From 02cd1b4e97120f71710c4246953bcb2d63cb4aea Mon Sep 17 00:00:00 2001 From: Jiangshuai Li Date: Tue, 13 Sep 2022 11:20:54 +0800 Subject: gdbserver/csky add csky gdbserver support Add new files: gdb/arch/csky.c gdb/arch/csky.h gdb/features/cskyv2-linux.c gdbserver/linux-csky-low.cc 1. In gdb/arch/csky.c file, add function "csky_create_target_description()" for csky_target::low_arch_setup(). later, it can be used for csky native gdb. 2. In gdb/features/cskyv2-linux.c file, create target_tdesc for csky, include gprs, pc, hi, lo, float, vector and float control registers. 3. In gdbserver/linux-csky-low.cc file, using PTRACE_GET/SET_RGESET to get/set registers. The main data structures in asm/ptrace.h are: struct pt_regs { unsigned long tls; unsigned long lr; unsigned long pc; unsigned long sr; unsigned long usp; /* * a0, a1, a2, a3: * r0, r1, r2, r3 */ unsigned long orig_a0; unsigned long a0; unsigned long a1; unsigned long a2; unsigned long a3; /* * r4 ~ r13 */ unsigned long regs[10]; /* r16 ~ r30 */ unsigned long exregs[15]; unsigned long rhi; unsigned long rlo; unsigned long dcsr; }; struct user_fp { unsigned long vr[96]; unsigned long fcr; unsigned long fesr; unsigned long fid; unsigned long reserved; }; --- gdb/features/cskyv2-linux.c | 127 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) create mode 100644 gdb/features/cskyv2-linux.c (limited to 'gdb/features/cskyv2-linux.c') diff --git a/gdb/features/cskyv2-linux.c b/gdb/features/cskyv2-linux.c new file mode 100644 index 0000000..e49b68c --- /dev/null +++ b/gdb/features/cskyv2-linux.c @@ -0,0 +1,127 @@ +/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro: + Original: cskyv2-linux.xml */ + +#include "gdbsupport/tdesc.h" + +static void +create_feature_cskyv2_linux (struct target_desc *result) +{ + struct tdesc_feature *feature; + + feature = tdesc_create_feature (result, "org.gnu.gdb.csky.abiv2"); + tdesc_create_reg (feature, "r0", 0, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r1", 1, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r2", 2, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r3", 3, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r4", 4, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r5", 5, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r6", 6, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r7", 7, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r8", 8, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r9", 9, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r10", 10, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r11", 11, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r12", 12, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r13", 13, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r14", 14, 1, NULL, 32, "data_ptr"); + tdesc_create_reg (feature, "r15", 15, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r16", 16, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r17", 17, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r18", 18, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r19", 19, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r20", 20, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r21", 21, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r22", 22, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r23", 23, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r24", 24, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r25", 25, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r26", 26, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r27", 27, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r28", 28, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r29", 29, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r30", 30, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "r31", 31, 1, NULL, 32, "int"); + + tdesc_create_reg (feature, "lo", 36, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "hi", 37, 1, NULL, 32, "int"); + + tdesc_create_reg (feature, "fr0", 40, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr1", 41, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr2", 42, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr3", 43, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr4", 44, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr5", 45, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr6", 46, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr7", 47, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr8", 48, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr9", 49, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr10", 50, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr11", 51, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr12", 52, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr13", 53, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr14", 54, 1, NULL, 64, "ieee_double"); + tdesc_create_reg (feature, "fr15", 55, 1, NULL, 64, "ieee_double"); + + tdesc_type *element_type; + element_type = tdesc_named_type (feature, "ieee_single"); + tdesc_create_vector (feature, "v4f", element_type, 4); + + element_type = tdesc_named_type (feature, "ieee_double"); + tdesc_create_vector (feature, "v2d", element_type, 2); + + element_type = tdesc_named_type (feature, "int8"); + tdesc_create_vector (feature, "v16i8", element_type, 16); + + element_type = tdesc_named_type (feature, "int16"); + tdesc_create_vector (feature, "v8i16", element_type, 8); + + element_type = tdesc_named_type (feature, "int32"); + tdesc_create_vector (feature, "v4i32", element_type, 4); + + element_type = tdesc_named_type (feature, "int64"); + tdesc_create_vector (feature, "v2i64", element_type, 2); + + tdesc_type_with_fields *type_with_fields; + type_with_fields = tdesc_create_union (feature, "vec128"); + tdesc_type *field_type; + field_type = tdesc_named_type (feature, "v4f"); + tdesc_add_field (type_with_fields, "v4_float", field_type); + field_type = tdesc_named_type (feature, "v2d"); + tdesc_add_field (type_with_fields, "v2_double", field_type); + field_type = tdesc_named_type (feature, "v16i8"); + tdesc_add_field (type_with_fields, "v16_int8", field_type); + field_type = tdesc_named_type (feature, "v8i16"); + tdesc_add_field (type_with_fields, "v8_int16", field_type); + field_type = tdesc_named_type (feature, "v4i32"); + tdesc_add_field (type_with_fields, "v4_int32", field_type); + field_type = tdesc_named_type (feature, "v2i64"); + tdesc_add_field (type_with_fields, "v2_int64", field_type); + field_type = tdesc_named_type (feature, "uint128"); + tdesc_add_field (type_with_fields, "uint128", field_type); + + + tdesc_create_reg (feature, "vr0", 56, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr1", 57, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr2", 58, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr3", 59, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr4", 60, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr5", 61, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr6", 62, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr7", 63, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr8", 64, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr9", 65, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr10", 66, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr11", 67, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr12", 68, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr13", 69, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr14", 70, 1, NULL, 128, "vec128"); + tdesc_create_reg (feature, "vr15", 71, 1, NULL, 128, "vec128"); + + tdesc_create_reg (feature, "pc", 72, 1, NULL, 32, "code_ptr"); + tdesc_create_reg (feature, "psr", 89, 1, NULL, 32, "int"); + + tdesc_create_reg (feature, "fid", 121, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "fcr", 122, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "fesr", 123, 1, NULL, 32, "int"); + tdesc_create_reg (feature, "usp", 127, 1, NULL, 32, "int"); +} -- cgit v1.1