From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 7882) id 392DA3856DEF; Wed, 1 Jun 2022 08:21:50 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 392DA3856DEF Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable From: Jiangshuai Li To: gdb-cvs@sourceware.org Subject: [binutils-gdb] gdb:csky save fpu and vdsp info to struct csky_gdbarch_tdep X-Act-Checkin: binutils-gdb X-Git-Author: Jiangshuai Li X-Git-Refname: refs/heads/master X-Git-Oldrev: b0de9ed86f3af84fbd636f94a58b9c4ad7f4e743 X-Git-Newrev: 68538bbeaa9f6c5ebe68ce31465e44c46393e170 Message-Id: <20220601082150.392DA3856DEF@sourceware.org> Date: Wed, 1 Jun 2022 08:21:50 +0000 (GMT) X-BeenThere: gdb-cvs@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Jun 2022 08:21:50 -0000 https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3D68538bbeaa9f= 6c5ebe68ce31465e44c46393e170 commit 68538bbeaa9f6c5ebe68ce31465e44c46393e170 Author: Jiangshuai Li Date: Wed Jun 1 14:46:01 2022 +0800 gdb:csky save fpu and vdsp info to struct csky_gdbarch_tdep =20 First, add three variables fpu_abi, fpu_hardfp and vdsp_version to csky_gdbarch_tdep. They will be initialized from info.abfd in cskg_gdbarch_init. =20 Now, they are just used to find a candidate among the list of pre-decla= red architectures =20 Later, they will be used in gdbarch_return_value and gdbarch_push_dummy= _call for funtions described below: fpu_abi: to check if the bfd is using VAL_CSKY_FPU_ABI_HARD or VAL_CSKY_FPU_ABI_SOFT fpu_hardfp: to check if the bfd is using VAL_CSKY_FPU_HARDFP_SINGLE or VAL_CSKY_FPU_HARDFP_DOUBLE vdsp_version: to check if a function is returned with CSKY_VRET_REGNUM Diff: --- gdb/csky-tdep.c | 42 +++++++++++++++++++++++++++++++++++++++--- gdb/csky-tdep.h | 5 ++++- 2 files changed, 43 insertions(+), 4 deletions(-) diff --git a/gdb/csky-tdep.c b/gdb/csky-tdep.c index a9b53916561..633a87a26ea 100644 --- a/gdb/csky-tdep.c +++ b/gdb/csky-tdep.c @@ -2154,16 +2154,52 @@ static struct gdbarch * csky_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) { struct gdbarch *gdbarch; + /* Analyze info.abfd. */ + unsigned int fpu_abi =3D 0; + unsigned int vdsp_version =3D 0; + unsigned int fpu_hardfp =3D 0; + + /* When the type of bfd file is srec(or any files are not elf), + the E_FLAGS will be not credible. */ + if (info.abfd !=3D NULL && bfd_get_flavour (info.abfd) =3D=3D bfd_target= _elf_flavour) + { + /* Get FPU, VDSP build options. */ + fpu_abi =3D bfd_elf_get_obj_attr_int (info.abfd, + OBJ_ATTR_PROC, + Tag_CSKY_FPU_ABI); + vdsp_version =3D bfd_elf_get_obj_attr_int (info.abfd, + OBJ_ATTR_PROC, + Tag_CSKY_VDSP_VERSION); + fpu_hardfp =3D bfd_elf_get_obj_attr_int (info.abfd, + OBJ_ATTR_PROC, + Tag_CSKY_FPU_HARDFP); + } =20 /* Find a candidate among the list of pre-declared architectures. */ - arches =3D gdbarch_list_lookup_by_info (arches, &info); - if (arches !=3D NULL) - return arches->gdbarch; + for (arches =3D gdbarch_list_lookup_by_info (arches, &info); + arches !=3D NULL; + arches =3D gdbarch_list_lookup_by_info (arches->next, &info)) + { + csky_gdbarch_tdep *tdep + =3D (csky_gdbarch_tdep *) gdbarch_tdep (arches->gdbarch); + if (fpu_abi !=3D tdep->fpu_abi) + continue; + if (vdsp_version !=3D tdep->vdsp_version) + continue; + if (fpu_hardfp !=3D tdep->fpu_hardfp) + continue; + + /* Found a match. */ + return arches->gdbarch; + } =20 /* None found, create a new architecture from the information provided. */ csky_gdbarch_tdep *tdep =3D new csky_gdbarch_tdep; gdbarch =3D gdbarch_alloc (&info, tdep); + tdep->fpu_abi =3D fpu_abi; + tdep->vdsp_version =3D vdsp_version; + tdep->fpu_hardfp =3D fpu_hardfp; =20 /* Target data types. */ set_gdbarch_ptr_bit (gdbarch, 32); diff --git a/gdb/csky-tdep.h b/gdb/csky-tdep.h index 7898e0d325b..d0e5fc09270 100644 --- a/gdb/csky-tdep.h +++ b/gdb/csky-tdep.h @@ -33,7 +33,10 @@ enum lr_type_t /* Target-dependent structure in gdbarch. */ struct csky_gdbarch_tdep : gdbarch_tdep { - /* This is Unused. */ + /* Save FPU, VDSP ABI. */ + unsigned int fpu_abi; + unsigned int fpu_hardfp; + unsigned int vdsp_version; }; =20 /* Instruction sizes. */