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nvptx: Don't use global constructor for SSP setup 

Given that nvptx newlib currently restricts itself to ELIX level 1, this
is not already a problem.  However, in the following we'd like to lift
that restriction, and then run into:

    [...]/newlib/libc/ssp/stack_protector.c: In function ‘__stack_chk_init’:
    [...]/newlib/libc/ssp/stack_protector.c:31:1: sorry, unimplemented: global constructors not supported on this target
       31 | }
          | ^

GCC patch "nvptx: Support global constructors/destructors via 'collect2'"
has been posted, but not yet accepted.  Until that is resolved, use the
same manual SSP setup as for GCN.
This commit is contained in:
Thomas Schwinge 2022-10-11 23:34:19 +02:00
parent 52cb937004
commit 3b58032de1
1 changed files with 2 additions and 2 deletions
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4
newlib/libc/ssp/stack_protector.c
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@ -5,8 +5,8 @@
#include <string.h> #include <string.h>
#include <unistd.h> #include <unistd.h>
#if defined(__AMDGCN__) #if defined(__AMDGCN__) || defined(__nvptx__)
/* GCN does not support constructors, yet. */ /* Global constructors not supported on this target, yet. */
uintptr_t __stack_chk_guard = 0x00000aff; /* 0, 0, '\n', 255 */ uintptr_t __stack_chk_guard = 0x00000aff; /* 0, 0, '\n', 255 */
#else #else