[PATCH 0/4] tests/tcg/meson.build: detect additional cross compilers

[PATCH 0/4] tests/tcg/meson.build: detect additional cross compilers

[Pierrick Bouvier]

This series solves:
- detect and choose host compiler for host target on fedora
- detect and choose cross compilers install with homebrew on macos

It adds a new cc_alt list field to test suite, to specify one or several cross
compilers to try. If none is found, or none works, we fallback to containers as
usual.

Tested on debian, macos, fedora, archlinux for x86 and aarch64 arch.

Based-on: 20260923185725.863311-1-pierrick.bouvier@oss.qualcomm.com
"[PATCH v2 0/6] tests/tcg: use x86_64 cross containers on all host architectures"

Pierrick Bouvier (4):
  tests/tcg/meson.build: report correct cc in summary
  tests/tcg/meson.build: introduce cc_alt (alternative cross compiler)
  tests/tcg: add alternative cross-compilers for fedora
  tests/tcg: add alternative cross-compilers for macos (homebrew)

 .gitlab-ci.d/macos.yml               |  7 ----
 tests/tcg/aarch64/meson.build        |  2 ++
 tests/tcg/aarch64/system/meson.build |  1 +
 tests/tcg/aarch64_be/meson.build     |  1 +
 tests/tcg/arm/system/meson.build     |  1 +
 tests/tcg/i386/system/meson.build    |  1 +
 tests/tcg/meson.build                | 53 ++++++++++++++++------------
 tests/tcg/ppc64le/meson.build        |  1 +
 tests/tcg/riscv64/meson.build        |  2 ++
 tests/tcg/riscv64/system/meson.build |  1 +
 tests/tcg/s390x/meson.build          |  2 ++
 tests/tcg/s390x/system/meson.build   |  1 +
 tests/tcg/x86_64/meson.build         |  2 ++
 tests/tcg/x86_64/system/meson.build  |  1 +
 14 files changed, 47 insertions(+), 29 deletions(-)

-- 
2.43.0

[PATCH 1/4] tests/tcg/meson.build: report correct cc in summary

[Pierrick Bouvier]

Summary didn't consider that cc could have been set using --cross-cc*
options, and was wrongly reporting default cc declared in test suite.
Fix that by reporting path of compiler found.

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
---
 tests/tcg/meson.build | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tests/tcg/meson.build b/tests/tcg/meson.build
index 474e4d8f6e3..0006d192cab 100644
--- a/tests/tcg/meson.build
+++ b/tests/tcg/meson.build
@@ -292,9 +292,10 @@ foreach target, plan: tcg_tests
 
   summary_cc = false
   if has_cc
-    summary_cc = plan['cc']
-    if not cc_from_system
-      summary_cc += ' (from \'qemu/' + plan['cc_dockerfile'] + '\' container)'
+    if cc_from_system
+      summary_cc = cc.full_path()
+    else
+      summary_cc = plan['cc'] + ' (from \'qemu/' + plan['cc_dockerfile'] + '\' container)'
     endif
   endif
   tcg_tests_summary += {'cc for ' + target: summary_cc}
-- 
2.43.0

Re: [PATCH 1/4] tests/tcg/meson.build: report correct cc in summary

[Daniel P. Berrangé]

On Thu, Sep 24, 2026 at 09:39:39PM +0000, Pierrick Bouvier wrote:
> Summary didn't consider that cc could have been set using --cross-cc*
> options, and was wrongly reporting default cc declared in test suite.
> Fix that by reporting path of compiler found.
> 
> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
> ---
>  tests/tcg/meson.build | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/tests/tcg/meson.build b/tests/tcg/meson.build
> index 474e4d8f6e3..0006d192cab 100644
> --- a/tests/tcg/meson.build
> +++ b/tests/tcg/meson.build
> @@ -292,9 +292,10 @@ foreach target, plan: tcg_tests
>  
>    summary_cc = false
>    if has_cc
> -    summary_cc = plan['cc']
> -    if not cc_from_system
> -      summary_cc += ' (from \'qemu/' + plan['cc_dockerfile'] + '\' container)'
> +    if cc_from_system
> +      summary_cc = cc.full_path()
> +    else
> +      summary_cc = plan['cc'] + ' (from \'qemu/' + plan['cc_dockerfile'] + '\' container)'
>      endif
>    endif
>    tcg_tests_summary += {'cc for ' + target: summary_cc}

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

With regards,
Daniel
-- 
|: https://berrange.com       ~~        https://hachyderm.io/@berrange :|
|: https://libvirt.org          ~~          https://entangle-photo.org :|
|: https://pixelfed.art/berrange   ~~    https://fstop138.berrange.com :|

[PATCH 2/4] tests/tcg/meson.build: introduce cc_alt (alternative cross compiler)

[Pierrick Bouvier]

This allows each target to provide an additional list of cross
compilers to check. With this, we can detect default cc for common
setups (debian/fedora/macos) without user having to provide a
--cross-cc-* option.

In addition, it allows us to pick up host compilers for various hosts.
(debian and archlinux have $arch-linux-gnu-gcc installed
with gcc package by default, but not fedora).

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
---
 tests/tcg/meson.build | 46 +++++++++++++++++++++++++------------------
 1 file changed, 27 insertions(+), 19 deletions(-)

diff --git a/tests/tcg/meson.build b/tests/tcg/meson.build
index 0006d192cab..59ab73e1d10 100644
--- a/tests/tcg/meson.build
+++ b/tests/tcg/meson.build
@@ -21,6 +21,7 @@ tcg_tests = {}
 # {
 #   'name_of_target': {
 #     'cc': 'cross_compiler',
+#     'cc_alt': ['list of alternative cross compilers', ...]
 #     'cc_dockerfile': 'name_of_dockerfile',
 #     'cc_feat_cflags': {
 #       'name': ['feature cflags'],
@@ -210,7 +211,7 @@ foreach target, plan: tcg_tests
 
   # return a clear error if user misspell a target entry
   foreach key, _ : plan
-    allowed = ['cc', 'cc_dockerfile', 'cc_feat_cflags',
+    allowed = ['cc', 'cc_alt', 'cc_dockerfile', 'cc_feat_cflags',
                'folder', 'gdb_arch', 'gdb_feat_version', 'qemu', 'tests']
     if key not in allowed
       error('unknown tcg test plan entry \'' + key + '\' for target ' + target +
@@ -218,15 +219,18 @@ foreach target, plan: tcg_tests
     endif
   endforeach
 
-  cc = find_program(plan['cc'], required : false)
+  cc_list = [plan['cc']]
+  if 'cc_alt' in plan
+    cc_list += plan['cc_alt']
+  endif
+
   cc_cflags = []
-
   check_flags = []
   check_required = false
   cross_cc = get_option('tcg_tests_cross_cc_' + cc_arch)
   if cross_cc != ''
-    # we make sure cross cc exists
-    cc = find_program(cross_cc, required: true)
+    # prepend requested cross_cc
+    cc_list = [cross_cc, cc_list]
     check_required = true
   endif
   cross_cflags = get_option('tcg_tests_cross_cflags_' + cc_arch)
@@ -236,22 +240,26 @@ foreach target, plan: tcg_tests
     check_flags = cc_cflags
     check_required = true
   endif
-
-  cc_from_system = cc.found()
-  has_cc = cc.found()
-  if has_cc
-    if target.endswith('softmmu')
-      check_flags += ['-nostdlib', '-ffreestanding', '-r']
-    else
-      check_flags += ['-static']
-    endif
-
-    cmd = run_command([cc, files('test_cc.c'), check_flags, '-o', '/dev/null'],
-                      check: check_required)
-    has_cc = cmd.returncode() == 0
-    cc_from_system = has_cc
+  if target.endswith('softmmu')
+    check_flags += ['-nostdlib', '-ffreestanding', '-r']
+  else
+    check_flags += ['-static']
   endif
 
+  has_cc = false
+  foreach possible_cc: cc_list
+    cc = find_program(possible_cc, required: check_required)
+    if cc.found()
+      cmd = run_command([cc, files('test_cc.c'), check_flags, '-o', '/dev/null'],
+                        check: check_required)
+      if cmd.returncode() == 0
+        has_cc = true
+        break
+      endif
+    endif
+  endforeach
+
+  cc_from_system = has_cc
   build_test_depends = []
   build_test_depend_files = []
 
-- 
2.43.0

Re: [PATCH 2/4] tests/tcg/meson.build: introduce cc_alt (alternative cross compiler)

[Daniel P. Berrangé]

