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strlen-armv7.S: Fix preprocessor check 

Hi!

I've got the situation, that the function strlen() occurs twice in libc.a
(building newlib for ARM-V7a and Size-Optimized).

In newlib/libc/machine/arm/strlen.c there are the pre-processor stetements ...
#if defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED) || \
  (defined (__thumb__) && !defined (__thumb2__))
/*...*/
#else

#if !(defined(_ISA_ARM_7) || defined(__ARM_ARCH_6T2__))
/*...*/
#endif

and in newlib/libc/machine/arm/strlen-armv7.S the "exclude" begins with

/* NOTE: This ifdef MUST match the ones in arm/strlen.c
   We fallback to the one in arm/strlen.c for size optimised or
   for older architectures. */
#if defined(_ISA_ARM_7) || defined(__ARM_ARCH_6T2__) && \
    !(defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED) || \
      (defined (__thumb__) && !defined (__thumb2__)))

But this is not completely contrary to arm/strlen.c (see above)!

To fix the logical statement in arm/strlen-armv7.S there are parentheses needed

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2015-08-27 12:55:22 +02:00
parent 892cfcb7c2
commit e6d9af11f1
2 changed files with 6 additions and 1 deletions
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5
newlib/ChangeLog
View File

@ -1,3 +1,8 @@
2015-08-27 Markus Eisenmann <meisenmann.lba@fh-salzburg.ac.at>
* libc/machine/arm/strlen-armv7.S: Fix prepocessor check to avoid
double definition of strlen.
2015-08-27 Andre Vieira <andre.simoesdiasvieira@arm.com>
* libc/include/sys/_intsup.h: Defined new __INTxx, __FASTxx and

2
newlib/libc/machine/arm/strlen-armv7.S
View File

@ -37,7 +37,7 @@
/* NOTE: This ifdef MUST match the ones in arm/strlen.c
We fallback to the one in arm/strlen.c for size optimised or
for older architectures. */
#if defined(_ISA_ARM_7) || defined(__ARM_ARCH_6T2__) && \
#if (defined(_ISA_ARM_7) || defined(__ARM_ARCH_6T2__)) && \
!(defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED) || \
(defined (__thumb__) && !defined (__thumb2__)))