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linux-user pull request 20220726 

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Merge tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu into staging

linux-user pull request 20220726

# gpg: Signature made Tue 26 Jul 2022 10:44:29 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu:
  linux-user: Use target abi_int type for pipefd[1] in pipe()
  linux-user: Unconditionally use pipe2() syscall
  linux-user/hppa: Fix segfaults on page zero

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2022-07-26 13:29:26 +01:00
parent 0d0275c31f 6f200f5186
commit d1c912b816
3 changed files with 5 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
linux-user/hppa/cpu_loop.c
View File

@ -143,6 +143,9 @@ void cpu_loop(CPUHPPAState *env)
env->iaoq_f = env->gr[31];
env->iaoq_b = env->gr[31] + 4;
break;
case EXCP_IMP:
force_sig_fault(TARGET_SIGSEGV, TARGET_SEGV_MAPERR, env->iaoq_f);
break;
case EXCP_ILL:
force_sig_fault(TARGET_SIGILL, TARGET_ILL_ILLOPN, env->iaoq_f);
break;

13
linux-user/syscall.c
View File

@ -1586,21 +1586,12 @@ static abi_long do_ppoll(abi_long arg1, abi_long arg2, abi_long arg3,
}
#endif
static abi_long do_pipe2(int host_pipe[], int flags)
{
#ifdef CONFIG_PIPE2
return pipe2(host_pipe, flags);
#else
return -ENOSYS;
#endif
}
static abi_long do_pipe(CPUArchState *cpu_env, abi_ulong pipedes,
int flags, int is_pipe2)
{
int host_pipe[2];
abi_long ret;
ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
ret = pipe2(host_pipe, flags);
if (is_error(ret))
return get_errno(ret);
@ -1624,7 +1615,7 @@ static abi_long do_pipe(CPUArchState *cpu_env, abi_ulong pipedes,
}
if (put_user_s32(host_pipe[0], pipedes)
|| put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
|| put_user_s32(host_pipe[1], pipedes + sizeof(abi_int)))
return -TARGET_EFAULT;
return get_errno(ret);
}

9
meson.build
View File

@ -2026,15 +2026,6 @@ config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
#else
int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
#endif'''))
config_host_data.set('CONFIG_PIPE2', cc.links(gnu_source_prefix + '''
#include <unistd.h>
#include <fcntl.h>
int main(void)
{
int pipefd[2];
return pipe2(pipefd, O_CLOEXEC);
}'''))
config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
#include <sys/mman.h>
#include <stddef.h>