Import rpm: c8s

This commit is contained in:
James Antill 2023-02-27 13:12:53 -05:00
commit 0d2b549106
33 changed files with 8111 additions and 0 deletions

2
.gitignore vendored Normal file
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@ -0,0 +1,2 @@
SOURCES/ltrace-0.7.91.tar.bz2
/ltrace-0.7.91.tar.bz2

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@ -0,0 +1,20 @@
diff -up ltrace-0.7.2/proc.c\~ ltrace-0.7.2/proc.c
--- ltrace-0.7.2/proc.c~ 2014-02-13 12:16:33.000000000 +0100
+++ ltrace-0.7.2/proc.c 2014-02-13 15:44:25.000000000 +0100
@@ -194,9 +197,11 @@ process_init(struct process *proc, const
goto fail;
}
- if (proc->leader != proc)
- return 0;
- if (process_init_main(proc) < 0) {
+ if (proc->leader != proc) {
+ proc->e_machine = proc->leader->e_machine;
+ proc->e_class = proc->leader->e_class;
+ get_arch_dep(proc);
+ } else if (process_init_main(proc) < 0) {
process_bare_destroy(proc, 0);
goto fail;
}
Diff finished. Thu Feb 13 15:50:21 2014

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@ -0,0 +1,37 @@
diff -rup a/sysdeps/linux-gnu/aarch64/fetch.c b/sysdeps/linux-gnu/aarch64/fetch.c
--- a/sysdeps/linux-gnu/aarch64/fetch.c 2018-07-05 16:06:10.066626252 -0400
+++ b/sysdeps/linux-gnu/aarch64/fetch.c 2018-07-05 16:17:17.659748481 -0400
@@ -308,12 +308,9 @@ arch_fetch_arg_init(enum tof type, struc
struct fetch_script how = pass_arg(context, proc, ret_info);
if (how.c == CVT_ERR)
goto fail;
- if (how.c == CVT_NOP && how.f == FETCH_STACK) {
+ if (how.c == CVT_BYREF && how.f == FETCH_GPR) {
/* XXX double cast. */
context->x8 = (arch_addr_t) (uintptr_t) context->gregs.regs[8];
- /* See the comment above about the assert. */
- assert(! "Unexpected: first argument passed on stack.");
- abort();
}
return context;
diff -rup a/testsuite/ltrace.main/system_call_params.exp b/testsuite/ltrace.main/system_call_params.exp
--- a/testsuite/ltrace.main/system_call_params.exp 2018-07-05 16:06:10.516624926 -0400
+++ b/testsuite/ltrace.main/system_call_params.exp 2018-07-05 16:58:01.549830643 -0400
@@ -61,13 +61,13 @@ set conf [ltraceNamedSource "$dir/syscal
# doesn't list readdir, that would be taken from somelib.conf with a
# wrong prototype.
-ltraceMatch1 [ltraceRun -L -S -F $conf -- $bin] {^open@SYS\("/some/path"} == 0
+ltraceMatch1 [ltraceRun -L -S -F $conf -- $bin] {^open@SYS\("/some/path", 0\)} == 0
# On the other hand, if -F somedir/ is given, we want to accept
# syscalls.conf found there.
ltraceMatch [ltraceRun -L -S -F $dir -- $bin] {
- {{^open@SYS\("/some/path"} == 1}
+ {{^open@SYS\("/some/path", 0\)} == 1}
{{^write@SYS\(1, "something", 10\)} == 1}
{{^mount@SYS\("source", "target", "filesystemtype"} == 1}
}
Only in b/testsuite/ltrace.main: system_call_params.exp~

