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authorH.J. Lu <hjl.tools@gmail.com>2010-04-08 22:32:35 +0000
committerH.J. Lu <hjl.tools@gmail.com>2010-04-08 22:32:35 +0000
commit1132471a8b57619dbb9f0183f3fc0705809c3234 (patch)
treedf16a56ac2135aebca26518dcf3f9e956f8bdd4e /gdb/i386-linux-tdep.c
parent77ab259477c5c036a4cf63c4c3538eb80864e4c5 (diff)
downloadgdb-1132471a8b57619dbb9f0183f3fc0705809c3234.tar.gz
Support i386 without SSE.
gdb/ 2010-04-08 H.J. Lu <hongjiu.lu@intel.com> * i386-linux-nat.c (have_ptrace_getfpxregs): Initialize to -1 if HAVE_PTRACE_GETFPXREGS is defined. (i386_linux_read_description): Set have_ptrace_getfpxregs and have_ptrace_getregset to 0 if ptrace PTRACE_GETFPXREGS failed. * i386-linux-tdep.c: Include "features/i386/i386-mmx-linux.c" (i386_linux_core_read_description): Return tdesc_i386_mmx_linux if .reg-xfp section doesn't exist. (_initialize_i386_linux_tdep): Call initialize_tdesc_i386_mmx_linux. * i386-linux-tdep.h (tdesc_i386_mmx_linux): New. * i386-tdep.c: Include "features/i386/i386-mmx.c". (i386_go32_init_abi): Set tdesc to tdesc_i386_mmx. (i386_validate_tdesc_p): Make org.gnu.gdb.i386.sse optional. Set xcr0 to I386_XSTATE_X87_MASK if SSE isn't available. (i386_gdbarch_init): Update comments. (_initialize_i386_tdep): Call initialize_tdesc_i386_mmx. * common/i386-xstate.h (I386_XSTATE_X87_MASK): New. * config/djgpp/fnchange.lst: Add i386 MMX XML files. * features/Makefile (i386/i386-mmx-expedite): New. (i386/i386-mmx-linux-expedite): Likewise. ($(outdir)/i386/i386-mmx.dat): Likewise. ($(outdir)/i386/i386-mmx-linux.dat): Likewise. * features/i386/i386-mmx-linux.c: New. * features/i386/i386-mmx-linux.xml: Likewise. * features/i386/i386-mmx.c: Likewise. * features/i386/i386-mmx.xml: Likewise. * regformats/i386/i386-mmx-linux.dat: Likewise. * regformats/i386/i386-mmx.dat: Likewise. * features/Makefile (WHICH): Add i386/i386-mmx and i386/i386-mmx-linux. gdb/doc/ 2010-04-08 H.J. Lu <hongjiu.lu@intel.com> * gdb.texinfo (i386 Features): Make org.gnu.gdb.i386.avx optional. Make org.gnu.gdb.i386.avx requires org.gnu.gdb.i386.avx. gdb/gdbserver/ 2010-04-08 H.J. Lu <hongjiu.lu@intel.com> * Makefile.in (clean): Also remove i386-mmx.c i386-mmx-linux.c. (i386-mmx.o): New. (i386-mmx.c): Likewise. (i386-mmx-linux.o): Likewise. (i386-mmx-linux.c): Likewise. * configure.srv (srv_i386_regobj): Add i386-mmx.o. (srv_i386_linux_regobj): Add i386-mmx-linux.o. (srv_i386_xmlfiles): Add i386/i386-mmx.xml. (srv_i386_linux_xmlfiles): Add i386/i386-mmx-linux.xml. * linux-x86-low.c (init_registers_i386_mmx_linux): New. (x86_linux_update_xmltarget): Call init_registers_i386_mmx_linux and return if ptrace PTRACE_GETFPXREGS failed in 32bit.
Diffstat (limited to 'gdb/i386-linux-tdep.c')
-rw-r--r--gdb/i386-linux-tdep.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c
index 34a19249ce6..72aced5da0d 100644
--- a/gdb/i386-linux-tdep.c
+++ b/gdb/i386-linux-tdep.c
@@ -50,6 +50,7 @@
#include <stdint.h>
#include "features/i386/i386-linux.c"
+#include "features/i386/i386-mmx-linux.c"
#include "features/i386/i386-avx-linux.c"
/* Supported register note sections. */
@@ -616,6 +617,10 @@ i386_linux_core_read_description (struct gdbarch *gdbarch,
if (section == NULL)
return NULL;
+ section = bfd_get_section_by_name (abfd, ".reg-xfp");
+ if (section == NULL)
+ return tdesc_i386_mmx_linux;
+
/* Linux/i386. */
xcr0 = i386_linux_core_read_xcr0 (gdbarch, target, abfd);
if ((xcr0 & I386_XSTATE_AVX_MASK) == I386_XSTATE_AVX_MASK)
@@ -890,5 +895,6 @@ _initialize_i386_linux_tdep (void)
/* Initialize the Linux target description */
initialize_tdesc_i386_linux ();
+ initialize_tdesc_i386_mmx_linux ();
initialize_tdesc_i386_avx_linux ();
}