zenithsiz/ftmemsim-valgrind
1
0
Fork 0
mirror of https://github.com/Zenithsiz/ftmemsim-valgrind.git synced 2026-02-04 10:21:20 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
ftmemsim-valgrind/coregrind/m_libcassert.c
Julian Seward 0bb6f49531 On arm-linux, add r7 to the set of registers that the CFI unwinder 
knows how to unwind.  This is important when unwinding Thumb code
the CFA is often stated as being at some offset from r7.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11377
2010-09-23 22:05:59 +00:00

321 lines
12 KiB
C
Raw Blame History

/*--------------------------------------------------------------------*/
/*--- Assertions and panics. m_libcassert.c ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2010 Julian Seward
jseward@acm.org
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#include "pub_core_basics.h"
#include "pub_core_vki.h"
#include "pub_core_vkiscnums.h"
#include "pub_core_threadstate.h"
#include "pub_core_libcbase.h"
#include "pub_core_libcassert.h"
#include "pub_core_libcprint.h"
#include "pub_core_libcproc.h" // For VG_(gettid)()
#include "pub_core_stacktrace.h"
#include "pub_core_syscall.h"
#include "pub_core_tooliface.h" // For VG_(details).{name,bug_reports_to}
#include "pub_core_options.h" // For VG_(clo_xml)
/* ---------------------------------------------------------------------
Assertery.
------------------------------------------------------------------ */
#if defined(VGP_x86_linux) || defined(VGP_x86_darwin)
# define GET_STARTREGS(srP) \
{ UInt eip, esp, ebp; \
__asm__ __volatile__( \
"call 0f;" \
"0: popl %0;" \
"movl %%esp, %1;" \
"movl %%ebp, %2;" \
: "=r" (eip), "=r" (esp), "=r" (ebp) \
: /* reads none */ \
: "memory" \
); \
(srP)->r_pc = (ULong)eip; \
(srP)->r_sp = (ULong)esp; \
(srP)->misc.X86.r_ebp = ebp; \
}
#elif defined(VGP_amd64_linux) || defined(VGP_amd64_darwin)
# define GET_STARTREGS(srP) \
{ ULong rip, rsp, rbp; \
__asm__ __volatile__( \
"leaq 0(%%rip), %0;" \
"movq %%rsp, %1;" \
"movq %%rbp, %2;" \
: "=r" (rip), "=r" (rsp), "=r" (rbp) \
: /* reads none */ \
: "memory" \
); \
(srP)->r_pc = rip; \
(srP)->r_sp = rsp; \
(srP)->misc.AMD64.r_rbp = rbp; \
}
#elif defined(VGP_ppc32_linux) || defined(VGP_ppc32_aix5)
# define GET_STARTREGS(srP) \
{ UInt cia, r1, lr; \
__asm__ __volatile__( \
"mflr 0;" /* r0 = lr */ \
"bl m_libcassert_get_ip;" /* lr = pc */ \
"m_libcassert_get_ip:\n" \
"mflr %0;" /* %0 = pc */ \
"mtlr 0;" /* restore lr */ \
"mr %1,1;" /* %1 = r1 */ \
"mr %2,0;" /* %2 = lr */ \
: "=r" (cia), "=r" (r1), "=r" (lr) \
: /* reads none */ \
: "r0" /* trashed */ \
); \
(srP)->r_pc = (ULong)cia; \
(srP)->r_sp = (ULong)r1; \
(srP)->misc.PPC32.r_lr = lr; \
}
#elif defined(VGP_ppc64_linux) || defined(VGP_ppc64_aix5)
# define GET_STARTREGS(srP) \
{ ULong cia, r1, lr; \
__asm__ __volatile__( \
"mflr 0;" /* r0 = lr */ \
"bl .m_libcassert_get_ip;" /* lr = pc */ \
".m_libcassert_get_ip:\n" \
"mflr %0;" /* %0 = pc */ \
"mtlr 0;" /* restore lr */ \
"mr %1,1;" /* %1 = r1 */ \
"mr %2,0;" /* %2 = lr */ \
: "=r" (cia), "=r" (r1), "=r" (lr) \
: /* reads none */ \
: "r0" /* trashed */ \
); \
(srP)->r_pc = cia; \
(srP)->r_sp = r1; \
(srP)->misc.PPC64.r_lr = lr; \
}
#elif defined(VGP_arm_linux)
# define GET_STARTREGS(srP) \
{ UInt block[6]; \
__asm__ __volatile__( \
"str r15, [%0, #+0];" \
"str r14, [%0, #+4];" \
"str r13, [%0, #+8];" \
"str r12, [%0, #+12];" \
"str r11, [%0, #+16];" \
"str r7, [%0, #+20];" \
: /* out */ \
: /* in */ "r"(&block[0]) \
: /* trash */ "memory" \
); \
(srP)->r_pc = block[0] - 8; \
(srP)->r_sp = block[1]; \
(srP)->misc.ARM.r14 = block[2]; \
(srP)->misc.ARM.r12 = block[3]; \
(srP)->misc.ARM.r11 = block[4]; \
(srP)->misc.ARM.r7 = block[5]; \
}
#else
# error Unknown platform
#endif
#define BACKTRACE_DEPTH 100 // nice and deep!