2416
ltrace-0.7.91-aarch64.patch Normal file

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@ -0,0 +1,834 @@
From 0cf4ab66e9927e101a51dd9fa9adc6c8dc56b5e7 Mon Sep 17 00:00:00 2001
From: Petr Machata <pmachata@redhat.com>
Date: Thu, 21 Nov 2013 20:25:53 +0100
Subject: [PATCH] Consider exec and exit events an end of outstanding calls
- This cleans up a lot of stuff. The actual substance is addition of
account_current_callstack in handle_event.c (which however uses
those cleaned-up interfaces).
- trace-exec.exp was extended to check that the exec syscall can be
seen in -c output. That's one of the symptoms of what this fixes.
---
Makefile.am | 8 +-
common.h | 2 -
forward.h | 1 +
handle_event.c | 225 ++++++++++++++++++++-------------
libltrace.c | 5 +-
options.h | 8 +-
output.c | 86 +++----------
output.h | 5 +-
proc.h | 2 +-
summary.c | 89 +++++++++++++-
summary.h | 35 +++++
testsuite/ltrace.minor/trace-exec.exp | 16 ++-
12 files changed, 299 insertions(+), 183 deletions(-)
create mode 100644 summary.h
diff --git a/Makefile.am b/Makefile.am
index d711aec..efcf18a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -54,10 +54,10 @@ ltrace_LDADD = \
noinst_HEADERS = bits.h backend.h breakpoint.h common.h debug.h \
defs.h demangle.h dict.h forward.h ltrace-elf.h ltrace.h \
- options.h output.h proc.h read_config_file.h library.h \
- filter.h glob.h vect.h type.h value.h value_dict.h callback.h \
- expr.h fetch.h vect.h param.h printf.h zero.h lens.h \
- lens_default.h lens_enum.h memstream.h prototype.h
+ options.h output.h proc.h read_config_file.h summary.h \
+ library.h filter.h glob.h vect.h type.h value.h value_dict.h \
+ callback.h expr.h fetch.h vect.h param.h printf.h zero.h \
+ lens.h lens_default.h lens_enum.h memstream.h prototype.h
dist_man1_MANS = ltrace.1
dist_man5_MANS = ltrace.conf.5
diff --git a/common.h b/common.h
index a53c5db..7259ba4 100644
--- a/common.h
+++ b/common.h
@@ -54,8 +54,6 @@ extern void handle_event(Event * event);
extern pid_t execute_program(const char * command, char ** argv);
-extern void show_summary(void);
-
struct breakpoint;
struct library_symbol;
diff --git a/forward.h b/forward.h
index 8641213..58d8f05 100644
--- a/forward.h
+++ b/forward.h
@@ -34,6 +34,7 @@ struct param_enum;
struct process;
struct protolib;
struct prototype;
+struct timedelta;
struct value;
struct value_dict;
struct vect;
diff --git a/handle_event.c b/handle_event.c
index 9ed62a2..6fa7e98 100644
--- a/handle_event.c
+++ b/handle_event.c
@@ -32,7 +32,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <sys/time.h>
#include <stdbool.h>
#include "backend.h"
@@ -41,8 +40,9 @@
#include "fetch.h"
#include "library.h"
#include "proc.h"
-#include "value_dict.h"
#include "prototype.h"
+#include "summary.h"
+#include "value_dict.h"
static void handle_signal(Event *event);
static void handle_exit(Event *event);
@@ -419,32 +419,11 @@ handle_signal(Event *event) {
continue_after_signal(event->proc->pid, event->e_un.signum);
}
-static void
-handle_exit(Event *event) {
- debug(DEBUG_FUNCTION, "handle_exit(pid=%d, status=%d)", event->proc->pid, event->e_un.ret_val);
- if (event->proc->state != STATE_IGNORED) {
- output_line(event->proc, "+++ exited (status %d) +++",
- event->e_un.ret_val);
- }
- remove_process(event->proc);
-}
-
-static void
-handle_exit_signal(Event *event) {
- debug(DEBUG_FUNCTION, "handle_exit_signal(pid=%d, signum=%d)", event->proc->pid, event->e_un.signum);
- if (event->proc->state != STATE_IGNORED) {
- output_line(event->proc, "+++ killed by %s +++",
- shortsignal(event->proc, event->e_un.signum));
- }
- remove_process(event->proc);
-}
-
-static void
-output_syscall(struct process *proc, const char *name, enum tof tof,
- void (*output)(enum tof, struct process *,
- struct library_symbol *))
+static int
+init_syscall_symbol(struct library_symbol *libsym, const char *name)
{
static struct library syscall_lib;
+
if (syscall_lib.protolib == NULL) {
struct protolib *protolib
= protolib_cache_load(&g_protocache, "syscalls", 0, 1);
@@ -475,10 +454,91 @@ output_syscall(struct process *proc, const char *name, enum tof tof,
syscall_lib.protolib = protolib;
}
+ if (library_symbol_init(libsym, 0, name, 0, LS_TOPLT_NONE) < 0)
+ return -1;
+
+ libsym->lib = &syscall_lib;
+ return 0;
+}
+
+/* Account the unfinished functions on the call stack. */
+static void
+account_current_callstack(struct process *proc)
+{
+ if (! options.summary)
+ return;
+
+ struct timedelta spent[proc->callstack_depth];
+
+ size_t i;
+ for (i = 0; i < proc->callstack_depth; ++i) {
+ struct callstack_element *elem = &proc->callstack[i];
+ spent[i] = calc_time_spent(elem->enter_time);
+ }
+
+ for (i = 0; i < proc->callstack_depth; ++i) {
+ struct callstack_element *elem = &proc->callstack[i];
+ struct library_symbol syscall, *libsym = NULL;
+ if (elem->is_syscall) {
+ const char *name = sysname(proc, elem->c_un.syscall);
+ if (init_syscall_symbol(&syscall, name) >= 0)
+ libsym = &syscall;
+
+ } else {
+ libsym = elem->c_un.libfunc;
+ }
+
+ if (libsym != NULL) {
+ summary_account_call(libsym, spent[i]);
+
+ if (elem->is_syscall)
+ library_symbol_destroy(&syscall);
+ }
+ }
+}
+
+static void
+handle_exit(Event *event) {
+ debug(DEBUG_FUNCTION, "handle_exit(pid=%d, status=%d)", event->proc->pid, event->e_un.ret_val);
+ if (event->proc->state != STATE_IGNORED) {
+ output_line(event->proc, "+++ exited (status %d) +++",
+ event->e_un.ret_val);
+ }
+
+ account_current_callstack(event->proc);
+ remove_process(event->proc);
+}
+
+static void
+handle_exit_signal(Event *event) {
+ debug(DEBUG_FUNCTION, "handle_exit_signal(pid=%d, signum=%d)", event->proc->pid, event->e_un.signum);
+ if (event->proc->state != STATE_IGNORED) {
+ output_line(event->proc, "+++ killed by %s +++",
+ shortsignal(event->proc, event->e_un.signum));
+ }
+
+ account_current_callstack(event->proc);
+ remove_process(event->proc);
+}
+
+static void
+output_syscall(struct process *proc, const char *name, enum tof tof,
+ bool left, struct timedelta *spent)
+{
+ if (left)
+ assert(spent == NULL);
+
struct library_symbol syscall;
- if (library_symbol_init(&syscall, 0, name, 0, LS_TOPLT_NONE) >= 0) {
- syscall.lib = &syscall_lib;
- (*output)(tof, proc, &syscall);
+ if (init_syscall_symbol(&syscall, name) >= 0) {
+ if (left) {
+ if (! options.summary)
+ output_left(tof, proc, &syscall);
+ } else if (options.summary) {
+ summary_account_call(&syscall, *spent);
+ } else {
+ output_right(tof, proc, &syscall, spent);
+ }
+
library_symbol_destroy(&syscall);
}
}
@@ -486,17 +546,19 @@ output_syscall(struct process *proc, const char *name, enum tof tof,
static void
output_syscall_left(struct process *proc, const char *name)
{
- output_syscall(proc, name, LT_TOF_SYSCALL, &output_left);
+ output_syscall(proc, name, LT_TOF_SYSCALL, true, NULL);
}
static void
-output_syscall_right(struct process *proc, const char *name)
+output_syscall_right(struct process *proc, const char *name,
+ struct timedelta *spent)
{
- output_syscall(proc, name, LT_TOF_SYSCALLR, &output_right);
+ output_syscall(proc, name, LT_TOF_SYSCALLR, false, spent);
}
static void
-handle_syscall(Event *event) {
+handle_syscall(Event *event)
+{
debug(DEBUG_FUNCTION, "handle_syscall(pid=%d, sysnum=%d)", event->proc->pid, event->e_un.sysnum);
