commit 2c29df25b7c2ff006b45afd80ee6dd734ebbd47c
Author: Sergio Durigan Junior <sergiodj@redhat.com>
Date: Sun Sep 11 16:53:09 2016 -0400
Fix false FAIL on gdb.base/stap-probe.exp, due to ICF optimization
GCC 6's ICF optimization pass is making the declaration of 'm1' and
'm2', on gdb.base/stap-probe.c, to be unified. However, this leads to
only one instance of the probe 'two' being created, which causes a
failure on the testsuite (which expects a multi-location breakpoint to
be inserted on the probe).
This patch fixes this failure by declaring a dummy variable on 'm1',
and using it as an argument to m1's version of probe 'two'. Since we
do not care about the contents of the functions nor about the
arguments of each probe 'two', this is OK.
gdb/testsuite/ChangeLog:
2016-09-11 Sergio Durigan Junior <sergiodj@redhat.com>
Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.base/stap-probe.c (m1): New variable 'dummy', necessary to
make m1's definition to be different from m2's. Use 'dummy' as an
argument for probe 'two'.
### a/gdb/testsuite/ChangeLog
### b/gdb/testsuite/ChangeLog
## -1,3 +1,10 @@
+2016-09-11 Sergio Durigan Junior <sergiodj@redhat.com>
+ Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ * gdb.base/stap-probe.c (m1): New variable 'dummy', necessary to
+ make m1's definition to be different from m2's. Use 'dummy' as an
+ argument for probe 'two'.
+
2016-09-10 Jon Beniston <jon@beniston.com>
* lib/mi-support.exp (mi_gdb_target_load): Use target_sim_options
--- a/gdb/testsuite/gdb.base/stap-probe.c
+++ b/gdb/testsuite/gdb.base/stap-probe.c
@@ -53,8 +53,13 @@ struct funcs
static void
m1 (void)
{
+ /* m1 and m2 are equivalent, but because of some compiler
+ optimizations we have to make each of them unique. This is why
+ we have this dummy variable here. */
+ volatile int dummy = 0;
+
if (TEST2)
- STAP_PROBE (test, two);
+ STAP_PROBE1 (test, two, dummy);
}
static void
commit f389f6fef76d7cf8e8beb7061edff2155c284898
Author: Jan Kratochvil <jan.kratochvil@redhat.com>
Date: Wed Oct 5 21:56:46 2016 +0200
testsuite: Fix recent GCC FAIL: gdb.arch/i386-signal.exp
gcc-6.2.1-2.fc24.x86_64
(gdb) backtrace 10^M
(gdb) FAIL: gdb.arch/i386-signal.exp: backtrace 10
(gdb) disas/s
Dump of assembler code for function main:
.../gdb/testsuite/gdb.arch/i386-signal.c:
30 {
0x000000000040057f <+0>: push %rbp
0x0000000000400580 <+1>: mov %rsp,%rbp
31 setup ();
0x0000000000400583 <+4>: callq 0x400590 <setup>
=> 0x0000000000400588 <+9>: mov $0x0,%eax
32 }
0x000000000040058d <+14>: pop %rbp
0x000000000040058e <+15>: retq
End of assembler dump.
The .exp patch is an obvious typo fix I think. The regex was written to
accept "ADDR in main" and I find it OK as checking .debug_line validity is not
the purpose of this testfile.
gcc-4.8.5-11.el7.x86_64 did not put the 'mov $0x0,%eax' instruction there at
all so there was no problem with .debug_line.
gdb/testsuite/ChangeLog
2016-10-05 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.arch/i386-signal.exp (backtrace 10): Fix #2 typo.
### a/gdb/testsuite/ChangeLog
### b/gdb/testsuite/ChangeLog
## -1,3 +1,7 @@
+2016-10-05 Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ * gdb.arch/i386-signal.exp (backtrace 10): Fix #2 typo.
