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| author | John Baldwin <jhb@FreeBSD.org> | 2017-09-04 19:34:48 -0700 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2017-09-04 19:34:48 -0700 |
| commit | a379bfd00effbbb0fb4df02dc686c2c110023cea (patch) | |
| tree | d952f87cb734f58eca2aa4a937f75879f00fffe3 | |
| parent | f7efc967ba45350b688e0f661a31eecc15d5e052 (diff) | |
| download | gdb-a379bfd00effbbb0fb4df02dc686c2c110023cea.zip gdb-a379bfd00effbbb0fb4df02dc686c2c110023cea.tar.gz gdb-a379bfd00effbbb0fb4df02dc686c2c110023cea.tar.bz2 | |
Enable support for x86 debug registers on NetBSD.
NetBSD recently added PT_GETDBREGS and PT_SETDBREGS ptrace operations
that match the existing ones supported by x86-bsd-nat.c. NetBSD's
headers do not provide the DBREG_DRX helper macro, so define a local
version in x86-bsd-nat.c. In addition, add the x86-nat.o and x86-dregs.o
object files to the native NetBSD x86 build targets.
gdb/ChangeLog:
* configure.nat: Add "x86-nat.o x86-dregs.o" for NetBSD/amd64 and
NetBSD/i386.
* x86-bsd-nat.c [!DBREG_DRX && __NetBSD__]: Define DBREG_DRX.
| -rw-r--r-- | gdb/ChangeLog | 6 | ||||
| -rw-r--r-- | gdb/configure.nat | 8 | ||||
| -rw-r--r-- | gdb/x86-bsd-nat.c | 9 |
3 files changed, 17 insertions, 6 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index ed89fbc..de1945a 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,11 @@ 2017-09-04 John Baldwin <jhb@FreeBSD.org> + * configure.nat: Add "x86-nat.o x86-dregs.o" for NetBSD/amd64 and + NetBSD/i386. + * x86-bsd-nat.c [!DBREG_DRX && __NetBSD__]: Define DBREG_DRX. + +2017-09-04 John Baldwin <jhb@FreeBSD.org> + * bsd-kvm.o: Make <sys/user.h> conditional on HAVE_SYS_USER_H. 2017-09-04 John Baldwin <jhb@FreeBSD.org> diff --git a/gdb/configure.nat b/gdb/configure.nat index b32c9aa..b1dda30 100644 --- a/gdb/configure.nat +++ b/gdb/configure.nat @@ -338,8 +338,8 @@ case ${gdb_host} in case ${gdb_host_cpu} in i386) # Host: NetBSD/amd64 - NATDEPFILES="${NATDEPFILES} nbsd-nat.o amd64-nat.o \ - x86-bsd-nat.o amd64-bsd-nat.o amd64-nbsd-nat.o" + NATDEPFILES="${NATDEPFILES} nbsd-nat.o amd64-nat.o x86-nat.o \ + x86-dregs.o x86-bsd-nat.o amd64-bsd-nat.o amd64-nbsd-nat.o" ;; sparc) # Host: NetBSD/sparc64 @@ -358,8 +358,8 @@ case ${gdb_host} in ;; i386) # Host: NetBSD/i386 ELF - NATDEPFILES="${NATDEPFILES} nbsd-nat.o x86-bsd-nat.o \ - i386-bsd-nat.o i386-nbsd-nat.o bsd-kvm.o" + NATDEPFILES="${NATDEPFILES} nbsd-nat.o x86-nat.o x86-dregs.o \ + x86-bsd-nat.o i386-bsd-nat.o i386-nbsd-nat.o bsd-kvm.o" LOADLIBES='-lkvm' ;; m68k) diff --git a/gdb/x86-bsd-nat.c b/gdb/x86-bsd-nat.c index 2ff661c..1d37b2f 100644 --- a/gdb/x86-bsd-nat.c +++ b/gdb/x86-bsd-nat.c @@ -51,11 +51,16 @@ x86bsd_mourn_inferior (struct target_ops *ops) super_mourn_inferior (ops); } -/* Not all versions of FreeBSD/i386 that support the debug registers - have this macro. */ +/* Helper macro to access debug register X. FreeBSD/amd64 and modern + versions of FreeBSD/i386 provide this macro in system headers. Define + a local version for systems that do not provide it. */ #ifndef DBREG_DRX +#ifdef __NetBSD__ +#define DBREG_DRX(d, x) ((d)->dr[x]) +#else #define DBREG_DRX(d, x) ((&d->dr0)[x]) #endif +#endif static unsigned long x86bsd_dr_get (ptid_t ptid, int regnum) |