1 files changed, 0 insertions, 142 deletions
diff --git a/contrib/syslinux/latest/com32/gdbstub/main.c b/contrib/syslinux/latest/com32/gdbstub/main.c
deleted file mode 100644
index 2ff9f28..0000000
--- a/contrib/syslinux/latest/com32/gdbstub/main.c
+++ /dev/null
@@ -1,142 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <console.h>
-#include <com32.h>
-#include <syslinux/loadfile.h>
-#include "serial.h"
-
-#define X86_INT_DB      1
-#define X86_INT_BP      3
-#define COM32_IDT       ((void*)0x100000)
-#define COM32_LOAD_ADDR ((void*)0x101000)
-#define STACK_SIZE      0x1000
-
-extern char _start[], _end[];
-
-struct reloc_info {
-    void *data;
-    size_t len;
-    uint32_t old_esp;
-    uint32_t reloc_base;
-};
-
-static inline void error(const char *msg)
-{
-    fputs(msg, stderr);
-}
-
-static inline uint32_t reloc_ptr(struct reloc_info *ri, void *ptr)
-{
-    return ri->reloc_base + (uint32_t) ((char *)ptr - _start);
-}
-
-static void hijack_interrupt(int intn, uint32_t handler)
-{
-    struct {
-	uint32_t lo;
-	uint32_t hi;
-    } *idt = COM32_IDT;
-
-    idt[intn].lo = (idt[intn].lo & 0xffff0000) | (handler & 0x0000ffff);
-    idt[intn].hi = (idt[intn].hi & 0x0000ffff) | (handler & 0xffff0000);
-}
-
-static void shift_cmdline(struct com32_sys_args *com32)
-{
-    char *p;
-
-    /* Skip leading whitespace */
-    for (p = com32->cs_cmdline; *p != '\0' && *p == ' '; p++) ;
-
-    /* Skip first word */
-    for (; *p != '\0' && *p != ' '; p++) ;
-
-    /* Skip whitespace after first word */
-    for (; *p != '\0' && *p == ' '; p++) ;
-
-    com32->cs_cmdline = p;
-}
-
-static __noreturn reloc_entry(struct reloc_info *ri)
-{
-    extern char int_handler[];
-    size_t stack_frame_size = sizeof(struct com32_sys_args) + 4;
-    struct com32_sys_args *com32;
-    uint32_t module_esp;
-
-    hijack_interrupt(X86_INT_DB, reloc_ptr(ri, int_handler));
-    hijack_interrupt(X86_INT_BP, reloc_ptr(ri, int_handler));
-
-    /* Copy module to load address */
-    memcpy(COM32_LOAD_ADDR, ri->data, ri->len);
-
-    /* Copy stack frame onto module stack */
-    module_esp = (ri->reloc_base - stack_frame_size) & ~15;
-    memcpy((void *)module_esp, (void *)ri->old_esp, stack_frame_size);
-
-    /* Fix up command line */
-    com32 = (struct com32_sys_args *)(module_esp + 4);
-    shift_cmdline(com32);
-
-    /* Set up CPU state to run module and enter GDB */
-    asm volatile ("movl %0, %%esp\n\t"
-		  "pushf\n\t"
-		  "pushl %%cs\n\t"
-		  "pushl %1\n\t"
-		  "jmp *%2\n\t"::"r" (module_esp),
-		  "c"(COM32_LOAD_ADDR), "r"(reloc_ptr(ri, int_handler))
-	);
-    for (;;) ;			/* shut the compiler up */
-}
-
-static inline __noreturn reloc(void *ptr, size_t len)
-{
-    extern uint32_t __entry_esp;
-    size_t total_size = _end - _start;
-    __noreturn(*entry_fn) (struct reloc_info *);
-    struct reloc_info ri;
-    uint32_t esp;
-    char *dest;
-
-    /* Calculate relocation address, preserve current stack */
-    asm volatile ("movl %%esp, %0\n\t":"=m" (esp));
-    dest = (char *)((esp - STACK_SIZE - total_size) & ~3);
-
-    /* Calculate entry point in relocated code */
-    entry_fn = (void *)(dest + ((char *)reloc_entry - _start));
-
-    /* Copy all sections to relocation address */
-    printf("Relocating %d bytes from %p to %p\n", total_size, _start, dest);
-    memcpy(dest, _start, total_size);
-
-    /* Call into relocated code */
-    ri.data = ptr;
-    ri.len = len;
-    ri.old_esp = __entry_esp;
-    ri.reloc_base = (uint32_t) dest;
-    entry_fn(&ri);
-}
-
-int main(int argc, char *argv[])
-{
-    void *data;
-    size_t data_len;
-
-    openconsole(&dev_null_r, &dev_stdcon_w);
-
-    if (argc < 2) {
-	error("Usage: gdbstub.c32 com32_file arguments...\n");
-	return 1;
-    }
-
-    if (loadfile(argv[1], &data, &data_len)) {
-	error("Unable to load file\n");
-	return 1;
-    }
-
-    serial_init();
-
-    /* No more lib calls after this point */
-    reloc(data, data_len);
-}