On Thu, Sep 24, 2026 at 09:39:40PM +0000, Pierrick Bouvier wrote:
> This allows each target to provide an additional list of cross
> compilers to check. With this, we can detect default cc for common
> setups (debian/fedora/macos) without user having to provide a
> --cross-cc-* option.
> 
> In addition, it allows us to pick up host compilers for various hosts.
> (debian and archlinux have $arch-linux-gnu-gcc installed
> with gcc package by default, but not fedora).
> 
> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
> ---
>  tests/tcg/meson.build | 46 +++++++++++++++++++++++++------------------
>  1 file changed, 27 insertions(+), 19 deletions(-)
> 
> diff --git a/tests/tcg/meson.build b/tests/tcg/meson.build
> index 0006d192cab..59ab73e1d10 100644
> --- a/tests/tcg/meson.build
> +++ b/tests/tcg/meson.build
> @@ -21,6 +21,7 @@ tcg_tests = {}
>  # {
>  #   'name_of_target': {
>  #     'cc': 'cross_compiler',
> +#     'cc_alt': ['list of alternative cross compilers', ...]
>  #     'cc_dockerfile': 'name_of_dockerfile',
>  #     'cc_feat_cflags': {
>  #       'name': ['feature cflags'],
> @@ -210,7 +211,7 @@ foreach target, plan: tcg_tests
>  
>    # return a clear error if user misspell a target entry
>    foreach key, _ : plan
> -    allowed = ['cc', 'cc_dockerfile', 'cc_feat_cflags',
> +    allowed = ['cc', 'cc_alt', 'cc_dockerfile', 'cc_feat_cflags',
>                 'folder', 'gdb_arch', 'gdb_feat_version', 'qemu', 'tests']
>      if key not in allowed
>        error('unknown tcg test plan entry \'' + key + '\' for target ' + target +
> @@ -218,15 +219,18 @@ foreach target, plan: tcg_tests
>      endif
>    endforeach
>  
> -  cc = find_program(plan['cc'], required : false)
> +  cc_list = [plan['cc']]
> +  if 'cc_alt' in plan
> +    cc_list += plan['cc_alt']
> +  endif

If you're combining these into a list anyway, why not just
have 'cc' be a list of CC names to begin with and not bother
with a separate 'cc_alt' field ?

> +
>    cc_cflags = []
> -
>    check_flags = []
>    check_required = false
>    cross_cc = get_option('tcg_tests_cross_cc_' + cc_arch)
>    if cross_cc != ''
> -    # we make sure cross cc exists
> -    cc = find_program(cross_cc, required: true)
> +    # prepend requested cross_cc
> +    cc_list = [cross_cc, cc_list]
>      check_required = true
>    endif
>    cross_cflags = get_option('tcg_tests_cross_cflags_' + cc_arch)
> @@ -236,22 +240,26 @@ foreach target, plan: tcg_tests
>      check_flags = cc_cflags
>      check_required = true
>    endif
> -
> -  cc_from_system = cc.found()
> -  has_cc = cc.found()
> -  if has_cc
> -    if target.endswith('softmmu')
> -      check_flags += ['-nostdlib', '-ffreestanding', '-r']
> -    else
> -      check_flags += ['-static']
> -    endif
> -
> -    cmd = run_command([cc, files('test_cc.c'), check_flags, '-o', '/dev/null'],
> -                      check: check_required)
> -    has_cc = cmd.returncode() == 0
> -    cc_from_system = has_cc
> +  if target.endswith('softmmu')
> +    check_flags += ['-nostdlib', '-ffreestanding', '-r']
> +  else
> +    check_flags += ['-static']
>    endif
>  
> +  has_cc = false
> +  foreach possible_cc: cc_list
> +    cc = find_program(possible_cc, required: check_required)
> +    if cc.found()
> +      cmd = run_command([cc, files('test_cc.c'), check_flags, '-o', '/dev/null'],
> +                        check: check_required)
> +      if cmd.returncode() == 0
> +        has_cc = true
> +        break
> +      endif
> +    endif
> +  endforeach
> +
> +  cc_from_system = has_cc
>    build_test_depends = []
>    build_test_depend_files = []
>  
> -- 
> 2.43.0
> 
> 

With regards,
Daniel
-- 
|: https://berrange.com       ~~        https://hachyderm.io/@berrange :|
|: https://libvirt.org          ~~          https://entangle-photo.org :|
|: https://pixelfed.art/berrange   ~~    https://fstop138.berrange.com :|

Re: [PATCH 2/4] tests/tcg/meson.build: introduce cc_alt (alternative cross compiler)

[Pierrick Bouvier]

On 9/25/2026 2:38 AM, Daniel P. Berrangé wrote:
> On Thu, Sep 24, 2026 at 09:39:40PM +0000, Pierrick Bouvier wrote:
>> This allows each target to provide an additional list of cross
>> compilers to check. With this, we can detect default cc for common
>> setups (debian/fedora/macos) without user having to provide a
>> --cross-cc-* option.
>>
>> In addition, it allows us to pick up host compilers for various hosts.
>> (debian and archlinux have $arch-linux-gnu-gcc installed
>> with gcc package by default, but not fedora).
>>
>> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
>> ---
>>  tests/tcg/meson.build | 46 +++++++++++++++++++++++++------------------
>>  1 file changed, 27 insertions(+), 19 deletions(-)
>>
>> diff --git a/tests/tcg/meson.build b/tests/tcg/meson.build
>> index 0006d192cab..59ab73e1d10 100644
>> --- a/tests/tcg/meson.build
>> +++ b/tests/tcg/meson.build
>> @@ -21,6 +21,7 @@ tcg_tests = {}
>>  # {
>>  #   'name_of_target': {
>>  #     'cc': 'cross_compiler',
>> +#     'cc_alt': ['list of alternative cross compilers', ...]
>>  #     'cc_dockerfile': 'name_of_dockerfile',
>>  #     'cc_feat_cflags': {
>>  #       'name': ['feature cflags'],
>> @@ -210,7 +211,7 @@ foreach target, plan: tcg_tests
>>  
>>    # return a clear error if user misspell a target entry
>>    foreach key, _ : plan
>> -    allowed = ['cc', 'cc_dockerfile', 'cc_feat_cflags',
>> +    allowed = ['cc', 'cc_alt', 'cc_dockerfile', 'cc_feat_cflags',
>>                 'folder', 'gdb_arch', 'gdb_feat_version', 'qemu', 'tests']
>>      if key not in allowed
>>        error('unknown tcg test plan entry \'' + key + '\' for target ' + target +
>> @@ -218,15 +219,18 @@ foreach target, plan: tcg_tests
>>      endif
>>    endforeach
>>  
>> -  cc = find_program(plan['cc'], required : false)
>> +  cc_list = [plan['cc']]
>> +  if 'cc_alt' in plan
>> +    cc_list += plan['cc_alt']
>> +  endif
> 
> If you're combining these into a list anyway, why not just
> have 'cc' be a list of CC names to begin with and not bother
> with a separate 'cc_alt' field ?
> 

It's just a semantic choice, since cc has to be provided in docker
container, while cc_alt do not. I can add a comment if it makes sense
for you with this explanation.

> With regards,
> Daniel

Re: [PATCH 2/4] tests/tcg/meson.build: introduce cc_alt (alternative cross compiler)

[Daniel P. Berrangé]

On Fri, Sep 25, 2026 at 08:17:04AM -0700, Pierrick Bouvier wrote:
> On 9/25/2026 2:38 AM, Daniel P. Berrangé wrote:
> > On Thu, Sep 24, 2026 at 09:39:40PM +0000, Pierrick Bouvier wrote:
> >> This allows each target to provide an additional list of cross
> >> compilers to check. With this, we can detect default cc for common
> >> setups (debian/fedora/macos) without user having to provide a
> >> --cross-cc-* option.
> >>
> >> In addition, it allows us to pick up host compilers for various hosts.
> >> (debian and archlinux have $arch-linux-gnu-gcc installed
> >> with gcc package by default, but not fedora).
> >>
> >> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
> >> ---
> >>  tests/tcg/meson.build | 46 +++++++++++++++++++++++++------------------
> >>  1 file changed, 27 insertions(+), 19 deletions(-)
> >>
> >> diff --git a/tests/tcg/meson.build b/tests/tcg/meson.build
> >> index 0006d192cab..59ab73e1d10 100644
> >> --- a/tests/tcg/meson.build
> >> +++ b/tests/tcg/meson.build
> >> @@ -21,6 +21,7 @@ tcg_tests = {}
> >>  # {
> >>  #   'name_of_target': {
> >>  #     'cc': 'cross_compiler',
> >> +#     'cc_alt': ['list of alternative cross compilers', ...]
> >>  #     'cc_dockerfile': 'name_of_dockerfile',
> >>  #     'cc_feat_cflags': {
> >>  #       'name': ['feature cflags'],
> >> @@ -210,7 +211,7 @@ foreach target, plan: tcg_tests
> >>  
> >>    # return a clear error if user misspell a target entry
> >>    foreach key, _ : plan
> >> -    allowed = ['cc', 'cc_dockerfile', 'cc_feat_cflags',
> >> +    allowed = ['cc', 'cc_alt', 'cc_dockerfile', 'cc_feat_cflags',
> >>                 'folder', 'gdb_arch', 'gdb_feat_version', 'qemu', 'tests']
> >>      if key not in allowed
> >>        error('unknown tcg test plan entry \'' + key + '\' for target ' + target +
> >> @@ -218,15 +219,18 @@ foreach target, plan: tcg_tests
> >>      endif
> >>    endforeach
> >>  
> >> -  cc = find_program(plan['cc'], required : false)
> >> +  cc_list = [plan['cc']]
> >> +  if 'cc_alt' in plan
> >> +    cc_list += plan['cc_alt']
> >> +  endif
> > 
> > If you're combining these into a list anyway, why not just
> > have 'cc' be a list of CC names to begin with and not bother
> > with a separate 'cc_alt' field ?
> > 
> 
> It's just a semantic choice, since cc has to be provided in docker
> container, while cc_alt do not. I can add a comment if it makes sense
> for you with this explanation.

