mirror of
git://projects.qi-hardware.com/ben-blinkenlights.git
synced 2024-11-30 19:12:48 +02:00
d7874e306c
- series, low-addr.patch: record the lowest address touched (only for ihex, all others default to 0) - series, skip-low-addr.patch: skip untouched addresses in avr_read and avr_write
143 lines
4.1 KiB
Diff
143 lines
4.1 KiB
Diff
Index: avrdude/avrdude-5.10/avrpart.h
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===================================================================
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--- avrdude.orig/avrdude-5.10/avrpart.h 2011-03-08 23:40:10.000000000 -0300
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+++ avrdude/avrdude-5.10/avrpart.h 2011-03-08 23:40:13.000000000 -0300
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@@ -185,6 +185,8 @@
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unsigned char * buf; /* pointer to memory buffer */
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OPCODE * op[AVR_OP_MAX]; /* opcodes */
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+
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+ int low_addr; /* lowest address used, in bytes */
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} AVRMEM;
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#ifdef __cplusplus
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Index: avrdude/avrdude-5.10/config_gram.y
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===================================================================
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--- avrdude.orig/avrdude-5.10/config_gram.y 2011-03-08 23:40:10.000000000 -0300
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+++ avrdude/avrdude-5.10/config_gram.y 2011-03-08 23:40:13.000000000 -0300
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@@ -1209,6 +1209,7 @@
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}
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mem_specs
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{
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+ current_mem->low_addr = current_mem->size;
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ladd(current_part->mem, current_mem);
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current_mem = NULL;
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} |
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Index: avrdude/avrdude-5.10/fileio.c
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===================================================================
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--- avrdude.orig/avrdude-5.10/fileio.c 2011-03-08 23:40:10.000000000 -0300
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+++ avrdude/avrdude-5.10/fileio.c 2011-03-08 23:40:13.000000000 -0300
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@@ -52,7 +52,7 @@
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char * outfile, FILE * outf);
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static int ihex2b(char * infile, FILE * inf,
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- unsigned char * outbuf, int bufsize);
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+ unsigned char * outbuf, int bufsize, int *low_addr);
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static int b2srec(unsigned char * inbuf, int bufsize,
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int recsize, int startaddr,
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@@ -69,7 +69,8 @@
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char * filename, FILE * f, unsigned char * buf, int size);
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static int fileio_ihex(struct fioparms * fio,
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- char * filename, FILE * f, unsigned char * buf, int size);
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+ char * filename, FILE * f, unsigned char * buf, int size,
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+ int *low_addr);
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static int fileio_srec(struct fioparms * fio,
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char * filename, FILE * f, unsigned char * buf, int size);
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@@ -262,7 +263,7 @@
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*
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* */
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static int ihex2b(char * infile, FILE * inf,
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- unsigned char * outbuf, int bufsize)
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+ unsigned char * outbuf, int bufsize, int *low_addr)
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{
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char buffer [ MAX_LINE_LEN ];
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unsigned char * buf;
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@@ -271,7 +272,7 @@
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int lineno;
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int len;
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struct ihexrec ihex;
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- int rc;
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+ int rc, lowest;
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lineno = 0;
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buf = outbuf;
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@@ -279,6 +280,7 @@
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maxaddr = 0;
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offsetaddr = 0;
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nextaddr = 0;
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+ lowest = bufsize;
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while (fgets((char *)buffer,MAX_LINE_LEN,inf)!=NULL) {
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lineno++;
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@@ -313,11 +315,14 @@
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for (i=0; i<ihex.reclen; i++) {
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buf[nextaddr+i-offsetaddr] = ihex.data[i];
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}
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+ if (nextaddr-offsetaddr < lowest)
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+ lowest = nextaddr-offsetaddr;
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if (nextaddr+ihex.reclen > maxaddr)
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maxaddr = nextaddr+ihex.reclen;
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break;
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case 1: /* end of file record */
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+ *low_addr = lowest;
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return maxaddr-offsetaddr;
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break;
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@@ -354,6 +359,7 @@
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"file \"%s\"\n",
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progname, infile);
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+ *low_addr = lowest;
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return maxaddr-offsetaddr;
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}
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@@ -777,7 +783,8 @@
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static int fileio_ihex(struct fioparms * fio,
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- char * filename, FILE * f, unsigned char * buf, int size)
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+ char * filename, FILE * f, unsigned char * buf, int size,
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+ int *low_addr)
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{
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int rc;
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@@ -790,7 +797,7 @@
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break;
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case FIO_READ:
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- rc = ihex2b(filename, f, buf, size);
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+ rc = ihex2b(filename, f, buf, size, low_addr);
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if (rc < 0)
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return -1;
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break;
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@@ -1021,6 +1028,7 @@
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struct fioparms fio;
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AVRMEM * mem;
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int using_stdio;
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+ int low_addr = 0;
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mem = avr_locate_mem(p, memtype);
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if (mem == NULL) {
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@@ -1113,7 +1121,7 @@
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switch (format) {
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case FMT_IHEX:
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- rc = fileio_ihex(&fio, fname, f, buf, size);
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+ rc = fileio_ihex(&fio, fname, f, buf, size, &low_addr);
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break;
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case FMT_SREC:
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@@ -1149,6 +1157,8 @@
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*/
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rc = avr_mem_hiaddr(mem);
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}
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+ if (op == FIO_READ && low_addr < mem->low_addr)
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+ mem->low_addr = low_addr;
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}
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if (format != FMT_IMM && !using_stdio) {
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fclose(f);
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