diff options
Diffstat (limited to 'gdb/i386-tdep.h')
| -rw-r--r-- | gdb/i386-tdep.h | 84 |
1 files changed, 44 insertions, 40 deletions
diff --git a/gdb/i386-tdep.h b/gdb/i386-tdep.h index e849b33..e4895b1 100644 --- a/gdb/i386-tdep.h +++ b/gdb/i386-tdep.h @@ -69,56 +69,57 @@ struct i386_gdbarch_tdep : gdbarch_tdep_base size_t sizeof_fpregset = 0; /* Register number for %st(0). The register numbers for the other - registers follow from this one. Set this to -1 to indicate the - absence of an FPU. */ - int st0_regnum = 0; + registers follow from this one. Set this to a value >= 0 if FPU is + present. */ + int st0_regnum = -1; /* Number of MMX registers. */ int num_mmx_regs = 0; - /* Register number for %mm0. Set this to -1 to indicate the absence - of MMX support. */ - int mm0_regnum = 0; + /* Register number for %mm0. Set this to a value >= 0 if MMX is + supported. */ + int mm0_regnum = -1; /* Number of pseudo YMM registers. */ int num_ymm_regs = 0; - /* Register number for %ymm0. Set this to -1 to indicate the absence - of pseudo YMM register support. */ - int ymm0_regnum = 0; + /* Register number for %ymm0. Set this to a value >= 0 if pseudo YMM + registers are supported. */ + int ymm0_regnum = -1; /* Number of AVX512 OpMask registers (K-registers) */ int num_k_regs = 0; - /* Register number for %k0. Set this to -1 to indicate the absence - of AVX512 OpMask register support. */ - int k0_regnum = 0; + /* Register number for %k0. Set this to a value >= 0 if AVX512 OpMask + is supported. */ + int k0_regnum = -1; /* Number of pseudo ZMM registers ($zmm0-$zmm31). */ int num_zmm_regs = 0; - /* Register number for %zmm0. Set this to -1 to indicate the absence - of pseudo ZMM register support. */ - int zmm0_regnum = 0; + /* Register number for %zmm0. Set this to a value >= 0 if pseudo ZMM + registers are supported. */ + int zmm0_regnum = -1; /* Number of byte registers. */ int num_byte_regs = 0; - /* Register pseudo number for %al. */ - int al_regnum = 0; + /* Register pseudo number for %al. If supported, set this to a + value >= 0. */ + int al_regnum = -1; /* Number of pseudo word registers. */ int num_word_regs = 0; - /* Register number for %ax. */ - int ax_regnum = 0; + /* Register number for %ax. If supported, set this to a value >= 0. */ + int ax_regnum = -1; /* Number of pseudo dword registers. */ int num_dword_regs = 0; - /* Register number for %eax. Set this to -1 to indicate the absence - of pseudo dword register support. */ - int eax_regnum = 0; + /* Register number for %eax. Set this to a value >= 0 if pseudo dword + registers are supported. */ + int eax_regnum = -1; /* Number of core registers. */ int num_core_regs = 0; @@ -129,14 +130,16 @@ struct i386_gdbarch_tdep : gdbarch_tdep_base /* Number of SSE registers added in AVX512. */ int num_xmm_avx512_regs = 0; - /* Register number of XMM16, the first XMM register added in AVX512. */ - int xmm16_regnum = 0; + /* Register number of XMM16, the first XMM register added in AVX512. + Set this to a value >= 0 if XMM registers are supported. */ + int xmm16_regnum = -1; /* Number of YMM registers added in AVX512. */ int num_ymm_avx512_regs = 0; - /* Register number of YMM16, the first YMM register added in AVX512. */ - int ymm16_regnum = 0; + /* Register number of YMM16, the first YMM register added in AVX512. + Set this to a value >= 0 if YMM registers are supported. */ + int ymm16_regnum = -1; /* Bits of the extended control register 0 (the XFEATURE_ENABLED_MASK register), excluding the x87 bit, which are supported by this GDB. */ @@ -152,23 +155,23 @@ struct i386_gdbarch_tdep : gdbarch_tdep_base /* Register names. */ const char * const *register_names = nullptr; - /* Register number for %ymm0h. Set this to -1 to indicate the absence - of upper YMM register support. */ - int ymm0h_regnum = 0; + /* Register number for %ymm0h. Set this to a value >= 0 if they are + supported. */ + int ymm0h_regnum = -1; /* Upper YMM register names. Only used for tdesc_numbered_register. */ const char * const *ymmh_register_names = nullptr; - /* Register number for %ymm16h. Set this to -1 to indicate the absence - of support for YMM16-31. */ - int ymm16h_regnum = 0; + /* Register number for %ymm16h. Set this to a value >= 0 if they are + supported. */ + int ymm16h_regnum = -1; /* YMM16-31 register names. Only used for tdesc_numbered_register. */ const char * const *ymm16h_register_names = nullptr; - /* Register number for %zmm0h. Set this to -1 to indicate the absence - of ZMM_HI256 register support. */ - int zmm0h_regnum = 0; + /* Register number for %zmm0h. Set this to a value >= 0 if ZMM_HI256 + registers are supported. */ + int zmm0h_regnum = -1; /* OpMask register names. */ const char * const *k_register_names = nullptr; @@ -185,15 +188,16 @@ struct i386_gdbarch_tdep : gdbarch_tdep_base /* Number of PKEYS registers. */ int num_pkeys_regs = 0; - /* Register number for PKRU register. */ - int pkru_regnum = 0; + /* Register number for PKRU register. If supported, set this to a value + >= 0. */ + int pkru_regnum = -1; /* PKEYS register names. */ const char * const *pkeys_register_names = nullptr; - /* Register number for %fsbase. Set this to -1 to indicate the - absence of segment base registers. */ - int fsbase_regnum = 0; + /* Register number for %fsbase. If supported, set this to a value + >= 0. */ + int fsbase_regnum = -1; /* Target description. */ const struct target_desc *tdesc = nullptr; |