125 lines
4.4 KiB
Diff
125 lines
4.4 KiB
Diff
From 3e878f9d1c473f91a1377193d4d8d2616357bed1 Mon Sep 17 00:00:00 2001
|
|
From: Xi Ruoyao <xry111@mengyan1223.wang>
|
|
Date: Mon, 28 Jun 2021 13:54:58 +0800
|
|
Subject: [PATCH] fixinc: don't "fix" machine names in __has_include(...)
|
|
[PR91085]
|
|
|
|
fixincludes/
|
|
|
|
PR other/91085
|
|
* fixfixes.c (check_has_inc): New static function.
|
|
(machine_name_fix): Don't replace header names in
|
|
__has_include(...).
|
|
* inclhack.def (machine_name): Adjust test.
|
|
* tests/base/testing.h: Update.
|
|
|
|
Upstream: 6bf383c37e6131a8e247e8a0997d55d65c830b6d
|
|
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
|
|
---
|
|
fixincludes/fixfixes.c | 45 ++++++++++++++++++++++++++++++--
|
|
fixincludes/inclhack.def | 3 ++-
|
|
fixincludes/tests/base/testing.h | 2 +-
|
|
3 files changed, 46 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/fixincludes/fixfixes.c b/fixincludes/fixfixes.c
|
|
index 5b23a8b640d..404b420f302 100644
|
|
--- a/fixincludes/fixfixes.c
|
|
+++ b/fixincludes/fixfixes.c
|
|
@@ -477,6 +477,39 @@ FIX_PROC_HEAD( char_macro_def_fix )
|
|
fputs (text, stdout);
|
|
}
|
|
|
|
+/* Check if the pattern at pos is actually in a "__has_include(...)"
|
|
+ directive. Return the pointer to the ')' of this
|
|
+ "__has_include(...)" if it is, NULL otherwise. */
|
|
+static const char *
|
|
+check_has_inc (const char *begin, const char *pos, const char *end)
|
|
+{
|
|
+ static const char has_inc[] = "__has_include";
|
|
+ const size_t has_inc_len = sizeof (has_inc) - 1;
|
|
+ const char *p;
|
|
+
|
|
+ for (p = memmem (begin, pos - begin, has_inc, has_inc_len);
|
|
+ p != NULL;
|
|
+ p = memmem (p, pos - p, has_inc, has_inc_len))
|
|
+ {
|
|
+ p += has_inc_len;
|
|
+ while (p < end && ISSPACE (*p))
|
|
+ p++;
|
|
+
|
|
+ /* "__has_include" may appear as "defined(__has_include)",
|
|
+ search for the next appearance then. */
|
|
+ if (*p != '(')
|
|
+ continue;
|
|
+
|
|
+ /* To avoid too much complexity, just hope there is never a
|
|
+ ')' in a header name. */
|
|
+ p = memchr (p, ')', end - p);
|
|
+ if (p == NULL || p > pos)
|
|
+ return p;
|
|
+ }
|
|
+
|
|
+ return NULL;
|
|
+}
|
|
+
|
|
/* Fix for machine name #ifdefs that are not in the namespace reserved
|
|
by the C standard. They won't be defined if compiling with -ansi,
|
|
and the headers will break. We go to some trouble to only change
|
|
@@ -524,7 +557,7 @@ FIX_PROC_HEAD( machine_name_fix )
|
|
/* If the 'name_pat' matches in between base and limit, we have
|
|
a bogon. It is not worth the hassle of excluding comments
|
|
because comments on #if/#ifdef lines are rare, and strings on
|
|
- such lines are illegal.
|
|
+ such lines are only legal in a "__has_include" directive.
|
|
|
|
REG_NOTBOL means 'base' is not at the beginning of a line, which
|
|
shouldn't matter since the name_re has no ^ anchor, but let's
|
|
@@ -544,8 +577,16 @@ FIX_PROC_HEAD( machine_name_fix )
|
|
break;
|
|
|
|
p = base + match[0].rm_so;
|
|
- base += match[0].rm_eo;
|
|
|
|
+ /* Check if the match is in __has_include(...) (PR 91085). */
|
|
+ q = check_has_inc (base, p, limit);
|
|
+ if (q)
|
|
+ {
|
|
+ base = q + 1;
|
|
+ goto again;
|
|
+ }
|
|
+
|
|
+ base += match[0].rm_eo;
|
|
/* One more test: if on the same line we have the same string
|
|
with the appropriate underscores, then leave it alone.
|
|
We want exactly two leading and trailing underscores. */
|
|
diff --git a/fixincludes/inclhack.def b/fixincludes/inclhack.def
|
|
index c2f54d1189a..b2841d384f3 100644
|
|
--- a/fixincludes/inclhack.def
|
|
+++ b/fixincludes/inclhack.def
|
|
@@ -3201,7 +3201,8 @@ fix = {
|
|
c_fix = machine_name;
|
|
|
|
test_text = "/* MACH_DIFF: */\n"
|
|
- "#if defined( i386 ) || defined( sparc ) || defined( vax )"
|
|
+ "#if defined( i386 ) || defined( sparc ) || defined( vax ) || "
|
|
+ "defined( linux ) || __has_include ( <linux.h> )"
|
|
"\n/* no uniform test, so be careful :-) */";
|
|
};
|
|
|
|
diff --git a/fixincludes/tests/base/testing.h b/fixincludes/tests/base/testing.h
|
|
index cf95321fb86..8b3accaf04e 100644
|
|
--- a/fixincludes/tests/base/testing.h
|
|
+++ b/fixincludes/tests/base/testing.h
|
|
@@ -64,7 +64,7 @@ BSD43__IOWR('T', 1) /* Some are multi-line */
|
|
|
|
#if defined( MACHINE_NAME_CHECK )
|
|
/* MACH_DIFF: */
|
|
-#if defined( i386 ) || defined( sparc ) || defined( vax )
|
|
+#if defined( i386 ) || defined( sparc ) || defined( vax ) || defined( linux ) || __has_include ( <linux.h> )
|
|
/* no uniform test, so be careful :-) */
|
|
#endif /* MACHINE_NAME_CHECK */
|
|
|
|
--
|
|
2.34.3
|
|
|