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(a)kylinos.cn&gt; > Signed-off-by: Ming Wang <wangming01(a)loongson.cn&gt; > --- > 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"?