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[PPC64] Add PPC64 entry to README and fix David's typo in ppc64/get_func_addr.c

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Jose Flavio Aguilar Paulino 2007-08-24 10:54:00 -06:00 committed by David Mosberger-Tang
parent e6b9f350f7
commit 3e24581adc
2 changed files with 23 additions and 3 deletions
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18
README
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@ -61,6 +61,24 @@ workaround is to issue the following commands before running
GCC v3.3.2 or later have been fixed and do not require this GCC v3.3.2 or later have been fixed and do not require this
workaround. workaround.
* Building for PowerPC64 / Linux
For building for power64 you should use:
$ ./configure CFLAGS="-g -O2 -m64" CXXFLAGS="-g -O2 -m64"
If your power support altivec registers:
$ ./configure CFLAGS="-g -O2 -m64 -maltivec" CXXFLAGS="-g -O2 -m64 -maltivec"
To check if your processor has support for vector registers (altivec):
cat /proc/cpuinfo | grep altivec
and should have something like this:
cpu : PPC970, altivec supported
If libunwind seems to not work (backtracing failing), try to compile
it with -O0, without optimizations. There are some compiler problems
depending on the version of your gcc.
* Regression Testing * Regression Testing

8
src/ppc64/get_func_addr.c
View file

@ -35,9 +35,11 @@ tdep_get_func_addr (unw_addr_space_t as, unw_word_t addr,
int ret; int ret;
a = unw_get_accessors (as); a = unw_get_accessors (as);
/* entry-point is stored in the 1st word of the function descriptor: */ /* Entry-point is stored in the 1st word of the function descriptor.
ret = (a->access_mem) (as, addr + offset, entry_point, 0, NULL); In case that changes in the future, we'd have to update the line
below and read the word at addr + offset: */
ret = (*a->access_mem) (as, addr, entry_point, 0, NULL);
if (ret < 0) if (ret < 0)
return ret; return ret;
return 0; return 0;
} }