/* Pull down the entire world */
void VG_(exit)( Int status )
{
#if defined(VGO_linux)
(void)VG_(do_syscall1)(__NR_exit_group, status );
#elif defined(VGO_aix5) || defined(VGO_darwin)
(void)VG_(do_syscall1)(__NR_exit, status );
#else
# error Unknown OS
#endif
/*NOTREACHED*/
// We really shouldn't reach here. Just in case we do, use some very crude
// methods to force abort
__builtin_trap();
*(volatile Int*)0 = 'x';
}
// Print the scheduler status.
void VG_(show_sched_status) ( void )
{
Int i;
VG_(printf)("\nsched status:\n");
VG_(printf)(" running_tid=%d\n", VG_(get_running_tid)());
for (i = 1; i < VG_N_THREADS; i++) {
if (VG_(threads)[i].status == VgTs_Empty) continue;
VG_(printf)( "\nThread %d: status = %s\n", i,
VG_(name_of_ThreadStatus)(VG_(threads)[i].status) );
VG_(get_and_pp_StackTrace)( i, BACKTRACE_DEPTH );
}
VG_(printf)("\n");
}
__attribute__ ((noreturn))
static void report_and_quit ( const Char* report,
UnwindStartRegs* startRegsIN )
{
Addr stacktop;
Addr ips[BACKTRACE_DEPTH];
Int n_ips;
ThreadState *tst
= VG_(get_ThreadState)( VG_(lwpid_to_vgtid)( VG_(gettid)() ) );
// If necessary, fake up an ExeContext which is of our actual real CPU
// state. Could cause problems if we got the panic/exception within the
// execontext/stack dump/symtab code. But it's better than nothing.
UnwindStartRegs startRegs;
VG_(memset)(&startRegs, 0, sizeof(startRegs));
if (startRegsIN == NULL) {
GET_STARTREGS(&startRegs);
} else {
startRegs = *startRegsIN;
}
stacktop = tst->os_state.valgrind_stack_init_SP;
n_ips =
VG_(get_StackTrace_wrk)(
0/*tid is unknown*/,
ips, BACKTRACE_DEPTH,
NULL/*array to dump SP values in*/,
NULL/*array to dump FP values in*/,
&startRegs, stacktop
);
VG_(clo_xml) = False;
VG_(pp_StackTrace) (ips, n_ips);
VG_(show_sched_status)();
VG_(printf)(
"\n"
"Note: see also the FAQ in the source distribution.\n"
"It contains workarounds to several common problems.\n"
"In particular, if Valgrind aborted or crashed after\n"
"identifying problems in your program, there's a good chance\n"
"that fixing those problems will prevent Valgrind aborting or\n"
"crashing, especially if it happened in m_mallocfree.c.\n"
"\n"
"If that doesn't help, please report this bug to: %s\n\n"
"In the bug report, send all the above text, the valgrind\n"
"version, and what OS and version you are using. Thanks.\n\n",
report);
VG_(exit)(1);
}
void VG_(assert_fail) ( Bool isCore, const Char* expr, const Char* file,
Int line, const Char* fn, const HChar* format, ... )
{
va_list vargs;
Char buf[256];
Char* component;
Char* bugs_to;
static Bool entered = False;
if (entered)
VG_(exit)(2);
entered = True;
va_start(vargs, format);
VG_(vsprintf) ( buf, format, vargs );
va_end(vargs);
if (isCore) {
component = "valgrind";
bugs_to = VG_BUGS_TO;
} else {
component = VG_(details).name;
bugs_to = VG_(details).bug_reports_to;
}
if (VG_(clo_xml))
VG_(printf_xml)("</valgrindoutput>\n");
// Treat vg_assert2(0, "foo") specially, as a panicky abort
if (VG_STREQ(expr, "0")) {
VG_(printf)("\n%s: %s:%d (%s): the 'impossible' happened.\n",
component, file, line, fn );
} else {
VG_(printf)("\n%s: %s:%d (%s): Assertion '%s' failed.\n",
component, file, line, fn, expr );
}
if (!VG_STREQ(buf, ""))
VG_(printf)("%s: %s\n", component, buf );
report_and_quit(bugs_to, NULL);
}
__attribute__ ((noreturn))
static void panic ( Char* name, Char* report, Char* str,
UnwindStartRegs* startRegs )
{
if (VG_(clo_xml))
VG_(printf_xml)("</valgrindoutput>\n");
VG_(printf)("\n%s: the 'impossible' happened:\n %s\n", name, str);
report_and_quit(report, startRegs);
}
void VG_(core_panic_at) ( Char* str, UnwindStartRegs* startRegs )
{
panic("valgrind", VG_BUGS_TO, str, startRegs);
}
void VG_(core_panic) ( Char* str )
{
VG_(core_panic_at)(str, NULL);
}
void VG_(tool_panic) ( Char* str )
{
panic(VG_(details).name, VG_(details).bug_reports_to, str, NULL);
}
/* Print some helpful-ish text about unimplemented things, and give up. */
void VG_(unimplemented) ( Char* msg )
{
if (VG_(clo_xml))
VG_(printf_xml)("</valgrindoutput>\n");
VG_(umsg)("\n");
VG_(umsg)("Valgrind detected that your program requires\n");
VG_(umsg)("the following unimplemented functionality:\n");
VG_(umsg)(" %s\n", msg);
VG_(umsg)("This may be because the functionality is hard to implement,\n");
VG_(umsg)("or because no reasonable program would behave this way,\n");
VG_(umsg)("or because nobody has yet needed it. "
"In any case, let us know at\n");
VG_(umsg)("%s and/or try to work around the problem, if you can.\n",
VG_BUGS_TO);
VG_(umsg)("\n");
VG_(umsg)("Valgrind has to exit now. Sorry. Bye!\n");
VG_(umsg)("\n");
VG_(show_sched_status)();
VG_(exit)(1);
}
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
Reference in New Issue View Git Blame Copy Permalink