Date: Fri, 27 Nov 2020 16:35:44 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r368108 - head/sys/arm/include Message-ID: <202011271635.0ARGZiFN074747@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: markj Date: Fri Nov 27 16:35:43 2020 New Revision: 368108 URL: https://svnweb.freebsd.org/changeset/base/368108 Log: arm: Correctly report the size of FPA registers to GDB Modern ARM systems do not have an FPA unit but GDB reserves register indices for FPA registers and expects the stub to know their sizes. PR: 251022 Submitted by: Dmitry Salychev <dsl@mcusim.org> MFC after: 2 weeks Modified: head/sys/arm/include/gdb_machdep.h Modified: head/sys/arm/include/gdb_machdep.h ============================================================================== --- head/sys/arm/include/gdb_machdep.h Fri Nov 27 16:29:54 2020 (r368107) +++ head/sys/arm/include/gdb_machdep.h Fri Nov 27 16:35:43 2020 (r368108) @@ -36,9 +36,13 @@ #define GDB_REG_PC 15 static __inline size_t -gdb_cpu_regsz(int regnum __unused) +gdb_cpu_regsz(int regnum) { - return (sizeof(int)); + /* + * GDB expects the FPA registers f0-f7, each 96 bits wide, to be placed + * in between the PC and CSPR in response to a "g" packet. + */ + return (regnum >= 16 && regnum <= 23 ? 12 : sizeof(int)); } static __inline int
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202011271635.0ARGZiFN074747>