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import gdb-1999-10-18 snapshot

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This commit is contained in:
Jason Molenda
1999-10-19 02:47:02 +00:00
parent 446a06c9b8
commit 917317f4c6
45 changed files with 2287 additions and 2491 deletions
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48
gdb/valprint.c
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@ -37,6 +37,9 @@
/* Prototypes for local functions */
static int partial_memory_read (CORE_ADDR memaddr, char *myaddr,
int len, int *errnoptr);
static void print_hex_chars PARAMS ((GDB_FILE *, unsigned char *,
unsigned int));
@ -1149,6 +1152,47 @@ val_print_array_elements (type, valaddr, address, stream, format, deref_ref,
}
}
/* Read LEN bytes of target memory at address MEMADDR, placing the
results in GDB's memory at MYADDR. Returns a count of the bytes
actually read, and optionally an errno value in the location
pointed to by ERRNOPTR if ERRNOPTR is non-null. */
/* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
function be eliminated. */
static int
partial_memory_read (CORE_ADDR memaddr, char *myaddr, int len, int *errnoptr)
{
int nread; /* Number of bytes actually read. */
int errcode; /* Error from last read. */
/* First try a complete read. */
errcode = target_read_memory (memaddr, myaddr, len);
if (errcode == 0)
{
/* Got it all. */
nread = len;
}
else
{
/* Loop, reading one byte at a time until we get as much as we can. */
for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--)
{
errcode = target_read_memory (memaddr++, myaddr++, 1);
}
/* If an error, the last read was unsuccessful, so adjust count. */
if (errcode != 0)
{
nread--;
}
}
if (errnoptr != NULL)
{
*errnoptr = errcode;
}
return (nread);
}
/* Print a string from the inferior, starting at ADDR and printing up to LEN
characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing
stops at the first null byte, otherwise printing proceeds (including null
@ -1208,7 +1252,7 @@ val_print_string (addr, len, width, stream)
bufptr = buffer;
old_chain = make_cleanup (free, buffer);
nfetch = target_read_memory_partial (addr, bufptr, len * width, &errcode)
nfetch = partial_memory_read (addr, bufptr, len * width, &errcode)
/ width;
addr += nfetch * width;
bufptr += nfetch * width;
@ -1234,7 +1278,7 @@ val_print_string (addr, len, width, stream)
bufsize += nfetch;
/* Read as much as we can. */
nfetch = target_read_memory_partial (addr, bufptr, nfetch * width, &errcode)
nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode)
/ width;
/* Scan this chunk for the null byte that terminates the string