Commit Graph

6 Commits

Author SHA1 Message Date
3e9d71feaa Introduce memory allocation wrappers
Introduce wrappers to the following functions that do memory allocation:
malloc, calloc, realloc, strdup.

This commit is a follow-up to the related discussions in strace-devel ML:
http://sourceforge.net/p/strace/mailman/message/33618180/
http://sourceforge.net/p/strace/mailman/message/33733470/

* defs.h (xmalloc, xcalloc, xreallocarray, xstrdup): New prototypes.
* xmalloc.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* count.c (count_syscall, call_summary_pers): Use xcalloc.
* desc.c (decode_select): Use xmalloc.
* dirent.c (sys_getdents, sys_getdents64): Likewise.
* net.c (sys_recvmmsg): Use xstrdup.
* pathtrace.c (storepath): Use xreallocarray.
(pathtrace_match): Use xmalloc.
* strace.c (die_out_of_memory): Move to xmalloc.c.
(expand_tcbtab): Use xcalloc and xreallocarray.
(startup_child): Use xstrdup.
(init): Use xmalloc, xcalloc, and xstrdup.
* syscall.c (reallocate_qual): Use xreallocarray.
(qualify): Use xstrdup.
* unwind.c (unwind_tcb_init): Use xmalloc.
(build_mmap_cache): Use xcalloc, xreallocarray, and xstrdup.
(get_symbol_name): Use xreallocarray.
(stacktrace_walk, queue_put): Use xmalloc.
* util.c (printstr): Use xmalloc.
* vsprintf.c (strace_vfprintf): Likewise.
2015-05-25 22:25:22 +00:00
d354130b3a Fix build with Bionic libc
Add generic tests for fopen64 and fputs_unlocked functions to fix build
with Bionic libc that does not provide them.

* configure.ac (AC_CHECK_FUNCS): Add fopen64 and fputs_unlocked.
* strace.c [_LARGEFILE64_SOURCE]: Use fopen instead of fopen64
if !HAVE_FOPEN64.
Use fputs instead of fputs_unlocked if !HAVE_FPUTS_UNLOCKED.
* vsprintf.c: Use fputs instead of fputs_unlocked
if !HAVE_FPUTS_UNLOCKED.

Reported-by: Elliott Hughes <enh@google.com>
2014-02-26 00:01:00 +00:00
Denys Vlasenko
76da831a41 Group USE_CUSTOM_PRINTF define with other tweakables
No code changes.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2013-07-16 12:18:59 +02:00
Denys Vlasenko
dafba9bb99 strace_vfprintf: if malloc fails, exit gracefully
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-05 17:29:18 +01:00
a5fd66b7b9 * vsprintf.c: Check for USE_CUSTOM_PRINTF earlier. 2012-05-01 22:49:49 +00:00
Denys Vlasenko
6e4f3c1fa4 Add custom (faster) vfprintf implementation (disabled by default)
* defs.h: Declare strace_vfprintf either as a alias to vfprintf
or as a bona fide function. USE_CUSTOM_PRINTF define controls whether
we use strace_vfprintf. By default, we don't.
* strace.c (tprintf): Call strace_vfprintf instead of vfprintf.
* vsprintf.c: New file, implements strace_vfprintf.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-04-16 18:22:19 +02:00