diff options
Diffstat (limited to 'gdb/mips-fbsd-tdep.c')
| -rw-r--r-- | gdb/mips-fbsd-tdep.c | 222 |
1 files changed, 98 insertions, 124 deletions
diff --git a/gdb/mips-fbsd-tdep.c b/gdb/mips-fbsd-tdep.c index 9966fa8..fe08733 100644 --- a/gdb/mips-fbsd-tdep.c +++ b/gdb/mips-fbsd-tdep.c @@ -35,13 +35,13 @@ first 38 follow the standard MIPS layout. The 39th holds IC_INT_REG on RM7K and RM9K processors. The 40th is a dummy for padding. */ -#define MIPS_FBSD_NUM_GREGS 40 +#define MIPS_FBSD_NUM_GREGS 40 /* Number of registers in `struct fpreg' from <machine/reg.h>. The first 32 hold floating point registers. 33 holds the FSR. The 34th holds FIR on FreeBSD 12.0 and newer kernels. On older kernels it was a zero-filled dummy for padding. */ -#define MIPS_FBSD_NUM_FPREGS 34 +#define MIPS_FBSD_NUM_FPREGS 34 /* Supply a single register. The register size might not match, so use regcache->raw_supply_integer (). */ @@ -78,15 +78,15 @@ mips_fbsd_supply_fpregs (struct regcache *regcache, int regnum, fp0num = mips_regnum (gdbarch)->fp0; for (i = 0; i <= 32; i++) if (regnum == fp0num + i || regnum == -1) - mips_fbsd_supply_reg (regcache, fp0num + i, - regs + i * regsize, regsize); + mips_fbsd_supply_reg (regcache, fp0num + i, regs + i * regsize, regsize); if (regnum == mips_regnum (gdbarch)->fp_control_status || regnum == -1) mips_fbsd_supply_reg (regcache, mips_regnum (gdbarch)->fp_control_status, regs + 32 * regsize, regsize); if ((regnum == mips_regnum (gdbarch)->fp_implementation_revision || regnum == -1) && extract_unsigned_integer (regs + 33 * regsize, regsize, - gdbarch_byte_order (gdbarch)) != 0) + gdbarch_byte_order (gdbarch)) + != 0) mips_fbsd_supply_reg (regcache, mips_regnum (gdbarch)->fp_implementation_revision, regs + 33 * regsize, regsize); @@ -124,8 +124,8 @@ mips_fbsd_collect_fpregs (const struct regcache *regcache, int regnum, fp0num = mips_regnum (gdbarch)->fp0; for (i = 0; i < 32; i++) if (regnum == fp0num + i || regnum == -1) - mips_fbsd_collect_reg (regcache, fp0num + i, - regs + i * regsize, regsize); + mips_fbsd_collect_reg (regcache, fp0num + i, regs + i * regsize, + regsize); if (regnum == mips_regnum (gdbarch)->fp_control_status || regnum == -1) mips_fbsd_collect_reg (regcache, mips_regnum (gdbarch)->fp_control_status, regs + 32 * regsize, regsize); @@ -159,8 +159,8 @@ mips_fbsd_collect_gregs (const struct regcache *regcache, int regnum, static void mips_fbsd_supply_fpregset (const struct regset *regset, - struct regcache *regcache, - int regnum, const void *fpregs, size_t len) + struct regcache *regcache, int regnum, + const void *fpregs, size_t len) { size_t regsize = mips_abi_regsize (regcache->arch ()); @@ -176,8 +176,8 @@ mips_fbsd_supply_fpregset (const struct regset *regset, static void mips_fbsd_collect_fpregset (const struct regset *regset, - const struct regcache *regcache, - int regnum, void *fpregs, size_t len) + const struct regcache *regcache, int regnum, + void *fpregs, size_t len) { size_t regsize = mips_abi_regsize (regcache->arch ()); @@ -209,8 +209,8 @@ mips_fbsd_supply_gregset (const struct regset *regset, static void mips_fbsd_collect_gregset (const struct regset *regset, - const struct regcache *regcache, - int regnum, void *gregs, size_t len) + const struct regcache *regcache, int regnum, + void *gregs, size_t len) { size_t regsize = mips_abi_regsize (regcache->arch ()); @@ -221,15 +221,13 @@ mips_fbsd_collect_gregset (const struct regset *regset, /* FreeBSD/mips register sets. */ -static const struct regset mips_fbsd_gregset = -{ +static const struct regset mips_fbsd_gregset = { NULL, mips_fbsd_supply_gregset, mips_fbsd_collect_gregset, }; -static const struct regset mips_fbsd_fpregset = -{ +static const struct regset mips_fbsd_fpregset = { NULL, mips_fbsd_supply_fpregset, mips_fbsd_collect_fpregset, @@ -253,31 +251,30 @@ mips_fbsd_iterate_over_regset_sections (struct gdbarch *gdbarch, /* Signal trampoline support. */ -#define FBSD_SYS_sigreturn 417 +#define FBSD_SYS_sigreturn 417 #define MIPS_INST_LI_V0_SIGRETURN 0x24020000 + FBSD_SYS_sigreturn -#define MIPS_INST_SYSCALL 0x0000000c -#define MIPS_INST_BREAK 0x0000000d +#define MIPS_INST_SYSCALL 0x0000000c +#define MIPS_INST_BREAK 0x0000000d -#define O32_SIGFRAME_UCONTEXT_OFFSET (16) -#define O32_SIGSET_T_SIZE (16) +#define O32_SIGFRAME_UCONTEXT_OFFSET (16) +#define O32_SIGSET_T_SIZE (16) -#define O32_UCONTEXT_ONSTACK (O32_SIGSET_T_SIZE) -#define O32_UCONTEXT_PC (O32_UCONTEXT_ONSTACK + 4) -#define O32_UCONTEXT_REGS (O32_UCONTEXT_PC + 4) -#define O32_UCONTEXT_SR (O32_UCONTEXT_REGS + 4 * 32) -#define O32_UCONTEXT_LO (O32_UCONTEXT_SR + 4) -#define O32_UCONTEXT_HI (O32_UCONTEXT_LO + 4) -#define O32_UCONTEXT_FPUSED (O32_UCONTEXT_HI + 4) -#define O32_UCONTEXT_FPREGS (O32_UCONTEXT_FPUSED + 4) +#define O32_UCONTEXT_ONSTACK (O32_SIGSET_T_SIZE) +#define O32_UCONTEXT_PC (O32_UCONTEXT_ONSTACK + 4) +#define O32_UCONTEXT_REGS (O32_UCONTEXT_PC + 4) +#define O32_UCONTEXT_SR (O32_UCONTEXT_REGS + 4 * 32) +#define O32_UCONTEXT_LO (O32_UCONTEXT_SR + 4) +#define O32_UCONTEXT_HI (O32_UCONTEXT_LO + 4) +#define O32_UCONTEXT_FPUSED (O32_UCONTEXT_HI + 4) +#define O32_UCONTEXT_FPREGS (O32_UCONTEXT_FPUSED + 4) -#define O32_UCONTEXT_REG_SIZE 4 +#define O32_UCONTEXT_REG_SIZE 4 static void mips_fbsd_sigframe_init (const struct tramp_frame *self, frame_info_ptr this_frame, - struct trad_frame_cache *cache, - CORE_ADDR func) + struct trad_frame_cache *cache, CORE_ADDR func) { struct gdbarch *gdbarch = get_frame_arch (this_frame); enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); @@ -293,39 +290,32 @@ mips_fbsd_sigframe_init (const struct tramp_frame *self, /* PC. */ regnum = mips_regnum (gdbarch)->pc; - trad_frame_set_reg_addr (cache, - regnum + gdbarch_num_regs (gdbarch), + trad_frame_set_reg_addr (cache, regnum + gdbarch_num_regs (gdbarch), ucontext_addr + O32_UCONTEXT_PC); /* GPRs. */ for (regnum = MIPS_ZERO_REGNUM, addr = ucontext_addr + O32_UCONTEXT_REGS; regnum <= MIPS_RA_REGNUM; regnum++, addr += O32_UCONTEXT_REG_SIZE) - trad_frame_set_reg_addr (cache, - regnum + gdbarch_num_regs (gdbarch), - addr); + trad_frame_set_reg_addr (cache, regnum + gdbarch_num_regs (gdbarch), addr); regnum = MIPS_PS_REGNUM; - trad_frame_set_reg_addr (cache, - regnum + gdbarch_num_regs (gdbarch), + trad_frame_set_reg_addr (cache, regnum + gdbarch_num_regs (gdbarch), ucontext_addr + O32_UCONTEXT_SR); /* HI and LO. */ regnum = mips_regnum (gdbarch)->lo; - trad_frame_set_reg_addr (cache, - regnum + gdbarch_num_regs (gdbarch), + trad_frame_set_reg_addr (cache, regnum + gdbarch_num_regs (gdbarch), ucontext_addr + O32_UCONTEXT_LO); regnum = mips_regnum (gdbarch)->hi; - trad_frame_set_reg_addr (cache, - regnum + gdbarch_num_regs (gdbarch), + trad_frame_set_reg_addr (cache, regnum + gdbarch_num_regs (gdbarch), ucontext_addr + O32_UCONTEXT_HI); if (target_read_memory (ucontext_addr + O32_UCONTEXT_FPUSED, buf, 4) == 0 && extract_unsigned_integer (buf, 4, byte_order) != 0) { - for (regnum = 0, addr = ucontext_addr + O32_UCONTEXT_FPREGS; - regnum < 32; regnum++, addr += O32_UCONTEXT_REG_SIZE) - trad_frame_set_reg_addr (cache, - regnum + gdbarch_fp0_regnum (gdbarch), + for (regnum = 0, addr = ucontext_addr + O32_UCONTEXT_FPREGS; regnum < 32; + regnum++, addr += O32_UCONTEXT_REG_SIZE) + trad_frame_set_reg_addr (cache, regnum + gdbarch_fp0_regnum (gdbarch), addr); trad_frame_set_reg_addr (cache, mips_regnum (gdbarch)->fp_control_status, addr); @@ -334,42 +324,38 @@ mips_fbsd_sigframe_init (const struct tramp_frame *self, trad_frame_set_id (cache, frame_id_build (sp, func)); } -#define MIPS_INST_ADDIU_A0_SP_O32 (0x27a40000 \ - + O32_SIGFRAME_UCONTEXT_OFFSET) +#define MIPS_INST_ADDIU_A0_SP_O32 (0x27a40000 + O32_SIGFRAME_UCONTEXT_OFFSET) -static const struct tramp_frame mips_fbsd_sigframe = -{ +static const struct tramp_frame mips_fbsd_sigframe = { SIGTRAMP_FRAME, MIPS_INSN32_SIZE, - { - { MIPS_INST_ADDIU_A0_SP_O32, ULONGEST_MAX }, /* addiu a0, sp, SIGF_UC */ - { MIPS_INST_LI_V0_SIGRETURN, ULONGEST_MAX }, /* li v0, SYS_sigreturn */ - { MIPS_INST_SYSCALL, ULONGEST_MAX }, /* syscall */ - { MIPS_INST_BREAK, ULONGEST_MAX }, /* break */ - { TRAMP_SENTINEL_INSN, ULONGEST_MAX } - }, + { { MIPS_INST_ADDIU_A0_SP_O32, ULONGEST_MAX }, /* addiu a0, sp, SIGF_UC */ + { MIPS_INST_LI_V0_SIGRETURN, + ULONGEST_MAX }, /* li v0, SYS_sigreturn */ + { MIPS_INST_SYSCALL, ULONGEST_MAX }, /* syscall */ + { MIPS_INST_BREAK, ULONGEST_MAX }, /* break */ + { TRAMP_SENTINEL_INSN, ULONGEST_MAX } }, mips_fbsd_sigframe_init }; -#define N64_SIGFRAME_UCONTEXT_OFFSET (32) -#define N64_SIGSET_T_SIZE (16) +#define N64_SIGFRAME_UCONTEXT_OFFSET (32) +#define N64_SIGSET_T_SIZE (16) -#define N64_UCONTEXT_ONSTACK (N64_SIGSET_T_SIZE) -#define N64_UCONTEXT_PC (N64_UCONTEXT_ONSTACK + 8) -#define N64_UCONTEXT_REGS (N64_UCONTEXT_PC + 8) -#define N64_UCONTEXT_SR (N64_UCONTEXT_REGS + 8 * 32) -#define N64_UCONTEXT_LO (N64_UCONTEXT_SR + 8) -#define N64_UCONTEXT_HI (N64_UCONTEXT_LO + 8) -#define N64_UCONTEXT_FPUSED (N64_UCONTEXT_HI + 8) -#define N64_UCONTEXT_FPREGS (N64_UCONTEXT_FPUSED + 8) +#define N64_UCONTEXT_ONSTACK (N64_SIGSET_T_SIZE) +#define N64_UCONTEXT_PC (N64_UCONTEXT_ONSTACK + 8) +#define N64_UCONTEXT_REGS (N64_UCONTEXT_PC + 8) +#define N64_UCONTEXT_SR (N64_UCONTEXT_REGS + 8 * 32) +#define N64_UCONTEXT_LO (N64_UCONTEXT_SR + 8) +#define N64_UCONTEXT_HI (N64_UCONTEXT_LO + 8) +#define N64_UCONTEXT_FPUSED (N64_UCONTEXT_HI + 8) +#define N64_UCONTEXT_FPREGS (N64_UCONTEXT_FPUSED + 8) -#define N64_UCONTEXT_REG_SIZE 8 +#define N64_UCONTEXT_REG_SIZE 8 static void mips64_fbsd_sigframe_init (const struct tramp_frame *self, frame_info_ptr this_frame, - struct trad_frame_cache *cache, - CORE_ADDR func) + struct trad_frame_cache *cache, CORE_ADDR func) { struct gdbarch *gdbarch = get_frame_arch (this_frame); enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); @@ -385,39 +371,32 @@ mips64_fbsd_sigframe_init (const struct tramp_frame *self, /* PC. */ regnum = mips_regnum (gdbarch)->pc; - trad_frame_set_reg_addr (cache, - regnum + gdbarch_num_regs (gdbarch), + trad_frame_set_reg_addr (cache, regnum + gdbarch_num_regs (gdbarch), ucontext_addr + N64_UCONTEXT_PC); /* GPRs. */ for (regnum = MIPS_ZERO_REGNUM, addr = ucontext_addr + N64_UCONTEXT_REGS; regnum <= MIPS_RA_REGNUM; regnum++, addr += N64_UCONTEXT_REG_SIZE) - trad_frame_set_reg_addr (cache, - regnum + gdbarch_num_regs (gdbarch), - addr); + trad_frame_set_reg_addr (cache, regnum + gdbarch_num_regs (gdbarch), addr); regnum = MIPS_PS_REGNUM; - trad_frame_set_reg_addr (cache, - regnum + gdbarch_num_regs (gdbarch), + trad_frame_set_reg_addr (cache, regnum + gdbarch_num_regs (gdbarch), ucontext_addr + N64_UCONTEXT_SR); /* HI and LO. */ regnum = mips_regnum (gdbarch)->lo; - trad_frame_set_reg_addr (cache, - regnum + gdbarch_num_regs (gdbarch), + trad_frame_set_reg_addr (cache, regnum + gdbarch_num_regs (gdbarch), ucontext_addr + N64_UCONTEXT_LO); regnum = mips_regnum (gdbarch)->hi; - trad_frame_set_reg_addr (cache, - regnum + gdbarch_num_regs (gdbarch), + trad_frame_set_reg_addr (cache, regnum + gdbarch_num_regs (gdbarch), ucontext_addr + N64_UCONTEXT_HI); if (target_read_memory (ucontext_addr + N64_UCONTEXT_FPUSED, buf, 4) == 0 && extract_unsigned_integer (buf, 4, byte_order) != 0) { - for (regnum = 0, addr = ucontext_addr + N64_UCONTEXT_FPREGS; - regnum < 32; regnum++, addr += N64_UCONTEXT_REG_SIZE) - trad_frame_set_reg_addr (cache, - regnum + gdbarch_fp0_regnum (gdbarch), + for (regnum = 0, addr = ucontext_addr + N64_UCONTEXT_FPREGS; regnum < 32; + regnum++, addr += N64_UCONTEXT_REG_SIZE) + trad_frame_set_reg_addr (cache, regnum + gdbarch_fp0_regnum (gdbarch), addr); trad_frame_set_reg_addr (cache, mips_regnum (gdbarch)->fp_control_status, addr); @@ -426,37 +405,31 @@ mips64_fbsd_sigframe_init (const struct tramp_frame *self, trad_frame_set_id (cache, frame_id_build (sp, func)); } -#define MIPS_INST_ADDIU_A0_SP_N32 (0x27a40000 \ - + N64_SIGFRAME_UCONTEXT_OFFSET) +#define MIPS_INST_ADDIU_A0_SP_N32 (0x27a40000 + N64_SIGFRAME_UCONTEXT_OFFSET) -static const struct tramp_frame mipsn32_fbsd_sigframe = -{ +static const struct tramp_frame mipsn32_fbsd_sigframe = { SIGTRAMP_FRAME, MIPS_INSN32_SIZE, - { - { MIPS_INST_ADDIU_A0_SP_N32, ULONGEST_MAX }, /* addiu a0, sp, SIGF_UC */ - { MIPS_INST_LI_V0_SIGRETURN, ULONGEST_MAX }, /* li v0, SYS_sigreturn */ - { MIPS_INST_SYSCALL, ULONGEST_MAX }, /* syscall */ - { MIPS_INST_BREAK, ULONGEST_MAX }, /* break */ - { TRAMP_SENTINEL_INSN, ULONGEST_MAX } - }, + { { MIPS_INST_ADDIU_A0_SP_N32, ULONGEST_MAX }, /* addiu a0, sp, SIGF_UC */ + { MIPS_INST_LI_V0_SIGRETURN, + ULONGEST_MAX }, /* li v0, SYS_sigreturn */ + { MIPS_INST_SYSCALL, ULONGEST_MAX }, /* syscall */ + { MIPS_INST_BREAK, ULONGEST_MAX }, /* break */ + { TRAMP_SENTINEL_INSN, ULONGEST_MAX } }, mips64_fbsd_sigframe_init }; -#define MIPS_INST_DADDIU_A0_SP_N64 (0x67a40000 \ - + N64_SIGFRAME_UCONTEXT_OFFSET) +#define MIPS_INST_DADDIU_A0_SP_N64 (0x67a40000 + N64_SIGFRAME_UCONTEXT_OFFSET) -static const struct tramp_frame mips64_fbsd_sigframe = -{ +static const struct tramp_frame mips64_fbsd_sigframe = { SIGTRAMP_FRAME, MIPS_INSN32_SIZE, - { - { MIPS_INST_DADDIU_A0_SP_N64, ULONGEST_MAX }, /* daddiu a0, sp, SIGF_UC */ - { MIPS_INST_LI_V0_SIGRETURN, ULONGEST_MAX }, /* li v0, SYS_sigreturn */ - { MIPS_INST_SYSCALL, ULONGEST_MAX }, /* syscall */ - { MIPS_INST_BREAK, ULONGEST_MAX }, /* break */ - { TRAMP_SENTINEL_INSN, ULONGEST_MAX } - }, + { { MIPS_INST_DADDIU_A0_SP_N64, ULONGEST_MAX }, /* daddiu a0, sp, SIGF_UC */ + { MIPS_INST_LI_V0_SIGRETURN, + ULONGEST_MAX }, /* li v0, SYS_sigreturn */ + { MIPS_INST_SYSCALL, ULONGEST_MAX }, /* syscall */ + { MIPS_INST_BREAK, ULONGEST_MAX }, /* break */ + { TRAMP_SENTINEL_INSN, ULONGEST_MAX } }, mips64_fbsd_sigframe_init }; @@ -548,30 +521,31 @@ mips_fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) switch (abi) { - case MIPS_ABI_O32: - tramp_frame_prepend_unwinder (gdbarch, &mips_fbsd_sigframe); - break; - case MIPS_ABI_N32: - tramp_frame_prepend_unwinder (gdbarch, &mipsn32_fbsd_sigframe); - break; - case MIPS_ABI_N64: - tramp_frame_prepend_unwinder (gdbarch, &mips64_fbsd_sigframe); - break; + case MIPS_ABI_O32: + tramp_frame_prepend_unwinder (gdbarch, &mips_fbsd_sigframe); + break; + case MIPS_ABI_N32: + tramp_frame_prepend_unwinder (gdbarch, &mipsn32_fbsd_sigframe); + break; + case MIPS_ABI_N64: + tramp_frame_prepend_unwinder (gdbarch, &mips64_fbsd_sigframe); + break; } - set_gdbarch_iterate_over_regset_sections - (gdbarch, mips_fbsd_iterate_over_regset_sections); + set_gdbarch_iterate_over_regset_sections ( + gdbarch, mips_fbsd_iterate_over_regset_sections); set_gdbarch_skip_solib_resolver (gdbarch, mips_fbsd_skip_solib_resolver); /* FreeBSD/mips has SVR4-style shared libraries. */ - set_solib_svr4_fetch_link_map_offsets - (gdbarch, (gdbarch_ptr_bit (gdbarch) == 32 ? - mips_fbsd_ilp32_fetch_link_map_offsets : - mips_fbsd_lp64_fetch_link_map_offsets)); + set_solib_svr4_fetch_link_map_offsets ( + gdbarch, + (gdbarch_ptr_bit (gdbarch) == 32 ? mips_fbsd_ilp32_fetch_link_map_offsets + : mips_fbsd_lp64_fetch_link_map_offsets)); } void _initialize_mips_fbsd_tdep (); + void _initialize_mips_fbsd_tdep () { |