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Share code on to_xfer_partial for tfile and ctf target

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In the to_xfer_partial implementations of ctf and tfile, the code on
reading from read-only sections is duplicated.  This patch moves it to
a separate function exec_read_partial_read_only.

gdb:

2014-02-23  Yao Qi  <yao@codesourcery.com>

	* ctf.c (ctf_xfer_partial): Move code to ...
	* exec.c (exec_read_partial_read_only): ... it.  New function.
	* tracefile-tfile.c (tfile_xfer_partial): Likewise.
	* tracefile.c: Include "exec.h".
	* exec.h (exec_read_partial_read_only): Declare.
This commit is contained in:
Yao Qi
2014-02-10 17:17:32 +08:00
parent a283690eb7
commit 1ca49d376d
6 changed files with 67 additions and 76 deletions
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9
gdb/exec.h
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@@ -46,6 +46,15 @@ extern int build_section_table (struct bfd *, struct target_section **,
extern int resize_section_table (struct target_section_table *, int);
/* Read from mappable read-only sections of BFD executable files.
Return TARGET_XFER_OK, if read is successful. Return
TARGET_XFER_EOF if read is done. Return TARGET_XFER_E_IO
otherwise. */
extern enum target_xfer_status
exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset,
ULONGEST len, ULONGEST *xfered_len);
/* Appends all read-only memory ranges found in the target section
table defined by SECTIONS and SECTIONS_END, starting at (and
intersected with) MEMADDR for LEN bytes. Returns the augmented