diff options
Diffstat (limited to 'gdb/m68k-linux-tdep.c')
| -rw-r--r-- | gdb/m68k-linux-tdep.c | 308 |
1 files changed, 145 insertions, 163 deletions
diff --git a/gdb/m68k-linux-tdep.c b/gdb/m68k-linux-tdep.c index ac53a12..7db5065 100644 --- a/gdb/m68k-linux-tdep.c +++ b/gdb/m68k-linux-tdep.c @@ -36,7 +36,7 @@ #include "elf/common.h" #include "linux-tdep.h" #include "regset.h" - + /* Offsets (in target ints) into jmp_buf. */ #define M68K_LINUX_JB_ELEMENT_SIZE 4 @@ -44,16 +44,15 @@ /* Check whether insn1 and insn2 are parts of a signal trampoline. */ -#define IS_SIGTRAMP(insn1, insn2) \ - (/* addaw #20,sp; moveq #119,d0; trap #0 */ \ - (insn1 == 0xdefc0014 && insn2 == 0x70774e40) \ - /* moveq #119,d0; trap #0 */ \ +#define IS_SIGTRAMP(insn1, insn2) \ + (/* addaw #20,sp; moveq #119,d0; trap #0 */ \ + (insn1 == 0xdefc0014 && insn2 == 0x70774e40) /* moveq #119,d0; trap #0 */ \ || insn1 == 0x70774e40) -#define IS_RT_SIGTRAMP(insn1, insn2) \ - (/* movel #173,d0; trap #0 */ \ - (insn1 == 0x203c0000 && insn2 == 0x00ad4e40) \ - /* moveq #82,d0; notb d0; trap #0 */ \ +#define IS_RT_SIGTRAMP(insn1, insn2) \ + (/* movel #173,d0; trap #0 */ \ + (insn1 == 0x203c0000 \ + && insn2 == 0x00ad4e40) /* moveq #82,d0; notb d0; trap #0 */ \ || (insn1 == 0x70524600 && (insn2 >> 16) == 0x4e40)) /* Return non-zero if THIS_FRAME corresponds to a signal trampoline. For @@ -69,7 +68,7 @@ m68k_linux_pc_in_sigtramp (frame_info_ptr this_frame) unsigned long insn0, insn1, insn2; CORE_ADDR pc = get_frame_pc (this_frame); - if (!safe_frame_unwind_memory (this_frame, pc - 4, {buf, sizeof (buf)})) + if (!safe_frame_unwind_memory (this_frame, pc - 4, { buf, sizeof (buf) })) return 0; insn1 = extract_unsigned_integer (buf + 4, 4, byte_order); insn2 = extract_unsigned_integer (buf + 8, 4, byte_order); @@ -95,107 +94,103 @@ m68k_linux_pc_in_sigtramp (frame_info_ptr this_frame) } /* From <asm/sigcontext.h>. */ -static int m68k_linux_sigcontext_reg_offset[M68K_NUM_REGS] = -{ - 2 * 4, /* %d0 */ - 3 * 4, /* %d1 */ - -1, /* %d2 */ - -1, /* %d3 */ - -1, /* %d4 */ - -1, /* %d5 */ - -1, /* %d6 */ - -1, /* %d7 */ - 4 * 4, /* %a0 */ - 5 * 4, /* %a1 */ - -1, /* %a2 */ - -1, /* %a3 */ - -1, /* %a4 */ - -1, /* %a5 */ - -1, /* %fp */ - 1 * 4, /* %sp */ - 6 * 4, /* %sr */ - 6 * 4 + 2, /* %pc */ - 8 * 4, /* %fp0 */ - 11 * 4, /* %fp1 */ - -1, /* %fp2 */ - -1, /* %fp3 */ - -1, /* %fp4 */ - -1, /* %fp5 */ - -1, /* %fp6 */ - -1, /* %fp7 */ - 14 * 4, /* %fpcr */ - 15 * 4, /* %fpsr */ - 16 * 4 /* %fpiaddr */ +static int m68k_linux_sigcontext_reg_offset[M68K_NUM_REGS] = { + 2 * 4, /* %d0 */ + 3 * 4, /* %d1 */ + -1, /* %d2 */ + -1, /* %d3 */ + -1, /* %d4 */ + -1, /* %d5 */ + -1, /* %d6 */ + -1, /* %d7 */ + 4 * 4, /* %a0 */ + 5 * 4, /* %a1 */ + -1, /* %a2 */ + -1, /* %a3 */ + -1, /* %a4 */ + -1, /* %a5 */ + -1, /* %fp */ + 1 * 4, /* %sp */ + 6 * 4, /* %sr */ + 6 * 