deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

INCLUDE_APPLICATE_SOURCE defined to remove compiler warnings. Untested but should work on all AVR builds.

Browse source
This commit is contained in:
dak664 2009-07-16 17:17:22 +00:00
parent 62b380b0a6
commit 4531d66986
1 changed files with 54 additions and 31 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

85
core/loader/elfloader-avr.c
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: elfloader-avr.c,v 1.6 2009/02/27 14:28:02 nvt-se Exp $
* @(#)$Id: elfloader-avr.c,v 1.7 2009/07/16 17:17:22 dak664 Exp $
*/
#include <stdio.h>
@ -95,10 +95,19 @@ elfloader_arch_allocate_ram(int size)
void*
elfloader_arch_allocate_rom(int size)
{
return 0x8000;
return (void *)0x8000;
}
/*---------------------------------------------------------------------------*/
/* Eliminate compiler warnings for (non-functional) code when flash requires 32 bit addresses and pointers are 16 bit U*/
#define INCLUDE_APPLICATE_SOURCE 1
#ifdef __GNUC__
#if (FLASHEND > USHRT_MAX) && (SIZEOF_POINTER__ <= 2)
#undef INCLUDE_APPLICATE_SOURCE
#define INCLUDE_APPLICATE_SOURCE 0
#endif
#endif
#if INCLUDE_APPLICATE_SOURCE
BOOTLOADER_SECTION void
elfloader_arch_write_rom(int fd, unsigned short textoff, unsigned int size, char *mem)
@ -150,6 +159,7 @@ elfloader_arch_write_rom(int fd, unsigned short textoff, unsigned int size, char
SREG = sreg;
}
}
#endif /* INCLUDE_APPLICATE_SOURCE */
/*---------------------------------------------------------------------------*/
static void
@ -190,7 +200,7 @@ elfloader_arch_relocate(int fd, unsigned int sectionoffset,
* Do not use >> 1 for division because branch instructions use
* signed offsets.
*/
int16_t a = (((int16_t)addr - rela->r_offset -2) / 2);
int16_t a = (((unsigned int)addr - rela->r_offset -2) / 2);
instr[0] |= (a << 3) & 0xf8;
instr[1] |= (a >> 5) & 0x03;
cfs_write(fd, instr, 2);
@ -201,7 +211,7 @@ elfloader_arch_relocate(int fd, unsigned int sectionoffset,
* Relocation is relative to PC. -2: RJMP adds 2 to PC.
* Do not use >> 1 for division because RJMP uses signed offsets.
*/
int16_t a = (int16_t)addr / 2;
int16_t a = (unsigned int)addr / 2;
a -= rela->r_offset / 2;
a--;
instr[0] |= a & 0xff;
@ -211,64 +221,77 @@ elfloader_arch_relocate(int fd, unsigned int sectionoffset,
break;
case R_AVR_16: /* 4 */
instr[0] = (int16_t)addr & 0xff;
instr[1] = ((int16_t)addr >> 8) & 0xff;
instr[0] = (unsigned int)addr & 0xff;
instr[1] = ((unsigned int)addr >> 8) & 0xff;
cfs_write(fd, instr, 2);
break;
case R_AVR_16_PM: /* 5 */
addr = ((int16_t)addr >> 1);
instr[0] = (int16_t)addr & 0xff;
instr[1] = ((int16_t)addr >> 8) & 0xff;
addr = (char *)((unsigned int)addr >> 1);
instr[0] = (unsigned int)addr & 0xff;
instr[1] = ((unsigned int)addr >> 8) & 0xff;
cfs_write(fd, instr, 2);
break;
case R_AVR_LO8_LDI: /* 6 */
write_ldi(fd, instr, (int16_t)addr);
write_ldi(fd, instr, (unsigned int)addr);
break;
case R_AVR_HI8_LDI: /* 7 */
write_ldi(fd, instr, (int16_t)addr >> 8);
write_ldi(fd, instr, (unsigned int)addr >> 8);
break;
#if INCLUDE_APPLICATIBLE_CODE /* 32 bit AVRs */
case R_AVR_HH8_LDI: /* 8 */
write_ldi(fd, instr, (int16_t)addr >> 16);
write_ldi(fd, instr, (unsigned int)addr >> 16);
break;
#endif
case R_AVR_LO8_LDI_NEG: /* 9 */
addr = (0 - (int16_t)addr);
write_ldi(fd, instr, (int16_t)addr);
addr = (char *) (0 - (unsigned int)addr);
write_ldi(fd, instr, (unsigned int)addr);
break;
case R_AVR_HI8_LDI_NEG: /* 10 */
addr = (0 - (int16_t)addr);
write_ldi(fd, instr, (int16_t)addr >> 8);
addr = (char *) (0 - (unsigned int)addr);
write_ldi(fd, instr, (unsigned int)addr >> 8);
break;
#if INCLUDE_APPLICATE_SOURCE /* 32 bit AVRs */
case R_AVR_HH8_LDI_NEG: /* 11 */
addr = (0 - (int16_t)addr);
write_ldi(fd, instr, (int16_t)addr >> 16);
addr = (char *)(0 - (unsigned int)addr);
write_ldi(fd, instr, (unsigned int)addr >> 16);
break;
#endif
case R_AVR_LO8_LDI_PM: /* 12 */
write_ldi(fd, instr, (int16_t)addr >> 1);
write_ldi(fd, instr, (unsigned int)addr >> 1);
break;
case R_AVR_HI8_LDI_PM: /* 13 */
write_ldi(fd, instr, (int16_t)addr >> 9);
break;
case R_AVR_HH8_LDI_PM: /* 14 */
write_ldi(fd, instr, (int16_t)addr >> 17);
write_ldi(fd, instr, (unsigned int)addr >> 9);
break;
#if INCLUDE_APPLICATE_SOURCE /* 32 bit AVRs */
case R_AVR_HH8_LDI_PM: /* 14 */
write_ldi(fd, instr, (unsigned int)addr >> 17);
break;
#endif
case R_AVR_LO8_LDI_PM_NEG: /* 15 */
addr = (0 - (int16_t)addr);
write_ldi(fd, instr, (int16_t)addr >> 1);
addr = (char *) (0 - (unsigned int)addr);
write_ldi(fd, instr, (unsigned int)addr >> 1);
break;
case R_AVR_HI8_LDI_PM_NEG: /* 16 */
addr = (0 - (int16_t)addr);
write_ldi(fd, instr, (int16_t)addr >> 9);
addr = (char *) (0 - (unsigned int)addr);
write_ldi(fd, instr, (unsigned int)addr >> 9);
break;
#if INCLUDE_APPLICATE_SOURCE /* 32 bit AVRs */
case R_AVR_HH8_LDI_PM_NEG: /* 17 */
addr = (0 - (int16_t)addr);
write_ldi(fd, instr, (int16_t)addr >> 17);
addr = (char *) (0 - (unsigned int)addr);
write_ldi(fd, instr, (unsigned int)addr >> 17);
break;
#endif
case R_AVR_CALL: /* 18 */
/* old solution:
@ -278,8 +301,8 @@ elfloader_arch_relocate(int fd, unsigned int sectionoffset,
*/
/* new solution */
instr[2] = (u8_t) ((int16_t)addr) & 0xff;
instr[3] = ((int16_t)addr) >> 8;
instr[2] = (u8_t) ((unsigned int)addr) & 0xff;
instr[3] = ((unsigned int)addr) >> 8;
cfs_write(fd, instr, 4);
break;