qemu/linux-user/hppa, branch masterQEMU development treehttps://git.zx2c4.com/qemu/atom/linux-user/hppa?h=master2024-05-15T08:03:44Zlinux-user/hppa: Force all code addresses to PRIV_USER2024-05-15T08:03:44ZRichard Hendersonrichard.henderson@linaro.org2024-03-27T20:54:06Zurn:sha1:3c13b0ffe76057e93e007bedbad3cc556146e3ed
The kernel does this along the return path to user mode.
Reviewed-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
linux-user: Move tswap_siginfo out of target code2024-03-13T11:43:52ZGustavo Romerogustavo.romero@linaro.org2024-03-09T03:08:58Zurn:sha1:4d6d8a05a0a6d102ca94e59a43804d65309921e3
Move tswap_siginfo from target code to handle_pending_signal. This will
allow some cleanups and having the siginfo ready to be used in gdbstub.
Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240309030901.1726211-3-gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
{linux,bsd}-user: Introduce get_task_state()2024-03-06T12:35:19ZIlya Leoshkevichiii@linux.ibm.com2024-03-05T12:09:39Zurn:sha1:e4e5cb4a54403558defb4669a8c64cbd67713e1e
A CPU's TaskState is stored in the CPUState's void *opaque field,
accessing which is somewhat awkward due to having to use a cast.
Introduce a wrapper and use it everywhere.
Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240219141628.246823-3-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-4-alex.bennee@linaro.org>
linux-user/hppa: Drop EXCP_DUMP from handled exceptions2023-11-07T02:49:34ZRichard Hendersonrichard.henderson@linaro.org2023-10-20T20:07:21Zurn:sha1:54111124fb9097635ec784131ceec26798e2ba77
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
linux-user/hppa: Fixes for TARGET_ABI322023-11-07T02:49:34ZRichard Hendersonrichard.henderson@linaro.org2023-10-17T21:09:58Zurn:sha1:0c01f9ba2df42cef26596f5fa0ff5e741fb3c37f
Avoid target_ulong and use abi_* types.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target/hppa: Implement hppa_cpu_class_by_name2023-11-07T02:49:33ZRichard Hendersonrichard.henderson@linaro.org2023-09-18T01:42:27Zurn:sha1:ca4c2008f53cd08dd82789384aeba87754d15152
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
linux-user/hppa: Add vdso2023-10-30T20:41:55ZRichard Hendersonrichard.henderson@linaro.org2021-06-18T19:01:52Zurn:sha1:c7bc2a8fb14650264ada7012af59d87207da590f
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
linux-user/hppa: Fix struct target_sigcontext layout2023-10-04T18:03:54ZRichard Hendersonrichard.henderson@linaro.org2023-09-30T20:45:54Zurn:sha1:33bc4fa78b06fc4e5fe22e5576811a97707e0cc6
Use abi_ullong not uint64_t so that the alignment of the field
and therefore the layout of the struct is correct.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
linux-user/hppa: lock both words of function descriptor2023-09-19T19:12:18ZMikulas Patockampatocka@redhat.com2023-09-16T16:32:45Zurn:sha1:5b1270ef1477bb7f240c3bfe2cd8b0fe4721fd51
The code in setup_rt_frame reads two words at haddr, but locks only one.
This patch fixes it to lock both.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Helge Deller <deller@gmx.de>
Cc: qemu-stable@nongnu.org
Signed-off-by: Helge Deller <deller@gmx.de>
linux-user/hppa: clear the PSW 'N' bit when delivering signals2023-09-19T19:12:18ZMikulas Patockampatocka@redhat.com2023-09-16T13:49:42Zurn:sha1:2529497cb6b298e732e8dbe5212da7925240b4f4
qemu-hppa may crash when delivering a signal. It can be demonstrated with
this program. Compile the program with "hppa-linux-gnu-gcc -O2 signal.c"
and run it with "qemu-hppa -one-insn-per-tb a.out". It reports that the
address of the flag is 0xb4 and it crashes when attempting to touch it.
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <signal.h>
sig_atomic_t flag;
void sig(int n)
{
printf("&flag: %p\n", &flag);
flag = 1;
}
int main(void)
{
struct sigaction sa;
struct itimerval it;
sa.sa_handler = sig;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
if (sigaction(SIGALRM, &sa, NULL)) perror("sigaction"), exit(1);
it.it_interval.tv_sec = 0;
it.it_interval.tv_usec = 100;
it.it_value.tv_sec = it.it_interval.tv_sec;
it.it_value.tv_usec = it.it_interval.tv_usec;
if (setitimer(ITIMER_REAL, &it, NULL)) perror("setitimer"), exit(1);
while (1) {
}
}
The reason for the crash is that the signal handling routine doesn't clear
the 'N' flag in the PSW. If the signal interrupts a thread when the 'N'
flag is set, the flag remains set at the beginning of the signal handler
and the first instruction of the signal handler is skipped.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Helge Deller <deller@gmx.de>
Cc: qemu-stable@nongnu.org
Signed-off-by: Helge Deller <deller@gmx.de>