Ok, I don't mind, was just wondering if there was some reason I
was missing for the separation.


With regards,
Daniel
-- 
|: https://berrange.com       ~~        https://hachyderm.io/@berrange :|
|: https://libvirt.org          ~~          https://entangle-photo.org :|
|: https://pixelfed.art/berrange   ~~    https://fstop138.berrange.com :|

Re: [PATCH 2/4] tests/tcg/meson.build: introduce cc_alt (alternative cross compiler)

[Daniel P. Berrangé]

On Thu, Sep 24, 2026 at 09:39:40PM +0000, Pierrick Bouvier wrote:
> This allows each target to provide an additional list of cross
> compilers to check. With this, we can detect default cc for common
> setups (debian/fedora/macos) without user having to provide a
> --cross-cc-* option.
> 
> In addition, it allows us to pick up host compilers for various hosts.
> (debian and archlinux have $arch-linux-gnu-gcc installed
> with gcc package by default, but not fedora).
> 
> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
> ---
>  tests/tcg/meson.build | 46 +++++++++++++++++++++++++------------------
>  1 file changed, 27 insertions(+), 19 deletions(-)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>


With regards,
Daniel
-- 
|: https://berrange.com       ~~        https://hachyderm.io/@berrange :|
|: https://libvirt.org          ~~          https://entangle-photo.org :|
|: https://pixelfed.art/berrange   ~~    https://fstop138.berrange.com :|

[PATCH 3/4] tests/tcg: add alternative cross-compilers for fedora

[Pierrick Bouvier]

This allows to pick host compiler automatically on fedora, as those
binaries are installed with 'gcc' package.

This covers all host arch supported to this day:
https://fedoraproject.org/wiki/Architectures
- x86_64
- aarch64
- ppc64le
- riscv64
- s390x
Note: QEMU and Fedora don't support 32-bit hosts anymore.

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
---
 tests/tcg/aarch64/meson.build        | 2 ++
 tests/tcg/aarch64/system/meson.build | 1 +
 tests/tcg/aarch64_be/meson.build     | 1 +
 tests/tcg/ppc64le/meson.build        | 1 +
 tests/tcg/riscv64/meson.build        | 2 ++
 tests/tcg/riscv64/system/meson.build | 1 +
 tests/tcg/s390x/meson.build          | 2 ++
 tests/tcg/s390x/system/meson.build   | 1 +
 tests/tcg/x86_64/meson.build         | 2 ++
 tests/tcg/x86_64/system/meson.build  | 1 +
 10 files changed, 14 insertions(+)

diff --git a/tests/tcg/aarch64/meson.build b/tests/tcg/aarch64/meson.build
index cc2c59fb4b6..1cec335df04 100644
--- a/tests/tcg/aarch64/meson.build
+++ b/tests/tcg/aarch64/meson.build
@@ -1,4 +1,5 @@
 cc = 'aarch64-linux-gnu-gcc'
+cc_alt = ['aarch64-redhat-linux-gcc']
 cc_dockerfile = 'debian-all-test-cross'
 
 cc_feat_cflags = {
@@ -196,6 +197,7 @@ if 'qemu-aarch64' in emulators
   tcg_tests += {
     'aarch64-linux-user': {
       'cc': cc,
+      'cc_alt': cc_alt,
       'cc_dockerfile': cc_dockerfile,
       'cc_feat_cflags': cc_feat_cflags,
       'folder': 'aarch64',
diff --git a/tests/tcg/aarch64/system/meson.build b/tests/tcg/aarch64/system/meson.build
index 6ba35a9f722..fb3b33861ea 100644
--- a/tests/tcg/aarch64/system/meson.build
+++ b/tests/tcg/aarch64/system/meson.build
@@ -96,6 +96,7 @@ if 'qemu-system-aarch64' in emulators
   tcg_tests += {
     'aarch64-softmmu': {
       'cc': cc,
+      'cc_alt': cc_alt,
       'cc_dockerfile': cc_dockerfile,
       'cc_feat_cflags': cc_feat_cflags,
       'folder': 'aarch64/system',
diff --git a/tests/tcg/aarch64_be/meson.build b/tests/tcg/aarch64_be/meson.build
index e45a49ec2da..509408de8e7 100644
--- a/tests/tcg/aarch64_be/meson.build
+++ b/tests/tcg/aarch64_be/meson.build
@@ -10,6 +10,7 @@ if 'qemu-aarch64_be' in emulators
   tcg_tests += {
     'aarch64_be-linux-user': {
       'cc': 'aarch64-linux-gnu-gcc',
+      'cc_alt': ['aarch64-redhat-linux-gcc'],
       'cc_dockerfile': 'debian-all-test-cross',
       'cc_feat_cflags': cc_feat_cflags,
       'folder': 'aarch64_be',
diff --git a/tests/tcg/ppc64le/meson.build b/tests/tcg/ppc64le/meson.build
index a0f3e62e4d3..9f386287e7a 100644
--- a/tests/tcg/ppc64le/meson.build
+++ b/tests/tcg/ppc64le/meson.build
@@ -2,6 +2,7 @@ if 'qemu-ppc64le' in emulators
   tcg_tests += {
     'ppc64le-linux-user': {
       'cc': 'powerpc64le-linux-gnu-gcc',
+      'cc_alt': ['ppc64le-redhat-linux-gcc'],
       'cc_dockerfile': 'debian-all-test-cross',
       'cc_feat_cflags': cc_feat_cflags,
       'folder': 'ppc64le',
diff --git a/tests/tcg/riscv64/meson.build b/tests/tcg/riscv64/meson.build
index 5ee20a1e98d..91c840b0058 100644
--- a/tests/tcg/riscv64/meson.build
+++ b/tests/tcg/riscv64/meson.build
@@ -1,4 +1,5 @@
 cc = 'riscv64-linux-gnu-gcc'
+cc_alt = ['riscv64-redhat-linux-gnu-gcc']
 cc_dockerfile = 'debian-all-test-cross'
 
 subdir('system')
@@ -26,6 +27,7 @@ if 'qemu-riscv64' in emulators
   tcg_tests += {
     'riscv64-linux-user': {
       'cc': cc,
+      'cc_alt': cc_alt,
       'cc_dockerfile': cc_dockerfile,
       'folder': 'riscv64',
       'gdb_arch': 'riscv64',
diff --git a/tests/tcg/riscv64/system/meson.build b/tests/tcg/riscv64/system/meson.build
index 87c3f9f11ce..c87e3eee1ad 100644
--- a/tests/tcg/riscv64/system/meson.build
+++ b/tests/tcg/riscv64/system/meson.build
@@ -65,6 +65,7 @@ if 'qemu-system-riscv64' in emulators
   tcg_tests += {
     'riscv64-softmmu': {
       'cc': cc,
+      'cc_alt': cc_alt,
       'cc_dockerfile': cc_dockerfile,
       'folder': 'riscv64',
       'gdb_arch': 'riscv64',
diff --git a/tests/tcg/s390x/meson.build b/tests/tcg/s390x/meson.build
index 1f9aa57fc73..f2328d9e5cf 100644
--- a/tests/tcg/s390x/meson.build
+++ b/tests/tcg/s390x/meson.build
@@ -1,4 +1,5 @@
 cc = 's390x-linux-gnu-gcc'
+cc_alt = ['s390x-redhat-linux-gcc']
 cc_dockerfile = 'debian-all-test-cross'
 