if (event->proc->state != STATE_IGNORED) {
callstack_push_syscall(event->proc, event->e_un.sysnum);
@@ -526,6 +588,8 @@ handle_exec(Event *event)
}
output_line(proc, "--- Called exec() ---");
+ account_current_callstack(proc);
+
if (process_exec(proc) < 0) {
fprintf(stderr,
"couldn't reinitialize process %d after exec\n", pid);
@@ -549,74 +613,58 @@ handle_arch_syscall(Event *event) {
continue_process(event->proc->pid);
}
-struct timeval current_time_spent;
-
static void
-calc_time_spent(struct process *proc)
+handle_x_sysret(Event *event, char *(*name_cb)(struct process *, int))
{
- struct timeval tv;
- struct timezone tz;
- struct timeval diff;
- struct callstack_element *elem;
-
- debug(DEBUG_FUNCTION, "calc_time_spent(pid=%d)", proc->pid);
- elem = &proc->callstack[proc->callstack_depth - 1];
-
- gettimeofday(&tv, &tz);
+ debug(DEBUG_FUNCTION, "handle_x_sysret(pid=%d, sysnum=%d)",
+ event->proc->pid, event->e_un.sysnum);
- diff.tv_sec = tv.tv_sec - elem->time_spent.tv_sec;
- if (tv.tv_usec >= elem->time_spent.tv_usec) {
- diff.tv_usec = tv.tv_usec - elem->time_spent.tv_usec;
- } else {
- diff.tv_sec--;
- diff.tv_usec = 1000000 + tv.tv_usec - elem->time_spent.tv_usec;
- }
- current_time_spent = diff;
-}
+ unsigned d = event->proc->callstack_depth;
+ assert(d > 0);
+ struct callstack_element *elem = &event->proc->callstack[d - 1];
+ assert(elem->is_syscall);
-static void
-handle_sysret(Event *event) {
- debug(DEBUG_FUNCTION, "handle_sysret(pid=%d, sysnum=%d)", event->proc->pid, event->e_un.sysnum);
if (event->proc->state != STATE_IGNORED) {
- if (opt_T || options.summary) {
- calc_time_spent(event->proc);
- }
+ struct timedelta spent = calc_time_spent(elem->enter_time);
if (options.syscalls)
output_syscall_right(event->proc,
- sysname(event->proc,
- event->e_un.sysnum));
+ name_cb(event->proc,
+ event->e_un.sysnum),
+ &spent);
- assert(event->proc->callstack_depth > 0);
- unsigned d = event->proc->callstack_depth - 1;
- assert(event->proc->callstack[d].is_syscall);
callstack_pop(event->proc);
}
continue_after_syscall(event->proc, event->e_un.sysnum, 1);
}
static void
-handle_arch_sysret(Event *event) {
- debug(DEBUG_FUNCTION, "handle_arch_sysret(pid=%d, sysnum=%d)", event->proc->pid, event->e_un.sysnum);
- if (event->proc->state != STATE_IGNORED) {
- if (opt_T || options.summary) {
- calc_time_spent(event->proc);
- }
- if (options.syscalls)
- output_syscall_right(event->proc,
- arch_sysname(event->proc,
- event->e_un.sysnum));
- callstack_pop(event->proc);
- }
- continue_process(event->proc->pid);
+handle_sysret(Event *event)
+{
+ handle_x_sysret(event, &sysname);
+}
+
+static void
+handle_arch_sysret(Event *event)
+{
+ handle_x_sysret(event, &arch_sysname);
}
static void
output_right_tos(struct process *proc)
{
size_t d = proc->callstack_depth;
+ assert(d > 0);
struct callstack_element *elem = &proc->callstack[d - 1];
- if (proc->state != STATE_IGNORED)
- output_right(LT_TOF_FUNCTIONR, proc, elem->c_un.libfunc);
+ assert(! elem->is_syscall);
+
+ if (proc->state != STATE_IGNORED) {
+ struct timedelta spent = calc_time_spent(elem->enter_time);
+ if (options.summary)
+ summary_account_call(elem->c_un.libfunc, spent);
+ else
+ output_right(LT_TOF_FUNCTIONR, proc, elem->c_un.libfunc,
+ &spent);
+ }
}
#ifndef ARCH_HAVE_SYMBOL_RET
@@ -645,14 +693,8 @@ handle_breakpoint(Event *event)
for (i = event->proc->callstack_depth - 1; i >= 0; i--) {
if (brk_addr == event->proc->callstack[i].return_addr) {
- for (j = event->proc->callstack_depth - 1; j > i; j--) {
+ for (j = event->proc->callstack_depth - 1; j > i; j--)
callstack_pop(event->proc);
- }
- if (event->proc->state != STATE_IGNORED) {
- if (opt_T || options.summary) {
- calc_time_spent(event->proc);
- }
- }
struct library_symbol *libsym =
event->proc->callstack[i].c_un.libfunc;
@@ -705,11 +747,14 @@ handle_breakpoint(Event *event)
/* breakpoint_on_hit may delete its own breakpoint, so we have
* to look it up again. */
if ((sbp = address2bpstruct(leader, brk_addr)) != NULL) {
+
if (event->proc->state != STATE_IGNORED
&& sbp->libsym != NULL) {
event->proc->stack_pointer = get_stack_pointer(event->proc);
callstack_push_symfunc(event->proc, sbp);
- output_left(LT_TOF_FUNCTION, event->proc, sbp->libsym);
+ if (! options.summary)
+ output_left(LT_TOF_FUNCTION, event->proc,
+ sbp->libsym);
}
breakpoint_on_continue(sbp, event->proc);
@@ -743,7 +788,7 @@ callstack_push_syscall(struct process *proc, int sysnum)
proc->callstack_depth++;
if (opt_T || options.summary) {
struct timezone tz;
- gettimeofday(&elem->time_spent, &tz);
+ gettimeofday(&elem->enter_time, &tz);
}
}
@@ -781,7 +826,7 @@ callstack_push_symfunc(struct process *proc, struct breakpoint *bp)
if (opt_T || options.summary) {
struct timezone tz;
- gettimeofday(&elem->time_spent, &tz);
+ gettimeofday(&elem->enter_time, &tz);
}
}
diff --git a/libltrace.c b/libltrace.c
index 2d910a1..0112c9f 100644
--- a/libltrace.c
+++ b/libltrace.c
@@ -32,11 +32,12 @@
#include <string.h>
#include <unistd.h>
+#include "backend.h"
#include "common.h"
#include "proc.h"
-#include "read_config_file.h"
-#include "backend.h"
#include "prototype.h"
+#include "read_config_file.h"
+#include "summary.h"
char *command = NULL;
diff --git a/options.h b/options.h
index 6c28ed9..d0df3a7 100644
--- a/options.h
+++ b/options.h
@@ -1,6 +1,6 @@
/*
* This file is part of ltrace.
- * Copyright (C) 2012 Petr Machata, Red Hat Inc.
+ * Copyright (C) 2012,2013 Petr Machata, Red Hat Inc.
* Copyright (C) 2009,2010 Joe Damato
* Copyright (C) 1998,2002,2008 Juan Cespedes
* Copyright (C) 2006 Ian Wienand
@@ -103,12 +103,6 @@ int parse_colon_separated_list(const char *paths, struct vect *vec);
/* Vector of struct opt_F_t. */
extern struct vect opt_F;
-struct opt_c_struct {
- int count;
- struct timeval tv;
-};
-extern struct dict *dict_opt_c;
-
extern char **process_options(int argc, char **argv);
#endif /* _OPTIONS_H_ */
diff --git a/output.c b/output.c
index edf4522..82b6a5e 100644
--- a/output.c
+++ b/output.c
@@ -44,16 +44,12 @@
#include "param.h"
#include "proc.h"
#include "prototype.h"
+#include "summary.h"
#include "type.h"
#include "value.h"
#include "value_dict.h"
-/* TODO FIXME XXX: include in common.h: */
-extern struct timeval current_time_spent;
-
-struct dict *dict_opt_c = NULL;
-
-static struct process *current_proc = 0;
+static struct process *current_proc = NULL;
static size_t current_depth = 0;
static int current_column = 0;
@@ -498,9 +494,8 @@ void
output_left(enum tof type, struct process *proc,
struct library_symbol *libsym)
{
- if (options.summary) {
- return;
- }
+ assert(! options.summary);
+
if (current_proc) {
fprintf(options.output, " <unfinished ...>\n");
current_column = 0;
@@ -572,70 +567,21 @@ output_left(enum tof type, struct process *proc,
stel->out.need_delim = need_delim;
}
-static void
-free_stringp_cb(const char **stringp, void *data)
-{
- free((char *)*stringp);
-}
-
void
-output_right(enum tof type, struct process *proc, struct library_symbol *libsym)
+output_right(enum tof type, struct process *proc, struct library_symbol *libsym,
+ struct timedelta *spent)
{
+ assert(! options.summary);
+
struct prototype *func = lookup_symbol_prototype(proc, libsym);
if (func == NULL)
