mirror of
https://sourceware.org/git/glibc.git
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alpha: Do signed promotion of 32-bit arguments to syscalls
This commit is contained in:
Richard Henderson
parent
64e65bc1ae
commit
f0a81bf387
@ -1,6 +1,15 @@
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2012-02-15 Richard Henderson <rth@twiddle.net>
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* sysdeps/unux/alpha/sysdep.h: Don't include <tls.h>
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* sysdeps/unix/alpha/sysdep.h (syscall_promote): New.
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(inline_syscall0, inline_syscall1, inline_syscall2,
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inline_syscall3, inline_syscall4, inline_syscall5,
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inline_syscall6): Use it.
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* sysdeps/unix/sysv/linux/alpha/setregid.c: Remove.
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* sysdeps/unix/sysv/linux/alpha/setreuid.c: Remove.
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* sysdeps/unix/sysv/linux/alpha/setresgid.c: Remove.
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* sysdeps/unix/sysv/linux/alpha/setresuid.c: Remove.
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* sysdeps/unix/alpha/sysdep.h: Don't include <tls.h>
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[PIC] (SYSCALL_ERROR_HANDLER): Emit nothing.
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[PIC] (SYSCALL_ERROR_LABEL): Add !samegp markup.
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@ -190,6 +190,12 @@ __LABEL(name) \
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#define INTERNAL_SYSCALL_DECL(err) \
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long int err __attribute__((unused))
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/* The normal Alpha calling convention sign-extends 32-bit quantties
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no matter what the "real" sign of the 32-bit type. We want to
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preserve that when filling in values for the kernel. */
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#define syscall_promote(arg) \
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(sizeof(arg) == 4 ? (long)(int)(long)(arg) : (long)(arg))
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/* Make sure and "use" the variable that we're not returning,
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in order to suppress unused variable warnings. */
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#define INTERNAL_SYSCALL_ERROR_P(val, err) ((void)val, err)
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@ -205,172 +211,126 @@ __LABEL(name) \
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#define inline_syscall0(name, args...) \
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{ \
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register long _sc_0; \
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register long _sc_19 __asm__("$19"); \
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\
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_sc_0 = name; \
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register long _sc_0 = name; \
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__asm__ __volatile__ \
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("callsys # %0 %1 <= %2" \
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: "=v"(_sc_0), "=r"(_sc_19) \
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: "0"(_sc_0) \
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: inline_syscall_clobbers, \
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: "+v"(_sc_0), "=r"(_sc_19) \
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: : inline_syscall_clobbers, \
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"$16", "$17", "$18", "$20", "$21"); \
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_sc_ret = _sc_0, _sc_err = _sc_19; \
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}
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#define inline_syscall1(name,arg1) \
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{ \
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register long _sc_0; \
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register long _sc_16 __asm__("$16"); \
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register long _tmp_16 = syscall_promote (arg1); \
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register long _sc_0 = name; \
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register long _sc_16 __asm__("$16") = _tmp_16; \
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register long _sc_19 __asm__("$19"); \
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register long _tmp_16 = (long) (arg1); \
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\
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_sc_0 = name; \
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_sc_16 = _tmp_16; \
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__asm__ __volatile__ \
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("callsys # %0 %1 <= %2 %3" \
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: "=v"(_sc_0), "=r"(_sc_19), "=r"(_sc_16) \
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: "0"(_sc_0), "2"(_sc_16) \
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: inline_syscall_clobbers, \
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: "+v"(_sc_0), "=r"(_sc_19), "+r"(_sc_16) \
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: : inline_syscall_clobbers, \
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"$17", "$18", "$20", "$21"); \
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_sc_ret = _sc_0, _sc_err = _sc_19; \
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}
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#define inline_syscall2(name,arg1,arg2) \
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{ \
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register long _sc_0; \
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register long _sc_16 __asm__("$16"); \
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register long _sc_17 __asm__("$17"); \
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register long _tmp_16 = syscall_promote (arg1); \
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register long _tmp_17 = syscall_promote (arg2); \
