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-rw-r--r--tools/include/linux/hash.h5
-rw-r--r--tools/include/nolibc/nolibc.h86
-rw-r--r--tools/include/uapi/drm/drm.h18
-rw-r--r--tools/include/uapi/linux/kvm.h3
-rw-r--r--tools/include/uapi/linux/perf_event.h5
5 files changed, 86 insertions, 31 deletions
diff --git a/tools/include/linux/hash.h b/tools/include/linux/hash.h
index ad6fa21d977b..38edaa08f862 100644
--- a/tools/include/linux/hash.h
+++ b/tools/include/linux/hash.h
@@ -62,10 +62,7 @@ static inline u32 __hash_32_generic(u32 val)
return val * GOLDEN_RATIO_32;
}
-#ifndef HAVE_ARCH_HASH_32
-#define hash_32 hash_32_generic
-#endif
-static inline u32 hash_32_generic(u32 val, unsigned int bits)
+static inline u32 hash_32(u32 val, unsigned int bits)
{
/* High bits are more random, so use them. */
return __hash_32(val) >> (32 - bits);
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 3430667b0d24..c1c285fe494a 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -265,12 +265,17 @@ struct stat {
* - arguments are in rdi, rsi, rdx, r10, r8, r9 respectively
* - the system call is performed by calling the syscall instruction
* - syscall return comes in rax
- * - rcx and r8..r11 may be clobbered, others are preserved.
+ * - rcx and r11 are clobbered, others are preserved.
* - the arguments are cast to long and assigned into the target registers
* which are then simply passed as registers to the asm code, so that we
* don't have to experience issues with register constraints.
* - the syscall number is always specified last in order to allow to force
* some registers before (gcc refuses a %-register at the last position).
+ * - see also x86-64 ABI section A.2 AMD64 Linux Kernel Conventions, A.2.1
+ * Calling Conventions.
+ *
+ * Link x86-64 ABI: https://gitlab.com/x86-psABIs/x86-64-ABI/-/wikis/x86-64-psABI
+ *
*/
#define my_syscall0(num) \
@@ -280,9 +285,9 @@ struct stat {
\
asm volatile ( \
"syscall\n" \
- : "=a" (_ret) \
+ : "=a"(_ret) \
: "0"(_num) \
- : "rcx", "r8", "r9", "r10", "r11", "memory", "cc" \
+ : "rcx", "r11", "memory", "cc" \
); \
_ret; \
})
@@ -295,10 +300,10 @@ struct stat {
\
asm volatile ( \
"syscall\n" \
- : "=a" (_ret) \
+ : "=a"(_ret) \
: "r"(_arg1), \
"0"(_num) \
- : "rcx", "r8", "r9", "r10", "r11", "memory", "cc" \
+ : "rcx", "r11", "memory", "cc" \
); \
_ret; \
})
@@ -312,10 +317,10 @@ struct stat {
\
asm volatile ( \
"syscall\n" \
- : "=a" (_ret) \
+ : "=a"(_ret) \
: "r"(_arg1), "r"(_arg2), \
"0"(_num) \
- : "rcx", "r8", "r9", "r10", "r11", "memory", "cc" \
+ : "rcx", "r11", "memory", "cc" \
); \
_ret; \
})
@@ -330,10 +335,10 @@ struct stat {
\
asm volatile ( \
"syscall\n" \
- : "=a" (_ret) \
+ : "=a"(_ret) \
: "r"(_arg1), "r"(_arg2), "r"(_arg3), \
"0"(_num) \
- : "rcx", "r8", "r9", "r10", "r11", "memory", "cc" \
+ : "rcx", "r11", "memory", "cc" \
); \
_ret; \
})
@@ -349,10 +354,10 @@ struct stat {
\
asm volatile ( \
"syscall\n" \
- : "=a" (_ret), "=r"(_arg4) \
+ : "=a"(_ret) \
: "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), \
"0"(_num) \
- : "rcx", "r8", "r9", "r11", "memory", "cc" \
+ : "rcx", "r11", "memory", "cc" \
); \
_ret; \
})
@@ -369,10 +374,10 @@ struct stat {
\
asm volatile ( \
"syscall\n" \
- : "=a" (_ret), "=r"(_arg4), "=r"(_arg5) \
+ : "=a"(_ret) \
: "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \
"0"(_num) \
- : "rcx", "r9", "r11", "memory", "cc" \
+ : "rcx", "r11", "memory", "cc" \
); \
_ret; \
})
@@ -390,7 +395,7 @@ struct stat {
\
asm volatile ( \
"syscall\n" \
- : "=a" (_ret), "=r"(_arg4), "=r"(_arg5) \
+ : "=a"(_ret) \
: "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \
"r"(_arg6), "0"(_num) \
: "rcx", "r11", "memory", "cc" \
@@ -399,17 +404,23 @@ struct stat {
})
/* startup code */
+/*
+ * x86-64 System V ABI mandates:
+ * 1) %rsp must be 16-byte aligned right before the function call.