4 + 2, /* %pc */ + 8 * 4, /* %fp0 */ + 11 * 4, /* %fp1 */ + -1, /* %fp2 */ + -1, /* %fp3 */ + -1, /* %fp4 */ + -1, /* %fp5 */ + -1, /* %fp6 */ + -1, /* %fp7 */ + 14 * 4, /* %fpcr */ + 15 * 4, /* %fpsr */ + 16 * 4 /* %fpiaddr */ }; -static int m68k_uclinux_sigcontext_reg_offset[M68K_NUM_REGS] = -{ - 2 * 4, /* %d0 */ - 3 * 4, /* %d1 */ - -1, /* %d2 */ - -1, /* %d3 */ - -1, /* %d4 */ - -1, /* %d5 */ - -1, /* %d6 */ - -1, /* %d7 */ - 4 * 4, /* %a0 */ - 5 * 4, /* %a1 */ - -1, /* %a2 */ - -1, /* %a3 */ - -1, /* %a4 */ - 6 * 4, /* %a5 */ - -1, /* %fp */ - 1 * 4, /* %sp */ - 7 * 4, /* %sr */ - 7 * 4 + 2, /* %pc */ - -1, /* %fp0 */ - -1, /* %fp1 */ - -1, /* %fp2 */ - -1, /* %fp3 */ - -1, /* %fp4 */ - -1, /* %fp5 */ - -1, /* %fp6 */ - -1, /* %fp7 */ - -1, /* %fpcr */ - -1, /* %fpsr */ - -1 /* %fpiaddr */ +static int m68k_uclinux_sigcontext_reg_offset[M68K_NUM_REGS] = { + 2 * 4, /* %d0 */ + 3 * 4, /* %d1 */ + -1, /* %d2 */ + -1, /* %d3 */ + -1, /* %d4 */ + -1, /* %d5 */ + -1, /* %d6 */ + -1, /* %d7 */ + 4 * 4, /* %a0 */ + 5 * 4, /* %a1 */ + -1, /* %a2 */ + -1, /* %a3 */ + -1, /* %a4 */ + 6 * 4, /* %a5 */ + -1, /* %fp */ + 1 * 4, /* %sp */ + 7 * 4, /* %sr */ + 7 * 4 + 2, /* %pc */ + -1, /* %fp0 */ + -1, /* %fp1 */ + -1, /* %fp2 */ + -1, /* %fp3 */ + -1, /* %fp4 */ + -1, /* %fp5 */ + -1, /* %fp6 */ + -1, /* %fp7 */ + -1, /* %fpcr */ + -1, /* %fpsr */ + -1 /* %fpiaddr */ }; /* From <asm/ucontext.h>. */ -static int m68k_linux_ucontext_reg_offset[M68K_NUM_REGS] = -{ - 6 * 4, /* %d0 */ - 7 * 4, /* %d1 */ - 8 * 4, /* %d2 */ - 9 * 4, /* %d3 */ - 10 * 4, /* %d4 */ - 11 * 4, /* %d5 */ - 12 * 4, /* %d6 */ - 13 * 4, /* %d7 */ - 14 * 4, /* %a0 */ - 15 * 4, /* %a1 */ - 16 * 4, /* %a2 */ - 17 * 4, /* %a3 */ - 18 * 4, /* %a4 */ - 19 * 4, /* %a5 */ - 20 * 4, /* %fp */ - 21 * 4, /* %sp */ - 23 * 4, /* %sr */ - 22 * 4, /* %pc */ - 27 * 4, /* %fp0 */ - 30 * 4, /* %fp1 */ - 33 * 4, /* %fp2 */ - 36 * 4, /* %fp3 */ - 39 * 4, /* %fp4 */ - 42 * 4, /* %fp5 */ - 45 * 4, /* %fp6 */ - 48 * 4, /* %fp7 */ - 24 * 4, /* %fpcr */ - 25 * 4, /* %fpsr */ - 26 * 4 /* %fpiaddr */ +static int m68k_linux_ucontext_reg_offset[M68K_NUM_REGS] = { + 6 * 4, /* %d0 */ + 7 * 4, /* %d1 */ + 8 * 4, /* %d2 */ + 9 * 4, /* %d3 */ + 10 * 4, /* %d4 */ + 11 * 4, /* %d5 */ + 12 * 4, /* %d6 */ + 13 * 4, /* %d7 */ + 14 * 4, /* %a0 */ + 15 * 4, /* %a1 */ + 16 * 4, /* %a2 */ + 17 * 4, /* %a3 */ + 18 * 4, /* %a4 */ + 19 * 4, /* %a5 */ + 20 * 4, /* %fp */ + 21 * 4, /* %sp */ + 23 * 4, /* %sr */ + 22 * 4, /* %pc */ + 27 * 4, /* %fp0 */ + 30 * 4, /* %fp1 */ + 33 * 4, /* %fp2 */ + 36 * 4, /* %fp3 */ + 39 * 4, /* %fp4 */ + 42 * 4, /* %fp5 */ + 45 * 4, /* %fp6 */ + 48 * 4, /* %fp7 */ + 24 * 4, /* %fpcr */ + 25 * 4, /* %fpsr */ + 26 * 4 /* %fpiaddr */ }; - /* Get info about saved registers in sigtramp. */ struct m68k_linux_sigtramp_info @@ -239,17 +234,16 @@ m68k_linux_get_sigtramp_info (frame_info_ptr this_frame) if (m68k_linux_pc_in_sigtramp (this_frame) == 2) info.sc_reg_offset = m68k_linux_ucontext_reg_offset; else - info.sc_reg_offset = (target_is_uclinux - ? m68k_uclinux_sigcontext_reg_offset - : m68k_linux_sigcontext_reg_offset); + info.sc_reg_offset + = (target_is_uclinux ? m68k_uclinux_sigcontext_reg_offset + : m68k_linux_sigcontext_reg_offset); return info; } /* Signal trampolines. */ static struct trad_frame_cache * -m68k_linux_sigtramp_frame_cache (frame_info_ptr this_frame, - void **this_cache) +m68k_linux_sigtramp_frame_cache (frame_info_ptr this_frame, void **this_cache) { struct frame_id this_id; struct trad_frame_cache *cache; @@ -270,8 +264,9 @@ m68k_linux_sigtramp_frame_cache (frame_info_ptr this_frame, trampoline. */ get_frame_register (this_frame, M68K_SP_REGNUM, buf); /* See the end of m68k_push_dummy_call. */ - this_id = frame_id_build (extract_unsigned_integer (buf, 4, byte_order) - - 4 + 8, get_frame_pc (this_frame)); + this_id + = frame_id_build (extract_unsigned_integer (buf, 4, byte_order) - 4 + 8, + get_frame_pc (this_frame)); trad_frame_set_id (cache, this_id); info = m68k_linux_get_sigtramp_info (this_frame); @@ -287,22 +282,20 @@ m68k_linux_sigtramp_frame_cache (frame_info_ptr this_frame, static void m68k_linux_sigtramp_frame_this_id (frame_info_ptr this_frame, - void **this_cache, - struct frame_id *this_id) + void **this_cache, struct frame_id *this_id) { - struct trad_frame_cache *cache = - m68k_linux_sigtramp_frame_cache (this_frame, this_cache); + struct trad_frame_cache *cache + = m68k_linux_sigtramp_frame_cache (this_frame, this_cache); trad_frame_get_id (cache, this_id); } static struct value * m68k_linux_sigtramp_frame_prev_register (frame_info_ptr this_frame, - void **this_cache, - int regnum) + void **this_cache, int regnum) { /* Make sure we've initialized the cache. */ - struct trad_frame_cache *cache = - m68k_linux_sigtramp_frame_cache (this_frame, this_cache); + struct trad_frame_cache *cache + = m68k_linux_sigtramp_frame_cache (this_frame, this_cache); return trad_frame_get_register (cache, this_frame, regnum); } @@ -314,58 +307,46 @@ m68k_linux_sigtramp_frame_sniffer (const struct frame_unwind *self, return m68k_linux_pc_in_sigtramp (this_frame); } -static const struct frame_unwind m68k_linux_sigtramp_frame_unwind = -{ - "m68k linux sigtramp", - SIGTRAMP_FRAME, - default_frame_unwind_stop_reason, - m68k_linux_sigtramp_frame_this_id, - m68k_linux_sigtramp_frame_prev_register, - NULL, - m68k_linux_sigtramp_frame_sniffer -}; +static const struct frame_unwind m68k_linux_sigtramp_frame_unwind + = { "m68k linux sigtramp", + SIGTRAMP_FRAME, + default_frame_unwind_stop_reason, + m68k_linux_sigtramp_frame_this_id, + m68k_linux_sigtramp_frame_prev_register, + NULL, + m68k_linux_sigtramp_frame_sniffer }; /* Register maps for supply/collect regset