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-rw-r--r--linux-user/ppc/cpu_loop.c28
-rw-r--r--linux-user/ppc/elfload.c146
-rw-r--r--linux-user/ppc/target_elf.h62
-rw-r--r--linux-user/ppc/target_ptrace.h26
-rw-r--r--linux-user/ppc/target_syscall.h28
-rwxr-xr-xlinux-user/ppc/vdso-32.sobin3020 -> 3140 bytes
-rwxr-xr-xlinux-user/ppc/vdso-64.sobin3896 -> 4048 bytes
-rwxr-xr-xlinux-user/ppc/vdso-64le.sobin3896 -> 4048 bytes
-rw-r--r--linux-user/ppc/vdso.S2
9 files changed, 250 insertions, 42 deletions
diff --git a/linux-user/ppc/cpu_loop.c b/linux-user/ppc/cpu_loop.c
index 2a0efaf..b0b0cb1 100644
--- a/linux-user/ppc/cpu_loop.c
+++ b/linux-user/ppc/cpu_loop.c
@@ -77,7 +77,7 @@ void cpu_loop(CPUPPCState *env)
cpu_exec_start(cs);
trapnr = cpu_exec(cs);
cpu_exec_end(cs);
- process_queued_cpu_work(cs);
+ qemu_process_cpu_events(cs);
arch_interrupt = true;
switch (trapnr) {
@@ -378,21 +378,31 @@ void cpu_loop(CPUPPCState *env)
}
}
-void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs)
+void init_main_thread(CPUState *cs, struct image_info *info)
{
- int i;
+ CPUArchState *env = cpu_env(cs);
+ abi_ptr entry = info->entry;
+
+ env->gpr[1] = info->start_stack;
+
+#ifdef TARGET_PPC64
+ if (get_ppc64_abi(info) < 2) {
+ uint64_t val;
+ get_user_u64(val, entry + 8);
+ env->gpr[2] = val + info->load_bias;
+ get_user_u64(val, entry);
+ entry = val + info->load_bias;
+ } else {
+ env->gpr[12] = entry; /* r12 set to global entry address */
+ }
-#if defined(TARGET_PPC64)
int flag = (env->insns_flags2 & PPC2_BOOKE206) ? MSR_CM : MSR_SF;
#if defined(TARGET_ABI32)
ppc_store_msr(env, env->msr & ~((target_ulong)1 << flag));
#else
ppc_store_msr(env, env->msr | (target_ulong)1 << flag);
#endif
-#endif
+#endif /* TARGET_PPC64 */
- env->nip = regs->nip;
- for(i = 0; i < 32; i++) {
- env->gpr[i] = regs->gpr[i];
- }
+ env->nip = entry;
}
diff --git a/linux-user/ppc/elfload.c b/linux-user/ppc/elfload.c
new file mode 100644
index 0000000..0d54da9
--- /dev/null
+++ b/linux-user/ppc/elfload.c
@@ -0,0 +1,146 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "qemu/osdep.h"
+#include "qemu.h"
+#include "loader.h"
+#include "target_elf.h"
+
+
+const char *get_elf_cpu_model(uint32_t eflags)
+{
+#ifdef TARGET_PPC64
+ return "POWER9";
+#else
+ return "750";
+#endif
+}
+
+/*
+ * Feature masks for the Aux Vector Hardware Capabilities (AT_HWCAP).
+ * See arch/powerpc/include/asm/cputable.h.
