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Add gdbsym.c object to help with running gdb-to-qemu

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This commit is contained in:
Michael Brown 2007-06-30 22:43:31 +01:00
parent e1646b4080
commit 8f6a4e8140
4 changed files with 36 additions and 3 deletions
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28
src/arch/i386/core/gdbsym.c Normal file
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@ -0,0 +1,28 @@
#include <stdio.h>
#include <gpxe/init.h>
#include <console.h>
#include <realmode.h>
extern char __text[];
extern char __rodata[];
extern char __data[];
extern char __bss[];
extern char __text16[];
extern char __data16[];
static void gdb_symbol_line ( void ) {
printf ( "Commands to start up gdb:\n\n" );
printf ( "gdb\n" );
printf ( "target remote localhost:1234\n" );
printf ( "add-symbol-file symbols %#lx", virt_to_phys ( __text ) );
printf ( " -s .rodata %#lx", virt_to_phys ( __rodata ) );
printf ( " -s .data %#lx", virt_to_phys ( __data ) );
printf ( " -s .bss %#lx", virt_to_phys ( __bss ) );
printf ( " -s .text16 %#x", ( ( rm_cs << 4 ) + (int)__text16 ) );
printf ( " -s .data16 %#x", ( ( rm_ds << 4 ) + (int)__data16 ) );
printf ( "\n" );
getkey();
}
INIT_FN ( INIT_GDBSYM, gdb_symbol_line, NULL, NULL );

1
src/config.h
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@ -143,5 +143,6 @@
#undef BUILD_ID /* Include a custom build ID string,
* e.g "test-foo" */
#undef NULL_TRAP /* Attempt to catch NULL function calls */
#define DUMP_GDBSYM /* Dump GDB symbol table information */
/* @END general.h */

5
src/core/config.c
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@ -184,6 +184,9 @@ REQUIRE_OBJECT ( dhcp_cmd );
* Drag in miscellaneous objects
*
*/
#ifdef NULL_TRAP
#ifdef NULL_TRAP
REQUIRE_OBJECT ( nulltrap );
#endif
#ifdef DUMP_GDBSYM
REQUIRE_OBJECT ( gdbsym );
#endif

5
src/include/gpxe/init.h
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@ -36,8 +36,9 @@ struct init_fn {
/* Use double digits to avoid problems with "10" < "9" on alphabetic sort */
#define INIT_CONSOLE 02
#define INIT_CPU 03
#define INIT_TIMERS 04
#define INIT_GDBSYM 03
#define INIT_CPU 04
#define INIT_TIMERS 05
#define INIT_LOADBUF 08
#define INIT_PCMCIA 09
#define INIT_RPC 11