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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-07-18 19:27:50 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-07-18 19:27:50 +0000 |
commit | 80445331528a5d1b0ce85f095fe27a3b7fdf5a9e (patch) | |
tree | ca7d09bddb0a44ead621008d207cb27132864124 /c/src/exec/score/cpu/unix | |
parent | all built successfully after merge (diff) | |
download | rtems-80445331528a5d1b0ce85f095fe27a3b7fdf5a9e.tar.bz2 |
merged Linux UNIX simulator support (C)
Diffstat (limited to 'c/src/exec/score/cpu/unix')
-rw-r--r-- | c/src/exec/score/cpu/unix/cpu.c | 22 | ||||
-rw-r--r-- | c/src/exec/score/cpu/unix/cpu.h | 25 | ||||
-rw-r--r-- | c/src/exec/score/cpu/unix/unix.h | 8 |
3 files changed, 52 insertions, 3 deletions
diff --git a/c/src/exec/score/cpu/unix/cpu.c b/c/src/exec/score/cpu/unix/cpu.c index acd53e3fd2..a7e1b3bfce 100644 --- a/c/src/exec/score/cpu/unix/cpu.c +++ b/c/src/exec/score/cpu/unix/cpu.c @@ -391,6 +391,28 @@ void _CPU_Context_Initialize( *(addr + RP_OFF) = jmp_addr + ADDR_ADJ_OFFSET; *(addr + SP_OFF) = (unsigned32)(_stack_high - CPU_FRAME_SIZE); *(addr + FP_OFF) = (unsigned32)(_stack_high); + +#elif defined(i386) + + /* + * This information was gathered by disassembling setjmp(). + */ + + stack_ptr = _stack_high - CPU_FRAME_SIZE; + *(addr + EBX_OFF) = 0xFEEDFEED; + *(addr + ESI_OFF) = 0xDEADDEAD; + *(addr + EDI_OFF) = 0xDEAFDEAF; + *(addr + EBP_OFF) = stack_ptr; + *(addr + ESP_OFF) = stack_ptr; + *(addr + RET_OFF) = jmp_addr; + + + addr = (unsigned32 *) stack_ptr; + + addr[ 0 ] = jmp_addr; + addr[ 1 ] = (unsigned32) stack_ptr; + addr[ 2 ] = (unsigned32) stack_ptr; + #else #error "UNKNOWN CPU!!!" #endif diff --git a/c/src/exec/score/cpu/unix/cpu.h b/c/src/exec/score/cpu/unix/cpu.h index 091f0915b6..90eb6f5216 100644 --- a/c/src/exec/score/cpu/unix/cpu.h +++ b/c/src/exec/score/cpu/unix/cpu.h @@ -264,7 +264,7 @@ extern "C" { #if defined(hppa1_1) #define CPU_STACK_GROWS_UP TRUE -#elif defined(sparc) +#elif defined(sparc) || defined(i386) #define CPU_STACK_GROWS_UP FALSE #else #error "unknown CPU!!" @@ -362,6 +362,27 @@ extern "C" { #endif #endif +#if defined(i386) + +#ifdef RTEMS_NEWLIB +#error "Newlib not installed" +#endif + +/* + * For Linux 1.1 + */ + +#ifdef RTEMS_UNIXLIB +#define EBX_OFF 0 +#define ESI_OFF 1 +#define EDI_OFF 2 +#define EBP_OFF 3 +#define ESP_OFF 4 +#define RET_OFF 5 +#endif + +#endif + #if defined(sparc) /* @@ -515,6 +536,8 @@ EXTERN void (*_CPU_Thread_dispatch_pointer)(); #define CPU_FRAME_SIZE (32 * 4) #elif defined(sparc) #define CPU_FRAME_SIZE (112) /* based on disassembled test code */ +#elif defined(i386) +#define CPU_FRAME_SIZE (24) /* return address, sp, and bp pushed plus fudge */ #else #error "Unknown CPU!!!" #endif diff --git a/c/src/exec/score/cpu/unix/unix.h b/c/src/exec/score/cpu/unix/unix.h index 10c4b6917c..91afec9517 100644 --- a/c/src/exec/score/cpu/unix/unix.h +++ b/c/src/exec/score/cpu/unix/unix.h @@ -64,11 +64,15 @@ extern "C" { #if defined(hpux) -#define RTEMS_MODEL_NAME "hpux" +#define RTEMS_MODEL_NAME "HP-UX" #elif defined(solaris) -#define RTEMS_MODEL_NAME "solaris" +#define RTEMS_MODEL_NAME "Solaris" + +#elif defined(linux) + +#define RTEMS_MODEL_NAME "Linux" #else |