+ */
+enum {
+ QEMU_PPC_FEATURE_32 = 0x80000000,
+ QEMU_PPC_FEATURE_64 = 0x40000000,
+ QEMU_PPC_FEATURE_601_INSTR = 0x20000000,
+ QEMU_PPC_FEATURE_HAS_ALTIVEC = 0x10000000,
+ QEMU_PPC_FEATURE_HAS_FPU = 0x08000000,
+ QEMU_PPC_FEATURE_HAS_MMU = 0x04000000,
+ QEMU_PPC_FEATURE_HAS_4xxMAC = 0x02000000,
+ QEMU_PPC_FEATURE_UNIFIED_CACHE = 0x01000000,
+ QEMU_PPC_FEATURE_HAS_SPE = 0x00800000,
+ QEMU_PPC_FEATURE_HAS_EFP_SINGLE = 0x00400000,
+ QEMU_PPC_FEATURE_HAS_EFP_DOUBLE = 0x00200000,
+ QEMU_PPC_FEATURE_NO_TB = 0x00100000,
+ QEMU_PPC_FEATURE_POWER4 = 0x00080000,
+ QEMU_PPC_FEATURE_POWER5 = 0x00040000,
+ QEMU_PPC_FEATURE_POWER5_PLUS = 0x00020000,
+ QEMU_PPC_FEATURE_CELL = 0x00010000,
+ QEMU_PPC_FEATURE_BOOKE = 0x00008000,
+ QEMU_PPC_FEATURE_SMT = 0x00004000,
+ QEMU_PPC_FEATURE_ICACHE_SNOOP = 0x00002000,
+ QEMU_PPC_FEATURE_ARCH_2_05 = 0x00001000,
+ QEMU_PPC_FEATURE_PA6T = 0x00000800,
+ QEMU_PPC_FEATURE_HAS_DFP = 0x00000400,
+ QEMU_PPC_FEATURE_POWER6_EXT = 0x00000200,
+ QEMU_PPC_FEATURE_ARCH_2_06 = 0x00000100,
+ QEMU_PPC_FEATURE_HAS_VSX = 0x00000080,
+ QEMU_PPC_FEATURE_PSERIES_PERFMON_COMPAT = 0x00000040,
+
+ QEMU_PPC_FEATURE_TRUE_LE = 0x00000002,
+ QEMU_PPC_FEATURE_PPC_LE = 0x00000001,
+
+ /* Feature definitions in AT_HWCAP2. */
+ QEMU_PPC_FEATURE2_ARCH_2_07 = 0x80000000, /* ISA 2.07 */
+ QEMU_PPC_FEATURE2_HAS_HTM = 0x40000000, /* Hardware Transactional Memory */
+ QEMU_PPC_FEATURE2_HAS_DSCR = 0x20000000, /* Data Stream Control Register */
+ QEMU_PPC_FEATURE2_HAS_EBB = 0x10000000, /* Event Base Branching */
+ QEMU_PPC_FEATURE2_HAS_ISEL = 0x08000000, /* Integer Select */
+ QEMU_PPC_FEATURE2_HAS_TAR = 0x04000000, /* Target Address Register */
+ QEMU_PPC_FEATURE2_VEC_CRYPTO = 0x02000000,
+ QEMU_PPC_FEATURE2_HTM_NOSC = 0x01000000,
+ QEMU_PPC_FEATURE2_ARCH_3_00 = 0x00800000, /* ISA 3.00 */
+ QEMU_PPC_FEATURE2_HAS_IEEE128 = 0x00400000, /* VSX IEEE Bin Float 128-bit */
+ QEMU_PPC_FEATURE2_DARN = 0x00200000, /* darn random number insn */
+ QEMU_PPC_FEATURE2_SCV = 0x00100000, /* scv syscall */
+ QEMU_PPC_FEATURE2_HTM_NO_SUSPEND = 0x00080000, /* TM w/o suspended state */
+ QEMU_PPC_FEATURE2_ARCH_3_1 = 0x00040000, /* ISA 3.1 */
+ QEMU_PPC_FEATURE2_MMA = 0x00020000, /* Matrix-Multiply Assist */
+};
+
+abi_ulong get_elf_hwcap(CPUState *cs)
+{
+ PowerPCCPU *cpu = POWERPC_CPU(cs);
+ uint32_t features = 0;
+
+ /*
+ * We don't have to be terribly complete here; the high points are
+ * Altivec/FP/SPE support. Anything else is just a bonus.
+ */
+#define GET_FEATURE(flag, feature) \
+ do { if (cpu->env.insns_flags & flag) { features |= feature; } } while (0)
+#define GET_FEATURE2(flags, feature) \
+ do { \
+ if ((cpu->env.insns_flags2 & flags) == flags) { \
+ features |= feature; \
+ } \
+ } while (0)
+ GET_FEATURE(PPC_64B, QEMU_PPC_FEATURE_64);
+ GET_FEATURE(PPC_FLOAT, QEMU_PPC_FEATURE_HAS_FPU);
+ GET_FEATURE(PPC_ALTIVEC, QEMU_PPC_FEATURE_HAS_ALTIVEC);
+ GET_FEATURE(PPC_SPE, QEMU_PPC_FEATURE_HAS_SPE);
+ GET_FEATURE(PPC_SPE_SINGLE, QEMU_PPC_FEATURE_HAS_EFP_SINGLE);
+ GET_FEATURE(PPC_SPE_DOUBLE, QEMU_PPC_FEATURE_HAS_EFP_DOUBLE);
+ GET_FEATURE(PPC_BOOKE, QEMU_PPC_FEATURE_BOOKE);
+ GET_FEATURE(PPC_405_MAC, QEMU_PPC_FEATURE_HAS_4xxMAC);
