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merged Linux UNIX simulator support (C)

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This commit is contained in:
Joel Sherrill
1995-07-18 19:27:50 +00:00
parent f67ad3d54a
commit 8044533152
6 changed files with 76 additions and 7 deletions
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c/src/exec/score/cpu/i386/cpu.c
+1 -2
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@@ -73,7 +73,6 @@ void _CPU_Initialize(
*/
#if __GO32__
#include <cpu.h>
#include <go32.h>
#include <dpmi.h>
#endif /* __GO32__ */
@@ -89,7 +88,7 @@ void _CPU_ISR_install_raw_handler(
*old_handler = 0; /* XXX not supported */
handler_info.pm_offset = new_handler;
handler_info.pm_offset = (u_long) new_handler;
handler_info.pm_selector = _go32_my_cs();
/* install the IDT entry */
c/src/exec/score/cpu/unix/cpu.c
+22
View File
@@ -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
c/src/exec/score/cpu/unix/cpu.h
+24 -1
View File
@@ -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
c/src/exec/score/cpu/unix/unix.h
+6 -2
View File
@@ -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
cpukit/score/cpu/i386/cpu.c
+1 -2
View File
@@ -73,7 +73,6 @@ void _CPU_Initialize(
*/
#if __GO32__
#include <cpu.h>
#include <go32.h>
#include <dpmi.h>
#endif /* __GO32__ */
@@ -89,7 +88,7 @@ void _CPU_ISR_install_raw_handler(
*old_handler = 0; /* XXX not supported */
handler_info.pm_offset = new_handler;
handler_info.pm_offset = (u_long) new_handler;
handler_info.pm_selector = _go32_my_cs();
/* install the IDT entry */
cpukit/score/cpu/unix/cpu.c
+22
View File
@@ -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