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cbc30d36ac
The if statement in case gdb_sys_ioctl in function
record_linux_system_call in file gdb/linux-record.c is as follows:
if (tmpulongest == tdep->ioctl_FIOCLEX
|| tmpulongest == tdep->ioctl_FIONCLEX
....
|| tmpulongest == tdep->ioctl_TCSETSW
...
}
The PowerPC ioctl value for ioctl_TCSETW is 0x802c7415. The variable
ioctl_TCSETW is defined in gdb/linux-record.h as an int. The TCSETW value
has the MSB set to one so it is a negative integer. The comparison of the
unsigned long value tmpulongest to a negative integer value for
ioctl_TCSETSW fails.
This patch changes the declarations for the ioctl_* values in struct
linux_record_tdep to unsigned long to fix the comparisons between
tmpulongest and the tdep->ioctl_* values.
An additional test gdb.reverse/test_ioctl_TCSETSW.exp is added to verify
the gdb record_linux_system_call() if statement for the ioctl TCSETSW
succeeds.
This patch has been tested on Power 10 and Intel with no test failures.
39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2012-2022 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <sys/ioctl.h>
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#include <termios.h>
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#include <stdio.h>
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/* The purpose of this test is to verify gdb record_linux_system_call()
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recognizes the call for ioctl TCSETSW. */
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int
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main(void)
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{
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struct termios term;
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int result;
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int fd = 0;
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/* The test just needs to generate an ioctl call for TCSETSW to see if gdb
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record detected it or not. Success or failure of the ioctl call is
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irrelevant. */
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result = tcsetattr(fd, TCSADRAIN, &term); /* TCSETSW call */
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result = 0; /* TCSETSW called */
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}
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