functions. */ -static const struct regcache_map_entry m68k_linux_gregmap[] = - { - { 7, M68K_D1_REGNUM, 4 }, /* d1 ... d7 */ - { 7, M68K_A0_REGNUM, 4 }, /* a0 ... a6 */ - { 1, M68K_D0_REGNUM, 4 }, - { 1, M68K_SP_REGNUM, 4 }, - { 1, REGCACHE_MAP_SKIP, 4 }, /* orig_d0 (skip) */ - { 1, M68K_PS_REGNUM, 4 }, - { 1, M68K_PC_REGNUM, 4 }, - /* Ignore 16-bit fields 'fmtvec' and '__fill'. */ - { 0 } - }; +static const struct regcache_map_entry m68k_linux_gregmap[] + = { { 7, M68K_D1_REGNUM, 4 }, /* d1 ... d7 */ + { 7, M68K_A0_REGNUM, 4 }, /* a0 ... a6 */ + { 1, M68K_D0_REGNUM, 4 }, + { 1, M68K_SP_REGNUM, 4 }, + { 1, REGCACHE_MAP_SKIP, 4 }, /* orig_d0 (skip) */ + { 1, M68K_PS_REGNUM, 4 }, + { 1, M68K_PC_REGNUM, 4 }, + /* Ignore 16-bit fields 'fmtvec' and '__fill'. */ + { 0 } }; #define M68K_LINUX_GREGS_SIZE (20 * 4) -static const struct regcache_map_entry m68k_linux_fpregmap[] = - { - { 8, M68K_FP0_REGNUM, 12 }, /* fp0 ... fp7 */ - { 1, M68K_FPC_REGNUM, 4 }, - { 1, M68K_FPS_REGNUM, 4 }, - { 1, M68K_FPI_REGNUM, 4 }, - { 0 } - }; +static const struct regcache_map_entry m68k_linux_fpregmap[] + = { { 8, M68K_FP0_REGNUM, 12 }, /* fp0 ... fp7 */ + { 1, M68K_FPC_REGNUM, 4 }, + { 1, M68K_FPS_REGNUM, 4 }, + { 1, M68K_FPI_REGNUM, 4 }, + { 0 } }; #define M68K_LINUX_FPREGS_SIZE (27 * 4) /* Register sets. */ -static const struct regset m68k_linux_gregset = - { - m68k_linux_gregmap, - regcache_supply_regset, regcache_collect_regset - }; +static const struct regset m68k_linux_gregset + = { m68k_linux_gregmap, regcache_supply_regset, regcache_collect_regset }; -static const struct regset m68k_linux_fpregset = - { - m68k_linux_fpregmap, - regcache_supply_regset, regcache_collect_regset - }; +static const struct regset m68k_linux_fpregset + = { m68k_linux_fpregmap, regcache_supply_regset, regcache_collect_regset }; /* Iterate over core file register note sections. */ @@ -375,8 +356,8 @@ m68k_linux_iterate_over_regset_sections (struct gdbarch *gdbarch, void *cb_data, const struct regcache *regcache) { - cb (".reg", M68K_LINUX_GREGS_SIZE, M68K_LINUX_GREGS_SIZE, &m68k_linux_gregset, - NULL, cb_data); + cb (".reg", M68K_LINUX_GREGS_SIZE, M68K_LINUX_GREGS_SIZE, + &m68k_linux_gregset, NULL, cb_data); cb (".reg2", M68K_LINUX_FPREGS_SIZE, M68K_LINUX_FPREGS_SIZE, &m68k_linux_fpregset, NULL, cb_data); } @@ -416,8 +397,8 @@ m68k_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target); /* Core file support. */ - set_gdbarch_iterate_over_regset_sections - (gdbarch, m68k_linux_iterate_over_regset_sections); + set_gdbarch_iterate_over_regset_sections ( + gdbarch, m68k_linux_iterate_over_regset_sections); /* Enable TLS support. */ set_gdbarch_fetch_tls_load_module_address (gdbarch, @@ -425,6 +406,7 @@ m68k_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) } void _initialize_m68k_linux_tdep (); + void _initialize_m68k_linux_tdep () { |