLOAT=3D"softfp"

# $TARGET_FPU [3 operations]
#   set oe-core/meta/conf/machine/include/arm/arch-arm.inc:16
#     "${@d.getVar('TUNE_CCARGS_MFLOAT') or 'so=
ft'}"
#   set oe-core/meta/conf/machine/include/arm/arch-arm64.inc:39
#     =
"${@bb.utils.contains('TUNE_FEATURES', 'aarch64',
'${TARGET_FPU_64}', '${TARGET_FPU_32}', d)}"
#   set oe-core/meta/conf/documentation.conf:417
#     [doc] "Specifies the method for handling FPU code. For FPU-les=
s
targets, which include most ARM CPUs, the variable must be set to
'soft'. If not, the kernel emulation gets used, which results in a
performance penalty."
# pre-expansion value:
#   &q=
uot;${@bb.utils.contains('TUNE_FEATURES', 'aarch64',
'${TARGET_FPU_64}', '${TARGET_FPU_32}', d)}"
TARGET_FPU=3D"softfp"
--------------n0nDd820jB77iOoo4eOY0Y6N--