+
2016-10-05 Yao Qi <yao.qi@linaro.org>
* lib/gdb.exp (support_complex_tests): Return zero if
--- a/gdb/testsuite/gdb.arch/i386-signal.exp
+++ b/gdb/testsuite/gdb.arch/i386-signal.exp
@@ -35,6 +35,6 @@ gdb_load ${binfile}
runto func
gdb_test "backtrace 10" \
- "#0 ($hex in )?func.*\r\n#1 <signal handler called>\r\n#2 ($hex in)?main.*"
+ "#0 ($hex in )?func.*\r\n#1 <signal handler called>\r\n#2 ($hex in )?main.*"
gdb_test "finish" "Run till exit from \#0 func.*<signal handler called>"
commit 20c2c024c1e89e402a57e8c3577fb9777709d9a4
Author: Carl E. Love <carll@oc4738070240.ibm.com>
Date: Fri Aug 19 11:06:38 2016 -0700
Fix missing files for ld when test suite not compiled in the source directory
This patch fixes an issues with six test suite expect files that do not
run correctly when the test suite is not built in the source directory. The
issue is these tests are not using the current "standard_testfile" call
but rather using the older set command to initialize the "testfile",
"srcfile" and "binprefix" variables or are missing the set for the
"binprefix" variable.
-----------------------------------------------
gdb/testsuite/ChangeLog
2016-08-19 Carl Love <cel@us.ibm.com>
* gdb.arch/altivec-regs.exp: Use standard_testfile instead of
maintaining separate logic for constructing the output path.
* gdb.arch/powerpc-d128-regs.exp: Likewise.
* gdb.arch/ppc-dfp.exp: Likewise.
* gdb.arch/ppc-fp.exp: Likewise.
* gdb.arch/vsx-regs.exp: Likewise.
* gdb.arch/altivec-abi.exp: Likewise, plus added local variable
binprefix for generating the additional binary files.
### a/gdb/testsuite/ChangeLog
### b/gdb/testsuite/ChangeLog
## -1,3 +1,14 @@
+2016-08-19 Carl Love <cel@us.ibm.com>
+
+ * gdb.arch/altivec-regs.exp: Use standard_testfile instead of
+ maintaining separate logic for constructing the output path.
+ * gdb.arch/powerpc-d128-regs.exp: Likewise.
+ * gdb.arch/ppc-dfp.exp: Likewise.
+ * gdb.arch/ppc-fp.exp: Likewise.
+ * gdb.arch/vsx-regs.exp: Likewise.
+ * gdb.arch/altivec-abi.exp: Likewise, plus added local variable
+ binprefix for generating the additional binary files.
+
2016-08-19 Pedro Alves <palves@redhat.com>
* gdb.trace/mi-trace-frame-collected.exp
--- a/gdb/testsuite/gdb.arch/altivec-abi.exp
+++ b/gdb/testsuite/gdb.arch/altivec-abi.exp
@@ -26,9 +26,7 @@ if {![istarget "powerpc*"] || [skip_altivec_tests]} then {
return
}
-set testfile "altivec-abi"
-set binfile ${objdir}/${subdir}/${testfile}
-set srcfile ${testfile}.c
+standard_testfile
if [get_compiler_info] {
warning "get_compiler failed"
@@ -146,6 +144,8 @@ proc altivec_abi_tests { extra_flags force_abi } {
}
if [test_compiler_info gcc*] {
+ set binprefix ${binfile}
+
with_test_prefix "default ABI, auto" {
altivec_abi_tests "additional_flags=-maltivec" "auto"
