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From: Adam Jackson <ajax@redhat.com>
To: libc-alpha@sourceware.org
Subject: [PATCH] libio: Fix oversized __io_vtables
Date: Thu,  7 Sep 2023 15:38:28 -0400	[thread overview]
Message-ID: <20230907193828.126271-1-ajax@redhat.com> (raw)

IO_VTABLES_LEN is the expected size of the struct in bytes, not the
number of __IO_jump_t's in the array. Drops just under 384kb from
.rodata on LP64 machines.

Fixes: 3020f72618e ("libio: Remove the usage of __libc_IO_vtables")
Signed-off-by: Adam Jackson <ajax@redhat.com>
---
 libio/vtables.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libio/vtables.c b/libio/vtables.c
index 1d8ad612e94..7cb894d751d 100644
--- a/libio/vtables.c
+++ b/libio/vtables.c
@@ -86,11 +86,11 @@
 
 # pragma weak __wprintf_buffer_as_file_overflow
 # pragma weak __wprintf_buffer_as_file_xsputn
 #endif
 
-const struct _IO_jump_t __io_vtables[IO_VTABLES_LEN] attribute_relro =
+const struct _IO_jump_t __io_vtables[IO_VTABLES_NUM] attribute_relro =
 {
   /* _IO_str_jumps  */
   [IO_STR_JUMPS] =
   {
     JUMP_INIT_DUMMY,
-- 
2.41.0


             reply	other threads:[~2023-09-07 19:38 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-07 19:38 Adam Jackson [this message]
2023-09-08 11:20 ` Florian Weimer
2023-09-08 19:54   ` Adam Jackson
2023-09-08 19:55 Adam Jackson
2023-09-08 20:59 ` Florian Weimer

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