gcc/libcpp
Jakub Jelinek c6b664e2c4 libcpp: Fix up -fdirectives-only preprocessing of includes not ending with newline [PR100392]
If a header doesn't end with a new-line, with -fdirectives-only we right now
preprocess it as
int i = 1;# 2 "pr100392.c" 2
i.e. the line directive isn't on the next line, which means we fail to parse
it when compiling.

GCC 10 and earlier libcpp/directives-only.c had for this:
  if (!pfile->state.skipping && cur != base)
    {
      /* If the file was not newline terminated, add rlimit, which is
         guaranteed to point to a newline, to the end of our range.  */
      if (cur[-1] != '\n')
        {
          cur++;
          CPP_INCREMENT_LINE (pfile, 0);
          lines++;
        }

      cb->print_lines (lines, base, cur - base);
    }
and we have the assertion
      /* Files always end in a newline or carriage return.  We rely on this for
         character peeking safety.  */
      gcc_assert (buffer->rlimit[0] == '\n' || buffer->rlimit[0] == '\r');
So, this patch just does readd the more less same thing, so that we emit
a newline after the inline even when it wasn't there before.

2021-05-12  Jakub Jelinek  <jakub@redhat.com>

	PR preprocessor/100392
	* lex.c (cpp_directive_only_process): If buffer doesn't end with '\n',
	add buffer->rlimit[0] character to the printed range and
	CPP_INCREMENT_LINE and increment line_count.

	* gcc.dg/cpp/pr100392.c: New test.
	* gcc.dg/cpp/pr100392.h: New file.
2021-05-12 15:14:35 +02:00
..
include preprocessor: Support C2X #elifdef, #elifndef 2021-05-11 23:54:01 +00:00
po Daily bump. 2021-03-30 00:16:29 +00:00
aclocal.m4 libcpp: Enable Intel CET on Intel CET enabled host for jit 2020-05-12 09:17:45 -07:00
ChangeLog Daily bump. 2021-05-12 08:51:03 +00:00
ChangeLog.jit Merger of dmalcolm/jit branch from git 2014-11-11 21:55:52 +00:00
charset.c Update copyright years. 2021-01-04 10:26:59 +01:00
config.in Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
configure GCC_CET_HOST_FLAGS: Check if host supports multi-byte NOPs 2021-05-03 05:01:23 -07:00
configure.ac libcpp, libdecnumber: configure and substitute AR 2020-05-23 21:59:02 +00:00
directives.c preprocessor: Support C2X #elifdef, #elifndef 2021-05-11 23:54:01 +00:00
errors.c Update copyright years. 2021-01-04 10:26:59 +01:00
expr.c preprocessor: Fix pp-number lexing of digit separators [PR83873, PR97604] 2021-05-06 23:20:35 +00:00
files.c c++: header-unit build capability [PR 99023] 2021-02-18 13:22:48 -08:00
generated_cpp_wcwidth.h libcpp: Update cpp_wcwidth() to Unicode 13.0.0 2020-11-07 09:36:43 -05:00
identifiers.c Update copyright years. 2021-01-04 10:26:59 +01:00
init.c preprocessor: Support C2X #elifdef, #elifndef 2021-05-11 23:54:01 +00:00
internal.h c++: header-unit build capability [PR 99023] 2021-02-18 13:22:48 -08:00
lex.c libcpp: Fix up -fdirectives-only preprocessing of includes not ending with newline [PR100392] 2021-05-12 15:14:35 +02:00
line-map.c preprocessor/100142 - revert unwanted change in last commit 2021-04-19 14:43:39 +02:00
location-example.txt PR preprocessor/83173: Enhance -fdump-internal-locations output 2018-11-27 16:04:31 +00:00
macro.c c++: header-unit build capability [PR 99023] 2021-02-18 13:22:48 -08:00
Makefile.in Update copyright years. 2021-01-04 10:26:59 +01:00
makeucnid.c Update copyright years. 2021-01-04 10:26:59 +01:00
mkdeps.c preprocessor: Make quoting : [PR 95253] 2021-01-15 08:56:20 -08:00
pch.c Update copyright years. 2021-01-04 10:26:59 +01:00
symtab.c Update copyright years. 2021-01-04 10:26:59 +01:00
system.h Update copyright years. 2021-01-04 10:26:59 +01:00
traditional.c Update copyright years. 2021-01-04 10:26:59 +01:00
ucnid.h Update copyright years. 2021-01-04 10:26:59 +01:00
ucnid.tab Update copyright years. 2021-01-04 10:26:59 +01:00