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Bug 21053: sh: Reduce namespace pollution from sys/ucontext.h

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The problem is basically that sys/ucontext.h is defining R0..R15
which happens to conflict with some packages like Firefox when
trying to build on SH.

The very same problem existed on arm back then [1] and it was fixed by
renaming R0..R15 to REG_R0..REG_R15.  This patch imploy a similar
strategy for SH.

Checked on sh4-linux-gnu with run-built-tests=no and I also got reports
that it fixes Firefox build on Debian sh4.

	* sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym: Use new REG_R*
	constants instead of the old R* ones.
	* sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.sym: Likewise.
	* sysdeps/unix/sysv/linux/sh/sys/ucontext.h (NGPREG): Rename...
	(NGREG): ... to this, to fit in with other architectures.
	(gpregset_t): Use new NGREG macro.
	[__USE_GNU]: Remove condition; all architectures other than tile
	are unconditional.
	(R*): Rename to REG_R*.
This commit is contained in:
James Clarke 2017-01-24 09:20:06 -02:00 committed by Adhemerval Zanella
parent f3bef6a748
commit 3e1b518550
4 changed files with 78 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
ChangeLog
View File

@ -1,3 +1,15 @@
2017-01-24 James Clarke <jrtc27@jrtc27.com>
* sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym: Use new REG_R*
constants instead of the old R* ones.
* sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.sym: Likewise.
* sysdeps/unix/sysv/linux/sh/sys/ucontext.h (NGPREG): Rename...
(NGREG): ... to this, to fit in with other architectures.
(gpregset_t): Use new NGREG macro.
[__USE_GNU]: Remove condition; all architectures other than tile
are unconditional.
(R*): Rename to REG_R*.
2017-01-20 DJ Delorie <dj@redhat.com>
* elf/dl-tunables.c (tunable_set_val_if_valid_range): Split into ...

32
sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym
View File

@ -13,22 +13,22 @@ SIG_SETMASK
oLINK ucontext (uc_link)
oSS_SP ucontext (uc_stack.ss_sp)
oSS_SIZE ucontext (uc_stack.ss_size)
oR0 mcontext (gregs[R0])
oR1 mcontext (gregs[R1])
oR2 mcontext (gregs[R2])
oR3 mcontext (gregs[R3])
oR4 mcontext (gregs[R4])
oR5 mcontext (gregs[R5])
oR6 mcontext (gregs[R6])
oR7 mcontext (gregs[R7])
oR8 mcontext (gregs[R8])
oR9 mcontext (gregs[R9])
oR10 mcontext (gregs[R10])
oR11 mcontext (gregs[R11])
oR12 mcontext (gregs[R12])
oR13 mcontext (gregs[R13])
oR14 mcontext (gregs[R14])
oR15 mcontext (gregs[R15])
oR0 mcontext (gregs[REG_R0])
oR1 mcontext (gregs[REG_R1])
oR2 mcontext (gregs[REG_R2])
oR3 mcontext (gregs[REG_R3])
oR4 mcontext (gregs[REG_R4])
oR5 mcontext (gregs[REG_R5])
oR6 mcontext (gregs[REG_R6])
oR7 mcontext (gregs[REG_R7])
oR8 mcontext (gregs[REG_R8])
oR9 mcontext (gregs[REG_R9])
oR10 mcontext (gregs[REG_R10])
oR11 mcontext (gregs[REG_R11])
oR12 mcontext (gregs[REG_R12])
oR13 mcontext (gregs[REG_R13])
oR14 mcontext (gregs[REG_R14])
oR15 mcontext (gregs[REG_R15])
oPC mcontext (pc)
oPR mcontext (pr)
oSR mcontext (sr)

32
sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.sym
View File

@ -13,22 +13,22 @@ SIG_SETMASK
oLINK ucontext (uc_link)
oSS_SP ucontext (uc_stack.ss_sp)
oSS_SIZE ucontext (uc_stack.ss_size)
oR0 mcontext (gregs[R0])
oR1 mcontext (gregs[R1])
oR2 mcontext (gregs[R2])
oR3 mcontext (gregs[R3])
oR4 mcontext (gregs[R4])
oR5 mcontext (gregs[R5])
oR6 mcontext (gregs[R6])
oR7 mcontext (gregs[R7])
oR8 mcontext (gregs[R8])
oR9 mcontext (gregs[R9])
oR10 mcontext (gregs[R10])
oR11 mcontext (gregs[R11])
oR12 mcontext (gregs[R12])
oR13 mcontext (gregs[R13])
oR14 mcontext (gregs[R14])
oR15 mcontext (gregs[R15])
oR0 mcontext (gregs[REG_R0])
oR1 mcontext (gregs[REG_R1])
oR2 mcontext (gregs[REG_R2])
oR3 mcontext (gregs[REG_R3])
oR4 mcontext (gregs[REG_R4])
oR5 mcontext (gregs[REG_R5])
oR6 mcontext (gregs[REG_R6])
oR7 mcontext (gregs[REG_R7])
oR8 mcontext (gregs[REG_R8])
oR9 mcontext (gregs[REG_R9])
oR10 mcontext (gregs[REG_R10])
oR11 mcontext (gregs[REG_R11])
oR12 mcontext (gregs[REG_R12])
oR13 mcontext (gregs[REG_R13])
oR14 mcontext (gregs[REG_R14])
oR15 mcontext (gregs[REG_R15])
oPC mcontext (pc)
oPR mcontext (pr)
oSR mcontext (sr)

70
sysdeps/unix/sysv/linux/sh/sys/ucontext.h
View File

@ -32,49 +32,47 @@
typedef int greg_t;
/* Number of general registers. */
#define NGPREG 16
#define NGREG 16
/* Container for all general registers. */
typedef greg_t gregset_t[NGPREG];
typedef greg_t gregset_t[NGREG];
#ifdef __USE_GNU
/* Number of each register is the `gregset_t' array. */
enum
{
R0 = 0,
#define R0 R0
R1 = 1,
#define R1 R1
R2 = 2,
#define R2 R2
R3 = 3,
#define R3 R3
R4 = 4,
#define R4 R4
R5 = 5,
#define R5 R5
R6 = 6,
#define R6 R6
R7 = 7,
#define R7 R7
R8 = 8,
#define R8 R8
R9 = 9,
#define R9 R9
R10 = 10,
#define R10 R10
R11 = 11,
#define R11 R11
R12 = 12,
#define R12 R12
R13 = 13,
#define R13 R13
R14 = 14,
#define R14 R14
R15 = 15,
#define R15 R15
REG_R0 = 0,
#define REG_R0 REG_R0
REG_R1 = 1,
#define REG_R1 REG_R1
REG_R2 = 2,
#define REG_R2 REG_R2
REG_R3 = 3,
#define REG_R3 REG_R3
REG_R4 = 4,
#define REG_R4 REG_R4
REG_R5 = 5,
#define REG_R5 REG_R5
REG_R6 = 6,
#define REG_R6 REG_R6
REG_R7 = 7,
#define REG_R7 REG_R7
REG_R8 = 8,
#define REG_R8 REG_R8
REG_R9 = 9,
#define REG_R9 REG_R9
REG_R10 = 10,
#define REG_R10 REG_R10
REG_R11 = 11,
#define REG_R11 REG_R11
REG_R12 = 12,
#define REG_R12 REG_R12
REG_R13 = 13,
#define REG_R13 REG_R13
REG_R14 = 14,
#define REG_R14 REG_R14
REG_R15 = 15,
#define REG_R15 REG_R15
};
#endif
typedef int freg_t;