// SPDX-License-Identifier: GPL-2.0
/* Converted from tools/testing/selftests/bpf/verifier/int_ptr.c */

#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"

SEC("socket")
__description("arg pointer to long uninitialized")
__success
__naked void arg_ptr_to_long_uninitialized(void)
{
        asm volatile ("                                 \
        /* bpf_strtoul arg1 (buf) */                    \
        r7 = r10;                                       \
        r7 += -8;                                       \
        r0 = 0x00303036;                                \
        *(u64*)(r7 + 0) = r0;                           \
        r1 = r7;                                        \
        /* bpf_strtoul arg2 (buf_len) */                \
        r2 = 4;                                         \
        /* bpf_strtoul arg3 (flags) */                  \
        r3 = 0;                                         \
        /* bpf_strtoul arg4 (res) */                    \
        r7 += -8;                                       \
        r4 = r7;                                        \
        /* bpf_strtoul() */                             \
        call %[bpf_strtoul];                            \
        r0 = 1;                                         \
        exit;                                           \
"       :
        : __imm(bpf_strtoul)
        : __clobber_all);
}

SEC("socket")
__description("arg pointer to long half-uninitialized")
__success
__retval(0)
__naked void ptr_to_long_half_uninitialized(void)
{
        asm volatile ("                                 \
        /* bpf_strtoul arg1 (buf) */                    \
        r7 = r10;                                       \
        r7 += -8;                                       \
        r0 = 0x00303036;                                \
        *(u64*)(r7 + 0) = r0;                           \
        r1 = r7;                                        \
        /* bpf_strtoul arg2 (buf_len) */                \
        r2 = 4;                                         \
        /* bpf_strtoul arg3 (flags) */                  \
        r3 = 0;                                         \
        /* bpf_strtoul arg4 (res) */                    \
        r7 += -8;                                       \
        *(u32*)(r7 + 0) = r0;                           \
        r4 = r7;                                        \
        /* bpf_strtoul() */                             \
        call %[bpf_strtoul];                            \
        r0 = 0;                                         \
        exit;                                           \
"       :
        : __imm(bpf_strtoul)
        : __clobber_all);
}

SEC("cgroup/sysctl")
__description("arg pointer to long misaligned")
__failure __msg("misaligned stack access off -20+0 size 8")
__naked void arg_ptr_to_long_misaligned(void)
{
        asm volatile ("                                 \
        /* bpf_strtoul arg1 (buf) */                    \
        r7 = r10;                                       \
        r7 += -8;                                       \
        r0 = 0x00303036;                                \
        *(u64*)(r7 + 0) = r0;                           \
        r1 = r7;                                        \
        /* bpf_strtoul arg2 (buf_len) */                \
        r2 = 4;                                         \
        /* bpf_strtoul arg3 (flags) */                  \
        r3 = 0;                                         \
        /* bpf_strtoul arg4 (res) */                    \
        r7 += -12;                                      \
        r0 = 0;                                         \
        *(u32*)(r7 + 0) = r0;                           \
        *(u64*)(r7 + 4) = r0;                           \
        r4 = r7;                                        \
        /* bpf_strtoul() */                             \
        call %[bpf_strtoul];                            \
        r0 = 1;                                         \
        exit;                                           \
"       :
        : __imm(bpf_strtoul)
        : __clobber_all);
}

SEC("cgroup/sysctl")
__description("arg pointer to long size < sizeof(long)")
__failure __msg("invalid write to stack R4 off=-4 size=8")
__naked void to_long_size_sizeof_long(void)
{
        asm volatile ("                                 \
        /* bpf_strtoul arg1 (buf) */                    \
        r7 = r10;                                       \
        r7 += -16;                                      \
        r0 = 0x00303036;                                \
        *(u64*)(r7 + 0) = r0;                           \
        r1 = r7;                                        \
        /* bpf_strtoul arg2 (buf_len) */                \
        r2 = 4;                                         \
        /* bpf_strtoul arg3 (flags) */                  \
        r3 = 0;                                         \
        /* bpf_strtoul arg4 (res) */                    \
        r7 += 12;                                       \
        *(u32*)(r7 + 0) = r0;                           \
        r4 = r7;                                        \
        /* bpf_strtoul() */                             \
        call %[bpf_strtoul];                            \
        r0 = 1;                                         \
        exit;                                           \
"       :
        : __imm(bpf_strtoul)
        : __clobber_all);
}

SEC("cgroup/sysctl")
__description("arg pointer to long initialized")
__success
__naked void arg_ptr_to_long_initialized(void)
{
        asm volatile ("                                 \
        /* bpf_strtoul arg1 (buf) */                    \
        r7 = r10;                                       \
        r7 += -8;                                       \
        r0 = 0x00303036;                                \
        *(u64*)(r7 + 0) = r0;                           \
        r1 = r7;                                        \
        /* bpf_strtoul arg2 (buf_len) */                \
        r2 = 4;                                         \
        /* bpf_strtoul arg3 (flags) */                  \
        r3 = 0;                                         \
        /* bpf_strtoul arg4 (res) */                    \
        r7 += -8;                                       \
        *(u64*)(r7 + 0) = r0;                           \
        r4 = r7;                                        \
        /* bpf_strtoul() */                             \
        call %[bpf_strtoul];                            \
        r0 = 1;                                         \
        exit;                                           \
"       :
        : __imm(bpf_strtoul)
        : __clobber_all);
}

char _license[] SEC("license") = "GPL";