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register long _sc_0 = name; \
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register long _sc_16 __asm__("$16") = _tmp_16; \
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register long _sc_17 __asm__("$17") = _tmp_17; \
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register long _sc_19 __asm__("$19"); \
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register long _tmp_16 = (long) (arg1); \
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register long _tmp_17 = (long) (arg2); \
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\
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_sc_0 = name; \
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_sc_16 = _tmp_16; \
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_sc_17 = _tmp_17; \
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__asm__ __volatile__ \
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("callsys # %0 %1 <= %2 %3 %4" \
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: "=v"(_sc_0), "=r"(_sc_19), \
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"=r"(_sc_16), "=r"(_sc_17) \
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: "0"(_sc_0), "2"(_sc_16), "3"(_sc_17) \
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: inline_syscall_clobbers, \
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: "+v"(_sc_0), "=r"(_sc_19), \
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"+r"(_sc_16), "+r"(_sc_17) \
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: : inline_syscall_clobbers, \
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"$18", "$20", "$21"); \
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_sc_ret = _sc_0, _sc_err = _sc_19; \
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}
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#define inline_syscall3(name,arg1,arg2,arg3) \
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{ \
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register long _sc_0; \
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register long _sc_16 __asm__("$16"); \
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register long _sc_17 __asm__("$17"); \
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register long _sc_18 __asm__("$18"); \
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register long _tmp_16 = syscall_promote (arg1); \
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register long _tmp_17 = syscall_promote (arg2); \
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register long _tmp_18 = syscall_promote (arg3); \
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register long _sc_0 = name; \
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register long _sc_16 __asm__("$16") = _tmp_16; \
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register long _sc_17 __asm__("$17") = _tmp_17; \
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register long _sc_18 __asm__("$18") = _tmp_18; \
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register long _sc_19 __asm__("$19"); \
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register long _tmp_16 = (long) (arg1); \
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register long _tmp_17 = (long) (arg2); \
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register long _tmp_18 = (long) (arg3); \
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\
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_sc_0 = name; \
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_sc_16 = _tmp_16; \
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_sc_17 = _tmp_17; \
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_sc_18 = _tmp_18; \
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__asm__ __volatile__ \
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("callsys # %0 %1 <= %2 %3 %4 %5" \
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: "=v"(_sc_0), "=r"(_sc_19), "=r"(_sc_16), \
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"=r"(_sc_17), "=r"(_sc_18) \
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: "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), \
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"4"(_sc_18) \
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: inline_syscall_clobbers, "$20", "$21"); \
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: "+v"(_sc_0), "=r"(_sc_19), "+r"(_sc_16), \
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"+r"(_sc_17), "+r"(_sc_18) \
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: : inline_syscall_clobbers, "$20", "$21"); \
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_sc_ret = _sc_0, _sc_err = _sc_19; \
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}
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#define inline_syscall4(name,arg1,arg2,arg3,arg4) \
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{ \
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register long _sc_0; \
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register long _sc_16 __asm__("$16"); \
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register long _sc_17 __asm__("$17"); \
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register long _sc_18 __asm__("$18"); \
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register long _sc_19 __asm__("$19"); \
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register long _tmp_16 = (long) (arg1); \
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register long _tmp_17 = (long) (arg2); \
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register long _tmp_18 = (long) (arg3); \
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register long _tmp_19 = (long) (arg4); \
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\
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_sc_0 = name; \
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_sc_16 = _tmp_16; \
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_sc_17 = _tmp_17; \
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_sc_18 = _tmp_18; \
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_sc_19 = _tmp_19; \
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register long _tmp_16 = syscall_promote (arg1); \
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register long _tmp_17 = syscall_promote (arg2); \
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register long _tmp_18 = syscall_promote (arg3); \
