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2003-10-17 Andrew Cagney <cagney@redhat.com>

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* target.c (target_section_by_addr): New function.
	(do_xfer_memory): Use "target_section_by_addr".
	* target.h (target_section_by_addr): Declare.
This commit is contained in:
Andrew Cagney 2003-10-17 20:17:51 +00:00
parent 1e3ff5ad7f
commit 8db32d44ca
3 changed files with 31 additions and 14 deletions
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4
gdb/ChangeLog
View file

@ -1,5 +1,9 @@
2003-10-17 Andrew Cagney <cagney@redhat.com>
* target.c (target_section_by_addr): New function.
(do_xfer_memory): Use "target_section_by_addr".
* target.h (target_section_by_addr): Declare.
* target.h (struct target_ops): Add "to_read_partial" and
"to_write_partial", delete "to_query".
(target_read_partial, target_write_partial): Declare.

34
gdb/target.c
View file

@ -814,6 +814,21 @@ done:
return nbytes_read;
}
/* Find a section containing ADDR. */
struct section_table *
target_section_by_addr (struct target_ops *target, CORE_ADDR addr)
{
struct section_table *secp;
for (secp = target->to_sections;
secp < target->to_sections_end;
secp++)
{
if (addr >= secp->addr && addr < secp->endaddr)
return secp;
}
return NULL;
}
/* Read LEN bytes of target memory at address MEMADDR, placing the results in
GDB's memory at MYADDR. Returns either 0 for success or an errno value
if any error occurs.
@ -861,22 +876,15 @@ do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
if (!write && trust_readonly)
{
struct section_table *secp;
/* User-settable option, "trust-readonly-sections". If true,
then memory from any SEC_READONLY bfd section may be read
directly from the bfd file. */
struct section_table *secp;
for (secp = current_target.to_sections;
secp < current_target.to_sections_end;
secp++)
{
if (bfd_get_section_flags (secp->bfd, secp->the_bfd_section)
& SEC_READONLY)
if (memaddr >= secp->addr && memaddr < secp->endaddr)
return xfer_memory (memaddr, myaddr, len, 0,
attrib, &current_target);
}
secp = target_section_by_addr (&current_target, memaddr);
if (secp != NULL
&& (bfd_get_section_flags (secp->bfd, secp->the_bfd_section)
& SEC_READONLY))
return xfer_memory (memaddr, myaddr, len, 0, attrib, &current_target);
}
/* The quick case is that the top target can handle the transfer. */

5
gdb/target.h
View file

@ -1147,6 +1147,11 @@ struct section_table
bfd *bfd; /* BFD file pointer */
};
/* Return the "section" containing the specified address. */
struct section_table *target_section_by_addr (struct target_ops *target,
CORE_ADDR addr);
/* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
Returns 0 if OK, 1 on error. */