return;
-again:
- if (options.summary) {
- if (dict_opt_c == NULL) {
- dict_opt_c = malloc(sizeof(*dict_opt_c));
- if (dict_opt_c == NULL) {
- oom:
- fprintf(stderr,
- "Can't allocate memory for "
- "keeping track of -c.\n");
- free(dict_opt_c);
- options.summary = 0;
- goto again;
- }
- DICT_INIT(dict_opt_c, char *, struct opt_c_struct,
- dict_hash_string, dict_eq_string, NULL);
- }
-
- struct opt_c_struct *st
- = DICT_FIND_REF(dict_opt_c, &libsym->name,
- struct opt_c_struct);
- if (st == NULL) {
- const char *na = strdup(libsym->name);
- struct opt_c_struct new_st = {.count = 0, .tv = {0, 0}};
- if (na == NULL
- || DICT_INSERT(dict_opt_c, &na, &new_st) < 0) {
- free((char *)na);
- DICT_DESTROY(dict_opt_c, const char *,
- struct opt_c_struct,
- free_stringp_cb, NULL, NULL);
- goto oom;
- }
- st = DICT_FIND_REF(dict_opt_c, &libsym->name,
- struct opt_c_struct);
- assert(st != NULL);
- }
-
- if (st->tv.tv_usec + current_time_spent.tv_usec > 1000000) {
- st->tv.tv_usec += current_time_spent.tv_usec - 1000000;
- st->tv.tv_sec++;
- } else {
- st->tv.tv_usec += current_time_spent.tv_usec;
- }
- st->count++;
- st->tv.tv_sec += current_time_spent.tv_sec;
- return;
- }
-
- if (current_proc && (current_proc != proc ||
- current_depth != proc->callstack_depth)) {
+ if (current_proc != NULL
+ && (current_proc != proc
+ || current_depth != proc->callstack_depth)) {
fprintf(options.output, " <unfinished ...>\n");
- current_proc = 0;
+ current_proc = NULL;
}
if (current_proc != proc) {
begin_of_line(proc, type == LT_TOF_FUNCTIONR, 1);
@@ -689,10 +635,12 @@ again:
value_destroy(&retval);
if (opt_T) {
+ assert(spent != NULL);
fprintf(options.output, " <%lu.%06d>",
- (unsigned long)current_time_spent.tv_sec,
- (int)current_time_spent.tv_usec);
+ (unsigned long) spent->tm.tv_sec,
+ (int) spent->tm.tv_usec);
}
+
fprintf(options.output, "\n");
#if defined(HAVE_LIBUNWIND)
@@ -746,7 +694,7 @@ again:
}
#endif /* defined(HAVE_LIBUNWIND) */
- current_proc = 0;
+ current_proc = NULL;
current_column = 0;
}
diff --git a/output.h b/output.h
index b9f0518..2e74d61 100644
--- a/output.h
+++ b/output.h
@@ -1,6 +1,6 @@
/*
* This file is part of ltrace.
- * Copyright (C) 2011, 2012 Petr Machata, Red Hat Inc.
+ * Copyright (C) 2011, 2012, 2013 Petr Machata, Red Hat Inc.
* Copyright (C) 2009 Juan Cespedes
*
* This program is free software; you can redistribute it and/or
@@ -28,7 +28,8 @@ void output_line(struct process *proc, const char *fmt, ...);
void output_left(enum tof type, struct process *proc,
struct library_symbol *libsym);
void output_right(enum tof type, struct process *proc,
- struct library_symbol *libsym);
+ struct library_symbol *libsym,
+ struct timedelta *spent);
/* This function is for emitting lists of comma-separated strings.
*
diff --git a/proc.h b/proc.h
index e8032fa..64f8fe2 100644
--- a/proc.h
+++ b/proc.h
@@ -66,7 +66,7 @@ struct callstack_element {
} c_un;
int is_syscall;
arch_addr_t return_addr;
- struct timeval time_spent;
+ struct timeval enter_time;
struct fetch_context *fetch_context;
struct value_dict *arguments;
struct output_state out;
diff --git a/summary.c b/summary.c
index 9e22086..9103f71 100644
--- a/summary.c
+++ b/summary.c
@@ -22,11 +22,15 @@
#include "config.h"
+#include <sys/time.h>
#include <stdio.h>
#include <stdlib.h>
-#include <sys/time.h>
+#include <string.h>
-#include "common.h"
+#include "summary.h"
+#include "dict.h"
+#include "library.h"
+#include "options.h"
struct entry_st {
const char *name;
@@ -40,6 +44,32 @@ struct fill_struct_data {
unsigned long tot_usecs;
};
+struct opt_c_struct {
+ int count;
+ struct timeval tv;
+};
+
+static struct dict *dict_opt_c;
+
+struct timedelta
+calc_time_spent(struct timeval start)
+{
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+
+ struct timeval diff;
+ diff.tv_sec = tv.tv_sec - start.tv_sec;
+ if (tv.tv_usec >= start.tv_usec) {
+ diff.tv_usec = tv.tv_usec - start.tv_usec;
+ } else {
+ diff.tv_sec--;
+ diff.tv_usec = 1000000 + tv.tv_usec - start.tv_usec;
+ }
+
+ struct timedelta ret = { diff };
+ return ret;
+}
+
static enum callback_status
fill_struct(const char **namep, struct opt_c_struct *st, void *u)
{
@@ -114,3 +144,58 @@ show_summary(void)
vect_destroy(&cdata.entries, NULL, NULL);
}
+
+static void
+free_stringp_cb(const char **stringp, void *data)
+{
+ free((char *)*stringp);
+}
+
+void
+summary_account_call(struct library_symbol *libsym, struct timedelta spent)
+{
+ assert(options.summary);
+
+ if (dict_opt_c == NULL) {
+ dict_opt_c = malloc(sizeof(*dict_opt_c));
+ if (dict_opt_c == NULL) {
+ oom:
+ fprintf(stderr,
+ "Can't allocate memory for "
+ "keeping track of -c.\n");
+ free(dict_opt_c);
+ options.summary = 0;
+ return;
+ }
+ DICT_INIT(dict_opt_c, char *, struct opt_c_struct,
+ dict_hash_string, dict_eq_string, NULL);
+ }
+
+ struct opt_c_struct *st = DICT_FIND_REF(dict_opt_c, &libsym->name,
+ struct opt_c_struct);
+ if (st == NULL) {
+ const char *na = strdup(libsym->name);
+ struct opt_c_struct new_st = {.count = 0, .tv = {0, 0}};
+ if (na == NULL
+ || DICT_INSERT(dict_opt_c, &na, &new_st) < 0) {
+ free((char *) na);
+ DICT_DESTROY(dict_opt_c, const char *,
+ struct opt_c_struct,
+ free_stringp_cb, NULL, NULL);
+ goto oom;
+ }
+ st = DICT_FIND_REF(dict_opt_c, &libsym->name,
+ struct opt_c_struct);
+ assert(st != NULL);
+ }
+
+ if (st->tv.tv_usec + spent.tm.tv_usec > 1000000) {
+ st->tv.tv_usec += spent.tm.tv_usec - 1000000;
+ st->tv.tv_sec++;
+ } else {
+ st->tv.tv_usec += spent.tm.tv_usec;
+ }
+ st->count++;
+ st->tv.tv_sec += spent.tm.tv_sec;
+ return;
+}
diff --git a/summary.h b/summary.h
new file mode 100644
index 0000000..f680ef9
--- /dev/null
+++ b/summary.h
@@ -0,0 +1,35 @@
+/*
+ * This file is part of ltrace.
+ * Copyright (C) 2013 Petr Machata, Red Hat Inc.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef _SUMMARY_H_
+#define _SUMMARY_H_
+
+#include "forward.h"
+
+struct timedelta {
+ struct timeval tm;
+};
+
+struct timedelta calc_time_spent(struct timeval start);
+void summary_account_call(struct library_symbol *libsym,
+ struct timedelta spent);
+void show_summary(void);
+
+#endif /* _SUMMARY_H_ */
diff --git a/testsuite/ltrace.minor/trace-exec.exp b/testsuite/ltrace.minor/trace-exec.exp
index 7a953de..57260f8 100644
--- a/testsuite/ltrace.minor/trace-exec.exp
+++ b/testsuite/ltrace.minor/trace-exec.exp
@@ -1,5 +1,5 @@
# This file is part of ltrace.
-# Copyright (C) 2012 Petr Machata, Red Hat Inc.
+# Copyright (C) 2012, 2013 Petr Machata, Red Hat Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
@@ -16,22 +16,30 @@
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
# 02110-1301 USA
-ltraceMatch [ltraceRun -xmain -- [ltraceCompile {} [ltraceSource c {
+set bin1 [ltraceCompile {} [ltraceSource c {
#include <unistd.h>
#include <stdlib.h>
int main(int argc, char ** argv) {
execl(argv[1], argv[1], NULL);
abort();
}
-}]] [ltraceCompile {} [ltraceSource c {
+}]]
+
+set bin2 [ltraceCompile {} [ltraceSource c {
#include <stdio.h>
int main(void) {
return puts("Hello, World.");
}
-}]]] {
+}]]
+
+ltraceMatch [ltraceRun -xmain -- $bin1 $bin2] {
{{^execl\(} == 1}
{{^puts\(.*\) .*= 14} == 1}
{{^main\(} == 2}
}
+ltraceMatch [ltraceRun -c -- $bin1 $bin2] {
+ {{exec} > 0}
+}
+
ltraceDone
--
1.7.6.5