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register long _tmp_19 = syscall_promote (arg4); \
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register long _sc_0 = name; \
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register long _sc_16 __asm__("$16") = _tmp_16; \
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register long _sc_17 __asm__("$17") = _tmp_17; \
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register long _sc_18 __asm__("$18") = _tmp_18; \
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register long _sc_19 __asm__("$19") = _tmp_19; \
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__asm__ __volatile__ \
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("callsys # %0 %1 <= %2 %3 %4 %5 %6" \
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: "=v"(_sc_0), "=r"(_sc_19), "=r"(_sc_16), \
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"=r"(_sc_17), "=r"(_sc_18) \
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: "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), \
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"4"(_sc_18), "1"(_sc_19) \
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: inline_syscall_clobbers, "$20", "$21"); \
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: "+v"(_sc_0), "+r"(_sc_19), "+r"(_sc_16), \
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"+r"(_sc_17), "+r"(_sc_18) \
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: : inline_syscall_clobbers, "$20", "$21"); \
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_sc_ret = _sc_0, _sc_err = _sc_19; \
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}
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#define inline_syscall5(name,arg1,arg2,arg3,arg4,arg5) \
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{ \
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register long _sc_0; \
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register long _sc_16 __asm__("$16"); \
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register long _sc_17 __asm__("$17"); \
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register long _sc_18 __asm__("$18"); \
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register long _sc_19 __asm__("$19"); \
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register long _sc_20 __asm__("$20"); \
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register long _tmp_16 = (long) (arg1); \
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register long _tmp_17 = (long) (arg2); \
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register long _tmp_18 = (long) (arg3); \
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register long _tmp_19 = (long) (arg4); \
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register long _tmp_20 = (long) (arg5); \
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\
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_sc_0 = name; \
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_sc_16 = _tmp_16; \
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_sc_17 = _tmp_17; \
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_sc_18 = _tmp_18; \
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_sc_19 = _tmp_19; \
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_sc_20 = _tmp_20; \
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register long _tmp_16 = syscall_promote (arg1); \
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register long _tmp_17 = syscall_promote (arg2); \
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register long _tmp_18 = syscall_promote (arg3); \
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register long _tmp_19 = syscall_promote (arg4); \
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register long _tmp_20 = syscall_promote (arg5); \
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register long _sc_0 = name; \
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register long _sc_16 __asm__("$16") = _tmp_16; \
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register long _sc_17 __asm__("$17") = _tmp_17; \
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register long _sc_18 __asm__("$18") = _tmp_18; \
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register long _sc_19 __asm__("$19") = _tmp_19; \
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register long _sc_20 __asm__("$20") = _tmp_20; \
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__asm__ __volatile__ \
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("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7" \
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: "=v"(_sc_0), "=r"(_sc_19), "=r"(_sc_16), \
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"=r"(_sc_17), "=r"(_sc_18), "=r"(_sc_20) \
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: "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), \
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"4"(_sc_18), "1"(_sc_19), "5"(_sc_20) \
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: inline_syscall_clobbers, "$21"); \
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: "+v"(_sc_0), "+r"(_sc_19), "+r"(_sc_16), \
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"+r"(_sc_17), "+r"(_sc_18), "+r"(_sc_20) \
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: : inline_syscall_clobbers, "$21"); \
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_sc_ret = _sc_0, _sc_err = _sc_19; \
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}
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#define inline_syscall6(name,arg1,arg2,arg3,arg4,arg5,arg6) \
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{ \
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register long _sc_0; \
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register long _sc_16 __asm__("$16"); \
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register long _sc_17 __asm__("$17"); \
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register long _sc_18 __asm__("$18"); \
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register long _sc_19 __asm__("$19"); \
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register long _sc_20 __asm__("$20"); \
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register long _sc_21 __asm__("$21"); \
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register long _tmp_16 = (long) (arg1); \
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register long _tmp_17 = (long) (arg2); \
