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| author | John Baldwin <jhb@FreeBSD.org> | 2023-08-28 14:18:19 -0700 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2023-08-28 14:18:19 -0700 |
| commit | 9848bf83750ba897090320137221977584405e06 (patch) | |
| tree | adbfd12b2c6f477c31549718500a2819f8c6fed3 /gdb/i386-linux-nat.c | |
| parent | b42405a159450004f2e2497e2b2d81bcac85c947 (diff) | |
| download | gdb-9848bf83750ba897090320137221977584405e06.zip gdb-9848bf83750ba897090320137221977584405e06.tar.gz gdb-9848bf83750ba897090320137221977584405e06.tar.bz2 | |
gdb: Support XSAVE layouts for the current host in the Linux x86 targets.
Note that this uses the CPUID instruction to determine the total size
of the XSAVE register set. If there is a way to fetch the register set
size using ptrace that would probably be better.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
Diffstat (limited to 'gdb/i386-linux-nat.c')
| -rw-r--r-- | gdb/i386-linux-nat.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gdb/i386-linux-nat.c b/gdb/i386-linux-nat.c index a524fdc..7e0572e 100644 --- a/gdb/i386-linux-nat.c +++ b/gdb/i386-linux-nat.c @@ -330,7 +330,9 @@ store_fpregs (const struct regcache *regcache, int tid, int regno) static int fetch_xstateregs (struct regcache *regcache, int tid) { - char xstateregs[X86_XSTATE_MAX_SIZE]; + struct gdbarch *gdbarch = regcache->arch (); + const i386_gdbarch_tdep *tdep = gdbarch_tdep<i386_gdbarch_tdep> (gdbarch); + char xstateregs[tdep->xsave_layout.sizeof_xsave]; struct iovec iov; if (have_ptrace_getregset != TRIBOOL_TRUE) @@ -353,7 +355,9 @@ fetch_xstateregs (struct regcache *regcache, int tid) static int store_xstateregs (const struct regcache *regcache, int tid, int regno) { - char xstateregs[X86_XSTATE_MAX_SIZE]; + struct gdbarch *gdbarch = regcache->arch (); + const i386_gdbarch_tdep *tdep = gdbarch_tdep<i386_gdbarch_tdep> (gdbarch); + char xstateregs[tdep->xsave_layout.sizeof_xsave]; struct iovec iov; if (have_ptrace_getregset != TRIBOOL_TRUE) |