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| author | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2021-11-15 12:50:51 +0100 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2021-11-15 12:56:10 +0100 |
| commit | f9402ccaa9fac7858713a7672fae5760ae3d5ce7 (patch) | |
| tree | 120dc7c0bafe4ff49b5b8e6022db155264abd330 /gas/ChangeLog | |
| parent | e6c46d077240565fac4d70066719a8bbe2c212d1 (diff) | |
| download | gdb-f9402ccaa9fac7858713a7672fae5760ae3d5ce7.zip gdb-f9402ccaa9fac7858713a7672fae5760ae3d5ce7.tar.gz gdb-f9402ccaa9fac7858713a7672fae5760ae3d5ce7.tar.bz2 | |
Deal with full path in .file 0 directive
Gas uses the directory part, if present, of the .file 0 directive to set
entry 0 of the directory table in DWARF 5, which represents the "current
directory".
Now Gas also uses the file part of the same directive to set entry 0 of the
file table, which represents the "current compilation file". But the latter
need not be located in the former so GCC will use a full path in the file
part when it is passed a full path:
gcc -c /full/path/test.c -save-temps
yields:
.file 0 "/current/directory" "/full/path/test.c"
in the assembly file and:
The Directory Table (offset 0x22, lines 2, columns 1):
Entry Name
0 (indirect line string, offset: 0x25): /current/directory
1 (indirect line string, offset: 0x38): /full/path
The File Name Table (offset 0x30, lines 2, columns 2):
Entry Dir Name
0 0 (indirect line string, offset: 0x43): /full/path/test.c
in the object file. Note the full path and the questionable Dir value in
the 0 entry of the file table.
Diffstat (limited to 'gas/ChangeLog')
| -rw-r--r-- | gas/ChangeLog | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 1133847..e9761e9 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,16 @@ +2021-11-15 Eric Botcazou <ebotcazou@adacore.com> + + * doc/as.texi (File): Update description of .file 0 directive. + * dwarf2dbg.c (get_directory_table_entry): Remove obsolete comment + and pass file0_dirname in recursive call. + (allocate_filename_to_slot): Deal with a full path in the file name + if the index number is 0. + * testsuite/gas/elf/dwarf-5-file0.d: Fix pasto. + * testsuite/gas/elf/dwarf-5-file0-2.d: Likewise. + * testsuite/gas/elf/dwarf-5-file0-3.d: New file. + * testsuite/gas/elf/dwarf-5-file0-3.s: Likewise. + * testsuite/gas/elf/elf.exp: Run dwarf-5-file0-3. + 2021-10-28 Markus Klein <markus.klein@sma.de> PR 28436 |