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register long _tmp_18 = (long) (arg3); \
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register long _tmp_19 = (long) (arg4); \
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register long _tmp_20 = (long) (arg5); \
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register long _tmp_21 = (long) (arg6); \
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\
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_sc_0 = name; \
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_sc_16 = _tmp_16; \
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_sc_17 = _tmp_17; \
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_sc_18 = _tmp_18; \
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_sc_19 = _tmp_19; \
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_sc_20 = _tmp_20; \
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_sc_21 = _tmp_21; \
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register long _tmp_16 = syscall_promote (arg1); \
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register long _tmp_17 = syscall_promote (arg2); \
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register long _tmp_18 = syscall_promote (arg3); \
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register long _tmp_19 = syscall_promote (arg4); \
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register long _tmp_20 = syscall_promote (arg5); \
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register long _tmp_21 = syscall_promote (arg6); \
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register long _sc_0 = name; \
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register long _sc_16 __asm__("$16") = _tmp_16; \
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register long _sc_17 __asm__("$17") = _tmp_17; \
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register long _sc_18 __asm__("$18") = _tmp_18; \
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register long _sc_19 __asm__("$19") = _tmp_19; \
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register long _sc_20 __asm__("$20") = _tmp_20; \
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register long _sc_21 __asm__("$21") = _tmp_21; \
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__asm__ __volatile__ \
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("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7 %8" \
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: "=v"(_sc_0), "=r"(_sc_19), "=r"(_sc_16), \
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"=r"(_sc_17), "=r"(_sc_18), "=r"(_sc_20), \
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"=r"(_sc_21) \
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: "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), "4"(_sc_18), \
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"1"(_sc_19), "5"(_sc_20), "6"(_sc_21) \
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: inline_syscall_clobbers); \
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: "+v"(_sc_0), "+r"(_sc_19), "+r"(_sc_16), \
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"+r"(_sc_17), "+r"(_sc_18), "+r"(_sc_20), \
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"+r"(_sc_21) \
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: : inline_syscall_clobbers); \
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_sc_ret = _sc_0, _sc_err = _sc_19; \
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}
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@ -1,31 +0,0 @@
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/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
|
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modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
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|
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The GNU C Library is distributed in the hope that it will be useful,
|
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
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02111-1307 USA. */
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#include <errno.h>
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#include <unistd.h>
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#include <setxid.h>
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int
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__setregid (gid_t rgid, gid_t egid)
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{
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return INLINE_SETXID_SYSCALL (setregid, 2, (int) rgid, (int) egid);
|
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}
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#ifndef __setregid
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weak_alias (__setregid, setregid)
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#endif
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@ -1,33 +0,0 @@
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/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
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#include <errno.h>
|
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#include <unistd.h>
|
||||
#include <setxid.h>
|
||||
|
||||
|
||||
int
|
||||
__setresgid (gid_t rgid, gid_t egid, gid_t sgid)
|
||||
{
|
||||
return INLINE_SETXID_SYSCALL (setresgid, 3, (int) rgid,
|
||||
(int) egid, (int) sgid);
|
||||
}
|
||||
libc_hidden_def (__setresgid)
|
||||
#ifndef __setresgid
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||||
weak_alias (__setresgid, setresgid)
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||||
#endif
|
||||
@ -1,33 +0,0 @@
|
||||
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <errno.h>
|
||||
#include <unistd.h>
|
||||
#include <setxid.h>
|
||||
|
||||
|
||||
int
|
||||
__setresuid (uid_t ruid, uid_t euid, uid_t suid)
|
||||
{
|
||||
return INLINE_SETXID_SYSCALL (setresuid, 3, (int) ruid,
|
||||
(int) euid, (int) suid);
|
||||
}
|
||||
libc_hidden_def (__setresuid)
|
||||
#ifndef __setresuid
|
||||
weak_alias (__setresuid, setresuid)
|
||||
#endif
|
||||
@ -1,31 +0,0 @@
|
||||
/* Copyright (C) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <errno.h>
|
||||
#include <unistd.h>
|
||||
#include <setxid.h>
|
||||
|
||||
|
||||
int
|
||||
__setreuid (uid_t ruid, uid_t euid)
|
||||
{
|
||||
return INLINE_SETXID_SYSCALL (setreuid, 2, (int) ruid, (int) euid);
|
||||
}
|
||||
#ifndef __setreuid
|
||||
weak_alias (__setreuid, setreuid)
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user