diff options
| -rw-r--r-- | payloads/libpayload/arch/arm64/Makefile.inc | 2 | ||||
| -rw-r--r-- | payloads/libpayload/arch/arm64/gdb.c | 69 |
2 files changed, 71 insertions, 0 deletions
diff --git a/payloads/libpayload/arch/arm64/Makefile.inc b/payloads/libpayload/arch/arm64/Makefile.inc index 7107d0c799..bb09b8f919 100644 --- a/payloads/libpayload/arch/arm64/Makefile.inc +++ b/payloads/libpayload/arch/arm64/Makefile.inc @@ -40,6 +40,8 @@ libc-y += cache.c cpu.S libc-y += selfboot.c libcbfs-$(CONFIG_LP_CBFS) += dummy_media.c +libgdb-y += gdb.c + # Add other classes here when you put assembly files into them! head.o-S-ccopts += $(arm64_asm_flags) libc-S-ccopts += $(arm64_asm_flags) diff --git a/payloads/libpayload/arch/arm64/gdb.c b/payloads/libpayload/arch/arm64/gdb.c new file mode 100644 index 0000000000..857272f095 --- /dev/null +++ b/payloads/libpayload/arch/arm64/gdb.c @@ -0,0 +1,69 @@ +/* + * Copyright 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but without any warranty; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <exception.h> +#include <gdb.h> +#include <libpayload.h> + +struct gdb_regs +{ + u64 x[32]; + struct fp_reg + { + u64 quad[2]; + } __attribute__((packed)) f[32]; + u32 fpcr; + u32 fpsr; + u32 spsr; +} __attribute__((packed)); + +static const u8 type_to_signal[] = { + [EXC_INV] = GDB_SIGILL, + [EXC_SYNC] = GDB_SIGTRAP, + [EXC_IRQ] = GDB_SIGSEGV, + [EXC_FIQ] = GDB_SIGSEGV, + [EXC_SERROR] = GDB_SIGSEGV +}; + +static int gdb_exception_hook(u32 type) +{ + return -1; +} + +void gdb_arch_init(void) +{ + exception_install_hook(&gdb_exception_hook); +} + +void gdb_arch_enter(void) +{ +} + +int gdb_arch_set_single_step(int on) +{ + /* GDB seems to only need this on x86, ARM works fine without it. */ + return -1; +} + +void gdb_arch_encode_regs(struct gdb_message *message) +{ +} + +void gdb_arch_decode_regs(int offset, struct gdb_message *message) +{ +} |