diff options
Diffstat (limited to 'linux-user/arm')
-rw-r--r-- | linux-user/arm/Makefile.vdso | 11 | ||||
-rw-r--r-- | linux-user/arm/cpu_loop.c | 50 | ||||
-rw-r--r-- | linux-user/arm/meson.build | 13 | ||||
-rw-r--r-- | linux-user/arm/nwfpe/fpa11.c | 23 | ||||
-rw-r--r-- | linux-user/arm/syscall.tbl | 25 | ||||
-rw-r--r-- | linux-user/arm/syscallhdr.sh | 2 | ||||
-rw-r--r-- | linux-user/arm/target_signal.h | 2 | ||||
-rwxr-xr-x | linux-user/arm/vdso-be32.so | bin | 0 -> 2648 bytes | |||
-rwxr-xr-x | linux-user/arm/vdso-be8.so (renamed from linux-user/arm/vdso-be.so) | bin | 2648 -> 2648 bytes | |||
-rwxr-xr-x | linux-user/arm/vdso-le.so | bin | 2648 -> 2648 bytes |
10 files changed, 73 insertions, 53 deletions
diff --git a/linux-user/arm/Makefile.vdso b/linux-user/arm/Makefile.vdso index 2d098a5..ede489e 100644 --- a/linux-user/arm/Makefile.vdso +++ b/linux-user/arm/Makefile.vdso @@ -3,15 +3,18 @@ include $(BUILD_DIR)/tests/tcg/arm-linux-user/config-target.mak SUBDIR = $(SRC_PATH)/linux-user/arm VPATH += $(SUBDIR) -all: $(SUBDIR)/vdso-be.so $(SUBDIR)/vdso-le.so +all: $(SUBDIR)/vdso-be8.so $(SUBDIR)/vdso-be32.so $(SUBDIR)/vdso-le.so # Adding -use-blx disables unneeded interworking without actually using blx. -LDFLAGS = -nostdlib -shared -Wl,-use-blx \ +LDFLAGS = -nostdlib -shared -Wl,-use-blx -Wl,-z,max-page-size=4096 \ -Wl,-h,linux-vdso.so.1 -Wl,--build-id=sha1 \ -Wl,--hash-style=both -Wl,-T,$(SUBDIR)/vdso.ld -$(SUBDIR)/vdso-be.so: vdso.S vdso.ld vdso-asmoffset.h - $(CC) -o $@ $(LDFLAGS) -mbig-endian $< +$(SUBDIR)/vdso-be8.so: vdso.S vdso.ld vdso-asmoffset.h + $(CC) -o $@ $(LDFLAGS) -mbig-endian -mbe8 $< + +$(SUBDIR)/vdso-be32.so: vdso.S vdso.ld vdso-asmoffset.h + $(CC) -o $@ $(LDFLAGS) -mbig-endian -mbe32 $< $(SUBDIR)/vdso-le.so: vdso.S vdso.ld vdso-asmoffset.h $(CC) -o $@ $(LDFLAGS) -mlittle-endian $< diff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c index ec66586..33f6395 100644 --- a/linux-user/arm/cpu_loop.c +++ b/linux-user/arm/cpu_loop.c @@ -21,10 +21,12 @@ #include "qemu.h" #include "user-internals.h" #include "elf.h" -#include "cpu_loop-common.h" +#include "user/cpu_loop.h" #include "signal-common.h" #include "semihosting/common-semi.h" #include "exec/page-protection.h" +#include "exec/mmap-lock.h" +#include "user/page-protection.h" #include "target/arm/syndrome.h" #define get_user_code_u32(x, gaddr, env) \ @@ -35,45 +37,10 @@ __r; \ }) -#define get_user_code_u16(x, gaddr, env) \ - ({ abi_long __r = get_user_u16((x), (gaddr)); \ - if (!__r && bswap_code(arm_sctlr_b(env))) { \ - (x) = bswap16(x); \ - } \ - __r; \ - }) - -#define get_user_data_u32(x, gaddr, env) \ - ({ abi_long __r = get_user_u32((x), (gaddr)); \ - if (!__r && arm_cpu_bswap_data(env)) { \ - (x) = bswap32(x); \ - } \ - __r; \ - }) - -#define get_user_data_u16(x, gaddr, env) \ - ({ abi_long __r = get_user_u16((x), (gaddr)); \ - if (!