+ * 2) The deepest stack frame should be zero (the %rbp).
+ *
+ */
asm(".section .text\n"
".global _start\n"
"_start:\n"
"pop %rdi\n" // argc (first arg, %rdi)
"mov %rsp, %rsi\n" // argv[] (second arg, %rsi)
"lea 8(%rsi,%rdi,8),%rdx\n" // then a NULL then envp (third arg, %rdx)
- "and $-16, %rsp\n" // x86 ABI : esp must be 16-byte aligned when
- "sub $8, %rsp\n" // entering the callee
+ "xor %ebp, %ebp\n" // zero the stack frame
+ "and $-16, %rsp\n" // x86 ABI : esp must be 16-byte aligned before call
"call main\n" // main() returns the status code, we'll exit with it.
- "movzb %al, %rdi\n" // retrieve exit code from 8 lower bits
- "mov $60, %rax\n" // NR_exit == 60
+ "mov %eax, %edi\n" // retrieve exit code (32 bit)
+ "mov $60, %eax\n" // NR_exit == 60
"syscall\n" // really exit
"hlt\n" // ensure it does not return
"");
@@ -577,20 +588,28 @@ struct sys_stat_struct {
})
/* startup code */
+/*
+ * i386 System V ABI mandates:
+ * 1) last pushed argument must be 16-byte aligned.
+ * 2) The deepest stack frame should be set to zero
+ *
+ */
asm(".section .text\n"
".global _start\n"
"_start:\n"
"pop %eax\n" // argc (first arg, %eax)
"mov %esp, %ebx\n" // argv[] (second arg, %ebx)
"lea 4(%ebx,%eax,4),%ecx\n" // then a NULL then envp (third arg, %ecx)
- "and $-16, %esp\n" // x86 ABI : esp must be 16-byte aligned when
+ "xor %ebp, %ebp\n" // zero the stack frame
+ "and $-16, %esp\n" // x86 ABI : esp must be 16-byte aligned before
+ "sub $4, %esp\n" // the call instruction (args are aligned)
"push %ecx\n" // push all registers on the stack so that we
"push %ebx\n" // support both regparm and plain stack modes
"push %eax\n"
"call main\n" // main() returns the status code in %eax
- "movzbl %al, %ebx\n" // retrieve exit code from lower 8 bits
- "movl $1, %eax\n" // NR_exit == 1
- "int $0x80\n" // exit now
+ "mov %eax, %ebx\n" // retrieve exit code (32-bit int)
+ "movl $1, %eax\n" // NR_exit == 1
+ "int $0x80\n" // exit now
"hlt\n" // ensure it does not
"");
@@ -774,7 +793,6 @@ asm(".section .text\n"
"and %r3, %r1, $-8\n" // AAPCS : sp must be 8-byte aligned in the
"mov %sp, %r3\n" // callee, an bl doesn't push (lr=pc)
"bl main\n" // main() returns the status code, we'll exit with it.
- "and %r0, %r0, $0xff\n" // limit exit code to 8 bits
"movs r7, $1\n" // NR_exit == 1
"svc $0x00\n"
"");
@@ -971,7 +989,6 @@ asm(".section .text\n"
"add x2, x2, x1\n" // + argv
"and sp, x1, -16\n" // sp must be 16-byte aligned in the callee
"bl main\n" // main() returns the status code, we'll exit with it.
- "and x0, x0, 0xff\n" // limit exit code to 8 bits
"mov x8, 93\n" // NR_exit == 93
"svc #0\n"
"");
@@ -1176,7 +1193,7 @@ asm(".section .text\n"
"addiu $sp,$sp,-16\n" // the callee expects to save a0..a3 there!
"jal main\n" // main() returns the status code, we'll exit with it.
"nop\n" // delayed slot
- "and $a0, $v0, 0xff\n" // limit exit code to 8 bits
+ "move $a0, $v0\n" // retrieve 32-bit exit code from v0
"li $v0, 4001\n" // NR_exit == 4001
"syscall\n"
".end __start\n"
@@ -1374,7 +1391,6 @@ asm(".section .text\n"
"add a2,a2,a1\n" // + argv
"andi sp,a1,-16\n" // sp must be 16-byte aligned
"call main\n" // main() returns the status code, we'll exit with it.
