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Diffstat (limited to 'gdb/bpf-tdep.c')
-rw-r--r--gdb/bpf-tdep.c84
1 files changed, 34 insertions, 50 deletions
diff --git a/gdb/bpf-tdep.c b/gdb/bpf-tdep.c
index 97a6d75..4e8d12e 100644
--- a/gdb/bpf-tdep.c
+++ b/gdb/bpf-tdep.c
@@ -36,12 +36,11 @@
#include "remote.h"
#include "gdbarch.h"
-
/* eBPF registers. */
enum bpf_regnum
{
- BPF_R0_REGNUM, /* return value */
+ BPF_R0_REGNUM, /* return value */
BPF_R1_REGNUM,
BPF_R2_REGNUM,
BPF_R3_REGNUM,
@@ -51,18 +50,17 @@ enum bpf_regnum
BPF_R7_REGNUM,
BPF_R8_REGNUM,
BPF_R9_REGNUM,
- BPF_R10_REGNUM, /* sp */
+ BPF_R10_REGNUM, /* sp */
BPF_PC_REGNUM,
};
-#define BPF_NUM_REGS (BPF_PC_REGNUM + 1)
+#define BPF_NUM_REGS (BPF_PC_REGNUM + 1)
/* Target-dependent structure in gdbarch. */
struct bpf_gdbarch_tdep : gdbarch_tdep_base
{
};
-
/* Internal debugging facilities. */
/* When this is set to non-zero debugging information will be
@@ -73,20 +71,17 @@ static unsigned int bpf_debug_flag = 0;
/* The show callback for 'show debug bpf'. */
static void
-show_bpf_debug (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
+show_bpf_debug (struct ui_file *file, int from_tty, struct cmd_list_element *c,
+ const char *value)
{
- gdb_printf (file, _("Debugging of BPF is %s.\n"), value);
+ gdb_printf (file, _ ("Debugging of BPF is %s.\n"), value);
}
-
/* BPF registers. */
-static const char *bpf_register_names[] =
-{
- "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
- "r8", "r9", "r10", "pc"
-};
+static const char *bpf_register_names[] = { "r0", "r1", "r2", "r3",
+ "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10", "pc" };
/* Return the name of register REGNUM. */
@@ -128,21 +123,18 @@ bpf_gdb_print_insn (bfd_vma memaddr, disassemble_info *info)
return default_print_insn (memaddr, info);
}
-
/* Return PC of first real instruction of the function starting at
START_PC. */
static CORE_ADDR
bpf_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
{
- gdb_printf (gdb_stdlog,
- "Skipping prologue: start_pc=%s\n",
+ gdb_printf (gdb_stdlog, "Skipping prologue: start_pc=%s\n",
paddress (gdbarch, start_pc));
/* XXX: to be completed. */
return start_pc + 0;
}
-
/* Frame unwinder.
XXX it is not clear how to unwind in eBPF, since the stack is not
@@ -154,8 +146,7 @@ bpf_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
/* Given THIS_FRAME, return its ID. */
static void
-bpf_frame_this_id (frame_info_ptr this_frame,
- void **this_prologue_cache,
+bpf_frame_this_id (frame_info_ptr this_frame, void **this_prologue_cache,
struct frame_id *this_id)
{
/* Note that THIS_ID defaults to the outermost frame if we don't set
@@ -165,8 +156,7 @@ bpf_frame_this_id (frame_info_ptr this_frame,
/* Return the reason why we can't unwind past THIS_FRAME. */
static enum unwind_stop_reason
-bpf_frame_unwind_stop_reason (frame_info_ptr this_frame,
- void **this_cache)
+bpf_frame_unwind_stop_reason (frame_info_ptr this_frame, void **this_cache)
{
return UNWIND_OUTERMOST;
}
@@ -174,26 +164,23 @@ bpf_frame_unwind_stop_reason (frame_info_ptr this_frame,
/* Ask THIS_FRAME to unwind its register. */
static struct value *
-bpf_frame_prev_register (frame_info_ptr this_frame,
- void **this_prologue_cache, int regnum)
+bpf_frame_prev_register (frame_info_ptr this_frame, void **this_prologue_cache,
+ int regnum)
{
return frame_unwind_got_register (this_frame, regnum, regnum);
}
/* Frame unwinder machinery for BPF. */
-static const struct frame_unwind bpf_frame_unwind =
-{
- "bpf prologue",
- NORMAL_FRAME,
- bpf_frame_unwind_stop_reason,
- bpf_frame_this_id,
- bpf_frame_prev_register,
- NULL,
- default_frame_sniffer
-};
+static const struct frame_unwind bpf_frame_unwind
+ = { "bpf prologue",
+ NORMAL_FRAME,
+ bpf_frame_unwind_stop_reason,
+ bpf_frame_this_id,
+ bpf_frame_prev_register,
+ NULL,
+ default_frame_sniffer };
-
/* Breakpoints. */
/* Enum describing the different kinds of breakpoints. We currently
@@ -219,7 +206,7 @@ static const gdb_byte *
bpf_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size)
{
static unsigned char brkpt_insn[]
- = {0x8c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+ = { 0x8c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
switch (kind)
{
@@ -231,14 +218,13 @@ bpf_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size)
}
}
-
/* Assuming THIS_FRAME is a dummy frame, return its frame ID. */
static struct frame_id
bpf_dummy_id (struct gdbarch *gdbarch, frame_info_ptr this_frame)
{
- CORE_ADDR sp = get_frame_register_unsigned (this_frame,
- gdbarch_sp_regnum (gdbarch));
+ CORE_ADDR sp
+ = get_frame_register_unsigned (this_frame, gdbarch_sp_regnum (gdbarch));
return frame_id_build (sp, get_frame_pc (this_frame));
}
@@ -246,8 +232,8 @@ bpf_dummy_id (struct gdbarch *gdbarch, frame_info_ptr this_frame)
static CORE_ADDR
bpf_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
- struct regcache *regcache, CORE_ADDR bp_addr,
- int nargs, struct value **args, CORE_ADDR sp,
+ struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
+ struct value **args, CORE_ADDR sp,
function_call_return_method return_method,
CORE_ADDR struct_addr)
{
@@ -307,7 +293,6 @@ bpf_return_value (struct gdbarch *gdbarch, struct value *function,
return RETURN_VALUE_REGISTER_CONVENTION;
}
-
/* Initialize the current architecture based on INFO. If possible, re-use an
architecture from ARCHES, which is a list of architectures already created
during this debugging session. */
@@ -370,18 +355,17 @@ bpf_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
}
void _initialize_bpf_tdep ();
+
void
_initialize_bpf_tdep ()
{
gdbarch_register (bfd_arch_bpf, bpf_gdbarch_init);
/* Add commands 'set/show debug bpf'. */
- add_setshow_zuinteger_cmd ("bpf", class_maintenance,
- &bpf_debug_flag,
- _("Set BPF debugging."),
- _("Show BPF debugging."),
- _("Enables BPF specific debugging output."),
- NULL,
- &show_bpf_debug,
- &setdebuglist, &showdebuglist);
+ add_setshow_zuinteger_cmd ("bpf", class_maintenance, &bpf_debug_flag,
+ _ ("Set BPF debugging."),
+ _ ("Show BPF debugging."),
+ _ ("Enables BPF specific debugging output."),
+ NULL, &show_bpf_debug, &setdebuglist,
+ &showdebuglist);
}
generated by cgit v1.1 at 2024-09-10 18:27:56 +0000