diff options
Diffstat (limited to 'gdb/aarch64-linux-tdep.c')
| -rw-r--r-- | gdb/aarch64-linux-tdep.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c index 1e1ca36..0ee5ecb 100644 --- a/gdb/aarch64-linux-tdep.c +++ b/gdb/aarch64-linux-tdep.c @@ -39,6 +39,7 @@ #include "stap-probe.h" #include "parser-defs.h" #include "user-regs.h" +#include "xml-syscall.h" #include <ctype.h> /* Signal frame handling. @@ -341,6 +342,28 @@ aarch64_stap_parse_special_token (struct gdbarch *gdbarch, return 1; } +/* Implement the "get_syscall_number" gdbarch method. */ + +static LONGEST +aarch64_linux_get_syscall_number (struct gdbarch *gdbarch, + ptid_t ptid) +{ + struct regcache *regs = get_thread_regcache (ptid); + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + + /* The content of register x8. */ + gdb_byte buf[X_REGISTER_SIZE]; + /* The result. */ + LONGEST ret; + + /* Getting the system call number from the register x8. */ + regcache_cooked_read (regs, AARCH64_DWARF_X0 + 8, buf); + + ret = extract_signed_integer (buf, X_REGISTER_SIZE, byte_order); + + return ret; +} + static void aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) { @@ -385,6 +408,10 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) set_gdbarch_stap_is_single_operand (gdbarch, aarch64_stap_is_single_operand); set_gdbarch_stap_parse_special_token (gdbarch, aarch64_stap_parse_special_token); + + /* `catch syscall' */ + set_xml_syscall_file_name (gdbarch, "syscalls/aarch64-linux.xml"); + set_gdbarch_get_syscall_number (gdbarch, aarch64_linux_get_syscall_number); } /* Provide a prototype to silence -Wmissing-prototypes. */ |