- "andi a0, a0, 0xff\n" // limit exit code to 8 bits
"li a7, 93\n" // NR_exit == 93
"ecall\n"
"");
@@ -1556,6 +1572,12 @@ pid_t sys_getpid(void)
}
static __attribute__((unused))
+pid_t sys_gettid(void)
+{
+ return my_syscall0(__NR_gettid);
+}
+
+static __attribute__((unused))
int sys_gettimeofday(struct timeval *tv, struct timezone *tz)
{
return my_syscall2(__NR_gettimeofday, tv, tz);
@@ -2014,6 +2036,18 @@ pid_t getpid(void)
}
static __attribute__((unused))
+pid_t gettid(void)
+{
+ pid_t ret = sys_gettid();
+
+ if (ret < 0) {
+ SET_ERRNO(-ret);
+ ret = -1;
+ }
+ return ret;
+}
+
+static __attribute__((unused))
int gettimeofday(struct timeval *tv, struct timezone *tz)
{
int ret = sys_gettimeofday(tv, tz);
diff --git a/tools/include/uapi/drm/drm.h b/tools/include/uapi/drm/drm.h
index 3b810b53ba8b..642808520d92 100644
--- a/tools/include/uapi/drm/drm.h
+++ b/tools/include/uapi/drm/drm.h
@@ -1096,6 +1096,24 @@ extern "C" {
#define DRM_IOCTL_SYNCOBJ_TRANSFER DRM_IOWR(0xCC, struct drm_syncobj_transfer)
#define DRM_IOCTL_SYNCOBJ_TIMELINE_SIGNAL DRM_IOWR(0xCD, struct drm_syncobj_timeline_array)
+/**
+ * DRM_IOCTL_MODE_GETFB2 - Get framebuffer metadata.
+ *
+ * This queries metadata about a framebuffer. User-space fills
+ * &drm_mode_fb_cmd2.fb_id as the input, and the kernels fills the rest of the
+ * struct as the output.
+ *
+ * If the client is DRM master or has &CAP_SYS_ADMIN, &drm_mode_fb_cmd2.handles
+ * will be filled with GEM buffer handles. Planes are valid until one has a
+ * zero handle -- this can be used to compute the number of planes.
+ *
+ * Otherwise, &drm_mode_fb_cmd2.handles will be zeroed and planes are valid
+ * until one has a zero &drm_mode_fb_cmd2.pitches.
+ *
+ * If the framebuffer has a format modifier, &DRM_MODE_FB_MODIFIERS will be set
+ * in &drm_mode_fb_cmd2.flags and &drm_mode_fb_cmd2.modifier will contain the
+ * modifier. Otherwise, user-space must ignore &drm_mode_fb_cmd2.modifier.
+ */
#define DRM_IOCTL_MODE_GETFB2 DRM_IOWR(0xCE, struct drm_mode_fb_cmd2)
/*
diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index 1daa45268de2..f066637ee206 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -1131,6 +1131,7 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
#define KVM_CAP_ARM_MTE 205
#define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206
+#define KVM_CAP_XSAVE2 207
#ifdef KVM_CAP_IRQ_ROUTING
@@ -1551,6 +1552,8 @@ struct kvm_s390_ucas_mapping {
/* Available with KVM_CAP_XSAVE */
#define KVM_GET_XSAVE _IOR(KVMIO, 0xa4, struct kvm_xsave)
#define KVM_SET_XSAVE _IOW(KVMIO, 0xa5, struct kvm_xsave)
+/* Available with KVM_CAP_XSAVE2 */
+#define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave)
/* Available with KVM_CAP_XCRS */
#define KVM_GET_XCRS _IOR(KVMIO, 0xa6, struct kvm_xcrs)
#define KVM_SET_XCRS _IOW(KVMIO, 0xa7, struct kvm_xcrs)
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index bd8860eeb291..4cd39aaccbe7 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -1332,7 +1332,10 @@ union perf_mem_data_src {
/* hop level */
#define PERF_MEM_HOPS_0 0x01 /* remote core, same node */
-/* 2-7 available */
+#define PERF_MEM_HOPS_1 0x02 /* remote node, same socket */
+#define PERF_MEM_HOPS_2 0x03 /* remote socket, same board */
+#define PERF_MEM_HOPS_3 0x04 /* remote board */
+/* 5-7 available */
#define PERF_MEM_HOPS_SHIFT 43
#define PERF_MEM_S(a, s) \
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-12 01:06:26 +0300