__r && arm_cpu_bswap_data(env)) { \ - (x) = bswap16(x); \ - } \ - __r; \ - }) - -#define put_user_data_u32(x, gaddr, env) \ - ({ typeof(x) __x = (x); \ - if (arm_cpu_bswap_data(env)) { \ - __x = bswap32(__x); \ - } \ - put_user_u32(__x, (gaddr)); \ - }) - -#define put_user_data_u16(x, gaddr, env) \ - ({ typeof(x) __x = (x); \ - if (arm_cpu_bswap_data(env)) { \ - __x = bswap16(__x); \ - } \ - put_user_u16(__x, (gaddr)); \ - }) +/* + * Note that if we need to do data accesses here, they should do a + * bswap if arm_cpu_bswap_data() returns true. + */ /* * Similar to code in accel/tcg/user-exec.c, but outside the execution loop. @@ -396,6 +363,7 @@ void cpu_loop(CPUARMState *env) switch (n) { case ARM_NR_cacheflush: /* nop */ + env->regs[0] = 0; break; case ARM_NR_set_tls: cpu_set_tls(env, env->regs[0]); @@ -512,7 +480,7 @@ void cpu_loop(CPUARMState *env) } } -void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs) +void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs) { CPUState *cpu = env_cpu(env); TaskState *ts = get_task_state(cpu); diff --git a/linux-user/arm/meson.build b/linux-user/arm/meson.build index c4bb9af..348ffb8 100644 --- a/linux-user/arm/meson.build +++ b/linux-user/arm/meson.build @@ -10,10 +10,17 @@ syscall_nr_generators += { # is always true as far as source_set.apply() is concerned. Always build # both header files and include the right one via #if. -vdso_be_inc = gen_vdso.process('vdso-be.so', - extra_args: ['-s', 'sigreturn_codes']) +vdso_be8_inc = gen_vdso.process('vdso-be8.so', + extra_args: ['-s', 'sigreturn_codes', + '-p', 'vdso_be8']) + +vdso_be32_inc = gen_vdso.process('vdso-be32.so', + extra_args: ['-s', 'sigreturn_codes', + '-p', 'vdso_be32']) vdso_le_inc = gen_vdso.process('vdso-le.so', extra_args: ['-s', 'sigreturn_codes']) -linux_user_ss.add(when: 'TARGET_ARM', if_true: [vdso_be_inc, vdso_le_inc]) +linux_user_ss.add(when: 'TARGET_ARM', if_true: [ + vdso_be8_inc, vdso_be32_inc, vdso_le_inc +]) diff --git a/linux-user/arm/nwfpe/fpa11.c b/linux-user/arm/nwfpe/fpa11.c index 9a93610..0f1afbd 100644 --- a/linux-user/arm/nwfpe/fpa11.c +++ b/linux-user/arm/nwfpe/fpa11.c @@ -51,6 +51,29 @@ void resetFPA11(void) #ifdef MAINTAIN_FPCR fpa11->fpcr = MASK_RESET; #endif + + /* + * Real FPA11 hardware does not handle NaNs, but always takes an + * exception for them to be software-emulated (ARM7500FE datasheet + * section 10.4). There is no documented architectural requirement + * for NaN propagation rules and it will depend on how the OS + * level software emulation opted to do it. We here use prop_s_ab + * which matches the later VFP hardware choice and how QEMU's + * fpa11 emulation has worked in the past. The real Linux kernel + * does something slightly different: arch/arm/nwfpe/softfloat-specialize + * propagateFloat64NaN() has the curious behaviour that it prefers + * the QNaN over the SNaN, but if both are QNaN it picks A and + * if both are SNaN it picks B. In theory we could add this as + * a NaN propagation rule, but in practice FPA11 emulation is so + * close to totally dead that it's not worth trying to match it at + * this late date. + */ + set_float_2nan_prop_rule(float_2nan_prop_s_ab, &fpa11->fp_status); + /* + * Use the same default NaN value as Arm VFP. This doesn't match + * the Linux kernel's nwfpe emulation, which uses an all-1s value. + */ + set_float_default_nan_pattern(0b01000000, &fpa11->fp_status); } void SetRoundingMode(const unsigned int opcode) diff --git a/linux-user/arm/syscall.tbl b/linux-user/arm/syscall.tbl index 28e03b5..23c9820 100644 --- a/linux-user/arm/syscall.tbl +++ b/linux-user/arm/syscall.tbl @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note # # Linux system call numbers and entry vectors # @@ -147,7 +148,7 @@ 131 common quotactl sys_quotactl 132 common getpgid sys_getpgid 133 common fchdir sys_fchdir -134 common bdflush sys_bdflush +134 common bdflush sys_ni_syscall 135 common sysfs sys_sysfs 136 common personality sys_personality # 137 was sys_afs_syscall @@ -263,10 +264,10 @@ 246 common io_submit sys_io_submit 247 common io_cancel sys_io_cancel 248 common exit_group sys_exit_group -249 common lookup_dcookie sys_lookup_dcookie +249 common lookup_dcookie sys_ni_syscall 250 common epoll_create sys_epoll_create 251 common epoll_ctl sys_epoll_ctl sys_oabi_epoll_ctl -252 common epoll_wait sys_epoll_wait sys_oabi_epoll_wait +252 common epoll_wait sys_epoll_wait 253 common remap_file_pages sys_remap_file_pages # 254 for set_thread_area # 255 for get_thread_area @@ -456,7 +457,23 @@ 440 common process_madvise sys_process_madvise 441 common epoll_pwait2 sys_epoll_pwait2 442 common mount_setattr sys_mount_setattr -# 443 reserved for quotactl_path +443 common quotactl_fd sys_quotactl_fd 444 common landlock_create_ruleset sys_landlock_create_ruleset 445 common landlock_add_rule sys_landlock_add_rule 446 common landlock_restrict_self sys_landlock_restrict_self +# 447 reserved for memfd_secret +448 common process_mrelease sys_process_mrelease +449 common futex_waitv sys_futex_waitv +450 common set_mempolicy_home_node sys_set_mempolicy_home_node +451 common cachestat sys_cachestat +452 common fchmodat2 sys_fchmodat2 +453 common map_shadow_stack sys_map_shadow_stack +454 common futex_wake sys_futex_wake +455 common futex_wait sys_futex_wait +456 common futex_requeue sys_futex_requeue +457 common statmount sys_statmount +458 common listmount sys_listmount +459 common lsm_get_self_attr sys_lsm_get_self_attr +460 common lsm_set_self_attr sys_lsm_set_self_attr +461 common lsm_list_modules sys_lsm_list_modules +462 common mseal sys_mseal diff --git a/linux-user/arm/syscallhdr.sh b/linux-user/arm/syscallhdr.sh index 4c952b2..692fd6a 100644 --- a/linux-user/arm/syscallhdr.sh +++ b/linux-user/arm/syscallhdr.sh @@ -1,5 +1,5 @@ #!/bin/sh -# SPDX-License-Identifier: GPL-2.0 +# SPDX-License-Identifier: GPL-2.0-only in="$1" out="$2" diff --git a/linux-user/arm/target_signal.h b/linux-user/arm/target_signal.h index 0e6351d..ff1810b 100644 --- a/linux-user/arm/target_signal.h +++ b/linux-user/arm/target_signal.h @@ -3,6 +3,8 @@ #include "../generic/signal.h" +#define TARGET_SA_RESTORER 0x04000000 + #define TARGET_ARCH_HAS_SETUP_FRAME #define TARGET_ARCH_HAS_SIGTRAMP_PAGE 1 diff --git a/linux-user/arm/vdso-be32.so b/linux-user/arm/vdso-be32.so Binary files differnew file mode 100755 index 0000000..b896d3d --- /dev/null +++ b/linux-user/arm/vdso-be32.so diff --git a/linux-user/arm/vdso-be.so b/linux-user/arm/vdso-be8.so Binary files differindex 69cafbb..784b7bd 100755 --- a/linux-user/arm/vdso-be.so +++ b/linux-user/arm/vdso-be8.so diff --git a/linux-user/arm/vdso-le.so b/linux-user/arm/vdso-le.so Binary files differindex ad05a12..38d3d51 100755 --- a/linux-user/arm/vdso-le.so +++ b/linux-user/arm/vdso-le.so |