Changeset 76c03152 in rtems

Timestamp:

07/09/18 11:12:56 (5 years ago)

Author:

Amaan Cheval <amaan.cheval@…>

Branches:

5, master

Children:

cf811a4

Parents:

1a19239

git-author:

Amaan Cheval <amaan.cheval@…> (07/09/18 11:12:56)

git-committer:

Joel Sherrill <joel@…> (07/11/18 20:22:44)

Message:

bsp/x86_64: Minimal bootable BSP

Current state:

• Basic context initialization and switching code.
• Stubbed console (empty functions).
• Mostly functional linker script (may need tweaks if we ever want to move away from the large code model (see: CPU_CFLAGS).
• Fully functional boot, by using FreeBSD's bootloader to load RTEMS's ELF for UEFI-awareness.

In short, the current state with this commit lets us boot, go through the system
initialization functions, and then call user application's Init task too.

Updates #2898.

Files:

• bsps/x86_64/amd64/config/amd64.cfg (added)
• bsps/x86_64/amd64/console/console.c (added)
• bsps/x86_64/amd64/headers.am (added)
• bsps/x86_64/amd64/include/bsp.h (added)
• bsps/x86_64/amd64/include/start.h (added)
• bsps/x86_64/amd64/include/tm27.h (added)
• bsps/x86_64/amd64/start/bsp_specs (added)
• bsps/x86_64/amd64/start/bspstart.c (added)
• bsps/x86_64/amd64/start/linkcmds (added)
• bsps/x86_64/amd64/start/start.c (added)
• c/src/aclocal/rtems-cpu-subdirs.m4 (modified) (1 diff)
• c/src/lib/libbsp/x86_64/Makefile.am (added)
• c/src/lib/libbsp/x86_64/acinclude.m4 (added)
• c/src/lib/libbsp/x86_64/amd64/Makefile.am (added)
• c/src/lib/libbsp/x86_64/amd64/configure.ac (added)
• c/src/lib/libbsp/x86_64/configure.ac (added)
• cpukit/configure.ac (modified) (1 diff)
• cpukit/librpc/src/xdr/xdr_float.c (modified) (1 diff)
• cpukit/score/cpu/x86_64/Makefile.am (added)
• cpukit/score/cpu/x86_64/cpu.c (added)
• cpukit/score/cpu/x86_64/headers.am (added)
• cpukit/score/cpu/x86_64/include/machine/elf_machdep.h (added)
• cpukit/score/cpu/x86_64/include/rtems/asm.h (added)
• cpukit/score/cpu/x86_64/include/rtems/score/cpu.h (added)
• cpukit/score/cpu/x86_64/include/rtems/score/cpuatomic.h (added)
• cpukit/score/cpu/x86_64/include/rtems/score/cpuimpl.h (added)
• cpukit/score/cpu/x86_64/include/rtems/score/x86_64.h (added)
• cpukit/score/cpu/x86_64/x86_64-context-initialize.c (added)
• cpukit/score/cpu/x86_64/x86_64-context-switch.S (added)

c/src/aclocal/rtems-cpu-subdirs.m4

@@ -29 +29 @@
 _RTEMS_CPU_SUBDIR([sparc64],[$1]);;
 _RTEMS_CPU_SUBDIR([v850],[$1]);;
+_RTEMS_CPU_SUBDIR([x86_64],[$1]);;
 *) AC_MSG_ERROR([Invalid RTEMS_CPU <[$]{RTEMS_CPU}>])
 esac

cpukit/configure.ac

@@ -488 +488 @@
 score/cpu/sparc64/Makefile
 score/cpu/v850/Makefile
+score/cpu/x86_64/Makefile
 score/cpu/no_cpu/Makefile
 posix/Makefile

cpukit/librpc/src/xdr/xdr_float.c

@@ -77 +77 @@
     defined(__BFIN__) || \
     defined(__m32c__) || \
-    defined(__v850)
+    defined(__v850) || \
+    defined(__x86_64__)
 
 #include <rtems/endian.h>