}
@@ -156,23 +156,23 @@ if [test_compiler_info gcc*] {
# On 64-bit GNU/Linux with GCC 4.1 and 4.2, -mabi=no-altivec
# was broken, so skip those tests there.
if { ![is_lp64_target] || ![test_compiler_info "gcc-4-\[12\]-*"] } {
- set binfile ${objdir}/${subdir}/${testfile}-ge-ge
+ set binfile ${binprefix}-ge-ge
with_test_prefix "generic ABI, forced" {
altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=no-altivec" "generic"
}
- set binfile ${objdir}/${subdir}/${testfile}-ge-auto
+ set binfile ${binprefix}-ge-auto
with_test_prefix "generic ABI, auto" {
altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=no-altivec" "auto"
}
}
- set binfile ${objdir}/${subdir}/${testfile}-av-av
+ set binfile ${binprefix}-av-av
with_test_prefix "AltiVec ABI, forced" {
altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=altivec" "altivec"
}
- set binfile ${objdir}/${subdir}/${testfile}-av-auto
+ set binfile ${binprefix}-av-auto
with_test_prefix "AltiVec ABI, auto" {
altivec_abi_tests "additional_flags=-maltivec additional_flags=-mabi=altivec" "auto"
}
--- a/gdb/testsuite/gdb.arch/altivec-regs.exp
+++ b/gdb/testsuite/gdb.arch/altivec-regs.exp
@@ -27,9 +27,7 @@ if {![istarget "powerpc*"] || [skip_altivec_tests]} then {
return
}
-set testfile "altivec-regs"
-set binfile ${objdir}/${subdir}/${testfile}
-set srcfile ${testfile}.c
+standard_testfile
set compile_flags {debug nowarnings}
if [get_compiler_info] {
--- a/gdb/testsuite/gdb.arch/powerpc-d128-regs.exp
+++ b/gdb/testsuite/gdb.arch/powerpc-d128-regs.exp
@@ -25,9 +25,7 @@ if ![istarget "powerpc64*-*"] then {
return
}
-set testfile "powerpc-d128-regs"
-set srcfile ${testfile}.c
-set binfile ${objdir}/${subdir}/${testfile}
+standard_testfile
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } {
untested powerpc-d128-regs.exp
--- a/gdb/testsuite/gdb.arch/ppc-dfp.exp
+++ b/gdb/testsuite/gdb.arch/ppc-dfp.exp
@@ -21,9 +21,7 @@ if ![istarget "powerpc*"] then {
return
}
-set testfile "ppc-dfp"
-set binfile ${objdir}/${subdir}/${testfile}
-set srcfile ${testfile}.c
+standard_testfile
if [get_compiler_info] {
warning "get_compiler failed"
--- a/gdb/testsuite/gdb.arch/ppc-fp.exp
+++ b/gdb/testsuite/gdb.arch/ppc-fp.exp
@@ -21,9 +21,7 @@ if ![istarget "powerpc*"] then {
return
}
-set testfile "ppc-fp"
-set binfile ${objdir}/${subdir}/${testfile}
-set srcfile ${testfile}.c
+standard_testfile
if [get_compiler_info] {
warning "get_compiler failed"
--- a/gdb/testsuite/gdb.arch/vsx-regs.exp
+++ b/gdb/testsuite/gdb.arch/vsx-regs.exp
@@ -24,9 +24,7 @@ if {![istarget "powerpc*"] || [skip_vsx_tests]} then {
return
}
-set testfile "vsx-regs"
-set binfile ${objdir}/${subdir}/${testfile}
-set srcfile ${testfile}.c
+standard_testfile
set compile_flags {debug nowarnings quiet}
if [get_compiler_info] {
http://sourceware.org/ml/gdb-patches/2016-10/msg00258.html
Subject: [testsuite obv] Use standard_output_file
From: Jan Kratochvil <jan.kratochvil@redhat.com>
Date: Tue, 11 Oct 2016 16:43:58 +0200
Subject: [PATCH] testsuite: Use standard_output_file
Subject: [PATCH] testsuite: Use standard_output_file
gdb/testsuite/ChangeLog
2016-10-11 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.arch/powerpc-prologue.exp: Use standard_output_file.
* gdb.arch/ppc64-symtab-cordic.exp: Likewise.
* gdb.arch/vsx-regs.exp: Likewise.
---
gdb/testsuite/ChangeLog | 6 ++++++
gdb/testsuite/gdb.arch/powerpc-prologue.exp | 2 +-
gdb/testsuite/gdb.arch/ppc64-symtab-cordic.exp | 4 ++--
gdb/testsuite/gdb.arch/vsx-regs.exp | 2 +-
4 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 9c7df29..b6ba0ec 100644
### a/gdb/testsuite/ChangeLog
### b/gdb/testsuite/ChangeLog
## -1,3 +1,9 @@
+2016-10-11 Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ * gdb.arch/powerpc-prologue.exp: Use standard_output_file
+ * gdb.arch/ppc64-symtab-cordic.exp: Likewise.
+ * gdb.arch/vsx-regs.exp: Likewise.