610
ltrace-0.7.91-arm.patch Normal file
View File

@ -0,0 +1,610 @@
diff --git a/ltrace-elf.c b/ltrace-elf.c
index 92b642b..6f86d56 100644
--- a/ltrace-elf.c
+++ b/ltrace-elf.c
@@ -531,6 +531,38 @@ elf_read_relocs(struct ltelf *lte, Elf_Scn *scn, GElf_Shdr *shdr,
return 0;
}
+int
+elf_load_dynamic_entry(struct ltelf *lte, int tag, GElf_Addr *valuep)
+{
+ Elf_Scn *scn;
+ GElf_Shdr shdr;
+ if (elf_get_section_type(lte, SHT_DYNAMIC, &scn, &shdr) < 0
+ || scn == NULL) {
+ fail:
+ fprintf(stderr, "Couldn't get SHT_DYNAMIC: %s\n",
+ elf_errmsg(-1));
+ return -1;
+ }
+
+ Elf_Data *data = elf_loaddata(scn, &shdr);
+ if (data == NULL)
+ goto fail;
+
+ size_t j;
+ for (j = 0; j < shdr.sh_size / shdr.sh_entsize; ++j) {
+ GElf_Dyn dyn;
+ if (gelf_getdyn(data, j, &dyn) == NULL)
+ goto fail;
+
+ if(dyn.d_tag == tag) {
+ *valuep = dyn.d_un.d_ptr;
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
static int
ltelf_read_elf(struct ltelf *lte, const char *filename)
{
diff --git a/ltrace-elf.h b/ltrace-elf.h
index ea14512..db4ffe9 100644
--- a/ltrace-elf.h
+++ b/ltrace-elf.h
@@ -139,6 +139,10 @@ struct elf_each_symbol_t {
int elf_read_relocs(struct ltelf *lte, Elf_Scn *scn, GElf_Shdr *shdr,
struct vect *rela_vec);
+/* Read a given DT_ TAG from LTE. Value is returned in *VALUEP.
+ * Returns 0 on success or a negative value on failure. */
+int elf_load_dynamic_entry(struct ltelf *lte, int tag, GElf_Addr *valuep);
+
/* Read, respectively, 1, 2, 4, or 8 bytes from Elf data at given
* OFFSET, and store it in *RETP. Returns 0 on success or a negative
* value if there's not enough data. */
diff --git a/sysdeps/linux-gnu/arm/arch.h b/sysdeps/linux-gnu/arm/arch.h
index 58a7fdf..6d0d902 100644
--- a/sysdeps/linux-gnu/arm/arch.h
+++ b/sysdeps/linux-gnu/arm/arch.h
@@ -22,6 +22,8 @@
#ifndef LTRACE_ARM_ARCH_H
#define LTRACE_ARM_ARCH_H
+#include <libelf.h>
+
#define ARCH_HAVE_ENABLE_BREAKPOINT 1
#define ARCH_HAVE_DISABLE_BREAKPOINT 1
@@ -47,7 +49,7 @@ struct arch_breakpoint_data {
#define ARCH_HAVE_LTELF_DATA
struct arch_ltelf_data {
- /* We have this only for the hooks. */
+ Elf_Data *jmprel_data;
};
#define ARCH_HAVE_LIBRARY_DATA
diff --git a/sysdeps/linux-gnu/arm/fetch.c b/sysdeps/linux-gnu/arm/fetch.c
index 5081d78..b500448 100644
--- a/sysdeps/linux-gnu/arm/fetch.c
+++ b/sysdeps/linux-gnu/arm/fetch.c
@@ -32,200 +32,12 @@
#include "backend.h"
#include "fetch.h"
#include "library.h"
-#include "ltrace-elf.h"
#include "proc.h"
#include "ptrace.h"
#include "regs.h"
#include "type.h"
#include "value.h"
-static int
-get_hardfp(uint64_t abi_vfp_args)
-{
- if (abi_vfp_args == 2)
- fprintf(stderr,
- "Tag_ABI_VFP_args value 2 (tool chain-specific "
- "conventions) not supported.\n");
- return abi_vfp_args == 1;
-}
-
-int
-arch_elf_init(struct ltelf *lte, struct library *lib)
-{
- /* Nothing in this section is strictly critical. It's not
- * that much of a deal if we fail to guess right whether the
- * ABI is softfp or hardfp. */
- unsigned hardfp = 0;
-
- Elf_Scn *scn;
- Elf_Data *data;
- GElf_Shdr shdr;
- if (elf_get_section_type(lte, SHT_ARM_ATTRIBUTES, &scn, &shdr) < 0
- || (scn != NULL && (data = elf_loaddata(scn, &shdr)) == NULL)) {
- fprintf(stderr,
- "Error when obtaining ARM attribute section: %s\n",
- elf_errmsg(-1));
- goto done;
-
- } else if (scn != NULL && data != NULL) {
- GElf_Xword offset = 0;
- uint8_t version;
- if (elf_read_next_u8(data, &offset, &version) < 0) {
- goto done;
- } else if (version != 'A') {
- fprintf(stderr, "Unsupported ARM attribute section "
- "version %d ('%c').\n", version, version);
- goto done;
- }
-
- do {
- const char signature[] = "aeabi";
- /* N.B. LEN is including the length field
- * itself. */
- uint32_t sec_len;
- if (elf_read_u32(data, offset, &sec_len) < 0
- || !elf_can_read_next(data, offset, sec_len)) {
- goto done;
- }
- const GElf_Xword next_offset = offset + sec_len;
- offset += 4;
-
- if (sec_len < 4 + sizeof signature
- || strcmp(signature, data->d_buf + offset) != 0)
- goto skip;
- offset += sizeof signature;
-
- const GElf_Xword offset0 = offset;
- uint64_t tag;
- uint32_t sub_len;
- if (elf_read_next_uleb128(data, &offset, &tag) < 0
- || elf_read_next_u32(data, &offset, &sub_len) < 0
- || !elf_can_read_next(data, offset0, sub_len))
- goto done;
-
- if (tag != 1)
- /* IHI0045D_ABI_addenda: "section and
- * symbol attributes are deprecated
- * [...] consumers are permitted to
- * ignore them." */
- goto skip;
-
- while (offset < offset0 + sub_len) {
- if (elf_read_next_uleb128(data,
- &offset, &tag) < 0)
- goto done;
-
- switch (tag) {
- uint64_t v;
- case 6: /* Tag_CPU_arch */
- case 7: /* Tag_CPU_arch_profile */
- case 8: /* Tag_ARM_ISA_use */
- case 9: /* Tag_THUMB_ISA_use */
- case 10: /* Tag_FP_arch */
- case 11: /* Tag_WMMX_arch */
- case 12: /* Tag_Advanced_SIMD_arch */
- case 13: /* Tag_PCS_config */
- case 14: /* Tag_ABI_PCS_R9_use */
- case 15: /* Tag_ABI_PCS_RW_data */
- case 16: /* Tag_ABI_PCS_RO_data */
- case 17: /* Tag_ABI_PCS_GOT_use */
- case 18: /* Tag_ABI_PCS_wchar_t */
- case 19: /* Tag_ABI_FP_rounding */
- case 20: /* Tag_ABI_FP_denormal */
- case 21: /* Tag_ABI_FP_exceptions */
- case 22: /* Tag_ABI_FP_user_exceptions */
- case 23: /* Tag_ABI_FP_number_model */
- case 24: /* Tag_ABI_align_needed */
- case 25: /* Tag_ABI_align_preserved */
- case 26: /* Tag_ABI_enum_size */
- case 27: /* Tag_ABI_HardFP_use */
- case 28: /* Tag_ABI_VFP_args */
- case 29: /* Tag_ABI_WMMX_args */
- case 30: /* Tag_ABI_optimization_goals */
- case 31: /* Tag_ABI_FP_optimization_goals */
- case 32: /* Tag_compatibility */
- case 34: /* Tag_CPU_unaligned_access */
- case 36: /* Tag_FP_HP_extension */
- case 38: /* Tag_ABI_FP_16bit_format */
- case 42: /* Tag_MPextension_use */
- case 70: /* Tag_MPextension_use as well */
- case 44: /* Tag_DIV_use */
- case 64: /* Tag_nodefaults */
- case 66: /* Tag_T2EE_use */
- case 68: /* Tag_Virtualization_use */
- uleb128:
- if (elf_read_next_uleb128
- (data, &offset, &v) < 0)
- goto done;
- if (tag == 28)
- hardfp = get_hardfp(v);
- if (tag != 32)
- continue;
-
- /* Tag 32 has two arguments,
- * fall through. */
-
- case 4: /* Tag_CPU_raw_name */
- case 5: /* Tag_CPU_name */
- case 65: /* Tag_also_compatible_with */
- case 67: /* Tag_conformance */
- ntbs:
- offset += strlen(data->d_buf
- + offset) + 1;
- continue;
- }
-
- /* Handle unknown tags in a generic
- * manner, if possible. */
- if (tag <= 32) {
- fprintf(stderr,
- "Unknown tag %lld "
- "at offset %#llx "
- "of ARM attribute section.",
- tag, offset);
- goto skip;
- } else if (tag % 2 == 0) {
- goto uleb128;
- } else {
- goto ntbs;
- }
- }
-
- skip:
- offset = next_offset;
-
- } while (elf_can_read_next(data, offset, 1));
-
- }
-
-done:
- lib->arch.hardfp = hardfp;
- return 0;
-}
-
-void
-arch_elf_destroy(struct ltelf *lte)
-{
-}
-
-int
-arch_library_init(struct library *lib)
-{
- return 0;
-}
-
-void
-arch_library_destroy(struct library *lib)
-{
-}
-
-int
-arch_library_clone(struct library *retp, struct library *lib)
-{
- retp->arch = lib->arch;
- return 0;
-}
-
enum {
/* How many (double) VFP registers the AAPCS uses for
* parameter passing. */
diff --git a/sysdeps/linux-gnu/arm/plt.c b/sysdeps/linux-gnu/arm/plt.c
index d1bf7ca..9e9e37f 100644
--- a/sysdeps/linux-gnu/arm/plt.c
+++ b/sysdeps/linux-gnu/arm/plt.c
@@ -1,5 +1,6 @@
/*
* This file is part of ltrace.
+ * Copyright (C) 2013 Petr Machata, Red Hat Inc.
* Copyright (C) 2010 Zach Welch, CodeSourcery
* Copyright (C) 2004,2008,2009 Juan Cespedes
*
@@ -20,20 +21,205 @@
*/
#include <gelf.h>
+#include <stdio.h>
+#include <string.h>
#include "proc.h"
#include "library.h"
#include "ltrace-elf.h"
static int
+get_hardfp(uint64_t abi_vfp_args)
+{
+ if (abi_vfp_args == 2)
+ fprintf(stderr,
+ "Tag_ABI_VFP_args value 2 (tool chain-specific "
+ "conventions) not supported.\n");