 cc_feat_cflags = {
@@ -140,6 +141,7 @@ if 'qemu-s390x' in emulators
   tcg_tests += {
     's390x-linux-user': {
       'cc': cc,
+      'cc_alt': cc_alt,
       'cc_dockerfile': cc_dockerfile,
       'cc_feat_cflags': cc_feat_cflags,
       'folder': 's390x',
diff --git a/tests/tcg/s390x/system/meson.build b/tests/tcg/s390x/system/meson.build
index ef19c4831fd..359d124cc78 100644
--- a/tests/tcg/s390x/system/meson.build
+++ b/tests/tcg/s390x/system/meson.build
@@ -82,6 +82,7 @@ if 'qemu-system-s390x' in emulators
   tcg_tests += {
     's390x-softmmu': {
       'cc': cc,
+      'cc_alt': cc_alt,
       'cc_dockerfile': cc_dockerfile,
       'cc_feat_cflags': cc_feat_cflags,
       'folder': 's390x',
diff --git a/tests/tcg/x86_64/meson.build b/tests/tcg/x86_64/meson.build
index cfeef1d969c..968fe27cfc5 100644
--- a/tests/tcg/x86_64/meson.build
+++ b/tests/tcg/x86_64/meson.build
@@ -1,4 +1,5 @@
 cc = 'x86_64-linux-gnu-gcc'
+cc_alt = ['x86_64-redhat-linux-gcc']
 cc_dockerfile = 'debian-amd64-cross'
 
 subdir('system')
@@ -72,6 +73,7 @@ if 'qemu-x86_64' in emulators
   tcg_tests += {
     'x86_64-linux-user': {
       'cc': cc,
+      'cc_alt': cc_alt,
       'cc_dockerfile': cc_dockerfile,
       'folder': 'x86_64',
       'gdb_arch': 'x86_64',
diff --git a/tests/tcg/x86_64/system/meson.build b/tests/tcg/x86_64/system/meson.build
index 43e7d7afa85..08b770d43ae 100644
--- a/tests/tcg/x86_64/system/meson.build
+++ b/tests/tcg/x86_64/system/meson.build
@@ -52,6 +52,7 @@ if 'qemu-system-x86_64' in emulators
   tcg_tests += {
     'x86_64-softmmu': {
       'cc': cc,
+      'cc_alt': cc_alt,
       'cc_dockerfile': cc_dockerfile,
       'folder': 'x86_64/system',
       'gdb_arch': 'x86_64',
-- 
2.43.0

Re: [PATCH 3/4] tests/tcg: add alternative cross-compilers for fedora

[Daniel P. Berrangé]

On Thu, Sep 24, 2026 at 09:39:41PM +0000, Pierrick Bouvier wrote:
> This allows to pick host compiler automatically on fedora, as those
> binaries are installed with 'gcc' package.
> 
> This covers all host arch supported to this day:
> https://fedoraproject.org/wiki/Architectures
> - x86_64
> - aarch64
> - ppc64le
> - riscv64
> - s390x
> Note: QEMU and Fedora don't support 32-bit hosts anymore.

Regardless of what installation arches Fedora targets, it
ships cross compilers for pretty much everything. In F44
I see the following GCC available:

gcc-aarch64-linux-gnu.x86_64         16.2.1-1.fc44 updates
gcc-alpha-linux-gnu.x86_64           16.2.1-1.fc44 updates
gcc-arc-linux-gnu.x86_64             16.2.1-1.fc44 updates
gcc-arm-linux-gnu.x86_64             16.2.1-1.fc44 updates
gcc-avr32-linux-gnu.x86_64           16.2.1-1.fc44 updates
gcc-bfin-linux-gnu.x86_64            16.2.1-1.fc44 updates
gcc-c6x-linux-gnu.x86_64             16.2.1-1.fc44 updates
gcc-frv-linux-gnu.x86_64             16.2.1-1.fc44 updates
gcc-h8300-linux-gnu.x86_64           16.2.1-1.fc44 updates
gcc-hppa-linux-gnu.x86_64            16.2.1-1.fc44 updates
gcc-hppa64-linux-gnu.x86_64          16.2.1-1.fc44 updates
gcc-ia64-linux-gnu.x86_64            16.2.1-1.fc44 updates
gcc-loongarch64-linux-gnu.x86_64     16.2.1-1.fc44 updates
gcc-m68k-linux-gnu.x86_64            16.2.1-1.fc44 updates
gcc-microblaze-linux-gnu.x86_64      16.2.1-1.fc44 updates
gcc-mips64-linux-gnu.x86_64          16.2.1-1.fc44 updates
gcc-mn10300-linux-gnu.x86_64         16.2.1-1.fc44 updates
gcc-openrisc-linux-gnu.x86_64        16.2.1-1.fc44 updates
gcc-powerpc64-linux-gnu.x86_64       16.2.1-1.fc44 updates
gcc-powerpc64le-linux-gnu.x86_64     16.2.1-1.fc44 updates
gcc-ppc64-linux-gnu.x86_64           16.2.1-1.fc44 updates
gcc-ppc64le-linux-gnu.x86_64         16.2.1-1.fc44 updates
gcc-riscv32-linux-gnu.x86_64         16.2.1-1.fc44 updates
gcc-riscv64-linux-gnu.x86_64         16.2.1-1.fc44 updates
gcc-s390x-linux-gnu.x86_64           16.2.1-1.fc44 updates
gcc-sparc64-linux-gnu.x86_64         16.2.1-1.fc44 updates
gcc-x86_64-linux-gnu.x86_64          16.2.1-1.fc44 updates
gcc-xtensa-linux-gnu.x86_64          16.2.1-1.fc44 updates