+ GET_FEATURE2(PPC2_DFP, QEMU_PPC_FEATURE_HAS_DFP);
+ GET_FEATURE2(PPC2_VSX, QEMU_PPC_FEATURE_HAS_VSX);
+ GET_FEATURE2((PPC2_PERM_ISA206 | PPC2_DIVE_ISA206 | PPC2_ATOMIC_ISA206 |
+ PPC2_FP_CVT_ISA206 | PPC2_FP_TST_ISA206),
+ QEMU_PPC_FEATURE_ARCH_2_06);
+
+#undef GET_FEATURE
+#undef GET_FEATURE2
+
+ return features;
+}
+
+abi_ulong get_elf_hwcap2(CPUState *cs)
+{
+ PowerPCCPU *cpu = POWERPC_CPU(cs);
+ uint32_t features = 0;
+
+#define GET_FEATURE(flag, feature) \
+ do { if (cpu->env.insns_flags & flag) { features |= feature; } } while (0)
+#define GET_FEATURE2(flag, feature) \
+ do { if (cpu->env.insns_flags2 & flag) { features |= feature; } } while (0)
+
+ GET_FEATURE(PPC_ISEL, QEMU_PPC_FEATURE2_HAS_ISEL);
+ GET_FEATURE2(PPC2_BCTAR_ISA207, QEMU_PPC_FEATURE2_HAS_TAR);
+ GET_FEATURE2((PPC2_BCTAR_ISA207 | PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 |
+ PPC2_ISA207S), QEMU_PPC_FEATURE2_ARCH_2_07 |
+ QEMU_PPC_FEATURE2_VEC_CRYPTO);
+ GET_FEATURE2(PPC2_ISA300, QEMU_PPC_FEATURE2_ARCH_3_00 |
+ QEMU_PPC_FEATURE2_DARN | QEMU_PPC_FEATURE2_HAS_IEEE128);
+ GET_FEATURE2(PPC2_ISA310, QEMU_PPC_FEATURE2_ARCH_3_1 |
+ QEMU_PPC_FEATURE2_MMA);
+
+#undef GET_FEATURE
+#undef GET_FEATURE2
+
+ return features;
+}
+
+void elf_core_copy_regs(target_elf_gregset_t *r, const CPUPPCState *env)
+{
+ for (int i = 0; i < ARRAY_SIZE(env->gpr); i++) {
+ r->pt.gpr[i] = tswapal(env->gpr[i]);
+ }
+
+ r->pt.nip = tswapal(env->nip);
+ r->pt.msr = tswapal(env->msr);
+ r->pt.ctr = tswapal(env->ctr);
+ r->pt.link = tswapal(env->lr);
+ r->pt.xer = tswapal(cpu_read_xer(env));
+ r->pt.ccr = tswapal(ppc_get_cr(env));
+}
diff --git a/linux-user/ppc/target_elf.h b/linux-user/ppc/target_elf.h
index 0616618..22854cf 100644
--- a/linux-user/ppc/target_elf.h
+++ b/linux-user/ppc/target_elf.h
@@ -7,12 +7,64 @@
#ifndef PPC_TARGET_ELF_H
#define PPC_TARGET_ELF_H
-static inline const char *cpu_get_model(uint32_t eflags)
-{
+
+#include "target_ptrace.h"
+
+#define ELF_MACHINE PPC_ELF_MACHINE
+
#ifdef TARGET_PPC64
- return "POWER9";
+# define ELF_CLASS ELFCLASS64
+#else
+# define ELF_CLASS ELFCLASS32
+# define EXSTACK_DEFAULT true
+#endif
+
+#define HAVE_ELF_HWCAP 1
+#define HAVE_ELF_HWCAP2 1
+#define HAVE_ELF_CORE_DUMP 1
+
+/*
+ * The size of 48 words is set in arch/powerpc/include/uapi/asm/elf.h.
+ * However PPC_ELF_CORE_COPY_REGS in arch/powerpc/include/asm/elf.h
+ * open-codes a memcpy from struct pt_regs, then zeros the rest.
+ */
+typedef struct target_elf_gregset_t {
+ union {
+ struct target_pt_regs pt;
+ abi_ulong reserved[48];
+ };
+} target_elf_gregset_t;
+
+#ifndef TARGET_PPC64
+# define VDSO_HEADER "vdso-32.c.inc"
+#elif TARGET_BIG_ENDIAN
+# define VDSO_HEADER "vdso-64.c.inc"
#else
- return "750";
+# define VDSO_HEADER "vdso-64le.c.inc"
#endif
-}
+
+/*
+ * The requirements here are:
+ * - keep the final alignment of sp (sp & 0xf)
+ * - make sure the 32-bit value at the first 16 byte aligned position of
+ * AUXV is greater than 16 for glibc compatibility.
+ * AT_IGNOREPPC is used for that.
+ * - for compatibility with glibc ARCH_DLINFO must always be defined on PPC,
+ * even if DLINFO_ARCH_ITEMS goes to zero or is undefined.
