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author | Jan Beulich <jbeulich@suse.com> | 2023-02-14 08:34:03 +0100 |
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committer | Jan Beulich <jbeulich@suse.com> | 2023-02-14 08:34:03 +0100 |
commit | 7545aa2dd2eb85a852f978dc0d93b3deb6f52536 (patch) | |
tree | b8b08d57ca3ceb330a80a696f254d3d1bff9173f /gas | |
parent | f54cd6441de5c057b43ea1501c1b075984067e7c (diff) | |
download | gdb-7545aa2dd2eb85a852f978dc0d93b3deb6f52536.zip gdb-7545aa2dd2eb85a852f978dc0d93b3deb6f52536.tar.gz gdb-7545aa2dd2eb85a852f978dc0d93b3deb6f52536.tar.bz2 |
gas: improve interaction between read_a_source_file() and s_linefile()
read_a_source_file() would bump line numbers only when seeing a newline,
whereas is_end_of_line[] indicates further end-of-line characters, in
particular the nul character. s_linefile() attempts to compensate for
the bump, but was too aggressive with this so far: It should only adjust
when a newline ends the line. To facilitate such a check, the check for
nothing else on the line needs to move ahead, which luckily is easily
possible: The relevant two conditions match, and the function can
simply return from the body of that earlier instance of the conditional.
The more strict treatment in s_linefile() then requires an adjustment
to buffer_and_nest()'s invocation of the function: The line terminator
now needs to be a newline, not nul.
Diffstat (limited to 'gas')
-rw-r--r-- | gas/macro.c | 2 | ||||
-rw-r--r-- | gas/read.c | 14 |
2 files changed, 10 insertions, 6 deletions
diff --git a/gas/macro.c b/gas/macro.c index 763bafb..f9f2d63 100644 --- a/gas/macro.c +++ b/gas/macro.c @@ -265,7 +265,7 @@ buffer_and_nest (const char *from, const char *to, sb *ptr, { char saved_eol_char = ptr->ptr[ptr->len]; - ptr->ptr[ptr->len] = '\0'; + ptr->ptr[ptr->len] = '\n'; temp_ilp (ptr->ptr + i + 8); s_linefile (0); restore_ilp (); @@ -2049,18 +2049,22 @@ s_linefile (int ignore ATTRIBUTE_UNUSED) if (file || flags) { - linenum--; + demand_empty_rest_of_line (); + + /* read_a_source_file() will bump the line number only if the line + is terminated by '\n'. */ + if (input_line_pointer[-1] == '\n') + linenum--; + new_logical_line_flags (file, linenum, flags); #ifdef LISTING if (listing) listing_source_line (linenum); #endif + return; } } - if (file || flags) - demand_empty_rest_of_line (); - else - ignore_rest_of_line (); + ignore_rest_of_line (); } /* Handle the .end pseudo-op. Actually, the real work is done in |