> 
> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
> ---
>  tests/tcg/aarch64/meson.build        | 2 ++
>  tests/tcg/aarch64/system/meson.build | 1 +
>  tests/tcg/aarch64_be/meson.build     | 1 +
>  tests/tcg/ppc64le/meson.build        | 1 +
>  tests/tcg/riscv64/meson.build        | 2 ++
>  tests/tcg/riscv64/system/meson.build | 1 +
>  tests/tcg/s390x/meson.build          | 2 ++
>  tests/tcg/s390x/system/meson.build   | 1 +
>  tests/tcg/x86_64/meson.build         | 2 ++
>  tests/tcg/x86_64/system/meson.build  | 1 +
>  10 files changed, 14 insertions(+)
> 
> diff --git a/tests/tcg/aarch64/meson.build b/tests/tcg/aarch64/meson.build
> index cc2c59fb4b6..1cec335df04 100644
> --- a/tests/tcg/aarch64/meson.build
> +++ b/tests/tcg/aarch64/meson.build
> @@ -1,4 +1,5 @@
>  cc = 'aarch64-linux-gnu-gcc'
> +cc_alt = ['aarch64-redhat-linux-gcc']
>  cc_dockerfile = 'debian-all-test-cross'
>  
>  cc_feat_cflags = {
> @@ -196,6 +197,7 @@ if 'qemu-aarch64' in emulators
>    tcg_tests += {
>      'aarch64-linux-user': {
>        'cc': cc,
> +      'cc_alt': cc_alt,
>        'cc_dockerfile': cc_dockerfile,
>        'cc_feat_cflags': cc_feat_cflags,
>        'folder': 'aarch64',
> diff --git a/tests/tcg/aarch64/system/meson.build b/tests/tcg/aarch64/system/meson.build
> index 6ba35a9f722..fb3b33861ea 100644
> --- a/tests/tcg/aarch64/system/meson.build
> +++ b/tests/tcg/aarch64/system/meson.build
> @@ -96,6 +96,7 @@ if 'qemu-system-aarch64' in emulators
>    tcg_tests += {
>      'aarch64-softmmu': {
>        'cc': cc,
> +      'cc_alt': cc_alt,
>        'cc_dockerfile': cc_dockerfile,
>        'cc_feat_cflags': cc_feat_cflags,
>        'folder': 'aarch64/system',
> diff --git a/tests/tcg/aarch64_be/meson.build b/tests/tcg/aarch64_be/meson.build
> index e45a49ec2da..509408de8e7 100644
> --- a/tests/tcg/aarch64_be/meson.build
> +++ b/tests/tcg/aarch64_be/meson.build
> @@ -10,6 +10,7 @@ if 'qemu-aarch64_be' in emulators
>    tcg_tests += {
>      'aarch64_be-linux-user': {
>        'cc': 'aarch64-linux-gnu-gcc',
> +      'cc_alt': ['aarch64-redhat-linux-gcc'],
>        'cc_dockerfile': 'debian-all-test-cross',
>        'cc_feat_cflags': cc_feat_cflags,
>        'folder': 'aarch64_be',
> diff --git a/tests/tcg/ppc64le/meson.build b/tests/tcg/ppc64le/meson.build
> index a0f3e62e4d3..9f386287e7a 100644
> --- a/tests/tcg/ppc64le/meson.build
> +++ b/tests/tcg/ppc64le/meson.build
> @@ -2,6 +2,7 @@ if 'qemu-ppc64le' in emulators
>    tcg_tests += {
>      'ppc64le-linux-user': {
>        'cc': 'powerpc64le-linux-gnu-gcc',
> +      'cc_alt': ['ppc64le-redhat-linux-gcc'],
>        'cc_dockerfile': 'debian-all-test-cross',
>        'cc_feat_cflags': cc_feat_cflags,
>        'folder': 'ppc64le',
> diff --git a/tests/tcg/riscv64/meson.build b/tests/tcg/riscv64/meson.build
> index 5ee20a1e98d..91c840b0058 100644
> --- a/tests/tcg/riscv64/meson.build
> +++ b/tests/tcg/riscv64/meson.build
> @@ -1,4 +1,5 @@
>  cc = 'riscv64-linux-gnu-gcc'
> +cc_alt = ['riscv64-redhat-linux-gnu-gcc']
>  cc_dockerfile = 'debian-all-test-cross'
>  
>  subdir('system')
> @@ -26,6 +27,7 @@ if 'qemu-riscv64' in emulators
>    tcg_tests += {
>      'riscv64-linux-user': {
>        'cc': cc,
> +      'cc_alt': cc_alt,
>        'cc_dockerfile': cc_dockerfile,
>        'folder': 'riscv64',
>        'gdb_arch': 'riscv64',
> diff --git a/tests/tcg/riscv64/system/meson.build b/tests/tcg/riscv64/system/meson.build
> index 87c3f9f11ce..c87e3eee1ad 100644
> --- a/tests/tcg/riscv64/system/meson.build
> +++ b/tests/tcg/riscv64/system/meson.build
> @@ -65,6 +65,7 @@ if 'qemu-system-riscv64' in emulators
>    tcg_tests += {
>      'riscv64-softmmu': {
>        'cc': cc,
> +      'cc_alt': cc_alt,
>        'cc_dockerfile': cc_dockerfile,
>        'folder': 'riscv64',
>        'gdb_arch': 'riscv64',
> diff --git a/tests/tcg/s390x/meson.build b/tests/tcg/s390x/meson.build
> index 1f9aa57fc73..f2328d9e5cf 100644
> --- a/tests/tcg/s390x/meson.build
> +++ b/tests/tcg/s390x/meson.build
> @@ -1,4 +1,5 @@
>  cc = 's390x-linux-gnu-gcc'
> +cc_alt = ['s390x-redhat-linux-gcc']
>  cc_dockerfile = 'debian-all-test-cross'
>  
>  cc_feat_cflags = {
> @@ -140,6 +141,7 @@ if 'qemu-s390x' in emulators
>    tcg_tests += {
>      's390x-linux-user': {
>        'cc': cc,
> +      'cc_alt': cc_alt,
>        'cc_dockerfile': cc_dockerfile,
>        'cc_feat_cflags': cc_feat_cflags,
>        'folder': 's390x',
> diff --git a/tests/tcg/s390x/system/meson.build b/tests/tcg/s390x/system/meson.build
> index ef19c4831fd..359d124cc78 100644
> --- a/tests/tcg/s390x/system/meson.build
> +++ b/tests/tcg/s390x/system/meson.build
> @@ -82,6 +82,7 @@ if 'qemu-system-s390x' in emulators
>    tcg_tests += {
>      's390x-softmmu': {
>        'cc': cc,
> +      'cc_alt': cc_alt,
>        'cc_dockerfile': cc_dockerfile,
>        'cc_feat_cflags': cc_feat_cflags,
>        'folder': 's390x',
> diff --git a/tests/tcg/x86_64/meson.build b/tests/tcg/x86_64/meson.build
> index cfeef1d969c..968fe27cfc5 100644
> --- a/tests/tcg/x86_64/meson.build
> +++ b/tests/tcg/x86_64/meson.build
> @@ -1,4 +1,5 @@
>  cc = 'x86_64-linux-gnu-gcc'
> +cc_alt = ['x86_64-redhat-linux-gcc']
>  cc_dockerfile = 'debian-amd64-cross'
>  
>  subdir('system')
> @@ -72,6 +73,7 @@ if 'qemu-x86_64' in emulators
>    tcg_tests += {
>      'x86_64-linux-user': {
>        'cc': cc,
> +      'cc_alt': cc_alt,
>        'cc_dockerfile': cc_dockerfile,
>        'folder': 'x86_64',
>        'gdb_arch': 'x86_64',
> diff --git a/tests/tcg/x86_64/system/meson.build b/tests/tcg/x86_64/system/meson.build
> index 43e7d7afa85..08b770d43ae 100644
> --- a/tests/tcg/x86_64/system/meson.build
> +++ b/tests/tcg/x86_64/system/meson.build
> @@ -52,6 +52,7 @@ if 'qemu-system-x86_64' in emulators
>    tcg_tests += {
>      'x86_64-softmmu': {
>        'cc': cc,
> +      'cc_alt': cc_alt,
>        'cc_dockerfile': cc_dockerfile,
>        'folder': 'x86_64/system',
>        'gdb_arch': 'x86_64',
> -- 
> 2.43.0
> 
> 

With regards,
Daniel
-- 
|: https://berrange.com       ~~        https://hachyderm.io/@berrange :|
|: https://libvirt.org          ~~          https://entangle-photo.org :|
|: https://pixelfed.art/berrange   ~~    https://fstop138.berrange.com :|

Re: [PATCH 3/4] tests/tcg: add alternative cross-compilers for fedora

[Pierrick Bouvier]

On 9/25/2026 2:40 AM, Daniel P. Berrangé wrote:
> On Thu, Sep 24, 2026 at 09:39:41PM +0000, Pierrick Bouvier wrote:
>> This allows to pick host compiler automatically on fedora, as those
>> binaries are installed with 'gcc' package.
>>
>> This covers all host arch supported to this day:
>> https://fedoraproject.org/wiki/Architectures
>> - x86_64
>> - aarch64
>> - ppc64le
>> - riscv64
>> - s390x
>> Note: QEMU and Fedora don't support 32-bit hosts anymore.
> 
> Regardless of what installation arches Fedora targets, it
> ships cross compilers for pretty much everything. In F44
> I see the following GCC available:
> 
> gcc-aarch64-linux-gnu.x86_64         16.2.1-1.fc44 updates
> gcc-alpha-linux-gnu.x86_64           16.2.1-1.fc44 updates
> gcc-arc-linux-gnu.x86_64             16.2.1-1.fc44 updates
> gcc-arm-linux-gnu.x86_64             16.2.1-1.fc44 updates
> gcc-avr32-linux-gnu.x86_64           16.2.1-1.fc44 updates
> gcc-bfin-linux-gnu.x86_64            16.2.1-1.fc44 updates
> gcc-c6x-linux-gnu.x86_64             16.2.1-1.fc44 updates
> gcc-frv-linux-gnu.x86_64             16.2.1-1.fc44 updates
> gcc-h8300-linux-gnu.x86_64           16.2.1-1.fc44 updates
> gcc-hppa-linux-gnu.x86_64            16.2.1-1.fc44 updates
> gcc-hppa64-linux-gnu.x86_64          16.2.1-1.fc44 updates
> gcc-ia64-linux-gnu.x86_64            16.2.1-1.fc44 updates
> gcc-loongarch64-linux-gnu.x86_64     16.2.1-1.fc44 updates
> gcc-m68k-linux-gnu.x86_64            16.2.1-1.fc44 updates
> gcc-microblaze-linux-gnu.x86_64      16.2.1-1.fc44 updates
> gcc-mips64-linux-gnu.x86_64          16.2.1-1.fc44 updates
> gcc-mn10300-linux-gnu.x86_64         16.2.1-1.fc44 updates
> gcc-openrisc-linux-gnu.x86_64        16.2.1-1.fc44 updates
> gcc-powerpc64-linux-gnu.x86_64       16.2.1-1.fc44 updates
> gcc-powerpc64le-linux-gnu.x86_64     16.2.1-1.fc44 updates
> gcc-ppc64-linux-gnu.x86_64           16.2.1-1.fc44 updates
> gcc-ppc64le-linux-gnu.x86_64         16.2.1-1.fc44 updates
> gcc-riscv32-linux-gnu.x86_64         16.2.1-1.fc44 updates
> gcc-riscv64-linux-gnu.x86_64         16.2.1-1.fc44 updates
> gcc-s390x-linux-gnu.x86_64           16.2.1-1.fc44 updates
> gcc-sparc64-linux-gnu.x86_64         16.2.1-1.fc44 updates
> gcc-x86_64-linux-gnu.x86_64          16.2.1-1.fc44 updates
> gcc-xtensa-linux-gnu.x86_64          16.2.1-1.fc44 updates
> 
>

We want to detect host compiler here (redhat-* variants), as mentioned
in commit description. It addresses original request from Paolo. Cross
compilers above are already detected with current cc field.

