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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2025-06-13 11:23:44 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2025-06-18 11:20:34 -0300 |
| commit | 8788bd77d68c6429c7f2dcbd22765525555c3cd8 (patch) | |
| tree | cfd360b33710c59c4c866cddab6b0564675c77c3 | |
| parent | 0dbbc44bfd256683705c391d97c4052320e2e64e (diff) | |
| download | glibc-8788bd77d68c6429c7f2dcbd22765525555c3cd8.zip glibc-8788bd77d68c6429c7f2dcbd22765525555c3cd8.tar.gz glibc-8788bd77d68c6429c7f2dcbd22765525555c3cd8.tar.bz2 | |
sparc: Fix sparc32 Fix argument passing to __libc_start_main (BZ 32981)
Commit 404526ee2e58f3c075253943ddc9988f4bd6b80c changed _start to write
the last argument to __libc_start_main without taking into consideration
that the function did not create a full stack frame, which leads to
overwriting the argv[0].
| -rw-r--r-- | sysdeps/sparc/sparc32/start.S | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sysdeps/sparc/sparc32/start.S b/sysdeps/sparc/sparc32/start.S index cef7c96..8393760 100644 --- a/sysdeps/sparc/sparc32/start.S +++ b/sysdeps/sparc/sparc32/start.S @@ -35,6 +35,7 @@ #include <sysdep.h> +#define FRAME_SIZE 104 .section ".text" .align 4 @@ -48,12 +49,12 @@ _start: /* Terminate the stack frame, and reserve space for functions to drop their arguments. */ mov %g0, %fp - sub %sp, 6*4, %sp + sub %sp, FRAME_SIZE, %sp /* Extract the arguments and environment as encoded on the stack. The argument info starts after one register window (16 words) past the SP. */ - ld [%sp+22*4], %o1 - add %sp, 23*4, %o2 + ld [%sp+168], %o1 + add %sp, 172, %o2 /* Load the addresses of the user entry points. */ #ifndef PIC |