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authorMax Krummenacher <max.krummenacher@toradex.com>2024-07-25 15:20:45 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-07-31 12:31:32 +0200
commit6e20753da6bc651e02378a0cdb78f16c42098c88 (patch)
treed5e01567f1932a550875a540f4bd008fb1a56dda
parent7d3b793faaab1305994ce568b59d61927235f57b (diff)
tty: vt: conmakehash: cope with abs_srctree no longer in env
conmakehash uses getenv("abs_srctree") from the environment to strip the absolute path from the generated sources. However since commit e2bad142bb3d ("kbuild: unexport abs_srctree and abs_objtree") this environment variable no longer gets set. Instead use basename() to indicate the used file in a comment of the generated source file. Fixes: 3bd85c6c97b2 ("tty: vt: conmakehash: Don't mention the full path of the input in output") Cc: stable <stable@kernel.org> Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Link: https://lore.kernel.org/stable/20240725132056.9151-1-max.oss.09%40gmail.com Link: https://lore.kernel.org/r/20240725132056.9151-1-max.oss.09@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/tty/vt/conmakehash.c20
1 files changed, 7 insertions, 13 deletions
diff --git a/drivers/tty/vt/conmakehash.c b/drivers/tty/vt/conmakehash.c
index dc2177fec715..82d9db68b2ce 100644
--- a/drivers/tty/vt/conmakehash.c
+++ b/drivers/tty/vt/conmakehash.c
@@ -11,6 +11,8 @@
* Copyright (C) 1995-1997 H. Peter Anvin
*/
+#include <libgen.h>
+#include <linux/limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <sysexits.h>
@@ -76,8 +78,8 @@ static void addpair(int fp, int un)
int main(int argc, char *argv[])
{
FILE *ctbl;
- const char *tblname, *rel_tblname;
- const char *abs_srctree;
+ const char *tblname;
+ char base_tblname[PATH_MAX];
char buffer[65536];
int fontlen;
int i, nuni, nent;
@@ -102,16 +104,6 @@ int main(int argc, char *argv[])
}
}
- abs_srctree = getenv("abs_srctree");
- if (abs_srctree && !strncmp(abs_srctree, tblname, strlen(abs_srctree)))
- {
- rel_tblname = tblname + strlen(abs_srctree);
- while (*rel_tblname == '/')
- ++rel_tblname;
- }
- else
- rel_tblname = tblname;
-
/* For now we assume the default font is always 256 characters. */
fontlen = 256;
@@ -253,6 +245,8 @@ int main(int argc, char *argv[])
for ( i = 0 ; i < fontlen ; i++ )
nuni += unicount[i];
+ strncpy(base_tblname, tblname, PATH_MAX);
+ base_tblname[PATH_MAX - 1] = 0;
printf("\
/*\n\
* Do not edit this file; it was automatically generated by\n\
@@ -264,7 +258,7 @@ int main(int argc, char *argv[])
#include <linux/types.h>\n\
\n\
u8 dfont_unicount[%d] = \n\
-{\n\t", rel_tblname, fontlen);
+{\n\t", basename(base_tblname), fontlen);
for ( i = 0 ; i < fontlen ; i++ )
{