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chromium_with_tee
riscv-lss.patch
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File riscv-lss.patch of Package chromium_with_tee
Index: chromium-102.0.5005.61/third_party/lss/linux_syscall_support.h =================================================================== --- chromium-102.0.5005.61.orig/third_party/lss/linux_syscall_support.h +++ chromium-102.0.5005.61/third_party/lss/linux_syscall_support.h @@ -88,7 +88,7 @@ */ #if (defined(__i386__) || defined(__x86_64__) || defined(__ARM_ARCH_3__) || \ defined(__mips__) || defined(__PPC__) || defined(__ARM_EABI__) || \ - defined(__aarch64__) || defined(__s390__)) || defined(__e2k__) \ + defined(__aarch64__) || defined(__s390__) || defined(__riscv)) || defined(__e2k__) \ && (defined(__linux) || defined(__ANDROID__)) #ifndef SYS_CPLUSPLUS @@ -302,7 +302,7 @@ struct kernel_old_sigaction { } __attribute__((packed,aligned(4))); #elif (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) #define kernel_old_sigaction kernel_sigaction -#elif defined(__aarch64__) +#elif defined(__aarch64__) || defined(__riscv) // No kernel_old_sigaction defined for arm64. #endif @@ -342,7 +342,9 @@ struct kernel_sigaction { void (*sa_sigaction_)(int, siginfo_t *, void *); }; unsigned long sa_flags; +#ifndef __riscv void (*sa_restorer)(void); +#endif struct kernel_sigset_t sa_mask; #endif }; @@ -542,7 +544,7 @@ struct kernel_stat { int st_blocks; int st_pad4[14]; }; -#elif defined(__aarch64__) +#elif defined(__aarch64__) || defined(__riscv) struct kernel_stat { unsigned long st_dev; unsigned long st_ino; @@ -1110,7 +1112,7 @@ struct kernel_statfs { #define __NR_getrandom (__NR_SYSCALL_BASE + 384) #endif /* End of ARM 3/EABI definitions */ -#elif defined(__aarch64__) +#elif defined(__aarch64__) || defined(__riscv) #ifndef __NR_setxattr #define __NR_setxattr 5 #endif @@ -1925,7 +1927,7 @@ struct kernel_statfs { #undef LSS_RETURN #if (defined(__i386__) || defined(__x86_64__) || defined(__ARM_ARCH_3__) \ - || defined(__ARM_EABI__) || defined(__aarch64__) || defined(__s390__)) \ + || defined(__ARM_EABI__) || defined(__aarch64__) || defined(__s390__) || defined(__riscv)) \ || defined(__e2k__) /* Failing system calls return a negative result in the range of * -1..-4095. These are "errno" values with the sign inverted. @@ -3419,6 +3421,122 @@ struct kernel_statfs { } LSS_RETURN(int, __ret); } + #elif defined(__riscv) + #undef LSS_REG + #define LSS_REG(r,a) register int64_t __r##r __asm__("a"#r) = (int64_t)a + #undef LSS_BODY + #define LSS_BODY(type,name,args...) \ + register int64_t __res_a0 __asm__("a0"); \ + register int64_t __a7 __asm__("a7") = __NR_##name; \ + int64_t __res; \ + __asm__ __volatile__ ("scall\n" \ + : "=r"(__res_a0) \ + : "r"(__a7) , ## args \ + : "memory"); \ + __res = __res_a0; \ + LSS_RETURN(type, __res) + #undef _syscall0 + #define _syscall0(type, name) \ + type LSS_NAME(name)(void) { \ + LSS_BODY(type, name); \ + } + #undef _syscall1 + #define _syscall1(type, name, type1, arg1) \ + type LSS_NAME(name)(type1 arg1) { \ + LSS_REG(0, arg1); LSS_BODY(type, name, "r"(__r0)); \ + } + #undef _syscall2 + #define _syscall2(type, name, type1, arg1, type2, arg2) \ + type LSS_NAME(name)(type1 arg1, type2 arg2) { \ + LSS_REG(0, arg1); LSS_REG(1, arg2); \ + LSS_BODY(type, name, "r"(__r0), "r"(__r1)); \ + } + #undef _syscall3 + #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \ + type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) { \ + LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3); \ + LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2)); \ + } + #undef _syscall4 + #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ + type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \ + LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3); \ + LSS_REG(3, arg4); \ + LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2), "r"(__r3)); \ + } + #undef _syscall5 + #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ + type5,arg5) \ + type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ + type5 arg5) { \ + LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3); \ + LSS_REG(3, arg4); LSS_REG(4, arg5); \ + LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2), "r"(__r3), \ + "r"(__r4)); \ + } + #undef _syscall6 + #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ + type5,arg5,type6,arg6) \ + type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ + type5 arg5, type6 arg6) { \ + LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3); \ + LSS_REG(3, arg4); LSS_REG(4, arg5); LSS_REG(5, arg6); \ + LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2), "r"(__r3), \ + "r"(__r4), "r"(__r5)); \ + } + + LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack, + int flags, void *arg, int *parent_tidptr, + void *newtls, int *child_tidptr) { + int64_t __res; + { + register int64_t __res_a0 __asm__("a0"); + register uint64_t __flags __asm__("a0") = flags; + register void *__stack __asm__("a1") = child_stack; + register void *__ptid __asm__("a2") = parent_tidptr; + register void *__tls __asm__("a3") = newtls; + register int *__ctid __asm__("a4") = child_tidptr; + __asm__ __volatile__(/* Push "arg" and "fn" onto the stack that will be + * used by the child. + */ + "addi %2,%2,-16\n" + "sd %1, 0(%2)\n" + "sd %4, 8(%2)\n" + + /* %a0 = syscall(%a0 = flags, + * %a1 = child_stack, + * %a2 = parent_tidptr, + * %a3 = newtls, + * %a4 = child_tidptr) + */ + "li a7, %8\n" + "scall\n" + + /* if (%a0 != 0) + * return %a0; + */ + "bnez %0, 1f\n" + + /* In the child, now. Call "fn(arg)". + */ + "ld a1, 0(sp)\n" + "ld a0, 8(sp)\n" + "jalr a1\n" + + /* Call _exit(%a0). + */ + "li a7, %9\n" + "scall\n" + "1:\n" + : "=r" (__res_a0) + : "r"(fn), "r"(__stack), "r"(__flags), "r"(arg), + "r"(__ptid), "r"(__tls), "r"(__ctid), + "i"(__NR_clone), "i"(__NR_exit) + : "cc", "memory"); + __res = __res_a0; + } + LSS_RETURN(int, __res); + } #elif defined(__e2k__) #undef _LSS_BODY @@ -4484,7 +4602,7 @@ struct kernel_statfs { LSS_SC_BODY(4, int, 8, d, type, protocol, sv); } #endif - #if defined(__ARM_EABI__) || defined (__aarch64__) + #if defined(__ARM_EABI__) || defined (__aarch64__) || defined(__riscv) LSS_INLINE _syscall3(ssize_t, recvmsg, int, s, struct kernel_msghdr*, msg, int, flags) LSS_INLINE _syscall3(ssize_t, sendmsg, int, s, const struct kernel_msghdr*, @@ -4812,7 +4930,7 @@ struct kernel_statfs { // TODO: define this in an arch-independant way instead of inlining the clone // syscall body. -# if defined(__aarch64__) +# if defined(__aarch64__) || defined(__riscv) LSS_INLINE pid_t LSS_NAME(fork)(void) { // No fork syscall on aarch64 - implement by means of the clone syscall. // Note that this does not reset glibc's cached view of the PID/TID, so
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