gdb: fix vfork with multiple threads

[deliverable/binutils-gdb.git] / gdb / riscv-tdep.h

diff --git a/gdb/riscv-tdep.h b/gdb/riscv-tdep.h
index 42939105b088cac001a3e17204e6bfde9e17703f..62bf4797d02ee8cfc41926fdf498d4f173967c4d 100644 (file)
--- a/gdb/riscv-tdep.h
+++ b/gdb/riscv-tdep.h
@@ -1,7 +1,7 @@
 /* Target-dependent header for the RISC-V architecture, for GDB, the
    GNU Debugger.
 
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -53,7 +53,11 @@ enum
 
   RISCV_PRIV_REGNUM = 4161,
 
-  RISCV_LAST_REGNUM = RISCV_PRIV_REGNUM
+  RISCV_V0_REGNUM,
+
+  RISCV_V31_REGNUM = RISCV_V0_REGNUM + 31,
+
+  RISCV_LAST_REGNUM = RISCV_V31_REGNUM
 };
 
 /* RiscV DWARF register numbers.  */
@@ -63,6 +67,8 @@ enum
   RISCV_DWARF_REGNUM_X31 = 31,
   RISCV_DWARF_REGNUM_F0 = 32,
   RISCV_DWARF_REGNUM_F31 = 63,
+  RISCV_DWARF_REGNUM_V0 = 96,
+  RISCV_DWARF_REGNUM_V31 = 127,
   RISCV_DWARF_FIRST_CSR = 4096,
   RISCV_DWARF_LAST_CSR = 8191,
 };
@@ -137,4 +143,30 @@ extern bool riscv_abi_embedded (struct gdbarch *gdbarch);
 extern std::vector<CORE_ADDR> riscv_software_single_step
   (struct regcache *regcache);
 
+/* Supply register REGNUM from the buffer REGS (length LEN) into
+   REGCACHE.  REGSET describes the layout of the buffer.  If REGNUM is -1
+   then all registers described by REGSET are supplied.
+
+   The register RISCV_ZERO_REGNUM should not be described by REGSET,
+   however, this register (which always has the value 0) will be supplied
+   by this function if requested.
+
+   The registers RISCV_CSR_FFLAGS_REGNUM and RISCV_CSR_FRM_REGNUM should
+   not be described by REGSET, however, these register will be provided if
+   requested assuming either:
+   (a) REGCACHE already contains the value of RISCV_CSR_FCSR_REGNUM, or
+   (b) REGSET describes the location of RISCV_CSR_FCSR_REGNUM in the REGS
+       buffer.
+
+   This function can be used as the supply function for either x-regs or
+   f-regs when loading corefiles, and doesn't care which abi is currently
+   in use.  */
+
+extern void riscv_supply_regset (const struct regset *regset,
+                                 struct regcache *regcache, int regnum,
+                                 const void *regs, size_t len);
+
+/* The names of the RISC-V target description features.  */
+extern const char *riscv_feature_name_csr;
+
 #endif /* RISCV_TDEP_H */