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use qemu_memalign for all cpu structs

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Some structs, specically CPUARMState is 16-bytes aligned.

This causes segment fault because gcc tends to vectorize

the assignment of the struct with infamous movaps tricks.

Without this patch, we fail on manylinux with 2.17 glibc

in release mode in i686.

qemu_memalign will ensure the alignment across platforms.
This commit is contained in:
mio
2024-10-17 13:34:31 +08:00
parent e8ca3cbea5
commit ffeddd7579
11 changed files with 22 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
qemu/target/arm/cpu.c
View File

@@ -2102,10 +2102,12 @@ ARMCPU *cpu_arm_init(struct uc_struct *uc)
CPUClass *cc;
CPUARMState *env;
cpu = calloc(1, sizeof(*cpu));
// cpu->env is 16 bytes aligned
cpu = qemu_memalign(16, sizeof(*cpu));
if (cpu == NULL) {
return NULL;
}
memset((void*)cpu, 0, sizeof(*cpu));
#if !defined(TARGET_AARCH64)
if (uc->mode & UC_MODE_MCLASS) {

4
qemu/target/arm/cpu64.c
View File

@@ -325,10 +325,12 @@ ARMCPU *cpu_aarch64_init(struct uc_struct *uc)
CPUClass *cc;
CPUARMState *env;
cpu = calloc(1, sizeof(*cpu));
// cpu->env is 16 bytes alignment
cpu = qemu_memalign(16, sizeof(*cpu));
if (cpu == NULL) {
return NULL;
}
memset((void*)cpu, 0, sizeof(*cpu));
if (uc->cpu_model == INT_MAX) {
uc->cpu_model = UC_CPU_ARM64_A72;

3
qemu/target/i386/cpu.c
View File

@@ -5076,10 +5076,11 @@ X86CPU *cpu_x86_init(struct uc_struct *uc)
CPUClass *cc;
X86CPUClass *xcc;
cpu = calloc(1, sizeof(*cpu));
cpu = qemu_memalign(8, sizeof(*cpu));
if (cpu == NULL) {
return NULL;
}
memset((void*)cpu, 0, sizeof(*cpu));
if (uc->cpu_model == INT_MAX) {
#ifdef TARGET_X86_64

3
qemu/target/m68k/cpu.c
View File

@@ -265,10 +265,11 @@ M68kCPU *cpu_m68k_init(struct uc_struct *uc)
CPUState *cs;
CPUClass *cc;
cpu = calloc(1, sizeof(*cpu));
cpu = qemu_memalign(8, sizeof(*cpu));
if (cpu == NULL) {
return NULL;
}
memset((void*)cpu, 0, sizeof(*cpu));
if (uc->cpu_model == INT_MAX) {
uc->cpu_model = UC_CPU_M68K_CFV4E; // cfv4e

3
qemu/target/mips/cpu.c
View File

@@ -157,10 +157,11 @@ MIPSCPU *cpu_mips_init(struct uc_struct *uc)
CPUClass *cc;
CPUMIPSState *env;
cpu = calloc(1, sizeof(*cpu));
cpu = qemu_memalign(8, sizeof(*cpu));
if (cpu == NULL) {
return NULL;
}
memset((void*)cpu, 0, sizeof(*cpu));
#ifdef TARGET_MIPS64
if (uc->cpu_model == INT_MAX) {

2
qemu/target/ppc/translate_init.inc.c
View File

@@ -11016,7 +11016,7 @@ PowerPCCPU *cpu_ppc_init(struct uc_struct *uc)
CPUClass *cc;
PowerPCCPUClass *pcc;
cpu = malloc(sizeof(*cpu));
cpu = qemu_memalign(8, sizeof(*cpu));
if (cpu == NULL) {
return NULL;
}

3
qemu/target/riscv/cpu.c
View File

@@ -335,10 +335,11 @@ RISCVCPU *cpu_riscv_init(struct uc_struct *uc)
CPUState *cs;
CPUClass *cc;
cpu = calloc(1, sizeof(*cpu));
cpu = qemu_memalign(8, sizeof(*cpu));
if (cpu == NULL) {
return NULL;
}
memset((void*)cpu, 0, sizeof(*cpu));
#ifdef TARGET_RISCV32
if (uc->cpu_model == INT_MAX) {

3
qemu/target/s390x/cpu.c
View File

@@ -245,10 +245,11 @@ S390CPU *cpu_s390_init(struct uc_struct *uc, const char *cpu_model)
CPUClass *cc;
// int i;
cpu = calloc(1, sizeof(*cpu));
cpu = qemu_memalign(8, sizeof(*cpu));
if (cpu == NULL) {
return NULL;
}
memset((void*)cpu, 0, sizeof(*cpu));
if (uc->cpu_model == INT_MAX) {
uc->cpu_model = UC_CPU_S390X_QEMU; // qemu-s390x-cpu

4
qemu/target/sparc/cpu.c
View File

@@ -517,11 +517,11 @@ SPARCCPU *cpu_sparc_init(struct uc_struct *uc)
CPUClass *cc;
SPARCCPUClass *scc;
cpu = malloc(sizeof(*cpu));
cpu = qemu_memalign(8, sizeof(*cpu));
if (cpu == NULL) {
return NULL;
}
memset(cpu, 0, sizeof(*cpu));
memset((void*)cpu, 0, sizeof(*cpu));
if (uc->cpu_model == INT_MAX) {
#ifdef TARGET_SPARC64

3
qemu/target/tricore/cpu.c
View File

@@ -165,10 +165,11 @@ TriCoreCPU *cpu_tricore_init(struct uc_struct *uc)
CPUState *cs;
CPUClass *cc;
cpu = calloc(1, sizeof(*cpu));
cpu = qemu_memalign(8, sizeof(*cpu));
if (cpu == NULL) {
return NULL;
}
memset((void*)cpu, 0, sizeof(*cpu));
if (uc->cpu_model == INT_MAX) {
uc->cpu_model = 2; // tc27x