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author | Yao Qi <yao@codesourcery.com> | 2014-02-10 17:17:32 +0800 |
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committer | Yao Qi <yao@codesourcery.com> | 2014-02-23 11:44:27 +0800 |
commit | 1ca49d376dec6a93e879bc9456617622d7e349b3 (patch) | |
tree | 0e2564e9ec48472a73c83abb826f6ec19e7de5f7 /gdb/exec.c | |
parent | a283690eb7320dfe4074301c673f6cc3dd21fb11 (diff) | |
download | gdb-1ca49d376dec6a93e879bc9456617622d7e349b3.zip gdb-1ca49d376dec6a93e879bc9456617622d7e349b3.tar.gz gdb-1ca49d376dec6a93e879bc9456617622d7e349b3.tar.bz2 |
Share code on to_xfer_partial for tfile and ctf target
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.
Diffstat (limited to 'gdb/exec.c')
-rw-r--r-- | gdb/exec.c | 47 |
1 files changed, 47 insertions, 0 deletions
@@ -530,6 +530,53 @@ remove_target_sections (void *owner) +enum target_xfer_status +exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset, + ULONGEST len, ULONGEST *xfered_len) +{ + /* It's unduly pedantic to refuse to look at the executable for + read-only pieces; so do the equivalent of readonly regions aka + QTro packet. */ + if (exec_bfd != NULL) + { + asection *s; + bfd_size_type size; + bfd_vma vma; + + for (s = exec_bfd->sections; s; s = s->next) + { + if ((s->flags & SEC_LOAD) == 0 + || (s->flags & SEC_READONLY) == 0) + continue; + + vma = s->vma; + size = bfd_get_section_size (s); + if (vma <= offset && offset < (vma + size)) + { + ULONGEST amt; + + amt = (vma + size) - offset; + if (amt > len) + amt = len; + + amt = bfd_get_section_contents (exec_bfd, s, + readbuf, offset - vma, amt); + + if (amt == 0) + return TARGET_XFER_EOF; + else + { + *xfered_len = amt; + return TARGET_XFER_OK; + } + } + } + } + + /* Indicate failure to find the requested memory block. */ + return TARGET_XFER_E_IO; +} + VEC(mem_range_s) * section_table_available_memory (VEC(mem_range_s) *memory, CORE_ADDR memaddr, ULONGEST len, |