+
2016-10-07 Yao Qi <yao.qi@linaro.org>
* gdb.xml/tdesc-regs.exp: Set regdir to "arm/".
diff --git a/gdb/testsuite/gdb.arch/powerpc-prologue.exp b/gdb/testsuite/gdb.arch/powerpc-prologue.exp
index 341ae02..0c74d7e 100644
--- a/gdb/testsuite/gdb.arch/powerpc-prologue.exp
+++ b/gdb/testsuite/gdb.arch/powerpc-prologue.exp
@@ -24,7 +24,7 @@ if {[istarget *-*-aix*] || ![istarget "powerpc-*-*"]} then {
set testfile "powerpc-prologue"
set srcfile ${testfile}.c
-set binfile ${objdir}/${subdir}/${testfile}
+set binfile [standard_output_file ${testfile}]
# Don't use "debug", so that we don't have line information for the assembly
# fragments.
diff --git a/gdb/testsuite/gdb.arch/ppc64-symtab-cordic.exp b/gdb/testsuite/gdb.arch/ppc64-symtab-cordic.exp
index c8cb429..3fdc490 100644
--- a/gdb/testsuite/gdb.arch/ppc64-symtab-cordic.exp
+++ b/gdb/testsuite/gdb.arch/ppc64-symtab-cordic.exp
@@ -21,9 +21,9 @@ if {![istarget "powerpc*"] || ![is_lp64_target]} {
standard_testfile
set kobz2file ${srcdir}/${subdir}/cordic.ko.bz2
-set kofile ${objdir}/${subdir}/cordic.ko
+set kofile [standard_output_file cordic.ko]
set kodebugbz2file ${srcdir}/${subdir}/cordic.ko.debug.bz2
-set kodebugfile ${objdir}/${subdir}/cordic.ko.debug
+set kodebugfile [standard_output_file cordic.ko.debug]
if {[catch "system \"bzip2 -dc ${kobz2file} >${kofile}\""] != 0} {
untested "failed bzip2 for ${kobz2file}"
diff --git a/gdb/testsuite/gdb.arch/vsx-regs.exp b/gdb/testsuite/gdb.arch/vsx-regs.exp
index 307f12a..31e58e6 100644
--- a/gdb/testsuite/gdb.arch/vsx-regs.exp
+++ b/gdb/testsuite/gdb.arch/vsx-regs.exp
@@ -152,7 +152,7 @@ for {set i 0} {$i < 32} {incr i 1} {
# later when loading the core file (i.e., different register values for different
# vector register banks).
-set corefile "${objdir}/${subdir}/vsx-core.test"
+set corefile [standard_output_file vsx-core.test]
set core_supported [gdb_gcore_cmd "$corefile" "Save a VSX-enabled corefile"]
# Now run the F32~F63/VR0~VR31 tests.
--
2.7.4
http://sourceware.org/ml/gdb-patches/2016-10/msg00268.html
Subject: [testsuite obv] Fix gdb.arch/powerpc-prologue.c compilation
From: Jan Kratochvil <jan.kratochvil@redhat.com>
Date: Tue, 11 Oct 2016 19:09:05 +0200
Subject: [PATCH] testsuite: Fix gdb.arch/powerpc-prologue.c compilation
Subject: [PATCH] testsuite: Fix gdb.arch/powerpc-prologue.c compilation
gcc-6.2.1
gdb compile failed, gdb/testsuite/gdb.arch/powerpc-prologue.c: In function 'main':
gdb/testsuite/gdb.arch/powerpc-prologue.c:32:3: warning: implicit declaration of function 'optimized_1' [-Wimplicit-function-declaration]
optimized_1 ();
^~~~~~~~~~~
gdb/testsuite/ChangeLog
2016-10-11 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.arch/powerpc-prologue.c (optimized_1): New declaration.
---
gdb/testsuite/ChangeLog | 4 ++++
gdb/testsuite/gdb.arch/powerpc-prologue.c | 1 +
2 files changed, 5 insertions(+)
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index b6ba0ec..b4ccd4a 100644
### a/gdb/testsuite/ChangeLog
### b/gdb/testsuite/ChangeLog
## -1,5 +1,9 @@
2016-10-11 Jan Kratochvil <jan.kratochvil@redhat.com>
+ * gdb.arch/powerpc-prologue.c (optimized_1): New declaration.
+
+2016-10-11 Jan Kratochvil <jan.kratochvil@redhat.com>
+
* gdb.arch/powerpc-prologue.exp: Use standard_output_file
* gdb.arch/ppc64-symtab-cordic.exp: Likewise.
