X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fi386-darwin-tdep.c;h=8f9fc2dcb2e718fb10fccc280ebefafc2145c8bb;hb=refs%2Fheads%2Fconcurrent-displaced-stepping-2020-04-01;hp=25a5e5090881b6aba6ae159abe791e909f37afd5;hpb=4c38e0a4fcb69f8586d8db0b9cdb8dbab5980811;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/i386-darwin-tdep.c b/gdb/i386-darwin-tdep.c index 25a5e50908..8f9fc2dcb2 100644 --- a/gdb/i386-darwin-tdep.c +++ b/gdb/i386-darwin-tdep.c @@ -1,6 +1,5 @@ /* Darwin support for GDB, the GNU debugger. - Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2005, 2008, 2009, 2010 - Free Software Foundation, Inc. + Copyright (C) 1997-2020 Free Software Foundation, Inc. Contributed by Apple Computer, Inc. @@ -24,23 +23,19 @@ #include "inferior.h" #include "gdbcore.h" #include "target.h" -#include "floatformat.h" #include "symtab.h" #include "regcache.h" -#include "libbfd.h" #include "objfiles.h" #include "i387-tdep.h" #include "i386-tdep.h" #include "osabi.h" #include "ui-out.h" -#include "symtab.h" -#include "frame.h" -#include "gdb_assert.h" #include "i386-darwin-tdep.h" #include "solib.h" #include "solib-darwin.h" -#include "dwarf2-frame.h" +#include "dwarf2/frame.h" +#include /* Offsets into the struct i386_thread_state where we'll find the saved regs. From and i386-tdep.h. */ @@ -57,7 +52,7 @@ int i386_darwin_thread_state_reg_offset[] = 10 * 4, /* EIP */ 9 * 4, /* EFLAGS */ 11 * 4, /* CS */ - 8, /* SS */ + 8 * 4, /* SS */ 12 * 4, /* DS */ 13 * 4, /* ES */ 14 * 4, /* FS */ @@ -109,12 +104,12 @@ darwin_dwarf_signal_frame_p (struct gdbarch *gdbarch, return i386_sigtramp_p (this_frame); } -/* Check wether TYPE is a 128-bit vector (__m128, __m128d or __m128i). */ +/* Check whether TYPE is a 128-bit vector (__m128, __m128d or __m128i). */ static int i386_m128_p (struct type *type) { - return (TYPE_CODE (type) == TYPE_CODE_ARRAY && TYPE_VECTOR (type) + return (type->code () == TYPE_CODE_ARRAY && TYPE_VECTOR (type) && TYPE_LENGTH (type) == 16); } @@ -129,21 +124,25 @@ i386_darwin_arg_type_alignment (struct type *type) aligned to 8-byte boundaries. 7. [...] The caller aligns 128-bit vectors in the parameter area to 16-byte boundaries. */ - if (TYPE_CODE (type) == TYPE_CODE_ARRAY && TYPE_VECTOR (type)) + if (type->code () == TYPE_CODE_ARRAY && TYPE_VECTOR (type)) return TYPE_LENGTH (type); /* 4. The caller places all the fields of structures (or unions) with no vector elements in the parameter area. These structures are 4-byte aligned. 5. The caller places structures with vector elements on the stack, 16-byte aligned. */ - if (TYPE_CODE (type) == TYPE_CODE_STRUCT - || TYPE_CODE (type) == TYPE_CODE_UNION) + if (type->code () == TYPE_CODE_STRUCT + || type->code () == TYPE_CODE_UNION) { int i; int res = 4; - for (i = 0; i < TYPE_NFIELDS (type); i++) - res = max (res, - i386_darwin_arg_type_alignment (TYPE_FIELD_TYPE (type, i))); + for (i = 0; i < type->num_fields (); i++) + { + int align + = i386_darwin_arg_type_alignment (TYPE_FIELD_TYPE (type, i)); + + res = std::max (res, align); + } return res; } /* 2. The caller aligns nonvector arguments to 4-byte boundaries. */ @@ -154,7 +153,8 @@ static CORE_ADDR i386_darwin_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, - int struct_return, CORE_ADDR struct_addr) + function_call_return_method return_method, + CORE_ADDR struct_addr) { struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); @@ -170,7 +170,7 @@ i386_darwin_push_dummy_call (struct gdbarch *gdbarch, struct value *function, int args_space = 0; int num_m128 = 0; - if (struct_return) + if (return_method == return_method_struct) { if (write_pass) { @@ -190,20 +190,18 @@ i386_darwin_push_dummy_call (struct gdbarch *gdbarch, struct value *function, if (write_pass) { const gdb_byte *val = value_contents_all (args[i]); - regcache_raw_write - (regcache, I387_MM0_REGNUM(tdep) + num_m128, val); + regcache->raw_write (I387_MM0_REGNUM(tdep) + num_m128, val); } num_m128++; } else { - int len = TYPE_LENGTH (arg_type); - int align = i386_darwin_arg_type_alignment (arg_type); - - args_space = align_up (args_space, align); + args_space = align_up (args_space, + i386_darwin_arg_type_alignment (arg_type)); if (write_pass) write_memory (sp + args_space, - value_contents_all (args[i]), len); + value_contents_all (args[i]), + TYPE_LENGTH (arg_type)); /* The System V ABI says that: @@ -212,7 +210,7 @@ i386_darwin_push_dummy_call (struct gdbarch *gdbarch, struct value *function, depending on the size of the argument." This makes sure the stack stays word-aligned. */ - args_space += align_up (len, 4); + args_space += align_up (TYPE_LENGTH (arg_type), 4); } } @@ -230,10 +228,10 @@ i386_darwin_push_dummy_call (struct gdbarch *gdbarch, struct value *function, /* Finally, update the stack pointer... */ store_unsigned_integer (buf, 4, byte_order, sp); - regcache_cooked_write (regcache, I386_ESP_REGNUM, buf); + regcache->cooked_write (I386_ESP_REGNUM, buf); /* ...and fake a frame pointer. */ - regcache_cooked_write (regcache, I386_EBP_REGNUM, buf); + regcache->cooked_write (I386_EBP_REGNUM, buf); /* MarkK wrote: This "+ 8" is all over the place: (i386_frame_this_id, i386_sigtramp_frame_this_id, @@ -288,8 +286,9 @@ i386_mach_o_osabi_sniffer (bfd *abfd) return GDB_OSABI_UNKNOWN; } +void _initialize_i386_darwin_tdep (); void -_initialize_i386_darwin_tdep (void) +_initialize_i386_darwin_tdep () { gdbarch_register_osabi_sniffer (bfd_arch_unknown, bfd_target_mach_o_flavour, i386_mach_o_osabi_sniffer);