> 
> With regards,
> Daniel

Re: [PATCH 3/4] tests/tcg: add alternative cross-compilers for fedora

[Daniel P. Berrangé]

On Fri, Sep 25, 2026 at 08:20:44AM -0700, Pierrick Bouvier wrote:
> On 9/25/2026 2:40 AM, Daniel P. Berrangé wrote:
> > On Thu, Sep 24, 2026 at 09:39:41PM +0000, Pierrick Bouvier wrote:
> >> This allows to pick host compiler automatically on fedora, as those
> >> binaries are installed with 'gcc' package.
> >>
> >> This covers all host arch supported to this day:
> >> https://fedoraproject.org/wiki/Architectures
> >> - x86_64
> >> - aarch64
> >> - ppc64le
> >> - riscv64
> >> - s390x
> >> Note: QEMU and Fedora don't support 32-bit hosts anymore.
> > 
> > Regardless of what installation arches Fedora targets, it
> > ships cross compilers for pretty much everything. In F44
> > I see the following GCC available:
> > 
> > gcc-aarch64-linux-gnu.x86_64         16.2.1-1.fc44 updates
> > gcc-alpha-linux-gnu.x86_64           16.2.1-1.fc44 updates
> > gcc-arc-linux-gnu.x86_64             16.2.1-1.fc44 updates
> > gcc-arm-linux-gnu.x86_64             16.2.1-1.fc44 updates
> > gcc-avr32-linux-gnu.x86_64           16.2.1-1.fc44 updates
> > gcc-bfin-linux-gnu.x86_64            16.2.1-1.fc44 updates
> > gcc-c6x-linux-gnu.x86_64             16.2.1-1.fc44 updates
> > gcc-frv-linux-gnu.x86_64             16.2.1-1.fc44 updates
> > gcc-h8300-linux-gnu.x86_64           16.2.1-1.fc44 updates
> > gcc-hppa-linux-gnu.x86_64            16.2.1-1.fc44 updates
> > gcc-hppa64-linux-gnu.x86_64          16.2.1-1.fc44 updates
> > gcc-ia64-linux-gnu.x86_64            16.2.1-1.fc44 updates
> > gcc-loongarch64-linux-gnu.x86_64     16.2.1-1.fc44 updates
> > gcc-m68k-linux-gnu.x86_64            16.2.1-1.fc44 updates
> > gcc-microblaze-linux-gnu.x86_64      16.2.1-1.fc44 updates
> > gcc-mips64-linux-gnu.x86_64          16.2.1-1.fc44 updates
> > gcc-mn10300-linux-gnu.x86_64         16.2.1-1.fc44 updates
> > gcc-openrisc-linux-gnu.x86_64        16.2.1-1.fc44 updates
> > gcc-powerpc64-linux-gnu.x86_64       16.2.1-1.fc44 updates
> > gcc-powerpc64le-linux-gnu.x86_64     16.2.1-1.fc44 updates
> > gcc-ppc64-linux-gnu.x86_64           16.2.1-1.fc44 updates
> > gcc-ppc64le-linux-gnu.x86_64         16.2.1-1.fc44 updates
> > gcc-riscv32-linux-gnu.x86_64         16.2.1-1.fc44 updates
> > gcc-riscv64-linux-gnu.x86_64         16.2.1-1.fc44 updates
> > gcc-s390x-linux-gnu.x86_64           16.2.1-1.fc44 updates
> > gcc-sparc64-linux-gnu.x86_64         16.2.1-1.fc44 updates
> > gcc-x86_64-linux-gnu.x86_64          16.2.1-1.fc44 updates
> > gcc-xtensa-linux-gnu.x86_64          16.2.1-1.fc44 updates
> > 
> >
> 
> We want to detect host compiler here (redhat-* variants), as mentioned
> in commit description. It addresses original request from Paolo. Cross
> compilers above are already detected with current cc field.

Oh, I see what you mean. Itis dealing with the naming difference
between  'redhat-linux-gnu' and just 'linux-gnu' in the compilers
for the native vs cross arch RPMs.


With regards,
Daniel
-- 
|: https://berrange.com       ~~        https://hachyderm.io/@berrange :|
|: https://libvirt.org          ~~          https://entangle-photo.org :|
|: https://pixelfed.art/berrange   ~~    https://fstop138.berrange.com :|

Re: [PATCH 3/4] tests/tcg: add alternative cross-compilers for fedora

[Pierrick Bouvier]

On 9/25/2026 8:54 AM, Daniel P. Berrangé wrote:
> On Fri, Sep 25, 2026 at 08:20:44AM -0700, Pierrick Bouvier wrote:
>> On 9/25/2026 2:40 AM, Daniel P. Berrangé wrote:
>>> On Thu, Sep 24, 2026 at 09:39:41PM +0000, Pierrick Bouvier wrote:
>>>> This allows to pick host compiler automatically on fedora, as those
>>>> binaries are installed with 'gcc' package.
>>>>
>>>> This covers all host arch supported to this day:
>>>> https://fedoraproject.org/wiki/Architectures
>>>> - x86_64
>>>> - aarch64
>>>> - ppc64le
>>>> - riscv64
>>>> - s390x
>>>> Note: QEMU and Fedora don't support 32-bit hosts anymore.
>>>
>>> Regardless of what installation arches Fedora targets, it
>>> ships cross compilers for pretty much everything. In F44
>>> I see the following GCC available:
>>>
>>> gcc-aarch64-linux-gnu.x86_64         16.2.1-1.fc44 updates
>>> gcc-alpha-linux-gnu.x86_64           16.2.1-1.fc44 updates
>>> gcc-arc-linux-gnu.x86_64             16.2.1-1.fc44 updates
>>> gcc-arm-linux-gnu.x86_64             16.2.1-1.fc44 updates
>>> gcc-avr32-linux-gnu.x86_64           16.2.1-1.fc44 updates
>>> gcc-bfin-linux-gnu.x86_64            16.2.1-1.fc44 updates
>>> gcc-c6x-linux-gnu.x86_64             16.2.1-1.fc44 updates
>>> gcc-frv-linux-gnu.x86_64             16.2.1-1.fc44 updates
>>> gcc-h8300-linux-gnu.x86_64           16.2.1-1.fc44 updates
>>> gcc-hppa-linux-gnu.x86_64            16.2.1-1.fc44 updates
>>> gcc-hppa64-linux-gnu.x86_64          16.2.1-1.fc44 updates
>>> gcc-ia64-linux-gnu.x86_64            16.2.1-1.fc44 updates
>>> gcc-loongarch64-linux-gnu.x86_64     16.2.1-1.fc44 updates
>>> gcc-m68k-linux-gnu.x86_64            16.2.1-1.fc44 updates
>>> gcc-microblaze-linux-gnu.x86_64      16.2.1-1.fc44 updates
>>> gcc-mips64-linux-gnu.x86_64          16.2.1-1.fc44 updates
>>> gcc-mn10300-linux-gnu.x86_64         16.2.1-1.fc44 updates
>>> gcc-openrisc-linux-gnu.x86_64        16.2.1-1.fc44 updates
>>> gcc-powerpc64-linux-gnu.x86_64       16.2.1-1.fc44 updates
>>> gcc-powerpc64le-linux-gnu.x86_64     16.2.1-1.fc44 updates
>>> gcc-ppc64-linux-gnu.x86_64           16.2.1-1.fc44 updates
>>> gcc-ppc64le-linux-gnu.x86_64         16.2.1-1.fc44 updates
>>> gcc-riscv32-linux-gnu.x86_64         16.2.1-1.fc44 updates
>>> gcc-riscv64-linux-gnu.x86_64         16.2.1-1.fc44 updates
>>> gcc-s390x-linux-gnu.x86_64           16.2.1-1.fc44 updates
>>> gcc-sparc64-linux-gnu.x86_64         16.2.1-1.fc44 updates
>>> gcc-x86_64-linux-gnu.x86_64          16.2.1-1.fc44 updates
>>> gcc-xtensa-linux-gnu.x86_64          16.2.1-1.fc44 updates
>>>
>>>
>>
>> We want to detect host compiler here (redhat-* variants), as mentioned
>> in commit description. It addresses original request from Paolo. Cross
>> compilers above are already detected with current cc field.
> 
> Oh, I see what you mean. Itis dealing with the naming difference
> between  'redhat-linux-gnu' and just 'linux-gnu' in the compilers
> for the native vs cross arch RPMs.
>

Right.
I'm not super familiar with Fedora, is there any fundamental difference
between this toolchain and linux-gnu variant, in terms of ABI or
anything else? Or is it just a distinction for "Our toolchain with
additional patches" vs upstream one?