* gdb.arch/vsx-regs.exp: Likewise.
diff --git a/gdb/testsuite/gdb.arch/powerpc-prologue.c b/gdb/testsuite/gdb.arch/powerpc-prologue.c
index 6c10dfc..a1b8065 100644
--- a/gdb/testsuite/gdb.arch/powerpc-prologue.c
+++ b/gdb/testsuite/gdb.arch/powerpc-prologue.c
@@ -24,6 +24,7 @@
#endif
void gdb2029 (void);
+void optimized_1 (void);
int
main (void)
--
2.7.4
http://sourceware.org/ml/gdb-patches/2016-10/msg00613.html
Subject: [testsuite patch] Fix gcc_compiled for gcc 6 & 7
--IS0zKkzwUGydFO0o
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Hi,
OK for check-in?
Jan
--IS0zKkzwUGydFO0o
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline; filename=1
gdb/testsuite/ChangeLog
2016-10-20 Jan Kratochvil <jan.kratochvil@redhat.com>
* lib/gdb.exp (get_compiler_info): Generalize gcc_compile regexp.
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 378eea0..7d9b198 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -3290,12 +3290,8 @@ proc get_compiler_info {{arg ""}} {
}
# Set the legacy symbols.
- set gcc_compiled 0
- if { [regexp "^gcc-1-" "$compiler_info" ] } { set gcc_compiled 1 }
- if { [regexp "^gcc-2-" "$compiler_info" ] } { set gcc_compiled 2 }
- if { [regexp "^gcc-3-" "$compiler_info" ] } { set gcc_compiled 3 }
- if { [regexp "^gcc-4-" "$compiler_info" ] } { set gcc_compiled 4 }
- if { [regexp "^gcc-5-" "$compiler_info" ] } { set gcc_compiled 5 }
+ set gcc_compiled 0
+ regexp "^gcc-(\[0-9\]+)-" "$compiler_info" matchall gcc_compiled
# Log what happened.
verbose -log "get_compiler_info: $compiler_info"
--IS0zKkzwUGydFO0o--
http://sourceware.org/ml/gdb-patches/2017-02/msg00226.html
Subject: [OB PATCH] Fix NULL pointer dereference
This commit fixes a segmentation fault on tab completion when
certain debuginfo is installed:
https://bugzilla.redhat.com/show_bug.cgi?id=1398387
gdb/ChangeLog:
* symtab.c (add_symtab_completions): Prevent NULL pointer
dereference.
---
gdb/ChangeLog | 5 +++++
gdb/symtab.c | 3 +++
2 files changed, 8 insertions(+)
diff --git a/gdb/symtab.c b/gdb/symtab.c
index 356f480..2c141e5 100644
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -5163,6 +5163,9 @@ add_symtab_completions (struct compunit_symtab *cust,
struct block_iterator iter;
int i;
+ if (cust == NULL)
+ return;
+
for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
{
QUIT;
--
1.8.3.1
commit 6e5d74e74756fafe59e8198c4cc462cf7c57e12c
Author: Pedro Alves <palves@redhat.com>
Date: Wed Mar 8 11:41:35 2017 +0000
Fix PR 21218: GDB dumps core when escaping newline in multi-line command
With commit 3b12939dfc2399 ("Replace the sync_execution global with a
new enum prompt_state tristate"), GDB started aborting if you try
splitting an input line with a continuation char (backslash) while in
a multi-line command:
(gdb) commands
Type commands for breakpoint(s) 1, one per line.
End with a line saying just "end".
>print \
(gdb) 1 # note "(gdb)" incorrectly printed here.
>end
readline: readline_callback_read_char() called with no handler!
$
That abort is actually a symptom of an old problem introduced when
gdb_readline_wrapper was rewritten to use asynchronous readline, back
in 2007. Note how the "(gdb)" prompt is printed above in the "(gdb)
1" line. Clearly it shouldn't be there, but it already was before the
commit mentioned above. Fixing that also fixes the readline abort
shown above.
The problem starts when command_line_input passes a NULL prompt to
gdb_readline_wrapper when it finds previous incomplete input due to a
backslash, trying to fetch more input without printing another ">"
secondary prompt. That itself should not be a problem, because
passing NULL to gdb_readline_wrapper has the same meaning as passing a
pointer to empty string, since gdb_readline_wrapper exposes the same
interface as 'readline(char *)'. However, gdb_readline_wrapper passes
the prompt argument directly to display_gdb_prompt, and for the
latter, a NULL prompt argument has a different meaning - it requests
printing the primary prompt.
