diff options
Diffstat (limited to 'gdb/i386-tdep.c')
| -rw-r--r-- | gdb/i386-tdep.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c index aac9baa0..ccec6d1 100644 --- a/gdb/i386-tdep.c +++ b/gdb/i386-tdep.c @@ -4389,27 +4389,24 @@ i386_stap_parse_special_token (struct gdbarch *gdbarch, /* Implementation of 'gdbarch_stap_adjust_register', as defined in gdbarch.h. */ -static void +static std::string i386_stap_adjust_register (struct gdbarch *gdbarch, struct stap_parse_info *p, - std::string ®name, int regnum) + const std::string ®name, int regnum) { static const std::unordered_set<std::string> reg_assoc = { "ax", "bx", "cx", "dx", "si", "di", "bp", "sp" }; - if (register_size (gdbarch, regnum) >= TYPE_LENGTH (p->arg_type)) - { - /* If we're dealing with a register whose size is greater or - equal than the size specified by the "[-]N@" prefix, then we - don't need to do anything. */ - return; - } + /* If we are dealing with a register whose size is less than the size + specified by the "[-]N@" prefix, and it is one of the registers that + we know has an extended variant available, then use the extended + version of the register instead. */ + if (register_size (gdbarch, regnum) < TYPE_LENGTH (p->arg_type) + && reg_assoc.find (regname) != reg_assoc.end ()) + return "e" + regname; - if (reg_assoc.find (regname) != reg_assoc.end ()) - { - /* Use the extended version of the register. */ - regname = "e" + regname; - } + /* Otherwise, just use the requested register. */ + return regname; } |