+ return abi_vfp_args == 1;
+}
+
+int
+arch_elf_init(struct ltelf *lte, struct library *lib)
+{
+ GElf_Addr jmprel_addr;
+ Elf_Scn *jmprel_sec;
+ GElf_Shdr jmprel_shdr;
+ if (elf_load_dynamic_entry(lte, DT_JMPREL, &jmprel_addr) < 0
+ || elf_get_section_covering(lte, jmprel_addr,
+ &jmprel_sec, &jmprel_shdr) < 0
+ || jmprel_sec == NULL)
+ return -1;
+
+ lte->arch.jmprel_data = elf_loaddata(jmprel_sec, &jmprel_shdr);
+ if (lte->arch.jmprel_data == NULL)
+ return -1;
+
+ /* Nothing in this section is strictly critical. It's not
+ * that much of a deal if we fail to guess right whether the
+ * ABI is softfp or hardfp. */
+ unsigned hardfp = 0;
+
+ Elf_Scn *scn;
+ Elf_Data *data;
+ GElf_Shdr shdr;
+ if (elf_get_section_type(lte, SHT_ARM_ATTRIBUTES, &scn, &shdr) < 0
+ || (scn != NULL && (data = elf_loaddata(scn, &shdr)) == NULL)) {
+ fprintf(stderr,
+ "Error when obtaining ARM attribute section: %s\n",
+ elf_errmsg(-1));
+ goto done;
+
+ } else if (scn != NULL && data != NULL) {
+ GElf_Xword offset = 0;
+ uint8_t version;
+ if (elf_read_next_u8(data, &offset, &version) < 0) {
+ goto done;
+ } else if (version != 'A') {
+ fprintf(stderr, "Unsupported ARM attribute section "
+ "version %d ('%c').\n", version, version);
+ goto done;
+ }
+
+ do {
+ const char signature[] = "aeabi";
+ /* N.B. LEN is including the length field
+ * itself. */
+ uint32_t sec_len;
+ if (elf_read_u32(data, offset, &sec_len) < 0
+ || !elf_can_read_next(data, offset, sec_len)) {
+ goto done;
+ }
+ const GElf_Xword next_offset = offset + sec_len;
+ offset += 4;
+
+ if (sec_len < 4 + sizeof signature
+ || strcmp(signature, data->d_buf + offset) != 0)
+ goto skip;
+ offset += sizeof signature;
+
+ const GElf_Xword offset0 = offset;
+ uint64_t tag;
+ uint32_t sub_len;
+ if (elf_read_next_uleb128(data, &offset, &tag) < 0
+ || elf_read_next_u32(data, &offset, &sub_len) < 0
+ || !elf_can_read_next(data, offset0, sub_len))
+ goto done;
+
+ if (tag != 1)
+ /* IHI0045D_ABI_addenda: "section and
+ * symbol attributes are deprecated
+ * [...] consumers are permitted to
+ * ignore them." */
+ goto skip;
+
+ while (offset < offset0 + sub_len) {
+ if (elf_read_next_uleb128(data,
+ &offset, &tag) < 0)
+ goto done;
+
+ switch (tag) {
+ uint64_t v;
+ case 6: /* Tag_CPU_arch */
+ case 7: /* Tag_CPU_arch_profile */
+ case 8: /* Tag_ARM_ISA_use */
+ case 9: /* Tag_THUMB_ISA_use */
+ case 10: /* Tag_FP_arch */
+ case 11: /* Tag_WMMX_arch */
+ case 12: /* Tag_Advanced_SIMD_arch */
+ case 13: /* Tag_PCS_config */
+ case 14: /* Tag_ABI_PCS_R9_use */
+ case 15: /* Tag_ABI_PCS_RW_data */
+ case 16: /* Tag_ABI_PCS_RO_data */
+ case 17: /* Tag_ABI_PCS_GOT_use */
+ case 18: /* Tag_ABI_PCS_wchar_t */
+ case 19: /* Tag_ABI_FP_rounding */
+ case 20: /* Tag_ABI_FP_denormal */
+ case 21: /* Tag_ABI_FP_exceptions */
+ case 22: /* Tag_ABI_FP_user_exceptions */
+ case 23: /* Tag_ABI_FP_number_model */
+ case 24: /* Tag_ABI_align_needed */
+ case 25: /* Tag_ABI_align_preserved */
+ case 26: /* Tag_ABI_enum_size */
+ case 27: /* Tag_ABI_HardFP_use */
+ case 28: /* Tag_ABI_VFP_args */
+ case 29: /* Tag_ABI_WMMX_args */
+ case 30: /* Tag_ABI_optimization_goals */
+ case 31: /* Tag_ABI_FP_optimization_goals */
+ case 32: /* Tag_compatibility */
+ case 34: /* Tag_CPU_unaligned_access */
+ case 36: /* Tag_FP_HP_extension */
+ case 38: /* Tag_ABI_FP_16bit_format */
+ case 42: /* Tag_MPextension_use */
+ case 70: /* Tag_MPextension_use as well */
+ case 44: /* Tag_DIV_use */
+ case 64: /* Tag_nodefaults */
+ case 66: /* Tag_T2EE_use */
+ case 68: /* Tag_Virtualization_use */
+ uleb128:
+ if (elf_read_next_uleb128
+ (data, &offset, &v) < 0)
+ goto done;
+ if (tag == 28)
+ hardfp = get_hardfp(v);
+ if (tag != 32)
+ continue;
+
+ /* Tag 32 has two arguments,
+ * fall through. */
+
+ case 4: /* Tag_CPU_raw_name */
+ case 5: /* Tag_CPU_name */
+ case 65: /* Tag_also_compatible_with */
+ case 67: /* Tag_conformance */
+ ntbs:
+ offset += strlen(data->d_buf
+ + offset) + 1;
+ continue;
+ }
+
+ /* Handle unknown tags in a generic
+ * manner, if possible. */
+ if (tag <= 32) {
+ fprintf(stderr,
+ "Unknown tag %lld "
+ "at offset %#llx "
+ "of ARM attribute section.",
+ tag, offset);
+ goto skip;
+ } else if (tag % 2 == 0) {
+ goto uleb128;
+ } else {
+ goto ntbs;
+ }
+ }
+
+ skip:
+ offset = next_offset;
+
+ } while (elf_can_read_next(data, offset, 1));
+
+ }
+
+done:
+ lib->arch.hardfp = hardfp;
+ return 0;
+}
+
+void
+arch_elf_destroy(struct ltelf *lte)
+{
+}
+
+static int
arch_plt_entry_has_stub(struct ltelf *lte, size_t off) {
- uint16_t op = *(uint16_t *)((char *)lte->relplt->d_buf + off);
+ char *buf = (char *) lte->arch.jmprel_data->d_buf;
+ uint16_t op = *(uint16_t *) (buf + off);
return op == 0x4778;
}
GElf_Addr
arch_plt_sym_val(struct ltelf *lte, size_t ndx, GElf_Rela * rela) {
- size_t start = lte->relplt->d_size + 12;
+ size_t start = lte->arch.jmprel_data->d_size + 12;
size_t off = start + 20, i;
for (i = 0; i < ndx; i++)
off += arch_plt_entry_has_stub(lte, off) ? 16 : 12;
@@ -47,3 +233,21 @@ sym2addr(struct process *proc, struct library_symbol *sym)
{
return sym->enter_addr;
}
+
+int
+arch_library_init(struct library *lib)
+{
+ return 0;
+}
+
+void
+arch_library_destroy(struct library *lib)
+{
+}
+
+int
+arch_library_clone(struct library *retp, struct library *lib)
+{
+ retp->arch = lib->arch;
+ return 0;
+}
diff --git a/sysdeps/linux-gnu/ppc/plt.c b/sysdeps/linux-gnu/ppc/plt.c
index 5e3ffe1..3ec1397 100644
--- a/sysdeps/linux-gnu/ppc/plt.c
+++ b/sysdeps/linux-gnu/ppc/plt.c
@@ -402,38 +402,6 @@ get_glink_vma(struct ltelf *lte, GElf_Addr ppcgot, Elf_Data *plt_data)
}
static int
-load_dynamic_entry(struct ltelf *lte, int tag, GElf_Addr *valuep)
-{
- Elf_Scn *scn;
- GElf_Shdr shdr;
- if (elf_get_section_type(lte, SHT_DYNAMIC, &scn, &shdr) < 0
- || scn == NULL) {
- fail:
- fprintf(stderr, "Couldn't get SHT_DYNAMIC: %s\n",
- elf_errmsg(-1));
- return -1;
- }
-
- Elf_Data *data = elf_loaddata(scn, &shdr);
- if (data == NULL)
- goto fail;
-
- size_t j;
- for (j = 0; j < shdr.sh_size / shdr.sh_entsize; ++j) {
- GElf_Dyn dyn;
- if (gelf_getdyn(data, j, &dyn) == NULL)
- goto fail;
-
- if(dyn.d_tag == tag) {
- *valuep = dyn.d_un.d_ptr;
- return 0;
- }
- }
-
- return -1;
-}
-
-static int
nonzero_data(Elf_Data *data)
{
/* We are not supposed to get here if there's no PLT. */
@@ -488,8 +456,8 @@ arch_elf_init(struct ltelf *lte, struct library *lib)
Elf_Scn *rela_sec;
GElf_Shdr rela_shdr;
if ((lte->ehdr.e_machine == EM_PPC64 || lte->arch.secure_plt)
- && load_dynamic_entry(lte, DT_RELA, &rela) == 0
- && load_dynamic_entry(lte, DT_RELASZ, &relasz) == 0
+ && elf_load_dynamic_entry(lte, DT_RELA, &rela) == 0
+ && elf_load_dynamic_entry(lte, DT_RELASZ, &relasz) == 0
&& elf_get_section_covering(lte, rela, &rela_sec, &rela_shdr) == 0
&& rela_sec != NULL) {
@@ -509,7 +477,7 @@ arch_elf_init(struct ltelf *lte, struct library *lib)
if (lte->ehdr.e_machine == EM_PPC && lte->arch.secure_plt) {
GElf_Addr ppcgot;
- if (load_dynamic_entry(lte, DT_PPC_GOT, &ppcgot) < 0) {
+ if (elf_load_dynamic_entry(lte, DT_PPC_GOT, &ppcgot) < 0) {
fprintf(stderr, "couldn't find DT_PPC_GOT\n");
return -1;
}
@@ -522,7 +490,8 @@ arch_elf_init(struct ltelf *lte, struct library *lib)
} else if (lte->ehdr.e_machine == EM_PPC64) {
GElf_Addr glink_vma;
- if (load_dynamic_entry(lte, DT_PPC64_GLINK, &glink_vma) < 0) {
+ if (elf_load_dynamic_entry(lte, DT_PPC64_GLINK,
+ &glink_vma) < 0) {
fprintf(stderr, "couldn't find DT_PPC64_GLINK\n");
return -1;
}
@@ -532,8 +501,8 @@ arch_elf_init(struct ltelf *lte, struct library *lib)
} else {
/* By exhaustion--PPC32 BSS. */
- if (load_dynamic_entry(lte, DT_PLTGOT,
- &lib->arch.pltgot_addr) < 0) {
+ if (elf_load_dynamic_entry(lte, DT_PLTGOT,
+ &lib->arch.pltgot_addr) < 0) {
fprintf(stderr, "couldn't find DT_PLTGOT\n");
return -1;
}