Before commit 782a7b8ef9c096 (which rewrote gdb_readline_wrapper to
use asynchronous readline), GDB behaved like this:
(gdb) commands
[....]
>print \
1
>end
(gdb)
The above is what this commit restores GDB back to.
New test included.
gdb/ChangeLog:
2017-03-08 Pedro Alves <palves@redhat.com>
PR cli/21218
* top.c (gdb_readline_wrapper): Avoid passing NULL to
display_gdb_prompt.
(command_line_input): Add comment.
gdb/testsuite/ChangeLog:
2017-03-08 Pedro Alves <palves@redhat.com>
Jan Kratochvil <jan.kratochvil@redhat.com>
PR cli/21218
* gdb.base/commands.exp (backslash_in_multi_line_command_test):
New proc.
(top level): Call it.
### a/gdb/ChangeLog
### b/gdb/ChangeLog
## -1,5 +1,12 @@
2017-03-08 Pedro Alves <palves@redhat.com>
+ PR cli/21218
+ * top.c (gdb_readline_wrapper): Avoid passing NULL to
+ display_gdb_prompt.
+ (command_line_input): Add comment.
+
+2017-03-08 Pedro Alves <palves@redhat.com>
+
PR tui/21216
* tui/tui-file.c (tui_file::write): New.
* tui/tui-file.h (tui_file): Override "write".
### a/gdb/testsuite/ChangeLog
### b/gdb/testsuite/ChangeLog
## -1,4 +1,12 @@
2017-03-08 Pedro Alves <palves@redhat.com>
+ Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ PR cli/21218
+ * gdb.base/commands.exp (backslash_in_multi_line_command_test):
+ New proc.
+ (top level): Call it.
+
+2017-03-08 Pedro Alves <palves@redhat.com>
PR tui/21216
* gdb.tui/tui-nl-filtered-output.exp: New file.
--- a/gdb/testsuite/gdb.base/commands.exp
+++ b/gdb/testsuite/gdb.base/commands.exp
@@ -759,6 +759,34 @@ proc redefine_backtrace_test {} {
"execute bt command in redefine_backtrace_test"
}
+# Test an input line split with a continuation character (backslash)
+# while entering a multi-line command (in a secondary prompt).
+
+proc backslash_in_multi_line_command_test {} {
+ gdb_breakpoint "main"
+
+ gdb_test_multiple "commands" "commands" {
+ -re "End with a line saying just \"end\"\\.\r\n>$" {
+ pass "commands"
+ }
+ }
+
+ set test "input line split with backslash"
+ send_gdb "print \\\nargc\n"
+ gdb_test_multiple "" $test {
+ -re "^print \\\\\r\nargc\r\n>$" {
+ pass $test
+ }
+ }
+
+ gdb_test_no_output "end"
+
+ # Input any command, just to be sure the readline state is sane.
+ # In PR 21218, this would trigger the infamous:
+ # readline: readline_callback_read_char() called with no handler!
+ gdb_test "print 1" "" "run command"
+}
+
gdbvar_simple_if_test
gdbvar_simple_while_test
gdbvar_complex_if_while_test
@@ -1027,5 +1055,6 @@ recursive_source_test
if_commands_test
error_clears_commands_left
redefine_hook_test
+backslash_in_multi_line_command_test
# This one should come last, as it redefines "backtrace".
redefine_backtrace_test
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -1030,8 +1030,11 @@ gdb_readline_wrapper (const char *prompt)
if (cleanup->target_is_async_orig)
target_async (0);
- /* Display our prompt and prevent double prompt display. */
- display_gdb_prompt (prompt);
+ /* Display our prompt and prevent double prompt display. Don't pass
+ down a NULL prompt, since that has special meaning for
+ display_gdb_prompt -- it indicates a request to print the primary
+ prompt, while we want a secondary prompt here. */
+ display_gdb_prompt (prompt != NULL ? prompt : "");
if (ui->command_editing)
rl_already_prompted = 1;
@@ -1307,6 +1310,9 @@ command_line_input (const char *prompt_arg, int repeat, char *annotation_suffix)
if (cmd != NULL)
break;
+ /* Got partial input. I.e., got a line that ends with a
+ continuation character (backslash). Suppress printing the
+ prompt again. */
prompt = NULL;
}