diff options
Diffstat (limited to 'gdb/bsd-kvm.c')
| -rw-r--r-- | gdb/bsd-kvm.c | 103 |
1 files changed, 59 insertions, 44 deletions
diff --git a/gdb/bsd-kvm.c b/gdb/bsd-kvm.c index 8edc026..271bc64 100644 --- a/gdb/bsd-kvm.c +++ b/gdb/bsd-kvm.c @@ -56,16 +56,56 @@ static struct pcb *bsd_kvm_paddr; register state from PCB and supplies it to REGCACHE. */ static int (*bsd_kvm_supply_pcb)(struct regcache *regcache, struct pcb *pcb); -/* Target ops for libkvm interface. */ -static struct target_ops bsd_kvm_ops; - /* This is the ptid we use while we're connected to kvm. The kvm target currently doesn't export any view of the running processes, so this represents the kernel task. */ static ptid_t bsd_kvm_ptid; +/* The libkvm target. */ + +class bsd_kvm_target final : public target_ops +{ +public: + bsd_kvm_target () + { this->to_stratum = process_stratum; } + + const char *shortname () override + { return "kvm"; } + + const char *longname () override + { return _("Kernel memory interface"); } + + const char *doc () override + { + return _("Use a kernel virtual memory image as a target.\n\ +Optionally specify the filename of a core dump."); + } + + void open (const char *, int) override; + void close () override; + + void fetch_registers (struct regcache *, int) override; + enum target_xfer_status xfer_partial (enum target_object object, + const char *annex, + gdb_byte *readbuf, + const gdb_byte *writebuf, + ULONGEST offset, ULONGEST len, + ULONGEST *xfered_len) override; + + void files_info () override; + int thread_alive (ptid_t ptid) override; + const char *pid_to_str (ptid_t) override; + + int has_memory () override { return 1; } + int has_stack () override { return 1; } + int has_registers () override { return 1; } +}; + +/* Target ops for libkvm interface. */ +static bsd_kvm_target bsd_kvm_ops; + static void -bsd_kvm_open (const char *arg, int from_tty) +bsd_kvm_target::open (const char *arg, int from_tty) { char errbuf[_POSIX2_LINE_MAX]; char *execfile = NULL; @@ -107,8 +147,8 @@ bsd_kvm_open (const char *arg, int from_tty) print_stack_frame (get_selected_frame (NULL), 0, SRC_AND_LOC, 1); } -static void -bsd_kvm_close (struct target_ops *self) +void +bsd_kvm_target::close () { if (core_kd) { @@ -134,11 +174,11 @@ bsd_kvm_xfer_memory (CORE_ADDR addr, ULONGEST len, return nbytes; } -static enum target_xfer_status -bsd_kvm_xfer_partial (struct target_ops *ops, enum target_object object, - const char *annex, gdb_byte *readbuf, - const gdb_byte *writebuf, - ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) +enum target_xfer_status +bsd_kvm_target::xfer_partial (enum target_object object, + const char *annex, gdb_byte *readbuf, + const gdb_byte *writebuf, + ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) { switch (object) { @@ -162,8 +202,8 @@ bsd_kvm_xfer_partial (struct target_ops *ops, enum target_object object, } } -static void -bsd_kvm_files_info (struct target_ops *ops) +void +bsd_kvm_target::files_info () { if (bsd_kvm_corefile && strcmp (bsd_kvm_corefile, _PATH_MEM) != 0) printf_filtered (_("\tUsing the kernel crash dump %s.\n"), @@ -186,9 +226,8 @@ bsd_kvm_fetch_pcb (struct regcache *regcache, struct pcb *paddr) return bsd_kvm_supply_pcb (regcache, &pcb); } -static void -bsd_kvm_fetch_registers (struct target_ops *ops, - struct regcache *regcache, int regnum) +void +bsd_kvm_target::fetch_registers (struct regcache *regcache, int regnum) { struct nlist nl[2]; @@ -325,27 +364,20 @@ bsd_kvm_pcb_cmd (const char *arg, int fromtty) print_stack_frame (get_selected_frame (NULL), 0, SRC_AND_LOC, 1); } -static int -bsd_kvm_thread_alive (struct target_ops *ops, - ptid_t ptid) +int +bsd_kvm_target::thread_alive (ptid_t ptid) { return 1; } -static const char * -bsd_kvm_pid_to_str (struct target_ops *ops, ptid_t ptid) +const char * +bsd_kvm_target::pid_to_str (ptid_t ptid) { static char buf[64]; xsnprintf (buf, sizeof buf, "<kvm>"); return buf; } -static int -bsd_kvm_return_one (struct target_ops *ops) -{ - return 1; -} - /* Add the libkvm interface to the list of all possible targets and register CUPPLY_PCB as the architecture-specific process control block interpreter. */ @@ -356,23 +388,6 @@ bsd_kvm_add_target (int (*supply_pcb)(struct regcache *, struct pcb *)) gdb_assert (bsd_kvm_supply_pcb == NULL); bsd_kvm_supply_pcb = supply_pcb; - bsd_kvm_ops.to_shortname = "kvm"; - bsd_kvm_ops.to_longname = _("Kernel memory interface"); - bsd_kvm_ops.to_doc = _("Use a kernel virtual memory image as a target.\n\ -Optionally specify the filename of a core dump."); - bsd_kvm_ops.to_open = bsd_kvm_open; - bsd_kvm_ops.to_close = bsd_kvm_close; - bsd_kvm_ops.to_fetch_registers = bsd_kvm_fetch_registers; - bsd_kvm_ops.to_xfer_partial = bsd_kvm_xfer_partial; - bsd_kvm_ops.to_files_info = bsd_kvm_files_info; - bsd_kvm_ops.to_thread_alive = bsd_kvm_thread_alive; - bsd_kvm_ops.to_pid_to_str = bsd_kvm_pid_to_str; - bsd_kvm_ops.to_stratum = process_stratum; - bsd_kvm_ops.to_has_memory = bsd_kvm_return_one; - bsd_kvm_ops.to_has_stack = bsd_kvm_return_one; - bsd_kvm_ops.to_has_registers = bsd_kvm_return_one; - bsd_kvm_ops.to_magic = OPS_MAGIC; - add_target (&bsd_kvm_ops); add_prefix_cmd ("kvm", class_obscure, bsd_kvm_cmd, _("\ |