+ */
+#define DLINFO_ARCH_ITEMS 5
+#define ARCH_DLINFO \
+ do { \
+ PowerPCCPU *cpu = POWERPC_CPU(thread_cpu); \
+ /* \
+ * Handle glibc compatibility: these magic entries must \
+ * be at the lowest addresses in the final auxv. \
+ */ \
+ NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \
+ NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \
+ NEW_AUX_ENT(AT_DCACHEBSIZE, cpu->env.dcache_line_size); \
+ NEW_AUX_ENT(AT_ICACHEBSIZE, cpu->env.icache_line_size); \
+ NEW_AUX_ENT(AT_UCACHEBSIZE, 0); \
+ } while (0)
+
#endif
diff --git a/linux-user/ppc/target_ptrace.h b/linux-user/ppc/target_ptrace.h
new file mode 100644
index 0000000..df77bfd
--- /dev/null
+++ b/linux-user/ppc/target_ptrace.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef PPC_TARGET_PTRACE_H
+#define PPC_TARGET_PTRACE_H
+
+struct target_pt_regs {
+ abi_ulong gpr[32];
+ abi_ulong nip;
+ abi_ulong msr;
+ abi_ulong orig_gpr3; /* Used for restarting system calls */
+ abi_ulong ctr;
+ abi_ulong link;
+ abi_ulong xer;
+ abi_ulong ccr;
+#if defined(TARGET_PPC64)
+ abi_ulong softe;
+#else
+ abi_ulong mq; /* 601 only (not used at present) */
+#endif
+ abi_ulong trap; /* Reason for being here */
+ abi_ulong dar; /* Fault registers */
+ abi_ulong dsisr;
+ abi_ulong result; /* Result of a system call */
+};
+
+#endif /* PPC_TARGET_PTRACE_H */
diff --git a/linux-user/ppc/target_syscall.h b/linux-user/ppc/target_syscall.h
index 77b36d0..976b4bb 100644
--- a/linux-user/ppc/target_syscall.h
+++ b/linux-user/ppc/target_syscall.h
@@ -20,34 +20,6 @@
#ifndef PPC_TARGET_SYSCALL_H
#define PPC_TARGET_SYSCALL_H
-/* XXX: ABSOLUTELY BUGGY:
- * for now, this is quite just a cut-and-paste from i386 target...
- */
-
-/* default linux values for the selectors */
-#define __USER_DS (1)
-
-struct target_pt_regs {
- abi_ulong gpr[32];
- abi_ulong nip;
- abi_ulong msr;
- abi_ulong orig_gpr3; /* Used for restarting system calls */
- abi_ulong ctr;
- abi_ulong link;
- abi_ulong xer;
- abi_ulong ccr;
-#if defined(TARGET_PPC64)
- abi_ulong softe;
-#else
- abi_ulong mq; /* 601 only (not used at present) */
-#endif
- /* Used on APUS to hold IPL value. */
- abi_ulong trap; /* Reason for being here */
- abi_ulong dar; /* Fault registers */
- abi_ulong dsisr;
- abi_ulong result; /* Result of a system call */
-};
-
/* ioctls */
struct target_revectored_struct {
abi_ulong __map[8]; /* 256 bits */
diff --git a/linux-user/ppc/vdso-32.so b/linux-user/ppc/vdso-32.so
index 0dc55e0..0347605 100755
--- a/linux-user/ppc/vdso-32.so
+++ b/linux-user/ppc/vdso-32.so
Binary files differ
diff --git a/linux-user/ppc/vdso-64.so b/linux-user/ppc/vdso-64.so
index ac1ab25..b89f2a0 100755
--- a/linux-user/ppc/vdso-64.so
+++ b/linux-user/ppc/vdso-64.so
Binary files differ
diff --git a/linux-user/ppc/vdso-64le.so b/linux-user/ppc/vdso-64le.so
index 424abb4..22499d2 100755
--- a/linux-user/ppc/vdso-64le.so
+++ b/linux-user/ppc/vdso-64le.so
Binary files differ
diff --git a/linux-user/ppc/vdso.S b/linux-user/ppc/vdso.S
index 2e79ea9..e9256a2 100644
--- a/linux-user/ppc/vdso.S
+++ b/linux-user/ppc/vdso.S
@@ -220,6 +220,7 @@ endf __kernel_sync_dicache
nop
+sigreturn_region_start:
__kernel_sigtramp_rt:
raw_syscall __NR_rt_sigreturn
endf __kernel_sigtramp_rt
@@ -235,5 +236,6 @@ __kernel_sigtramp32:
raw_syscall __NR_sigreturn
endf __kernel_sigtramp32
#endif
+sigreturn_region_end:
.cfi_endproc
generated by cgit v1.1 at 2025-10-14 21:28:27 +0000