View File

@ -0,0 +1,81 @@
From 56134ff5442bee4e128b189bb86cfc97dcb6f60a Mon Sep 17 00:00:00 2001
From: Petr Machata <pmachata@redhat.com>
Date: Fri, 10 Jan 2014 20:05:15 +0100
Subject: [PATCH 1/2] Add a new per-breakpoint callback on_install
---
breakpoint.h | 9 ++++++++-
breakpoints.c | 11 ++++++++++-
2 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/breakpoint.h b/breakpoint.h
index 95964a8..c36f673 100644
--- a/breakpoint.h
+++ b/breakpoint.h
@@ -1,6 +1,6 @@
/*
* This file is part of ltrace.
- * Copyright (C) 2012, 2013 Petr Machata, Red Hat Inc.
+ * Copyright (C) 2012,2013,2014 Petr Machata, Red Hat Inc.
* Copyright (C) 2009 Juan Cespedes
*
* This program is free software; you can redistribute it and/or
@@ -46,6 +46,7 @@
struct bp_callbacks {
void (*on_hit)(struct breakpoint *bp, struct process *proc);
void (*on_continue)(struct breakpoint *bp, struct process *proc);
+ void (*on_install)(struct breakpoint *bp, struct process *proc);
void (*on_retract)(struct breakpoint *bp, struct process *proc);
/* Create a new breakpoint that should handle return from the
@@ -84,6 +85,12 @@ void breakpoint_on_continue(struct breakpoint *bp, struct process *proc);
* the instruction underneath it). */
void breakpoint_on_retract(struct breakpoint *bp, struct process *proc);
+/* Call ON_INSTALL handler of BP, if any is set. This should be
+ * called after the breakpoint is enabled for the first time, not
+ * every time it's enabled (such as after stepping over a site of a
+ * temporarily disabled breakpoint). */
+void breakpoint_on_install(struct breakpoint *bp, struct process *proc);
+
/* Call GET_RETURN_BP handler of BP, if any is set. If none is set,
* call CREATE_DEFAULT_RETURN_BP to obtain one. */
int breakpoint_get_return_bp(struct breakpoint **ret,
diff --git a/breakpoints.c b/breakpoints.c
index 947cb71..c3fa275 100644
--- a/breakpoints.c
+++ b/breakpoints.c
@@ -1,6 +1,6 @@
/*
* This file is part of ltrace.
- * Copyright (C) 2006,2007,2011,2012,2013 Petr Machata, Red Hat Inc.
+ * Copyright (C) 2006,2007,2011,2012,2013,2014 Petr Machata, Red Hat Inc.
* Copyright (C) 2009 Juan Cespedes
* Copyright (C) 1998,2001,2002,2003,2007,2008,2009 Juan Cespedes
* Copyright (C) 2006 Ian Wienand
@@ -85,6 +85,14 @@ breakpoint_on_retract(struct breakpoint *bp, struct process *proc)
(bp->cbs->on_retract)(bp, proc);
}
+void
+breakpoint_on_install(struct breakpoint *bp, struct process *proc)
+{
+ assert(bp != NULL);
+ if (bp->cbs != NULL && bp->cbs->on_install != NULL)
+ (bp->cbs->on_install)(bp, proc);
+}
+
int
breakpoint_get_return_bp(struct breakpoint **ret,
struct breakpoint *bp, struct process *proc)
@@ -229,6 +237,7 @@ breakpoint_turn_on(struct breakpoint *bp, struct process *proc)
if (bp->enabled == 1) {
assert(proc->pid != 0);
enable_breakpoint(proc, bp);
+ breakpoint_on_install(bp, proc);
}
return 0;
}
--
1.7.6.5

