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| author | Youling Tang <tangyouling@loongson.cn> | 2022-05-30 20:08:30 +0800 |
|---|---|---|
| committer | Tiezhu Yang <yangtiezhu@loongson.cn> | 2022-06-14 22:21:43 +0800 |
| commit | e5ab6af52d38ee068c1860ef113b7db4cc985cfb (patch) | |
| tree | 8bad8cacb35f0635adbe82e3ed6837c0f5b9e3ef /gdb/arch | |
| parent | 476288fa2bddecf0f0e13dee826a076309bf01fe (diff) | |
| download | binutils-gdb-e5ab6af52d38ee068c1860ef113b7db4cc985cfb.tar.gz | |
gdbserver: Add LoongArch/Linux support
Implement LoongArch/Linux support, including XML target description
handling based on features determined, GPR regset support, and software
breakpoint handling.
In the Linux kernel code of LoongArch, ptrace implements PTRACE_POKEUSR
and PTRACE_PEEKUSR in the arch_ptrace function, so srv_linux_usrregs is
set to yes.
With this patch on LoongArch:
$ make check-gdb TESTS="gdb.server/server-connect.exp"
[...]
# of expected passes 18
[...]
Signed-off-by: Youling Tang <tangyouling@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Diffstat (limited to 'gdb/arch')
| -rw-r--r-- | gdb/arch/loongarch.c | 12 | ||||
| -rw-r--r-- | gdb/arch/loongarch.h | 13 |
2 files changed, 24 insertions, 1 deletions
diff --git a/gdb/arch/loongarch.c b/gdb/arch/loongarch.c index 934f6e489c5..11310c1dd93 100644 --- a/gdb/arch/loongarch.c +++ b/gdb/arch/loongarch.c @@ -25,7 +25,13 @@ #include "../features/loongarch/base32.c" #include "../features/loongarch/base64.c" -static target_desc_up +#ifndef GDBSERVER +#define STATIC_IN_GDB static +#else +#define STATIC_IN_GDB +#endif + +STATIC_IN_GDB target_desc_up loongarch_create_target_description (const struct loongarch_gdbarch_features features) { /* Now we should create a new target description. */ @@ -51,6 +57,8 @@ loongarch_create_target_description (const struct loongarch_gdbarch_features fea return tdesc; } +#ifndef GDBSERVER + /* Wrapper used by std::unordered_map to generate hash for feature set. */ struct loongarch_gdbarch_features_hasher { @@ -86,3 +94,5 @@ loongarch_lookup_target_description (const struct loongarch_gdbarch_features fea loongarch_tdesc_cache.emplace (features, std::move (tdesc)); return ptr; } + +#endif /* !GDBSERVER */ diff --git a/gdb/arch/loongarch.h b/gdb/arch/loongarch.h index 9e10df967d1..8194ea66c0a 100644 --- a/gdb/arch/loongarch.h +++ b/gdb/arch/loongarch.h @@ -60,6 +60,17 @@ struct loongarch_gdbarch_features } }; +#ifdef GDBSERVER + +/* Create and return a target description that is compatible with FEATURES. + This is only used directly from the gdbserver where the created target + description is modified after it is return. */ + +target_desc_up loongarch_create_target_description + (const struct loongarch_gdbarch_features features); + +#else + /* Lookup an already existing target description matching FEATURES, or create a new target description if this is the first time we have seen FEATURES. For the same FEATURES the same target_desc is always @@ -70,4 +81,6 @@ struct loongarch_gdbarch_features const target_desc *loongarch_lookup_target_description (const struct loongarch_gdbarch_features features); +#endif /* GDBSERVER */ + #endif /* ARCH_LOONGARCH_H */ |