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| author | Feiyang Chen <chenfeiyang@loongson.cn> | 2024-01-25 16:32:36 +0800 |
|---|---|---|
| committer | Tiezhu Yang <yangtiezhu@loongson.cn> | 2024-02-06 18:40:19 +0800 |
| commit | e4d74c01e77365f1327e4e567e7579cdd3bf74f6 (patch) | |
| tree | 57a80ffa2ea61b4754b9d71f89fcee012966bf05 /gdb/features | |
| parent | 1e9569f383a3d5a88ee07d0c2401bd95613c222e (diff) | |
| download | binutils-e4d74c01e77365f1327e4e567e7579cdd3bf74f6.zip binutils-e4d74c01e77365f1327e4e567e7579cdd3bf74f6.tar.gz binutils-e4d74c01e77365f1327e4e567e7579cdd3bf74f6.tar.bz2 | |
gdb: LoongArch: Add LBT extension support
Loongson Binary Translation (LBT) is used to accelerate binary
translation, which contains 4 scratch registers (scr0 to scr3),
x86/ARM eflags (eflags) and x87 fpu stack pointer (ftop). This
patch support gdb to fetch/store these registers.
Signed-off-by: Feiyang Chen <chenfeiyang@loongson.cn> # Framework
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> # Detail Optimizes
Signed-off-by: Hui Li <lihui@loongson.cn> # Error Fixes
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Diffstat (limited to 'gdb/features')
| -rw-r--r-- | gdb/features/Makefile | 1 | ||||
| -rw-r--r-- | gdb/features/loongarch/lbt.c | 19 | ||||
| -rw-r--r-- | gdb/features/loongarch/lbt.xml | 16 |
3 files changed, 36 insertions, 0 deletions
diff --git a/gdb/features/Makefile b/gdb/features/Makefile index 7c33c09..ddf4ec2 100644 --- a/gdb/features/Makefile +++ b/gdb/features/Makefile @@ -239,6 +239,7 @@ FEATURE_XMLFILES = aarch64-core.xml \ loongarch/fpu.xml \ loongarch/lsx.xml \ loongarch/lasx.xml \ + loongarch/lbt.xml \ riscv/rv32e-xregs.xml \ riscv/32bit-cpu.xml \ riscv/32bit-fpu.xml \ diff --git a/gdb/features/loongarch/lbt.c b/gdb/features/loongarch/lbt.c new file mode 100644 index 0000000..869c862 --- /dev/null +++ b/gdb/features/loongarch/lbt.c @@ -0,0 +1,19 @@ +/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro: + Original: lbt.xml */ + +#include "gdbsupport/tdesc.h" + +static int +create_feature_loongarch_lbt (struct target_desc *result, long regnum) +{ + struct tdesc_feature *feature; + + feature = tdesc_create_feature (result, "org.gnu.gdb.loongarch.lbt"); + tdesc_create_reg (feature, "scr0", regnum++, 1, "lbt", 64, "uint64"); + tdesc_create_reg (feature, "scr1", regnum++, 1, "lbt", 64, "uint64"); + tdesc_create_reg (feature, "scr2", regnum++, 1, "lbt", 64, "uint64"); + tdesc_create_reg (feature, "scr3", regnum++, 1, "lbt", 64, "uint64"); + tdesc_create_reg (feature, "eflags", regnum++, 1, "lbt", 32, "uint32"); + tdesc_create_reg (feature, "ftop", regnum++, 1, "lbt", 32, "uint32"); + return regnum; +} diff --git a/gdb/features/loongarch/lbt.xml b/gdb/features/loongarch/lbt.xml new file mode 100644 index 0000000..6526ee6 --- /dev/null +++ b/gdb/features/loongarch/lbt.xml @@ -0,0 +1,16 @@ +<?xml version="1.0"?> +<!-- Copyright (C) 2022-2024 Free Software Foundation, Inc. + + Copying and distribution of this file, with or without modification, + are permitted in any medium without royalty provided the copyright + notice and this notice are preserved. --> + +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> +<feature name="org.gnu.gdb.loongarch.lbt"> + <reg name="scr0" bitsize="64" type="uint64" group="lbt"/> + <reg name="scr1" bitsize="64" type="uint64" group="lbt"/> + <reg name="scr2" bitsize="64" type="uint64" group="lbt"/> + <reg name="scr3" bitsize="64" type="uint64" group="lbt"/> + <reg name="eflags" bitsize="32" type="uint32" group="lbt"/> + <reg name="ftop" bitsize="32" type="uint32" group="lbt"/> +</feature> |