View File

@ -0,0 +1,36 @@
diff -urp ltrace-0.7.91/libltrace.c master/libltrace.c
--- ltrace-0.7.91/libltrace.c 2014-01-14 16:31:37.696174464 +0100
+++ master/libltrace.c 2013-11-21 14:06:38.623701688 +0100
@@ -113,9 +117,13 @@ ltrace_init(int argc, char **argv) {
if (command) {
/* Check that the binary ABI is supported before
* calling execute_program. */
- struct ltelf lte;
- ltelf_init(&lte, command);
- ltelf_destroy(&lte);
+ {
+ struct ltelf lte;
+ if (ltelf_init(&lte, command) == 0)
+ ltelf_destroy(&lte);
+ else
+ exit(EXIT_FAILURE);
+ }
pid_t pid = execute_program(command, argv);
struct process *proc = open_program(command, pid);
diff -urp ltrace-0.7.91/ltrace-elf.c master/ltrace-elf.c
--- ltrace-0.7.91/ltrace-elf.c 2014-01-14 16:31:37.688174420 +0100
+++ master/ltrace-elf.c 2013-11-22 18:17:11.767721609 +0100
@@ -361,8 +361,11 @@ ltelf_init(struct ltelf *lte, const char
{
memset(lte, 0, sizeof *lte);
lte->fd = open(filename, O_RDONLY);
- if (lte->fd == -1)
+ if (lte->fd == -1) {
+ fprintf(stderr, "Can't open %s: %s\n", filename,
+ strerror(errno));
return 1;
+ }
elf_version(EV_CURRENT);

121
ltrace-0.7.91-cet.patch Normal file
View File

@ -0,0 +1,121 @@
diff -rup a/ltrace-elf.c b/ltrace-elf.c
--- a/ltrace-elf.c 2019-02-28 17:32:49.873659818 -0500
+++ b/ltrace-elf.c 2019-02-28 17:36:32.426779439 -0500
@@ -639,7 +639,21 @@ ltelf_read_elf(struct ltelf *lte, const
}
} else if (shdr.sh_type == SHT_PROGBITS
|| shdr.sh_type == SHT_NOBITS) {
- if (strcmp(name, ".plt") == 0) {
+ if (strcmp(name, ".plt") == 0
+ && lte->second_plt_seen == 0) {
+ lte->plt_addr = shdr.sh_addr;
+ lte->plt_size = shdr.sh_size;
+ lte->plt_data = elf_loaddata(scn, &shdr);
+ if (lte->plt_data == NULL)
+ fprintf(stderr,
+ "Can't load .plt data\n");
+ lte->plt_flags = shdr.sh_flags;
+ }
+ /* An Intel CET binary has two PLTs; the
+ initial PLTGOT points to the second
+ one. */
+ else if (strcmp(name, ".plt.sec") == 0) {
+ lte->second_plt_seen = 1;
lte->plt_addr = shdr.sh_addr;
lte->plt_size = shdr.sh_size;
lte->plt_data = elf_loaddata(scn, &shdr);
diff -rup a/ltrace-elf.h b/ltrace-elf.h
--- a/ltrace-elf.h 2019-02-28 17:32:49.874660328 -0500
+++ b/ltrace-elf.h 2019-02-28 17:36:32.428779868 -0500
@@ -45,6 +45,7 @@ struct ltelf {
Elf_Data *dynsym;
size_t dynsym_count;
const char *dynstr;
+ int second_plt_seen;
GElf_Addr plt_addr;
GElf_Word plt_flags;
size_t plt_size;
diff -rup a/sysdeps/linux-gnu/x86/plt.c b/sysdeps/linux-gnu/x86/plt.c
--- a/sysdeps/linux-gnu/x86/plt.c 2019-02-28 17:32:49.991720041 -0500
+++ b/sysdeps/linux-gnu/x86/plt.c 2019-02-28 17:36:32.429780083 -0500
@@ -28,18 +28,18 @@
#include "trace.h"
static GElf_Addr
-x86_plt_offset(uint32_t i)
+x86_plt_offset(struct ltelf *lte, uint32_t i)
{
/* Skip the first PLT entry, which contains a stub to call the
* resolver. */
- return (i + 1) * 16;
+ return (i + (lte->second_plt_seen ? 0 : 1)) * 16;
}
GElf_Addr
arch_plt_sym_val(struct ltelf *lte, size_t ndx, GElf_Rela *rela)
{
uint32_t i = *VECT_ELEMENT(&lte->arch.plt_map, uint32_t, ndx);
- return x86_plt_offset(i) + lte->plt_addr;
+ return x86_plt_offset(lte, i) + lte->plt_addr;
}
void *
@@ -116,6 +116,13 @@ arch_elf_init(struct ltelf *lte, struct
* 400426: 68 00 00 00 00 pushq $0x0
* 40042b: e9 e0 ff ff ff jmpq 400410 <_init+0x18>
*
+ * For CET binaries it is the following:
+ *
+ * 13d0: f3 0f 1e fa endbr64
+ * 13d4: 68 27 00 00 00 pushq $0x27 <-- index
+ * 13d9: f2 e9 71 fd ff ff bnd jmpq 1150 <.plt>
+ * 13df: 90 nop
+ *
* On i386, the argument to push is an offset of relocation to
* use. The first PLT slot has an offset of 0x0, the second
* 0x8, etc. On x86_64, it's directly the index that we are
@@ -128,11 +135,33 @@ arch_elf_init(struct ltelf *lte, struct
unsigned int i, sz = vect_size(&lte->plt_relocs);
for (i = 0; i < sz; ++i) {
- GElf_Addr offset = x86_plt_offset(i);
+ GElf_Addr offset = x86_plt_offset(lte, i);
+ uint32_t reloc_arg;
uint8_t byte;
- if (elf_read_next_u8(lte->plt_data, &offset, &byte) < 0
- || byte != 0xff
+ if (elf_read_next_u8(lte->plt_data, &offset, &byte) < 0)
+ continue;
+
+
+ if (byte == 0xf3
+ && elf_read_next_u8(lte->plt_data, &offset, &byte) >= 0
+ && byte == 0x0f
+ && elf_read_next_u8(lte->plt_data, &offset, &byte) >= 0
+ && byte == 0x1e
+ && elf_read_next_u8(lte->plt_data, &offset, &byte) >= 0
+ && byte == 0xfa
+ && elf_read_next_u8(lte->plt_data, &offset, &byte) >= 0
+ && byte == 0x68
+ && elf_read_next_u32(lte->plt_data,
+ &offset, &reloc_arg) >= 0)
+ {
+ /* CET */
+ fprintf(stderr, "%d: reloc_arg is %lx\n", i, (long)reloc_arg);
+ *VECT_ELEMENT(&lte->arch.plt_map, unsigned int, reloc_arg) = i;
+ continue;
+ }
+
+ if (byte != 0xff
|| elf_read_next_u8(lte->plt_data, &offset, &byte) < 0
|| (byte != 0xa3 && byte != 0x25))
continue;
@@ -140,7 +169,6 @@ arch_elf_init(struct ltelf *lte, struct
/* Skip immediate argument in the instruction. */
offset += 4;
- uint32_t reloc_arg;
if (elf_read_next_u8(lte->plt_data, &offset, &byte) < 0
|| byte != 0x68
|| elf_read_next_u32(lte->plt_data,

45
ltrace-0.7.91-man.patch Normal file
View File

@ -0,0 +1,45 @@
diff -up ltrace-0.7.91/options.c\~ ltrace-0.7.91/options.c
--- ltrace-0.7.91/options.c~ 2013-10-22 11:54:21.000000000 +0200
+++ ltrace-0.7.91/options.c 2014-01-13 15:38:51.362221740 +0100
@@ -128,6 +128,8 @@ usage_debug(void) {
"\n"
"Debugging options are mixed using bitwise-or.\n"
"Note that the meanings and values are subject to change.\n"
+ "Also note that these values are used inconsistently in ltrace, and the\n"
+ "only debuglevel that you can rely on is -D77 that will show everything.\n"
);
}
diff -up ltrace-0.7.91/ltrace.1\~ ltrace-0.7.91/ltrace.1
--- ltrace-0.7.91/ltrace.1~ 2013-10-23 17:44:13.000000000 +0200
+++ ltrace-0.7.91/ltrace.1 2014-01-13 15:51:24.236730677 +0100
@@ -1,5 +1,5 @@
.\" -*-nroff-*-
-.\" Copyright (c) 2012, 2013 Petr Machata, Red Hat Inc.
+.\" Copyright (c) 2012,2013,2014 Petr Machata, Red Hat Inc.
.\" Copyright (c) 1997-2005 Juan Cespedes <cespedes@debian.org>
.\"
.\" This program is free software; you can redistribute it and/or