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fips_canister.c: initial support for cross-compiling. "Initial" refers

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to the two-entry list of verified platforms in #ifndef
FIPS_REF_POINT_IS_SAFE_TO_CROSS_COMPILE pre-processor section.
This commit is contained in:
Andy Polyakov 2011-05-10 09:53:59 +00:00
parent dc7995eeb8
commit 31b46ebb62
1 changed files with 15 additions and 5 deletions
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20
fips/fips_canister.c
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@ -22,12 +22,18 @@ const void *FIPS_text_end(void);
(defined(__linux) && (defined(__arm) || defined(__arm__))) || \
(defined(__i386) || defined(__i386__)) || \
(defined(__x86_64) || defined(__x86_64__)) || \
defined(__ANDROID__) || \
(defined(vax) || defined(__vax__))
# define POINTER_TO_FUNCTION_IS_POINTER_TO_1ST_INSTRUCTION
# endif
#endif
#if !defined(FIPS_REF_POINT_IS_SAFE_TO_CROSS_COMPILE)
# if (defined(__ANDROID__) && (defined(__arm__) || defined(__arm))) || \
(defined(__vxworks) && (defined(__ppc__) || defined(__ppc)))
# define FIPS_REF_POINT_IS_SAFE_TO_CROSS_COMPILE
# endif
#endif
#if defined(__xlC__) && __xlC__>=0x600 && (defined(_POWER) || defined(_ARCH_PPC))
static void *instruction_pointer_xlc(void);
# pragma mc_func instruction_pointer_xlc {\
@ -89,9 +95,10 @@ static void *instruction_pointer(void)
"move %0,$31\n\t"
"move $31,%1" /* restore ra */
: "=r"(ret),"=r"(scratch) );
# elif defined(__ppc__) || defined(__powerpc) || defined(__powerpc__) || \
# elif defined(__ppc__) || defined(__ppc) || \\
defined(__powerpc) || defined(__powerpc__) || \
defined(__POWERPC__) || defined(_POWER) || defined(__PPC__) || \
defined(__PPC64__) || defined(__powerpc64__)
defined(__PPC64__) || defined(__ppc64__) || defined(__powerpc64__)
# define INSTRUCTION_POINTER_IMPLEMENTED
void *scratch;
__asm __volatile ( "mfspr %1,8\n\t" /* save lr */
@ -115,6 +122,9 @@ static void *instruction_pointer(void)
# define INSTRUCTION_POINTER_IMPLEMENTED
__asm __volatile ( "leaq 0(%%rip),%0" : "=r"(ret) );
ret = (void *)((size_t)ret&~3UL); /* align for better performance */
# elif defined(__arm) || defined(__arm__)
# define INSTRUCTION_POINTER_IMPLEMENTED
__asm __volatile ( "sub %0,pc,#8" : "=r"(ret) );
# endif
#elif defined(__DECC) && defined(__alpha)
# define INSTRUCTION_POINTER_IMPLEMENTED
@ -139,6 +149,8 @@ static void *instruction_pointer(void)
*/
const void *FIPS_ref_point()
{
#if defined(FIPS_REF_POINT_IS_SAFE_TO_CROSS_COMPILE)
return (void *)FIPS_ref_point;
#if defined(INSTRUCTION_POINTER_IMPLEMENTED)
return instruction_pointer();
/* Below we essentially cover vendor compilers which do not support
@ -177,8 +189,6 @@ const void *FIPS_ref_point()
# else
return (void *)FIPS_ref_point;
# endif
#elif defined(__vxworks)
return (void *)FIPS_ref_point;
/*
* In case you wonder why there is no #ifdef __linux. All Linux targets
* are GCC-based and therefore are covered by instruction_pointer above