gdbstub: Build once on various targets (single-binary)

[PATCH v2 45/50] target/loongarch: Build 'gdbstub.c' once for system single binary

Philippe Mathieu-Daudé posted 50 patches 1 month ago

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Maintainers: Laurent Vivier <laurent@vivier.eu>, Pierrick Bouvier <pierrick.bouvier@linaro.org>, Michael Rolnik <mrolnik@gmail.com>, "Alex Bennée" <alex.bennee@linaro.org>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Yanan Wang <wangyanan55@huawei.com>, Zhao Liu <zhao1.liu@intel.com>, "Dr. David Alan Gilbert" <dave@treblig.org>, Richard Henderson <richard.henderson@linaro.org>, Brian Cain <brian.cain@oss.qualcomm.com>, Paolo Bonzini <pbonzini@redhat.com>, Song Gao <gaosong@loongson.cn>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Aurelien Jarno <aurelien@aurel32.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <arikalo@gmail.com>, Stafford Horne <shorne@gmail.com>, Nicholas Piggin <npiggin@gmail.com>, Chinmay Rath <rathc@linux.ibm.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Yoshinori Sato <yoshinori.sato@nifty.com>, Ilya Leoshkevich <iii@linux.ibm.com>, David Hildenbrand <david@kernel.org>, Thomas Huth <thuth@redhat.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, Bastian Koppelmann <kbastian@rumtueddeln.de>

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[PATCH v2 45/50] target/loongarch: Build 'gdbstub.c' once for system single binary

Posted by Philippe Mathieu-Daudé 1 month ago

There is a single qemu-system-loongarch64 binary, but by
moving 'gdbstub.c' in the target_common_system_arch[] source
set the resulting object can be linked into a single qemu-sytem
binary.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
Based-on: <20260218-phys_addr-v6-0-a603bf363218@rev.ng>
          "single-binary: Drop TARGET_PHYS_ADDR_SPACE_BITS"
---
 target/loongarch/meson.build | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/target/loongarch/meson.build b/target/loongarch/meson.build
index 20bd3e2f0a3..2ae96d68695 100644
--- a/target/loongarch/meson.build
+++ b/target/loongarch/meson.build
@@ -3,9 +3,14 @@ gen = decodetree.process('insns.decode')
 loongarch_ss = ss.source_set()
 loongarch_ss.add(files(
   'cpu.c',
-  'gdbstub.c',
 ))
 
+loongarch_user_ss = ss.source_set()
+loongarch_user_ss.add(files('gdbstub.c'))
+
+loongarch_common_system_ss = ss.source_set()
+loongarch_common_system_ss.add(files('gdbstub.c'))
+
 loongarch_system_ss = ss.source_set()
 loongarch_system_ss.add(files(
   'arch_dump.c',
@@ -20,5 +25,7 @@ common_ss.add(when: 'CONFIG_LOONGARCH_DIS', if_true: [files('disas.c'), gen])
 subdir('tcg')
 
 target_arch += {'loongarch': loongarch_ss}
+target_user_arch += {'loongarch': loongarch_user_ss}
 target_system_arch += {'loongarch': loongarch_system_ss}
+target_common_system_arch += {'loongarch': loongarch_common_system_ss}
 subdir('kvm')
-- 
2.52.0

Re: [PATCH v2 45/50] target/loongarch: Build 'gdbstub.c' once for system single binary

Posted by Pierrick Bouvier 1 month ago

On 2/19/26 11:19 AM, Philippe Mathieu-Daudé wrote:
> There is a single qemu-system-loongarch64 binary, but by
> moving 'gdbstub.c' in the target_common_system_arch[] source
> set the resulting object can be linked into a single qemu-sytem
> binary.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
> Based-on: <20260218-phys_addr-v6-0-a603bf363218@rev.ng>
>            "single-binary: Drop TARGET_PHYS_ADDR_SPACE_BITS"
> ---
>   target/loongarch/meson.build | 9 ++++++++-
>   1 file changed, 8 insertions(+), 1 deletion(-)
> 

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>