I tried to find some info, but didn't really find anything useful.

> 
> With regards,
> Daniel

Re: [PATCH 3/4] tests/tcg: add alternative cross-compilers for fedora

[Daniel P. Berrangé]

On Fri, Sep 25, 2026 at 08:57:08AM -0700, Pierrick Bouvier wrote:
> On 9/25/2026 8:54 AM, Daniel P. Berrangé wrote:
> > On Fri, Sep 25, 2026 at 08:20:44AM -0700, Pierrick Bouvier wrote:
> >> On 9/25/2026 2:40 AM, Daniel P. Berrangé wrote:
> >>> On Thu, Sep 24, 2026 at 09:39:41PM +0000, Pierrick Bouvier wrote:
> >>>> This allows to pick host compiler automatically on fedora, as those
> >>>> binaries are installed with 'gcc' package.
> >>>>
> >>>> This covers all host arch supported to this day:
> >>>> https://fedoraproject.org/wiki/Architectures
> >>>> - x86_64
> >>>> - aarch64
> >>>> - ppc64le
> >>>> - riscv64
> >>>> - s390x
> >>>> Note: QEMU and Fedora don't support 32-bit hosts anymore.
> >>>
> >>> Regardless of what installation arches Fedora targets, it
> >>> ships cross compilers for pretty much everything. In F44
> >>> I see the following GCC available:
> >>>
> >>> gcc-aarch64-linux-gnu.x86_64         16.2.1-1.fc44 updates
> >>> gcc-alpha-linux-gnu.x86_64           16.2.1-1.fc44 updates
> >>> gcc-arc-linux-gnu.x86_64             16.2.1-1.fc44 updates
> >>> gcc-arm-linux-gnu.x86_64             16.2.1-1.fc44 updates
> >>> gcc-avr32-linux-gnu.x86_64           16.2.1-1.fc44 updates
> >>> gcc-bfin-linux-gnu.x86_64            16.2.1-1.fc44 updates
> >>> gcc-c6x-linux-gnu.x86_64             16.2.1-1.fc44 updates
> >>> gcc-frv-linux-gnu.x86_64             16.2.1-1.fc44 updates
> >>> gcc-h8300-linux-gnu.x86_64           16.2.1-1.fc44 updates
> >>> gcc-hppa-linux-gnu.x86_64            16.2.1-1.fc44 updates
> >>> gcc-hppa64-linux-gnu.x86_64          16.2.1-1.fc44 updates
> >>> gcc-ia64-linux-gnu.x86_64            16.2.1-1.fc44 updates
> >>> gcc-loongarch64-linux-gnu.x86_64     16.2.1-1.fc44 updates
> >>> gcc-m68k-linux-gnu.x86_64            16.2.1-1.fc44 updates
> >>> gcc-microblaze-linux-gnu.x86_64      16.2.1-1.fc44 updates
> >>> gcc-mips64-linux-gnu.x86_64          16.2.1-1.fc44 updates
> >>> gcc-mn10300-linux-gnu.x86_64         16.2.1-1.fc44 updates
> >>> gcc-openrisc-linux-gnu.x86_64        16.2.1-1.fc44 updates
> >>> gcc-powerpc64-linux-gnu.x86_64       16.2.1-1.fc44 updates
> >>> gcc-powerpc64le-linux-gnu.x86_64     16.2.1-1.fc44 updates
> >>> gcc-ppc64-linux-gnu.x86_64           16.2.1-1.fc44 updates
> >>> gcc-ppc64le-linux-gnu.x86_64         16.2.1-1.fc44 updates
> >>> gcc-riscv32-linux-gnu.x86_64         16.2.1-1.fc44 updates
> >>> gcc-riscv64-linux-gnu.x86_64         16.2.1-1.fc44 updates
> >>> gcc-s390x-linux-gnu.x86_64           16.2.1-1.fc44 updates
> >>> gcc-sparc64-linux-gnu.x86_64         16.2.1-1.fc44 updates
> >>> gcc-x86_64-linux-gnu.x86_64          16.2.1-1.fc44 updates
> >>> gcc-xtensa-linux-gnu.x86_64          16.2.1-1.fc44 updates
> >>>
> >>>
> >>
> >> We want to detect host compiler here (redhat-* variants), as mentioned
> >> in commit description. It addresses original request from Paolo. Cross
> >> compilers above are already detected with current cc field.
> > 
> > Oh, I see what you mean. Itis dealing with the naming difference
> > between  'redhat-linux-gnu' and just 'linux-gnu' in the compilers
> > for the native vs cross arch RPMs.
> >
> 
> Right.
> I'm not super familiar with Fedora, is there any fundamental difference
> between this toolchain and linux-gnu variant, in terms of ABI or
> anything else? Or is it just a distinction for "Our toolchain with
> additional patches" vs upstream one?

Most of the downstream patches are common to both the native
and cross GCC RPMs. I'm not aware of significant differences
between the two that would matter for QEMU's needs.

With regards,
Daniel
-- 
|: https://berrange.com       ~~        https://hachyderm.io/@berrange :|
|: https://libvirt.org          ~~          https://entangle-photo.org :|
|: https://pixelfed.art/berrange   ~~    https://fstop138.berrange.com :|

Re: [PATCH 3/4] tests/tcg: add alternative cross-compilers for fedora

[Daniel P. Berrangé]

On Thu, Sep 24, 2026 at 09:39:41PM +0000, Pierrick Bouvier wrote:
> This allows to pick host compiler automatically on fedora, as those
> binaries are installed with 'gcc' package.
> 
> This covers all host arch supported to this day:
> https://fedoraproject.org/wiki/Architectures
> - x86_64
> - aarch64
> - ppc64le
> - riscv64
> - s390x
> Note: QEMU and Fedora don't support 32-bit hosts anymore.
> 
> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
> ---
>  tests/tcg/aarch64/meson.build        | 2 ++
>  tests/tcg/aarch64/system/meson.build | 1 +
>  tests/tcg/aarch64_be/meson.build     | 1 +
>  tests/tcg/ppc64le/meson.build        | 1 +
>  tests/tcg/riscv64/meson.build        | 2 ++
>  tests/tcg/riscv64/system/meson.build | 1 +
>  tests/tcg/s390x/meson.build          | 2 ++
>  tests/tcg/s390x/system/meson.build   | 1 +
>  tests/tcg/x86_64/meson.build         | 2 ++
>  tests/tcg/x86_64/system/meson.build  | 1 +
>  10 files changed, 14 insertions(+)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>


With regards,
Daniel
-- 
|: https://berrange.com       ~~        https://hachyderm.io/@berrange :|
|: https://libvirt.org          ~~          https://entangle-photo.org :|
|: https://pixelfed.art/berrange   ~~    https://fstop138.berrange.com :|

[PATCH 4/4] tests/tcg: add alternative cross-compilers for macos (homebrew)

[Pierrick Bouvier]

Add support for cross compilers that can be installed with
homebrew: https://github.com/orgs/Homebrew/packages?tab=packages&q=-gcc
- i686-elf-gcc
- x86_64-elf-gcc
- aarch64-elf-gcc
- m68k-elf-gcc (ignored since we don't have system tests for m68k)
- riscv64-elf-gcc
- arm-none-eabi-gcc

Those toolchain target bare metal, so can be used for softmmu targets
only (macos has no user target anyway).

With this, we can also cleanup our CI for MacOS since it does not
require any --cross-prefix anymore.

