diff options
Diffstat (limited to 'gdb/i386-linux-tdep.c')
| -rw-r--r-- | gdb/i386-linux-tdep.c | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c index 4ee6874..7feb21d 100644 --- a/gdb/i386-linux-tdep.c +++ b/gdb/i386-linux-tdep.c @@ -648,6 +648,35 @@ i386_linux_core_read_description (struct gdbarch *gdbarch, return tdesc_i386_mmx_linux; } +/* Similar to i386_supply_fpregset, but use XSAVE extended state. */ + +static void +i386_linux_supply_xstateregset (const struct regset *regset, + struct regcache *regcache, int regnum, + const void *xstateregs, size_t len) +{ + i387_supply_xsave (regcache, regnum, xstateregs); +} + +/* Similar to i386_collect_fpregset, but use XSAVE extended state. */ + +static void +i386_linux_collect_xstateregset (const struct regset *regset, + const struct regcache *regcache, + int regnum, void *xstateregs, size_t len) +{ + i387_collect_xsave (regcache, regnum, xstateregs, 1); +} + +/* Register set definitions. */ + +static const struct regset i386_linux_xstateregset = + { + NULL, + i386_linux_supply_xstateregset, + i386_linux_collect_xstateregset + }; + /* Iterate over core file register note sections. */ static void @@ -658,14 +687,17 @@ i386_linux_iterate_over_regset_sections (struct gdbarch *gdbarch, { struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); - cb (".reg", 68, "general-purpose", cb_data); + cb (".reg", 68, &i386_gregset, NULL, cb_data); if (tdep->xcr0 & X86_XSTATE_AVX) - cb (".reg-xstate", X86_XSTATE_MAX_SIZE, "XSAVE extended state", cb_data); + /* Use max size for writing, accept any size when reading. */ + cb (".reg-xstate", regcache ? X86_XSTATE_MAX_SIZE : 0, + &i386_linux_xstateregset, "XSAVE extended state", cb_data); else if (tdep->xcr0 & X86_XSTATE_SSE) - cb (".reg-xfp", 512, "extended floating-point", cb_data); + cb (".reg-xfp", 512, &i386_fpregset, "extended floating-point", + cb_data); else - cb (".reg2", 108, "floating-point", cb_data); + cb (".reg2", 108, &i386_fpregset, NULL, cb_data); } /* Linux kernel shows PC value after the 'int $0x80' instruction even if |