On 2024/02/29 12:33, Ming Wang wrote:
> The following link error exists when building with LOONGARCH64
> machine:
>
> /usr/bin/ld: proc-service.o: in function `.LVL71':
> proc-service.c:(.text+0x324): undefined reference to `fill_gregset ...
> /usr/bin/ld: proc-service.o: in function `.LVL77':
> proc-service.c:(.text+0x364): undefined reference to `supply_gregset ...
> /usr/bin/ld: proc-service.o: in function `.LVL87':
> proc-service.c:(.text+0x3c4): undefined reference to `fill_fpregset ...
> /usr/bin/ld: proc-service.o: in function `.LVL93':
> proc-service.c:(.text+0x404): undefined reference to `supply_fpregset
> collect2: error: ld returned 1 exit status
>
> The cause of the error is that the definition of a function such as
> fill_gregset is not implemented. This patch is used to fix this error.
>
> Reported-by: Xiujie Jiang <jiangxiujie@xxxxxxxxxx>
> Signed-off-by: Ming Wang <wangming01@xxxxxxxxxxx>
> ---
> gdb-10.2.patch | 40 ++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 40 insertions(+)
>
> diff --git a/gdb-10.2.patch b/gdb-10.2.patch
> index a7018a2..a418209 100644
> --- a/gdb-10.2.patch
> +++ b/gdb-10.2.patch
> @@ -16057,3 +16057,43 @@ exit 0
> m10200-dis.c
> m10200-opc.c
> m10300-dis.c
> +--- gdb-10.2/gdb/loongarch-linux-tdep.c.orig
> ++++ gdb-10.2/gdb/loongarch-linux-tdep.c
> +@@ -707,3 +707,37 @@ _initialize_loongarch_linux_tdep ()
> + gdbarch_register_osabi (bfd_arch_loongarch, bfd_mach_loongarch64,
> + GDB_OSABI_LINUX, loongarch_linux_init_abi);
> + }
> ++
> ++/* Wrapper functions. These are only used by libthread_db. */
> ++#include <sys/procfs.h>
> ++void
> ++supply_gregset (struct regcache *regcache,
> ++ const prgregset_t *gregset)
> ++{
> ++ loongarch_elf_gregset.supply_regset (NULL, regcache, -1, gregset,
> ++ sizeof (prgregset_t));
> ++}
> ++
> ++void
> ++fill_gregset (const struct regcache *regcache,
> ++ prgregset_t *gregset, int regno)
> ++{
> ++ loongarch_elf_gregset.collect_regset (NULL, regcache, regno, gregset,
> ++ sizeof (prgregset_t));
> ++}
> ++
> ++void
> ++supply_fpregset (struct regcache *regcache,
> ++ const prfpregset_t *fpregset)
> ++{
> ++ loongarch_elf_fpregset.supply_regset (NULL, regcache, -1, fpregset,
> ++ sizeof (prfpregset_t));
> ++}
> ++
> ++void
> ++fill_fpregset (const struct regcache *regcache,
> ++ prfpregset_t *fpregset, int regno)
> ++{
> ++ loongarch_elf_fpregset.collect_regset (NULL, regcache, regno, fpregset,
> ++ sizeof (prfpregset_t));
> ++}
the following warnings are emitted, is it possible to suppress these?
$ make -j 16 warn target=LOONGARCH64
loongarch-linux-tdep.c:714:1: warning: no previous declaration for 'void supply_gregset(regcache*, const elf_greg_t (*)[27])' [-Wmissing-declarations]
supply_gregset (struct regcache *regcache,
^~~~~~~~~~~~~~
loongarch-linux-tdep.c:722:1: warning: no previous declaration for 'void fill_gregset(const regcache*, elf_greg_t (*)[27], int)' [-Wmissing-declarations]
fill_gregset (const struct regcache *regcache,
^~~~~~~~~~~~
loongarch-linux-tdep.c:730:1: warning: no previous declaration for 'void supply_fpregset(regcache*, const prfpregset_t*)' [-Wmissing-declarations]
supply_fpregset (struct regcache *regcache,
^~~~~~~~~~~~~~~
loongarch-linux-tdep.c:738:1: warning: no previous declaration for 'void fill_fpregset(const regcache*, prfpregset_t*, int)' [-Wmissing-declarations]
fill_fpregset (const struct regcache *regcache,
^~~~~~~~~~~~~
Looking at the gdb repository, the functions above are in gdb/loongarch-linux-nat.c
and it includes "gregset.h"?
Thanks,
Kazu
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