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
---
 .gitlab-ci.d/macos.yml               | 7 -------
 tests/tcg/aarch64/system/meson.build | 2 +-
 tests/tcg/arm/system/meson.build     | 1 +
 tests/tcg/i386/system/meson.build    | 1 +
 tests/tcg/riscv64/system/meson.build | 2 +-
 tests/tcg/x86_64/system/meson.build  | 2 +-
 6 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/.gitlab-ci.d/macos.yml b/.gitlab-ci.d/macos.yml
index 40b9b637b3b..c798384392c 100644
--- a/.gitlab-ci.d/macos.yml
+++ b/.gitlab-ci.d/macos.yml
@@ -41,10 +41,6 @@ aarch64-macos-15-build:
     PKG_CONFIG_PATH: /opt/homebrew/curl/lib/pkgconfig:/opt/homebrew/ncurses/lib/pkgconfig:/opt/homebrew/readline/lib/pkgconfig
     CONFIGURE_ARGS:
         --target-list=aarch64-softmmu,arm-softmmu,i386-softmmu,x86_64-softmmu
-        --cross-prefix-aarch64=aarch64-elf-
-        --cross-prefix-arm=arm-none-eabi-
-        --cross-prefix-i386=i686-elf-
-        --cross-prefix-x86_64=x86_64-elf-
         --disable-plugins
     TEST_TARGETS: check-unit check-tcg
 
@@ -59,8 +55,5 @@ aarch64-macos-26-build:
     PKG_CONFIG_PATH: /opt/homebrew/curl/lib/pkgconfig:/opt/homebrew/ncurses/lib/pkgconfig:/opt/homebrew/readline/lib/pkgconfig
     CONFIGURE_ARGS:
         --target-list=aarch64-softmmu,i386-softmmu,x86_64-softmmu
-        --cross-prefix-aarch64=aarch64-elf-
-        --cross-prefix-i386=i686-elf-
-        --cross-prefix-x86_64=x86_64-elf-
         --disable-plugins
     TEST_TARGETS: check-unit check-tcg
diff --git a/tests/tcg/aarch64/system/meson.build b/tests/tcg/aarch64/system/meson.build
index fb3b33861ea..f9c4448abaf 100644
--- a/tests/tcg/aarch64/system/meson.build
+++ b/tests/tcg/aarch64/system/meson.build
@@ -96,7 +96,7 @@ if 'qemu-system-aarch64' in emulators
   tcg_tests += {
     'aarch64-softmmu': {
       'cc': cc,
-      'cc_alt': cc_alt,
+      'cc_alt': cc_alt + ['aarch64-elf-gcc'],
       'cc_dockerfile': cc_dockerfile,
       'cc_feat_cflags': cc_feat_cflags,
       'folder': 'aarch64/system',
diff --git a/tests/tcg/arm/system/meson.build b/tests/tcg/arm/system/meson.build
index 93d0cfec24e..89734f95605 100644
--- a/tests/tcg/arm/system/meson.build
+++ b/tests/tcg/arm/system/meson.build
@@ -64,6 +64,7 @@ if 'qemu-system-arm' in emulators
   tcg_tests += {
     'arm-softmmu': {
       'cc': cc,
+      'cc_alt': ['arm-none-eabi-gcc'],
       'cc_dockerfile': cc_dockerfile,
       'folder': 'arm/system',
       'gdb_arch': 'arm',
diff --git a/tests/tcg/i386/system/meson.build b/tests/tcg/i386/system/meson.build
index c3a19f43260..91c6e887191 100644
--- a/tests/tcg/i386/system/meson.build
+++ b/tests/tcg/i386/system/meson.build
@@ -42,6 +42,7 @@ if 'qemu-system-i386' in emulators
   tcg_tests += {
     'i386-softmmu': {
       'cc': cc,
+      'cc_alt': ['i686-elf-gcc'],
       'cc_dockerfile': cc_dockerfile,
       'folder': 'i386/system',
       'gdb_arch': 'i386',
diff --git a/tests/tcg/riscv64/system/meson.build b/tests/tcg/riscv64/system/meson.build
index c87e3eee1ad..c2d7d098871 100644
--- a/tests/tcg/riscv64/system/meson.build
+++ b/tests/tcg/riscv64/system/meson.build
@@ -65,7 +65,7 @@ if 'qemu-system-riscv64' in emulators
   tcg_tests += {
     'riscv64-softmmu': {
       'cc': cc,
-      'cc_alt': cc_alt,
+      'cc_alt': cc_alt + ['riscv64-elf-gcc'],
       'cc_dockerfile': cc_dockerfile,
       'folder': 'riscv64',
       'gdb_arch': 'riscv64',
diff --git a/tests/tcg/x86_64/system/meson.build b/tests/tcg/x86_64/system/meson.build
index 08b770d43ae..7d61257b771 100644
--- a/tests/tcg/x86_64/system/meson.build
+++ b/tests/tcg/x86_64/system/meson.build
@@ -52,7 +52,7 @@ if 'qemu-system-x86_64' in emulators
   tcg_tests += {
     'x86_64-softmmu': {
       'cc': cc,
-      'cc_alt': cc_alt,
+      'cc_alt': cc_alt + ['x86_64-elf-gcc'],
       'cc_dockerfile': cc_dockerfile,
       'folder': 'x86_64/system',
       'gdb_arch': 'x86_64',
-- 
2.43.0

Re: [PATCH 4/4] tests/tcg: add alternative cross-compilers for macos (homebrew)

[Daniel P. Berrangé]

On Thu, Sep 24, 2026 at 09:39:42PM +0000, Pierrick Bouvier wrote:
> Add support for cross compilers that can be installed with
> homebrew: https://github.com/orgs/Homebrew/packages?tab=packages&q=-gcc
> - i686-elf-gcc
> - x86_64-elf-gcc
> - aarch64-elf-gcc
> - m68k-elf-gcc (ignored since we don't have system tests for m68k)
> - riscv64-elf-gcc
> - arm-none-eabi-gcc
> 
> Those toolchain target bare metal, so can be used for softmmu targets
> only (macos has no user target anyway).
> 
> With this, we can also cleanup our CI for MacOS since it does not
> require any --cross-prefix anymore.
> 
> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
> ---
>  .gitlab-ci.d/macos.yml               | 7 -------
>  tests/tcg/aarch64/system/meson.build | 2 +-
>  tests/tcg/arm/system/meson.build     | 1 +
>  tests/tcg/i386/system/meson.build    | 1 +
>  tests/tcg/riscv64/system/meson.build | 2 +-
>  tests/tcg/x86_64/system/meson.build  | 2 +-
>  6 files changed, 5 insertions(+), 10 deletions(-)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>


With regards,
Daniel
-- 
|: https://berrange.com       ~~        https://hachyderm.io/@berrange :|
|: https://libvirt.org          ~~          https://entangle-photo.org :|
|: https://pixelfed.art/berrange   ~~    https://fstop138.berrange.com :|

Re: [PATCH 0/4] tests/tcg/meson.build: detect additional cross compilers

[Pierrick Bouvier]

On 9/24/2026 2:39 PM, Pierrick Bouvier wrote:
> This series solves:
> - detect and choose host compiler for host target on fedora
> - detect and choose cross compilers install with homebrew on macos
> 
> It adds a new cc_alt list field to test suite, to specify one or several cross
> compilers to try. If none is found, or none works, we fallback to containers as
> usual.
> 
> Tested on debian, macos, fedora, archlinux for x86 and aarch64 arch.
> 
> Based-on: 20260923185725.863311-1-pierrick.bouvier@oss.qualcomm.com
> "[PATCH v2 0/6] tests/tcg: use x86_64 cross containers on all host architectures"
> 
> Pierrick Bouvier (4):
>   tests/tcg/meson.build: report correct cc in summary
>   tests/tcg/meson.build: introduce cc_alt (alternative cross compiler)
>   tests/tcg: add alternative cross-compilers for fedora
>   tests/tcg: add alternative cross-compilers for macos (homebrew)
> 
>  .gitlab-ci.d/macos.yml               |  7 ----
>  tests/tcg/aarch64/meson.build        |  2 ++
>  tests/tcg/aarch64/system/meson.build |  1 +
>  tests/tcg/aarch64_be/meson.build     |  1 +
>  tests/tcg/arm/system/meson.build     |  1 +
>  tests/tcg/i386/system/meson.build    |  1 +
>  tests/tcg/meson.build                | 53 ++++++++++++++++------------
>  tests/tcg/ppc64le/meson.build        |  1 +
>  tests/tcg/riscv64/meson.build        |  2 ++
>  tests/tcg/riscv64/system/meson.build |  1 +
>  tests/tcg/s390x/meson.build          |  2 ++
>  tests/tcg/s390x/system/meson.build   |  1 +
>  tests/tcg/x86_64/meson.build         |  2 ++
>  tests/tcg/x86_64/system/meson.build  |  1 +
>  14 files changed, 47 insertions(+), 29 deletions(-)
> 

This was merged into master (efa3b9d5ac8024078225e1ab434411fdfe53b457).

Regards,
Pierrick