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author | Dmitry Chagin <dchagin@FreeBSD.org> | 2023-07-07 16:56:02 +0000 |
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committer | Dmitry Chagin <dchagin@FreeBSD.org> | 2023-07-07 16:56:02 +0000 |
commit | bae6bb0698ee727df601e4418153787b5b4b0c9d (patch) | |
tree | 95562b31067adca5057db6e5b1aabd82ed3d6d0a /lib/csu/aarch64/crt1_c.c | |
parent | 1a2aa2ffb502403dc1f087722d1482c3c6e8d12b (diff) | |
download | src-bae6bb0698ee727df601e4418153787b5b4b0c9d.tar.gz src-bae6bb0698ee727df601e4418153787b5b4b0c9d.zip |
csu: Implement _start using as to satisfy unwinders on aarch64
The right unwinding stop indicator should be CFI-undefined PC.
https://dwarfstd.org/doc/Dwarf3.pdf - page 118:
If a Return Address register is defined in the virtual unwind table,
and its rule is undefined (for example, by DW_CFA_undefined), then
there is no return address and no call address, and the virtual
unwind of stack activations is complete.
Reviewed by:
Differential Revision: https://reviews.freebsd.org/D40623
Diffstat (limited to 'lib/csu/aarch64/crt1_c.c')
-rw-r--r-- | lib/csu/aarch64/crt1_c.c | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/lib/csu/aarch64/crt1_c.c b/lib/csu/aarch64/crt1_c.c index 7f4fea37ba1a..095c798046b4 100644 --- a/lib/csu/aarch64/crt1_c.c +++ b/lib/csu/aarch64/crt1_c.c @@ -32,19 +32,4 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); -#include "libc_private.h" #include "csu_common.h" - -void __start(int, char **, char **, void (*)(void)) __dead2; - -/* The entry function. */ -void -__start(int argc, char *argv[], char *env[], void (*cleanup)(void)) -{ -#ifdef GCRT - __libc_start1_gcrt(argc, argv, env, cleanup, main, &eprol, &etext); -__asm__("eprol:"); -#else - __libc_start1(argc, argv, env, cleanup, main); -#endif -} |